Merge commit 'origin/splitCyclic'

CHANGES-splitCyclic

@@ -0,0 +1,113 @@
+Short overview of the changes to have cyclics split into two halves.
+
+Cyclics
+-------
+The two cyclic halves are now split like processor patches. There should be no
+difference in running.
+
+Advantages:
+- decomposed cyclics can now be handled properly. It just needs to preserve
+the cyclic patch it originates from.
+- We can now construct a table of global transformations and handle
+points/edges/cells with transformations.
+- face ordering after topological changes becomes much easier since we
+now preserve what half the face comes from.
+- cyclic handling becomes more consistent with processor handling and can
+quite often be handled in the same condition.
+- transformation tensors now become single entry.
+
+The disadvantages:
+- a patch-wise loop now might need to store data to go to the neighbour half
+since it is no longer handled in a single patch.
+- decomposed cyclics now require overlapping communications so will
+only work in non-blocking mode. Hence the underlying message passing library
+will require overlapping communications with message tags.
+- it is quite a code-change and there might be some oversights.
+- once converted (see foamUpgradeCyclics below) cases are not backwards
+compatible with previous versions.
+
+
+blockMesh
+---------
+blockMeshDict now allows patch definition using the construct-from-dictionary
+constructor. This helps defining patches that require additional input e.g.
+directMapped and now cyclic:
+
+boundary         
+(
+    sides2_half0
+    {
+        type            cyclic;
+        neighbourPatch  sides2_half1;
+        faces           ((2 4 5 3));
+    }
+
+The syntax is - like the polyMesh/boundary file - a list of dictionaries with
+one additional entry 'faces' for the block faces. Above shows the new
+required entry 'neighbourPatch' for cyclic.
+
+blockMesh still reads the old format. For a cyclic it will automatically
+introduce two patches for the halves, with names xxx_half0 and xxx_half1.
+
+
+foamUpgradeCyclics
+------------------
+This is a tool which reads the polyMesh/boundary file and any vol/surface/point
+fields and converts them.
+It will check if anything needs to be converted, backup the current file to .old
+and split any cyclic patchFields into two entries.
+
+
+decomposePar
+------------
+Decomposes cyclics into processorCyclic:
+
+    procBoundary0to1throughsides1_half0
+    {
+        type            processorCyclic;
+        nFaces          1000;
+        startFace       91350;
+        myProcNo        0;
+        neighbProcNo    1;
+        referPatch      sides1_half0;
+    }
+
+They have an additional 'referPatch' entry which gives the (cyclic) patch
+to use for any transformation.
+
+
+Details
+-------
+- the cyclic patch dictionary has an entry neighbourPatch. The
+patch has new member functions:
+
+    //- Get neighbouring patchID
+    label neighbPatchID() const
+
+    //- Get neighbouring patch
+    const cyclicPolyPatch& neighbPatch()
+
+    //- Am I the owner half
+    bool owner()
+
+The cyclic still has forward() and reverse() transformations (with
+the reverse() equal to the neighbPatch().forward()).
+
+There is no transformLocalFace anymore - the ordering is the same for
+both halves.
+
+
+- 'pure' processor patches now are always coincident - they (should) have no
+transformation. As said above cyclics are decomposed into a derived
+type 'processorCyclic'.
+
+
+- processor patches use overlapping communication using a different message
+tag. This maps straight through into the MPI message tag.
+
+
+- when constructing a GeometricField from a dictionary it will explicitly
+check for non-existing entries for cyclic patches and exit with an error message
+warning to run foamUpgradeCyclics.
+
+

TODO

@@ -0,0 +1,100 @@
+- allocate/free tags.
+Not tested.
+
+OK - test blockMesh with cyclics
+unitTestCases/singleCyclic/
+
+OK - test cyclics sequential running.
+unitTestCases/singleCyclic/
+
+OK - test decomposePar
+tested channel395
+
+OK - FaceCellWave
+    unitTestCases/twoCavityCyclicForWallDistance/
+
+OK - non-parallel finite volume : channelFoam
+    unitTestCases/channel395-splitCyclic vs. channel395-dev
+
+OK - parallel finite volume with processorCyclic: channelFoam
+    unitTestCases/channel395-splitCyclic vs. channel395-dev
+
+OK - preProcessing/foamUpgradeCyclics
+
+OK - gamg - sequential.
+Tested on channel395-splitCyclic with GAMG.
+OK - gamg parallel.
+Tested on channel395-splitCyclic with GAMG.
+
+- initTransfer in GAMGprocessorInterfaces using nonblocking+tags
+untested.
+
+OK - cyclic baffles.
+Tested on t-junction-with-fan
+
+OK. - jumpCyclics/fanFvPatchField. All usages of jump() now need to account
+for being owner() or not.
+Tested on t-junction-with-fan.
+
+OK - regionSplit
+tested on singleCyclic
+
+OK - pointFields on cyclics. volPointInterpolation.
+tested on channel395-splitCyclic
+
+OK - fvMeshSubset
+tested on singleCyclic
+
+OK - pointEdgeWave (maybe test through inversePointDistanceDiffusivity?)
+tested on twoCavityCyclicForWallDistance
+
+OK - scotchDecomp
+tested with testCalcCSR on twoCavityCyclicForWallDistance
+
+NOT WORKING - fvMeshDistribute to split cyclic patches into ones
+  with different separation.
+tested on singleCyclic
+
+OK - test createPatch pointSync
+note: only works if face-centre position of 0th faces is ok since uses
+this for separation. Should in fact make cyclic planar using patch centre and
+normal?
+test on twoCavityCyclicForWallDistance with point (0 1 0) set to (0 1.001 0)
+
+NO PROBLEM - renumberMesh
+It doesn't do renumbering through cyclics.
+
+OK - rotational cyclics.
+Tested on movingCone-with-cyclics
+
+OK - LUscalarMatrix::convert still expects interfaces to be cyclic
+tested on channel395 with 'directSolveCoarsest true;' 
+
+OK - grep for size()/2
+
+- all tutorials with cyclics:
+    OK - incompressible/DNS/dnsFoam/boxTurb16
+    OK - incompressible/channelFoam/channel395
+    slight differences due to divergence. combustion/XiFoam/les/pitzDaily3D
+    OK - no cyclics. combustion/fireFoam/les/smallPoolFire2D
+    discreteMethods/dsmcFoam/freeSpacePeriodic
+    discreteMethods/dsmcFoam/wedge15Ma5
+    discreteMethods/molecularDynamics/mdEquilibrationFoam/periodicCubeArgon
+    OK - incompressible/boundaryFoam/boundaryLaunderSharma
+    OK - incompressible/boundaryFoam/boundaryWallFunctions
+    OK - incompressible/boundaryFoam/boundaryWallFunctionsProfile
+    OK - needs createBaffles. incompressible/pimpleFoam/t-junction-with-fan
+    OK - incompressible/simpleSRFFoam/mixer
+    OK - needs createBaffles. lagrangian/porousExplicitSourceReactingParcelFoam/filter
+    needs special coupledbcs. lagrangian/reactingParcelFilmFoam/multipleBoxes
+
+
+OK - createBaffles
+
+- have foamUpgradeCyclics split 'value' field
+- activeBaffleVelocity
+- kivaToFoam/readKivaGrid.H sorts cyclics (but in incorrect order?)
+- isoSurface.C
+- referredCellList.C
+- work out scheduled communication?
+OK - add neighbourPatch checking to 16x.

applications/utilities/mesh/advanced/combinePatchFaces/combinePatchFaces.C

@@ -295,8 +295,7 @@ label mergePatchFaces
                     const faceZone& fZone = mesh.faceZones()[zoneID];
                     zoneFlip = fZone.flipMap()[fZone.whichFace(newMasterI)];
                 }
-                label patchI = mesh.boundaryMesh().whichPatch(newMasterI);
-
+                label patchID = mesh.boundaryMesh().whichPatch(newMasterI);
 
                 Pout<< "Restoring new master face " << newMasterI
                     << " to vertices " << setFaceVerts[0] << endl;
@@ -311,7 +310,7 @@ label mergePatchFaces
                         own,                            // owner
                         -1,                             // neighbour
                         false,                          // face flip
-                        patchI,                         // patch for face
+                        patchID,                        // patch for face
                         false,                          // remove from zone
                         zoneID,                         // zone for face
                         zoneFlip                        // face flip in zone
@@ -336,7 +335,7 @@ label mergePatchFaces
                             -1,                     // masterEdgeID,
                             newMasterI,             // masterFaceID,
                             false,                  // flipFaceFlux,
-                            patchI,                 // patchID,
+                            patchID,                // patchID,
                             zoneID,                 // zoneID,
                             zoneFlip                // zoneFlip
                         )

applications/utilities/mesh/generation/blockMesh/blockMeshApp.C

@@ -206,25 +206,8 @@ int main(int argc, char *argv[])
 
     Info<< nl << "Creating polyMesh from blockMesh" << endl;
 
-    wordList patchNames = blocks.patchNames();
-    wordList patchTypes = blocks.patchTypes();
     word defaultFacesName = "defaultFaces";
     word defaultFacesType = emptyPolyPatch::typeName;
-    wordList patchPhysicalTypes = blocks.patchPhysicalTypes();
-
-
-    preservePatchTypes
-    (
-        runTime,
-        runTime.constant(),
-        polyMeshDir,
-        patchNames,
-        patchTypes,
-        defaultFacesName,
-        defaultFacesType,
-        patchPhysicalTypes
-    );
-
     polyMesh mesh
     (
         IOobject
@@ -236,11 +219,9 @@ int main(int argc, char *argv[])
         xferCopy(blocks.points()),           // could we re-use space?
         blocks.cells(),
         blocks.patches(),
-        patchNames,
-        patchTypes,
+        blocks.patchDicts(),
         defaultFacesName,
-        defaultFacesType,
-        patchPhysicalTypes
+        defaultFacesType
     );
 
 

applications/utilities/mesh/manipulation/createBaffles/createBaffles.C

@@ -134,7 +134,13 @@ int main(int argc, char *argv[])
     #include "addRegionOption.H"
 
     argList::validArgs.append("faceZone");
-    argList::validArgs.append("patch");
+    argList::validArgs.append("(masterPatch slavePatch)");
+    argList::addOption
+    (
+        "additionalPatches",
+        "((master2 slave2) .. (masterN slaveN))"
+    );
+    argList::addBoolOption("internalFacesOnly");
 
     argList::addOption
     (
@@ -159,7 +165,7 @@ int main(int argc, char *argv[])
     const faceZoneMesh& faceZones = mesh.faceZones();
 
     // Faces to baffle
-    faceZoneID zoneID(args[1], faceZones);
+    faceZoneID zoneID(args.additionalArgs()[0], faceZones);
 
     Info<< "Converting faces on zone " << zoneID.name()
         << " into baffles." << nl << endl;
@@ -182,28 +188,36 @@ int main(int argc, char *argv[])
     fZone.checkParallelSync(true);
 
     // Patches to put baffles into
-    DynamicList<label> newPatches(1);
+    DynamicList<label> newMasterPatches(1);
+    DynamicList<label> newSlavePatches(1);
 
-    const word patchName = args[2];
-    newPatches.append(findPatchID(mesh, patchName));
-    Info<< "Using patch " << patchName
-        << " at index " << newPatches[0] << endl;
+    const Pair<word> patchNames(IStringStream(args.additionalArgs()[1])());
+    newMasterPatches.append(findPatchID(mesh, patchNames[0]));
+    newSlavePatches.append(findPatchID(mesh, patchNames[1]));
+    Info<< "Using master patch " << patchNames[0]
+        << " at index " << newMasterPatches[0] << endl;
+    Info<< "Using slave patch " << patchNames[1]
+        << " at index " << newSlavePatches[0] << endl;
 
 
     // Additional patches
     if (args.optionFound("additionalPatches"))
     {
-        const wordList patchNames
+        const List<Pair<word> > patchNames
         (
             args.optionLookup("additionalPatches")()
         );
 
-        newPatches.reserve(patchNames.size() + 1);
+        newMasterPatches.reserve(patchNames.size() + 1);
+        newSlavePatches.reserve(patchNames.size() + 1);
         forAll(patchNames, i)
         {
-            newPatches.append(findPatchID(mesh, patchNames[i]));
-            Info<< "Using additional patch " << patchNames[i]
-                << " at index " << newPatches.last() << endl;
+            newMasterPatches.append(findPatchID(mesh, patchNames[i][0]));
+            newSlavePatches.append(findPatchID(mesh, patchNames[i][1]));
+            Info<< "Using additional patches " << patchNames[i]
+                << " at indices " << newMasterPatches.last()
+                << " and " << newSlavePatches.last()
+                << endl;
         }
     }
 
@@ -282,10 +296,8 @@ int main(int argc, char *argv[])
     }
     label nModified = 0;
 
-    forAll(newPatches, i)
+    forAll(newMasterPatches, i)
     {
-        label newPatchI = newPatches[i];
-
         // Pass 1. Do selected side of zone
         // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
@@ -305,7 +317,7 @@ int main(int argc, char *argv[])
                         faceI,                  // label of face
                         mesh.faceOwner()[faceI],// owner
                         false,                  // face flip
-                        newPatchI,              // patch for face
+                        newMasterPatches[i],    // patch for face
                         zoneID.index(),         // zone for face
                         false,                  // face flip in zone
                         modifiedFace            // modify or add status
@@ -321,7 +333,7 @@ int main(int argc, char *argv[])
                         faceI,                      // label of face
                         mesh.faceNeighbour()[faceI],// owner
                         true,                       // face flip
-                        newPatchI,                  // patch for face
+                        newMasterPatches[i],        // patch for face
                         zoneID.index(),             // zone for face
                         true,                       // face flip in zone
                         modifiedFace                // modify or add status
@@ -352,7 +364,7 @@ int main(int argc, char *argv[])
                         faceI,                              // label of face
                         mesh.faceNeighbour()[faceI],        // owner
                         true,                               // face flip
-                        newPatchI,                          // patch for face
+                        newSlavePatches[i],                 // patch for face
                         zoneID.index(),                     // zone for face
                         true,                               // face flip in zone
                         modifiedFace                        // modify or add
@@ -368,7 +380,7 @@ int main(int argc, char *argv[])
                         faceI,                  // label of face
                         mesh.faceOwner()[faceI],// owner
                         false,                  // face flip
-                        newPatchI,              // patch for face
+                        newSlavePatches[i],     // patch for face
                         zoneID.index(),         // zone for face
                         false,                  // face flip in zone
                         modifiedFace            // modify or add status
@@ -396,6 +408,8 @@ int main(int argc, char *argv[])
         {
             const polyPatch& pp = patches[patchI];
 
+            label newPatchI = newMasterPatches[i];
+
             if (pp.coupled() && patches[newPatchI].coupled())
             {
                 // Do not allow coupled faces to be moved to different coupled
@@ -445,7 +459,7 @@ int main(int argc, char *argv[])
 
 
     Info<< "Converted " << returnReduce(nModified, sumOp<label>())
-        << " faces into boundary faces on patch " << patchName << nl << endl;
+        << " faces into boundary faces on patches " << patchNames << nl << endl;
 
     if (!overwrite)
     {

applications/utilities/mesh/manipulation/createPatch/createPatch.C

@@ -197,69 +197,55 @@ void dumpCyclicMatch(const fileName& prefix, const polyMesh& mesh)
 
     forAll(patches, patchI)
     {
-        if (isA<cyclicPolyPatch>(patches[patchI]))
+        if
+        (
+            isA<cyclicPolyPatch>(patches[patchI])
+         && refCast<const cyclicPolyPatch>(patches[patchI]).owner()
+        )
         {
             const cyclicPolyPatch& cycPatch =
                 refCast<const cyclicPolyPatch>(patches[patchI]);
 
-            label halfSize = cycPatch.size()/2;
-
-            // Dump halves
+            // Dump patches
             {
-                OFstream str(prefix+cycPatch.name()+"_half0.obj");
+                OFstream str(prefix+cycPatch.name()+".obj");
                 Pout<< "Dumping " << cycPatch.name()
-                    << " half0 faces to " << str.name() << endl;
+                    << " faces to " << str.name() << endl;
                 meshTools::writeOBJ
                 (
                     str,
-                    static_cast<faceList>
-                    (
-                        SubList<face>
-                        (
-                            cycPatch,
-                            halfSize
-                        )
-                    ),
+                    cycPatch,
                     cycPatch.points()
                 );
             }
+
+            const cyclicPolyPatch& nbrPatch = cycPatch.neighbPatch();
             {
-                OFstream str(prefix+cycPatch.name()+"_half1.obj");
-                Pout<< "Dumping " << cycPatch.name()
-                    << " half1 faces to " << str.name() << endl;
+                OFstream str(prefix+nbrPatch.name()+".obj");
+                Pout<< "Dumping " << nbrPatch.name()
+                    << " faces to " << str.name() << endl;
                 meshTools::writeOBJ
                 (
                     str,
-                    static_cast<faceList>
-                    (
-                        SubList<face>
-                        (
-                            cycPatch,
-                            halfSize,
-                            halfSize
-                        )
-                    ),
-                    cycPatch.points()
+                    nbrPatch,
+                    nbrPatch.points()
                 );
             }
 
 
             // Lines between corresponding face centres
-            OFstream str(prefix+cycPatch.name()+"_match.obj");
+            OFstream str(prefix+cycPatch.name()+nbrPatch.name()+"_match.obj");
             label vertI = 0;
 
             Pout<< "Dumping cyclic match as lines between face centres to "
                 << str.name() << endl;
 
-            for (label faceI = 0; faceI < halfSize; faceI++)
+            forAll(cycPatch, faceI)
             {
                 const point& fc0 = mesh.faceCentres()[cycPatch.start()+faceI];
                 meshTools::writeOBJ(str, fc0);
                 vertI++;
-
-                label nbrFaceI = halfSize + faceI;
-                const point& fc1 =
-                    mesh.faceCentres()[cycPatch.start()+nbrFaceI];
+                const point& fc1 = mesh.faceCentres()[nbrPatch.start()+faceI];
                 meshTools::writeOBJ(str, fc1);
                 vertI++;
 
@@ -426,13 +412,19 @@ void syncPoints
     {
         const polyPatch& pp = patches[patchI];
 
-        if (isA<cyclicPolyPatch>(pp))
+        if
+        (
+            isA<cyclicPolyPatch>(pp)
+         && refCast<const cyclicPolyPatch>(pp).owner()
+        )
         {
             const cyclicPolyPatch& cycPatch =
                 refCast<const cyclicPolyPatch>(pp);
 
             const edgeList& coupledPoints = cycPatch.coupledPoints();
             const labelList& meshPts = cycPatch.meshPoints();
+            const cyclicPolyPatch& nbrPatch = cycPatch.neighbPatch();
+            const labelList& nbrMeshPts = nbrPatch.meshPoints();
 
             pointField half0Values(coupledPoints.size());
 
@@ -451,14 +443,13 @@ void syncPoints
             else if (cycPatch.separated())
             {
                 hasTransformation = true;
-                const vectorField& v = cycPatch.coupledPolyPatch::separation();
-                separateList(v, half0Values);
+                separateList(cycPatch.separation(), half0Values);
             }
 
             forAll(coupledPoints, i)
             {
                 const edge& e = coupledPoints[i];
-                label point1 = meshPts[e[1]];
+                label point1 = nbrMeshPts[e[1]];
                 points[point1] = half0Values[i];
             }
         }
@@ -785,13 +776,8 @@ int main(int argc, char *argv[])
         // current separation also includes the normal
         // ( separation_ = (nf&(Cr - Cf))*nf ).
 
-        // For processor patches:
-        // - disallow multiple separation/transformation. This basically
-        //   excludes decomposed cyclics. Use the (probably 0) separation
-        //   to align the points.
         // For cyclic patches:
-        // - for separated ones use our own recalculated offset vector
-        // - for rotational ones use current one.
+        // - for separated ones use user specified offset vector
 
         forAll(mesh.boundaryMesh(), patchI)
         {
@@ -808,13 +794,14 @@ int main(int argc, char *argv[])
                         << " separation[0] was "
                         << cpp.separation()[0] << endl;
 
-                    if (isA<cyclicPolyPatch>(pp))
+                    if (isA<cyclicPolyPatch>(pp) && pp.size())
                     {
                         const cyclicPolyPatch& cycpp =
                             refCast<const cyclicPolyPatch>(pp);
 
                         if (cycpp.transform() == cyclicPolyPatch::TRANSLATIONAL)
                         {
+                            // Force to wanted separation
                             Info<< "On cyclic translation patch " << pp.name()
                                 << " forcing uniform separation of "
                                 << cycpp.separationVector() << endl;
@@ -823,20 +810,16 @@ int main(int argc, char *argv[])
                         }
                         else
                         {
+                            const cyclicPolyPatch& nbr = cycpp.neighbPatch();
                             const_cast<vectorField&>(cpp.separation()) =
                                 pointField
                                 (
                                     1,
-                                    pp[pp.size()/2].centre(mesh.points())
-                                  - pp[0].centre(mesh.points())
+                                    nbr[0].centre(mesh.points())
+                                  - cycpp[0].centre(mesh.points())
                                 );
                         }
                     }
-                    else
-                    {
-                        const_cast<vectorField&>(cpp.separation())
-                        .setSize(1);
-                    }
                     Info<< "On coupled patch " << pp.name()
                         << " forcing uniform separation of "
                         << cpp.separation() << endl;

applications/utilities/mesh/manipulation/renumberMesh/renumberMesh.C

@@ -305,6 +305,7 @@ autoPtr<mapPolyMesh> reorderMesh
     labelList patchStarts(patches.size());
     labelList oldPatchNMeshPoints(patches.size());
     labelListList patchPointMap(patches.size());
+
     forAll(patches, patchI)
     {
         patchSizes[patchI] = patches[patchI].size();
@@ -320,7 +321,8 @@ autoPtr<mapPolyMesh> reorderMesh
         xferMove(newOwner),
         xferMove(newNeighbour),
         patchSizes,
-        patchStarts
+        patchStarts,
+        true
     );
 
     return autoPtr<mapPolyMesh>

applications/utilities/mesh/manipulation/splitMeshRegions/splitMeshRegions.C

@@ -560,7 +560,7 @@ void getInterfaceSizes
         label cellI = mesh.faceOwner()[i+mesh.nInternalFaces()];
         coupledRegion[i] = cellRegion[cellI];
     }
-    syncTools::swapBoundaryFaceList(mesh, coupledRegion, false);
+    syncTools::swapBoundaryFaceList(mesh, coupledRegion);
 
     forAll(coupledRegion, i)
     {
@@ -730,7 +730,7 @@ autoPtr<mapPolyMesh> createRegionMesh
         label cellI = mesh.faceOwner()[i+mesh.nInternalFaces()];
         coupledRegion[i] = cellRegion[cellI];
     }
-    syncTools::swapBoundaryFaceList(mesh, coupledRegion, false);
+    syncTools::swapBoundaryFaceList(mesh, coupledRegion);
 
 
     // Topology change container. Start off from existing mesh.
@@ -1300,7 +1300,7 @@ void getZoneID
     {
         neiZoneID[i] = zoneID[mesh.faceOwner()[i+mesh.nInternalFaces()]];
     }
-    syncTools::swapBoundaryFaceList(mesh, neiZoneID, false);
+    syncTools::swapBoundaryFaceList(mesh, neiZoneID);
 }
 
 

applications/utilities/parallelProcessing/decomposePar/decomposePar.C

@@ -62,7 +62,6 @@ Usage
 #include "OSspecific.H"
 #include "fvCFD.H"
 #include "IOobjectList.H"
-#include "processorFvPatchFields.H"
 #include "domainDecomposition.H"
 #include "labelIOField.H"
 #include "scalarIOField.H"

applications/utilities/parallelProcessing/decomposePar/domainDecomposition.C

@@ -28,6 +28,7 @@ License
 #include "dictionary.H"
 #include "labelIOList.H"
 #include "processorPolyPatch.H"
+#include "processorCyclicPolyPatch.H"
 #include "fvMesh.H"
 #include "OSspecific.H"
 #include "Map.H"
@@ -108,7 +109,8 @@ Foam::domainDecomposition::domainDecomposition(const IOobject& io)
     procNeighbourProcessors_(nProcs_),
     procProcessorPatchSize_(nProcs_),
     procProcessorPatchStartIndex_(nProcs_),
-    cyclicParallel_(false)
+    procProcessorPatchSubPatchIDs_(nProcs_),
+    procProcessorPatchSubPatchStarts_(nProcs_)
 {
     if (decompositionDict_.found("distributed"))
     {
@@ -343,12 +345,42 @@ bool Foam::domainDecomposition::writeDecomposition()
         const labelList& curProcessorPatchStarts =
             procProcessorPatchStartIndex_[procI];
 
+        const labelListList& curSubPatchIDs = 
+            procProcessorPatchSubPatchIDs_[procI];
+
+        const labelListList& curSubStarts = 
+            procProcessorPatchSubPatchStarts_[procI];
+
         const polyPatchList& meshPatches = boundaryMesh();
 
+
+        // Count the number of inter-proc patches
+        label nInterProcPatches = 0;
+        forAll(curSubPatchIDs, procPatchI)
+        {
+            Info<< "For processor " << procI
+                << " have to destination processor "
+                << curNeighbourProcessors[procPatchI] << endl;
+
+            forAll(curSubPatchIDs[procPatchI], i)
+            {
+                Info<< "    from patch:" << curSubPatchIDs[procPatchI][i]
+                    << " starting at:" << curSubStarts[procPatchI][i]
+                    << endl;
+            }
+
+            nInterProcPatches += curSubPatchIDs[procPatchI].size();
+        }
+
+        Info<< "For processor " << procI
+            << " have " << nInterProcPatches << " to neighbouring processors"
+            << endl;
+
+
         List<polyPatch*> procPatches
         (
             curPatchSizes.size()
-          + curProcessorPatchSizes.size(),
+          + nInterProcPatches,          //curProcessorPatchSizes.size(),
             reinterpret_cast<polyPatch*>(0)
         );
 
@@ -385,23 +417,84 @@ bool Foam::domainDecomposition::writeDecomposition()
 
         forAll(curProcessorPatchSizes, procPatchI)
         {
-            procPatches[nPatches] =
-                new processorPolyPatch
-                (
-                    word("procBoundary") + Foam::name(procI)
-                  + word("to")
-                  + Foam::name(curNeighbourProcessors[procPatchI]),
-                    curProcessorPatchSizes[procPatchI],
-                    curProcessorPatchStarts[procPatchI],
-                    nPatches,
-                    procMesh.boundaryMesh(),
-                    procI,
-                    curNeighbourProcessors[procPatchI]
-            );
+            const labelList& subPatchID = curSubPatchIDs[procPatchI];
+            const labelList& subStarts = curSubStarts[procPatchI];
 
-            nPatches++;
+            label curStart = curProcessorPatchStarts[procPatchI];
+
+            forAll(subPatchID, i)
+            {
+                label size =
+                (
+                    i < subPatchID.size()-1
+                  ? subStarts[i+1] - subStarts[i]
+                  : curProcessorPatchSizes[procPatchI] - subStarts[i]
+                );
+
+                Info<< "From processor:" << procI << endl
+                    << "  to processor:" << curNeighbourProcessors[procPatchI]
+                    << endl
+                    << "    via patch:" << subPatchID[i] << endl
+                    << "    start    :" << curStart << endl
+                    << "    size     :" << size << endl;
+
+                if (subPatchID[i] == -1)
+                {
+                    // From internal faces
+                    procPatches[nPatches] =
+                        new processorPolyPatch
+                        (
+                            word("procBoundary") + Foam::name(procI)
+                          + "to"
+                          + Foam::name(curNeighbourProcessors[procPatchI]),
+                            size,
+                            curStart,
+                            nPatches,
+                            procMesh.boundaryMesh(),
+                            procI,
+                            curNeighbourProcessors[procPatchI]
+                        );
+                }
+                else
+                {
+                    // From cyclic
+                    const word& referPatch =
+                        boundaryMesh()[subPatchID[i]].name();
+
+                    procPatches[nPatches] =
+                        new processorCyclicPolyPatch
+                        (
+                            word("procBoundary") + Foam::name(procI)
+                          + "to"
+                          + Foam::name(curNeighbourProcessors[procPatchI])
+                          + "through"
+                          + referPatch,
+                            size,
+                            curStart,
+                            nPatches,
+                            procMesh.boundaryMesh(),
+                            procI,
+                            curNeighbourProcessors[procPatchI],
+                            referPatch
+                        );
+                }
+
+                curStart += size;
+
+                nPatches++;
+            }
         }
 
+
+forAll(procPatches, patchI)
+{
+    Pout<< "    " << patchI
+        << '\t' << "name:" << procPatches[patchI]->name()
+        << '\t' << "type:" << procPatches[patchI]->type()
+        << '\t' << "size:" << procPatches[patchI]->size()
+        << endl;
+}
+
         // Add boundary patches
         procMesh.addPatches(procPatches);
 
@@ -667,11 +760,7 @@ bool Foam::domainDecomposition::writeDecomposition()
 
         forAll(procMesh.boundaryMesh(), patchi)
         {
-            if
-            (
-                procMesh.boundaryMesh()[patchi].type()
-             == processorPolyPatch::typeName
-            )
+            if (isA<processorPolyPatch>(procMesh.boundaryMesh()[patchi]))
             {
                 const processorPolyPatch& ppp =
                 refCast<const processorPolyPatch>
@@ -749,11 +838,7 @@ bool Foam::domainDecomposition::writeDecomposition()
         // (= identity map for original patches, -1 for processor patches)
         label nMeshPatches = curPatchSizes.size();
         labelList procBoundaryAddressing(identity(nMeshPatches));
-        procBoundaryAddressing.setSize
-        (
-            nMeshPatches+curProcessorPatchSizes.size(),
-            -1
-        );
+        procBoundaryAddressing.setSize(nMeshPatches+nProcPatches, -1);
 
         labelIOList boundaryProcAddressing
         (

applications/utilities/parallelProcessing/decomposePar/domainDecomposition.H

@@ -29,6 +29,7 @@ Description
 
 SourceFiles
     domainDecomposition.C
+    decomposeMesh.C
 
 \*---------------------------------------------------------------------------*/
 
@@ -78,9 +79,9 @@ class domainDecomposition
         // index is negative, the processor face is the reverse of the
         // original face. In order to do this properly, all face
         // indices will be incremented by 1 and the decremented as
-        // necessary t avoid the problem of face number zero having no
-        // sign.
-        labelListList procFaceAddressing_;
+        // necessary to avoid the problem of face number zero having no
+        // sign.  
+        List<DynamicList<label> > procFaceAddressing_;
 
         //- Labels of cells for each processor
         labelListList procCellAddressing_;
@@ -93,18 +94,23 @@ class domainDecomposition
         // Excludes inter-processor boundaries
         labelListList procPatchStartIndex_;
 
+
+        // Per inter-processor patch information
+
         //- Neighbour processor ID for inter-processor boundaries
         labelListList procNeighbourProcessors_;
 
         //- Sizes for inter-processor patches
         labelListList procProcessorPatchSize_;
 
-        //- Start indices for inter-processor patches
+        //- Start indices (in procFaceAddressing_) for inter-processor patches
         labelListList procProcessorPatchStartIndex_;
 
-        //- Are there cyclic-parallel faces
-        bool cyclicParallel_;
+        //- Sub patch IDs for inter-processor patches
+        List<labelListList> procProcessorPatchSubPatchIDs_;
 
+        //- Sub patch sizes for inter-processor patches
+        List<labelListList> procProcessorPatchSubPatchStarts_;
 
     // Private Member Functions
 
@@ -118,6 +124,21 @@ class domainDecomposition
             labelList& elementToZone
         );
 
+        //- Append single element to list
+        static void append(labelList&, const label);
+
+        //- Add face to interProcessor patch.
+        void addInterProcFace
+        (
+            const label facei,
+            const label ownerProc,
+            const label nbrProc,
+
+            List<Map<label> >&,
+            List<DynamicList<DynamicList<label> > >&
+        ) const;
+
+
 public:
 
     // Constructors

applications/utilities/parallelProcessing/decomposePar/domainDecompositionDistribute.C

@@ -26,7 +26,6 @@ License
 #include "domainDecomposition.H"
 #include "decompositionMethod.H"
 #include "cpuTime.H"
-#include "cyclicPolyPatch.H"
 #include "cellSet.H"
 #include "regionSplit.H"
 

applications/utilities/parallelProcessing/decomposePar/domainDecompositionMesh.C

@@ -39,6 +39,63 @@ Description
 
 // * * * * * * * * * * * * * Private Member Functions  * * * * * * * * * * * //
 
+void Foam::domainDecomposition::append(labelList& lst, const label elem)
+{
+    label sz = lst.size();
+    lst.setSize(sz+1);
+    lst[sz] = elem;
+}
+
+
+void Foam::domainDecomposition::addInterProcFace
+(
+    const label facei,
+    const label ownerProc,
+    const label nbrProc,
+
+    List<Map<label> >& nbrToInterPatch,
+    List<DynamicList<DynamicList<label> > >& interPatchFaces
+) const
+{
+    Map<label>::iterator patchIter = nbrToInterPatch[ownerProc].find(nbrProc);
+
+    // Introduce turning index only for internal faces (are duplicated).
+    label ownerIndex = facei+1;
+    label nbrIndex = -(facei+1);
+
+    if (patchIter != nbrToInterPatch[ownerProc].end())
+    {
+        // Existing interproc patch. Add to both sides.
+        label toNbrProcPatchI = patchIter();
+        interPatchFaces[ownerProc][toNbrProcPatchI].append(ownerIndex);
+
+        if (isInternalFace(facei))
+        {
+            label toOwnerProcPatchI = nbrToInterPatch[nbrProc][ownerProc];
+            interPatchFaces[nbrProc][toOwnerProcPatchI].append(nbrIndex);
+        }
+    }
+    else
+    {
+        // Create new interproc patches.
+        label toNbrProcPatchI = nbrToInterPatch[ownerProc].size();
+        nbrToInterPatch[ownerProc].insert(nbrProc, toNbrProcPatchI);
+        DynamicList<label> oneFace;
+        oneFace.append(ownerIndex);
+        interPatchFaces[ownerProc].append(oneFace);
+
+        if (isInternalFace(facei))
+        {
+            label toOwnerProcPatchI = nbrToInterPatch[nbrProc].size();
+            nbrToInterPatch[nbrProc].insert(ownerProc, toOwnerProcPatchI);
+            oneFace.clear();
+            oneFace.append(nbrIndex);
+            interPatchFaces[nbrProc].append(oneFace);
+        }
+    }
+}
+
+
 void Foam::domainDecomposition::decomposeMesh()
 {
     // Decide which cell goes to which processor
@@ -60,31 +117,8 @@ void Foam::domainDecomposition::decomposeMesh()
 
     Info<< "\nDistributing cells to processors" << endl;
 
-    // Memory management
-    {
-        List<SLList<label> > procCellList(nProcs_);
-
-        forAll(cellToProc_, celli)
-        {
-            if (cellToProc_[celli] >= nProcs_)
-            {
-                FatalErrorIn("domainDecomposition::decomposeMesh()")
-                    << "Impossible processor label " << cellToProc_[celli]
-                    << "for cell " << celli
-                    << abort(FatalError);
-            }
-            else
-            {
-                procCellList[cellToProc_[celli]].append(celli);
-            }
-        }
-
-        // Convert linked lists into normal lists
-        forAll(procCellList, procI)
-        {
-            procCellAddressing_[procI] = procCellList[procI];
-        }
-    }
+    // Cells per processor
+    procCellAddressing_ = invertOneToMany(nProcs_, cellToProc_);
 
     Info<< "\nDistributing faces to processors" << endl;
 
@@ -93,504 +127,333 @@ void Foam::domainDecomposition::decomposeMesh()
     // same processor, the face is an internal face. If they are different,
     // it belongs to both processors.
 
-    // Memory management
+    procFaceAddressing_.setSize(nProcs_);
+
+    // Internal faces
+    forAll (neighbour, facei)
     {
-        List<SLList<label> > procFaceList(nProcs_);
-
-        forAll(neighbour, facei)
+        if (cellToProc_[owner[facei]] == cellToProc_[neighbour[facei]])
         {
-            if (cellToProc_[owner[facei]] == cellToProc_[neighbour[facei]])
-            {
-                // Face internal to processor
-                procFaceList[cellToProc_[owner[facei]]].append(facei);
-            }
+            // Face internal to processor. Notice no turning index.
+            procFaceAddressing_[cellToProc_[owner[facei]]].append(facei+1);
+        }
+    }
+
+    // for all processors, set the size of start index and patch size
+    // lists to the number of patches in the mesh
+    forAll (procPatchSize_, procI)
+    {
+        procPatchSize_[procI].setSize(patches.size());
+        procPatchStartIndex_[procI].setSize(patches.size());
+    }
+
+    forAll (patches, patchi)
+    {
+        // Reset size and start index for all processors
+        forAll (procPatchSize_, procI)
+        {
+            procPatchSize_[procI][patchi] = 0;
+            procPatchStartIndex_[procI][patchi] =
+                procFaceAddressing_[procI].size();
         }
 
-        // Detect inter-processor boundaries
+        const label patchStart = patches[patchi].start();
 
-        // Neighbour processor for each subdomain
-        List<SLList<label> > interProcBoundaries(nProcs_);
-
-        // Face labels belonging to each inter-processor boundary
-        List<SLList<SLList<label> > > interProcBFaces(nProcs_);
-
-        List<SLList<label> > procPatchIndex(nProcs_);
-
-        forAll(neighbour, facei)
+        if (!isA<cyclicPolyPatch>(patches[patchi]))
         {
-            if (cellToProc_[owner[facei]] != cellToProc_[neighbour[facei]])
+            // Normal patch. Add faces to processor where the cell
+            // next to the face lives
+
+            const unallocLabelList& patchFaceCells =
+                patches[patchi].faceCells();
+
+            forAll (patchFaceCells, facei)
             {
-                // inter - processor patch face found. Go through the list of
-                // inside boundaries for the owner processor and try to find
-                // this inter-processor patch.
+                const label curProc = cellToProc_[patchFaceCells[facei]];
 
-                label ownerProc = cellToProc_[owner[facei]];
-                label neighbourProc = cellToProc_[neighbour[facei]];
+                // add the face without turning index
+                procFaceAddressing_[curProc].append(patchStart+facei+1);
 
-                SLList<label>::iterator curInterProcBdrsOwnIter =
-                    interProcBoundaries[ownerProc].begin();
-
-                SLList<SLList<label> >::iterator curInterProcBFacesOwnIter =
-                    interProcBFaces[ownerProc].begin();
-
-                bool interProcBouFound = false;
-
-                // WARNING: Synchronous SLList iterators
-
-                for
-                (
-                    ;
-                    curInterProcBdrsOwnIter
-                 != interProcBoundaries[ownerProc].end()
-                 && curInterProcBFacesOwnIter
-                 != interProcBFaces[ownerProc].end();
-                    ++curInterProcBdrsOwnIter, ++curInterProcBFacesOwnIter
-                )
-                {
-                    if (curInterProcBdrsOwnIter() == neighbourProc)
-                    {
-                        // the inter - processor boundary exists. Add the face
-                        interProcBouFound = true;
-
-                        curInterProcBFacesOwnIter().append(facei);
-
-                        SLList<label>::iterator curInterProcBdrsNeiIter =
-                            interProcBoundaries[neighbourProc].begin();
-
-                        SLList<SLList<label> >::iterator
-                            curInterProcBFacesNeiIter =
-                            interProcBFaces[neighbourProc].begin();
-
-                        bool neighbourFound = false;
-
-                        // WARNING: Synchronous SLList iterators
-
-                        for
-                        (
-                            ;
-                            curInterProcBdrsNeiIter !=
-                            interProcBoundaries[neighbourProc].end()
-                         && curInterProcBFacesNeiIter !=
-                            interProcBFaces[neighbourProc].end();
-                            ++curInterProcBdrsNeiIter,
-                            ++curInterProcBFacesNeiIter
-                        )
-                        {
-                            if (curInterProcBdrsNeiIter() == ownerProc)
-                            {
-                                // boundary found. Add the face
-                                neighbourFound = true;
-
-                                curInterProcBFacesNeiIter().append(facei);
-                            }
-
-                            if (neighbourFound) break;
-                        }
-
-                        if (interProcBouFound && !neighbourFound)
-                        {
-                            FatalErrorIn("domainDecomposition::decomposeMesh()")
-                                << "Inconsistency in inter - "
-                                << "processor boundary lists for processors "
-                                << ownerProc << " and " << neighbourProc
-                                << abort(FatalError);
-                        }
-                    }
-
-                    if (interProcBouFound) break;
-                }
-
-                if (!interProcBouFound)
-                {
-                    // inter - processor boundaries do not exist and need to
-                    // be created
-
-                    // set the new addressing information
-
-                    // owner
-                    interProcBoundaries[ownerProc].append(neighbourProc);
-                    interProcBFaces[ownerProc].append(SLList<label>(facei));
-
-                    // neighbour
-                    interProcBoundaries[neighbourProc].append(ownerProc);
-                    interProcBFaces[neighbourProc].append(SLList<label>(facei));
-                }
+                // increment the number of faces for this patch
+                procPatchSize_[curProc][patchi]++;
             }
         }
-
-        // Loop through patches. For cyclic boundaries detect inter-processor
-        // faces; for all other, add faces to the face list and remember start
-        // and size of all patches.
-
-        // for all processors, set the size of start index and patch size
-        // lists to the number of patches in the mesh
-        forAll(procPatchSize_, procI)
+        else
         {
-            procPatchSize_[procI].setSize(patches.size());
-            procPatchStartIndex_[procI].setSize(patches.size());
-        }
+            const cyclicPolyPatch& pp = refCast<const cyclicPolyPatch>
+            (
+                patches[patchi]
+            );
+            // cyclic: check opposite side on this processor
+            const unallocLabelList& patchFaceCells = pp.faceCells();
 
-        forAll(patches, patchi)
-        {
-            // Reset size and start index for all processors
-            forAll(procPatchSize_, procI)
+            const unallocLabelList& nbrPatchFaceCells =
+                pp.neighbPatch().faceCells();
+
+            forAll (patchFaceCells, facei)
             {
-                procPatchSize_[procI][patchi] = 0;
-                procPatchStartIndex_[procI][patchi] =
-                    procFaceList[procI].size();
-            }
-
-            const label patchStart = patches[patchi].start();
-
-            if (!isA<cyclicPolyPatch>(patches[patchi]))
-            {
-                // Normal patch. Add faces to processor where the cell
-                // next to the face lives
-
-                const unallocLabelList& patchFaceCells =
-                    patches[patchi].faceCells();
-
-                forAll(patchFaceCells, facei)
+                const label curProc = cellToProc_[patchFaceCells[facei]];
+                const label nbrProc = cellToProc_[nbrPatchFaceCells[facei]];
+                if (curProc == nbrProc)
                 {
-                    const label curProc = cellToProc_[patchFaceCells[facei]];
-
-                    // add the face
-                    procFaceList[curProc].append(patchStart + facei);
-
+                    // add the face without turning index
+                    procFaceAddressing_[curProc].append(patchStart+facei+1);
                     // increment the number of faces for this patch
                     procPatchSize_[curProc][patchi]++;
                 }
             }
-            else
-            {
-                // Cyclic patch special treatment
-
-                const polyPatch& cPatch = patches[patchi];
-
-                const label cycOffset = cPatch.size()/2;
-
-                // Set reference to faceCells for both patches
-                const labelList::subList firstFaceCells
-                (
-                    cPatch.faceCells(),
-                    cycOffset
-                );
-
-                const labelList::subList secondFaceCells
-                (
-                    cPatch.faceCells(),
-                    cycOffset,
-                    cycOffset
-                );
-
-                forAll(firstFaceCells, facei)
-                {
-                    if
-                    (
-                        cellToProc_[firstFaceCells[facei]]
-                     != cellToProc_[secondFaceCells[facei]]
-                    )
-                    {
-                        // This face becomes an inter-processor boundary face
-                        // inter - processor patch face found. Go through
-                        // the list of inside boundaries for the owner
-                        // processor and try to find this inter-processor
-                        // patch.
-
-                        cyclicParallel_ = true;
-
-                        label ownerProc = cellToProc_[firstFaceCells[facei]];
-                        label neighbourProc =
-                            cellToProc_[secondFaceCells[facei]];
-
-                        SLList<label>::iterator curInterProcBdrsOwnIter =
-                            interProcBoundaries[ownerProc].begin();
-
-                        SLList<SLList<label> >::iterator
-                            curInterProcBFacesOwnIter =
-                            interProcBFaces[ownerProc].begin();
-
-                        bool interProcBouFound = false;
-
-                        // WARNING: Synchronous SLList iterators
-
-                        for
-                        (
-                            ;
-                            curInterProcBdrsOwnIter !=
-                            interProcBoundaries[ownerProc].end()
-                         && curInterProcBFacesOwnIter !=
-                            interProcBFaces[ownerProc].end();
-                            ++curInterProcBdrsOwnIter,
-                            ++curInterProcBFacesOwnIter
-                        )
-                        {
-                            if (curInterProcBdrsOwnIter() == neighbourProc)
-                            {
-                                // the inter - processor boundary exists.
-                                // Add the face
-                                interProcBouFound = true;
-
-                                curInterProcBFacesOwnIter().append
-                                    (patchStart + facei);
-
-                                SLList<label>::iterator curInterProcBdrsNeiIter
-                                   = interProcBoundaries[neighbourProc].begin();
-
-                                SLList<SLList<label> >::iterator
-                                    curInterProcBFacesNeiIter =
-                                    interProcBFaces[neighbourProc].begin();
-
-                                bool neighbourFound = false;
-
-                                // WARNING: Synchronous SLList iterators
-
-                                for
-                                (
-                                    ;
-                                    curInterProcBdrsNeiIter
-                                   != interProcBoundaries[neighbourProc].end()
-                                 && curInterProcBFacesNeiIter
-                                   != interProcBFaces[neighbourProc].end();
-                                    ++curInterProcBdrsNeiIter,
-                                    ++curInterProcBFacesNeiIter
-                                )
-                                {
-                                    if (curInterProcBdrsNeiIter() == ownerProc)
-                                    {
-                                        // boundary found. Add the face
-                                        neighbourFound = true;
-
-                                        curInterProcBFacesNeiIter()
-                                            .append
-                                            (
-                                                patchStart
-                                              + cycOffset
-                                              + facei
-                                            );
-                                    }
-
-                                    if (neighbourFound) break;
-                                }
-
-                                if (interProcBouFound && !neighbourFound)
-                                {
-                                    FatalErrorIn
-                                    (
-                                        "domainDecomposition::decomposeMesh()"
-                                    )   << "Inconsistency in inter-processor "
-                                        << "boundary lists for processors "
-                                        << ownerProc << " and " << neighbourProc
-                                        << " in cyclic boundary matching"
-                                        << abort(FatalError);
-                                }
-                            }
-
-                            if (interProcBouFound) break;
-                        }
-
-                        if (!interProcBouFound)
-                        {
-                            // inter - processor boundaries do not exist
-                            // and need to be created
-
-                            // set the new addressing information
-
-                            // owner
-                            interProcBoundaries[ownerProc]
-                                .append(neighbourProc);
-                            interProcBFaces[ownerProc]
-                                .append(SLList<label>(patchStart + facei));
-
-                            // neighbour
-                            interProcBoundaries[neighbourProc]
-                                .append(ownerProc);
-                            interProcBFaces[neighbourProc]
-                                .append
-                                (
-                                    SLList<label>
-                                    (
-                                        patchStart
-                                      + cycOffset
-                                      + facei
-                                    )
-                                );
-                        }
-                    }
-                    else
-                    {
-                        // This cyclic face remains on the processor
-                        label ownerProc = cellToProc_[firstFaceCells[facei]];
-
-                        // add the face
-                        procFaceList[ownerProc].append(patchStart + facei);
-
-                        // increment the number of faces for this patch
-                        procPatchSize_[ownerProc][patchi]++;
-
-                        // Note: I cannot add the other side of the cyclic
-                        // boundary here because this would violate the order.
-                        // They will be added in a separate loop below
-                        //
-                    }
-                }
-
-                // Ordering in cyclic boundaries is important.
-                // Add the other half of cyclic faces for cyclic boundaries
-                // that remain on the processor
-                forAll(secondFaceCells, facei)
-                {
-                    if
-                    (
-                        cellToProc_[firstFaceCells[facei]]
-                     == cellToProc_[secondFaceCells[facei]]
-                    )
-                    {
-                        // This cyclic face remains on the processor
-                        label ownerProc = cellToProc_[firstFaceCells[facei]];
-
-                        // add the second face
-                        procFaceList[ownerProc].append
-                            (patchStart + cycOffset + facei);
-
-                        // increment the number of faces for this patch
-                        procPatchSize_[ownerProc][patchi]++;
-                    }
-                }
-            }
         }
+    }
 
