Merge branch 'collapseEdgesParallel'

applications/utilities/mesh/advanced/collapseEdges/Make/files

@@ -1,3 +1,4 @@
 collapseEdges.C
+pointEdgeCollapse/pointEdgeCollapse.C
 
 EXE = $(FOAM_APPBIN)/collapseEdges

applications/utilities/mesh/advanced/collapseEdges/Make/options

@@ -1,6 +1,10 @@
 EXE_INC = \
-    -I$(LIB_SRC)/dynamicMesh/lnInclude
+    -I$(LIB_SRC)/dynamicMesh/lnInclude \
+    -I$(LIB_SRC)/meshTools/lnInclude \
+    -I$(LIB_SRC)/finiteVolume/lnInclude \
+    -IpointEdgeCollapse
 
 EXE_LIBS = \
     -ldynamicMesh \
-    -lmeshTools
+    -lmeshTools \
+    -lfiniteVolume

applications/utilities/mesh/advanced/collapseEdges/pointEdgeCollapse/pointEdgeCollapse.C

@@ -0,0 +1,51 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2012 OpenFOAM Foundation
+     \\/     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 3 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, see <http://www.gnu.org/licenses/>.
+
+\*---------------------------------------------------------------------------*/
+
+#include "pointEdgeCollapse.H"
+
+// * * * * * * * * * * * * * * * Friend Operators  * * * * * * * * * * * * * //
+
+Foam::Ostream& Foam::operator<<
+(
+    Foam::Ostream& os,
+    const Foam::pointEdgeCollapse& wDist
+)
+{
+    return os
+        << wDist.collapsePoint_ << wDist.collapseIndex_;
+}
+
+Foam::Istream& Foam::operator>>
+(
+    Foam::Istream& is,
+    Foam::pointEdgeCollapse& wDist
+)
+{
+    return is
+        >> wDist.collapsePoint_ >> wDist.collapseIndex_;
+}
+
+
+// ************************************************************************* //

applications/utilities/mesh/advanced/collapseEdges/pointEdgeCollapse/pointEdgeCollapse.H

@@ -0,0 +1,227 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2012 OpenFOAM Foundation
+     \\/     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 3 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, see <http://www.gnu.org/licenses/>.
+
+Class
+    Foam::pointEdgeCollapse
+
+Description
+    Determines length of string of edges walked to point.
+
+SourceFiles
+    pointEdgeCollapseI.H
+    pointEdgeCollapse.C
+
+\*---------------------------------------------------------------------------*/
+
+#ifndef pointEdgeCollapse_H
+#define pointEdgeCollapse_H
+
+#include "point.H"
+#include "tensor.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+
+// Forward declaration of classes
+class polyPatch;
+class polyMesh;
+
+/*---------------------------------------------------------------------------*\
+                           Class pointEdgeCollapse Declaration
+\*---------------------------------------------------------------------------*/
+
+class pointEdgeCollapse
+{
+    // Private data
+
+        //- Collapse location
+        point collapsePoint_;
+
+        //- Collapse string index
+        label collapseIndex_;
+
+
+    // Private Member Functions
+
+        //- Evaluate distance to point.
+        template<class TrackingData>
+        inline bool update
+        (
+            const pointEdgeCollapse& w2,
+            const scalar tol,
+            TrackingData& td
+        );
+
+
+        //- Check for same coordinate
+        inline bool samePoint(const point& pt) const;
+
+public:
+
+    // Constructors
+
+        //- Construct null
+        inline pointEdgeCollapse();
+
+        //- Construct from components
+        inline pointEdgeCollapse
+        (
+            const point& collapsePoint,
+            const label collapseIndex
+        );
+
+
+    // Member Functions
+
+        // Access
+
+            inline const point& collapsePoint() const;
+
+            inline label collapseIndex() const;
+
+
+        // Needed by meshWave
+
+            //- Check whether origin has been changed at all or
+            //  still contains original (invalid) value.
+            template<class TrackingData>
+            inline bool valid(TrackingData& td) const;
+
+            //- Convert origin to relative vector to leaving point
+            //  (= point coordinate)
+            template<class TrackingData>
+            inline void leaveDomain
+            (
+                const polyPatch& patch,
+                const label patchPointI,
+                const point& pos,
+                TrackingData& td
+            );
+
+            //- Convert relative origin to absolute by adding entering point
+            template<class TrackingData>
+            inline void enterDomain
+            (
+                const polyPatch& patch,
+                const label patchPointI,
+                const point& pos,
+                TrackingData& td
+            );
+
+            //- Apply rotation matrix to origin
+            template<class TrackingData>
+            inline void transform
+            (
+                const tensor& rotTensor,
+                TrackingData& td
+            );
+
+            //- Influence of edge on point
+            template<class TrackingData>
+            inline bool updatePoint
+            (
+                const polyMesh& mesh,
+                const label pointI,
+                const label edgeI,
+                const pointEdgeCollapse& edgeInfo,
+                const scalar tol,
+                TrackingData& td
+            );
+
+            //- Influence of different value on same point.
+            //  Merge new and old info.
+            template<class TrackingData>
+            inline bool updatePoint
+            (
+                const polyMesh& mesh,
+                const label pointI,
+                const pointEdgeCollapse& newPointInfo,
+                const scalar tol,
+                TrackingData& td
+            );
+
+            //- Influence of different value on same point.
+            //  No information about current position whatsoever.
+            template<class TrackingData>
+            inline bool updatePoint
+            (
+                const pointEdgeCollapse& newPointInfo,
+                const scalar tol,
+                TrackingData& td
+            );
+
+            //- Influence of point on edge.
+            template<class TrackingData>
+            inline bool updateEdge
+            (
+                const polyMesh& mesh,
+                const label edgeI,
+                const label pointI,
+                const pointEdgeCollapse& pointInfo,
+                const scalar tol,
+                TrackingData& td
+            );
+
+            //- Same (like operator==)
+            template<class TrackingData>
+            inline bool equal(const pointEdgeCollapse&, TrackingData&)
+            const;
+
+
+    // Member Operators
+
+        //Note: Used to determine whether to call update.
+        inline bool operator==(const pointEdgeCollapse&) const;
+        inline bool operator!=(const pointEdgeCollapse&) const;
+
+
+    // IOstream Operators
+
+        friend Ostream& operator<<(Ostream&, const pointEdgeCollapse&);
+        friend Istream& operator>>(Istream&, pointEdgeCollapse&);
+};
+
+
+//- Data associated with pointEdgeCollapse type are contiguous
+template<>
+inline bool contiguous<pointEdgeCollapse>()
+{
+    return true;
+}
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+} // End namespace Foam
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#include "pointEdgeCollapseI.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#endif
+
+// ************************************************************************* //

