Patches contributed by Mattijs Janssens:

splitMeshRegions: handle flipping of faces for surface fields

subsetMesh: subset dimensionedFields

decomposePar: use run-time selection of decomposition constraints. Used to
    keep cells on particular processors. See the decomposeParDict in

$FOAM_UTILITIES/parallel/decomposePar:
  - preserveBaffles: keep baffle faces on same processor
  - preserveFaceZones: keep faceZones owner and neighbour on same processor
  - preservePatches: keep owner and neighbour on same processor. Note: not
    suitable for cyclicAMI since these are not coupled on the patch level
  - singleProcessorFaceSets: keep complete faceSet on a single processor
  - refinementHistory: keep cells originating from a single cell on the
    same processor.

decomposePar: clean up decomposition of refinement data from snappyHexMesh

reconstructPar: reconstruct refinement data (refineHexMesh, snappyHexMesh)

reconstructParMesh: reconstruct refinement data (refineHexMesh, snappyHexMesh)

redistributePar:
  - corrected mapping surfaceFields
  - adding processor patches in order consistent with decomposePar

argList: check that slaves are running same version as master

fvMeshSubset: move to dynamicMesh library

fvMeshDistribute:
  - support for mapping dimensionedFields
  - corrected mapping of surfaceFields

parallel routines: allow parallel running on single processor

Field: support for
  - distributed mapping
  - mapping with flipping

mapDistribute: support for flipping

AMIInterpolation: avoid constructing localPoints

src/meshTools/AMIInterpolation/AMIInterpolation/AMIInterpolation.C

@@ -27,6 +27,7 @@ License
 #include "AMIMethod.H"
 #include "meshTools.H"
 #include "mapDistribute.H"
+#include "flipOp.H"
 
 // * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
 
@@ -933,7 +934,7 @@ void Foam::AMIInterpolation<SourcePatch, TargetPatch>::update
                 tgtMagSf_,
                 triMode_,
                 reverseTarget_,
-                requireMatch_
+                requireMatch_ && (lowWeightCorrection_ < 0)
             )
         );
 
@@ -978,27 +979,33 @@ void Foam::AMIInterpolation<SourcePatch, TargetPatch>::update
         // send data back to originating procs. Note that contributions
         // from different processors get added (ListAppendEqOp)
 
-        mapDistribute::distribute
+        mapDistributeBase::distribute
         (
             Pstream::nonBlocking,
             List<labelPair>(),
             tgtPatch.size(),
             map.constructMap(),
+            false,                      // has flip
             map.subMap(),
+            false,                      // has flip
             tgtAddress_,
             ListAppendEqOp<label>(),
+            flipOp(),                   // flip operation
             labelList()
         );
 
-        mapDistribute::distribute
+        mapDistributeBase::distribute
         (
             Pstream::nonBlocking,
             List<labelPair>(),
             tgtPatch.size(),
             map.constructMap(),
+            false,
             map.subMap(),
+            false,
             tgtWeights_,
             ListAppendEqOp<scalar>(),
+            flipOp(),
             scalarList()
         );
 
@@ -1050,7 +1057,7 @@ void Foam::AMIInterpolation<SourcePatch, TargetPatch>::update
                 tgtMagSf_,
                 triMode_,
                 reverseTarget_,
-                requireMatch_
+                requireMatch_ && (lowWeightCorrection_ < 0)
             )
         );
 

src/meshTools/AMIInterpolation/AMIInterpolation/AMIInterpolationParallelOps.C

@@ -97,7 +97,7 @@ Foam::AMIInterpolation<SourcePatch, TargetPatch>::calcOverlappingProcs
 
     forAll(procBb, proci)
     {
-        const List<treeBoundBox>& bbs = procBb[proci];
+        const treeBoundBoxList& bbs = procBb[proci];
 
         forAll(bbs, bbI)
         {

src/meshTools/AMIInterpolation/AMIInterpolation/AMIMethod/AMIMethod/AMIMethod.C

@@ -200,7 +200,7 @@ void Foam::AMIMethod<SourcePatch, TargetPatch>::resetTree()
     // Clear the old octree
     treePtr_.clear();
 
-    treeBoundBox bb(tgtPatch_.points());
+    treeBoundBox bb(tgtPatch_.points(), tgtPatch_.meshPoints());
     bb.inflate(0.01);
 
     if (!treePtr_.valid())

src/meshTools/AMIInterpolation/AMIInterpolation/AMIMethod/directAMI/directAMI.C

@@ -310,16 +310,14 @@ void Foam::directAMI<SourcePatch, TargetPatch>::calculate
     forAll(srcAddr, i)
     {
         scalar magSf = this->srcMagSf_[i];
-//        srcWeights[i] = scalarList(srcAddr[i].size(), magSf);
-        srcWeights[i] = scalarList(1, magSf);
         srcAddress[i].transfer(srcAddr[i]);
+        srcWeights[i] = scalarList(1, magSf);
     }
     forAll(tgtAddr, i)
     {
         scalar magSf = this->tgtMagSf_[i];
-//        tgtWeights[i] = scalarList(tgtAddr[i].size(), magSf);
-        tgtWeights[i] = scalarList(1, magSf);
         tgtAddress[i].transfer(tgtAddr[i]);
+        tgtWeights[i] = scalarList(1, magSf);
     }
 }
 

src/meshTools/mappedPatches/mappedPolyPatch/mappedPatchBaseTemplates.C

@@ -61,15 +61,18 @@ void Foam::mappedPatchBase::distribute
         }
         default:
         {
-            map().distribute
+            mapDistributeBase::distribute
             (
                 Pstream::defaultCommsType,
                 map().schedule(),
                 map().constructSize(),
                 map().subMap(),
+                false,
                 map().constructMap(),
+                false,
                 lst,
                 cop,
+                flipOp(),
                 Type(Zero)
             );
         }
@@ -117,15 +120,18 @@ void Foam::mappedPatchBase::reverseDistribute
         default:
         {
             label cSize = sampleSize();
-            map().distribute
+            mapDistributeBase::distribute
             (
                 Pstream::defaultCommsType,
                 map().schedule(),
                 cSize,
                 map().constructMap(),
+                false,
                 map().subMap(),
+                false,
                 lst,
                 cop,
+                flipOp(),
                 Type(Zero)
             );
             break;