-        // Convert linked lists into normal lists
-        // Add inter-processor boundaries and remember start indices
-        forAll(procFaceList, procI)
+
+    // Done internal bits of the new mesh and the ordinary patches.
+
+
+    // Per processor, from neighbour processor to the interprocessorpatch that
+    // communicates with that neighbour.
+    List<Map<label> > procNbrToInterPatch(nProcs_);
+    // Per processor the faces per interprocessorpatch.
+    List<DynamicList<DynamicList<label> > > interPatchFaces(nProcs_);
+
+    // Processor boundaries from internal faces
+    forAll (neighbour, facei)
+    {
+        label ownerProc = cellToProc_[owner[facei]];
+        label nbrProc = cellToProc_[neighbour[facei]];
+
+        if (ownerProc != nbrProc)
         {
-            // Get internal and regular boundary processor faces
-            SLList<label>& curProcFaces = procFaceList[procI];
-
-            // Get reference to processor face addressing
-            labelList& curProcFaceAddressing = procFaceAddressing_[procI];
-
-            labelList& curProcNeighbourProcessors =
-                procNeighbourProcessors_[procI];
-
-            labelList& curProcProcessorPatchSize =
-                procProcessorPatchSize_[procI];
-
-            labelList& curProcProcessorPatchStartIndex =
-                procProcessorPatchStartIndex_[procI];
-
-            // calculate the size
-            label nFacesOnProcessor = curProcFaces.size();
-
-            for
+            // inter - processor patch face found.
+            addInterProcFace
             (
-                SLList<SLList<label> >::iterator curInterProcBFacesIter =
-                    interProcBFaces[procI].begin();
-                curInterProcBFacesIter != interProcBFaces[procI].end();
-                ++curInterProcBFacesIter
-            )
-            {
-                nFacesOnProcessor += curInterProcBFacesIter().size();
-            }
+                facei,
+                ownerProc,
+                nbrProc,
 
-            curProcFaceAddressing.setSize(nFacesOnProcessor);
+                procNbrToInterPatch,
+                interPatchFaces
+            );
+        }
+    }
 
-            // Fill in the list. Calculate turning index.
-            // Turning index will be -1 only for some faces on processor
-            // boundaries, i.e. the ones where the current processor ID
-            // is in the cell which is a face neighbour.
-            // Turning index is stored as the sign of the face addressing list
+    // Add the proper processor faces to the sub information. For faces
+    // originating from internal faces this is always -1.
+    List<labelListList> subPatchIDs(nProcs_);
+    List<labelListList> subPatchStarts(nProcs_);
+    forAll(interPatchFaces, procI)
+    {
+        label nInterfaces = interPatchFaces[procI].size();
 
-            label nFaces = 0;
+        subPatchIDs[procI].setSize(nInterfaces, labelList(1, -1));
+        subPatchStarts[procI].setSize(nInterfaces, labelList(1, 0));
+    }
 
-            // Add internal and boundary faces
-            // Remember to increment the index by one such that the
-            // turning index works properly.
-            forAllConstIter(SLList<label>, curProcFaces, curProcFacesIter)
-            {
-                curProcFaceAddressing[nFaces] = curProcFacesIter() + 1;
-                nFaces++;
-            }
-
-            // Add inter-processor boundary faces. At the beginning of each
-            // patch, grab the patch start index and size
-
-            curProcNeighbourProcessors.setSize
+    // Processor boundaries from split cyclics
+    forAll (patches, patchi)
+    {
+        if (isA<cyclicPolyPatch>(patches[patchi]))
+        {
+            const cyclicPolyPatch& pp = refCast<const cyclicPolyPatch>
             (
-                interProcBoundaries[procI].size()
+                patches[patchi]
             );
 
-            curProcProcessorPatchSize.setSize
-            (
-                interProcBoundaries[procI].size()
-            );
+            // cyclic: check opposite side on this processor
+            const unallocLabelList& patchFaceCells = pp.faceCells();
+            const unallocLabelList& nbrPatchFaceCells =
+                pp.neighbPatch().faceCells();
 
-            curProcProcessorPatchStartIndex.setSize
-            (
-                interProcBoundaries[procI].size()
-            );
-
-            label nProcPatches = 0;
-
-            SLList<label>::iterator curInterProcBdrsIter =
-                interProcBoundaries[procI].begin();
-
-            SLList<SLList<label> >::iterator curInterProcBFacesIter =
-                interProcBFaces[procI].begin();
-
-            for
-            (
-                ;
-                curInterProcBdrsIter != interProcBoundaries[procI].end()
-             && curInterProcBFacesIter != interProcBFaces[procI].end();
-                ++curInterProcBdrsIter, ++curInterProcBFacesIter
-            )
+            // Store old sizes. Used to detect which inter-proc patches
+            // have been added to.
+            labelListList oldInterfaceSizes(nProcs_);
+            forAll(oldInterfaceSizes, procI)
             {
-                curProcNeighbourProcessors[nProcPatches] =
-                    curInterProcBdrsIter();
+                labelList& curOldSizes = oldInterfaceSizes[procI];
 
-                // Get start index for processor patch
-                curProcProcessorPatchStartIndex[nProcPatches] = nFaces;
-
-                label& curSize =
-                    curProcProcessorPatchSize[nProcPatches];
-
-                curSize = 0;
-
-                // add faces for this processor boundary
-
-                forAllConstIter
-                (
-                    SLList<label>,
-                    curInterProcBFacesIter(),
-                    curFacesIter
-                )
+                curOldSizes.setSize(interPatchFaces[procI].size());
+                forAll(curOldSizes, interI)
                 {
-                    // add the face
-
-                    // Remember to increment the index by one such that the
-                    // turning index works properly.
-                    if (cellToProc_[owner[curFacesIter()]] == procI)
-                    {
-                        curProcFaceAddressing[nFaces] = curFacesIter() + 1;
-                    }
-                    else
-                    {
-                        // turning face
-                        curProcFaceAddressing[nFaces] = -(curFacesIter() + 1);
-                    }
-
-                    // increment the size
-                    curSize++;
-
-                    nFaces++;
+                    curOldSizes[interI] =
+                        interPatchFaces[procI][interI].size();
                 }
+            }
 
-                nProcPatches++;
+            // Add faces with different owner and neighbour processors
+            forAll (patchFaceCells, facei)
+            {
+                const label ownerProc = cellToProc_[patchFaceCells[facei]];
+                const label nbrProc = cellToProc_[nbrPatchFaceCells[facei]];
+                if (ownerProc != nbrProc)
+                {
+                    // inter - processor patch face found.
+                    addInterProcFace
+                    (
+                        pp.start()+facei,
+                        ownerProc,
+                        nbrProc,
+                        procNbrToInterPatch,
+                        interPatchFaces
+                    );
+                }
+            }
+
+            // 1. Check if any faces added to existing interfaces
+            forAll(oldInterfaceSizes, procI)
+            {
+                const labelList& curOldSizes = oldInterfaceSizes[procI];
+
+                forAll(curOldSizes, interI)
+                {
+                    label oldSz = curOldSizes[interI];
+                    if (interPatchFaces[procI][interI].size() > oldSz)
+                    {
+                        // Added faces to this interface. Add an entry
+                        append(subPatchIDs[procI][interI], patchi);
+                        append(subPatchStarts[procI][interI], oldSz);
+                    }
+                }
+            }
+
+            // 2. Any new interfaces
+            forAll(subPatchIDs, procI)
+            {
+                label nIntfcs = interPatchFaces[procI].size();
+                subPatchIDs[procI].setSize(nIntfcs, labelList(1, patchi));
+                subPatchStarts[procI].setSize(nIntfcs, labelList(1, 0));
             }
         }
     }
 
+
+    // Shrink processor patch face addressing
+    forAll(interPatchFaces, procI)
+    {
+        DynamicList<DynamicList<label> >& curInterPatchFaces =
+            interPatchFaces[procI];
+
+        forAll(curInterPatchFaces, i)
+        {
+            curInterPatchFaces[i].shrink();
+        }
+        curInterPatchFaces.shrink();
+    }
+
+
+    // Sort inter-proc patch by neighbour
+    labelList order;
+    forAll(procNbrToInterPatch, procI)
+    {
+        label nInterfaces = procNbrToInterPatch[procI].size();
+
+        procNeighbourProcessors_[procI].setSize(nInterfaces);
+        procProcessorPatchSize_[procI].setSize(nInterfaces);
+        procProcessorPatchStartIndex_[procI].setSize(nInterfaces);
+        procProcessorPatchSubPatchIDs_[procI].setSize(nInterfaces);
+        procProcessorPatchSubPatchStarts_[procI].setSize(nInterfaces);
+
+        Info<< "Processor " << procI << endl;
+
+        // Get sorted neighbour processors
+        const Map<label>& curNbrToInterPatch = procNbrToInterPatch[procI];
+        labelList nbrs = curNbrToInterPatch.toc();
+        sortedOrder(nbrs, order);
+
+        DynamicList<DynamicList<label> >& curInterPatchFaces =
+            interPatchFaces[procI];
+
+        forAll(order, i)
+        {
+            const label nbrProc = nbrs[i];
+            const label interPatch = curNbrToInterPatch[nbrProc];
+
+            procNeighbourProcessors_[procI][i] = nbrProc;
+            procProcessorPatchSize_[procI][i] = curInterPatchFaces[i].size();
+            procProcessorPatchStartIndex_[procI][i] =
+                procFaceAddressing_[procI].size();
+
+            // Add size as last element to substarts and transfer
+            append
+            (
+                subPatchStarts[procI][interPatch],
+                curInterPatchFaces[interPatch].size()
+            );
+            procProcessorPatchSubPatchIDs_[procI][i].transfer
+            (
+                subPatchIDs[procI][interPatch]
+            );
+            procProcessorPatchSubPatchStarts_[procI][i].transfer
+            (
+                subPatchStarts[procI][interPatch]
+            );
+
+            Info<< "    nbr:" << nbrProc << endl;
+            Info<< "    interpatch:" << interPatch << endl;
+            Info<< "    size:" << procProcessorPatchSize_[procI][i] << endl;
+            Info<< "    start:" << procProcessorPatchStartIndex_[procI][i]
+                << endl;
+            Info<< "    subPatches:" << procProcessorPatchSubPatchIDs_[procI][i]
+                << endl;
+            Info<< "    subStarts:"
+                << procProcessorPatchSubPatchStarts_[procI][i] << endl;
+
+            // And add all the face labels for interPatch
+            DynamicList<label>& interPatchFaces =
+                curInterPatchFaces[interPatch];
+
+            forAll(interPatchFaces, j)
+            {
+                procFaceAddressing_[procI].append(interPatchFaces[j]);
+            }
+            interPatchFaces.clearStorage();
+        }
+        curInterPatchFaces.clearStorage();
+        procFaceAddressing_[procI].shrink();
+    }
+
+
+//XXXXXXX
+// Print a bit
+    forAll(procPatchStartIndex_, procI)
+    {
+        Info<< "Processor:" << procI << endl;
+
+        Info<< "    total faces:" << procFaceAddressing_[procI].size() << endl;
+
+        const labelList& curProcPatchStartIndex = procPatchStartIndex_[procI];
+
+        forAll(curProcPatchStartIndex, patchI)
+        {
+            Info<< "    patch:" << patchI
+                << "\tstart:" << curProcPatchStartIndex[patchI]
+                << "\tsize:" << procPatchSize_[procI][patchI]
+                << endl;
+        }
+    }
+    Info<< endl;
+
+    forAll(procNeighbourProcessors_, procI)
+    {
+        Info<< "Processor " << procI << endl;
+
+        forAll(procNeighbourProcessors_[procI], i)
+        {
+            Info<< "    nbr:" << procNeighbourProcessors_[procI][i] << endl;
+            Info<< "    size:" << procProcessorPatchSize_[procI][i] << endl;
+            Info<< "    start:" << procProcessorPatchStartIndex_[procI][i]
+                << endl;
+        }
+    }
+    Info<< endl;
+
+//    forAll(procFaceAddressing_, procI)
+//    {
+//        Info<< "Processor:" << procI << endl;
+//
+//        Info<< "    faces:" << procFaceAddressing_[procI] << endl;
+//    }
+
+
+
     Info<< "\nDistributing points to processors" << endl;
     // For every processor, loop through the list of faces for the processor.
     // For every face, loop through the list of points and mark the point as

applications/utilities/parallelProcessing/decomposePar/fvFieldDecomposer.C

@@ -144,7 +144,11 @@ Foam::fvFieldDecomposer::fvFieldDecomposer
 {
     forAll(boundaryAddressing_, patchi)
     {
-        if (boundaryAddressing_[patchi] >= 0)
+        if
+        (
+            boundaryAddressing_[patchi] >= 0
+        && !isA<processorLduInterface>(procMesh.boundary()[patchi])
+        )
         {
             patchFieldDecomposerPtrs_[patchi] = new patchFieldDecomposer
             (

applications/utilities/parallelProcessing/decomposePar/fvFieldDecomposerDecomposeFields.C

@@ -26,6 +26,8 @@ License
 #include "fvFieldDecomposer.H"
 #include "processorFvPatchField.H"
 #include "processorFvsPatchField.H"
+#include "processorCyclicFvPatchField.H"
+#include "processorCyclicFvsPatchField.H"
 
 // * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
@@ -44,7 +46,7 @@ Foam::fvFieldDecomposer::decomposeField
 
     forAll(boundaryAddressing_, patchi)
     {
-        if (boundaryAddressing_[patchi] >= 0)
+        if (patchFieldDecomposerPtrs_[patchi])
         {
             patchFields.set
             (
@@ -58,7 +60,24 @@ Foam::fvFieldDecomposer::decomposeField
                 )
             );
         }
-        else
+        else if (isA<processorCyclicFvPatch>(procMesh_.boundary()[patchi]))
+        {
+            patchFields.set
+            (
+                patchi,
+                new processorCyclicFvPatchField<Type>
+                (
+                    procMesh_.boundary()[patchi],
+                    DimensionedField<Type, volMesh>::null(),
+                    Field<Type>
+                    (
+                        field.internalField(),
+                        *processorVolPatchFieldDecomposerPtrs_[patchi]
+                    )
+                )
+            );
+        }
+        else if (isA<processorFvPatch>(procMesh_.boundary()[patchi]))
         {
             patchFields.set
             (
@@ -75,6 +94,11 @@ Foam::fvFieldDecomposer::decomposeField
                 )
             );
         }
+        else
+        {
+            FatalErrorIn("fvFieldDecomposer::decomposeField()")
+                << "Unknown type." << abort(FatalError);
+        }
     }
 
     // Create the field for the processor
@@ -155,7 +179,7 @@ Foam::fvFieldDecomposer::decomposeField
 
     forAll(boundaryAddressing_, patchi)
     {
-        if (boundaryAddressing_[patchi] >= 0)
+        if (patchFieldDecomposerPtrs_[patchi])
         {
             patchFields.set
             (
@@ -169,7 +193,24 @@ Foam::fvFieldDecomposer::decomposeField
                 )
             );
         }
-        else
+        else if (isA<processorCyclicFvPatch>(procMesh_.boundary()[patchi]))
+        {
+            patchFields.set
+            (
+                patchi,
+                new processorCyclicFvsPatchField<Type>
+                (
+                    procMesh_.boundary()[patchi],
+                    DimensionedField<Type, surfaceMesh>::null(),
+                    Field<Type>
+                    (
+                        allFaceField,
+                        *processorSurfacePatchFieldDecomposerPtrs_[patchi]
+                    )
+                )
+            );
+        }
+        else if (isA<processorFvPatch>(procMesh_.boundary()[patchi]))
         {
             patchFields.set
             (
@@ -186,6 +227,11 @@ Foam::fvFieldDecomposer::decomposeField
                 )
             );
         }
+        else
+        {
+            FatalErrorIn("fvFieldDecomposer::decomposeField()")
+                << "Unknown type." << abort(FatalError);
+        }
     }
 
     // Create the field for the processor

applications/utilities/postProcessing/miscellaneous/postChannel/channelIndex.C

@@ -79,7 +79,7 @@ void Foam::channelIndex::walkOppositeFaces
                 isFrontBndFace[faceI-mesh.nInternalFaces()] = true;
             }
         }
-        syncTools::swapBoundaryFaceList(mesh, isFrontBndFace, false);
+        syncTools::swapBoundaryFaceList(mesh, isFrontBndFace);
 
         // Add
         forAll(isFrontBndFace, i)

applications/utilities/postProcessing/patch/patchIntegrate/patchIntegrate.C

@@ -30,7 +30,6 @@ Description
 \*---------------------------------------------------------------------------*/
 
 #include "fvCFD.H"
-#include "cyclicPolyPatch.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 // Main program:
@@ -76,35 +75,12 @@ int main(int argc, char *argv[])
             }
 
             // Give patch area
-            if (isA<cyclicPolyPatch>(mesh.boundaryMesh()[patchI]))
-            {
-                Info<< "    Cyclic patch vector area: " << nl;
-                label nFaces = mesh.boundaryMesh()[patchI].size();
-                vector sum1 = vector::zero;
-                vector sum2 = vector::zero;
-                for (label i=0; i<nFaces/2; i++)
-                {
-                    sum1 += mesh.Sf().boundaryField()[patchI][i];
-                    sum2 += mesh.Sf().boundaryField()[patchI][i+nFaces/2];
-                }
-                reduce(sum1, sumOp<vector>());
-                reduce(sum2, sumOp<vector>());
-                Info<< "    - half 1 = " << sum1 << ", " << mag(sum1) << nl
-                    << "    - half 2 = " << sum2 << ", " << mag(sum2) << nl
-                    << "    - total  = " << (sum1 + sum2) << ", "
-                    << mag(sum1 + sum2) << endl;
-                Info<< "    Cyclic patch area magnitude = "
-                    << gSum(mesh.magSf().boundaryField()[patchI])/2.0 << endl;
-            }
-            else
-            {
-                Info<< "    Area vector of patch "
-                    << patchName << '[' << patchI << ']' << " = "
-                    << gSum(mesh.Sf().boundaryField()[patchI]) << endl;
-                Info<< "    Area magnitude of patch "
-                    << patchName << '[' << patchI << ']' << " = "
-                    << gSum(mesh.magSf().boundaryField()[patchI]) << endl;
-            }
+            Info<< "    Area vector of patch "
+                << patchName << '[' << patchI << ']' << " = "
+                << gSum(mesh.Sf().boundaryField()[patchI]) << endl;
+            Info<< "    Area magnitude of patch "
+                << patchName << '[' << patchI << ']' << " = "
+                << gSum(mesh.magSf().boundaryField()[patchI]) << endl;
 
             // Read field and calc integral
             if (fieldHeader.headerClassName() == volScalarField::typeName)

applications/utilities/preProcessing/foamUpgradeCyclics/Make/files

@@ -0,0 +1,3 @@
+foamUpgradeCyclics.C
+
+EXE = $(FOAM_APPBIN)/foamUpgradeCyclics

applications/utilities/preProcessing/foamUpgradeCyclics/Make/options

@@ -0,0 +1,6 @@
+EXE_INC = \
+    -I$(LIB_SRC)/finiteVolume/lnInclude 
+
+EXE_LIBS = \
+    -lfiniteVolume \
+    -lgenericPatchFields

applications/utilities/preProcessing/foamUpgradeCyclics/foamUpgradeCyclics.C

@@ -0,0 +1,620 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 1991-2009 OpenCFD Ltd.
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software; you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the
+    Free Software Foundation; either version 2 of the License, or (at your
+    option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM; if not, write to the Free Software Foundation,
+    Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+Application
+    foamUpgradeCyclics
+
+Description
+    Tool to upgrade mesh and fields for split cyclics
+
+Usage
+
+    - foamUpgradeCyclics [OPTION]
+
+    @param -test \n
+    Suppress writing the updated files with split cyclics
+
+\*---------------------------------------------------------------------------*/
+
+#include "argList.H"
+#include "Time.H"
+#include "timeSelector.H"
+#include "IOdictionary.H"
+#include "polyMesh.H"
+#include "entry.H"
+#include "IOPtrList.H"
+#include "cyclicPolyPatch.H"
+#include "dictionaryEntry.H"
+#include "IOobjectList.H"
+#include "volFields.H"
+#include "pointFields.H"
+#include "surfaceFields.H"
+#include "string.H"
+
+using namespace Foam;
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+    defineTemplateTypeNameAndDebug(IOPtrList<entry>, 0);
+}
+
+
+// Read boundary file without reading mesh
+void rewriteBoundary
+(
+    const bool isTestRun,
+    const IOobject& io,
+    const fileName& regionPrefix,
+    HashTable<word>& thisNames,
+    HashTable<word>& nbrNames
+)
+{
+    Info<< "Reading boundary from " << io.filePath() << endl;
+
+    // Read PtrList of dictionary.
+    const word oldTypeName = IOPtrList<entry>::typeName;
+    const_cast<word&>(IOPtrList<entry>::typeName) = word::null;
+    IOPtrList<entry> patches(io);
+    const_cast<word&>(IOPtrList<entry>::typeName) = oldTypeName;
+    // Fake type back to what was in field
+    const_cast<word&>(patches.type()) = patches.headerClassName();
+
+
+    // Replace any 'cyclic'
+    label nOldCyclics = 0;
+    forAll(patches, patchI)
+    {
+        const dictionary& patchDict = patches[patchI].dict();
+
+        if (word(patchDict["type"]) == cyclicPolyPatch::typeName)
+        {
+            if (!patchDict.found("neighbourPatch"))
+            {
+                Info<< "Patch " << patches[patchI].keyword()
+                    << " does not have 'neighbourPatch' entry; assuming it"
+                    << " is of the old type." << endl;
+                nOldCyclics++;
+            }
+        }
+    }
+
+    Info<< "Detected " << nOldCyclics << " old cyclics." << nl << endl;
+
+
+    // Save old patches.
+    PtrList<entry> oldPatches(patches);
+
+    // Extend
+    label nOldPatches = patches.size();
+    patches.setSize(nOldPatches+nOldCyclics);
+
+    // Create reordering map
+    labelList oldToNew(patches.size());
+
+
+    // Add new entries
+    label addedPatchI = nOldPatches;
+    label newPatchI = 0;
+    forAll(oldPatches, patchI)
+    {
+        const dictionary& patchDict = oldPatches[patchI].dict();
+
+        if
+        (
+            word(patchDict["type"]) == cyclicPolyPatch::typeName
+        )
+        {
+            const word& name = oldPatches[patchI].keyword();
+
+            if (patchDict.found("neighbourPatch"))
+            {
+                patches.set(patchI, oldPatches.set(patchI, NULL));
+                oldToNew[patchI] = newPatchI++;
+
+                // Check if patches come from automatic conversion
+                word oldName;
+
+                string::size_type i = name.rfind("_half0");
+                if (i != string::npos)
+                {
+                    oldName = name.substr(0, i);
+                    thisNames.insert(oldName, name);
+                    Info<< "Detected converted cyclic patch " << name
+                        << " ; assuming it originates from " << oldName
+                        << endl;
+                }
+                else
+                {
+                    i = name.rfind("_half1");
+                    if (i != string::npos)
+                    {
+                        oldName = name.substr(0, i);
+                        nbrNames.insert(oldName, name);
+                        Info<< "Detected converted cyclic patch " << name
+                            << " ; assuming it originates from " << oldName
+                            << endl;
+                    }
+                }
+            }
+            else
+            {
+                label nFaces = readLabel(patchDict["nFaces"]);
+                label startFace = readLabel(patchDict["startFace"]);
+
+                Info<< "Detected old style " << word(patchDict["type"])
+                    << " patch " << name << " with" << nl
+                    << "    nFaces    : " << nFaces << nl
+                    << "    startFace : " << startFace << endl;
+
+                word thisName = name + "_half0";
+                word nbrName = name + "_half1";
+
+                thisNames.insert(name, thisName);
+                nbrNames.insert(name, nbrName);
+
+                // Save current dictionary
+                const dictionary patchDict(patches[patchI].dict());
+
+                // Change entry on this side
+                patches.set(patchI, oldPatches.set(patchI, NULL));
+                oldToNew[patchI] = newPatchI++;
+                dictionary& thisPatchDict = patches[patchI].dict();
+                thisPatchDict.add("neighbourPatch", nbrName);
+                thisPatchDict.set("nFaces", nFaces/2);
+                patches[patchI].keyword() = thisName;
+
+                // Add entry on other side
+                patches.set
+                (
+                    addedPatchI,
+                    new dictionaryEntry
+                    (
+                        nbrName,
+                        dictionary::null,
+                        patchDict
+                    )
+                );      
+                oldToNew[addedPatchI] = newPatchI++;
+                dictionary& nbrPatchDict = patches[addedPatchI].dict();
+                nbrPatchDict.set("neighbourPatch", thisName);
+                nbrPatchDict.set("nFaces", nFaces/2);
+                nbrPatchDict.set("startFace", startFace+nFaces/2);
+                patches[addedPatchI].keyword() = nbrName;
+
+                Info<< "Replaced with patches" << nl
+                    << patches[patchI].keyword() << " with" << nl
+                    << "    nFaces    : "
+                    << readLabel(thisPatchDict.lookup("nFaces"))
+                    << nl
+                    << "    startFace : "
+                    << readLabel(thisPatchDict.lookup("startFace")) << nl
+                    << patches[addedPatchI].keyword() << " with" << nl
+                    << "    nFaces    : "
+                    << readLabel(nbrPatchDict.lookup("nFaces"))
+                    << nl
+                    << "    startFace : "
+                    << readLabel(nbrPatchDict.lookup("startFace"))
+                    << nl << endl;
+
+                addedPatchI++;
+            }
+        }
+        else
+        {
+            patches.set(patchI, oldPatches.set(patchI, NULL));
+            oldToNew[patchI] = newPatchI++;
+        }
+    }
+
+    patches.reorder(oldToNew);
+
+    if (returnReduce(nOldCyclics, sumOp<label>()) > 0)
+    {
+        if (isTestRun)
+        {
+            //Info<< "-test option: no changes made" << nl << endl;
+        }
+        else
+        {
+            if (mvBak(patches.objectPath(), "old"))
+            {
+                Info<< "Backup to    "
+                    << (patches.objectPath() + ".old") << nl;
+            }
+
+            Info<< "Write  to    "
+                << patches.objectPath() << nl << endl;
+            patches.write();
+        }
+    }
+    else
+    {
+        Info<< "No changes made to boundary file." << nl << endl;
+    }
+}
+
+
+void rewriteField
+(
+    const bool isTestRun,
+    const Time& runTime,
+    const word& fieldName,
+    const HashTable<word>& thisNames,
+    const HashTable<word>& nbrNames
+)
+{
+    // Read dictionary. (disable class type checking so we can load
+    // field)
+    Info<< "Loading field " << fieldName << endl;
+    const word oldTypeName = IOdictionary::typeName;
+    const_cast<word&>(IOdictionary::typeName) = word::null;
+
+    IOdictionary fieldDict
+    (
+        IOobject
+        (
+            fieldName,
+            runTime.timeName(),
+            runTime,
+            IOobject::MUST_READ,
+            IOobject::NO_WRITE,
+            false
+        )
+    );
+    const_cast<word&>(IOdictionary::typeName) = oldTypeName;
+    // Fake type back to what was in field
+    const_cast<word&>(fieldDict.type()) = fieldDict.headerClassName();
+
+
+
+    dictionary& boundaryField = fieldDict.subDict("boundaryField");
+
+    label nChanged = 0;
+
+    forAllConstIter(HashTable<word>, thisNames, iter)
+    {
+        const word& patchName = iter.key();
+        const word& newName = iter();
+
+        Info<< "Looking for entry for patch " << patchName << endl;
+
+        if (boundaryField.found(patchName) && !boundaryField.found(newName))
+        {
+            Info<< "    Changing entry " << patchName << " to " << newName
+                << endl;
+
+            dictionary patchDict(boundaryField.subDict(patchName));
+
+            if (patchDict.found("value"))
+            {
+                IOWarningIn("rewriteField(..)", patchDict)
+                    << "Cyclic patch " << patchName
+                    << " has value entry. Please removed this and rerun."
+                    << endl;
+            }
+
+
+            boundaryField.changeKeyword(patchName, newName);
+            boundaryField.add
+            (
+                nbrNames[patchName],
+                patchDict
+            );
+            Info<< "    Adding entry " << nbrNames[patchName] << endl;
+
+            nChanged++;
+        }
+    }
+
+    //Info<< "New boundaryField:" << boundaryField << endl;
+
+    if (returnReduce(nChanged, sumOp<label>()) > 0)
+    {
+        if (isTestRun)
+        {
+            //Info<< "-test option: no changes made" << endl;
+        }
+        else
+        {
+            if (mvBak(fieldDict.objectPath(), "old"))
+            {
+                Info<< "Backup to    "
+                    << (fieldDict.objectPath() + ".old") << nl;
+            }
+
+            Info<< "Write  to    "
+                << fieldDict.objectPath() << endl;
+            fieldDict.regIOobject::write();
+        }
+    }
+    else
+    {
+        Info<< "No changes made to field " << fieldName << endl;
+    }
+    Info<< endl;
+}
+
+
+void rewriteFields
+(
+    const bool isTestRun,
+    const Time& runTime,
+    const wordList& fieldNames,
+    const HashTable<word>& thisNames,
+    const HashTable<word>& nbrNames
+)
+{
+    forAll(fieldNames, i)
+    {
+        rewriteField
+        (
+            isTestRun,
+            runTime,
+            fieldNames[i],
+            thisNames,
+            nbrNames
+        );
+    }
+}
+
+
+// Main program:
+
+int main(int argc, char *argv[])
+{
+    timeSelector::addOptions();
+
+    argList::addBoolOption("test");
+#   include "addRegionOption.H"
+
+#   include "setRootCase.H"
+#   include "createTime.H"
+
+    instantList timeDirs = timeSelector::select0(runTime, args);
+
+    const bool isTestRun = args.optionFound("test");
+    if (isTestRun)
+    {
+        Info<< "-test option: no changes made" << nl << endl;
+    }
+
+
+    Foam::word regionName = polyMesh::defaultRegion;
+    args.optionReadIfPresent("region", regionName);
+
+    fileName regionPrefix = "";
+    if (regionName != polyMesh::defaultRegion)
+    {
+        regionPrefix = regionName;
+    }
+
+
+    // Per cyclic patch the new name for this side and the other side
+    HashTable<word> thisNames;
+    HashTable<word> nbrNames;
+
+    // Rewrite constant boundary file. Return any patches that have been split.
+    IOobject io
+    (
+        "boundary",
+        runTime.constant(),
+        polyMesh::meshSubDir,
+        runTime,
+        IOobject::MUST_READ,
+        IOobject::NO_WRITE,
+        false
+    );
+
+    if (io.headerOk())
+    {
+        rewriteBoundary
+        (
+            isTestRun,
+            io,
+            regionPrefix,
+            thisNames,
+            nbrNames
+        );
+    }
+
+
+
+    // Convert any fields
+
+    forAll(timeDirs, timeI)
+    {
+        runTime.setTime(timeDirs[timeI], timeI);
+
+        Info<< "Time: " << runTime.timeName() << endl;
+
+        // See if mesh in time directory
+        IOobject io
+        (
+            "boundary",
+            runTime.timeName(),
+            polyMesh::meshSubDir,
+            runTime,
+            IOobject::MUST_READ,
+            IOobject::NO_WRITE,
+            false
+        );
+
+        if (io.headerOk())
+        {
+            rewriteBoundary
+            (
+                isTestRun,
+                io,
+                regionPrefix,
+                thisNames,
+                nbrNames
+            );
+        }
+
+
+        IOobjectList objects(runTime, runTime.timeName());
+
+
+        // volFields
+        // ~~~~~~~~~
+
+        rewriteFields
+        (
+            isTestRun,
+            runTime,
+            objects.names(volScalarField::typeName),
+            thisNames,
+            nbrNames
+        );
+        rewriteFields
+        (
+            isTestRun,
+            runTime,
+            objects.names(volVectorField::typeName),
+            thisNames,
+            nbrNames
+        );
+        rewriteFields
+        (
+            isTestRun,
+            runTime,
+            objects.names(volSphericalTensorField::typeName),
+            thisNames,
+            nbrNames
+        );
+        rewriteFields
+        (
+            isTestRun,
+            runTime,
+            objects.names(volSymmTensorField::typeName),
+            thisNames,
+            nbrNames
+        );
+        rewriteFields
+        (
+            isTestRun,
+            runTime,
+            objects.names(volTensorField::typeName),
+            thisNames,
+            nbrNames
+        );
+
+
+        // pointFields
+        // ~~~~~~~~~~~
+
+        rewriteFields
+        (
+            isTestRun,
+            runTime,
+            objects.names(pointScalarField::typeName),
+            thisNames,
+            nbrNames
+        );
+        rewriteFields
+        (
+            isTestRun,
+            runTime,
+            objects.names(pointVectorField::typeName),
+            thisNames,
+            nbrNames
+        );
+        rewriteFields
+        (
+            isTestRun,
+            runTime,
+            objects.names(pointSphericalTensorField::typeName),
+            thisNames,
+            nbrNames
+        );
+        rewriteFields
+        (
+            isTestRun,
+            runTime,
+            objects.names(pointSymmTensorField::typeName),
+            thisNames,
+            nbrNames
+        );
+        rewriteFields
+        (
+            isTestRun,
+            runTime,
+            objects.names(pointTensorField::typeName),
+            thisNames,
+            nbrNames
+        );
+
+
+        // surfaceFields
+        // ~~~~~~~~~~~
+
+        rewriteFields
+        (
+            isTestRun,
+            runTime,
+            objects.names(surfaceScalarField::typeName),
+            thisNames,
+            nbrNames
+        );
+        rewriteFields
+        (
+            isTestRun,
+            runTime,
+            objects.names(surfaceVectorField::typeName),
+            thisNames,
+            nbrNames
+        );
+        rewriteFields
+        (
+            isTestRun,
+            runTime,
+            objects.names(surfaceSphericalTensorField::typeName),
+            thisNames,
+            nbrNames
+        );
+        rewriteFields
+        (
+            isTestRun,
+            runTime,
+            objects.names(surfaceSymmTensorField::typeName),
+            thisNames,
+            nbrNames
+        );
+        rewriteFields
+        (
+            isTestRun,
+            runTime,
+            objects.names(surfaceTensorField::typeName),
+            thisNames,
+            nbrNames
+        );
+    }
+
+    return 0;
+}
+
+
+// ************************************************************************* //

src/OpenFOAM/Make/files

@@ -260,12 +260,14 @@ GAMGInterfaces = $(GAMG)/interfaces
 $(GAMGInterfaces)/GAMGInterface/GAMGInterface.C
 $(GAMGInterfaces)/GAMGInterface/GAMGInterfaceNew.C
 $(GAMGInterfaces)/processorGAMGInterface/processorGAMGInterface.C
+$(GAMGInterfaces)/processorCyclicGAMGInterface/processorCyclicGAMGInterface.C
 $(GAMGInterfaces)/cyclicGAMGInterface/cyclicGAMGInterface.C
 
 GAMGInterfaceFields = $(GAMG)/interfaceFields
 $(GAMGInterfaceFields)/GAMGInterfaceField/GAMGInterfaceField.C
 $(GAMGInterfaceFields)/GAMGInterfaceField/GAMGInterfaceFieldNew.C
 $(GAMGInterfaceFields)/processorGAMGInterfaceField/processorGAMGInterfaceField.C
+$(GAMGInterfaceFields)/processorCyclicGAMGInterfaceField/processorCyclicGAMGInterfaceField.C
 $(GAMGInterfaceFields)/cyclicGAMGInterfaceField/cyclicGAMGInterfaceField.C
 
 GAMGAgglomerations = $(GAMG)/GAMGAgglomerations
@@ -339,6 +341,7 @@ $(constraintPolyPatches)/empty/emptyPolyPatch.C
 $(constraintPolyPatches)/symmetry/symmetryPolyPatch.C
 $(constraintPolyPatches)/wedge/wedgePolyPatch.C
 $(constraintPolyPatches)/cyclic/cyclicPolyPatch.C
+$(constraintPolyPatches)/processorCyclic/processorCyclicPolyPatch.C
 $(constraintPolyPatches)/processor/processorPolyPatch.C
 
 derivedPolyPatches = $(polyPatches)/derived
@@ -450,6 +453,7 @@ $(constraintPointPatches)/symmetry/symmetryPointPatch.C
 $(constraintPointPatches)/wedge/wedgePointPatch.C
 $(constraintPointPatches)/cyclic/cyclicPointPatch.C
 $(constraintPointPatches)/processor/processorPointPatch.C
+$(constraintPointPatches)/processorCyclic/processorCyclicPointPatch.C
 
 derivedPointPatches = $(pointPatches)/derived
 $(derivedPointPatches)/coupled/coupledFacePointPatch.C
@@ -508,6 +512,7 @@ $(constraintPointPatchFields)/wedge/wedgePointPatchFields.C
 $(constraintPointPatchFields)/cyclic/cyclicPointPatchFields.C
 $(constraintPointPatchFields)/cyclicSlip/cyclicSlipPointPatchFields.C
 $(constraintPointPatchFields)/processor/processorPointPatchFields.C
+$(constraintPointPatchFields)/processorCyclic/processorCyclicPointPatchFields.C
 
 derivedPointPatchFields = $(pointPatchFields)/derived
 $(derivedPointPatchFields)/slip/slipPointPatchFields.C

src/OpenFOAM/algorithms/MeshWave/FaceCellWave.C

@@ -251,12 +251,13 @@ bool Foam::FaceCellWave<Type>::updateFace
 template <class Type>
 void Foam::FaceCellWave<Type>::checkCyclic(const polyPatch& patch) const
 {
-    label cycOffset = patch.size()/2;
+    const cyclicPolyPatch& nbrPatch =
+        refCast<const cyclicPolyPatch>(patch).neighbPatch();
 
-    for (label patchFaceI = 0; patchFaceI < cycOffset; patchFaceI++)
+    forAll(patch, patchFaceI)
     {
         label i1 = patch.start() + patchFaceI;
-        label i2 = i1 + cycOffset;
+        label i2 = nbrPatch.start() + patchFaceI;
 
         if (!allFaceInfo_[i1].sameGeometry(mesh_, allFaceInfo_[i2], geomTol_))
         {
@@ -334,8 +335,7 @@ void Foam::FaceCellWave<Type>::mergeFaceInfo
     const polyPatch& patch,
     const label nFaces,
     const labelList& changedFaces,
-    const List<Type>& changedFacesInfo,
-    const bool
+    const List<Type>& changedFacesInfo
 )
 {
     for (label changedFaceI = 0; changedFaceI < nFaces; changedFaceI++)
@@ -599,8 +599,7 @@ void Foam::FaceCellWave<Type>::handleProcPatches()
                 patch,
                 nReceiveFaces,
                 receiveFaces,
-                receiveFacesInfo,
-                procPatch.parallel()
+                receiveFacesInfo
             );
         }
     }
@@ -619,87 +618,42 @@ void Foam::FaceCellWave<Type>::handleCyclicPatches()
 
         if (isA<cyclicPolyPatch>(patch))
         {
-            label halfSize = patch.size()/2;
+            const cyclicPolyPatch& nbrPatch =
+                refCast<const cyclicPolyPatch>(patch).neighbPatch();
 
             // Allocate buffers
-            label nSendFaces;
-            labelList sendFaces(halfSize);
-            List<Type> sendFacesInfo(halfSize);
-
             label nReceiveFaces;
-            labelList receiveFaces(halfSize);
-            List<Type> receiveFacesInfo(halfSize);
+            labelList receiveFaces(patch.size());
+            List<Type> receiveFacesInfo(patch.size());
 
-            // Half1: Determine which faces changed. Use sendFaces for storage
-            nSendFaces = getChangedPatchFaces
-            (
-                patch,
-                0,
-                halfSize,
-                sendFaces,
-                sendFacesInfo
-            );
-
-            // Half2: Determine which faces changed. Use receiveFaces_  ,,
+            // Determine which faces changed
             nReceiveFaces = getChangedPatchFaces
             (
-                patch,
-                halfSize,
-                halfSize,
+                nbrPatch,
+                0,
+                nbrPatch.size(),
                 receiveFaces,
                 receiveFacesInfo
             );
 
-            //Info<< "Half1:" << endl;
-            //writeFaces(nSendFaces, sendFaces, sendFacesInfo, Info);
-            //Info<< endl;
-            //
-            //Info<< "Half2:" << endl;
-            //writeFaces(nReceiveFaces, receiveFaces, receiveFacesInfo, Info);
-            //Info<< endl;
-
-
-            // Half1: Adapt wallInfo for leaving domain
+            // Adapt wallInfo for leaving domain
             leaveDomain
             (
-                patch,
-                nSendFaces,
-                sendFaces,
-                sendFacesInfo
-            );
-            // Half2: Adapt wallInfo for leaving domain
-            leaveDomain
-            (
-                patch,
+                nbrPatch,
                 nReceiveFaces,
                 receiveFaces,
                 receiveFacesInfo
             );
 
-            // Half1: 'transfer' to other side by offsetting patchFaceI
-            offset(patch, halfSize, nSendFaces, sendFaces);
-
-            // Half2: 'transfer' to other side
-            offset(patch, -halfSize, nReceiveFaces, receiveFaces);
-
-            // Apply rotation for non-parallel planes
             const cyclicPolyPatch& cycPatch =
                 refCast<const cyclicPolyPatch>(patch);
 
             if (!cycPatch.parallel())
             {
-                // sendFaces = received data from half1
+                // received data from other half
                 transform
                 (
                     cycPatch.forwardT(),
-                    nSendFaces,
-                    sendFacesInfo
-                );
-
-                // receiveFaces = received data from half2
-                transform
-                (
-                    cycPatch.reverseT(),
                     nReceiveFaces,
                     receiveFacesInfo
                 );
@@ -707,25 +661,15 @@ void Foam::FaceCellWave<Type>::handleCyclicPatches()
 
             if (debug)
             {
-                Pout<< " Cyclic patch " << patchI << ' ' << patch.name()
-                    << "  Changed on first half : " << nSendFaces
-                    << "  Changed on second half : " << nReceiveFaces
+                Pout<< " Cyclic patch " << patchI << ' ' << cycPatch.name()
+                    << "  Changed : " << nReceiveFaces
                     << endl;
             }
 
-            // Half1: Adapt wallInfo for entering domain
-            enterDomain
-            (
-                patch,
-                nSendFaces,
-                sendFaces,
-                sendFacesInfo
-            );
-
             // Half2: Adapt wallInfo for entering domain
             enterDomain
             (
-                patch,
+                cycPatch,
                 nReceiveFaces,
                 receiveFaces,
                 receiveFacesInfo
@@ -734,25 +678,15 @@ void Foam::FaceCellWave<Type>::handleCyclicPatches()
             // Merge into global storage
             mergeFaceInfo
             (
-                patch,
-                nSendFaces,
-                sendFaces,
-                sendFacesInfo,
-                cycPatch.parallel()
-            );
-            // Merge into global storage
-            mergeFaceInfo
-            (
-                patch,
+                cycPatch,
                 nReceiveFaces,
                 receiveFaces,
-                receiveFacesInfo,
-                cycPatch.parallel()
+                receiveFacesInfo
             );
 
             if (debug)
             {
-                checkCyclic(patch);
+                checkCyclic(cycPatch);
             }
         }
     }

src/OpenFOAM/algorithms/MeshWave/FaceCellWave.H

@@ -192,8 +192,7 @@ class FaceCellWave
                 const polyPatch& patch,
                 const label nFaces,
                 const labelList&,
-                const List<Type>&,
-                const bool isParallel
+                const List<Type>&
             );
 
             //- Extract info for single patch only

src/OpenFOAM/db/IOstreams/Pstreams/UPstream.C

@@ -219,6 +219,30 @@ Foam::List<int> Foam::UPstream::procIDs_(1, 0);
 // Standard transfer message type
 int Foam::UPstream::msgType_(1);
 
+// New message type 
+int Foam::UPstream::freeTag_(msgType()+1);
+
+// Free'd message types
+Foam::LIFOStack<int> Foam::UPstream::freedTags_;
+
+int Foam::UPstream::allocateTag()
+{
+    if (freedTags_.empty())
+    {
+        return freeTag_++;
+    }
+    else
+    {
+        return freedTags_.pop();
+    }
+}
+
+void Foam::UPstream::freeTag(const int tag)
+{
+    freedTags_.push(tag);
+}
+
+
 // Linear communication schedule
 Foam::List<Foam::UPstream::commsStruct> Foam::UPstream::linearCommunication_(0);
 

src/OpenFOAM/db/IOstreams/Pstreams/UPstream.H

@@ -45,6 +45,7 @@ SourceFiles
 #include "HashTable.H"
 #include "string.H"
 #include "NamedEnum.H"
+#include "LIFOStack.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
@@ -190,6 +191,12 @@ private:
         static List<commsStruct> treeCommunication_;
 
 
+        //- Current free tag
+        static int freeTag_;
+
+        //- Freed tags
+        static LIFOStack<int> freedTags_;
+
     // Private Member Functions
 
         //- Set data for parallel running
@@ -339,6 +346,11 @@ public:
         {
             return msgType_;
         }
+        //- Allocate new tag
+        static int allocateTag();
+
+        //- Release allocated tag
+        static void freeTag(const int tag);
 
 
             //- Get the communications type of the stream

src/OpenFOAM/fields/GeometricFields/GeometricField/GeometricBoundaryField.C

@@ -26,6 +26,7 @@ License
 #include "emptyPolyPatch.H"
 #include "commSchedule.H"
 #include "globalMeshData.H"
+#include "cyclicPolyPatch.H"
 
 // * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
@@ -251,6 +252,29 @@ GeometricBoundaryField
     {
         if (bmesh_[patchi].type() != emptyPolyPatch::typeName)
         {
+            if
+            (
+                bmesh_[patchi].type() == cyclicPolyPatch::typeName
+             && !dict.found(bmesh_[patchi].name())
+            )
+            {
+                FatalIOErrorIn
+                (
+                    "GeometricField<Type, PatchField, GeoMesh>::\n"
+                    "GeometricBoundaryField::GeometricBoundaryField\n"
+                    "(\n"
+                    "    const BoundaryMesh&,\n"
+                    "    const DimensionedField<Type, GeoMesh>&,\n"
+                    "    const dictionary&\n"
+                    ")",
+                    dict
+                )   << "Cannot find patchField entry for cyclic "
+                    << bmesh_[patchi].name() << endl
+                    << "Is your field uptodate with split cyclics?" << endl
+                    << "Run foamUpgradeCyclics to convert mesh and fields"
+                    << " to split cyclics." << exit(FatalIOError);
+            }
+
             set
             (
                 patchi,
@@ -322,7 +346,11 @@ evaluate()
         }
 
         // Block for any outstanding requests
-        if (Pstream::defaultCommsType == Pstream::nonBlocking)
+        if
+        (
+            Pstream::parRun()
+         && Pstream::defaultCommsType == Pstream::nonBlocking
+        )
         {
             Pstream::waitRequests();
         }

src/OpenFOAM/fields/pointPatchFields/constraint/cyclic/cyclicPointPatchField.C

@@ -25,6 +25,8 @@ License
 
 #include "cyclicPointPatchField.H"
 #include "Swap.H"
+#include "transformField.H"
+#include "pointFields.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
@@ -127,28 +129,57 @@ void cyclicPointPatchField<Type>::swapAddSeparated
     Field<Type>& pField
 ) const
 {
-    Field<Type> pf(this->patchInternalField(pField));
+    // Get neighbouring pointPatch
+    const cyclicPointPatch& nbrPatch = cyclicPatch_.neighbPatch();
 
-    const edgeList& pairs = cyclicPatch_.transformPairs();
-
-    if (doTransform())
+    if (cyclicPatch_.cyclicPatch().owner())
     {
-        forAll(pairs, pairi)
-        {
-            Type tmp = pf[pairs[pairi][0]];
-            pf[pairs[pairi][0]] = transform(forwardT()[0], pf[pairs[pairi][1]]);
-            pf[pairs[pairi][1]] = transform(reverseT()[0], tmp);
-        }
-    }
-    else
-    {
-        forAll(pairs, pairi)
-        {
-            Swap(pf[pairs[pairi][0]], pf[pairs[pairi][1]]);
-        }
-    }
+        // We inplace modify pField. To prevent the other side (which gets
+        // evaluated at a later date) using already changed values we do
+        // all swaps on the side that gets evaluated first.
 
-    addToInternalField(pField, pf, cyclicPatch_.separatedPoints());
+        // Get neighbouring pointPatchField
+        const GeometricField<Type, pointPatchField, pointMesh>& fld =
+            refCast<const GeometricField<Type, pointPatchField, pointMesh> >
+            (
+                this->dimensionedInternalField()
+            );
+
+        const cyclicPointPatchField<Type>& nbr =
+            refCast<const cyclicPointPatchField<Type> >
+            (
+                fld.boundaryField()[nbrPatch.index()]
+            );
+
+
+        Field<Type> pf(this->patchInternalField(pField));
+        Field<Type> nbrPf(nbr.patchInternalField(pField));
+
+        const edgeList& pairs = cyclicPatch_.transformPairs();
+
+        if (doTransform())
+        {
+            // Transform both sides.
+            forAll(pairs, pairi)
+            {
+                label pointi = pairs[pairi][0];
+                label nbrPointi = pairs[pairi][1];
+
+                Type tmp = pf[pointi];
+                pf[pointi] = transform(forwardT()[0], nbrPf[nbrPointi]);
+                nbrPf[nbrPointi] = transform(reverseT()[0], tmp);
+            }
+        }
+        else
+        {
+            forAll(pairs, pairi)
+            {
+                Swap(pf[pairs[pairi][0]], nbrPf[pairs[pairi][1]]);
+            }
+        }
+        addToInternalField(pField, pf);
+        nbr.addToInternalField(pField, nbrPf);
+    }
 }
 
 

src/OpenFOAM/fields/pointPatchFields/constraint/processor/processorPointPatchField.C

@@ -24,7 +24,7 @@ License
 \*---------------------------------------------------------------------------*/
 
 #include "processorPointPatchField.H"
-#include "transformField.H"
+//#include "transformField.H"
 #include "processorPolyPatch.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
@@ -102,26 +102,27 @@ void processorPointPatchField<Type>::initSwapAddSeparated
 )
 const
 {
-    if (Pstream::parRun())
-    {
-        // Get internal field into correct order for opposite side
-        Field<Type> pf
-        (
-            this->patchInternalField
-            (
-                pField,
-                procPatch_.reverseMeshPoints()
-            )
-        );
-
-        OPstream::write
-        (
-            commsType,
-            procPatch_.neighbProcNo(),
-            reinterpret_cast<const char*>(pf.begin()),
-            pf.byteSize()
-        );
-    }
+//    if (Pstream::parRun())
+//    {
+//        // Get internal field into correct order for opposite side
+//        Field<Type> pf
+//        (
+//            this->patchInternalField
+//            (
+//                pField,
+//                procPatch_.reverseMeshPoints()
+//            )
+//        );
+//
+//        OPstream::write
+//        (
+//            commsType,
+//            procPatch_.neighbProcNo(),
+//            reinterpret_cast<const char*>(pf.begin()),
+//            pf.byteSize(),
+//            procPatch_.tag()
+//        );
+//    }
 }
 
 
@@ -132,44 +133,29 @@ void processorPointPatchField<Type>::swapAddSeparated
     Field<Type>& pField
 ) const
 {
-    if (Pstream::parRun())
-    {
-        Field<Type> pnf(this->size());
-
-        IPstream::read
-        (
-            commsType,
-            procPatch_.neighbProcNo(),
-            reinterpret_cast<char*>(pnf.begin()),
-            pnf.byteSize()
-        );
-
-        if (doTransform())
-        {
-            const processorPolyPatch& ppp = procPatch_.procPolyPatch();
-            const tensorField& forwardT = ppp.forwardT();
-
-            if (forwardT.size() == 1)
-            {
-                transform(pnf, forwardT[0], pnf);
-            }
-            else
-            {
-                const labelListList& pointFaces = ppp.pointFaces();
-
-                forAll(pointFaces, pfi)
-                {
-                    pnf[pfi] = transform
-                    (
-                        forwardT[pointFaces[pfi][0]],
-                        pnf[pfi]
-                    );
-                }
-            }
-        }
-
-        addToInternalField(pField, pnf, procPatch_.separatedPoints());
-    }
+//    if (Pstream::parRun())
+//    {
+//        Field<Type> pnf(this->size());
+//
+//        IPstream::read
+//        (
+//            commsType,
+//            procPatch_.neighbProcNo(),
+//            reinterpret_cast<char*>(pnf.begin()),
+//            pnf.byteSize(),
+//            procPatch_.tag()
+//        );
+//
+//        if (doTransform())
+//        {
+//            const processorPolyPatch& ppp = procPatch_.procPolyPatch();
+//            const tensor& forwardT = ppp.forwardT();
+//
+//            transform(pnf, forwardT, pnf);
+//        }
+//
+//        addToInternalField(pField, pnf, procPatch_.separatedPoints());
+//    }
 }
 
 

src/OpenFOAM/fields/pointPatchFields/constraint/processor/processorPointPatchField.H

@@ -147,7 +147,7 @@ public:
                 }
             }
 
-            //- Does the patch field perform the transfromation
+            //- Does the patch field perform the transformation
             virtual bool doTransform() const
             {
                 return

src/OpenFOAM/fields/pointPatchFields/constraint/processorCyclic/processorCyclicPointPatchField.C

@@ -0,0 +1,168 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 1991-2009 OpenCFD Ltd.
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software; you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the
+    Free Software Foundation; either version 2 of the License, or (at your
+    option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM; if not, write to the Free Software Foundation,
+    Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+\*---------------------------------------------------------------------------*/
+
+#include "processorCyclicPointPatchField.H"
+#include "transformField.H"
+#include "processorPolyPatch.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+
+// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
+
+template<class Type>
+processorCyclicPointPatchField<Type>::processorCyclicPointPatchField
+(
+    const pointPatch& p,
+    const DimensionedField<Type, pointMesh>& iF
+)
+:
+    coupledPointPatchField<Type>(p, iF),
+    procPatch_(refCast<const processorCyclicPointPatch>(p))
+{}
+
+
+template<class Type>
+processorCyclicPointPatchField<Type>::processorCyclicPointPatchField
+(
+    const pointPatch& p,
+    const DimensionedField<Type, pointMesh>& iF,
+    const dictionary& dict
+)
+:
+    coupledPointPatchField<Type>(p, iF, dict),
+    procPatch_(refCast<const processorCyclicPointPatch>(p))
+{}
+
+
+template<class Type>
+processorCyclicPointPatchField<Type>::processorCyclicPointPatchField
+(
+    const processorCyclicPointPatchField<Type>& ptf,
+    const pointPatch& p,
+    const DimensionedField<Type, pointMesh>& iF,
+    const pointPatchFieldMapper& mapper
+)
+:
+    coupledPointPatchField<Type>(ptf, p, iF, mapper),
+    procPatch_(refCast<const processorCyclicPointPatch>(ptf.patch()))
+{}
+
+
+template<class Type>
+processorCyclicPointPatchField<Type>::processorCyclicPointPatchField
+(
+    const processorCyclicPointPatchField<Type>& ptf,
+    const DimensionedField<Type, pointMesh>& iF
+)
+:
+    coupledPointPatchField<Type>(ptf, iF),
+    procPatch_(refCast<const processorCyclicPointPatch>(ptf.patch()))
+{}
+
+
+// * * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * //
+
+template<class Type>
+processorCyclicPointPatchField<Type>::~processorCyclicPointPatchField()
+{}
+
+
+// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
+
+template<class Type>
+void processorCyclicPointPatchField<Type>::initSwapAddSeparated
+(
+    const Pstream::commsTypes commsType,
+    Field<Type>& pField
+) const
+{
+    if (Pstream::parRun())
+    {
+        // Get internal field into correct order for opposite side
+        Field<Type> pf
+        (
+            this->patchInternalField
+            (
+                pField,
+                procPatch_.reverseMeshPoints()
+            )
+        );
+
+        OPstream::write
+        (
+            commsType,
+            procPatch_.neighbProcNo(),
+            reinterpret_cast<const char*>(pf.begin()),
+            pf.byteSize(),
+            procPatch_.tag()
+        );
+    }
+}
+
+
+template<class Type>
+void processorCyclicPointPatchField<Type>::swapAddSeparated
+(
+    const Pstream::commsTypes commsType,
+    Field<Type>& pField
+) const
+{
+    if (Pstream::parRun())
+    {
+        Field<Type> pnf(this->size());
+
+        IPstream::read
+        (
+            commsType,
+            procPatch_.neighbProcNo(),
+            reinterpret_cast<char*>(pnf.begin()),
+            pnf.byteSize(),
+            procPatch_.tag()
+        );
+
+        if (doTransform())
+        {
+            const processorCyclicPolyPatch& ppp =
+                procPatch_.procCyclicPolyPatch();
+            const tensor& forwardT = ppp.forwardT()[0];
+
+            transform(pnf, forwardT, pnf);
+        }
+
+        // All points are separated
+        addToInternalField(pField, pnf);
+    }
+}
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+} // End namespace Foam
+
+// ************************************************************************* //

src/OpenFOAM/fields/pointPatchFields/constraint/processorCyclic/processorCyclicPointPatchField.H

@@ -0,0 +1,202 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 1991-2009 OpenCFD Ltd.
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software; you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the
+    Free Software Foundation; either version 2 of the License, or (at your
+    option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM; if not, write to the Free Software Foundation,
+    Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+Class
+    Foam::processorCyclicPointPatchField
+
+Description
+    Foam::processorCyclicPointPatchField
+
+SourceFiles
+    processorCyclicPointPatchField.C
+
+\*---------------------------------------------------------------------------*/
+
+#ifndef processorCyclicPointPatchField_H
+#define processorCyclicPointPatchField_H
+
+#include "coupledPointPatchField.H"
+#include "processorCyclicPointPatch.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+
+/*---------------------------------------------------------------------------*\
+                 Class processorCyclicPointPatchField Declaration
+\*---------------------------------------------------------------------------*/
+
+template<class Type>
+class processorCyclicPointPatchField
+:
+    public coupledPointPatchField<Type>
+{
+    // Private data
+
+        //- Local reference to processor patch
+        const processorCyclicPointPatch& procPatch_;
+
+
+public:
+
+    //- Runtime type information
+    TypeName(processorCyclicPointPatch::typeName_());
+
+
+    // Constructors
+
+        //- Construct from patch and internal field
+        processorCyclicPointPatchField
+        (
+            const pointPatch&,
+            const DimensionedField<Type, pointMesh>&
+        );
+
+        //- Construct from patch, internal field and dictionary
+        processorCyclicPointPatchField
+        (
+            const pointPatch&,
+            const DimensionedField<Type, pointMesh>&,
+            const dictionary&
+        );
+
+        //- Construct by mapping given patchField<Type> onto a new patch
+        processorCyclicPointPatchField
+        (
+            const processorCyclicPointPatchField<Type>&,
+            const pointPatch&,
+            const DimensionedField<Type, pointMesh>&,
+            const pointPatchFieldMapper&
+        );
+
+        //- Construct and return a clone
+        virtual autoPtr<pointPatchField<Type> > clone() const
+        {
+            return autoPtr<pointPatchField<Type> >
+            (
+                new processorCyclicPointPatchField<Type>
+                (
+                    *this
+                )
+            );
+        }
+
+        //- Construct as copy setting internal field reference
+        processorCyclicPointPatchField
+        (
+            const processorCyclicPointPatchField<Type>&,
+            const DimensionedField<Type, pointMesh>&
+        );
+
+        //- Construct and return a clone setting internal field reference
+        virtual autoPtr<pointPatchField<Type> > clone
+        (
+            const DimensionedField<Type, pointMesh>& iF
+        ) const
+        {
+            return autoPtr<pointPatchField<Type> >
+            (
+                new processorCyclicPointPatchField<Type>
+                (
+                    *this,
+                    iF
+                )
+            );
+        }
+
+
+    // Destructor
+
+        ~processorCyclicPointPatchField();
+
+
+    // Member functions
+
+        // Access
+
+            //- Return true if running parallel
+            virtual bool coupled() const
+            {
+                if (Pstream::parRun())
+                {
+                    return true;
+                }
+                else
+                {
+                    return false;
+                }
+            }
+
+            //- Does the patch field perform the transfromation
+            virtual bool doTransform() const
+            {
+                return
+                   !(
+                        pTraits<Type>::rank == 0
+                     || procPatch_.procPolyPatch().parallel()
+                    );
+            }
+
+
+        // Evaluation functions
+
+            //- Evaluate the patch field
+            virtual void evaluate
+            (
+                const Pstream::commsTypes commsType=Pstream::blocking
+            )
+            {}
+
+            //- Initialise swap of non-collocated patch point values
+            virtual void initSwapAddSeparated
+            (
+                const Pstream::commsTypes commsType,
+                Field<Type>&
+            ) const;
+
+            //- Complete swap of patch point values and add to local values
+            virtual void swapAddSeparated
+            (
+                const Pstream::commsTypes commsType,
+                Field<Type>&
+            ) const;
+};
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+} // End namespace Foam
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#ifdef NoRepository
+#    include "processorCyclicPointPatchField.C"
+#endif
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#endif
+
+// ************************************************************************* //

src/OpenFOAM/fields/pointPatchFields/constraint/processorCyclic/processorCyclicPointPatchFields.C

@@ -0,0 +1,44 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 1991-2009 OpenCFD Ltd.
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software; you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the
+    Free Software Foundation; either version 2 of the License, or (at your
+    option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM; if not, write to the Free Software Foundation,
+    Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+\*---------------------------------------------------------------------------*/
+
+#include "processorCyclicPointPatchFields.H"
+#include "pointPatchFields.H"
+#include "addToRunTimeSelectionTable.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+
+// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
+
+makePointPatchFields(processorCyclic);
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+} // End namespace Foam
+
+// ************************************************************************* //

src/OpenFOAM/fields/pointPatchFields/constraint/processorCyclic/processorCyclicPointPatchFields.H

@@ -0,0 +1,50 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 1991-2009 OpenCFD Ltd.
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software; you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the
+    Free Software Foundation; either version 2 of the License, or (at your
+    option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM; if not, write to the Free Software Foundation,
+    Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+\*---------------------------------------------------------------------------*/
+
+#ifndef processorCyclicPointPatchFields_H
+#define processorCyclicPointPatchFields_H
+
+#include "processorCyclicPointPatchField.H"
+#include "fieldTypes.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+makePointPatchFieldTypedefs(processorCyclic);
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+} // End namespace Foam
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#endif
+
+// ************************************************************************* //

src/OpenFOAM/fields/pointPatchFields/pointPatchField/pointPatchField.C

@@ -141,15 +141,7 @@ tmp<Field<Type1> > pointPatchField<Type>::patchInternalField
             << abort(FatalError);
     }
 
-    tmp<Field<Type1> > tvalues(new Field<Type1>(meshPoints.size()));
-    Field<Type1>& values = tvalues();
-
-    forAll(meshPoints, pointI)
-    {
-        values[pointI] = iF[meshPoints[pointI]];
-    }
-
-    return tvalues;
+    return tmp<Field<Type1> >(new Field<Type1>(iF, meshPoints));
 }
 
 

src/OpenFOAM/global/argList/parRun.H

@@ -32,8 +32,7 @@ Description
 #ifndef parRun_H
 #define parRun_H
 
-#include "OPstream.H"
-#include "IPstream.H"
+#include "Pstream.H"
 #include "IOstreams.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

src/OpenFOAM/matrices/LUscalarMatrix/LUscalarMatrix.C

@@ -27,6 +27,7 @@ License
 #include "lduMatrix.H"
 #include "procLduMatrix.H"
 #include "procLduInterface.H"
+#include "cyclicLduInterface.H"
 
 // * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
@@ -160,19 +161,27 @@ void Foam::LUscalarMatrix::convert
         {
             const lduInterface& interface = interfaces[inti].interface();
 
-            const label* __restrict__ ulPtr = interface.faceCells().begin();
-            const scalar* __restrict__ upperLowerPtr =
-                interfaceCoeffs[inti].begin();
+            // Assume any interfaces are cyclic ones
 
-            register label inFaces = interface.faceCells().size()/2;
+            const label* __restrict__ lPtr = interface.faceCells().begin();
+
+            const cyclicLduInterface& cycInterface =
+                refCast<const cyclicLduInterface>(interface);
+            label nbrInt = cycInterface.neighbPatchID();
+            const label* __restrict__ uPtr =
+                interfaces[nbrInt].interface().faceCells().begin();
+
+            const scalar* __restrict__ nbrUpperLowerPtr =
+                interfaceCoeffs[nbrInt].begin();
+
+            register label inFaces = interface.faceCells().size();
 
             for (register label face=0; face<inFaces; face++)
             {
-                label uCell = ulPtr[face];
-                label lCell = ulPtr[face + inFaces];
+                label uCell = lPtr[face];
+                label lCell = uPtr[face];
 
-                operator[](uCell)[lCell] -= upperLowerPtr[face + inFaces];
-                operator[](lCell)[uCell] -= upperLowerPtr[face];
+                operator[](uCell)[lCell] -= nbrUpperLowerPtr[face];
             }
         }
     }

src/OpenFOAM/matrices/lduMatrix/lduAddressing/lduInterface/cyclicLduInterface.H

@@ -65,6 +65,14 @@ public:
 
         // Access
 
+            //- Return neighbour
+            virtual label neighbPatchID() const = 0;
+
+            virtual bool owner() const = 0;
+
+            //- Return processor number
+            virtual const cyclicLduInterface& neighbPatch() const = 0;
+
             //- Return face transformation tensor
             virtual const tensorField& forwardT() const = 0;
 

src/OpenFOAM/matrices/lduMatrix/lduAddressing/lduInterface/lduInterface.H

@@ -96,21 +96,6 @@ public:
                 const unallocLabelList& internalData
             ) const = 0;
 
-            //- Initialise interface data transfer
-            virtual void initTransfer
-            (
-                const Pstream::commsTypes commsType,
-                const unallocLabelList& interfaceData
-            ) const
-            {}
-
-            //- Transfer and return neighbour field
-            virtual tmp<labelField> transfer
-            (
-                const Pstream::commsTypes commsType,
-                const unallocLabelList& interfaceData
-            ) const = 0;
-
             //- Initialise transfer of internal field adjacent to the interface
             virtual void initInternalFieldTransfer
             (

src/OpenFOAM/matrices/lduMatrix/lduAddressing/lduInterface/processorLduInterface.H

@@ -93,6 +93,8 @@ public:
             //- Return face transformation tensor
             virtual const tensorField& forwardT() const = 0;
 
+            //- Return message tag used for sending
+            virtual int tag() const = 0;
 
         // Transfer functions
 

src/OpenFOAM/matrices/lduMatrix/lduAddressing/lduInterface/processorLduInterfaceTemplates.C

@@ -43,7 +43,8 @@ void Foam::processorLduInterface::send
             commsType,
             neighbProcNo(),
             reinterpret_cast<const char*>(f.begin()),
-            f.byteSize()
+            f.byteSize(),
+            tag()
         );
     }
     else if (commsType == Pstream::nonBlocking)
@@ -55,7 +56,8 @@ void Foam::processorLduInterface::send
             commsType,
             neighbProcNo(),
             receiveBuf_.begin(),
-            receiveBuf_.size()
+            receiveBuf_.size(),
+            tag()
         );
 
         resizeBuf(sendBuf_, f.byteSize());
@@ -66,7 +68,8 @@ void Foam::processorLduInterface::send
             commsType,
             neighbProcNo(),
             sendBuf_.begin(),
-            f.byteSize()
+            f.byteSize(),
+            tag()
         );
     }
     else
@@ -92,7 +95,8 @@ void Foam::processorLduInterface::receive
             commsType,
             neighbProcNo(),
             reinterpret_cast<char*>(f.begin()),
-            f.byteSize()
+            f.byteSize(),
+            tag()
         );
     }
     else if (commsType == Pstream::nonBlocking)
@@ -155,7 +159,8 @@ void Foam::processorLduInterface::compressedSend
                 commsType,
                 neighbProcNo(),
                 sendBuf_.begin(),
-                nBytes
+                nBytes,
+                tag()
             );
         }
         else if (commsType == Pstream::nonBlocking)
@@ -167,7 +172,8 @@ void Foam::processorLduInterface::compressedSend
                 commsType,
                 neighbProcNo(),
                 receiveBuf_.begin(),
-                receiveBuf_.size()
+                receiveBuf_.size(),
+                tag()
             );
 
             OPstream::write
@@ -175,7 +181,8 @@ void Foam::processorLduInterface::compressedSend
                 commsType,
                 neighbProcNo(),
                 sendBuf_.begin(),
-                nBytes
+                nBytes,
+                tag()
             );
         }
         else
@@ -215,7 +222,8 @@ void Foam::processorLduInterface::compressedReceive
                 commsType,
                 neighbProcNo(),
                 receiveBuf_.begin(),
-                nBytes
+                nBytes,
+                tag()
             );
         }
         else if (commsType != Pstream::nonBlocking)

src/OpenFOAM/matrices/lduMatrix/lduAddressing/lduInterfaceFields/cyclicLduInterfaceField/cyclicLduInterfaceField.C

@@ -47,19 +47,10 @@ void Foam::cyclicLduInterfaceField::transformCoupleField
 {
     if (doTransform())
     {
-        label sizeby2 = pnf.size()/2;
-
         scalar forwardScale =
             pow(diag(forwardT()[0]).component(cmpt), rank());
 
-        scalar reverseScale =
-            pow(diag(reverseT()[0]).component(cmpt), rank());
-
-        for (label facei=0; facei<sizeby2; facei++)
-        {
-            pnf[facei] *= forwardScale;
-            pnf[facei + sizeby2] *= reverseScale;
-        }
+        pnf *= forwardScale;
     }
 }
 

src/OpenFOAM/matrices/lduMatrix/lduMatrix/lduMatrixUpdateMatrixInterfaces.C

@@ -111,10 +111,13 @@ void Foam::lduMatrix::updateMatrixInterfaces
     )
     {
         // Block until all sends/receives have been finished
-        if (Pstream::defaultCommsType == Pstream::nonBlocking)
+        if
+        (
+            Pstream::parRun()
+         && Pstream::defaultCommsType == Pstream::nonBlocking
+        )
         {
-            IPstream::waitRequests();
-            OPstream::waitRequests();
+            UPstream::waitRequests();
         }
 
         forAll(interfaces, interfaceI)

src/OpenFOAM/matrices/lduMatrix/solvers/GAMG/GAMGAgglomerations/GAMGAgglomeration/GAMGAgglomerateLduAddressing.C

@@ -229,12 +229,17 @@ void Foam::GAMGAgglomeration::agglomerateLduAddressing
         {
             fineInterfaces[inti].initInternalFieldTransfer
             (
-                Pstream::blocking,
+                Pstream::nonBlocking,
                 restrictMap
             );
         }
     }
 
+    if (Pstream::parRun())
+    {
+        Pstream::waitRequests();
+    }
+
     // Add the coarse level
     forAll(fineInterfaces, inti)
     {
@@ -245,11 +250,13 @@ void Foam::GAMGAgglomeration::agglomerateLduAddressing
                 inti,
                 GAMGInterface::New
                 (
+                    inti,
+                    coarseInterfaces,
                     fineInterfaces[inti],
                     fineInterfaces[inti].interfaceInternalField(restrictMap),
                     fineInterfaces[inti].internalFieldTransfer
                     (
-                        Pstream::blocking,
+                        Pstream::nonBlocking,
                         restrictMap
                     )
                 ).ptr()

src/OpenFOAM/matrices/lduMatrix/solvers/GAMG/interfaceFields/cyclicGAMGInterfaceField/cyclicGAMGInterfaceField.C

@@ -80,20 +80,16 @@ void Foam::cyclicGAMGInterfaceField::updateInterfaceMatrix
     const Pstream::commsTypes
 ) const
 {
-    scalarField pnf(size());
-
-    label sizeby2 = size()/2;
-
-    const unallocLabelList& faceCells = cyclicInterface_.faceCells();
-
-    for (label facei=0; facei<sizeby2; facei++)
-    {
-        pnf[facei] = psiInternal[faceCells[facei + sizeby2]];
-        pnf[facei + sizeby2] = psiInternal[faceCells[facei]];
-    }
+    // Get neighbouring field
+    scalarField pnf
+    (
+        cyclicInterface_.neighbPatch().interfaceInternalField(psiInternal)
+    );
 
     transformCoupleField(pnf, cmpt);
 
+    const unallocLabelList& faceCells = cyclicInterface_.faceCells();
+
     forAll(faceCells, elemI)
     {
         result[faceCells[elemI]] -= coeffs[elemI]*pnf[elemI];

src/OpenFOAM/matrices/lduMatrix/solvers/GAMG/interfaceFields/processorCyclicGAMGInterfaceField/processorCyclicGAMGInterfaceField.C

@@ -0,0 +1,108 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 1991-2009 OpenCFD Ltd.
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software; you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the
+    Free Software Foundation; either version 2 of the License, or (at your
+    option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM; if not, write to the Free Software Foundation,
+    Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+\*---------------------------------------------------------------------------*/
+
+#include "processorCyclicGAMGInterfaceField.H"
+#include "addToRunTimeSelectionTable.H"
+#include "lduMatrix.H"
+
+// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
+
+namespace Foam
+{
+    defineTypeNameAndDebug(processorCyclicGAMGInterfaceField, 0);
+    addToRunTimeSelectionTable
+    (
+        GAMGInterfaceField,
+        processorCyclicGAMGInterfaceField,
+        lduInterface
+    );
+}
+
+
+// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
+
+Foam::processorCyclicGAMGInterfaceField::processorCyclicGAMGInterfaceField
+(
+    const GAMGInterface& GAMGCp,
+    const lduInterfaceField& fineInterface
+)
+:
+    processorGAMGInterfaceField(GAMGCp, fineInterface)
+{}
+
+
+// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
+
+Foam::processorCyclicGAMGInterfaceField::~processorCyclicGAMGInterfaceField()
+{}
+
+
+// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
+
+//void Foam::processorCyclicGAMGInterfaceField::initInterfaceMatrixUpdate
+//(
+//    const scalarField& psiInternal,
+//    scalarField&,
+//    const lduMatrix&,
+//    const scalarField&,
+//    const direction,
+//    const Pstream::commsTypes commsType
+//) const
+//{
+//    procInterface_.compressedSend
+//    (
+//        commsType,
+//        procInterface_.interfaceInternalField(psiInternal)()
+//    );
+//}
+//
+//
+//void Foam::processorCyclicGAMGInterfaceField::updateInterfaceMatrix
+//(
+//    const scalarField&,
+//    scalarField& result,
+//    const lduMatrix&,
+//    const scalarField& coeffs,
+//    const direction cmpt,
+//    const Pstream::commsTypes commsType
+//) const
+//{
+//    scalarField pnf
+//    (
+//        procInterface_.compressedReceive<scalar>(commsType, coeffs.size())
+//    );
+//    transformCoupleField(pnf, cmpt);
+//
+//    const unallocLabelList& faceCells = procInterface_.faceCells();
+//
+//    forAll(faceCells, elemI)
+//    {
+//        result[faceCells[elemI]] -= coeffs[elemI]*pnf[elemI];
+//    }
+//}
+
+
+// ************************************************************************* //

src/OpenFOAM/matrices/lduMatrix/solvers/GAMG/interfaceFields/processorCyclicGAMGInterfaceField/processorCyclicGAMGInterfaceField.H

@@ -0,0 +1,174 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 1991-2009 OpenCFD Ltd.
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software; you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the
+    Free Software Foundation; either version 2 of the License, or (at your
+    option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM; if not, write to the Free Software Foundation,
+    Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+Class
+    Foam::processorCyclicGAMGInterfaceField
+
+Description
+    GAMG agglomerated processor interface field.
+
+SourceFiles
+    processorCyclicGAMGInterfaceField.C
+
+\*---------------------------------------------------------------------------*/
+
+#ifndef processorCyclicGAMGInterfaceField_H
+#define processorCyclicGAMGInterfaceField_H
+
+#include "processorGAMGInterfaceField.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+
+/*---------------------------------------------------------------------------*\
+                  Class processorCyclicGAMGInterfaceField Declaration
+\*---------------------------------------------------------------------------*/
+
+class processorCyclicGAMGInterfaceField
+:
+    public processorGAMGInterfaceField
+{
+    // Private data
+
+//        //- Local reference cast into the processor interface
+//        const processorCyclicGAMGInterface& procInterface_;
+//
+//        //- Is the transform required
+//        bool doTransform_;
+//
+//        //- Rank of component for transformation
+//        int rank_;
+//
+
+    // Private Member Functions
+
+        //- Disallow default bitwise copy construct
+        processorCyclicGAMGInterfaceField(const processorCyclicGAMGInterfaceField&);
+
+        //- Disallow default bitwise assignment
+        void operator=(const processorCyclicGAMGInterfaceField&);
+
+
+public:
+
+    //- Runtime type information
+    TypeName("processorCyclic");
+
+
+    // Constructors
+
+        //- Construct from GAMG interface and fine level interface field
+        processorCyclicGAMGInterfaceField
+        (
+            const GAMGInterface& GAMGCp,
+            const lduInterfaceField& fineInterface
+        );
+
+
+    // Destructor
+
+        virtual ~processorCyclicGAMGInterfaceField();
+
+
+    // Member Functions
+
+//        // Access
+//
+//            //- Return size
+//            label size() const
+//            {
+//                return procInterface_.size();
+//            }
+//
+//
+//        // Interface matrix update
+//
+//            //- Initialise neighbour matrix update
+//            virtual void initInterfaceMatrixUpdate
+//            (
+//                const scalarField& psiInternal,
+//                scalarField& result,
+//                const lduMatrix& m,
+//                const scalarField& coeffs,
+//                const direction cmpt,
+//                const Pstream::commsTypes commsType
+//            ) const;
+//
+//            //- Update result field based on interface functionality
+//            virtual void updateInterfaceMatrix
+//            (
+//                const scalarField& psiInternal,
+//                scalarField& result,
+//                const lduMatrix&,
+//                const scalarField& coeffs,
+//                const direction cmpt,
+//                const Pstream::commsTypes commsType
+//            ) const;
+//
+//
+//        //- Processor interface functions
+//
+//            //- Return processor number
+//            virtual int myProcNo() const
+//            {
+//                return procInterface_.myProcNo();
+//            }
+//
+//            //- Return neigbour processor number
+//            virtual int neighbProcNo() const
+//            {
+//                return procInterface_.neighbProcNo();
+//            }
+//
+//            //- Does the interface field perform the transfromation
+//            virtual bool doTransform() const
+//            {
+//                return doTransform_;
+//            }
+//
+//            //- Return face transformation tensor
+//            virtual const tensorField& forwardT() const
+//            {
+//                return procInterface_.forwardT();
+//            }
+//
+//            //- Return rank of component for transform
+//            virtual int rank() const
+//            {
+//                return rank_;
+//            }
+};
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+} // End namespace Foam
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#endif
+
+// ************************************************************************* //

src/OpenFOAM/matrices/lduMatrix/solvers/GAMG/interfaces/GAMGInterface/GAMGInterface.H

@@ -36,8 +36,8 @@ SourceFiles
 #ifndef GAMGInterface_H
 #define GAMGInterface_H
 
-#include "lduInterface.H"
 #include "autoPtr.H"
+#include "lduInterfacePtrsList.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
@@ -57,6 +57,12 @@ protected:
 
     // Protected data
 
+        //- My index in coarseInterfaces
+        const label index_;
+
+        //- All interfaces
+        const lduInterfacePtrsList& coarseInterfaces_;
+
         //- Face-cell addressing
         labelField faceCells_;
 
@@ -89,11 +95,15 @@ public:
             GAMGInterface,
             lduInterface,
             (
+                const label index,
+                const lduInterfacePtrsList& coarseInterfaces,
                 const lduInterface& fineInterface,
                 const labelField& localRestrictAddressing,
                 const labelField& neighbourRestrictAddressing
             ),
             (
+                index,
+                coarseInterfaces,
                 fineInterface,
                 localRestrictAddressing,
                 neighbourRestrictAddressing
@@ -107,6 +117,8 @@ public:
         //  the fine interface
         static autoPtr<GAMGInterface> New
         (
+            const label index,
+            const lduInterfacePtrsList& coarseInterfaces,
             const lduInterface& fineInterface,
             const labelField& localRestrictAddressing,
             const labelField& neighbourRestrictAddressing
@@ -119,10 +131,15 @@ public:
         //  local and neighbour restrict addressing
         GAMGInterface
         (
+            const label index,
+            const lduInterfacePtrsList& coarseInterfaces,
             const lduInterface&,
             const labelField&,
             const labelField&
         )
+        :
+            index_(index),
+            coarseInterfaces_(coarseInterfaces)
         {}
 
 
@@ -136,6 +153,16 @@ public:
                 return faceCells_.size();
             }
 
+            virtual label index() const
+            {
+                return index_;
+            }
+
+            virtual const lduInterfacePtrsList& coarseInterfaces() const
+            {
+                return coarseInterfaces_;
+            }
+
             //- Return faceCell addressing
             virtual const unallocLabelList& faceCells() const
             {

src/OpenFOAM/matrices/lduMatrix/solvers/GAMG/interfaces/GAMGInterface/GAMGInterfaceNew.C

@@ -31,6 +31,8 @@ License
 
 Foam::autoPtr<Foam::GAMGInterface> Foam::GAMGInterface::New
 (
+    const label index,
+    const lduInterfacePtrsList& coarseInterfaces,
     const lduInterface& fineInterface,
     const labelField& localRestrictAddressing,
     const labelField& neighbourRestrictAddressing
@@ -59,6 +61,8 @@ Foam::autoPtr<Foam::GAMGInterface> Foam::GAMGInterface::New
     (
         cstrIter()
         (
+            index,
+            coarseInterfaces,
             fineInterface,
             localRestrictAddressing,
             neighbourRestrictAddressing

src/OpenFOAM/matrices/lduMatrix/solvers/GAMG/interfaces/cyclicGAMGInterface/cyclicGAMGInterface.C

@@ -25,6 +25,7 @@ License
 
 #include "cyclicGAMGInterface.H"
 #include "addToRunTimeSelectionTable.H"
+#include "Map.H"
 
 // * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
 
@@ -44,6 +45,8 @@ namespace Foam
 
 Foam::cyclicGAMGInterface::cyclicGAMGInterface
 (
+    const label index,
+    const lduInterfacePtrsList& coarseInterfaces,
     const lduInterface& fineInterface,
     const labelField& localRestrictAddressing,
     const labelField& neighbourRestrictAddressing
@@ -51,6 +54,8 @@ Foam::cyclicGAMGInterface::cyclicGAMGInterface
 :
     GAMGInterface
     (
+        index,
+        coarseInterfaces,
         fineInterface,
         localRestrictAddressing,
         neighbourRestrictAddressing
@@ -58,33 +63,45 @@ Foam::cyclicGAMGInterface::cyclicGAMGInterface
     fineCyclicInterface_(refCast<const cyclicLduInterface>(fineInterface))
 {
     // Make a lookup table of entries for owner/neighbour
-    HashTable<SLList<label>, label, Hash<label> > neighboursTable
+    Map<SLList<label> > neighboursTable
     (
         localRestrictAddressing.size()
     );
 
     // Table of face-sets to be agglomerated
-    HashTable<SLList<SLList<label> >, label, Hash<label> > faceFaceTable
+    Map<SLList<SLList<label> > > faceFaceTable
     (
         localRestrictAddressing.size()
     );
 
     label nCoarseFaces = 0;
 
-    label sizeBy2 = localRestrictAddressing.size()/2;
-
-    for (label ffi=0; ffi<sizeBy2; ffi++)
+    forAll (localRestrictAddressing, ffi)
     {
-        label curMaster = localRestrictAddressing[ffi];
-        label curSlave = localRestrictAddressing[ffi + sizeBy2];
+        label curMaster = -1;
+        label curSlave = -1;
+
+        // Do switching on master/slave indexes based on the owner/neighbour of
+        // the processor index such that both sides get the same answer.
+        if (owner())
+        {
+            // Master side
+            curMaster = localRestrictAddressing[ffi];
+            curSlave = neighbourRestrictAddressing[ffi];
+        }
+        else
+        {
+            // Slave side
+            curMaster = neighbourRestrictAddressing[ffi];
+            curSlave = localRestrictAddressing[ffi];
+        }
 
         // Look for the master cell.  If it has already got a face,
-        // add the coefficient to the face.  If not, create a new
-        // face.
+        // add the coefficient to the face.  If not, create a new face.
         if (neighboursTable.found(curMaster))
         {
-            // Check all current neighbours to see if the current
-            // slave already exists.  If so, add the coefficient.
+            // Check all current neighbours to see if the current slave already
+            // exists and if so, add the fine face to the agglomeration.
 
             SLList<label>& curNbrs = neighboursTable.find(curMaster)();
 
@@ -135,69 +152,86 @@ Foam::cyclicGAMGInterface::cyclicGAMGInterface
     } // end for all fine faces
 
 
-    faceCells_.setSize(2*nCoarseFaces, -1);
-    faceRestrictAddressing_.setSize(localRestrictAddressing.size(), -1);
+
+    faceCells_.setSize(nCoarseFaces, -1);
+    faceRestrictAddressing_.setSize(localRestrictAddressing.size());
 
     labelList contents = neighboursTable.toc();
 
     // Reset face counter for re-use
     nCoarseFaces = 0;
 
-    // On master side, the owner addressing is stored in table of contents
-    forAll(contents, masterI)
+    if (owner())
     {
-        SLList<label>& curNbrs = neighboursTable.find(contents[masterI])();
-
-        SLList<SLList<label> >& curFaceFaces =
-            faceFaceTable.find(contents[masterI])();
-
-        SLList<label>::iterator nbrsIter = curNbrs.begin();
-        SLList<SLList<label> >::iterator faceFacesIter = curFaceFaces.begin();
-
-        for
-        (
-            ;
-            nbrsIter != curNbrs.end(), faceFacesIter != curFaceFaces.end();
-            ++nbrsIter, ++faceFacesIter
-        )
+        // On master side, the owner addressing is stored in table of contents
+        forAll (contents, masterI)
         {
-            faceCells_[nCoarseFaces] = contents[masterI];
+            SLList<label>& curNbrs = neighboursTable.find(contents[masterI])();
 
-            forAllConstIter(SLList<label>, faceFacesIter(), facesIter)
+            SLList<SLList<label> >& curFaceFaces =
+                faceFaceTable.find(contents[masterI])();
+
+            SLList<label>::iterator nbrsIter = curNbrs.begin();
+            SLList<SLList<label> >::iterator faceFacesIter = curFaceFaces.begin();
+
+            for
+            (
+                ;
+                nbrsIter != curNbrs.end(), faceFacesIter != curFaceFaces.end();
+                ++nbrsIter, ++faceFacesIter
+            )
             {
-                faceRestrictAddressing_[facesIter()] = nCoarseFaces;
-            }
+                faceCells_[nCoarseFaces] = contents[masterI];
 
-            nCoarseFaces++;
+                for
+                (
+                    SLList<label>::iterator facesIter = faceFacesIter().begin();
+                    facesIter != faceFacesIter().end();
+                    ++facesIter
+                )
+                {
+                    faceRestrictAddressing_[facesIter()] = nCoarseFaces;
+                }
+
+                nCoarseFaces++;
+            }
         }
     }
-
-    // On slave side, the owner addressing is stored in linked lists
-    forAll(contents, masterI)
+    else
     {
-        SLList<label>& curNbrs = neighboursTable.find(contents[masterI])();
-
-        SLList<SLList<label> >& curFaceFaces =
-            faceFaceTable.find(contents[masterI])();
-
-        SLList<label>::iterator nbrsIter = curNbrs.begin();
-        SLList<SLList<label> >::iterator faceFacesIter = curFaceFaces.begin();
-
-        for
-        (
-            ;
-            nbrsIter != curNbrs.end(), faceFacesIter != curFaceFaces.end();
-            ++nbrsIter, ++faceFacesIter
-        )
+        // On slave side, the owner addressing is stored in linked lists
+        forAll (contents, masterI)
         {
-            faceCells_[nCoarseFaces] = nbrsIter();
+            SLList<label>& curNbrs = neighboursTable.find(contents[masterI])();
 
-            forAllConstIter(SLList<label>, faceFacesIter(), facesIter)
+            SLList<SLList<label> >& curFaceFaces =
+                faceFaceTable.find(contents[masterI])();
+
+            SLList<label>::iterator nbrsIter = curNbrs.begin();
+
+            SLList<SLList<label> >::iterator faceFacesIter = curFaceFaces.begin();
+
+            for
+            (
+                ;
+                nbrsIter != curNbrs.end(), faceFacesIter != curFaceFaces.end();
+                ++nbrsIter, ++faceFacesIter
+            )
             {
-                faceRestrictAddressing_[facesIter() + sizeBy2] = nCoarseFaces;
-            }
+                faceCells_[nCoarseFaces] = nbrsIter();
 
-            nCoarseFaces++;
+                for
+                (
+                    SLList<label>::iterator facesIter = faceFacesIter().begin();
+                    facesIter != faceFacesIter().end();
+                    ++facesIter
+                )
+                {
+                    faceRestrictAddressing_[facesIter()] = nCoarseFaces;
+                }
+
+                nCoarseFaces++;
+            }
         }
     }
 }
@@ -211,42 +245,24 @@ Foam::cyclicGAMGInterface::~cyclicGAMGInterface()
 
 // * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
-Foam::tmp<Foam::labelField> Foam::cyclicGAMGInterface::transfer
-(
-    const Pstream::commsTypes,
-    const unallocLabelList& interfaceData
-) const
-{
-    tmp<labelField> tpnf(new labelField(size()));
-    labelField& pnf = tpnf();
-
-    label sizeby2 = size()/2;
-
-    for (label facei=0; facei<sizeby2; facei++)
-    {
-        pnf[facei] = interfaceData[facei + sizeby2];
-        pnf[facei + sizeby2] = interfaceData[facei];
-    }
-
-    return tpnf;
-}
-
-
 Foam::tmp<Foam::labelField> Foam::cyclicGAMGInterface::internalFieldTransfer
 (
     const Pstream::commsTypes,
     const unallocLabelList& iF
 ) const
 {
+    const cyclicGAMGInterface& nbr = dynamic_cast<const cyclicGAMGInterface&>
+    (
+        neighbPatch()
+    );
+    const unallocLabelList& nbrFaceCells = nbr.faceCells();
+
     tmp<labelField> tpnf(new labelField(size()));
     labelField& pnf = tpnf();
 
-    label sizeby2 = size()/2;
-
-    for (label facei=0; facei<sizeby2; facei++)
+    forAll(pnf, facei)
     {
-        pnf[facei] = iF[faceCells_[facei + sizeby2]];
-        pnf[facei + sizeby2] = iF[faceCells_[facei]];
+        pnf[facei] = iF[nbrFaceCells[facei]];
     }
 
     return tpnf;

src/OpenFOAM/matrices/lduMatrix/solvers/GAMG/interfaces/cyclicGAMGInterface/cyclicGAMGInterface.H

@@ -80,6 +80,8 @@ public:
         //  local and neighbour restrict addressing
         cyclicGAMGInterface
         (
+            const label index,
+            const lduInterfacePtrsList& coarseInterfaces,
             const lduInterface& fineInterface,
             const labelField& restrictAddressing,
             const labelField& neighbourRestrictAddressing
@@ -94,13 +96,6 @@ public:
 
         // Interface transfer functions
 
-            //- Transfer and return neighbour field
-            virtual tmp<labelField> transfer
-            (
-                const Pstream::commsTypes commsType,
-                const unallocLabelList& interfaceData
-            ) const;
-
             //- Transfer and return internal field adjacent to the interface
             virtual tmp<labelField> internalFieldTransfer
             (
@@ -111,6 +106,25 @@ public:
 
         //- Cyclic interface functions
 
+            //- Return neigbour processor number
+            virtual label neighbPatchID() const
+            {
+                return fineCyclicInterface_.neighbPatchID();
+            }
+
+            virtual bool owner() const
+            {
+                return fineCyclicInterface_.owner();
+            }
+
+            virtual const cyclicGAMGInterface& neighbPatch() const
+            {
+                return dynamic_cast<const cyclicGAMGInterface&>
+                (
+                    coarseInterfaces_[neighbPatchID()]
+                );
+            }
+
             //- Return face transformation tensor
             virtual const tensorField& forwardT() const
             {

src/OpenFOAM/matrices/lduMatrix/solvers/GAMG/interfaces/processorCyclicGAMGInterface/processorCyclicGAMGInterface.C

@@ -0,0 +1,73 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 1991-2009 OpenCFD Ltd.
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software; you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the
+    Free Software Foundation; either version 2 of the License, or (at your
+    option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM; if not, write to the Free Software Foundation,
+    Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+\*---------------------------------------------------------------------------*/
+
+#include "processorCyclicGAMGInterface.H"
+#include "addToRunTimeSelectionTable.H"
+#include "Map.H"
+
+// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
+
+namespace Foam
+{
+    defineTypeNameAndDebug(processorCyclicGAMGInterface, 0);
+    addToRunTimeSelectionTable
+    (
+        GAMGInterface,
+        processorCyclicGAMGInterface,
+        lduInterface
+    );
+}
+
+
+// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
+
+Foam::processorCyclicGAMGInterface::processorCyclicGAMGInterface
+(
+    const label index,
+    const lduInterfacePtrsList& coarseInterfaces,
+    const lduInterface& fineInterface,
+    const labelField& localRestrictAddressing,
+    const labelField& neighbourRestrictAddressing
+)
+:
+    processorGAMGInterface
+    (
+        index,
+        coarseInterfaces,
+        fineInterface,
+        localRestrictAddressing,
+        neighbourRestrictAddressing
+    )
+{}
+
+
+// * * * * * * * * * * * * * * * * Desstructor * * * * * * * * * * * * * * * //
+
+Foam::processorCyclicGAMGInterface::~processorCyclicGAMGInterface()
+{}
+
+
+// ************************************************************************* //

src/OpenFOAM/matrices/lduMatrix/solvers/GAMG/interfaces/processorCyclicGAMGInterface/processorCyclicGAMGInterface.H

@@ -0,0 +1,98 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 1991-2009 OpenCFD Ltd.
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software; you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the
+    Free Software Foundation; either version 2 of the License, or (at your
+    option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM; if not, write to the Free Software Foundation,
+    Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+Class
+    Foam::processorCyclicGAMGInterface
+
+Description
+    GAMG agglomerated processor interface.
+
+SourceFiles
+    processorCyclicGAMGInterface.C
+    processorCyclicGAMGInterfaceTemplates.C
+
+\*---------------------------------------------------------------------------*/
+
+#ifndef processorCyclicGAMGInterface_H
+#define processorCyclicGAMGInterface_H
+
+#include "processorGAMGInterface.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+
+/*---------------------------------------------------------------------------*\
+                  Class processorCyclicGAMGInterface Declaration
+\*---------------------------------------------------------------------------*/
+
+class processorCyclicGAMGInterface
+:
+    public processorGAMGInterface
+{
+    // Private Member Functions
+
+        //- Disallow default bitwise copy construct
+        processorCyclicGAMGInterface(const processorCyclicGAMGInterface&);
+
+        //- Disallow default bitwise assignment
+        void operator=(const processorCyclicGAMGInterface&);
+
+
+public:
+
+    //- Runtime type information
+    TypeName("processorCyclic");
+
+    // Constructors
+
+        //- Construct from fine-level interface,
+        //  local and neighbour restrict addressing
+        processorCyclicGAMGInterface
+        (
+            const label index,
+            const lduInterfacePtrsList& coarseInterfaces,
+            const lduInterface& fineInterface,
+            const labelField& restrictAddressing,
+            const labelField& neighbourRestrictAddressing
+        );
+
+
+    // Destructor
+
+        virtual ~processorCyclicGAMGInterface();
+
+};
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+} // End namespace Foam
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#endif
+
+// ************************************************************************* //

src/OpenFOAM/matrices/lduMatrix/solvers/GAMG/interfaces/processorGAMGInterface/processorGAMGInterface.C

@@ -25,6 +25,7 @@ License
 
 #include "processorGAMGInterface.H"
 #include "addToRunTimeSelectionTable.H"
+#include "Map.H"
 
 // * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
 
@@ -44,6 +45,8 @@ namespace Foam
 
 Foam::processorGAMGInterface::processorGAMGInterface
 (
+    const label index,
+    const lduInterfacePtrsList& coarseInterfaces,
     const lduInterface& fineInterface,
     const labelField& localRestrictAddressing,
     const labelField& neighbourRestrictAddressing
@@ -51,6 +54,8 @@ Foam::processorGAMGInterface::processorGAMGInterface
 :
     GAMGInterface
     (
+        index,
+        coarseInterfaces,
         fineInterface,
         localRestrictAddressing,
         neighbourRestrictAddressing
@@ -58,13 +63,13 @@ Foam::processorGAMGInterface::processorGAMGInterface
     fineProcInterface_(refCast<const processorLduInterface>(fineInterface))
 {
     // Make a lookup table of entries for owner/neighbour
-    HashTable<SLList<label>, label, Hash<label> > neighboursTable
+    Map<SLList<label> > neighboursTable
     (
         localRestrictAddressing.size()
     );
 
     // Table of face-sets to be agglomerated
-    HashTable<SLList<SLList<label> >, label, Hash<label> > faceFaceTable
+    Map<SLList<SLList<label> > > faceFaceTable
     (
         localRestrictAddressing.size()
     );
@@ -233,26 +238,6 @@ Foam::processorGAMGInterface::~processorGAMGInterface()
 
 // * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
-void Foam::processorGAMGInterface::initTransfer
-(
-    const Pstream::commsTypes commsType,
-    const unallocLabelList& interfaceData
-) const
-{
-    send(commsType, interfaceData);
-}
-
-
-Foam::tmp<Foam::labelField> Foam::processorGAMGInterface::transfer
-(
-    const Pstream::commsTypes commsType,
-    const unallocLabelList& interfaceData
-) const
-{
-    return receive<label>(commsType, this->size());
-}
-
-
 void Foam::processorGAMGInterface::initInternalFieldTransfer
 (
     const Pstream::commsTypes commsType,

src/OpenFOAM/matrices/lduMatrix/solvers/GAMG/interfaces/processorGAMGInterface/processorGAMGInterface.H

@@ -80,6 +80,8 @@ public:
         //  local and neighbour restrict addressing
         processorGAMGInterface
         (
+            const label index,
+            const lduInterfacePtrsList& coarseInterfaces,
             const lduInterface& fineInterface,
             const labelField& restrictAddressing,
             const labelField& neighbourRestrictAddressing
@@ -94,20 +96,6 @@ public:
 
         // Interface transfer functions
 
-            //- Initialise interface data transfer
-            virtual void initTransfer
-            (
-                const Pstream::commsTypes commsType,
-                const unallocLabelList& interfaceData
-            ) const;
-
-            //- Transfer and return neighbour field
-            virtual tmp<labelField> transfer
-            (
-                const Pstream::commsTypes commsType,
-                const unallocLabelList& interfaceData
-            ) const;
-
             //- Initialise neighbour field transfer
             virtual void initInternalFieldTransfer
             (
@@ -142,6 +130,12 @@ public:
             {
                 return fineProcInterface_.forwardT();
             }
+
+            //- Return message tag used for sending
+            virtual int tag() const
+            {
+                return fineProcInterface_.tag();
+            }   
 };
 
 

src/OpenFOAM/meshes/pointMesh/pointPatches/constraint/cyclic/cyclicPointPatch.C

@@ -51,28 +51,7 @@ void Foam::cyclicPointPatch::initGeometry(PstreamBuffers&)
 
 
 void Foam::cyclicPointPatch::calcGeometry(PstreamBuffers&)
-{
-    const edgeList& cp = cyclicPolyPatch_.coupledPoints();
-    const labelList& mp = cyclicPolyPatch_.meshPoints();
-
-    DynamicList<label> separated;
-    forAll(cp, i)
-    {
-        const edge& coupledSet = cp[i];
-
-        // Assume all points are separated.
-        separated.append(coupledSet[0]);
-        separated.append(coupledSet[1]);
-    }
-    separatedPoints_.transfer(separated);
-
-    if (debug)
-    {
-        Pout<< "cyclic:" << cyclicPolyPatch_.name()
-            << " separated:" << separatedPoints_.size()
-            << " out of points:" << mp.size() << endl;
-    }
-}
+{}
 
 
 void Foam::cyclicPointPatch::initMovePoints(PstreamBuffers&, const pointField&)
@@ -124,10 +103,4 @@ const Foam::edgeList& Foam::cyclicPointPatch::transformPairs() const
 }
 
 
-const Foam::labelList& Foam::cyclicPointPatch::separatedPoints() const
-{
-    return separatedPoints_;
-}
-
-
 // ************************************************************************* //

src/OpenFOAM/meshes/pointMesh/pointPatches/constraint/cyclic/cyclicPointPatch.H

@@ -37,6 +37,7 @@ SourceFiles
 
 #include "coupledFacePointPatch.H"
 #include "cyclicPolyPatch.H"
+#include "pointBoundaryMesh.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
@@ -56,8 +57,6 @@ class cyclicPointPatch
         //- Local reference cast into the cyclic patch
         const cyclicPolyPatch& cyclicPolyPatch_;
 
-        //- List of local points that are not collocated
-        mutable labelList separatedPoints_;
 
     // Private Member Functions
 
@@ -125,6 +124,14 @@ public:
                 return cyclicPolyPatch_;
             }
 
+            //- Return neighbour point patch
+            const cyclicPointPatch& neighbPatch() const
+            {
+                label patchI = cyclicPolyPatch_.neighbPatchID();
+                const pointPatch& pp = this->boundaryMesh()[patchI];
+                return refCast<const cyclicPointPatch>(pp);
+            }
+
             //- Are the cyclic planes parallel
             bool parallel() const
             {
@@ -147,11 +154,10 @@ public:
         // Access functions for demand driven data
 
             //- Return the set of pairs of points that require transformation
-            //  and/or mapping
+            //  and/or mapping. First index is on this patch, second on the
+            //  neighbour patch.
             virtual const edgeList& transformPairs() const;
 
-            //- List of separated coupled points
-            virtual const labelList& separatedPoints() const;
 };
 
 

src/OpenFOAM/meshes/pointMesh/pointPatches/constraint/processor/processorPointPatch.C

@@ -73,51 +73,7 @@ void Foam::processorPointPatch::initGeometry(PstreamBuffers& pBufs)
 
 
 void Foam::processorPointPatch::calcGeometry(PstreamBuffers& pBufs)
-{
-    if (Pstream::parRun())
-    {
-        const boolList& collocated = procPolyPatch_.collocated();
-
-        if (collocated.size() == 0)
-        {
-            separatedPoints_.setSize(0);
-        }
-        else if (collocated.size() == 1)
-        {
-            // Uniformly
-            if (collocated[0])
-            {
-                separatedPoints_.setSize(0);
-            }
-            else
-            {
-                separatedPoints_ = identity(size());
-            }
-        }
-        else
-        {
-            // Per face collocated or not.
-            const labelListList& pointFaces = procPolyPatch_.pointFaces();
-
-            DynamicList<label> separated;
-            forAll(pointFaces, pfi)
-            {
-                if (!collocated[pointFaces[pfi][0]])
-                {
-                    separated.append(pfi);
-                }
-            }
-            separatedPoints_.transfer(separated);
-        }
-    }
-
-    if (debug)
-    {
-        Pout<< "processor:" << name()
-            << " separated:" << separatedPoints_.size()
-            << " out of points:" << size() << endl;
-    }
-}
+{}
 
 
 void Foam::processorPointPatch::initMovePoints
@@ -173,10 +129,4 @@ const Foam::labelList& Foam::processorPointPatch::reverseMeshPoints() const
 }
 
 
-const Foam::labelList& Foam::processorPointPatch::separatedPoints() const
-{
-    return separatedPoints_;
-}
-
-
 // ************************************************************************* //

src/OpenFOAM/meshes/pointMesh/pointPatches/constraint/processor/processorPointPatch.H

@@ -65,7 +65,6 @@ class processorPointPatch
 
         mutable labelList reverseMeshPoints_;
 
-        mutable labelList separatedPoints_;
 
     // Private Member Functions
 
@@ -129,6 +128,12 @@ public:
             }
         }
 
+        //- Return message tag to use for communication
+        virtual int tag() const
+        {
+            return procPolyPatch_.tag();
+        }
+
         //- Return the constraint type this pointPatch implements.
         virtual const word& constraintType() const
         {
@@ -168,9 +173,6 @@ public:
         //- Return mesh points in the correct order for the receiving side
         const labelList& reverseMeshPoints() const;
 
-        //- List of separated coupled points
-        virtual const labelList& separatedPoints() const;
-
 };
 
 

src/OpenFOAM/meshes/pointMesh/pointPatches/constraint/processorCyclic/processorCyclicPointPatch.C

@@ -0,0 +1,400 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 1991-2009 OpenCFD Ltd.
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software; you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the
+    Free Software Foundation; either version 2 of the License, or (at your
+    option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM; if not, write to the Free Software Foundation,
+    Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+\*---------------------------------------------------------------------------*/
+
+#include "processorCyclicPointPatch.H"
+#include "pointBoundaryMesh.H"
+#include "addToRunTimeSelectionTable.H"
+//#include "pointMesh.H"
+//#include "globalPointPatch.H"
+//#include "faceList.H"
+//#include "primitiveFacePatch.H"
+//#include "emptyPolyPatch.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+
+// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
+
+defineTypeNameAndDebug(processorCyclicPointPatch, 0);
+
+addToRunTimeSelectionTable
+(
+    facePointPatch,
+    processorCyclicPointPatch,
+    polyPatch
+);
+
+
+// * * * * * * * * * * * * * Protected Member Functions  * * * * * * * * * * //
+
+//void Foam::processorCyclicPointPatch::initGeometry(PstreamBuffers& pBufs)
+//{
+//    // Algorithm:
+//    // Depending on whether the patch is a master or a slave, get the primitive
+//    // patch points and filter away the points from the global patch.
+//
+//    if (isMaster())
+//    {
+//        meshPoints_ = procPolyPatch_.meshPoints();
+//    }
+//    else
+//    {
+//        // Slave side. Create the reversed patch and pick up its points
+//        // so that the order is correct
+//        const polyPatch& pp = patch();
+//
+//        faceList masterFaces(pp.size());
+//
+//        forAll (pp, faceI)
+//        {
+//            masterFaces[faceI] = pp[faceI].reverseFace();
+//        }
+//
+//        meshPoints_ = primitiveFacePatch
+//        (
+//            masterFaces,
+//            pp.points()
+//        ).meshPoints();
+//    }
+//
+//    if (Pstream::parRun())
+//    {
+//        initPatchPatchPoints(pBufs);
+//    }
+//}
+//
+//
+//void Foam::processorCyclicPointPatch::calcGeometry(PstreamBuffers& pBufs)
+//{
+//    if (Pstream::parRun())
+//    {
+//        calcPatchPatchPoints(pBufs);
+//    }
+//
+//    // If it is not runing parallel or there are no global points
+//    // create a 1->1 map
+//    if
+//    (
+//        !Pstream::parRun()
+//     || !boundaryMesh().mesh().globalData().nGlobalPoints()
+//    )
+//    {
+//        nonGlobalPatchPoints_.setSize(meshPoints_.size());
+//        forAll(nonGlobalPatchPoints_, i)
+//        {
+//            nonGlobalPatchPoints_[i] = i;
+//        }
+//    }
+//    else
+//    {
+//        // Get reference to shared points
+//        const labelList& sharedPoints =
+//            boundaryMesh().globalPatch().meshPoints();
+//
+//        nonGlobalPatchPoints_.setSize(meshPoints_.size());
+//
+//        label noFiltPoints = 0;
+//
+//        forAll (meshPoints_, pointI)
+//        {
+//            label curP = meshPoints_[pointI];
+//
+//            bool found = false;
+//
+//            forAll (sharedPoints, sharedI)
+//            {
+//                if (sharedPoints[sharedI] == curP)
+//                {
+//                    found = true;
+//                    break;
+//                }
+//            }
+//
+//            if (!found)
+//            {
+//                nonGlobalPatchPoints_[noFiltPoints] = pointI;
+//                meshPoints_[noFiltPoints] = curP;
+//                noFiltPoints++;
+//            }
+//        }
+//
+//        nonGlobalPatchPoints_.setSize(noFiltPoints);
+//        meshPoints_.setSize(noFiltPoints);
+//    }
+//}
+//
+//
+//void processorCyclicPointPatch::initPatchPatchPoints(PstreamBuffers& pBufs)
+//{
+//    if (debug)
+//    {
+//        Info<< "processorCyclicPointPatch::initPatchPatchPoints(PstreamBuffers&) : "
+//            << "constructing patch-patch points"
+//            << endl;
+//    }
+//
+//    const polyBoundaryMesh& bm = boundaryMesh().mesh()().boundaryMesh();
+//
+//    // Get the mesh points for this patch corresponding to the faces
+//    const labelList& ppmp = meshPoints();
+//
+//    // Create a HashSet of the point labels for this patch
+//    Map<label> patchPointSet(2*ppmp.size());
+//
+//    forAll (ppmp, ppi)
+//    {
+//        patchPointSet.insert(ppmp[ppi], ppi);
+//    }
+//
+//
+//    // Create the lists of patch-patch points
+//    labelListList patchPatchPoints(bm.size());
+//
+//    // Create the lists of patch-patch point normals
+//    List<List<vector> > patchPatchPointNormals(bm.size());
+//
+//    // Loop over all patches looking for other patches that share points
+//    forAll(bm, patchi)
+//    {
+//        if
+//        (
+//            patchi != index()                 // Ignore self-self
+//         && !isA<emptyPolyPatch>(bm[patchi])  // Ignore empty
+//         && !bm[patchi].coupled()             // Ignore other couples
+//        )
+//        {
+//            // Get the meshPoints for the other patch
+//            const labelList& meshPoints = bm[patchi].meshPoints();
+//
+//            // Get the normals for the other patch
+//            const vectorField& normals = bm[patchi].pointNormals();
+//
+//            label pppi = 0;
+//            forAll(meshPoints, pointi)
+//            {
+//                label ppp = meshPoints[pointi];
+//
+//                // Check to see if the point of the other patch is shared with
+//                // this patch
+//                Map<label>::iterator iter = patchPointSet.find(ppp);
+//
+//                if (iter != patchPointSet.end())
+//                {
+//                    // If it is shared initialise the patchPatchPoints for this
+//                    // patch
+//                    if (!patchPatchPoints[patchi].size())
+//                    {
+//                        patchPatchPoints[patchi].setSize(ppmp.size());
+//                        patchPatchPointNormals[patchi].setSize(ppmp.size());
+//                    }
+//
+//                    // and add the entry
+//                    patchPatchPoints[patchi][pppi] = iter();
+//                    patchPatchPointNormals[patchi][pppi] = normals[pointi];
+//                    pppi++;
+//                }
+//            }
+//
+//            // Resise the list of shared points and normals for the patch
+//            // being considerd
+//            patchPatchPoints[patchi].setSize(pppi);
+//            patchPatchPointNormals[patchi].setSize(pppi);
+//        }
+//    }
+//
+//    // Send the patchPatchPoints to the neighbouring processor
+//
+//    UOPstream toNeighbProc(neighbProcNo(), pBufs);
+//
+//    toNeighbProc
+//        << ppmp.size()              // number of points for checking
+//        << patchPatchPoints
+//        << patchPatchPointNormals;
+//
+//    if (debug)
+//    {
+//        Info<< "processorCyclicPointPatch::initPatchPatchPoints() : "
+//            << "constructed patch-patch points"
+//            << endl;
+//    }
+//}
+//
+//
+//void Foam::processorCyclicPointPatch::calcPatchPatchPoints(PstreamBuffers& pBufs)
+//{
+//    // Get the patchPatchPoints from the neighbouring processor
+//    UIPstream fromNeighbProc(neighbProcNo(), pBufs);
+//
+//    label nbrNPoints(readLabel(fromNeighbProc));
+//    labelListList patchPatchPoints(fromNeighbProc);
+//    List<List<vector> > patchPatchPointNormals(fromNeighbProc);
+//
+//    pointBoundaryMesh& pbm = const_cast<pointBoundaryMesh&>(boundaryMesh());
+//    const labelList& ppmp = meshPoints();
+//
+//    // Simple check for the very rare situation when not the same number
+//    // of points on both sides. This can happen with decomposed cyclics.
+//    // If on one side the cyclic shares a point with proc faces coming from
+//    // internal faces it will have a different number of points from
+//    // the situation where the cyclic and the 'normal' proc faces are fully
+//    // separate.
+//    if (nbrNPoints != ppmp.size())
+//    {
+//        WarningIn("processorCyclicPointPatch::calcPatchPatchPoints(PstreamBuffers&)")
+//            << "Processor patch " << name()
+//            << " has " << ppmp.size() << " points; coupled patch has "
+//            << nbrNPoints << " points." << endl
+//            << "   (usually due to decomposed cyclics)."
+//            << " This might give problems" << endl
+//            << "    when using point fields (interpolation, mesh motion)."
+//            << endl;
+//    }
+//
+//
+//
+//    // Loop over the patches looking for other patches that share points
+//    forAll(patchPatchPoints, patchi)
+//    {
+//        const labelList& patchPoints = patchPatchPoints[patchi];
+//        const List<vector>& patchPointNormals = patchPatchPointNormals[patchi];
+//
+//        // If there are potentially shared points for the patch being considered
+//        if (patchPoints.size())
+//        {
+//            // Get the current meshPoints list for the patch
+//            facePointPatch& fpp = refCast<facePointPatch>(pbm[patchi]);
+//            const labelList& fmp = fpp.meshPoints();
+//            labelList& mp = fpp.meshPoints_;
+//
+//            const vectorField& fnormals = fpp.pointNormals();
+//            vectorField& normals = fpp.pointNormals_;
+//
+//            // Create a HashSet of the point labels for the patch
+//            Map<label> patchPointSet(2*fmp.size());
+//
+//            forAll (fmp, ppi)
+//            {
+//                patchPointSet.insert(fmp[ppi], ppi);
+//            }
+//
+//            label nPoints = mp.size();
+//            label lpi = 0;
+//            bool resized = false;
+//
+//            // For each potentially shared point...
+//            forAll(patchPoints, ppi)
+//            {
+//                // Check if it is not already in the patch,
+//                // i.e. not part of a face of the patch
+//                if (!patchPointSet.found(ppmp[patchPoints[ppi]]))
+//                {
+//                    // If it isn't already in the patch check if the local
+//                    // meshPoints is already set and if not initialise the
+//                    // meshPoints_ and pointNormals_
+//                    if (!resized)
+//                    {
+//                        if (!mp.size() && fmp.size())
+//                        {
+//                            mp = fmp;
+//                            normals = fnormals;
+//
+//                            nPoints = mp.size();
+//                        }
+//
+//                        mp.setSize(nPoints + patchPoints.size());
+//                        loneMeshPoints_.setSize(patchPoints.size());
+//                        normals.setSize(nPoints + patchPoints.size());
+//                        resized = true;
+//                    }
+//
+//                    // Add the new point to the patch
+//                    mp[nPoints] = ppmp[patchPoints[ppi]];
+//                    loneMeshPoints_[lpi++] = ppmp[patchPoints[ppi]];
+//                    normals[nPoints++] = patchPointNormals[ppi];
+//                }
+//            }
+//
+//            // If the lists have been resized points have been added.
+//            // Shrink the lists to the current size.
+//            if (resized)
+//            {
+//                mp.setSize(nPoints);
+//                loneMeshPoints_.setSize(lpi);
+//                normals.setSize(nPoints);
+//            }
+//        }
+//    }
+//}
+
+
+//void processorCyclicPointPatch::initMovePoints(PstreamBuffers&, const pointField&)
+//{}
+//
+//
+//void processorCyclicPointPatch::movePoints(PstreamBuffers&, const pointField&)
+//{}
+//
+//
+//void processorCyclicPointPatch::initUpdateMesh(PstreamBuffers& pBufs)
+//{
+//    facePointPatch::initUpdateMesh(pBufs);
+//    processorCyclicPointPatch::initGeometry(pBufs);
+//}
+//
+//
+//void processorCyclicPointPatch::updateMesh(PstreamBuffers& pBufs)
+//{
+//    facePointPatch::updateMesh(pBufs);
+//    processorCyclicPointPatch::calcGeometry(pBufs);
+//}
+
+
+// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
+
+processorCyclicPointPatch::processorCyclicPointPatch
+(
+    const polyPatch& patch,
+    const pointBoundaryMesh& bm
+)
+:
+    processorPointPatch(patch, bm),
+    procCycPolyPatch_(refCast<const processorCyclicPolyPatch>(patch))
+{}
+
+
+// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
+
+processorCyclicPointPatch::~processorCyclicPointPatch()
+{}
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+} // End namespace Foam
+
+// ************************************************************************* //

src/OpenFOAM/meshes/pointMesh/pointPatches/constraint/processorCyclic/processorCyclicPointPatch.H

@@ -0,0 +1,156 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 1991-2009 OpenCFD Ltd.
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software; you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the
+    Free Software Foundation; either version 2 of the License, or (at your
+    option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM; if not, write to the Free Software Foundation,
+    Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+Class
+    Foam::processorCyclicPointPatch
+
+Description
+    Processor patch boundary needs to be such that the ordering of
+    points in the patch is the same on both sides.
+
+    Looking at the creation of the faces on both sides of the processor
+    patch they need to be identical on both sides with the normals pointing
+    in opposite directions.  This is achieved by calling the reverseFace
+    function in the decomposition.  It is therefore possible to re-create
+    the ordering of patch points on the slave side by reversing all the
+    patch faces of the owner.
+
+SourceFiles
+    processorCyclicPointPatch.C
+
+\*---------------------------------------------------------------------------*/
+
+#ifndef processorCyclicPointPatch_H
+#define processorCyclicPointPatch_H
+
+#include "processorPointPatch.H"
+#include "processorCyclicPolyPatch.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+
+/*---------------------------------------------------------------------------*\
+                      Class processorCyclicPointPatch Declaration
+\*---------------------------------------------------------------------------*/
+
+class processorCyclicPointPatch
+:
+    public processorPointPatch
+{
+    // Private data
+
+        const processorCyclicPolyPatch& procCycPolyPatch_;
+
+        //- Disallow default construct as copy
+        processorCyclicPointPatch(const processorCyclicPointPatch&);
+
+        //- Disallow default assignment
+        void operator=(const processorCyclicPointPatch&);
+
+public:
+
+    //- Runtime type information
+    TypeName(processorCyclicPolyPatch::typeName_());
+
+
+    // Constructors
+
+        //- Construct from components
+        processorCyclicPointPatch
+        (
+            const polyPatch& patch,
+            const pointBoundaryMesh& bm
+        );
+
+
+    // Destructor
+
+        virtual ~processorCyclicPointPatch();
+
+
+    // Member functions
+
+
+        //- Return message tag to use for communication
+        virtual int tag() const
+        {
+            return procCycPolyPatch_.tag();
+        }
+
+//        //- Return true if running parallel
+//        virtual bool coupled() const
+//        {
+//            if (Pstream::parRun())
+//            {
+//                return true;
+//            }
+//            else
+//            {
+//                return false;
+//            }
+//        }
+//
+//        //- Return processor number
+//        int myProcNo() const
+//        {
+//            return procPolyPatch_.myProcNo();
+//        }
+//
+//        //- Return neigbour processor number
+//        int neighbProcNo() const
+//        {
+//            return procPolyPatch_.neighbProcNo();
+//        }
+//
+//        //- Is this a master patch
+//        bool isMaster() const
+//        {
+//            return myProcNo() < neighbProcNo();
+//        }
+//
+//        //- Is this a slave patch
+//        bool isSlave() const
+//        {
+//            return !isMaster();
+//        }
+//
+        //- Return the underlying processorCyclicPolyPatch
+        const processorCyclicPolyPatch& procCyclicPolyPatch() const
+        {
+            return procCycPolyPatch_;
+        }
+};
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+} // End namespace Foam
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#endif
+
+// ************************************************************************* //

src/OpenFOAM/meshes/pointMesh/pointPatches/derived/coupled/coupledFacePointPatch.H

@@ -108,8 +108,6 @@ public:
                 return true;
             }
 
-            //- List of separated coupled points
-            virtual const labelList& separatedPoints() const = 0;
 };
 
 

src/OpenFOAM/meshes/polyMesh/globalMeshData/globalMeshData.C

@@ -77,34 +77,38 @@ void Foam::globalMeshData::initProcAddr()
 
     if (Pstream::parRun())
     {
+        PstreamBuffers pBufs(Pstream::nonBlocking);
+
         // Send indices of my processor patches to my neighbours
         forAll(processorPatches_, i)
         {
             label patchi = processorPatches_[i];
 
-            OPstream toNeighbour
+            UOPstream toNeighbour
             (
-                Pstream::blocking,
                 refCast<const processorPolyPatch>
                 (
                     mesh_.boundaryMesh()[patchi]
-                ).neighbProcNo()
+                ).neighbProcNo(),
+                pBufs
             );
 
             toNeighbour << processorPatchIndices_[patchi];
         }
 
+        pBufs.finishedSends();
+
         forAll(processorPatches_, i)
         {
             label patchi = processorPatches_[i];
 
-            IPstream fromNeighbour
+            UIPstream fromNeighbour
             (
-                Pstream::blocking,
                 refCast<const processorPolyPatch>
                 (
                     mesh_.boundaryMesh()[patchi]
-                ).neighbProcNo()
+                ).neighbProcNo(),
+                pBufs
             );
 
             fromNeighbour >> processorPatchNeighbours_[patchi];
@@ -2000,24 +2004,10 @@ void Foam::globalMeshData::updateMesh()
     {
         label patchI = processorPatches_[i];
 
-        const processorPolyPatch& procPatch =
-            refCast<const processorPolyPatch>(mesh_.boundaryMesh()[patchI]);
-
-        if (Pstream::myProcNo() > procPatch.neighbProcNo())
+        if (isType<processorPolyPatch>(mesh_.boundaryMesh()[patchI]))
         {
-            // Uncount my faces. Handle cyclics separately.
-
-            if (procPatch.separated())
-            {
-                const vectorField& separationDist = procPatch.separation();
-
-                nTotalFaces_ -= countCoincidentFaces(tolDim, separationDist);
-            }
-            else
-            {
-                // Normal, unseparated processor patch. Remove duplicates.
-                nTotalFaces_ -= procPatch.size();
-            }
+            // Normal, unseparated processor patch. Remove duplicates.
+            nTotalFaces_ -= mesh_.boundaryMesh()[patchI].size();
         }
     }
     reduce(nTotalFaces_, sumOp<label>());
@@ -2060,6 +2050,8 @@ void Foam::globalMeshData::updateMesh()
             pointStatus.set(meshPointI, SHARED);
         }
 
+        PstreamBuffers pBufs(Pstream::nonBlocking);
+
         // Send patch local points
         forAll(processorPatches_, i)
         {
@@ -2068,11 +2060,13 @@ void Foam::globalMeshData::updateMesh()
             const processorPolyPatch& procPatch =
                 refCast<const processorPolyPatch>(mesh_.boundaryMesh()[patchI]);
 
-            OPstream toNeighbour(Pstream::blocking, procPatch.neighbProcNo());
+            UOPstream toNeighbour(procPatch.neighbProcNo(), pBufs);
 
             toNeighbour << procPatch.localPoints();
         }
 
+        pBufs.finishedSends();
+
         // Receive patch local points and uncount if coincident (and not shared)
         forAll(processorPatches_, i)
         {
@@ -2081,7 +2075,7 @@ void Foam::globalMeshData::updateMesh()
             const processorPolyPatch& procPatch =
                 refCast<const processorPolyPatch>(mesh_.boundaryMesh()[patchI]);
 
-            IPstream fromNeighbour(Pstream::blocking, procPatch.neighbProcNo());
+            UIPstream fromNeighbour(procPatch.neighbProcNo(), pBufs);
 
             pointField nbrPoints(fromNeighbour);
 

src/OpenFOAM/meshes/polyMesh/globalMeshData/globalPoints.C

@@ -25,6 +25,7 @@ License
 
 #include "globalPoints.H"
 #include "processorPolyPatch.H"
+#include "processorCyclicPolyPatch.H"
 #include "cyclicPolyPatch.H"
 #include "polyMesh.H"
 
@@ -40,45 +41,6 @@ const Foam::label Foam::globalPoints::fromCollocated = labelMax/2;
 // Routines to handle global indices
 // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
-Foam::PackedBoolList Foam::globalPoints::collocatedPoints
-(
-    const coupledPolyPatch& pp
-)
-{
-    // Initialise to false
-    PackedBoolList isCollocated(pp.nPoints());
-
-    const boolList& collocated = pp.collocated();
-
-    if (collocated.size() == 0)
-    {
-        isCollocated = 1;
-    }
-    else if (collocated.size() == 1)
-    {
-        // Uniform.
-        if (collocated[0])
-        {
-            isCollocated = 1;
-        }
-    }
-    else
-    {
-        // Per face collocated or not.
-        const labelListList& pointFaces = pp.pointFaces();
-
-        forAll(pointFaces, pfi)
-        {
-            if (collocated[pointFaces[pfi][0]])
-            {
-                isCollocated[pfi] = 1;
-            }
-        }
-    }
-    return isCollocated;
-}
-    
-
 Foam::label Foam::globalPoints::toGlobal
 (
     const label localPointI,
@@ -369,16 +331,9 @@ void Foam::globalPoints::initOwnPoints
          || isA<cyclicPolyPatch>(pp)
         )
         {
-            // Find points with transforms
-
-            PackedBoolList isCollocatedPoint
-            (
-                collocatedPoints
-                (
-                    refCast<const coupledPolyPatch>(pp)
-                )
-            );
-
+            // Assume all processor points are collocated and all
+            // processorCyclic and cyclic are separated.
+            bool isCollocatedPoint = isType<processorPolyPatch>(pp);
 
             const labelList& meshPoints = pp.meshPoints();
 
@@ -396,7 +351,7 @@ void Foam::globalPoints::initOwnPoints
                     labelList knownInfo
                     (
                         1,
-                        toGlobal(localPointI, isCollocatedPoint[patchPointI])
+                        toGlobal(localPointI, isCollocatedPoint)
                     );
 
                     // Update addressing from point to index in procPoints
@@ -425,11 +380,7 @@ void Foam::globalPoints::initOwnPoints
                     labelList knownInfo
                     (
                         1,
-                        toGlobal
-                        (
-                            localPointI,
-                            isCollocatedPoint[boundaryPoints[i]]
-                        )
+                        toGlobal(localPointI, isCollocatedPoint)
                     );
 
                     // Update addressing from point to index in procPoints
@@ -461,20 +412,21 @@ void Foam::globalPoints::sendPatchPoints
     {
         const polyPatch& pp = patches[patchI];
 
-        if (Pstream::parRun() && isA<processorPolyPatch>(pp))
+        if
+        (
+            Pstream::parRun()
+         && (
+                isType<processorPolyPatch>(pp)
+             || (mergeSeparated && isA<processorCyclicPolyPatch>(pp))
+            )
+        )
         {
+            // processor cyclics are considered separated, pure processor
+            // always collocated.
+
             const processorPolyPatch& procPatch =
                 refCast<const processorPolyPatch>(pp);
 
-            PackedBoolList isCollocatedPoint
-            (
-                collocatedPoints
-                (
-                    procPatch
-                )
-            );
-
-
             // Information to send:
             // patch face
             DynamicList<label> patchFaces(pp.nPoints());
@@ -492,34 +444,31 @@ void Foam::globalPoints::sendPatchPoints
 
             forAll(meshPoints, patchPointI)
             {
-                if (mergeSeparated || isCollocatedPoint[patchPointI])
+                label meshPointI = meshPoints[patchPointI];
+                label localPointI = meshToLocalPoint
+                (
+                    meshToPatchPoint,
+                    meshPointI
+                );
+
+                if (changedPoints.found(localPointI))
                 {
-                    label meshPointI = meshPoints[patchPointI];
-                    label localPointI = meshToLocalPoint
+                    label index = meshToProcPoint_[localPointI];
+
+                    const labelList& knownInfo = procPoints_[index];
+
+                    // Add my information about localPointI to the
+                    // send buffers
+                    addToSend
                     (
-                        meshToPatchPoint,
-                        meshPointI
+                        pp,
+                        patchPointI,
+                        knownInfo,
+
+                        patchFaces,
+                        indexInFace,
+                        allInfo
                     );
-
-                    if (changedPoints.found(localPointI))
-                    {
-                        label index = meshToProcPoint_[localPointI];
-
-                        const labelList& knownInfo = procPoints_[index];
-
-                        // Add my information about localPointI to the
-                        // send buffers
-                        addToSend
-                        (
-                            pp,
-                            patchPointI,
-                            knownInfo,
-
-                            patchFaces,
-                            indexInFace,
-                            allInfo
-                        );
-                    }
                 }
             }
 
@@ -560,18 +509,20 @@ void Foam::globalPoints::receivePatchPoints
     {
         const polyPatch& pp = patches[patchI];
 
-        if (Pstream::parRun() && isA<processorPolyPatch>(pp))
+        if
+        (
+            Pstream::parRun()
+         && (
+                isType<processorPolyPatch>(pp)
+             || (mergeSeparated && isA<processorCyclicPolyPatch>(pp))
+            )
+        )
         {
             const processorPolyPatch& procPatch =
                 refCast<const processorPolyPatch>(pp);
 
-            PackedBoolList isCollocatedPoint
-            (
-                collocatedPoints
-                (
-                    procPatch
-                )
-            );
+            // Processor patch is always collocated, processorCyclic is not.
+            bool isCollocatedPoint = isType<processorPolyPatch>(pp);
 
             labelList patchFaces;
             labelList indexInFace;
@@ -605,21 +556,13 @@ void Foam::globalPoints::receivePatchPoints
                     meshPointI
                 );
 
-                if
-                (
-                    storeInfo
-                    (
-                        nbrInfo[i],
-                        localPointI,
-                        isCollocatedPoint[pp.meshPointMap()[meshPointI]]
-                    )
-                )
+                if (storeInfo(nbrInfo[i], localPointI, isCollocatedPoint))
                 {
                     changedPoints.insert(localPointI);
                 }
             }
         }
-        else if (isA<cyclicPolyPatch>(pp))
+        else if (mergeSeparated && isA<cyclicPolyPatch>(pp))
         {
             // Handle cyclics: send lower half to upper half and vice versa.
             // Or since they both are in memory just do it point by point.
@@ -627,80 +570,49 @@ void Foam::globalPoints::receivePatchPoints
             const cyclicPolyPatch& cycPatch =
                 refCast<const cyclicPolyPatch>(pp);
 
-            PackedBoolList isCollocatedPoint
-            (
-                collocatedPoints
-                (
-                    cycPatch
-                )
-            );
-
             const labelList& meshPoints = pp.meshPoints();
+            const labelList coupledMeshPoints(reverseMeshPoints(cycPatch));
 
-            //const edgeList& connections = cycPatch.coupledPoints();
-            const edgeList connections(coupledPoints(cycPatch));
-
-            forAll(connections, i)
+            forAll(meshPoints, i)
             {
-                const edge& e = connections[i];
+                label meshPointA = meshPoints[i];
+                label meshPointB = coupledMeshPoints[i];
 
-                if (mergeSeparated || isCollocatedPoint[e[0]])
+                label localA = meshToLocalPoint
+                (
+                    meshToPatchPoint,
+                    meshPointA
+                );
+                label localB = meshToLocalPoint
+                (
+                    meshToPatchPoint,
+                    meshPointB
+                );
+
+
+                // Do we have information on pointA?
+                Map<label>::iterator procPointA =
+                    meshToProcPoint_.find(localA);
+
+                if (procPointA != meshToProcPoint_.end())
                 {
-                    label meshPointA = meshPoints[e[0]];
-                    label meshPointB = meshPoints[e[1]];
-
-                    label localA = meshToLocalPoint
-                    (
-                        meshToPatchPoint,
-                        meshPointA
-                    );
-                    label localB = meshToLocalPoint
-                    (
-                        meshToPatchPoint,
-                        meshPointB
-                    );
-
-
-                    // Do we have information on pointA?
-                    Map<label>::iterator procPointA =
-                        meshToProcPoint_.find(localA);
-
-                    if (procPointA != meshToProcPoint_.end())
+                    // Store A info onto pointB
+                    if (storeInfo(procPoints_[procPointA()], localB, false))
                     {
-                        // Store A info onto pointB
-                        if
-                        (
-                            storeInfo
-                            (
-                                procPoints_[procPointA()],
-                                localB,
-                                isCollocatedPoint[e[1]]
-                            )
-                        )
-                        {
-                            changedPoints.insert(localB);
-                        }
+                        changedPoints.insert(localB);
                     }
+                }
 
-                    // Same for info on pointB
-                    Map<label>::iterator procPointB =
-                        meshToProcPoint_.find(localB);
+                // Same for info on pointB
+                Map<label>::iterator procPointB =
+                    meshToProcPoint_.find(localB);
 
-                    if (procPointB != meshToProcPoint_.end())
+                if (procPointB != meshToProcPoint_.end())
+                {
+                    // Store B info onto pointA
+                    if (storeInfo(procPoints_[procPointB()], localA, false))
                     {
-                        // Store B info onto pointA
-                        if
-                        (
-                            storeInfo
-                            (
-                                procPoints_[procPointB()],
-                                localA,
-                                isCollocatedPoint[e[0]]
-                            )
-                        )
-                        {
-                            changedPoints.insert(localA);
-                        }
+                        changedPoints.insert(localA);
                     }
                 }
             }
@@ -970,7 +882,14 @@ void Foam::globalPoints::sendSharedPoints
     {
         const polyPatch& pp = patches[patchI];
 
-        if (Pstream::parRun() && isA<processorPolyPatch>(pp))
+        if
+        (
+            Pstream::parRun()
+         && (
+                isType<processorPolyPatch>(pp)
+             || (mergeSeparated && isA<processorCyclicPolyPatch>(pp))
+            )
+        )
         {
             const processorPolyPatch& procPatch =
                 refCast<const processorPolyPatch>(pp);
@@ -1057,7 +976,14 @@ void Foam::globalPoints::receiveSharedPoints
     {
         const polyPatch& pp = patches[patchI];
 
-        if (Pstream::parRun() && isA<processorPolyPatch>(pp))
+        if
+        (
+            Pstream::parRun()
+         && (
+                isType<processorPolyPatch>(pp)
+             || (mergeSeparated && isA<processorCyclicPolyPatch>(pp))
+            )
+        )
         {
             const processorPolyPatch& procPatch =
                 refCast<const processorPolyPatch>(pp);
@@ -1128,19 +1054,11 @@ void Foam::globalPoints::receiveSharedPoints
                 }
             }
         }
-        else if (isA<cyclicPolyPatch>(pp))
+        else if (mergeSeparated && isA<cyclicPolyPatch>(pp))
         {
             const cyclicPolyPatch& cycPatch =
                 refCast<const cyclicPolyPatch>(pp);
 
-            PackedBoolList isCollocatedPoint
-            (
-                collocatedPoints
-                (
-                    cycPatch
-                )
-            );
-
             // Build map from mesh or patch point to sharedPoint.
             Map<label> localToSharedPoint(sharedPointAddr_.size());
             forAll(sharedPointLabels_, i)
@@ -1156,80 +1074,76 @@ void Foam::globalPoints::receiveSharedPoints
             }
 
             // Sync all info.
-            //const edgeList& connections = cycPatch.coupledPoints();
-            const edgeList connections(coupledPoints(cycPatch));
 
-            forAll(connections, i)
+            const labelList& meshPoints = cycPatch.meshPoints();
+            const labelList coupledMeshPoints(reverseMeshPoints(cycPatch));
+
+            forAll(meshPoints, i)
             {
-                const edge& e = connections[i];
+                label meshPointA = meshPoints[i];
+                label meshPointB = coupledMeshPoints[i];
 
-                if (mergeSeparated || isCollocatedPoint[e[0]])
+                label localA = meshToLocalPoint
+                (
+                    meshToPatchPoint,
+                    meshPointA
+                );
+                label localB = meshToLocalPoint
+                (
+                    meshToPatchPoint,
+                    meshPointB
+                );
+
+                // Do we already have shared point for pointA?
+                Map<label>::iterator fndA = localToSharedPoint.find(localA);
+                Map<label>::iterator fndB = localToSharedPoint.find(localB);
+
+                if (fndA != localToSharedPoint.end())
                 {
-                    label meshPointA = pp.meshPoints()[e[0]];
-                    label meshPointB = pp.meshPoints()[e[1]];
-
-                    label localA = meshToLocalPoint
-                    (
-                        meshToPatchPoint,
-                        meshPointA
-                    );
-                    label localB = meshToLocalPoint
-                    (
-                        meshToPatchPoint,
-                        meshPointB
-                    );
-
-                    // Do we already have shared point for pointA?
-                    Map<label>::iterator fndA = localToSharedPoint.find(localA);
-                    Map<label>::iterator fndB = localToSharedPoint.find(localB);
-
-                    if (fndA != localToSharedPoint.end())
+                    if (fndB != localToSharedPoint.end())
                     {
-                        if (fndB != localToSharedPoint.end())
+                        if (fndA() != fndB())
                         {
-                            if (fndA() != fndB())
-                            {
-                                FatalErrorIn
-                                (
-                                    "globalPoints::receiveSharedPoints(..)"
-                                )   << "On patch " << pp.name()
-                                    << " connected points " << meshPointA
-                                    << ' ' << mesh_.points()[meshPointA]
-                                    << " and " << meshPointB
-                                    << ' ' << mesh_.points()[meshPointB]
-                                    << " are mapped to different shared"
-                                    << " points: "
-                                    << fndA() << " and " << fndB()
-                                    << abort(FatalError);
-                            }
-                        }
-                        else
-                        {
-                            // No shared point yet for B.
-                            label sharedPointI = fndA();
-
-                            // Store shared point for pointB
-                            label sharedI = meshToShared[localB];
-
-                            sharedPointAddr_[sharedI] = sharedPointI;
-                            sharedPointLabels_[sharedI] = localB;
-                            changedIndices.append(sharedI);
+                            FatalErrorIn
+                            (
+                                "globalPoints::receiveSharedPoints(..)"
+                            )   << "On patch " << pp.name()
+                                << " connected points " << meshPointA
+                                << ' ' << mesh_.points()[meshPointA]
+                                << " and " << meshPointB
+                                << ' ' << mesh_.points()[meshPointB]
+                                << " are mapped to different shared"
+                                << " points: "
+                                << fndA() << " and " << fndB()
+                                << abort(FatalError);
                         }
                     }
                     else
                     {
-                        // No shared point yet for A.
-                        if (fndB != localToSharedPoint.end())
-                        {
-                            label sharedPointI = fndB();
+                        // No shared point yet for B.
+                        label sharedPointI = fndA();
 
-                            // Store shared point for pointA
-                            label sharedI = meshToShared[localA];
+                        // Store shared point for pointB
+                        label sharedI = meshToShared[localB];
 
-                            sharedPointAddr_[sharedI] = sharedPointI;
-                            sharedPointLabels_[sharedI] = localA;
-                            changedIndices.append(sharedI);
-                        }
+                        sharedPointAddr_[sharedI] = sharedPointI;
+                        sharedPointLabels_[sharedI] = localB;
+                        changedIndices.append(sharedI);
+                    }
+                }
+                else
+                {
+                    // No shared point yet for A.
+                    if (fndB != localToSharedPoint.end())
+                    {
+                        label sharedPointI = fndB();
+
+                        // Store shared point for pointA
+                        label sharedI = meshToShared[localA];
+
+                        sharedPointAddr_[sharedI] = sharedPointI;
+                        sharedPointLabels_[sharedI] = localA;
+                        changedIndices.append(sharedI);
                     }
                 }
             }
@@ -1241,51 +1155,25 @@ void Foam::globalPoints::receiveSharedPoints
 }
 
 
-Foam::edgeList Foam::globalPoints::coupledPoints(const cyclicPolyPatch& pp)
+Foam::labelList Foam::globalPoints::reverseMeshPoints
+(
+    const cyclicPolyPatch& pp
+)
 {
-    // Look at cyclic patch as two halves, A and B.
-    // Now all we know is that relative face index in halfA is same
-    // as coupled face in halfB and also that the 0th vertex
-    // corresponds.
+    const cyclicPolyPatch& nbrPatch = pp.neighbPatch();
 
-    // From halfA point to halfB or -1.
-    labelList coupledPoint(pp.nPoints(), -1);
+    faceList masterFaces(nbrPatch.size());
 
-    for (label patchFaceA = 0; patchFaceA < pp.size()/2; patchFaceA++)
+    forAll (nbrPatch, faceI)
     {
-        const face& fA = pp.localFaces()[patchFaceA];
-
-        forAll(fA, indexA)
-        {
-            label patchPointA = fA[indexA];
-
-            if (coupledPoint[patchPointA] == -1)
-            {
-                const face& fB = pp.localFaces()[patchFaceA + pp.size()/2];
-
-                label indexB = (fB.size() - indexA) % fB.size();
-
-                coupledPoint[patchPointA] = fB[indexB];
-            }
-        }
+        masterFaces[faceI] = nbrPatch[faceI].reverseFace();
     }
 
-    edgeList connected(pp.nPoints());
-
-    // Extract coupled points.
-    label connectedI = 0;
-
-    forAll(coupledPoint, i)
-    {
-        if (coupledPoint[i] != -1)
-        {
-            connected[connectedI++] = edge(i, coupledPoint[i]);
-        }
-    }
-
-    connected.setSize(connectedI);
-
-    return connected;
+    return primitiveFacePatch
+    (
+        masterFaces,
+        nbrPatch.points()
+    ).meshPoints();
 }
 
 

src/OpenFOAM/meshes/polyMesh/globalMeshData/globalPoints.H

@@ -158,10 +158,6 @@ class globalPoints
 
     // Private Member Functions
 
-        //- Return per point collocated status
-        static PackedBoolList collocatedPoints(const coupledPolyPatch&);
-
-
         // Wrappers around global point numbering to add collocated bit
 
             //- Convert into globalIndices and add collocated bit
@@ -300,9 +296,8 @@ class globalPoints
             DynamicList<label>&
         );
 
-        //- Should move into cyclicPolyPatch ordering problem
-        //  keeps on giving problems.
-        static edgeList coupledPoints(const cyclicPolyPatch&);
+        //- Return mesh points of other side in same order as my meshPoints.
+        static labelList reverseMeshPoints(const cyclicPolyPatch&);
 
         //- Do all calculations.
         void calculateSharedPoints

src/OpenFOAM/meshes/polyMesh/mapPolyMesh/mapDistribute/mapDistribute.C

@@ -74,7 +74,7 @@ Foam::List<Foam::labelPair> Foam::mapDistribute::schedule
             slave++
         )
         {
-            IPstream fromSlave(Pstream::blocking, slave);
+            IPstream fromSlave(Pstream::scheduled, slave);
             List<labelPair> nbrData(fromSlave);
 
             forAll(nbrData, i)
@@ -95,18 +95,18 @@ Foam::List<Foam::labelPair> Foam::mapDistribute::schedule
             slave++
         )
         {
-            OPstream toSlave(Pstream::blocking, slave);
+            OPstream toSlave(Pstream::scheduled, slave);
             toSlave << allComms;
         }
     }
     else
     {
         {
-            OPstream toMaster(Pstream::blocking, Pstream::masterNo());
+            OPstream toMaster(Pstream::scheduled, Pstream::masterNo());
             toMaster << allComms;
         }
         {
-            IPstream fromMaster(Pstream::blocking, Pstream::masterNo());
+            IPstream fromMaster(Pstream::scheduled, Pstream::masterNo());
             fromMaster >> allComms;
         }
     }
@@ -595,6 +595,7 @@ void Foam::mapDistribute::compact(const boolList& elemIsUsed)
 
     // Send elemIsUsed field to neighbour. Use nonblocking code from
     // mapDistribute but in reverse order.
+    if (Pstream::parRun())
     {
         List<boolList> sendFields(Pstream::nProcs());
 

src/OpenFOAM/meshes/polyMesh/mapPolyMesh/mapDistribute/mapDistributeTemplates.C

@@ -41,6 +41,30 @@ void Foam::mapDistribute::distribute
     List<T>& field
 )
 {
+    if (!Pstream::parRun())
+    {
+        // Do only me to me.
+
+        const labelList& mySubMap = subMap[Pstream::myProcNo()];
+
+        List<T> subField(mySubMap.size());
+        forAll(mySubMap, i)
+        {
+            subField[i] = field[mySubMap[i]];
+        }
+        
+        // Receive sub field from myself (subField)
+        const labelList& map = constructMap[Pstream::myProcNo()];
+
+        field.setSize(constructSize);
+
+        forAll(map, i)
+        {
+            field[map[i]] = subField[i];
+        }
+        return;
+    }
+
     if (commsType == Pstream::blocking)
     {
         // Since buffered sending can reuse the field to collect the
@@ -406,6 +430,30 @@ void Foam::mapDistribute::distribute
     const T& nullValue
 )
 {
+    if (!Pstream::parRun())
+    {
+        // Do only me to me.
+
+        const labelList& mySubMap = subMap[Pstream::myProcNo()];
+
+        List<T> subField(mySubMap.size());
+        forAll(mySubMap, i)
+        {
+            subField[i] = field[mySubMap[i]];
+        }
+        
+        // Receive sub field from myself (subField)
+        const labelList& map = constructMap[Pstream::myProcNo()];
+
+        field.setSize(constructSize);
+
+        forAll(map, i)
+        {
+            field[map[i]] = subField[i];
+        }
+        return;
+    }
+
     if (commsType == Pstream::blocking)
     {
         // Since buffered sending can reuse the field to collect the

src/OpenFOAM/meshes/polyMesh/polyMesh.C

@@ -717,6 +717,7 @@ void Foam::polyMesh::resetPrimitives
                 "    const Xfer<labelList>& neighbour,\n"
                 "    const labelList& patchSizes,\n"
                 "    const labelList& patchStarts\n"
+                "    const bool validBoundary\n"
                 ")\n"
             )   << "Face " << faceI << " contains vertex labels out of range: "
                 << curFace << " Max point index = " << points_.size()
@@ -759,9 +760,9 @@ void Foam::polyMesh::resetPrimitives
                 "    const Xfer<labelList>& neighbour,\n"
                 "    const labelList& patchSizes,\n"
                 "    const labelList& patchStarts\n"
+                "    const bool validBoundary\n"
                 ")\n"
-            )
-                << "no points or no cells in mesh" << endl;
+            )   << "no points or no cells in mesh" << endl;
         }
     }
 }

src/OpenFOAM/meshes/polyMesh/polyMesh.H

@@ -193,6 +193,19 @@ private:
                 const label patchID
             ) const;
 
+            void setTopology
+            (
+                const cellShapeList& cellsAsShapes,
+                const faceListList& boundaryFaces,
+                const wordList& boundaryPatchNames,
+                labelList& patchSizes,
+                labelList& patchStarts,
+                label& defaultPatchStart,
+                label& nFaces,
+                cellList& cells
+            );
+
+
 
 public:
 
@@ -255,6 +268,20 @@ public:
             const bool syncPar = true
         );
 
+        //- Construct from cell shapes with patch information in dictionary
+        //  format.
+        polyMesh
+        (
+            const IOobject& io,
+            const Xfer<pointField>& points,
+            const cellShapeList& shapes,
+            const faceListList& boundaryFaces,
+            const PtrList<dictionary>& boundaryDicts,
+            const word& defaultBoundaryPatchName,
+            const word& defaultBoundaryPatchType,
+            const bool syncPar = true
+        );
+
 
     //- Destructor
     virtual ~polyMesh();
@@ -442,8 +469,6 @@ public:
             //- Reset mesh primitive data. Assumes all patch info correct
             //  (so does e.g. parallel communication). If not use
             //  validBoundary=false
-            //  (still assumes patchStarts[0] = nInternalFaces and last
-            //  patch ends at nActiveFaces) and change patches with addPatches.
             void resetPrimitives
             (
                 const Xfer<pointField>& points,

src/OpenFOAM/meshes/polyMesh/polyMeshFromShapeMesh.C

@@ -132,6 +132,291 @@ Foam::labelList Foam::polyMesh::facePatchFaceCells
 }
 
 
+//- Set faces_, calculate cells and patchStarts.
+void Foam::polyMesh::setTopology
+(
+    const cellShapeList& cellsAsShapes,
+    const faceListList& boundaryFaces,
+    const wordList& boundaryPatchNames,
+    labelList& patchSizes,
+    labelList& patchStarts,
+    label& defaultPatchStart,
+    label& nFaces,
+    cellList& cells
+)
+{
+    // Calculate the faces of all cells
+    // Initialise maximum possible numer of mesh faces to 0
+    label maxFaces = 0;
+
+    // Set up a list of face shapes for each cell
+    faceListList cellsFaceShapes(cellsAsShapes.size());
+    cells.setSize(cellsAsShapes.size());
+
+    forAll(cellsFaceShapes, cellI)
+    {
+        cellsFaceShapes[cellI] = cellsAsShapes[cellI].faces();
+
+        cells[cellI].setSize(cellsFaceShapes[cellI].size());
+
+        // Initialise cells to -1 to flag undefined faces
+        static_cast<labelList&>(cells[cellI]) = -1;
+
+        // Count maximum possible numer of mesh faces
+        maxFaces += cellsFaceShapes[cellI].size();
+    }
+
+    // Set size of faces array to maximum possible number of mesh faces
+    faces_.setSize(maxFaces);
+
+    // Initialise number of faces to 0
+    nFaces = 0;
+
+    // set reference to point-cell addressing
+    labelListList PointCells = cellShapePointCells(cellsAsShapes);
+
+    bool found = false;
+
+    forAll(cells, cellI)
+    {
+        // Note:
+        // Insertion cannot be done in one go as the faces need to be
+        // added into the list in the increasing order of neighbour
+        // cells.  Therefore, all neighbours will be detected first
+        // and then added in the correct order.
+
+        const faceList& curFaces = cellsFaceShapes[cellI];
+
+        // Record the neighbour cell
+        labelList neiCells(curFaces.size(), -1);
+
+        // Record the face of neighbour cell
+        labelList faceOfNeiCell(curFaces.size(), -1);
+
+        label nNeighbours = 0;
+
+        // For all faces ...
+        forAll(curFaces, faceI)
+        {
+            // Skip faces that have already been matched
+            if (cells[cellI][faceI] >= 0) continue;
+
+            found = false;
+
+            const face& curFace = curFaces[faceI];
+
+            // Get the list of labels
+            const labelList& curPoints = curFace;
+
+            // For all points
+            forAll(curPoints, pointI)
+            {
+                // dGget the list of cells sharing this point
+                const labelList& curNeighbours =
+                    PointCells[curPoints[pointI]];
+
+                // For all neighbours
+                forAll(curNeighbours, neiI)
+                {
+                    label curNei = curNeighbours[neiI];
+
+                    // Reject neighbours with the lower label
+                    if (curNei > cellI)
+                    {
+                        // Get the list of search faces
+                        const faceList& searchFaces = cellsFaceShapes[curNei];
+
+                        forAll(searchFaces, neiFaceI)
+                        {
+                            if (searchFaces[neiFaceI] == curFace)
+                            {
+                                // Match!!
+                                found = true;
+
+                                // Record the neighbour cell and face
+                                neiCells[faceI] = curNei;
+                                faceOfNeiCell[faceI] = neiFaceI;
+                                nNeighbours++;
+
+                                break;
+                            }
+                        }
+                        if (found) break;
+                    }
+                    if (found) break;
+                }
+                if (found) break;
+            } // End of current points
+        }  // End of current faces
+
+        // Add the faces in the increasing order of neighbours
+        for (label neiSearch = 0; neiSearch < nNeighbours; neiSearch++)
+        {
+            // Find the lowest neighbour which is still valid
+            label nextNei = -1;
+            label minNei = cells.size();
+
+            forAll(neiCells, ncI)
+            {
+                if (neiCells[ncI] > -1 && neiCells[ncI] < minNei)
+                {
+                    nextNei = ncI;
+                    minNei = neiCells[ncI];
+                }
+            }
+
+            if (nextNei > -1)
+            {
+                // Add the face to the list of faces
+                faces_[nFaces] = curFaces[nextNei];
+
+                // Set cell-face and cell-neighbour-face to current face label
+                cells[cellI][nextNei] = nFaces;
+                cells[neiCells[nextNei]][faceOfNeiCell[nextNei]] = nFaces;
+
+                // Stop the neighbour from being used again
+                neiCells[nextNei] = -1;
+
+                // Increment number of faces counter
+                nFaces++;
+            }
+            else
+            {
+                FatalErrorIn
+                (
+                    "polyMesh::setTopology\n"
+                    "(\n"
+                    "    const cellShapeList& cellsAsShapes,\n"
+                    "    const faceListList& boundaryFaces,\n"
+                    "    const wordList& boundaryPatchNames,\n"
+                    "    labelList& patchSizes,\n"
+                    "    labelList& patchStarts,\n"
+                    "    label& defaultPatchStart,\n"
+                    "    label& nFaces,\n"
+                    "    cellList& cells\n"
+                    ")"
+                )   << "Error in internal face insertion"
+                    << abort(FatalError);
+            }
+        }
+    }
+
+    // Do boundary faces
+
+    patchSizes.setSize(boundaryFaces.size(), -1);
+    patchStarts.setSize(boundaryFaces.size(), -1);
+
+    forAll(boundaryFaces, patchI)
+    {
+        const faceList& patchFaces = boundaryFaces[patchI];
+
+        labelList curPatchFaceCells =
+            facePatchFaceCells
+            (
+                patchFaces,
+                PointCells,
+                cellsFaceShapes,
+                patchI
+            );
+
+        // Grab the start label
+        label curPatchStart = nFaces;
+
+        forAll(patchFaces, faceI)
+        {
+            const face& curFace = patchFaces[faceI];
+
+            const label cellInside = curPatchFaceCells[faceI];
+
+            faces_[nFaces] = curFace;
+
+            // get faces of the cell inside
+            const faceList& facesOfCellInside = cellsFaceShapes[cellInside];
+
+            bool found = false;
+
+            forAll(facesOfCellInside, cellFaceI)
+            {
+                if (facesOfCellInside[cellFaceI] == curFace)
+                {
+                    if (cells[cellInside][cellFaceI] >= 0)
+                    {
+                        FatalErrorIn
+                        (
+                            "polyMesh::setTopology\n"
+                            "(\n"
+                            "    const cellShapeList& cellsAsShapes,\n"
+                            "    const faceListList& boundaryFaces,\n"
+                            "    const wordList& boundaryPatchNames,\n"
+                            "    labelList& patchSizes,\n"
+                            "    labelList& patchStarts,\n"
+                            "    label& defaultPatchStart,\n"
+                            "    label& nFaces,\n"
+                            "    cellList& cells\n"
+                            ")"
+                        )   << "Trying to specify a boundary face " << curFace
+                            << " on the face on cell " << cellInside
+                            << " which is either an internal face or already "
+                            << "belongs to some other patch.  This is face "
+                            << faceI << " of patch "
+                            << patchI << " named "
+                            << boundaryPatchNames[patchI] << "."
+                            << abort(FatalError);
+                    }
+
+                    found = true;
+
+                    cells[cellInside][cellFaceI] = nFaces;
+
+                    break;
+                }
+            }
+
+            if (!found)
+            {
+                FatalErrorIn("polyMesh::polyMesh(... construct from shapes...)")
+                    << "face " << faceI << " of patch " << patchI
+                    << " does not seem to belong to cell " << cellInside
+                    << " which, according to the addressing, "
+                    << "should be next to it."
+                    << abort(FatalError);
+            }
+
+            // increment the counter of faces
+            nFaces++;
+        }
+
+        patchSizes[patchI] = nFaces - curPatchStart;
+        patchStarts[patchI] = curPatchStart;
+    }
+
+    // Grab "non-existing" faces and put them into a default patch
+
+    defaultPatchStart = nFaces;
+
+    forAll(cells, cellI)
+    {
+        labelList& curCellFaces = cells[cellI];
+
+        forAll(curCellFaces, faceI)
+        {
+            if (curCellFaces[faceI] == -1) // "non-existent" face
+            {
+                curCellFaces[faceI] = nFaces;
+                faces_[nFaces] = cellsFaceShapes[cellI][faceI];
+
+                nFaces++;
+            }
+        }
+    }
+
+    // Reset the size of the face list
+    faces_.setSize(nFaces);
+
+    return ;
+}
+
+
 Foam::polyMesh::polyMesh
 (
     const IOobject& io,
@@ -273,271 +558,23 @@ Foam::polyMesh::polyMesh
     // Remove all of the old mesh files if they exist
     removeFiles(instance());
 
-    // Calculate the faces of all cells
-    // Initialise maximum possible numer of mesh faces to 0
-    label maxFaces = 0;
-
-    // Set up a list of face shapes for each cell
-    faceListList cellsFaceShapes(cellsAsShapes.size());
-    cellList cells(cellsAsShapes.size());
-
-    forAll(cellsFaceShapes, cellI)
-    {
-        cellsFaceShapes[cellI] = cellsAsShapes[cellI].faces();
-
-        cells[cellI].setSize(cellsFaceShapes[cellI].size());
-
-        // Initialise cells to -1 to flag undefined faces
-        static_cast<labelList&>(cells[cellI]) = -1;
-
-        // Count maximum possible numer of mesh faces
-        maxFaces += cellsFaceShapes[cellI].size();
-    }
-
-    // Set size of faces array to maximum possible number of mesh faces
-    faces_.setSize(maxFaces);
-
-    // Initialise number of faces to 0
-    label nFaces = 0;
-
-    // set reference to point-cell addressing
-    labelListList PointCells = cellShapePointCells(cellsAsShapes);
-
-    bool found = false;
-
-    forAll(cells, cellI)
-    {
-        // Note:
-        // Insertion cannot be done in one go as the faces need to be
-        // added into the list in the increasing order of neighbour
-        // cells.  Therefore, all neighbours will be detected first
-        // and then added in the correct order.
-
-        const faceList& curFaces = cellsFaceShapes[cellI];
-
-        // Record the neighbour cell
-        labelList neiCells(curFaces.size(), -1);
-
-        // Record the face of neighbour cell
-        labelList faceOfNeiCell(curFaces.size(), -1);
-
-        label nNeighbours = 0;
-
-        // For all faces ...
-        forAll(curFaces, faceI)
-        {
-            // Skip faces that have already been matched
-            if (cells[cellI][faceI] >= 0) continue;
-
-            found = false;
-
-            const face& curFace = curFaces[faceI];
-
-            // Get the list of labels
-            const labelList& curPoints = curFace;
-
-            // For all points
-            forAll(curPoints, pointI)
-            {
-                // dGget the list of cells sharing this point
-                const labelList& curNeighbours =
-                    PointCells[curPoints[pointI]];
-
-                // For all neighbours
-                forAll(curNeighbours, neiI)
-                {
-                    label curNei = curNeighbours[neiI];
-
-                    // Reject neighbours with the lower label
-                    if (curNei > cellI)
-                    {
-                        // Get the list of search faces
-                        const faceList& searchFaces = cellsFaceShapes[curNei];
-
-                        forAll(searchFaces, neiFaceI)
-                        {
-                            if (searchFaces[neiFaceI] == curFace)
-                            {
-                                // Match!!
-                                found = true;
-
-                                // Record the neighbour cell and face
-                                neiCells[faceI] = curNei;
-                                faceOfNeiCell[faceI] = neiFaceI;
-                                nNeighbours++;
-
-                                break;
-                            }
-                        }
-                        if (found) break;
-                    }
-                    if (found) break;
-                }
-                if (found) break;
-            } // End of current points
-        }  // End of current faces
-
-        // Add the faces in the increasing order of neighbours
-        for (label neiSearch = 0; neiSearch < nNeighbours; neiSearch++)
-        {
-            // Find the lowest neighbour which is still valid
-            label nextNei = -1;
-            label minNei = cells.size();
-
-            forAll(neiCells, ncI)
-            {
-                if (neiCells[ncI] > -1 && neiCells[ncI] < minNei)
-                {
-                    nextNei = ncI;
-                    minNei = neiCells[ncI];
-                }
-            }
-
-            if (nextNei > -1)
-            {
-                // Add the face to the list of faces
-                faces_[nFaces] = curFaces[nextNei];
-
-                // Set cell-face and cell-neighbour-face to current face label
-                cells[cellI][nextNei] = nFaces;
-                cells[neiCells[nextNei]][faceOfNeiCell[nextNei]] = nFaces;
-
-                // Stop the neighbour from being used again
-                neiCells[nextNei] = -1;
-
-                // Increment number of faces counter
-                nFaces++;
-            }
-            else
-            {
-                FatalErrorIn
-                (
-                    "polyMesh::polyMesh\n"
-                    "(\n"
-                    "    const IOobject&,\n"
-                    "    const Xfer<pointField>&,\n"
-                    "    const cellShapeList& cellsAsShapes,\n"
-                    "    const faceListList& boundaryFaces,\n"
-                    "    const wordList& boundaryPatchTypes,\n"
-                    "    const wordList& boundaryPatchNames,\n"
-                    "    const word& defaultBoundaryPatchType\n"
-                    ")"
-                )   << "Error in internal face insertion"
-                    << abort(FatalError);
-            }
-        }
-    }
-
-    // Do boundary faces
-
-    labelList patchSizes(boundaryFaces.size(), -1);
-    labelList patchStarts(boundaryFaces.size(), -1);
-
-    forAll(boundaryFaces, patchI)
-    {
-        const faceList& patchFaces = boundaryFaces[patchI];
-
-        labelList curPatchFaceCells =
-            facePatchFaceCells
-            (
-                patchFaces,
-                PointCells,
-                cellsFaceShapes,
-                patchI
-            );
-
-        // Grab the start label
-        label curPatchStart = nFaces;
-
-        forAll(patchFaces, faceI)
-        {
-            const face& curFace = patchFaces[faceI];
-
-            const label cellInside = curPatchFaceCells[faceI];
-
-            faces_[nFaces] = curFace;
-
-            // get faces of the cell inside
-            const faceList& facesOfCellInside = cellsFaceShapes[cellInside];
-
-            bool found = false;
-
-            forAll(facesOfCellInside, cellFaceI)
-            {
-                if (facesOfCellInside[cellFaceI] == curFace)
-                {
-                    if (cells[cellInside][cellFaceI] >= 0)
-                    {
-                        FatalErrorIn
-                        (
-                            "polyMesh::polyMesh\n"
-                            "(\n"
-                            "    const IOobject&,\n"
-                            "    const Xfer<pointField>&,\n"
-                            "    const cellShapeList& cellsAsShapes,\n"
-                            "    const faceListList& boundaryFaces,\n"
-                            "    const wordList& boundaryPatchTypes,\n"
-                            "    const wordList& boundaryPatchNames,\n"
-                            "    const word& defaultBoundaryPatchType\n"
-                            ")"
-                        )   << "Trying to specify a boundary face " << curFace
-                            << " on the face on cell " << cellInside
-                            << " which is either an internal face or already "
-                            << "belongs to some other patch.  This is face "
-                            << faceI << " of patch "
-                            << patchI << " named "
-                            << boundaryPatchNames[patchI] << "."
-                            << abort(FatalError);
-                    }
-
-                    found = true;
-
-                    cells[cellInside][cellFaceI] = nFaces;
-
-                    break;
-                }
-            }
-
-            if (!found)
-            {
-                FatalErrorIn("polyMesh::polyMesh(... construct from shapes...)")
-                    << "face " << faceI << " of patch " << patchI
-                    << " does not seem to belong to cell " << cellInside
-                    << " which, according to the addressing, "
-                    << "should be next to it."
-                    << abort(FatalError);
-            }
-
-            // increment the counter of faces
-            nFaces++;
-        }
-
-        patchSizes[patchI] = nFaces - curPatchStart;
-        patchStarts[patchI] = curPatchStart;
-    }
-
-    // Grab "non-existing" faces and put them into a default patch
-
-    label defaultPatchStart = nFaces;
-
-    forAll(cells, cellI)
-    {
-        labelList& curCellFaces = cells[cellI];
-
-        forAll(curCellFaces, faceI)
-        {
-            if (curCellFaces[faceI] == -1) // "non-existent" face
-            {
-                curCellFaces[faceI] = nFaces;
-                faces_[nFaces] = cellsFaceShapes[cellI][faceI];
-
-                nFaces++;
-            }
-        }
-    }
-
-    // Reset the size of the face list
-    faces_.setSize(nFaces);
+    // Calculate faces and cells
+    labelList patchSizes;
+    labelList patchStarts;
+    label defaultPatchStart;
+    label nFaces;
+    cellList cells;
+    setTopology
+    (
+        cellsAsShapes,
+        boundaryFaces,
+        boundaryPatchNames,
+        patchSizes,
+        patchStarts,
+        defaultPatchStart,
+        nFaces,
+        cells
+    );
 
     // Warning: Patches can only be added once the face list is
     // completed, as they hold a subList of the face list
@@ -654,4 +691,275 @@ Foam::polyMesh::polyMesh
 }
 
 
+Foam::polyMesh::polyMesh
+(
+    const IOobject& io,
+    const Xfer<pointField>& points,
+    const cellShapeList& cellsAsShapes,
+    const faceListList& boundaryFaces,
+    const PtrList<dictionary>& boundaryDicts,
+    const word& defaultBoundaryPatchName,
+    const word& defaultBoundaryPatchType,
+    const bool syncPar
+)
+:
+    objectRegistry(io),
+    primitiveMesh(),
+    points_
+    (
+        IOobject
+        (
+            "points",
+            instance(),
+            meshSubDir,
+            *this,
+            IOobject::NO_READ,
+            IOobject::AUTO_WRITE
+        ),
+        points
+    ),
+    faces_
+    (
+        IOobject
+        (
+            "faces",
+            instance(),
+            meshSubDir,
+            *this,
+            IOobject::NO_READ,
+            IOobject::AUTO_WRITE
+        ),
+        0
+    ),
+    owner_
+    (
+        IOobject
+        (
+            "owner",
+            instance(),
+            meshSubDir,
+            *this,
+            IOobject::NO_READ,
+            IOobject::AUTO_WRITE
+        ),
+        0
+    ),
+    neighbour_
+    (
+        IOobject
+        (
+            "neighbour",
+            instance(),
+            meshSubDir,
+            *this,
+            IOobject::NO_READ,
+            IOobject::AUTO_WRITE
+        ),
+        0
+    ),
+    clearedPrimitives_(false),
+    boundary_
+    (
+        IOobject
+        (
+            "boundary",
+            instance(),
+            meshSubDir,
+            *this,
+            IOobject::NO_READ,
+            IOobject::AUTO_WRITE
+        ),
+        *this,
+        boundaryFaces.size() + 1    // add room for a default patch
+    ),
+    bounds_(points_, syncPar),
+    geometricD_(Vector<label>::zero),
+    solutionD_(Vector<label>::zero),
+    pointZones_
+    (
+        IOobject
+        (
+            "pointZones",
+            instance(),
+            meshSubDir,
+            *this,
+            IOobject::NO_READ,
+            IOobject::NO_WRITE
+        ),
+        *this,
+        0
+    ),
+    faceZones_
+    (
+        IOobject
+        (
+            "faceZones",
+            instance(),
+            meshSubDir,
+            *this,
+            IOobject::NO_READ,
+            IOobject::NO_WRITE
+        ),
+        *this,
+        0
+    ),
+    cellZones_
+    (
+        IOobject
+        (
+            "cellZones",
+            instance(),
+            meshSubDir,
+            *this,
+            IOobject::NO_READ,
+            IOobject::NO_WRITE
+        ),
+        *this,
+        0
+    ),
+    globalMeshDataPtr_(NULL),
+    moving_(false),
+    curMotionTimeIndex_(time().timeIndex()),
+    oldPointsPtr_(NULL)
+{
+    if (debug)
+    {
+        Info<<"Constructing polyMesh from cell and boundary shapes." << endl;
+    }
+
+    // Remove all of the old mesh files if they exist
+    removeFiles(instance());
+
+    wordList boundaryPatchNames(boundaryDicts.size());
+    forAll(boundaryDicts, patchI)
+    {
+        boundaryDicts[patchI].lookup("name") >> boundaryPatchNames[patchI];
+    }
+
+    // Calculate faces and cells
+    labelList patchSizes;
+    labelList patchStarts;
+    label defaultPatchStart;
+    label nFaces;
+    cellList cells;
+    setTopology
+    (
+        cellsAsShapes,
+        boundaryFaces,
+        boundaryPatchNames,
+        patchSizes,
+        patchStarts,
+        defaultPatchStart,
+        nFaces,
+        cells
+    );
+
+    // Warning: Patches can only be added once the face list is
+    // completed, as they hold a subList of the face list
+    forAll (boundaryFaces, patchI)
+    {
+        dictionary patchDict(boundaryDicts[patchI]);
+
+        patchDict.set("nFaces", patchSizes[patchI]);
+        patchDict.set("startFace", patchStarts[patchI]);
+
+        // add the patch to the list
+        boundary_.set
+        (
+            patchI,
+            polyPatch::New
+            (
+                boundaryPatchNames[patchI],
+                patchDict,
+                patchI,
+                boundary_
+            )
+        );
+    }
+
+    label nAllPatches = boundaryFaces.size();
+
+    if (nFaces > defaultPatchStart)
+    {
+        WarningIn("polyMesh::polyMesh(... construct from shapes...)")
+            << "Found " << nFaces - defaultPatchStart
+            << " undefined faces in mesh; adding to default patch." << endl;
+
+        // Check if there already exists a defaultFaces patch as last patch
+        // and reuse it.
+        label patchI = findIndex(boundaryPatchNames, defaultBoundaryPatchName);
+
+        if (patchI != -1)
+        {
+            if (patchI != boundaryFaces.size()-1 || boundary_[patchI].size())
+            {
+                FatalErrorIn("polyMesh::polyMesh(... construct from shapes...)")
+                    << "Default patch " << boundary_[patchI].name()
+                    << " already has faces in it or is not"
+                    << " last in list of patches." << exit(FatalError);
+            }
+
+            WarningIn("polyMesh::polyMesh(... construct from shapes...)")
+                << "Reusing existing patch " << patchI
+                << " for undefined faces." << endl;
+
+            boundary_.set
+            (
+                patchI,
+                polyPatch::New
+                (
+                    boundary_[patchI].type(),
+                    boundary_[patchI].name(),
+                    nFaces - defaultPatchStart,
+                    defaultPatchStart,
+                    patchI,
+                    boundary_
+                )
+            );
+        }
+        else
+        {
+            boundary_.set
+            (
+                nAllPatches,
+                polyPatch::New
+                (
+                    defaultBoundaryPatchType,
+                    defaultBoundaryPatchName,
+                    nFaces - defaultPatchStart,
+                    defaultPatchStart,
+                    boundary_.size() - 1,
+                    boundary_
+                )
+            );
+
+            nAllPatches++;
+        }
+    }
+
+    // Reset the size of the boundary
+    boundary_.setSize(nAllPatches);
+
+    // Set the primitive mesh
+    initMesh(cells);
+
+    if (syncPar)
+    {
+        // Calculate topology for the patches (processor-processor comms etc.)
+        boundary_.updateMesh();
+
+        // Calculate the geometry for the patches (transformation tensors etc.)
+        boundary_.calcGeometry();
+    }
+
+    if (debug)
+    {
+        if (checkMesh())
+        {
+            Info << "Mesh OK" << endl;
+        }
+    }
+}
+
+
 // ************************************************************************* //

src/OpenFOAM/meshes/polyMesh/polyPatches/basic/coupled/coupledPolyPatch.C

@@ -111,23 +111,6 @@ void Foam::coupledPolyPatch::writeOBJ
 }
 
 
-Foam::pointField Foam::coupledPolyPatch::calcFaceCentres
-(
-    const UList<face>& faces,
-    const pointField& points
-)
-{
-    pointField ctrs(faces.size());
-
-    forAll(faces, faceI)
-    {
-        ctrs[faceI] = faces[faceI].centre(points);
-    }
-
-    return ctrs;
-}
-
-
 Foam::pointField Foam::coupledPolyPatch::getAnchorPoints
 (
     const UList<face>& faces,
@@ -145,43 +128,6 @@ Foam::pointField Foam::coupledPolyPatch::getAnchorPoints
 }
 
 
-bool Foam::coupledPolyPatch::inPatch
-(
-    const labelList& oldToNew,
-    const label oldFaceI
-) const
-{
-    label faceI = oldToNew[oldFaceI];
-
-    return faceI >= start() && faceI < start()+size();
-}
-
-
-Foam::label Foam::coupledPolyPatch::whichPatch
-(
-    const labelList& patchStarts,
-    const label faceI
-)
-{
-    forAll(patchStarts, patchI)
-    {
-        if (patchStarts[patchI] <= faceI)
-        {
-            if (patchI == patchStarts.size()-1)
-            {
-                return patchI;
-            }
-            else if (patchStarts[patchI+1] > faceI)
-            {
-                return patchI;
-            }
-        }
-    }
-
-    return -1;
-}
-
-
 Foam::scalarField Foam::coupledPolyPatch::calcFaceTol
 (
     const UList<face>& faces,
@@ -266,7 +212,8 @@ void Foam::coupledPolyPatch::calcTransformTensors
         Pout<< "coupledPolyPatch::calcTransformTensors : " << name() << endl
             << "    (half)size:" << Cf.size() << nl
             << "    absTol:" << absTol << nl
-            //<< "    smallDist:" << smallDist << nl
+            << "    smallDist min:" << min(smallDist) << nl
+            << "    smallDist max:" << max(smallDist) << nl
             << "    sum(mag(nf & nr)):" << sum(mag(nf & nr)) << endl;
     }
 
@@ -278,7 +225,7 @@ void Foam::coupledPolyPatch::calcTransformTensors
     // Then the overall error of summing the normals is sqrt(size())*absTol
     // - separation calculation: pass in from the outside an allowable error.
 
-    if (size() == 0)
+    if (Cf.size() == 0)
     {
         // Dummy geometry.
         separation_.setSize(0);

src/OpenFOAM/meshes/polyMesh/polyPatches/basic/coupled/coupledPolyPatch.H

@@ -38,6 +38,7 @@ SourceFiles
 #define coupledPolyPatch_H
 
 #include "polyPatch.H"
+#include "diagTensorField.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
@@ -133,13 +134,6 @@ protected:
             label& vertI
         );
 
-        //- Calculate face centres
-        static pointField calcFaceCentres
-        (
-            const UList<face>&,
-            const pointField&
-        );
-
         //- Get f[0] for all faces
         static pointField getAnchorPoints
         (
@@ -147,21 +141,6 @@ protected:
             const pointField&
         );
 
-        //- Is face (in old face labels) in current patch?
-        bool inPatch
-        (
-            const labelList& oldToNew,
-            const label oldFaceI
-        ) const;
-
-        //- Given list of starts of patches and a face label determine
-        //  the patch.
-        static label whichPatch
-        (
-            const labelList& patchStarts,
-            const label faceI
-        );
-
         //- Calculate typical tolerance per face. Is currently max distance
         //  from face centre to any of the face vertices.
         static scalarField calcFaceTol
@@ -248,45 +227,67 @@ public:
                 return true;
             }
 
+            //- Does this side own the patch ?
+            virtual bool owner() const = 0;
 
-            //- Are the coupled planes separated
-            bool separated() const
+            //- Does the coupled side own the patch ?
+            virtual bool neighbour() const
+            {
+                return !owner();
+            }
+
+            //- Transform a patch-based position from other side to this side
+            virtual void transformPosition(pointField& l) const = 0;
+
+            //- Are the planes separated.
+            virtual bool separated() const
             {
                 return separation_.size();
             }
 
-            //- Return the offset (distance) vector from one side of the couple
-            //  to the other
-            const vectorField& separation() const
+            //- If the planes are separated the separation vector.
+            virtual const vectorField& separation() const
             {
                 return separation_;
             }
 
-            //- Are the cyclic planes parallel
-            bool parallel() const
+            //- Are the cyclic planes parallel.
+            virtual bool parallel() const
             {
                 return forwardT_.empty();
             }
 
-            //- Return face transformation tensor
-            const tensorField& forwardT() const
+            //- Return face transformation tensor.
+            virtual const tensorField& forwardT() const
             {
                 return forwardT_;
             }
 
-            //- Return neighbour-cell transformation tensor
-            const tensorField& reverseT() const
+            //- Return neighbour-cell transformation tensor.
+            virtual const tensorField& reverseT() const
             {
                 return reverseT_;
             }
 
             //- Are faces collocated. Either size 0,1 or length of patch
-            const boolList& collocated() const
+            virtual const boolList& collocated() const
             {
                 return collocated_;
             }
 
 
+        //- Calculate the patch geometry
+        virtual void calcGeometry
+        (
+            const primitivePatch& referPatch,
+            const UList<point>& thisCtrs,
+            const UList<point>& thisAreas,
+            const UList<point>& thisCc,
+            const UList<point>& nbrCtrs,
+            const UList<point>& nbrAreas,
+            const UList<point>& nbrCc
+        ) = 0;
+
         //- Initialize ordering for primitivePatch. Does not
         //  refer to *this (except for name() and type() etc.)
         virtual void initOrder

src/OpenFOAM/meshes/polyMesh/polyPatches/constraint/cyclic/cyclicPolyPatch.H

@@ -29,11 +29,10 @@ Description
 
     Note: morph patch face ordering uses geometric matching so with the
     following restrictions:
-        -halves should be flat planes.
+        -coupled patches should be flat planes.
         -no rotation in patch plane
 
-    Uses a featureCos to find the two halves (or should be fully
-    disconnected). Uses coupledPolyPatch::calcFaceTol to calculate
+    Uses coupledPolyPatch::calcFaceTol to calculate
     tolerance per face which might need tweaking.
 
     Switch on 'cyclicPolyPatch' debug flag to write .obj files to show
@@ -48,10 +47,9 @@ SourceFiles
 #define cyclicPolyPatch_H
 
 #include "coupledPolyPatch.H"
-#include "SubField.H"
-#include "FixedList.H"
 #include "edgeList.H"
-#include "transform.H"
+#include "polyBoundaryMesh.H"
+#include "diagTensorField.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
@@ -82,18 +80,11 @@ private:
 
     // Private data
 
-        //- List of edges formed from connected points. e[0] is the point on
-        //  the first half of the patch, e[1] the corresponding point on the
-        //  second half.
-        mutable edgeList* coupledPointsPtr_;
+        //- Name of other half
+        const word neighbPatchName_;
 
-        //- List of connected edges. e[0] is the edge on the first half of the
-        //  patch, e[1] the corresponding edge on the second half.
-        mutable edgeList* coupledEdgesPtr_;
-
-        //- Morph:angle between normals of neighbouring faces.
-        //  Used to split cyclic into halves.
-        scalar featureCos_;
+        //- Index of other half
+        mutable label neighbPatchID_;
 
         //- Type of transformation - rotational or translational
         transformType transform_;
@@ -112,60 +103,50 @@ private:
             vector separationVector_;
 
 
+        //- List of edges formed from connected points. e[0] is the point on
+        //  the first half of the patch, e[1] the corresponding point on the
+        //  second half.
+        mutable edgeList* coupledPointsPtr_;
+
+        //- List of connected edges. e[0] is the edge on the first half of the
+        //  patch, e[1] the corresponding edge on the second half.
+        mutable edgeList* coupledEdgesPtr_;
+
+        //- Temporary storage of owner side patch during ordering.
+        mutable autoPtr<primitivePatch> ownerPatchPtr_;
+
+
     // Private Member Functions
 
         //- Find amongst selected faces the one with the largest area
         static label findMaxArea(const pointField&, const faceList&);
 
+        void calcTransforms
+        (
+            const primitivePatch& half0,
+            const UList<point>& half0Ctrs,
+            const UList<point>& half0Areas,
+            const UList<point>& half1Ctrs,
+            const UList<point>& half1Areas
+        );
 
         // Face ordering
 
-            //- Find the two parts of the faces of pp using feature edges.
-            //  Returns true if successfull.
-            bool getGeometricHalves
-            (
-                const primitivePatch&,
-                labelList&,
-                labelList&
-            ) const;
-
             //- Calculate geometric factors of the two halves.
             void getCentresAndAnchors
             (
-                const primitivePatch&,
-                const faceList& half0Faces,
-                const faceList& half1Faces,
+                const primitivePatch& pp0,
+                const primitivePatch& pp1,
 
-                pointField& ppPoints,
                 pointField& half0Ctrs,
                 pointField& half1Ctrs,
                 pointField& anchors0,
                 scalarField& tols
             ) const;
 
-            //- Given matched faces matches the anchor point. Sets faceMap,
-            //  rotation. Returns true if all matched.
-            bool matchAnchors
-            (
-                const bool report,
-                const primitivePatch&,
-                const labelList&,
-                const pointField&,
-                const labelList&,
-                const faceList&,
-                const labelList&,
-                const scalarField&,
-
-                labelList& faceMap,
-                labelList& rotation
-            ) const;
-
             //- For rotational cases, try to find a unique face on each side
             //  of the cyclic.
-            label getConsistentRotationFace
-            (
-                const pointField& faceCentres
-            ) const;
+            label getConsistentRotationFace(const pointField&) const;
 
 
 protected:
@@ -178,9 +159,30 @@ protected:
         //- Initialise the calculation of the patch geometry
         virtual void initGeometry(PstreamBuffers&);
 
+        //- Initialise the calculation of the patch geometry
+        virtual void initGeometry
+        (
+            const primitivePatch& referPatch,
+            UList<point>& nbrCtrs,
+            UList<point>& nbrAreas,
+            UList<point>& nbrCc
+        );
+
         //- Calculate the patch geometry
         virtual void calcGeometry(PstreamBuffers&);
 
+        //- Calculate the patch geometry
+        virtual void calcGeometry
+        (
+            const primitivePatch& referPatch,
+            const UList<point>& thisCtrs,
+            const UList<point>& thisAreas,
+            const UList<point>& thisCc,
+            const UList<point>& nbrCtrs,
+            const UList<point>& nbrAreas,
+            const UList<point>& nbrCc
+        );
+
         //- Initialise the patches for moving points
         virtual void initMovePoints(PstreamBuffers&, const pointField&);
 
@@ -231,7 +233,8 @@ public:
             const polyBoundaryMesh& bm,
             const label index,
             const label newSize,
-            const label newStart
+            const label newStart,
+            const word& neighbPatchName
         );
 
         //- Construct given the original patch and a map
@@ -262,7 +265,15 @@ public:
         {
             return autoPtr<polyPatch>
             (
-                new cyclicPolyPatch(*this, bm, index, newSize, newStart)
+                new cyclicPolyPatch
+                (
+                    *this,
+                    bm,
+                    index,
+                    newSize,
+                    newStart,
+                    neighbPatchName_
+                )
             );
         }
 
@@ -289,103 +300,107 @@ public:
 
     // Member Functions
 
-        //- Return connected points (in patch local point indexing). Demand
-        //  driven calculation. Does primitivePatch::clearOut after calculation!
+        const word& neighbPatchName() const
+        {
+            return neighbPatchName_;
+        }
+
+        //- Neighbour patchID.
+        virtual label neighbPatchID() const
+        {
+            if (neighbPatchID_ == -1)
+            {
+                neighbPatchID_ = this->boundaryMesh().findPatchID
+                (
+                    neighbPatchName_
+                );
+                if (neighbPatchID_ == -1)
+                {
+                    FatalErrorIn("cyclicPolyPatch::neighbPatchID() const")
+                        << "Illegal neighbourPatch name " << neighbPatchName_
+                        << endl << "Valid patch names are "
+                        << this->boundaryMesh().names()
+                        << exit(FatalError);
+                }
+            }
+            return neighbPatchID_;
+        }
+
+        virtual bool owner() const
+        {
+            return index() < neighbPatchID();
+        }
+
+        virtual bool neighbour() const
+        {
+            return !owner();
+        }
+
+        const cyclicPolyPatch& neighbPatch() const
+        {
+            const polyPatch& pp = this->boundaryMesh()[neighbPatchID()];
+            return refCast<const cyclicPolyPatch>(pp);
+        }
+
+        //- Return connected points (from patch local to neighbour patch local)
+        //  Demand driven calculation. Does primitivePatch::clearOut after
+        //  calculation!
         const edgeList& coupledPoints() const;
 
-        //- Return connected edges (in patch local edge indexing). Demand
-        //  driven calculation. Does primitivePatch::clearOut after calculation!
+        //- Return connected edges (from patch local to neighbour patch local).
+        //  Demand driven calculation. Does primitivePatch::clearOut after
+        //  calculation!
         const edgeList& coupledEdges() const;
 
+        //- Transform a patch-based position from other side to this side
+        virtual void transformPosition(pointField& l) const;
 
 
         // Transformation
 
-            vector separation(const label facei) const
-            {
-                if (facei < size()/2)
-                {
-                    return coupledPolyPatch::separation()[0];
-                }
-                else
-                {
-                    return -coupledPolyPatch::separation()[0];
-                }
-            }
+        label transformGlobalFace(const label facei) const
+        {
+            label offset = facei-start();
+            label neighbStart = neighbPatch().start();
 
-            const tensor& transformT(const label facei) const
+            if (offset >= 0 && offset < size())
             {
-                if (facei < size()/2)
-                {
-                    return reverseT()[0];
-                }
-                else
-                {
-                    return forwardT()[0];
-                }
+                return neighbStart+offset;
             }
-
-            template<class T>
-            T transform(const T& t, const label facei) const
+            else
             {
-                if (parallel())
-                {
-                    return t;
-                }
-                else
-                {
-                    return Foam::transform(transformT(facei), t);
-                }
+                FatalErrorIn
+                (
+                    "cyclicPolyPatch::transformGlobalFace(const label) const"
+                )   << "Face " << facei << " not in patch " << name()
+                    << exit(FatalError);
+                return -1;
             }
+        }
 
-            label transformLocalFace(const label facei) const
-            {
-                if (facei < size()/2)
-                {
-                    return facei + size()/2;
-                }
-                else
-                {
-                    return facei - size()/2;
-                }
-            }
+        //- Type of transform
+        transformType transform() const
+        {
+            return transform_;
+        }
 
-            label transformGlobalFace(const label facei) const
-            {
-                if (facei - start() < size()/2)
-                {
-                    return facei + size()/2;
-                }
-                else
-                {
-                    return facei - size()/2;
-                }
-            }
+        //- Axis of rotation for rotational cyclics
+        const vector& rotationAxis() const
+        {
+            return rotationAxis_;
+        }
 
-            //- Type of transform
-            transformType transform() const
-            {
-                return transform_;
-            }
-
-            //- Axis of rotation for rotational cyclics
-            const vector& rotationAxis() const
-            {
-                return rotationAxis_;
-            }
-
-            //- point on axis of rotation for rotational cyclics
-            const point& rotationCentre() const
-            {
-                return rotationCentre_;
-            }
-
-            //- Translation vector for translational cyclics
-            const vector& separationVector() const
-            {
-                return separationVector_;
-            }
+        //- point on axis of rotation for rotational cyclics
+        const point& rotationCentre() const
+        {
+            return rotationCentre_;
+        }
 
+        //- Translation vector for translational cyclics
+        const vector& separationVector() const
+        {
+            return separationVector_;
+        }
 
 
         //- Initialize ordering for primitivePatch. Does not

src/OpenFOAM/meshes/polyMesh/polyPatches/constraint/processor/processorPolyPatch.C

@@ -62,9 +62,9 @@ Foam::processorPolyPatch::processorPolyPatch
     neighbProcNo_(neighbProcNo),
     neighbFaceCentres_(),
     neighbFaceAreas_(),
-    neighbFaceCellCentres_(),
-    neighbPointsPtr_(NULL),
-    neighbEdgesPtr_(NULL)
+    neighbFaceCellCentres_()
+//    neighbPointsPtr_(NULL),
+//    neighbEdgesPtr_(NULL)
 {}
 
 
@@ -81,9 +81,9 @@ Foam::processorPolyPatch::processorPolyPatch
     neighbProcNo_(readLabel(dict.lookup("neighbProcNo"))),
     neighbFaceCentres_(),
     neighbFaceAreas_(),
-    neighbFaceCellCentres_(),
-    neighbPointsPtr_(NULL),
-    neighbEdgesPtr_(NULL)
+    neighbFaceCellCentres_()
+//    neighbPointsPtr_(NULL),
+//    neighbEdgesPtr_(NULL)
 {}
 
 
@@ -98,9 +98,9 @@ Foam::processorPolyPatch::processorPolyPatch
     neighbProcNo_(pp.neighbProcNo_),
     neighbFaceCentres_(),
     neighbFaceAreas_(),
-    neighbFaceCellCentres_(),
-    neighbPointsPtr_(NULL),
-    neighbEdgesPtr_(NULL)
+    neighbFaceCellCentres_()
+//    neighbPointsPtr_(NULL),
+//    neighbEdgesPtr_(NULL)
 {}
 
 
@@ -118,9 +118,9 @@ Foam::processorPolyPatch::processorPolyPatch
     neighbProcNo_(pp.neighbProcNo_),
     neighbFaceCentres_(),
     neighbFaceAreas_(),
-    neighbFaceCellCentres_(),
-    neighbPointsPtr_(NULL),
-    neighbEdgesPtr_(NULL)
+    neighbFaceCellCentres_()
+//    neighbPointsPtr_(NULL),
+//    neighbEdgesPtr_(NULL)
 {}
 
 
@@ -129,7 +129,7 @@ Foam::processorPolyPatch::processorPolyPatch
     const processorPolyPatch& pp,
     const polyBoundaryMesh& bm,
     const label index,
-     const unallocLabelList& mapAddressing,
+    const unallocLabelList& mapAddressing,
     const label newStart
 )
 :
@@ -138,9 +138,9 @@ Foam::processorPolyPatch::processorPolyPatch
     neighbProcNo_(pp.neighbProcNo_),
     neighbFaceCentres_(),
     neighbFaceAreas_(),
-    neighbFaceCellCentres_(),
-    neighbPointsPtr_(NULL),
-    neighbEdgesPtr_(NULL)
+    neighbFaceCellCentres_()
+//    neighbPointsPtr_(NULL),
+//    neighbEdgesPtr_(NULL)
 {}
 
 
@@ -148,8 +148,8 @@ Foam::processorPolyPatch::processorPolyPatch
 
 Foam::processorPolyPatch::~processorPolyPatch()
 {
-    deleteDemandDrivenData(neighbPointsPtr_);
-    deleteDemandDrivenData(neighbEdgesPtr_);
+    neighbPointsPtr_.clear();
+    neighbEdgesPtr_.clear();
 }
 
 
@@ -157,6 +157,7 @@ Foam::processorPolyPatch::~processorPolyPatch()
 
 void Foam::processorPolyPatch::initGeometry(PstreamBuffers& pBufs)
 {
+//Pout<< "**processorPolyPatch::initGeometry()" << endl;
     if (Pstream::parRun())
     {
         UOPstream toNeighbProc(neighbProcNo(), pBufs);
@@ -171,6 +172,7 @@ void Foam::processorPolyPatch::initGeometry(PstreamBuffers& pBufs)
 
 void Foam::processorPolyPatch::calcGeometry(PstreamBuffers& pBufs)
 {
+//Pout<< "processorPolyPatch::calcGeometry() for " << name() << endl;
     if (Pstream::parRun())
     {
         {
@@ -182,6 +184,9 @@ void Foam::processorPolyPatch::calcGeometry(PstreamBuffers& pBufs)
                 >> neighbFaceCellCentres_;
         }
 
+//Pout<< "processorPolyPatch::calcGeometry() : received data for "
+//    << neighbFaceCentres_.size() << " faces." << endl;
+
         // My normals
         vectorField faceNormals(size());
 
@@ -247,6 +252,9 @@ void Foam::processorPolyPatch::calcGeometry(PstreamBuffers& pBufs)
             nbrFaceNormals,
             calcFaceTol(*this, points(), faceCentres())
         );
+//Pout<< "**neighbFaceCentres_:" << neighbFaceCentres_ << endl;
+//Pout<< "**neighbFaceAreas_:" << neighbFaceAreas_ << endl;
+//Pout<< "**neighbFaceCellCentres_:" << neighbFaceCellCentres_ << endl;
     }
 }
 
@@ -276,9 +284,6 @@ void Foam::processorPolyPatch::initUpdateMesh(PstreamBuffers& pBufs)
 {
     polyPatch::initUpdateMesh(pBufs);
 
-    deleteDemandDrivenData(neighbPointsPtr_);
-    deleteDemandDrivenData(neighbEdgesPtr_);
-
     if (Pstream::parRun())
     {
         // Express all points as patch face and index in face.
@@ -327,6 +332,9 @@ void Foam::processorPolyPatch::updateMesh(PstreamBuffers& pBufs)
     // For completeness
     polyPatch::updateMesh(pBufs);
 
+    neighbPointsPtr_.clear();
+    neighbEdgesPtr_.clear();
+
     if (Pstream::parRun())
     {
         labelList nbrPointFace;
@@ -352,8 +360,8 @@ void Foam::processorPolyPatch::updateMesh(PstreamBuffers& pBufs)
         // Convert points.
         // ~~~~~~~~~~~~~~~
 
-        neighbPointsPtr_ = new labelList(nPoints(), -1);
-        labelList& neighbPoints = *neighbPointsPtr_;
+        neighbPointsPtr_.reset(new labelList(nPoints(), -1));
+        labelList& neighbPoints = neighbPointsPtr_();
 
         forAll(nbrPointFace, nbrPointI)
         {
@@ -386,8 +394,8 @@ void Foam::processorPolyPatch::updateMesh(PstreamBuffers& pBufs)
         // Convert edges.
         // ~~~~~~~~~~~~~~
 
-        neighbEdgesPtr_ = new labelList(nEdges(), -1);
-        labelList& neighbEdges = *neighbEdgesPtr_;
+        neighbEdgesPtr_.reset(new labelList(nEdges(), -1));
+        labelList& neighbEdges = neighbEdgesPtr_();
 
         forAll(nbrEdgeFace, nbrEdgeI)
         {
@@ -425,25 +433,25 @@ void Foam::processorPolyPatch::updateMesh(PstreamBuffers& pBufs)
 
 const Foam::labelList& Foam::processorPolyPatch::neighbPoints() const
 {
-    if (!neighbPointsPtr_)
+    if (!neighbPointsPtr_.valid())
     {
         FatalErrorIn("processorPolyPatch::neighbPoints() const")
             << "No extended addressing calculated for patch " << name()
             << abort(FatalError);
     }
-    return *neighbPointsPtr_;
+    return neighbPointsPtr_();
 }
 
 
 const Foam::labelList& Foam::processorPolyPatch::neighbEdges() const
 {
-    if (!neighbEdgesPtr_)
+    if (!neighbEdgesPtr_.valid())
     {
         FatalErrorIn("processorPolyPatch::neighbEdges() const")
             << "No extended addressing calculated for patch " << name()
             << abort(FatalError);
     }
-    return *neighbEdgesPtr_;
+    return neighbEdgesPtr_();
 }
 
 
@@ -470,7 +478,7 @@ void Foam::processorPolyPatch::initOrder
         writeOBJ(nm, pp, pp.points());
 
         // Calculate my face centres
-        pointField ctrs(calcFaceCentres(pp, pp.points()));
+        const pointField& fc = pp.faceCentres();
 
         OFstream localStr
         (
@@ -478,26 +486,22 @@ void Foam::processorPolyPatch::initOrder
            /name() + "_localFaceCentres.obj"
         );
         Pout<< "processorPolyPatch::order : "
-            << "Dumping " << ctrs.size()
+            << "Dumping " << fc.size()
             << " local faceCentres to " << localStr.name() << endl;
 
-        forAll(ctrs, faceI)
+        forAll(fc, faceI)
         {
-            writeOBJ(localStr, ctrs[faceI]);
+            writeOBJ(localStr, fc[faceI]);
         }
     }
 
-    const bool isMaster = Pstream::myProcNo() < neighbProcNo();
-
-    if (isMaster)
+    if (owner())
     {
-        pointField ctrs(calcFaceCentres(pp, pp.points()));
-
         pointField anchors(getAnchorPoints(pp, pp.points()));
 
         // Now send all info over to the neighbour
         UOPstream toNeighbour(neighbProcNo(), pBufs);
-        toNeighbour << ctrs << anchors;
+        toNeighbour << pp.faceCentres() << anchors;
     }
 }
 
@@ -514,6 +518,8 @@ bool Foam::processorPolyPatch::order
     labelList& rotation
 ) const
 {
+    // Note: we only get the faces that originate from internal faces.
+
     if (!Pstream::parRun())
     {
         return false;
@@ -525,9 +531,7 @@ bool Foam::processorPolyPatch::order
     rotation.setSize(pp.size());
     rotation = 0;
 
-    const bool isMaster = Pstream::myProcNo() < neighbProcNo();
-
-    if (isMaster)
+    if (owner())
     {
         // Do nothing (i.e. identical mapping, zero rotation).
         // See comment at top.
@@ -549,11 +553,8 @@ bool Foam::processorPolyPatch::order
             fromNeighbour >> masterCtrs >> masterAnchors;
         }
 
-        // Calculate my face centres
-        pointField ctrs(calcFaceCentres(pp, pp.points()));
-
         // Calculate typical distance from face centre
-        scalarField tols(calcFaceTol(pp, pp.points(), ctrs));
+        scalarField tols(calcFaceTol(pp, pp.points(), pp.faceCentres()));
 
         if (debug || masterCtrs.size() != pp.size())
         {
@@ -591,84 +592,14 @@ bool Foam::processorPolyPatch::order
         // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
         // 1. Try existing ordering and transformation
-        bool matchedAll = false;
-
-        if
+        bool matchedAll = matchPoints
         (
-            separated()
-         && (separation().size() == 1 || separation().size() == pp.size())
-        )
-        {
-            vectorField transformedCtrs;
-
-            const vectorField& v = separation();
-
-            if (v.size() == 1)
-            {
-                transformedCtrs = masterCtrs-v[0];
-            }
-            else
-            {
-                transformedCtrs = masterCtrs-v;
-            }
-            matchedAll = matchPoints
-            (
-                ctrs,
-                transformedCtrs,
-                tols,
-                true,
-                faceMap
-            );
-
-            if (matchedAll)
-            {
-                // Use transformed centers from now on
-                masterCtrs = transformedCtrs;
-
-                // Transform anchors
-                if (v.size() == 1)
-                {
-                    masterAnchors -= v[0];
-                }
-                else
-                {
-                    masterAnchors -= v;
-                }
-            }
-        }
-        else if
-        (
-           !parallel()
-         && (forwardT().size() == 1 || forwardT().size() == pp.size())
-        )
-        {
-            vectorField transformedCtrs = masterCtrs;
-            transformList(forwardT(), transformedCtrs);
-            matchedAll = matchPoints
-            (
-                ctrs,
-                transformedCtrs,
-                tols,
-                true,
-                faceMap
-            );
-
-            if (matchedAll)
-            {
-                // Use transformed centers from now on
-                masterCtrs = transformedCtrs;
-
-                // Transform anchors
-                transformList(forwardT(), masterAnchors);
-            }
-        }
-
-
-        // 2. Try zero separation automatic matching
-        if (!matchedAll)
-        {
-            matchedAll = matchPoints(ctrs, masterCtrs, tols, true, faceMap);
-        }
+            pp.faceCentres(),
+            masterCtrs,
+            tols,
+            true,
+            faceMap
+        );
 
         if (!matchedAll || debug)
         {
@@ -695,14 +626,14 @@ bool Foam::processorPolyPatch::order
 
             label vertI = 0;
 
-            forAll(ctrs, faceI)
+            forAll(pp.faceCentres(), faceI)
             {
                 label masterFaceI = faceMap[faceI];
 
                 if (masterFaceI != -1)
                 {
                     const point& c0 = masterCtrs[masterFaceI];
-                    const point& c1 = ctrs[faceI];
+                    const point& c1 = pp.faceCentres()[faceI];
                     writeOBJ(ccStr, c0, c1, vertI);
                 }
             }
@@ -718,7 +649,7 @@ bool Foam::processorPolyPatch::order
                 << "Cannot match vectors to faces on both sides of patch"
                 << endl
                 << "    masterCtrs[0]:" << masterCtrs[0] << endl
-                << "    ctrs[0]:" << ctrs[0] << endl
+                << "    ctrs[0]:" << pp.faceCentres()[0] << endl
                 << "    Please check your topology changes or maybe you have"
                 << " multiple separated (from cyclics) processor patches"
                 << endl

src/OpenFOAM/meshes/polyMesh/polyPatches/constraint/processor/processorPolyPatch.H

@@ -40,6 +40,8 @@ SourceFiles
 #define processorPolyPatch_H
 
 #include "coupledPolyPatch.H"
+#include "polyBoundaryMesh.H"
+#include "faceListFwd.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
@@ -70,23 +72,11 @@ class processorPolyPatch
 
         //- Corresponding neighbouring local point label for every local point
         //  (so localPoints()[i] == neighb.localPoints()[neighbPoints_[i]])
-        mutable labelList* neighbPointsPtr_;
+        mutable autoPtr<labelList> neighbPointsPtr_;
 
         //- Corresponding neighbouring local edge label for every local edge
         //  (so edges()[i] == neighb.edges()[neighbEdges_[i]])
-        mutable labelList* neighbEdgesPtr_;
-
-
-
-    // Private static data
-
-        //- Whether to use geometric or topological matching
-        static bool geometricMatch_;
-
-        //- Relative tolerance (for geometric matching only). Is factor of
-        //  maximum edge length per face.
-        static scalar matchTol_;
-
+        mutable autoPtr<labelList> neighbEdgesPtr_;
 
 protected:
 
@@ -98,6 +88,22 @@ protected:
         //- Calculate the patch geometry
         void calcGeometry(PstreamBuffers&);
 
+        //- Calculate the patch geometry with externally
+        //  provided geometry
+        virtual void calcGeometry
+        (
+            const primitivePatch& referPatch,
+            const UList<point>& thisCtrs,
+            const UList<point>& thisAreas,
+            const UList<point>& thisCc,
+            const UList<point>& nbrCtrs,
+            const UList<point>& nbrAreas,
+            const UList<point>& nbrCc
+        )
+        {
+            notImplemented("processorPolyPatch::calcGeometry(..)");
+        }
+
         //- Initialise the patches for moving points
         void initMovePoints(PstreamBuffers&, const pointField&);
 
@@ -236,7 +242,7 @@ public:
         }
 
         //- Does the processor own the patch ?
-        bool owner() const
+        virtual bool owner() const
         {
             return (myProcNo_ < neighbProcNo_);
         }
@@ -265,16 +271,21 @@ public:
             return neighbFaceCellCentres_;
         }
 
-        //- Return neighbour point labels. This is for my local point (-1 or)
-        //  the corresponding local point on the other side. It is -1 if
-        //  there are multiple corresponding points on this or the other side
-        //  (can happen for cyclics being converted into proc patches)
+        //- Return neighbour point labels. WIP.
         const labelList& neighbPoints() const;
 
-        //- Return neighbour edge labels. This is for my local edge (-1 or) the
-        //  corresponding local edge on the other side. See above for -1 cause.
+        //- Return neighbour edge labels. WIP.
         const labelList& neighbEdges() const;
 
+        //- Return message tag to use for communication
+        virtual int tag() const
+        {
+            return Pstream::msgType();
+        }
+
+        //- Transform a patch-based position from other side to this side
+        virtual void transformPosition(pointField& l) const
+        {}
 
         //- Initialize ordering for primitivePatch. Does not
         //  refer to *this (except for name() and type() etc.)

src/OpenFOAM/meshes/polyMesh/polyPatches/constraint/processor/processorPolyPatchTemplates.C

@@ -0,0 +1,60 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 1991-2008 OpenCFD Ltd.
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software; you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the
+    Free Software Foundation; either version 2 of the License, or (at your
+    option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM; if not, write to the Free Software Foundation,
+    Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+\*---------------------------------------------------------------------------*/
+
+#include "processorPolyPatch.H"
+#include "transformField.H"
+
+// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
+
+template<class T>
+void Foam::processorPolyPatch::transform(Field<T>& l) const
+{
+    if (l.size() != size())
+    {
+        FatalErrorIn("processorPolyPatch::transform(Field<T>&) const")
+            << "Size of field " << l.size() << " differs from patch size "
+            << size() << abort(FatalError);
+    }
+
+    forAll(patchIDs_, subI)
+    {
+        label patchI = patchIDs_[subI];
+
+        if (patchI != -1)
+        {
+            // Get field on patch
+            typename Field<T>::subField subFld(subSlice(l, subI));
+
+            refCast<const coupledPolyPatch>
+            (
+                boundaryMesh()[patchI]
+            ).transform(subFld);
+        }
+    }
+}
+
+
+// ************************************************************************* //

src/OpenFOAM/meshes/polyMesh/polyPatches/constraint/processorCyclic/processorCyclicPolyPatch.C

@@ -0,0 +1,246 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 1991-2009 OpenCFD Ltd.
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software; you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the
+    Free Software Foundation; either version 2 of the License, or (at your
+    option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM; if not, write to the Free Software Foundation,
+    Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+\*---------------------------------------------------------------------------*/
+
+#include "processorCyclicPolyPatch.H"
+#include "addToRunTimeSelectionTable.H"
+#include "SubField.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+    defineTypeNameAndDebug(processorCyclicPolyPatch, 0);
+    addToRunTimeSelectionTable(polyPatch, processorCyclicPolyPatch, dictionary);
+}
+
+
+// * * * * * * * * * * * * * Private Member Functions  * * * * * * * * * * * //
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+Foam::processorCyclicPolyPatch::processorCyclicPolyPatch
+(
+    const word& name,
+    const label size,
+    const label start,
+    const label index,
+    const polyBoundaryMesh& bm,
+    const int myProcNo,
+    const int neighbProcNo,
+    const word& referPatchName
+)
+:
+    processorPolyPatch(name, size, start, index, bm, myProcNo, neighbProcNo),
+    tag_(UPstream::allocateTag()),
+    referPatchName_(referPatchName),
+    referPatchID_(-1)
+{}
+
+
+Foam::processorCyclicPolyPatch::processorCyclicPolyPatch
+(
+    const word& name,
+    const dictionary& dict,
+    const label index,
+    const polyBoundaryMesh& bm
+)
+:
+    processorPolyPatch(name, dict, index, bm),
+    tag_(UPstream::allocateTag()),
+    referPatchName_(dict.lookup("referPatch")),
+    referPatchID_(-1)
+{}
+
+
+Foam::processorCyclicPolyPatch::processorCyclicPolyPatch
+(
+    const processorCyclicPolyPatch& pp,
+    const polyBoundaryMesh& bm
+)
+:
+    processorPolyPatch(pp, bm),
+    tag_(pp.tag_),
+    referPatchName_(pp.referPatchName()),
+    referPatchID_(-1)
+{}
+
+
+Foam::processorCyclicPolyPatch::processorCyclicPolyPatch
+(
+    const processorCyclicPolyPatch& pp,
+    const polyBoundaryMesh& bm,
+    const label index,
+    const label newSize,
+    const label newStart,
+    const word& referPatchName
+)
+:
+    processorPolyPatch(pp, bm, index, newSize, newStart),
+    tag_(pp.tag_),
+    referPatchName_(referPatchName),
+    referPatchID_(-1)
+{}
+
+
+Foam::processorCyclicPolyPatch::processorCyclicPolyPatch
+(
+    const processorCyclicPolyPatch& pp,
+    const polyBoundaryMesh& bm,
+    const label index,
+    const unallocLabelList& mapAddressing,
+    const label newStart
+)
+:
+    processorPolyPatch(pp, bm, index, mapAddressing, newStart),
+    tag_(pp.tag_),
+    referPatchName_(pp.referPatchName()),
+    referPatchID_(-1)
+{}
+
+
+// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
+
+Foam::processorCyclicPolyPatch::~processorCyclicPolyPatch()
+{
+    UPstream::freeTag(tag_);
+}
+
+
+// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
+
+
+void Foam::processorCyclicPolyPatch::initGeometry(PstreamBuffers& pBufs)
+{
+    // Send over processorPolyPatch data
+    processorPolyPatch::initGeometry(pBufs);
+}
+
+
+void Foam::processorCyclicPolyPatch::calcGeometry(PstreamBuffers& pBufs)
+{
+    // Receive and initialise processorPolyPatch data
+    processorPolyPatch::calcGeometry(pBufs);
+
+    if (Pstream::parRun())
+    {
+
+        // Where do we store the calculated transformation?
+        // - on the processor patch?
+        // - on the underlying cyclic patch?
+        // - or do we not auto-calculate the transformation but
+        //   have option of reading it.
+
+        // Update underlying cyclic
+        coupledPolyPatch& pp = const_cast<coupledPolyPatch&>(referPatch());
+
+        Pout<< "updating geometry on refered patch:" << pp.name() << endl;
+
+        pp.calcGeometry
+        (
+            *this,
+            faceCentres(),
+            faceAreas(),
+            faceCellCentres(),
+            neighbFaceCentres(),
+            neighbFaceAreas(),
+            neighbFaceCellCentres()
+        );
+    }
+}
+
+
+void Foam::processorCyclicPolyPatch::initMovePoints
+(
+    PstreamBuffers& pBufs,
+    const pointField& p
+)
+{
+    // Recalculate geometry
+    initGeometry(pBufs);
+}
+
+
+void Foam::processorCyclicPolyPatch::movePoints
+(
+    PstreamBuffers& pBufs,
+    const pointField&
+)
+{
+    calcGeometry(pBufs);
+}
+
+
+void Foam::processorCyclicPolyPatch::initUpdateMesh(PstreamBuffers& pBufs)
+{
+    processorPolyPatch::initUpdateMesh(pBufs);
+}
+
+
+void Foam::processorCyclicPolyPatch::updateMesh(PstreamBuffers& pBufs)
+{
+     referPatchID_ = -1;
+     processorPolyPatch::updateMesh(pBufs);
+}
+
+
+void Foam::processorCyclicPolyPatch::initOrder
+(
+    PstreamBuffers& pBufs,
+    const primitivePatch& pp
+) const
+{
+    // For now use the same algorithm as processorPolyPatch
+    processorPolyPatch::initOrder(pBufs, pp);
+}
+
+
+// Return new ordering. Ordering is -faceMap: for every face index
+// the new face -rotation:for every new face the clockwise shift
+// of the original face. Return false if nothing changes (faceMap
+// is identity, rotation is 0)
+bool Foam::processorCyclicPolyPatch::order
+(
+    PstreamBuffers& pBufs,
+    const primitivePatch& pp,
+    labelList& faceMap,
+    labelList& rotation
+) const
+{
+    // For now use the same algorithm as processorPolyPatch
+    return processorPolyPatch::order(pBufs, pp, faceMap, rotation);
+}
+
+
+void Foam::processorCyclicPolyPatch::write(Ostream& os) const
+{
+    processorPolyPatch::write(os);
+    os.writeKeyword("referPatch") << referPatchName_
+        << token::END_STATEMENT << nl;
+}
+
+
+// ************************************************************************* //

src/OpenFOAM/meshes/polyMesh/polyPatches/constraint/processorCyclic/processorCyclicPolyPatch.H

@@ -0,0 +1,394 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 1991-2009 OpenCFD Ltd.
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software; you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the
+    Free Software Foundation; either version 2 of the License, or (at your
+    option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM; if not, write to the Free Software Foundation,
+    Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+Class
+    Foam::processorCyclicPolyPatch
+
+Description
+    Neighbour processor patch.
+
+    Note: morph patch face ordering is geometric.
+
+SourceFiles
+    processorCyclicPolyPatch.C
+
+\*---------------------------------------------------------------------------*/
+
+#ifndef processorCyclicPolyPatch_H
+#define processorCyclicPolyPatch_H
+
+#include "processorPolyPatch.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+
+/*---------------------------------------------------------------------------*\
+                           Class processorCyclicPolyPatch Declaration
+\*---------------------------------------------------------------------------*/
+
+class processorCyclicPolyPatch
+:
+    public processorPolyPatch
+{
+    // Private data
+
+        //- Message tag to use for communication
+        const int tag_;
+
+        //- Name of originating patch
+        const word referPatchName_;
+
+        //- Index of originating patch
+        mutable label referPatchID_;
+
+    // Private member functions
+
+
+protected:
+
+    // Protected Member functions
+
+        //- Initialise the calculation of the patch geometry
+        void initGeometry(PstreamBuffers&);
+
+//        //- Initialise the calculation of the patch geometry with externally
+//        //  provided geometry
+//        virtual void initGeometry
+//        (
+//            const primitivePatch& referPatch,
+//            UList<point>&,
+//            UList<point>&,
+//            UList<point>&
+//        )
+//        {
+//            notImplemented("processorCyclicPolyPatch::initGeometry(..)");
+//        }
+
+        //- Calculate the patch geometry
+        void calcGeometry(PstreamBuffers&);
+
+        //- Calculate the patch geometry with externally
+        //  provided geometry
+        virtual void calcGeometry
+        (
+            const primitivePatch& referPatch,
+            const UList<point>& thisCtrs,
+            const UList<point>& thisAreas,
+            const UList<point>& thisCc,
+            const UList<point>& nbrCtrs,
+            const UList<point>& nbrAreas,
+            const UList<point>& nbrCc
+        )
+        {
+            notImplemented("processorCyclicPolyPatch::calcGeometry(..)");
+        }
+
+        //- Initialise the patches for moving points
+        void initMovePoints(PstreamBuffers&, const pointField&);
+
+        //- Correct patches after moving points
+        void movePoints(PstreamBuffers&, const pointField&);
+
+        //- Initialise the update of the patch topology
+        virtual void initUpdateMesh(PstreamBuffers&);
+
+        //- Update of the patch topology
+        virtual void updateMesh(PstreamBuffers&);
+
+
+public:
+
+    //- Runtime type information
+    TypeName("processorCyclic");
+
+
+    // Constructors
+
+        //- Construct from components
+        processorCyclicPolyPatch
+        (
+            const word& name,
+            const label size,
+            const label start,
+            const label index,
+            const polyBoundaryMesh& bm,
+            const int myProcNo,
+            const int neighbProcNo,
+            const word& referPatchName
+        );
+
+        //- Construct from dictionary
+        processorCyclicPolyPatch
+        (
+            const word& name,
+            const dictionary& dict,
+            const label index,
+            const polyBoundaryMesh&
+        );
+
+        //- Construct as copy, resetting the boundary mesh
+        processorCyclicPolyPatch
+        (
+            const processorCyclicPolyPatch&,
+            const polyBoundaryMesh&
+        );
+
+        //- Construct as given the original patch and resetting the
+        //  face list and boundary mesh information
+        processorCyclicPolyPatch
+        (
+            const processorCyclicPolyPatch& pp,
+            const polyBoundaryMesh& bm,
+            const label index,
+            const label newSize,
+            const label newStart,
+            const word& referPatchName
+        );
+
+        //- Construct given the original patch and a map
+        processorCyclicPolyPatch
+        (
+            const processorCyclicPolyPatch& pp,
+            const polyBoundaryMesh& bm,
+            const label index,
+            const unallocLabelList& mapAddressing,
+            const label newStart
+        );
+
+
+        //- Construct and return a clone, resetting the boundary mesh
+        virtual autoPtr<polyPatch> clone(const polyBoundaryMesh& bm) const
+        {
+            return autoPtr<polyPatch>(new processorCyclicPolyPatch(*this, bm));
+        }
+
+        //- Construct and return a clone, resetting the face list
+        //  and boundary mesh
+        virtual autoPtr<polyPatch> clone
+        (
+            const polyBoundaryMesh& bm,
+            const label index,
+            const label newSize,
+            const label newStart,
+            const word& referPatchName
+        ) const
+        {
+            return autoPtr<polyPatch>
+            (
+                new processorCyclicPolyPatch
+                (
+                    *this,
+                    bm,
+                    index,
+                    newSize,
+                    newStart,
+                    referPatchName
+                )
+            );
+        }
+
+        //- Construct and return a clone, resetting the face list
+        //  and boundary mesh
+        virtual autoPtr<polyPatch> clone
+        (
+            const polyBoundaryMesh& bm,
+            const label index,
+            const unallocLabelList& mapAddressing,
+            const label newStart
+        ) const
+        {
+            return autoPtr<polyPatch>
+            (
+                new processorCyclicPolyPatch
+                (
+                    *this,
+                    bm,
+                    index,
+                    mapAddressing,
+                    newStart
+                )
+            );
+        }
+
+
+    // Destructor
+
+        virtual ~processorCyclicPolyPatch();
+
+
+    // Member functions
+
+        const word& referPatchName() const
+        {
+            return referPatchName_;
+        }
+
+        //- Referring patchID.
+        label referPatchID() const
+        {
+            if (referPatchID_ == -1)
+            {
+                referPatchID_ = this->boundaryMesh().findPatchID
+                (
+                    referPatchName_
+                );
+                if (referPatchID_ == -1)
+                {
+                    FatalErrorIn
+                    (
+                        "processorCyclicPolyPatch::referPatchID() const"
+                    )   << "Illegal referPatch name " << referPatchName_
+                        << endl << "Valid patch names are "
+                        << this->boundaryMesh().names()
+                        << exit(FatalError);
+                }
+            }
+            return referPatchID_;
+        }
+
+        const coupledPolyPatch& referPatch() const
+        {
+            const polyPatch& pp = this->boundaryMesh()[referPatchID()];
+            return refCast<const coupledPolyPatch>(pp);
+        }
+
+        //- Return message tag to use for communication
+        virtual int tag() const
+        {
+            return tag_;
+        }
+
+        //- Does this side own the patch ?
+        virtual bool owner() const
+        {
+            return referPatch().owner();
+        }
+
+//        //- Transform a patch-based field from other side to this side.
+//        virtual bool doTransform() const
+//        {
+//            return referPatch().doTransform();
+//        }
+//        virtual void transform(scalarField& l) const
+//        {
+//            referPatch().transform(l);
+//        }
+//        virtual void transform(vectorField& l) const
+//        {
+//            referPatch().transform(l);
+//        }
+//        virtual void transform(sphericalTensorField& l) const
+//        {
+//            referPatch().transform(l);
+//        }
+//        virtual void transform(diagTensorField& l) const
+//        {
+//            referPatch().transform(l);
+//        }
+//        virtual void transform(symmTensorField& l) const
+//        {
+//            referPatch().transform(l);
+//        }
+//        virtual void transform(tensorField& l) const
+//        {
+//            referPatch().transform(l);
+//        }
+
+        //- Transform a patch-based position from other side to this side
+        virtual void transformPosition(pointField& l) const
+        {
+            referPatch().transformPosition(l);
+        }
+
+        //- Are the planes separated.
+        virtual bool separated() const
+        {
+            return referPatch().separated();
+        }
+
+        //- If the planes are separated the separation vector.
+        virtual const vectorField& separation() const
+        {
+            return referPatch().separation();
+        }
+
+        //- Are the cyclic planes parallel.
+        virtual bool parallel() const
+        {
+            return referPatch().parallel();
+        }
+
+        //- Return face transformation tensor.
+        virtual const tensorField& forwardT() const
+        {
+            return referPatch().forwardT();
+        }
+
+        //- Return neighbour-cell transformation tensor.
+        virtual const tensorField& reverseT() const
+        {
+            return referPatch().reverseT();
+        }
+
+        //- Are faces collocated. Either size 0,1 or length of patch
+        virtual const boolList& collocated() const
+        {
+            return referPatch().collocated();
+        }
+
+
+        //- Initialize ordering for primitivePatch. Does not
+        //  refer to *this (except for name() and type() etc.)
+        virtual void initOrder(PstreamBuffers&, const primitivePatch&) const;
+
+        //- Return new ordering for primitivePatch.
+        //  Ordering is -faceMap: for every face
+        //  index of the new face -rotation:for every new face the clockwise
+        //  shift of the original face. Return false if nothing changes
+        //  (faceMap is identity, rotation is 0), true otherwise.
+        virtual bool order
+        (
+            PstreamBuffers&,
+            const primitivePatch&,
+            labelList& faceMap,
+            labelList& rotation
+        ) const;
+
+
+        //- Write the polyPatch data as a dictionary
+        virtual void write(Ostream&) const;
+};
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+} // End namespace Foam
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#endif
+
+// ************************************************************************* //

src/OpenFOAM/meshes/polyMesh/polyPatches/polyPatch/polyPatch.H

@@ -87,12 +87,6 @@ class polyPatch
             mutable labelList* mePtr_;
 
 
-    // Private Member Functions
-
-        //- Calculate labels of mesh edges
-        void calcMeshEdges() const;
-
-
 protected:
 
     // Protected Member Functions

src/OpenFOAM/meshes/polyMesh/syncTools/dummyTransform.H

@@ -0,0 +1,121 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 1991-2009 OpenCFD Ltd.
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software; you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the
+    Free Software Foundation; either version 2 of the License, or (at your
+    option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM; if not, write to the Free Software Foundation,
+    Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+InClass
+    Foam::dummyTransform
+
+Description
+    Dummy transform to be used with syncTools.
+
+\*---------------------------------------------------------------------------*/
+
+#ifndef dummyTransform_H
+#define dummyTransform_H
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+
+/*---------------------------------------------------------------------------*\
+                           Class dummyTransform Declaration
+\*---------------------------------------------------------------------------*/
+
+class dummyTransform
+{
+public:
+    template<class T>
+    void operator()(const coupledPolyPatch& cpp, Field<T>& fld) const
+    {}
+    template<class T, template<class> class Container>
+    void operator()(const coupledPolyPatch& cpp, Container<T>& map) const
+    {}
+};
+
+
+template<class T>
+class pTraits<List<T> >
+:
+    public List<T>
+{
+public:
+    typedef label cmptType;
+
+    pTraits(Istream& is)
+    :
+        List<T>(is)
+    {}
+};
+
+template<class T>
+class pTraits<UList<T> >
+:
+    public UList<T>
+{
+public:
+    typedef label cmptType;
+
+    pTraits(Istream& is)
+    :
+        UList<T>(is)
+    {}
+};
+
+template<class T>
+class pTraits<Field<T> >
+:
+    public Field<T>
+{
+public:
+    typedef label cmptType;
+
+    pTraits(Istream& is)
+    :
+        Field<T>(is)
+    {}
+};
+
+template<>
+class pTraits<face>
+:
+    public face
+{
+public:
+    typedef label cmptType;
+
+    pTraits(Istream& is)
+    :
+        face(is)
+    {}
+};
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+} // End namespace Foam
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#endif
+
+// ************************************************************************* //

src/OpenFOAM/meshes/polyMesh/syncTools/syncTools.C

@@ -28,6 +28,77 @@ License
 
 // * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
 
+template<>
+void Foam::syncTools::transform::operator()
+(
+    const coupledPolyPatch&,
+    Field<label>&
+) const
+{}
+template<>
+void Foam::syncTools::transform::operator()
+(
+    const coupledPolyPatch&,
+    Map<label>&
+) const
+{}
+template<>
+void Foam::syncTools::transform::operator()
+(
+    const coupledPolyPatch&,
+    EdgeMap<label>&
+) const
+{}
+
+
+template<>
+void Foam::syncTools::transform::operator()
+(
+    const coupledPolyPatch&,
+    Field<scalar>&
+) const
+{}
+template<>
+void Foam::syncTools::transform::operator()
+(
+    const coupledPolyPatch&,
+    Map<scalar>&
+) const
+{}
+template<>
+void Foam::syncTools::transform::operator()
+(
+    const coupledPolyPatch&,
+    EdgeMap<scalar>&
+) const
+{}
+
+
+template<>
+void Foam::syncTools::transform::operator()
+(
+    const coupledPolyPatch&,
+    Field<bool>&
+) const
+{}
+template<>
+void Foam::syncTools::transform::operator()
+(
+    const coupledPolyPatch&,
+    Map<bool>&
+) const
+{}
+template<>
+void Foam::syncTools::transform::operator()
+(
+    const coupledPolyPatch&,
+    EdgeMap<bool>&
+) const
+{}
+
+
+// * * * * * * * * * * * * * Private Member Functions  * * * * * * * * * * * //
+
 // Does anyone have couples? Since meshes might have 0 cells and 0 proc
 // boundaries need to reduce this info.
 bool Foam::syncTools::hasCouples(const polyBoundaryMesh& patches)
@@ -46,31 +117,6 @@ bool Foam::syncTools::hasCouples(const polyBoundaryMesh& patches)
 }
 
 
-void Foam::syncTools::checkTransform
-(
-    const coupledPolyPatch& pp,
-    const bool applySeparation
-)
-{
-    if (!pp.parallel() && pp.forwardT().size() > 1)
-    {
-        FatalErrorIn("syncTools::checkTransform(const coupledPolyPatch&)")
-            << "Non-uniform transformation not supported for point or edge"
-            << " fields." << endl
-            << "Patch:" << pp.name()
-            << abort(FatalError);
-    }
-    if (applySeparation && pp.separated() && pp.separation().size() > 1)
-    {
-        FatalErrorIn("syncTools::checkTransform(const coupledPolyPatch&)")
-            << "Non-uniform separation vector not supported for point or edge"
-            << " fields." << endl
-            << "Patch:" << pp.name()
-            << abort(FatalError);
-    }
-}
-
-
 // Determines for every point whether it is coupled and if so sets only one.
 Foam::PackedBoolList Foam::syncTools::getMasterPoints(const polyMesh& mesh)
 {
@@ -154,36 +200,16 @@ Foam::PackedBoolList Foam::syncTools::getMasterFaces(const polyMesh& mesh)
     {
         if (patches[patchI].coupled())
         {
-            if (Pstream::parRun() && isA<processorPolyPatch>(patches[patchI]))
-            {
-                const processorPolyPatch& pp =
-                    refCast<const processorPolyPatch>(patches[patchI]);
+            const coupledPolyPatch& pp =
+                refCast<const coupledPolyPatch>(patches[patchI]);
 
-                if (!pp.owner())
-                {
-                    forAll(pp, i)
-                    {
-                        isMasterFace.unset(pp.start()+i);
-                    }
-                }
-            }
-            else if (isA<cyclicPolyPatch>(patches[patchI]))
+            if (!pp.owner())
             {
-                const cyclicPolyPatch& pp =
-                    refCast<const cyclicPolyPatch>(patches[patchI]);
-
-                for (label i = pp.size()/2; i < pp.size(); i++)
+                forAll(pp, i)
                 {
                     isMasterFace.unset(pp.start()+i);
                 }
             }
-            else
-            {
-                FatalErrorIn("syncTools::getMasterFaces(const polyMesh&)")
-                    << "Cannot handle coupled patch " << patches[patchI].name()
-                    << " of type " <<  patches[patchI].type()
-                    << abort(FatalError);
-            }
         }
     }
 
@@ -191,100 +217,4 @@ Foam::PackedBoolList Foam::syncTools::getMasterFaces(const polyMesh& mesh)
 }
 
 
-template <>
-void Foam::syncTools::separateList
-(
-    const vectorField& separation,
-    UList<vector>& field
-)
-{
-    if (separation.size() == 1)
-    {
-        // Single value for all.
-
-        forAll(field, i)
-        {
-            field[i] += separation[0];
-        }
-    }
-    else if (separation.size() == field.size())
-    {
-        forAll(field, i)
-        {
-            field[i] += separation[i];
-        }
-    }
-    else
-    {
-        FatalErrorIn
-        (
-            "syncTools::separateList(const vectorField&, UList<vector>&)"
-        )   << "Sizes of field and transformation not equal. field:"
-            << field.size() << " transformation:" << separation.size()
-            << abort(FatalError);
-    }
-}
-
-
-template <>
-void Foam::syncTools::separateList
-(
-    const vectorField& separation,
-    Map<vector>& field
-)
-{
-    if (separation.size() == 1)
-    {
-        // Single value for all.
-        forAllIter(Map<vector>, field, iter)
-        {
-            iter() += separation[0];
-        }
-    }
-    else if (separation.size() == field.size())
-    {
-        forAllIter(Map<vector>, field, iter)
-        {
-            iter() += separation[iter.key()];
-        }
-    }
-    else
-    {
-        FatalErrorIn
-        (
-            "syncTools::separateList(const vectorField&, Map<vector>&)"
-        )   << "Sizes of field and transformation not equal. field:"
-            << field.size() << " transformation:" << separation.size()
-            << abort(FatalError);
-    }
-}
-
-
-template <>
-void Foam::syncTools::separateList
-(
-    const vectorField& separation,
-    EdgeMap<vector>& field
-)
-{
-    if (separation.size() == 1)
-    {
-        // Single value for all.
-        forAllIter(EdgeMap<vector>, field, iter)
-        {
-            iter() += separation[0];
-        }
-    }
-    else
-    {
-        FatalErrorIn
-        (
-            "syncTools::separateList(const vectorField&, EdgeMap<vector>&)"
-        )   << "Multiple separation vectors not supported. field:"
-            << field.size() << " transformation:" << separation.size()
-            << abort(FatalError);
-    }
-}
-
-
 // ************************************************************************* //

src/OpenFOAM/meshes/polyMesh/syncTools/syncTools.H

@@ -50,10 +50,12 @@ SourceFiles
 
 #include "UList.H"
 #include "Pstream.H"
-#include "transformList.H"
 #include "Map.H"
 #include "EdgeMap.H"
 #include "PackedBoolList.H"
+#include "polyMesh.H"
+#include "coupledPolyPatch.H"
+#include "transformList.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
@@ -61,8 +63,6 @@ namespace Foam
 {
 
 class polyBoundaryMesh;
-class polyMesh;
-class coupledPolyPatch;
 
 /*---------------------------------------------------------------------------*\
                            Class syncTools Declaration
@@ -75,20 +75,6 @@ class syncTools
         //- Check whether uses couples.
         static bool hasCouples(const polyBoundaryMesh&);
 
-        //- Check for single transformation tensor only.
-        static void checkTransform(const coupledPolyPatch&, const bool);
-
-        //- Apply separation to list. Either single vector or one vector
-        //  per element.
-        template <class T>
-        static void separateList(const vectorField&, UList<T>&);
-
-        template <class T>
-        static void separateList(const vectorField&, Map<T>&);
-
-        template <class T>
-        static void separateList(const vectorField&, EdgeMap<T>&);
-
         //- Combine value with existing value in map.
         template <class T, class CombineOp>
         static void combine
@@ -112,117 +98,384 @@ class syncTools
 
 public:
 
-    // Static data members
+    // Public classes
 
-        //- Synchronize values on all mesh points.
-        //  Applies rotation and optionally separation for parallel cyclics
-        template <class T, class CombineOp>
-        static void syncPointList
-        (
-            const polyMesh&,
-            UList<T>&,
-            const CombineOp& cop,
-            const T& nullValue,
-            const bool applySeparation
-        );
+        class transform
+        {
+        public:
+            //- Transform patch-based field
+            template<class T>
+            void operator()(const coupledPolyPatch& cpp, Field<T>& fld) const
+            {
+                if (!cpp.parallel())
+                {
+                    transformList(cpp.forwardT(), fld);
+                }
+            }
 
-        //- Synchronize values on selected mesh points.
-        //  Applies rotation and optionally separation for parallel cyclics
-        template <class T, class CombineOp>
-        static void syncPointList
-        (
-            const polyMesh&,
-            const labelList& meshPoints,
-            UList<T>&,
-            const CombineOp& bop,
-            const T& nullValue,
-            const bool applySeparation
-        );
+            //- Transform sparse field
+            template<class T, template<class> class Container>
+            void operator()(const coupledPolyPatch& cpp, Container<T>& map)
+            const
+            {
+                if (!cpp.parallel())
+                {
+                    transformList(cpp.forwardT(), map);
+                }
+            }
+        };
 
-        //- Synchronize values on all mesh edges.
-        //  Applies rotation and optionally separation for parallel cyclics
-        template <class T, class CombineOp>
-        static void syncEdgeList
-        (
-            const polyMesh&,
-            UList<T>&,
-            const CombineOp& cop,
-            const T& nullValue,
-            const bool applySeparation
-        );
+        class transformPosition
+        {
+        public:
+            void operator()(const coupledPolyPatch& cpp, pointField& fld) const
+            {
+                cpp.transformPosition(fld);
+            }
+            template<template<class> class Container>
+            void operator()(const coupledPolyPatch& cpp, Container<point>& map)
+            const
+            {
+                Field<point> fld(map.size());
+                label i = 0;
+                forAllConstIter(typename Container<point>, map, iter)
+                {
+                    fld[i++] = iter();
+                }
+                cpp.transformPosition(fld);
+                i = 0;
+                forAllIter(typename Container<point>, map, iter)
+                {
+                    iter() = fld[i++];
+                }
+            }
+        };
 
-        //- Synchronize values on boundary faces only.
-        //  Optionally applies rotation tensor for non-parallel cyclics
-        //  (but not separation!)
-        template <class T, class CombineOp>
-        static void syncBoundaryFaceList
-        (
-            const polyMesh&,
-            UList<T>&,
-            const CombineOp& cop,
-            const bool applySeparation
-        );
 
-        //- Synchronize values on all mesh faces.
-        //  Optionally applies rotation tensor for non-parallel cyclics
-        //  (but not separation!)
-        template <class T, class CombineOp>
-        static void syncFaceList
-        (
-            const polyMesh&,
-            UList<T>&,
-            const CombineOp& cop,
-            const bool applySeparation
-        );
-
-        //- Swap coupled face values.
-        //  Applies rotation and optionally separation for parallel cyclics
-        template <class T>
-        static void swapBoundaryFaceList
-        (
-            const polyMesh&,
-            UList<T>&,
-            const bool applySeparation
-        );
-
-        //- Swap coupled face values.
-        //  Applies rotation and optionally separation for parallel cyclics
-        template <class T>
-        static void swapFaceList
-        (
-            const polyMesh&,
-            UList<T>&,
-            const bool applySeparation
-        );
-
-        // Sparse versions
+        // Basic routines with user-supplied transformation. Preferably
+        // use specialisations below.
 
             //- Synchronize values on selected points.
-            //  Applies rotation and optionally separation for parallel
-            //  cyclics.
-            template <class T, class CombineOp>
+            template <class T, class CombineOp, class TransformOp>
             static void syncPointMap
             (
                 const polyMesh&,
                 Map<T>& pointValues,
                 const CombineOp& cop,
-                const bool applySeparation
+                const TransformOp& top
             );
 
-            //- Synchronize values on selected edges. Edges are represented
-            //  by the two vertices that make it up so global edges never get
-            //  constructed.
-            //  Applies rotation and optionally separation for parallel
-            //  cyclics.
-            template <class T, class CombineOp>
+            //- Synchronize values on selected edges.
+            template <class T, class CombineOp, class TransformOp>
             static void syncEdgeMap
             (
                 const polyMesh&,
                 EdgeMap<T>& edgeValues,
                 const CombineOp& cop,
-                const bool applySeparation
+                const TransformOp& top
             );
 
+            //- Synchronize values on all mesh points.
+            template <class T, class CombineOp, class TransformOp>
+            static void syncPointList
+            (
+                const polyMesh&,
+                UList<T>&,
+                const CombineOp& cop,
+                const T& nullValue,
+                const TransformOp& top
+            );
+
+            //- Synchronize values on selected mesh points.
+            template <class T, class CombineOp, class TransformOp>
+            static void syncPointList
+            (
+                const polyMesh&,
+                const labelList& meshPoints,
+                UList<T>&,
+                const CombineOp& cop,
+                const T& nullValue,
+                const TransformOp& top
+            );
+
+            //- Synchronize values on all mesh edges.
+            template <class T, class CombineOp, class TransformOp>
+            static void syncEdgeList
+            (
+                const polyMesh&,
+                UList<T>&,
+                const CombineOp& cop,
+                const T& nullValue,
+                const TransformOp& top
+            );
+
+            //- Synchronize values on boundary faces only.
+            template <class T, class CombineOp, class TransformOp>
+            static void syncBoundaryFaceList
+            (
+                const polyMesh&,
+                UList<T>&,
+                const CombineOp& cop,
+                const TransformOp& top
+            );
+
+
+        // Synchronise point-wise data
+
+            //- Synchronize values on all mesh points.
+            template <class T, class CombineOp>
+            static void syncPointList
+            (
+                const polyMesh& mesh,
+                UList<T>& l,
+                const CombineOp& cop,
+                const T& nullValue
+            )
+            {
+                syncPointList(mesh, l, cop, nullValue, transform());
+            }
+
+            //- Synchronize locations on all mesh points.
+            template <class CombineOp>
+            static void syncPointPositions
+            (
+                const polyMesh& mesh,
+                UList<point>& l,
+                const CombineOp& cop,
+                const point& nullValue
+            )
+            {
+                syncPointList(mesh, l, cop, nullValue, transformPosition());
+            }
+
+            //- Synchronize values on selected mesh points.
+            template <class T, class CombineOp>
+            static void syncPointList
+            (
+                const polyMesh& mesh,
+                const labelList& meshPoints,
+                UList<T>& l,
+                const CombineOp& cop,
+                const T& nullValue
+            )
+            {
+                syncPointList
+                (
+                    mesh,
+                    meshPoints,
+                    l,
+                    cop,
+                    nullValue,
+                    transform()
+                );
+            }
+
+            //- Synchronize locations on selected mesh points.
+            template <class CombineOp>
+            static void syncPointPositions
+            (
+                const polyMesh& mesh,
+                const labelList& meshPoints,
+                UList<point>& l,
+                const CombineOp& cop,
+                const point& nullValue
+            )
+            {
+                syncPointList
+                (
+                    mesh,
+                    meshPoints,
+                    l,
+                    cop,
+                    nullValue,
+                    transformPosition()
+                );
+            }
+
+
+        // Synchronise edge-wise data
+
+            //- Synchronize values on all mesh edges.
+            template <class T, class CombineOp>
+            static void syncEdgeList
+            (
+                const polyMesh& mesh,
+                UList<T>& l,
+                const CombineOp& cop,
+                const T& nullValue
+            )
+            {
+                syncEdgeList(mesh, l, cop, nullValue, transform());
+            }
+
+            //- Synchronize values on all mesh edges.
+            template <class CombineOp>
+            static void syncEdgePositions
+            (
+                const polyMesh& mesh,
+                UList<point>& l,
+                const CombineOp& cop,
+                const point& nullValue
+            )
+            {
+                syncEdgeList(mesh, l, cop, nullValue, transformPosition());
+            }
+
+
+        // Synchronise face-wise data
+
+            //- Synchronize values on boundary faces only.
+            template <class T, class CombineOp>
+            static void syncBoundaryFaceList
+            (
+                const polyMesh& mesh,
+                UList<T>& l,
+                const CombineOp& cop
+            )
+            {
+                syncBoundaryFaceList(mesh, l, cop, transform());
+            }
+
+            //- Synchronize locations on boundary faces only.
+            template <class CombineOp>
+            static void syncBoundaryFacePositions
+            (
+                const polyMesh& mesh,
+                UList<point>& l,
+                const CombineOp& cop
+            )
+            {
+                syncBoundaryFaceList(mesh, l, cop, transformPosition());
+            }
+
+            //- Synchronize values on all mesh faces.
+            template <class T, class CombineOp>
+            static void syncFaceList
+            (
+                const polyMesh& mesh,
+                UList<T>& l,
+                const CombineOp& cop
+            )
+            {
+                SubList<T> bndValues
+                (
+                    l,
+                    mesh.nFaces()-mesh.nInternalFaces(),
+                    mesh.nInternalFaces()
+                );
+
+                syncBoundaryFaceList(mesh, bndValues, cop, transform());
+            }
+
+            //- Synchronize locations on all mesh faces.
+            template <class CombineOp>
+            static void syncFacePositions
+            (
+                const polyMesh& mesh,
+                UList<point>& l,
+                const CombineOp& cop
+            )
+            {
+                SubList<point> bndValues
+                (
+                    l,
+                    mesh.nFaces()-mesh.nInternalFaces(),
+                    mesh.nInternalFaces()
+                );
+                syncBoundaryFaceList(mesh, bndValues, cop, transformPosition());
+            }
+
+            //- Swap coupled boundary face values.
+            template <class T>
+            static void swapBoundaryFaceList
+            (
+                const polyMesh& mesh,
+                UList<T>& l
+            )
+            {
+                syncBoundaryFaceList(mesh, l, eqOp<T>(), transform());
+            }
+
+             //- Swap coupled positions.
+            template <class T>
+            static void swapBoundaryFacePositions
+            (
+                const polyMesh& mesh,
+                UList<T>& l
+            )
+            {
+                syncBoundaryFaceList(mesh, l, eqOp<T>(), transformPosition());
+            }
+
+            //- Swap coupled face values.
+            template <class T>
+            static void swapFaceList
+            (
+                const polyMesh& mesh,
+                UList<T>& l
+            )
+            {
+                SubList<T> bndValues
+                (
+                    l,
+                    mesh.nFaces()-mesh.nInternalFaces(),
+                    mesh.nInternalFaces()
+                );
+                syncBoundaryFaceList(mesh, bndValues, eqOp<T>(), transform());
+            }
+
+        // Sparse versions
+
+            //- Synchronize values on selected points.
+            template <class T, class CombineOp>
+            static void syncPointMap
+            (
+                const polyMesh& mesh,
+                Map<T>& l,
+                const CombineOp& cop
+            )
+            {
+                syncPointMap(mesh, l, cop, transform());
+            }
+
+            //- Synchronize locations on selected points.
+            template <class CombineOp>
+            static void syncPointPositions
+            (
+                const polyMesh& mesh,
+                Map<point>& l,
+                const CombineOp& cop
+            )
+            {
+                syncPointMap(mesh, l, cop, transformPosition());
+            }
+
+            //- Synchronize values on selected edges. Edges are represented
+            //  by the two vertices that make it up so global edges never get
+            //  constructed.
+            template <class T, class CombineOp>
+            static void syncEdgeMap
+            (
+                const polyMesh& mesh,
+                EdgeMap<T>& l,
+                const CombineOp& cop
+            )
+            {
+                syncEdgeMap(mesh, l, cop, transform());
+            }
+
+            //- Synchronize locations on selected edges.
+            template <class T, class CombineOp>
+            static void syncEdgePositions
+            (
+                const polyMesh& mesh,
+                EdgeMap<T>& l,
+                const CombineOp& cop
+            )
+            {
+                syncEdgeMap(mesh, l, cop, transformPosition());
+            }
+
         // PackedList versions
 
             template <unsigned nBits, class CombineOp>
@@ -273,13 +526,62 @@ public:
 
 
 template<>
-void syncTools::separateList(const vectorField&, UList<vector>&);
+void syncTools::transform::operator()
+(
+    const coupledPolyPatch&,
+    Field<label>&
+) const;
+template<>
+void syncTools::transform::operator()
+(
+    const coupledPolyPatch&,
+    Map<label>&
+) const;
+template<>
+void syncTools::transform::operator()
+(
+    const coupledPolyPatch&,
+    EdgeMap<label>&
+) const;
+
 
 template<>
-void syncTools::separateList(const vectorField&, Map<vector>&);
+void syncTools::transform::operator()
+(
+    const coupledPolyPatch&,
+    Field<scalar>&
+) const;
+template<>
+void syncTools::transform::operator()
+(
+    const coupledPolyPatch&,
+    Map<scalar>&
+) const;
+template<>
+void syncTools::transform::operator()
+(
+    const coupledPolyPatch&,
+    EdgeMap<scalar>&
+) const;
 
 template<>
-void syncTools::separateList(const vectorField&, EdgeMap<vector>&);
+void syncTools::transform::operator()
+(
+    const coupledPolyPatch& cpp,
+    Field<bool>& fld
+) const;
+template<>
+void syncTools::transform::operator()
+(
+    const coupledPolyPatch&,
+    Map<bool>&
+) const;
+template<>
+void syncTools::transform::operator()
+(
+    const coupledPolyPatch&,
+    EdgeMap<bool>&
+) const;
 
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

src/OpenFOAM/meshes/polyMesh/zones/faceZone/faceZone.C

@@ -463,9 +463,9 @@ bool Foam::faceZone::checkParallelSync(const bool report) const
             }
         }
         boolList myZoneFace(neiZoneFace);
-        syncTools::swapBoundaryFaceList(mesh, neiZoneFace, false);
+        syncTools::swapBoundaryFaceList(mesh, neiZoneFace);
         boolList myZoneFlip(neiZoneFlip);
-        syncTools::swapBoundaryFaceList(mesh, neiZoneFlip, false);
+        syncTools::swapBoundaryFaceList(mesh, neiZoneFlip);
 
         forAll(*this, i)
         {

src/dynamicFvMesh/dynamicRefineFvMesh/dynamicRefineFvMesh.C

@@ -84,7 +84,7 @@ void Foam::dynamicRefineFvMesh::calculateProtectedCells
     {
         neiLevel[faceI-nInternalFaces()] = cellLevel[faceOwner()[faceI]];
     }
-    syncTools::swapBoundaryFaceList(*this, neiLevel, false);
+    syncTools::swapBoundaryFaceList(*this, neiLevel);
 
 
     while (true)
@@ -122,7 +122,7 @@ void Foam::dynamicRefineFvMesh::calculateProtectedCells
             }
         }
 
-        syncTools::syncFaceList(*this, seedFace, orEqOp<bool>(), false);
+        syncTools::syncFaceList(*this, seedFace, orEqOp<bool>());
 
 
         // Extend unrefineableCell
@@ -846,7 +846,7 @@ void Foam::dynamicRefineFvMesh::extendMarkedCells
         }
     }
 
-    syncTools::syncFaceList(*this, markedFace, orEqOp<bool>(), false);
+    syncTools::syncFaceList(*this, markedFace, orEqOp<bool>());
 
     // Update cells using any markedFace
     for (label faceI = 0; faceI < nInternalFaces(); faceI++)
@@ -933,7 +933,7 @@ Foam::dynamicRefineFvMesh::dynamicRefineFvMesh(const IOobject& io)
         {
             neiLevel[faceI] = cellLevel[faceOwner()[faceI]];
         }
-        syncTools::swapFaceList(*this, neiLevel, false);
+        syncTools::swapFaceList(*this, neiLevel);
 
 
         boolList protectedFace(nFaces(), false);
@@ -965,13 +965,7 @@ Foam::dynamicRefineFvMesh::dynamicRefineFvMesh(const IOobject& io)
             }
         }
 
-        syncTools::syncFaceList
-        (
-            *this,
-            protectedFace,
-            orEqOp<bool>(),
-            false
-        );
+        syncTools::syncFaceList(*this, protectedFace, orEqOp<bool>());
 
         for (label faceI = 0; faceI < nInternalFaces(); faceI++)
         {

src/dynamicMesh/fvMeshDistribute/fvMeshDistribute.C

@@ -29,6 +29,9 @@ License
 #include "faceCoupleInfo.H"
 #include "processorFvPatchField.H"
 #include "processorFvsPatchField.H"
+#include "processorCyclicPolyPatch.H"
+#include "processorCyclicFvPatchField.H"
+#include "processorCyclicFvsPatchField.H"
 #include "polyTopoChange.H"
 #include "removeCells.H"
 #include "polyModifyFace.H"
@@ -128,6 +131,7 @@ void Foam::fvMeshDistribute::printMeshInfo(const fvMesh& mesh)
 {
     Pout<< "Primitives:" << nl
         << "    points       :" << mesh.nPoints() << nl
+        << "    bb           :" << boundBox(mesh.points(), false) << nl
         << "    internalFaces:" << mesh.nInternalFaces() << nl
         << "    faces        :" << mesh.nFaces() << nl
         << "    cells        :" << mesh.nCells() << nl;
@@ -187,7 +191,8 @@ void Foam::fvMeshDistribute::printCoupleInfo
     const primitiveMesh& mesh,
     const labelList& sourceFace,
     const labelList& sourceProc,
-    const labelList& sourceNewProc
+    const labelList& sourcePatch,
+    const labelList& sourceNewNbrProc
 )
 {
     Pout<< nl
@@ -202,7 +207,7 @@ void Foam::fvMeshDistribute::printCoupleInfo
             << " fc:" << mesh.faceCentres()[meshFaceI]
             << " connects to proc:" << sourceProc[bFaceI]
             << "/face:" << sourceFace[bFaceI]
-            << " which will move to proc:" << sourceNewProc[bFaceI]
+            << " which will move to proc:" << sourceNewNbrProc[bFaceI]
             << endl;
     }
 }
@@ -270,32 +275,87 @@ Foam::label Foam::fvMeshDistribute::findNonEmptyPatch() const
 }
 
 
-// Appends processorPolyPatch. Returns patchID.
-Foam::label Foam::fvMeshDistribute::addProcPatch
-(
-    const word& patchName,
-    const label nbrProc
-)
+//// Appends processorPolyPatch. Returns patchID.
+//Foam::label Foam::fvMeshDistribute::addProcPatch
+//(
+//    const word& patchName,
+//    const label nbrProc
+//)
+//{
+//    // Clear local fields and e.g. polyMesh globalMeshData.
+//    mesh_.clearOut();
+//
+//
+//    polyBoundaryMesh& polyPatches =
+//        const_cast<polyBoundaryMesh&>(mesh_.boundaryMesh());
+//    fvBoundaryMesh& fvPatches = const_cast<fvBoundaryMesh&>(mesh_.boundary());
+//
+//    if (polyPatches.findPatchID(patchName) != -1)
+//    {
+//        FatalErrorIn("fvMeshDistribute::addProcPatch(const word&, const label)")
+//            << "Cannot create patch " << patchName << " since already exists."
+//            << nl
+//            << "Current patch names:" << polyPatches.names()
+//            << exit(FatalError);
+//    }
+//
+//
+//
+//    // Add the patch
+//    // ~~~~~~~~~~~~~
+//
+//    label sz = polyPatches.size();
+//
+//    // Add polyPatch
+//    polyPatches.setSize(sz+1);
+//    polyPatches.set
+//    (
+//        sz,
+//        new processorPolyPatch
+//        (
+//            patchName,
+//            0,              // size
+//            mesh_.nFaces(),
+//            sz,
+//            mesh_.boundaryMesh(),
+//            Pstream::myProcNo(),
+//            nbrProc
+//        )
+//    );
+//    fvPatches.setSize(sz+1);
+//    fvPatches.set
+//    (
+//        sz,
+//        fvPatch::New
+//        (
+//            polyPatches[sz],  // point to newly added polyPatch
+//            mesh_.boundary()
+//        )
+//    );
+//
+//    return sz;
+//}
+
+
+// Appends polyPatch. Returns patchID.
+Foam::label Foam::fvMeshDistribute::addPatch(polyPatch* patchPtr)
 {
     // Clear local fields and e.g. polyMesh globalMeshData.
     mesh_.clearOut();
 
-
     polyBoundaryMesh& polyPatches =
         const_cast<polyBoundaryMesh&>(mesh_.boundaryMesh());
     fvBoundaryMesh& fvPatches = const_cast<fvBoundaryMesh&>(mesh_.boundary());
 
-    if (polyPatches.findPatchID(patchName) != -1)
+    if (polyPatches.findPatchID(patchPtr->name()) != -1)
     {
-        FatalErrorIn("fvMeshDistribute::addProcPatch(const word&, const label)")
-            << "Cannot create patch " << patchName << " since already exists."
-            << nl
-            << "Current patch names:" << polyPatches.names()
-            << exit(FatalError);
+        FatalErrorIn("fvMeshDistribute::addPatch(polyPatch*)")
+            << "Cannot create patch " << patchPtr->name()
+            << " since already exists." << nl
+            << "Current patch names:" << polyPatches.names() << exit(FatalError);
     }
 
 
-
     // Add the patch
     // ~~~~~~~~~~~~~
 
@@ -303,20 +363,7 @@ Foam::label Foam::fvMeshDistribute::addProcPatch
 
     // Add polyPatch
     polyPatches.setSize(sz+1);
-    polyPatches.set
-    (
-        sz,
-        new processorPolyPatch
-        (
-            patchName,
-            0,              // size
-            mesh_.nFaces(),
-            sz,
-            mesh_.boundaryMesh(),
-            Pstream::myProcNo(),
-            nbrProc
-        )
-    );
+    polyPatches.set(sz, patchPtr);
     fvPatches.setSize(sz+1);
     fvPatches.set
     (
@@ -624,25 +671,27 @@ void Foam::fvMeshDistribute::getNeighbourData
     const labelList& distribution,
     labelList& sourceFace,
     labelList& sourceProc,
-    labelList& sourceNewProc
+    labelList& sourcePatch,
+    labelList& sourceNewNbrProc
 ) const
 {
     label nBnd = mesh_.nFaces() - mesh_.nInternalFaces();
     sourceFace.setSize(nBnd);
     sourceProc.setSize(nBnd);
-    sourceNewProc.setSize(nBnd);
+    sourcePatch.setSize(nBnd);
+    sourceNewNbrProc.setSize(nBnd);
 
     const polyBoundaryMesh& patches = mesh_.boundaryMesh();
 
     // Get neighbouring meshFace labels and new processor of coupled boundaries.
     labelList nbrFaces(nBnd, -1);
-    labelList nbrNewProc(nBnd, -1);
+    labelList nbrNewNbrProc(nBnd, -1);
 
     forAll(patches, patchI)
     {
         const polyPatch& pp = patches[patchI];
 
-        if (isA<processorPolyPatch>(pp))
+        if (pp.coupled())
         {
             label offset = pp.start() - mesh_.nInternalFaces();
 
@@ -654,7 +703,7 @@ void Foam::fvMeshDistribute::getNeighbourData
             }
 
             // Which processor they will end up on
-            SubList<label>(nbrNewProc, pp.size(), offset).assign
+            SubList<label>(nbrNewNbrProc, pp.size(), offset).assign
             (
                 UIndirectList<label>(distribution, pp.faceCells())()
             );
@@ -663,8 +712,8 @@ void Foam::fvMeshDistribute::getNeighbourData
 
 
     // Exchange the boundary data
-    syncTools::swapBoundaryFaceList(mesh_, nbrFaces, false);
-    syncTools::swapBoundaryFaceList(mesh_, nbrNewProc, false);
+    syncTools::swapBoundaryFaceList(mesh_, nbrFaces);
+    syncTools::swapBoundaryFaceList(mesh_, nbrNewNbrProc);
 
 
     forAll(patches, patchI)
@@ -679,7 +728,7 @@ void Foam::fvMeshDistribute::getNeighbourData
 
             // Check which of the two faces we store.
 
-            if (Pstream::myProcNo() < procPatch.neighbProcNo())
+            if (procPatch.owner())
             {
                 // Use my local face labels
                 forAll(pp, i)
@@ -687,7 +736,7 @@ void Foam::fvMeshDistribute::getNeighbourData
                     label bndI = offset + i;
                     sourceFace[bndI] = pp.start()+i;
                     sourceProc[bndI] = Pstream::myProcNo();
-                    sourceNewProc[bndI] = nbrNewProc[bndI];
+                    sourceNewNbrProc[bndI] = nbrNewNbrProc[bndI];
                 }
             }
             else
@@ -698,7 +747,50 @@ void Foam::fvMeshDistribute::getNeighbourData
                     label bndI = offset + i;
                     sourceFace[bndI] = nbrFaces[bndI];
                     sourceProc[bndI] = procPatch.neighbProcNo();
-                    sourceNewProc[bndI] = nbrNewProc[bndI];
+                    sourceNewNbrProc[bndI] = nbrNewNbrProc[bndI];
+                }
+            }
+
+
+            label patchI = -1;
+            if (isA<processorCyclicPolyPatch>(pp))
+            {
+                patchI = refCast<const processorCyclicPolyPatch>
+                (
+                    pp
+                ).referPatchID();
+            }
+
+            forAll(pp, i)
+            {
+                label bndI = offset + i;
+                sourcePatch[bndI] = patchI;
+            }
+        }
+        else if (isA<cyclicPolyPatch>(pp))
+        {
+            const cyclicPolyPatch& cpp = refCast<const cyclicPolyPatch>(pp);
+
+            if (cpp.owner())
+            {
+                forAll(pp, i)
+                {
+                    label bndI = offset + i;
+                    sourceFace[bndI] = pp.start()+i;
+                    sourceProc[bndI] = Pstream::myProcNo();
+                    sourcePatch[bndI] = patchI;
+                    sourceNewNbrProc[bndI] = nbrNewNbrProc[bndI];
+                }
+            }
+            else
+            {
+                forAll(pp, i)
+                {
+                    label bndI = offset + i;
+                    sourceFace[bndI] = nbrFaces[bndI];
+                    sourceProc[bndI] = Pstream::myProcNo();
+                    sourcePatch[bndI] = patchI;
+                    sourceNewNbrProc[bndI] = nbrNewNbrProc[bndI];
                 }
             }
         }
@@ -708,9 +800,10 @@ void Foam::fvMeshDistribute::getNeighbourData
             forAll(pp, i)
             {
                 label bndI = offset + i;
-                sourceFace[bndI] = patchI;
+                sourceFace[bndI] = -1;
                 sourceProc[bndI] = -1;
-                sourceNewProc[bndI] = -1;
+                sourcePatch[bndI] = patchI;
+                sourceNewNbrProc[bndI] = -1;
             }
         }
     }
@@ -731,16 +824,19 @@ void Foam::fvMeshDistribute::subsetBoundaryData
 
     const labelList& sourceFace,
     const labelList& sourceProc,
-    const labelList& sourceNewProc,
+    const labelList& sourcePatch,
+    const labelList& sourceNewNbrProc,
 
     labelList& subFace,
     labelList& subProc,
-    labelList& subNewProc
+    labelList& subPatch,
+    labelList& subNewNbrProc
 )
 {
     subFace.setSize(mesh.nFaces() - mesh.nInternalFaces());
     subProc.setSize(mesh.nFaces() - mesh.nInternalFaces());
-    subNewProc.setSize(mesh.nFaces() - mesh.nInternalFaces());
+    subPatch.setSize(mesh.nFaces() - mesh.nInternalFaces());
+    subNewNbrProc.setSize(mesh.nFaces() - mesh.nInternalFaces());
 
     forAll(subFace, newBFaceI)
     {
@@ -753,6 +849,7 @@ void Foam::fvMeshDistribute::subsetBoundaryData
         {
             subFace[newBFaceI] = oldFaceI;
             subProc[newBFaceI] = Pstream::myProcNo();
+            subPatch[newBFaceI] = -1;
 
             label oldOwn = oldFaceOwner[oldFaceI];
             label oldNei = oldFaceNeighbour[oldFaceI];
@@ -760,12 +857,12 @@ void Foam::fvMeshDistribute::subsetBoundaryData
             if (oldOwn == cellMap[mesh.faceOwner()[newFaceI]])
             {
                 // We kept the owner side. Where does the neighbour move to?
-                subNewProc[newBFaceI] = oldDistribution[oldNei];
+                subNewNbrProc[newBFaceI] = oldDistribution[oldNei];
             }
             else
             {
                 // We kept the neighbour side.
-                subNewProc[newBFaceI] = oldDistribution[oldOwn];
+                subNewNbrProc[newBFaceI] = oldDistribution[oldOwn];
             }
         }
         else
@@ -775,7 +872,8 @@ void Foam::fvMeshDistribute::subsetBoundaryData
 
             subFace[newBFaceI] = sourceFace[oldBFaceI];
             subProc[newBFaceI] = sourceProc[oldBFaceI];
-            subNewProc[newBFaceI] = sourceNewProc[oldBFaceI];
+            subPatch[newBFaceI] = sourcePatch[oldBFaceI];
+            subNewNbrProc[newBFaceI] = sourceNewNbrProc[oldBFaceI];
         }
     }
 }
@@ -788,11 +886,13 @@ void Foam::fvMeshDistribute::findCouples
     const primitiveMesh& mesh,
     const labelList& sourceFace,
     const labelList& sourceProc,
+    const labelList& sourcePatch,
 
     const label domain,
     const primitiveMesh& domainMesh,
     const labelList& domainFace,
     const labelList& domainProc,
+    const labelList& domainPatch,
 
     labelList& masterCoupledFaces,
     labelList& slaveCoupledFaces
@@ -802,9 +902,16 @@ void Foam::fvMeshDistribute::findCouples
     // with same face+proc.
     HashTable<label, labelPair, labelPair::Hash<> > map(domainFace.size());
 
-    forAll(domainFace, bFaceI)
+    forAll(domainProc, bFaceI)
     {
-        map.insert(labelPair(domainFace[bFaceI], domainProc[bFaceI]), bFaceI);
+        if (domainProc[bFaceI] != -1 && domainPatch[bFaceI] == -1)
+        {
+            map.insert
+            (
+                labelPair(domainFace[bFaceI], domainProc[bFaceI]),
+                bFaceI
+            );
+        }
     }
 
 
@@ -816,7 +923,7 @@ void Foam::fvMeshDistribute::findCouples
 
     forAll(sourceFace, bFaceI)
     {
-        if (sourceProc[bFaceI] != -1)
+        if (sourceProc[bFaceI] != -1 && sourcePatch[bFaceI] == -1)
         {
             labelPair myData(sourceFace[bFaceI], sourceProc[bFaceI]);
 
@@ -934,105 +1041,202 @@ Foam::autoPtr<Foam::mapPolyMesh> Foam::fvMeshDistribute::doRemoveCells
 // the processor patchID.
 void Foam::fvMeshDistribute::addProcPatches
 (
-    const labelList& neighbourNewProc,   // processor that neighbour is on
-    labelList& procPatchID
+    const labelList& nbrProc,       // processor that neighbour is now on
+    const labelList& referPatchID,  // patchID (or -1) I originated from
+    List<Map<label> >& procPatchID
 )
 {
-    // Now use the neighbourFace/Proc to repatch the mesh. These two lists
+    // Now use the neighbourFace/Proc to repatch the mesh. These lists
     // contain for all current boundary faces the global patchID (for non-proc
     // patch) or the processor.
 
-    labelList procPatchSizes(Pstream::nProcs(), 0);
-
-    forAll(neighbourNewProc, bFaceI)
-    {
-        if (neighbourNewProc[bFaceI] != -1)
-        {
-            procPatchSizes[neighbourNewProc[bFaceI]]++;
-        }
-    }
-
-    // Per neighbour processor the label of the processor patch
     procPatchID.setSize(Pstream::nProcs());
 
-    forAll(procPatchSizes, procI)
+    forAll(nbrProc, bFaceI)
     {
-        if (procPatchSizes[procI] > 0)
+        label procI = nbrProc[bFaceI];
+
+        if (procI != -1 && procI != Pstream::myProcNo())
         {
-            const word patchName =
-                "procBoundary"
-              + name(Pstream::myProcNo())
-              + "to"
-              + name(procI);
+            if (!procPatchID[procI].found(referPatchID[bFaceI]))
+            {
+                // No patch for neighbour yet. Is either a normal processor
+                // patch or a processorCyclic patch.
 
+                if (referPatchID[bFaceI] == -1)
+                {
+                    // Ordinary processor boundary
 
-            procPatchID[procI] = addProcPatch(patchName, procI);
-            addPatchFields<volScalarField>
-            (
-                processorFvPatchField<scalar>::typeName
-            );
-            addPatchFields<volVectorField>
-            (
-                processorFvPatchField<vector>::typeName
-            );
-            addPatchFields<volSphericalTensorField>
-            (
-                processorFvPatchField<sphericalTensor>::typeName
-            );
-            addPatchFields<volSymmTensorField>
-            (
-                processorFvPatchField<symmTensor>::typeName
-            );
-            addPatchFields<volTensorField>
-            (
-                processorFvPatchField<tensor>::typeName
-            );
+                    const word patchName =
+                        "procBoundary"
+                      + name(Pstream::myProcNo())
+                      + "to"
+                      + name(procI);
 
-            addPatchFields<surfaceScalarField>
-            (
-                processorFvPatchField<scalar>::typeName
-            );
-            addPatchFields<surfaceVectorField>
-            (
-                processorFvPatchField<vector>::typeName
-            );
-            addPatchFields<surfaceSphericalTensorField>
-            (
-                processorFvPatchField<sphericalTensor>::typeName
-            );
-            addPatchFields<surfaceSymmTensorField>
-            (
-                processorFvPatchField<symmTensor>::typeName
-            );
-            addPatchFields<surfaceTensorField>
-            (
-                processorFvPatchField<tensor>::typeName
-            );
-        }
-        else
-        {
-            procPatchID[procI] = -1;
+                    procPatchID[procI].insert
+                    (
+                        referPatchID[bFaceI],
+                        addPatch
+                        (
+                            new processorPolyPatch
+                            (
+                                patchName,
+                                0,              // size
+                                mesh_.nFaces(),
+                                mesh_.boundaryMesh().size(),
+                                mesh_.boundaryMesh(),
+                                Pstream::myProcNo(),
+                                nbrProc[bFaceI]
+                            )
+                        )
+                    );
+
+                    addPatchFields<volScalarField>
+                    (
+                        processorFvPatchField<scalar>::typeName
+                    );
+                    addPatchFields<volVectorField>
+                    (
+                        processorFvPatchField<vector>::typeName
+                    );
+                    addPatchFields<volSphericalTensorField>
+                    (
+                        processorFvPatchField<sphericalTensor>::typeName
+                    );
+                    addPatchFields<volSymmTensorField>
+                    (
+                        processorFvPatchField<symmTensor>::typeName
+                    );
+                    addPatchFields<volTensorField>
+                    (
+                        processorFvPatchField<tensor>::typeName
+                    );
+
+                    addPatchFields<surfaceScalarField>
+                    (
+                        processorFvPatchField<scalar>::typeName
+                    );
+                    addPatchFields<surfaceVectorField>
+                    (
+                        processorFvPatchField<vector>::typeName
+                    );
+                    addPatchFields<surfaceSphericalTensorField>
+                    (
+                        processorFvPatchField<sphericalTensor>::typeName
+                    );
+                    addPatchFields<surfaceSymmTensorField>
+                    (
+                        processorFvPatchField<symmTensor>::typeName
+                    );
+                    addPatchFields<surfaceTensorField>
+                    (
+                        processorFvPatchField<tensor>::typeName
+                    );
+                }
+                else
+                {
+                    // Processor boundary originating from cyclic
+                    const word& cycName = mesh_.boundaryMesh()
+                    [
+                        referPatchID[bFaceI]
+                    ].name();
+
+                    const word patchName =
+                        "procBoundary"
+                      + name(Pstream::myProcNo())
+                      + "to"
+                      + name(procI)
+                      + "through"
+                      + cycName;
+
+                    procPatchID[procI].insert
+                    (
+                        referPatchID[bFaceI],
+                        addPatch
+                        (
+                            new processorCyclicPolyPatch
+                            (
+                                patchName,
+                                0,              // size
+                                mesh_.nFaces(),
+                                mesh_.boundaryMesh().size(),
+                                mesh_.boundaryMesh(),
+                                Pstream::myProcNo(),
+                                nbrProc[bFaceI],
+                                cycName
+                            )
+                        )
+                    );
+
+                    addPatchFields<volScalarField>
+                    (
+                        processorCyclicFvPatchField<scalar>::typeName
+                    );
+                    addPatchFields<volVectorField>
+                    (
+                        processorCyclicFvPatchField<vector>::typeName
+                    );
+                    addPatchFields<volSphericalTensorField>
+                    (
+                        processorCyclicFvPatchField<sphericalTensor>::typeName
+                    );
+                    addPatchFields<volSymmTensorField>
+                    (
+                        processorCyclicFvPatchField<symmTensor>::typeName
+                    );
+                    addPatchFields<volTensorField>
+                    (
+                        processorCyclicFvPatchField<tensor>::typeName
+                    );
+
+                    addPatchFields<surfaceScalarField>
+                    (
+                        processorCyclicFvPatchField<scalar>::typeName
+                    );
+                    addPatchFields<surfaceVectorField>
+                    (
+                        processorCyclicFvPatchField<vector>::typeName
+                    );
+                    addPatchFields<surfaceSphericalTensorField>
+                    (
+                        processorCyclicFvPatchField<sphericalTensor>::typeName
+                    );
+                    addPatchFields<surfaceSymmTensorField>
+                    (
+                        processorCyclicFvPatchField<symmTensor>::typeName
+                    );
+                    addPatchFields<surfaceTensorField>
+                    (
+                        processorCyclicFvPatchField<tensor>::typeName
+                    );
+                }
+            }
         }
     }
 }
 
 
 // Get boundary faces to be repatched. Is -1 or new patchID
-Foam::labelList Foam::fvMeshDistribute::getProcBoundaryPatch
+Foam::labelList Foam::fvMeshDistribute::getBoundaryPatch
 (
-    const labelList& neighbourNewProc,  // new processor per boundary face
-    const labelList& procPatchID        // patchID
+    const labelList& nbrProc,               // new processor per boundary face
+    const labelList& referPatchID,          // patchID (or -1) I originated from
+    const List<Map<label> >& procPatchID    // per proc the new procPatches
 )
 {
-    labelList patchIDs(neighbourNewProc);
+    labelList patchIDs(nbrProc);
 
-    forAll(neighbourNewProc, bFaceI)
+    forAll(nbrProc, bFaceI)
     {
-        if (neighbourNewProc[bFaceI] != -1)
+        if (nbrProc[bFaceI] == Pstream::myProcNo())
         {
-            label nbrProc = neighbourNewProc[bFaceI];
-
-            patchIDs[bFaceI] = procPatchID[nbrProc];
+            label origPatchI = referPatchID[bFaceI];
+            patchIDs[bFaceI] = origPatchI;
+        }
+        else if (nbrProc[bFaceI] != -1)
+        {
+            label origPatchI = referPatchID[bFaceI];
+            patchIDs[bFaceI] = procPatchID[nbrProc[bFaceI]][origPatchI];
         }
         else
         {
@@ -1055,7 +1259,8 @@ void Foam::fvMeshDistribute::sendMesh
 
     const labelList& sourceFace,
     const labelList& sourceProc,
-    const labelList& sourceNewProc,
+    const labelList& sourcePatch,
+    const labelList& sourceNewNbrProc,
     UOPstream& toDomain
 )
 {
@@ -1191,7 +1396,8 @@ void Foam::fvMeshDistribute::sendMesh
 
         << sourceFace
         << sourceProc
-        << sourceNewProc;
+        << sourcePatch
+        << sourceNewNbrProc;
 
 
     if (debug)
@@ -1212,7 +1418,8 @@ Foam::autoPtr<Foam::fvMesh> Foam::fvMeshDistribute::receiveMesh
     const Time& runTime,
     labelList& domainSourceFace,
     labelList& domainSourceProc,
-    labelList& domainSourceNewProc,
+    labelList& domainSourcePatch,
+    labelList& domainSourceNewNbrProc,
     UIPstream& fromNbr
 )
 {
@@ -1230,7 +1437,8 @@ Foam::autoPtr<Foam::fvMesh> Foam::fvMeshDistribute::receiveMesh
     fromNbr
         >> domainSourceFace
         >> domainSourceProc
-        >> domainSourceNewProc;
+        >> domainSourcePatch
+        >> domainSourceNewNbrProc;
 
     // Construct fvMesh
     autoPtr<fvMesh> domainMeshPtr
@@ -1448,16 +1656,37 @@ Foam::autoPtr<Foam::mapDistributePolyMesh> Foam::fvMeshDistribute::distribute
 
     // physical boundary:
     //     sourceProc = -1
-    //     sourceNewProc = -1
-    //     sourceFace = patchID
-    // coupled boundary:
-    //     sourceProc = proc
-    //     sourceNewProc = distribution[cell on proc]
-    //     sourceFace = face
+    //     sourceNewNbrProc = -1
+    //     sourceFace = -1
+    //     sourcePatch = patchID
+    // processor boundary:
+    //     sourceProc = proc (on owner side)
+    //     sourceNewNbrProc = distribution of coupled cell
+    //     sourceFace = face (on owner side)
+    //     sourcePatch = -1
+    // ?cyclic:
+    // ?    sourceProc = proc
+    // ?    sourceNewNbrProc = distribution of coupled cell
+    // ?    sourceFace = face (on owner side)
+    // ?    sourcePatch = patchID 
+    // processor-cyclic boundary:
+    //     sourceProc = proc (on owner side)
+    //     sourceNewNbrProc = distribution of coupled cell
+    //     sourceFace = face (on owner side)
+    //     sourcePatch = patchID
+
+    labelList sourcePatch;
     labelList sourceFace;
     labelList sourceProc;
-    labelList sourceNewProc;
-    getNeighbourData(distribution, sourceFace, sourceProc, sourceNewProc);
+    labelList sourceNewNbrProc;
+    getNeighbourData
+    (
+        distribution,
+        sourceFace,
+        sourceProc,
+        sourcePatch,
+        sourceNewNbrProc
+    );
 
 
     // Remove meshPhi. Since this would otherwise disappear anyway
@@ -1529,7 +1758,8 @@ Foam::autoPtr<Foam::mapDistributePolyMesh> Foam::fvMeshDistribute::distribute
 
         inplaceReorder(bFaceMap, sourceFace);
         inplaceReorder(bFaceMap, sourceProc);
-        inplaceReorder(bFaceMap, sourceNewProc);
+        inplaceReorder(bFaceMap, sourcePatch);
+        inplaceReorder(bFaceMap, sourceNewNbrProc);
     }
 
 
@@ -1632,7 +1862,8 @@ Foam::autoPtr<Foam::mapDistributePolyMesh> Foam::fvMeshDistribute::distribute
             // Subset the boundary fields (owner/neighbour/processor)
             labelList procSourceFace;
             labelList procSourceProc;
-            labelList procSourceNewProc;
+            labelList procSourcePatch;
+            labelList procSourceNewNbrProc;
 
             subsetBoundaryData
             (
@@ -1647,11 +1878,13 @@ Foam::autoPtr<Foam::mapDistributePolyMesh> Foam::fvMeshDistribute::distribute
 
                 sourceFace,
                 sourceProc,
-                sourceNewProc,
+                sourcePatch,
+                sourceNewNbrProc,
 
                 procSourceFace,
                 procSourceProc,
-                procSourceNewProc
+                procSourcePatch,
+                procSourceNewNbrProc
             );
 
 
@@ -1668,7 +1901,8 @@ Foam::autoPtr<Foam::mapDistributePolyMesh> Foam::fvMeshDistribute::distribute
 
                 procSourceFace,
                 procSourceProc,
-                procSourceNewProc,
+                procSourcePatch,
+                procSourceNewNbrProc,
                 str
             );
             sendFields<volScalarField>(recvProc, volScalars, subsetter, str);
@@ -1771,7 +2005,8 @@ Foam::autoPtr<Foam::mapDistributePolyMesh> Foam::fvMeshDistribute::distribute
         // fields
         labelList domainSourceFace;
         labelList domainSourceProc;
-        labelList domainSourceNewProc;
+        labelList domainSourcePatch;
+        labelList domainSourceNewNbrProc;
 
         subsetBoundaryData
         (
@@ -1786,16 +2021,19 @@ Foam::autoPtr<Foam::mapDistributePolyMesh> Foam::fvMeshDistribute::distribute
 
             sourceFace,
             sourceProc,
-            sourceNewProc,
+            sourcePatch,
+            sourceNewNbrProc,
 
             domainSourceFace,
             domainSourceProc,
-            domainSourceNewProc
+            domainSourcePatch,
+            domainSourceNewNbrProc
         );
 
         sourceFace.transfer(domainSourceFace);
         sourceProc.transfer(domainSourceProc);
-        sourceNewProc.transfer(domainSourceNewProc);
+        sourcePatch.transfer(domainSourcePatch);
+        sourceNewNbrProc.transfer(domainSourceNewNbrProc);
     }
 
 
@@ -1848,7 +2086,8 @@ Foam::autoPtr<Foam::mapDistributePolyMesh> Foam::fvMeshDistribute::distribute
             // Receive from sendProc
             labelList domainSourceFace;
             labelList domainSourceProc;
-            labelList domainSourceNewProc;
+            labelList domainSourcePatch;
+            labelList domainSourceNewNbrProc;
 
             autoPtr<fvMesh> domainMeshPtr;
             PtrList<volScalarField> vsf;
@@ -1874,10 +2113,14 @@ Foam::autoPtr<Foam::mapDistributePolyMesh> Foam::fvMeshDistribute::distribute
                     const_cast<Time&>(mesh_.time()),
                     domainSourceFace,
                     domainSourceProc,
-                    domainSourceNewProc,
+                    domainSourcePatch,
+                    domainSourceNewNbrProc,
                     str
                 );
                 fvMesh& domainMesh = domainMeshPtr();
+                // Force construction of various on mesh.
+                //(void)domainMesh.globalData();
+
 
                 // Receive fields. Read as single dictionary because
                 // of problems reading consecutive fields from single stream.
@@ -2006,11 +2249,13 @@ Foam::autoPtr<Foam::mapDistributePolyMesh> Foam::fvMeshDistribute::distribute
 
                 sourceFace,
                 sourceProc,
+                sourcePatch,
 
                 sendProc,
                 domainMesh,
                 domainSourceFace,
                 domainSourceProc,
+                domainSourcePatch,
 
                 masterCoupledFaces,
                 slaveCoupledFaces
@@ -2045,33 +2290,38 @@ Foam::autoPtr<Foam::mapDistributePolyMesh> Foam::fvMeshDistribute::distribute
             // Update mesh data: sourceFace,sourceProc for added
             // mesh.
 
-            sourceFace =
-                mapBoundaryData
-                (
-                    mesh_,
-                    map(),
-                    sourceFace,
-                    domainMesh.nInternalFaces(),
-                    domainSourceFace
-                );
-            sourceProc =
-                mapBoundaryData
-                (
-                    mesh_,
-                    map(),
-                    sourceProc,
-                    domainMesh.nInternalFaces(),
-                    domainSourceProc
-                );
-            sourceNewProc =
-                mapBoundaryData
-                (
-                    mesh_,
-                    map(),
-                    sourceNewProc,
-                    domainMesh.nInternalFaces(),
-                    domainSourceNewProc
-                );
+            sourceFace = mapBoundaryData
+            (
+                mesh_,
+                map(),
+                sourceFace,
+                domainMesh.nInternalFaces(),
+                domainSourceFace
+            );
+            sourceProc = mapBoundaryData
+            (
+                mesh_,
+                map(),
+                sourceProc,
+                domainMesh.nInternalFaces(),
+                domainSourceProc
+            );
+            sourcePatch = mapBoundaryData
+            (
+                mesh_,
+                map(),
+                sourcePatch,
+                domainMesh.nInternalFaces(),
+                domainSourcePatch
+            );
+            sourceNewNbrProc = mapBoundaryData
+            (
+                mesh_,
+                map(),
+                sourceNewNbrProc,
+                domainMesh.nInternalFaces(),
+                domainSourceNewNbrProc
+            );
 
             // Update all addressing so xxProcAddressing points to correct item
             // in masterMesh.
@@ -2141,11 +2391,13 @@ Foam::autoPtr<Foam::mapDistributePolyMesh> Foam::fvMeshDistribute::distribute
     // Add processorPatches
     // ~~~~~~~~~~~~~~~~~~~~
 
-    // Per neighbour processor the patchID to it (or -1).
-    labelList procPatchID;
+    // Per neighbour processor, per originating patch, the patchID
+    // For faces resulting from internal faces or normal processor patches
+    // the originating patch is -1. For cyclics this is the cyclic patchID.
+    List<Map<label> > procPatchID;
 
-    // Add processor patches.
-    addProcPatches(sourceNewProc, procPatchID);
+    // Add processor and processorCyclic patches.
+    addProcPatches(sourceNewNbrProc, sourcePatch, procPatchID);
 
     // Put faces into correct patch. Note that we now have proper
     // processorPolyPatches again so repatching will take care of coupled face
@@ -2154,9 +2406,10 @@ Foam::autoPtr<Foam::mapDistributePolyMesh> Foam::fvMeshDistribute::distribute
     // Get boundary faces to be repatched. Is -1 or new patchID
     labelList newPatchID
     (
-        getProcBoundaryPatch
+        getBoundaryPatch
         (
-            sourceNewProc,
+            sourceNewNbrProc,
+            sourcePatch,
             procPatchID
         )
     );

src/dynamicMesh/fvMeshDistribute/fvMeshDistribute.H

@@ -102,8 +102,8 @@ class fvMeshDistribute
             //- Find patch to put exposed faces into.
             label findNonEmptyPatch() const;
 
-            //- Appends processorPolyPatch. Returns patchID.
-            label addProcPatch(const word& patchName, const label nbrProc);
+            //- Appends polyPatch. Returns patchID.
+            label addPatch(polyPatch*);
 
             //- Add patch field
             template<class GeoField>
@@ -169,6 +169,7 @@ class fvMeshDistribute
                 const labelList& distribution,
                 labelList& sourceFace,
                 labelList& sourceProc,
+                labelList& sourcePatch,
                 labelList& sourceNewProc
             ) const;
 
@@ -186,10 +187,12 @@ class fvMeshDistribute
 
                 const labelList& sourceFace,
                 const labelList& sourceProc,
+                const labelList& sourcePatch,
                 const labelList& sourceNewProc,
 
                 labelList& subFace,
                 labelList& subProc,
+                labelList& subPatch,
                 labelList& subNewProc
             );
 
@@ -200,11 +203,13 @@ class fvMeshDistribute
                 const primitiveMesh&,
                 const labelList& sourceFace,
                 const labelList& sourceProc,
+                const labelList& sourcePatch,
 
                 const label domain,
                 const primitiveMesh& domainMesh,
                 const labelList& domainFace,
                 const labelList& domainProc,
+                const labelList& domainPatch,
 
                 labelList& masterCoupledFaces,
                 labelList& slaveCoupledFaces
@@ -235,15 +240,17 @@ class fvMeshDistribute
             //  proc the processor patchID.
             void addProcPatches
             (
-                const labelList&, // processor that neighbour is on
-                labelList& procPatchID
+                const labelList&, // processor that neighbour is now on
+                const labelList&, // -1 or patch that face originated from 
+                List<Map<label> >& procPatchID
             );
 
             //- Get boundary faces to be repatched. Is -1 or new patchID
-            static labelList getProcBoundaryPatch
+            static labelList getBoundaryPatch
             (
-                const labelList& neighbourNewProc,// new processor per b. face
-                const labelList& procPatchID      // patchID
+                const labelList& neighbourNewProc,  // new processor per b. face
+                const labelList& referPatchID,      // -1 or original patch
+                const List<Map<label> >& procPatchID// patchID
             );
 
             //- Send mesh and coupling data.
@@ -256,6 +263,7 @@ class fvMeshDistribute
                 const wordList& cellZoneNames,
                 const labelList& sourceFace,
                 const labelList& sourceProc,
+                const labelList& sourcePatch,
                 const labelList& sourceNewProc,
                 UOPstream& toDomain
             );
@@ -279,6 +287,7 @@ class fvMeshDistribute
                 const Time& runTime,
                 labelList& domainSourceFace,
                 labelList& domainSourceProc,
+                labelList& domainSourcePatch,
                 labelList& domainSourceNewProc,
                 UIPstream& fromNbr
             );
@@ -328,6 +337,7 @@ public:
                 const primitiveMesh&,
                 const labelList&,
                 const labelList&,
+                const labelList&,
                 const labelList&
             );
 

src/dynamicMesh/motionSmoother/motionSmoother.C

@@ -40,6 +40,80 @@ defineTypeNameAndDebug(Foam::motionSmoother, 0);
 
 // * * * * * * * * * * * * * Private Member Functions  * * * * * * * * * * * //
 
+void Foam::motionSmoother::testSyncPositions
+(
+    const pointField& fld,
+    const scalar maxMag
+) const
+{
+    pointField syncedFld(fld);
+
+    syncTools::syncPointPositions
+    (
+        mesh_,
+        syncedFld,
+        minEqOp<point>(),           // combine op
+        point(GREAT,GREAT,GREAT)    // null
+    );
+
+    forAll(syncedFld, i)
+    {
+        if (mag(syncedFld[i] - fld[i]) > maxMag)
+        {
+            FatalErrorIn
+            (
+                "motionSmoother::testSyncPositions(const pointField&)"
+            )   << "On point " << i << " point:" << fld[i]
+                << " synchronised point:" << syncedFld[i]
+                << abort(FatalError);
+        }
+    }    
+}
+
+
+//Foam::tmp<Foam::scalarField> Foam::motionSmoother::sumWeights
+//(
+//    const scalarField& edgeWeight
+//) const
+//{
+//    tmp<scalarField> tsumWeight
+//    (
+//        new scalarField
+//        (
+//            mesh_.nPoints(),
+//            0.0
+//        )
+//    );
+//    scalarField& sumWeight = tsumWeight();
+//
+//    const edgeList& edges = mesh_.edges();
+//
+//    forAll(edges, edgeI)
+//    {
+//        if (isMasterEdge_.get(edgeI) == 1)
+//        {
+//            const edge& e = edges[edgeI];
+//            const scalar w = edgeWeight[edgeI];
+//            sumWeight[e[0]] += w;
+//            sumWeight[e[1]] += w;
+//        }
+//    }
+//
+//
+//    // Add coupled contributions
+//    // ~~~~~~~~~~~~~~~~~~~~~~~~~
+//    syncTools::syncPointList
+//    (
+//        mesh,
+//        sumWeight,
+//        plusEqOp<scalar>(),
+//        scalar(0)               // null value
+//    );
+//
+//    return tsumWeight;
+//}
+
+
 // From pointPatchInterpolation
 void Foam::motionSmoother::makePatchPatchAddressing()
 {
@@ -209,8 +283,7 @@ void Foam::motionSmoother::minSmooth
     tmp<pointScalarField> tavgFld = avg
     (
         fld,
-        scalarField(mesh_.nEdges(), 1.0),   // uniform weighting
-        false                               // fld is not position.
+        scalarField(mesh_.nEdges(), 1.0)    // uniform weighting
     );
     const pointScalarField& avgFld = tavgFld();
 
@@ -243,8 +316,7 @@ void Foam::motionSmoother::minSmooth
     tmp<pointScalarField> tavgFld = avg
     (
         fld,
-        scalarField(mesh_.nEdges(), 1.0),   // uniform weighting
-        false                               // fld is not position.
+        scalarField(mesh_.nEdges(), 1.0)    // uniform weighting
     );
     const pointScalarField& avgFld = tavgFld();
 
@@ -612,8 +684,7 @@ void Foam::motionSmoother::setDisplacement(pointField& patchDisp)
         mesh_,
         displacement_,
         maxMagEqOp(),   // combine op
-        vector::zero,   // null value
-        false           // no separation
+        vector::zero    // null value
     );
 
     // Adapt the fixedValue bc's (i.e. copy internal point data to
@@ -718,8 +789,7 @@ void Foam::motionSmoother::correctBoundaryConditions
         mesh_,
         displacement,
         maxMagEqOp(),           // combine op
-        vector::zero,           // null value
-        false                   // no separation
+        vector::zero            // null value
     );
 }
 
@@ -769,14 +839,7 @@ Foam::tmp<Foam::scalarField> Foam::motionSmoother::movePoints
     {
         Pout<< "motionSmoother::movePoints : testing sync of newPoints."
             << endl;
-        testSyncField
-        (
-            newPoints,
-            minEqOp<point>(),           // combine op
-            vector(GREAT,GREAT,GREAT),  // null
-            true,                       // separation
-            1E-6*mesh_.bounds().mag()
-        );
+        testSyncPositions(newPoints, 1E-6*mesh_.bounds().mag());
     }
 
     tmp<scalarField> tsweptVol = mesh_.movePoints(newPoints);
@@ -894,8 +957,7 @@ bool Foam::motionSmoother::scaleMesh
         mesh_,
         displacement_,
         maxMagEqOp(),
-        vector::zero,   // null value
-        false           // no separation
+        vector::zero    // null value
     );
 
     // Set newPoints as old + scale*displacement
@@ -926,7 +988,6 @@ bool Foam::motionSmoother::scaleMesh
                 totalDisplacement,
                 maxMagEqOp(),
                 vector::zero,   // null value
-                false,          // separation
                 1E-6*mesh_.bounds().mag()
             );
         }
@@ -1056,8 +1117,7 @@ bool Foam::motionSmoother::scaleMesh
             mesh_,
             scale_,
             maxEqOp<scalar>(),
-            -GREAT,             // null value
-            false               // no separation
+            -GREAT              // null value
         );
 
 

src/dynamicMesh/motionSmoother/motionSmoother.H

@@ -183,8 +183,15 @@ class motionSmoother
         tmp<GeometricField<Type, pointPatchField, pointMesh> > avg
         (
             const GeometricField<Type, pointPatchField, pointMesh>& fld,
-            const scalarField& edgeWeight,
-            const bool separation
+            const scalarField& edgeWeight
+        ) const;
+
+        //- Average postion of connected points.
+        template <class Type>
+        tmp<GeometricField<Type, pointPatchField, pointMesh> > avgPositions
+        (
+            const GeometricField<Type, pointPatchField, pointMesh>& fld,
+            const scalarField& edgeWeight
         ) const;
 
         //- Check constraints
@@ -201,17 +208,19 @@ class motionSmoother
             GeometricField<Type, pointPatchField, pointMesh>&
         ) const;
 
-        //- Test synchronisation of pointField
+        //- Test synchronisation of generic field (not positions!) on points
         template<class Type, class CombineOp>
         void testSyncField
         (
             const Field<Type>&,
             const CombineOp& cop,
             const Type& zero,
-            const bool separation,
             const scalar maxMag
         ) const;
 
+        //- Test synchronisation of points
+        void testSyncPositions(const pointField&, const scalar maxMag) const;
+
         //- Assemble tensors for multi-patch constraints
         void makePatchPatchAddressing();
 
@@ -476,14 +485,13 @@ public:
 
             // Helper functions to manipulate displacement vector.
 
-                //- Fully explicit smoothing of internal points with varying
-                //  diffusivity.
+                //- Fully explicit smoothing of fields (not positions)
+                //  of internal points with varying diffusivity.
                 template <class Type>
                 void smooth
                 (
                     const GeometricField<Type, pointPatchField, pointMesh>& fld,
                     const scalarField& edgeWeight,
-                    const bool separation,
                     GeometricField<Type, pointPatchField, pointMesh>& newFld
                 ) const;
 };

src/dynamicMesh/motionSmoother/motionSmootherTemplates.C

@@ -155,11 +155,10 @@ void Foam::motionSmoother::applyCornerConstraints
 // Average of connected points.
 template <class Type>
 Foam::tmp<Foam::GeometricField<Type, Foam::pointPatchField, Foam::pointMesh> >
- Foam::motionSmoother::avg
+Foam::motionSmoother::avg
 (
     const GeometricField<Type, pointPatchField, pointMesh>& fld,
-    const scalarField& edgeWeight,
-    const bool separation
+    const scalarField& edgeWeight
 ) const
 {
     tmp<GeometricField<Type, pointPatchField, pointMesh> > tres
@@ -172,7 +171,8 @@ Foam::tmp<Foam::GeometricField<Type, Foam::pointPatchField, Foam::pointMesh> >
                 fld.time().timeName(),
                 fld.db(),
                 IOobject::NO_READ,
-                IOobject::NO_WRITE
+                IOobject::NO_WRITE,
+                false
             ),
             fld.mesh(),
             dimensioned<Type>("zero", fld.dimensions(), pTraits<Type>::zero)
@@ -217,17 +217,14 @@ Foam::tmp<Foam::GeometricField<Type, Foam::pointPatchField, Foam::pointMesh> >
         mesh,
         res,
         plusEqOp<Type>(),
-        pTraits<Type>::zero,    // null value
-        separation              // separation
+        pTraits<Type>::zero     // null value
     );
-
     syncTools::syncPointList
     (
         mesh,
         sumWeight,
         plusEqOp<scalar>(),
-        scalar(0),              // null value
-        false                   // separation
+        scalar(0)               // null value
     );
 
 
@@ -260,16 +257,10 @@ void Foam::motionSmoother::smooth
 (
     const GeometricField<Type, pointPatchField, pointMesh>& fld,
     const scalarField& edgeWeight,
-    const bool separation,
     GeometricField<Type, pointPatchField, pointMesh>& newFld
 ) const
 {
-    tmp<pointVectorField> tavgFld = avg
-    (
-        fld,
-        edgeWeight, // weighting
-        separation  // whether to apply separation vector
-    );
+    tmp<pointVectorField> tavgFld = avg(fld, edgeWeight);
     const pointVectorField& avgFld = tavgFld();
 
     forAll(fld, pointI)
@@ -285,14 +276,13 @@ void Foam::motionSmoother::smooth
 }
 
 
-//- Test synchronisation of pointField
+//- Test synchronisation of generic field (not positions!) on points
 template<class Type, class CombineOp>
 void Foam::motionSmoother::testSyncField
 (
     const Field<Type>& fld,
     const CombineOp& cop,
     const Type& zero,
-    const bool separation,
     const scalar maxMag
 ) const
 {
@@ -309,13 +299,11 @@ void Foam::motionSmoother::testSyncField
         mesh_,
         syncedFld,
         cop,
-        zero,       // null value
-        separation  // separation
+        zero
     );
 
     forAll(syncedFld, i)
     {
-        if (syncedFld[i] != fld[i])
         if (mag(syncedFld[i] - fld[i]) > maxMag)
         {
             FatalErrorIn

src/dynamicMesh/motionSmoother/polyMeshGeometry/polyMeshGeometry.C

@@ -425,13 +425,13 @@ bool Foam::polyMeshGeometry::checkFaceDotProduct
 
 
     // Calculate coupled cell centre
-    vectorField neiCc(mesh.nFaces()-mesh.nInternalFaces());
+    pointField neiCc(mesh.nFaces()-mesh.nInternalFaces());
 
     for (label faceI = mesh.nInternalFaces(); faceI < mesh.nFaces(); faceI++)
     {
         neiCc[faceI-mesh.nInternalFaces()] = cellCentres[own[faceI]];
     }
-    syncTools::swapBoundaryFaceList(mesh, neiCc, true);
+    syncTools::swapBoundaryFacePositions(mesh, neiCc);
 
 
     scalar minDDotS = GREAT;
@@ -927,13 +927,13 @@ bool Foam::polyMeshGeometry::checkFaceSkewness
     const polyBoundaryMesh& patches = mesh.boundaryMesh();
 
     // Calculate coupled cell centre
-    vectorField neiCc(mesh.nFaces()-mesh.nInternalFaces());
+    pointField neiCc(mesh.nFaces()-mesh.nInternalFaces());
 
     for (label faceI = mesh.nInternalFaces(); faceI < mesh.nFaces(); faceI++)
     {
         neiCc[faceI-mesh.nInternalFaces()] = cellCentres[own[faceI]];
     }
-    syncTools::swapBoundaryFaceList(mesh, neiCc, true);
+    syncTools::swapBoundaryFacePositions(mesh, neiCc);
 
 
     scalar maxSkew = 0;
@@ -1135,13 +1135,13 @@ bool Foam::polyMeshGeometry::checkFaceWeights
     const polyBoundaryMesh& patches = mesh.boundaryMesh();
 
     // Calculate coupled cell centre
-    vectorField neiCc(mesh.nFaces()-mesh.nInternalFaces());
+    pointField neiCc(mesh.nFaces()-mesh.nInternalFaces());
 
     for (label faceI = mesh.nInternalFaces(); faceI < mesh.nFaces(); faceI++)
     {
         neiCc[faceI-mesh.nInternalFaces()] = cellCentres[own[faceI]];
     }
-    syncTools::swapBoundaryFaceList(mesh, neiCc, true);
+    syncTools::swapBoundaryFacePositions(mesh, neiCc);
 
 
     scalar minWeight = GREAT;
@@ -1298,7 +1298,7 @@ bool Foam::polyMeshGeometry::checkVolRatio
     {
         neiVols[faceI-mesh.nInternalFaces()] = cellVolumes[own[faceI]];
     }
-    syncTools::swapBoundaryFaceList(mesh, neiVols, true);
+    syncTools::swapBoundaryFaceList(mesh, neiVols);
 
 
     scalar minRatio = GREAT;
@@ -1641,13 +1641,13 @@ bool Foam::polyMeshGeometry::checkFaceTwist
     const polyBoundaryMesh& patches = mesh.boundaryMesh();
 
     // Calculate coupled cell centre
-    vectorField neiCc(mesh.nFaces()-mesh.nInternalFaces());
+    pointField neiCc(mesh.nFaces()-mesh.nInternalFaces());
 
     for (label faceI = mesh.nInternalFaces(); faceI < mesh.nFaces(); faceI++)
     {
         neiCc[faceI-mesh.nInternalFaces()] = cellCentres[own[faceI]];
     }
-    syncTools::swapBoundaryFaceList(mesh, neiCc, true);
+    syncTools::swapBoundaryFacePositions(mesh, neiCc);
 
     forAll(checkFaces, i)
     {

src/dynamicMesh/polyTopoChange/polyTopoChange/addPatchCellLayer.C

@@ -34,6 +34,7 @@ License
 #include "polyModifyFace.H"
 #include "polyAddCell.H"
 #include "globalIndex.H"
+#include "dummyTransform.H"
 
 // * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
 
@@ -103,8 +104,8 @@ Foam::labelListList Foam::addPatchCellLayer::calcGlobalEdgeFaces
         mesh,
         globalEdgeFaces,
         uniqueEqOp(),
-        labelList(),    // null value
-        false           // no separation
+        labelList(),            // null value
+        Foam::dummyTransform()  // dummy transform
     );
 
     // Extract pp part
@@ -636,7 +637,7 @@ void Foam::addPatchCellLayer::setRefinement
         {
             labelList n(mesh_.nPoints(), 0);
             UIndirectList<label>(n, meshPoints) = nPointLayers;
-            syncTools::syncPointList(mesh_, n, maxEqOp<label>(), 0, false);
+            syncTools::syncPointList(mesh_, n, maxEqOp<label>(), 0);
 
             // Non-synced
             forAll(meshPoints, i)
@@ -680,8 +681,7 @@ void Foam::addPatchCellLayer::setRefinement
                 mesh_,
                 nFromFace,
                 maxEqOp<label>(),
-                0,
-                false
+                0
             );
 
             forAll(nPointLayers, i)
@@ -718,8 +718,7 @@ void Foam::addPatchCellLayer::setRefinement
                 mesh_,
                 d,
                 minEqOp<vector>(),
-                vector::max,
-                false
+                vector::max
             );
 
             forAll(meshPoints, i)
@@ -1190,8 +1189,7 @@ void Foam::addPatchCellLayer::setRefinement
             mesh_,
             meshEdgeLayers,
             maxEqOp<label>(),
-            0,                  // initial value
-            false               // no separation
+            0                   // initial value
         );
 
         forAll(meshEdges, edgeI)

src/dynamicMesh/polyTopoChange/polyTopoChange/combineFaces.C

@@ -708,8 +708,7 @@ void Foam::combineFaces::setRefinement
         mesh_,
         nPointFaces,
         plusEqOp<label>(),
-        0,                  // null value
-        false               // no separation
+        0                   // null value
     );
 
     // Remove all unused points. Store position if undoable.

src/dynamicMesh/polyTopoChange/polyTopoChange/hexRef8.C

@@ -412,8 +412,7 @@ Foam::scalar Foam::hexRef8::getLevel0EdgeLength() const
             mesh_,
             edgeLevel,
             ifEqEqOp<labelMax>(),
-            labelMin,
-            false               // no separation
+            labelMin
         );
 
         // Now use the edgeLevel with a valid value to determine the
@@ -1618,7 +1617,7 @@ Foam::label Foam::hexRef8::faceConsistentRefinement
     }
 
     // Swap to neighbour
-    syncTools::swapBoundaryFaceList(mesh_, neiLevel, false);
+    syncTools::swapBoundaryFaceList(mesh_, neiLevel);
 
     // Now we have neighbour value see which cells need refinement
     forAll(neiLevel, i)
@@ -1700,7 +1699,7 @@ void Foam::hexRef8::checkWantedRefinementLevels
     }
 
     // Swap to neighbour
-    syncTools::swapBoundaryFaceList(mesh_, neiLevel, false);
+    syncTools::swapBoundaryFaceList(mesh_, neiLevel);
 
     // Now we have neighbour value see which cells need refinement
     forAll(neiLevel, i)
@@ -2369,8 +2368,7 @@ Foam::labelList Foam::hexRef8::consistentSlowRefinement
             mesh_,
             maxPointCount,
             maxEqOp<label>(),
-            labelMin,           // null value
-            false               // no separation
+            labelMin            // null value
         );
 
         // Update allFaceInfo from maxPointCount for all points to check
@@ -2509,9 +2507,9 @@ Foam::labelList Foam::hexRef8::consistentSlowRefinement
         }
 
         // Swap to neighbour
-        syncTools::swapBoundaryFaceList(mesh_, neiLevel, false);
-        syncTools::swapBoundaryFaceList(mesh_, neiCount, false);
-        syncTools::swapBoundaryFaceList(mesh_, neiRefCount, false);
+        syncTools::swapBoundaryFaceList(mesh_, neiLevel);
+        syncTools::swapBoundaryFaceList(mesh_, neiCount);
+        syncTools::swapBoundaryFaceList(mesh_, neiRefCount);
 
         // Now we have neighbour value see which cells need refinement
         forAll(neiLevel, i)
@@ -3156,8 +3154,7 @@ Foam::labelListList Foam::hexRef8::setRefinement
         mesh_,
         edgeMidPoint,
         maxEqOp<label>(),
-        labelMin,
-        false               // no separation
+        labelMin
     );
 
 
@@ -3179,13 +3176,12 @@ Foam::labelListList Foam::hexRef8::setRefinement
                 edgeMids[edgeI] = mesh_.edges()[edgeI].centre(mesh_.points());
             }
         }
-        syncTools::syncEdgeList
+        syncTools::syncEdgePositions
         (
             mesh_,
             edgeMids,
             maxEqOp<vector>(),
-            point(-GREAT, -GREAT, -GREAT),
-            true               // apply separation
+            point(-GREAT, -GREAT, -GREAT)
         );
 
 
@@ -3310,7 +3306,7 @@ Foam::labelListList Foam::hexRef8::setRefinement
         }
 
         // Swap.
-        syncTools::swapBoundaryFaceList(mesh_, newNeiLevel, false);
+        syncTools::swapBoundaryFaceList(mesh_, newNeiLevel);
 
         // So now we have information on the neighbour.
 
@@ -3342,8 +3338,7 @@ Foam::labelListList Foam::hexRef8::setRefinement
     (
         mesh_,
         faceMidPoint,
-        maxEqOp<label>(),
-        false
+        maxEqOp<label>()
     );
 
 
@@ -3369,12 +3364,11 @@ Foam::labelListList Foam::hexRef8::setRefinement
                 bFaceMids[i] = mesh_.faceCentres()[faceI];
             }
         }
-        syncTools::syncBoundaryFaceList
+        syncTools::syncBoundaryFacePositions
         (
             mesh_,
             bFaceMids,
-            maxEqOp<vector>(),
-            true               // apply separation
+            maxEqOp<vector>()
         );
 
         forAll(faceMidPoint, faceI)
@@ -4404,7 +4398,7 @@ void Foam::hexRef8::checkMesh() const
         }
 
         // Replace data on coupled patches with their neighbour ones.
-        syncTools::swapBoundaryFaceList(mesh_, nei, false);
+        syncTools::swapBoundaryFaceList(mesh_, nei);
 
         const polyBoundaryMesh& patches = mesh_.boundaryMesh();
 
@@ -4459,7 +4453,7 @@ void Foam::hexRef8::checkMesh() const
         }
 
         // Replace data on coupled patches with their neighbour ones.
-        syncTools::swapBoundaryFaceList(mesh_, neiFaceAreas, false);
+        syncTools::swapBoundaryFaceList(mesh_, neiFaceAreas);
 
         forAll(neiFaceAreas, i)
         {
@@ -4502,7 +4496,7 @@ void Foam::hexRef8::checkMesh() const
         }
 
         // Replace data on coupled patches with their neighbour ones.
-        syncTools::swapBoundaryFaceList(mesh_, nVerts, false);
+        syncTools::swapBoundaryFaceList(mesh_, nVerts);
 
         forAll(nVerts, i)
         {
@@ -4551,7 +4545,7 @@ void Foam::hexRef8::checkMesh() const
         // Replace data on coupled patches with their neighbour ones. Apply
         // rotation transformation (but not separation since is relative vector
         // to point on same face.
-        syncTools::swapBoundaryFaceList(mesh_, anchorPoints, false);
+        syncTools::swapBoundaryFaceList(mesh_, anchorPoints);
 
         forAll(anchorPoints, i)
         {
@@ -4656,7 +4650,7 @@ void Foam::hexRef8::checkRefinementLevels
         }
 
         // No separation
-        syncTools::swapBoundaryFaceList(mesh_, neiLevel, false);
+        syncTools::swapBoundaryFaceList(mesh_, neiLevel);
 
         forAll(neiLevel, i)
         {
@@ -4698,8 +4692,7 @@ void Foam::hexRef8::checkRefinementLevels
             mesh_,
             syncPointLevel,
             minEqOp<label>(),
-            labelMax,
-            false               // no separation
+            labelMax
         );
 
 
@@ -4746,8 +4739,7 @@ void Foam::hexRef8::checkRefinementLevels
             mesh_,
             maxPointLevel,
             maxEqOp<label>(),
-            labelMin,           // null value
-            false               // no separation
+            labelMin            // null value
         );
 
         // Check 2:1 across boundary points
@@ -5197,7 +5189,7 @@ Foam::labelList Foam::hexRef8::consistentUnrefinement
         }
 
         // Swap to neighbour
-        syncTools::swapBoundaryFaceList(mesh_, neiLevel, false);
+        syncTools::swapBoundaryFaceList(mesh_, neiLevel);
 
         forAll(neiLevel, i)
         {

src/dynamicMesh/polyTopoChange/polyTopoChange/localPointRegion.C

@@ -29,6 +29,7 @@ License
 #include "mapPolyMesh.H"
 #include "globalIndex.H"
 #include "indirectPrimitivePatch.H"
+#include "dummyTransform.H"
 
 // * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
 
@@ -57,15 +58,6 @@ public:
     };
 };
 
-
-// Dummy transform for faces. Used in synchronisation
-void transformList
-(
-    const tensorField& rotTensor,
-    UList<face>& field
-)
-{};
-
 }
 
 // * * * * * * * * * * * * * Private Member Functions  * * * * * * * * * * * //
@@ -263,8 +255,7 @@ void Foam::localPointRegion::calcPointRegions
         mesh,
         candidatePoint,
         orEqOp<bool>(),
-        false,              // nullValue
-        false               // applySeparation
+        false               // nullValue
     );
 
 
@@ -419,12 +410,18 @@ void Foam::localPointRegion::calcPointRegions
         // Transport minimum across coupled faces
         // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
-        syncTools::syncFaceList
+        SubList<face> l
+        (
+            minRegion,
+            mesh.nFaces()-mesh.nInternalFaces(),
+            mesh.nInternalFaces()
+        );
+        syncTools::syncBoundaryFaceList
         (
             mesh,
-            minRegion,
+            l,
             minEqOpFace(),
-            false               // applySeparation
+            Foam::dummyTransform()  // dummy transformation
         );
     }
 

src/dynamicMesh/polyTopoChange/polyTopoChange/removeCells.C

@@ -130,8 +130,7 @@ Foam::labelList Foam::removeCells::getExposedFaces
         (
             mesh_,
             nCellsUsingFace,
-            plusEqOp<label>(),
-            false
+            plusEqOp<label>()
         );
     }
 

src/dynamicMesh/polyTopoChange/polyTopoChange/removeFaces.C

@@ -1084,8 +1084,7 @@ void Foam::removeFaces::setRefinement
             mesh_,
             nFacesPerEdge,
             maxEqOp<label>(),
-            labelMin,               // guaranteed to be overridden by maxEqOp
-            false                   // no separation
+            labelMin                // guaranteed to be overridden by maxEqOp
         );
 
         // Convert to labelHashSet
@@ -1187,8 +1186,7 @@ void Foam::removeFaces::setRefinement
         syncTools::swapFaceList
         (
             mesh_,
-            nbrFaceRegion,
-            false                   // no separation
+            nbrFaceRegion
         );
 
         labelList toNbrRegion(nRegions, -1);
@@ -1305,8 +1303,7 @@ void Foam::removeFaces::setRefinement
             mesh_,
             nEdgesPerPoint,
             maxEqOp<label>(),
-            labelMin,
-            false                   // no separation
+            labelMin 
         );
 
         forAll(nEdgesPerPoint, pointI)

src/dynamicMesh/polyTopoChange/polyTopoChange/removePoints.C

@@ -33,6 +33,7 @@ License
 #include "polyModifyFace.H"
 #include "syncTools.H"
 #include "faceSet.H"
+#include "dummyTransform.H"
 
 // * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
 
@@ -41,6 +42,55 @@ namespace Foam
 
 defineTypeNameAndDebug(removePoints, 0);
 
+//- Combine-reduce operator to combine data on faces. Takes care
+//  of reverse orientation on coupled face.
+template <class T, template<class> class CombineOp>
+class faceEqOp
+{
+
+public:
+
+    void operator()(List<T>& x, const List<T>& y) const
+    {
+        if (y.size() > 0)
+        {
+            if (x.size() == 0)
+            {
+                x = y;
+            }
+            else
+            {
+                label j = 0;
+                forAll(x, i)
+                {
+                    CombineOp<T>()(x[i], y[j]);
+                    j = y.rcIndex(j);
+                }
+            }
+        }
+    }
+};
+
+
+//// Dummy transform for List. Used in synchronisation.
+//template <class T>
+//class dummyTransformList
+//{
+//public:
+//    void operator()(const coupledPolyPatch&, Field<List<T> >&) const
+//    {}
+//};
+//// Dummy template specialisation. Used in synchronisation.
+//template<>
+//class pTraits<boolList>
+//{
+//public:
+//
+//    //- Component type
+//    typedef label cmptType;
+//};
+
+
 }
 
 // * * * * * * * * * * * * * Private Member Functions  * * * * * * * * * * * //
@@ -247,8 +297,7 @@ Foam::label Foam::removePoints::countPointUsage
         mesh_,
         pointCanBeDeleted,
         andEqOp<bool>(),
-        true,               // null value
-        false               // no separation
+        true                // null value
     );
 
     return returnReduce(nDeleted, sumOp<label>());
@@ -662,7 +711,7 @@ void Foam::removePoints::getUnrefimentSet
             mesh_,
             faceVertexRestore,
             faceEqOp<bool, orEqOp>(),   // special operator to handle faces
-            false                       // no separation
+            Foam::dummyTransform()      // no transformation
         );
 
         // So now if any of the points-to-restore is used by any coupled face

src/dynamicMesh/polyTopoChange/polyTopoChange/removePoints.H

@@ -59,38 +59,6 @@ class face;
 class removePoints
 {
 
-    // Private classes
-
-        //- Combine-reduce operator to combine data on faces. Takes care
-        //  of reverse orientation on coupled face.
-        template <class T, template<class> class CombineOp>
-        class faceEqOp
-        {
-
-        public:
-
-            void operator()(List<T>& x, const List<T>& y) const
-            {
-                if (y.size() > 0)
-                {
-                    if (x.empty())
-                    {
-                        x = y;
-                    }
-                    else
-                    {
-                        label j = 0;
-                        forAll(x, i)
-                        {
-                            CombineOp<T>()(x[i], y[j]);
-                            j = y.rcIndex(j);
-                        }
-                    }
-                }
-            }
-        };
-
-
     // Private data
 
         //- Reference to mesh

src/finiteVolume/Make/files

@@ -21,6 +21,7 @@ $(constraintFvPatches)/symmetry/symmetryFvPatch.C
 $(constraintFvPatches)/wedge/wedgeFvPatch.C
 $(constraintFvPatches)/cyclic/cyclicFvPatch.C
 $(constraintFvPatches)/processor/processorFvPatch.C
+$(constraintFvPatches)/processorCyclic/processorCyclicFvPatch.C
 
 derivedFvPatches = $(fvPatches)/derived
 $(derivedFvPatches)/wall/wallFvPatch.C
@@ -99,6 +100,8 @@ $(constraintFvPatchFields)/empty/emptyFvPatchFields.C
 $(constraintFvPatchFields)/jumpCyclic/jumpCyclicFvPatchFields.C
 $(constraintFvPatchFields)/processor/processorFvPatchFields.C
 $(constraintFvPatchFields)/processor/processorFvPatchScalarField.C
+$(constraintFvPatchFields)/processorCyclic/processorCyclicFvPatchFields.C
+$(constraintFvPatchFields)/processorCyclic/processorCyclicFvPatchScalarField.C
 $(constraintFvPatchFields)/symmetry/symmetryFvPatchFields.C
 $(constraintFvPatchFields)/wedge/wedgeFvPatchFields.C
 $(constraintFvPatchFields)/wedge/wedgeFvPatchScalarField.C
@@ -106,6 +109,7 @@ $(constraintFvPatchFields)/wedge/wedgeFvPatchScalarField.C
 derivedFvPatchFields = $(fvPatchFields)/derived
 $(derivedFvPatchFields)/activeBaffleVelocity/activeBaffleVelocityFvPatchVectorField.C
 $(derivedFvPatchFields)/advective/advectiveFvPatchFields.C
+
 $(derivedFvPatchFields)/directMappedFixedValue/directMappedFixedValueFvPatchFields.C
 $(derivedFvPatchFields)/directMappedVelocityFluxFixedValue/directMappedVelocityFluxFixedValueFvPatchField.C
 $(derivedFvPatchFields)/fan/fanFvPatchFields.C
@@ -165,6 +169,7 @@ constraintFvsPatchFields = $(fvsPatchFields)/constraint
 $(constraintFvsPatchFields)/cyclic/cyclicFvsPatchFields.C
 $(constraintFvsPatchFields)/empty/emptyFvsPatchFields.C
 $(constraintFvsPatchFields)/processor/processorFvsPatchFields.C
+$(constraintFvsPatchFields)/processorCyclic/processorCyclicFvsPatchFields.C
 $(constraintFvsPatchFields)/symmetry/symmetryFvsPatchFields.C
 $(constraintFvsPatchFields)/wedge/wedgeFvsPatchFields.C