applications/utilities/mesh/advanced/collapseEdges/pointEdgeCollapse/pointEdgeCollapseI.H

@@ -0,0 +1,313 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2012 OpenFOAM Foundation
+     \\/     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 3 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, see <http://www.gnu.org/licenses/>.
+
+\*---------------------------------------------------------------------------*/
+
+#include "polyMesh.H"
+#include "transform.H"
+
+// * * * * * * * * * * * * * Private Member Functions  * * * * * * * * * * * //
+
+// Update this with w2.
+template<class TrackingData>
+inline bool Foam::pointEdgeCollapse::update
+(
+    const pointEdgeCollapse& w2,
+    const scalar tol,
+    TrackingData& td
+)
+{
+    if (!w2.valid(td))
+    {
+        FatalErrorIn("pointEdgeCollapse::update(..)")
+            << "problem." << abort(FatalError);
+    }
+
+    if (w2.collapseIndex_ == -1)
+    {
+        // Not marked for collapse; only happens on edges.
+        return false;
+    }
+
+    if (!valid(td))
+    {
+        operator=(w2);
+        return true;
+    }
+    else
+    {
+        // Same coordinate. Same string?
+        if (w2.collapseIndex_ < collapseIndex_)
+        {
+            // Take over string index from w2 (and also coordinate but this
+            // was same)
+            operator=(w2);
+            return true;
+        }
+        else if (w2.collapseIndex_ == collapseIndex_)
+        {
+            bool identicalPoint = samePoint(w2.collapsePoint_);
+            bool nearer = magSqr(w2.collapsePoint_) < magSqr(collapsePoint_);
+            if (nearer)
+            {
+                operator=(w2);
+            }
+            if (identicalPoint)
+            {
+                return false;
+            }
+            else
+            {
+                return nearer;
+            }
+        }
+        else
+        {
+            return false;
+        }
+
+//        if (samePoint(w2.collapsePoint_))
+//        {
+//            // Same coordinate. Same string?
+//            if (w2.collapseIndex_ < collapseIndex_)
+//            {
+//                // Take over string index from w2 (and also coordinate but this
+//                // was same)
+//                operator=(w2);
+//                return true;
+//            }
+//            else
+//            {
+//                return false;
+//            }
+//        }
+//        else
+//        {
+//            // Find nearest coordinate
+//            if (magSqr(w2.collapsePoint_) < magSqr(collapsePoint_))
+//            {
+//                operator=(w2);
+//                return true;
+//            }
+//            else
+//            {
+//                return false;
+//            }
+//        }
+    }
+}
+
+
+// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
+
+// Null constructor
+inline Foam::pointEdgeCollapse::pointEdgeCollapse()
+:
+    collapsePoint_(GREAT, GREAT, GREAT),
+    collapseIndex_(-2)
+{}
+
+
+// Construct from origin, distance
+inline Foam::pointEdgeCollapse::pointEdgeCollapse
+(
+    const point& collapsePoint,
+    const label collapseIndex
+)
+:
+    collapsePoint_(collapsePoint),
+    collapseIndex_(collapseIndex)
+{}
+
+
+// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
+
+inline const Foam::point& Foam::pointEdgeCollapse::collapsePoint() const
+{
+    return collapsePoint_;
+}
+
+
+inline Foam::label Foam::pointEdgeCollapse::collapseIndex() const
+{
+    return collapseIndex_;
+}
+
+
+inline bool Foam::pointEdgeCollapse::samePoint(const point& pt) const
+{
+    bool isLegal1 = (cmptMin(collapsePoint_) < 0.5*GREAT);
+    bool isLegal2 = (cmptMin(pt) < 0.5*GREAT);
+
+    if (isLegal1 && isLegal2)
+    {
+        return mag(collapsePoint_ - pt) < 1e-9;//SMALL;
+    }
+    else
+    {
+        return isLegal1 == isLegal2;
+    }
+}
+
+
+template<class TrackingData>
+inline bool Foam::pointEdgeCollapse::valid(TrackingData& td) const
+{
+    return collapseIndex_ != -2;
+}
+
+
+template<class TrackingData>
+inline void Foam::pointEdgeCollapse::leaveDomain
+(
+    const polyPatch& patch,
+    const label patchPointI,
+    const point& coord,
+    TrackingData& td
+)
+{
+    collapsePoint_ -= coord;
+}
+
+
+template<class TrackingData>
+inline void Foam::pointEdgeCollapse::transform
+(
+    const tensor& rotTensor,
+    TrackingData& td
+)
+{
+    collapsePoint_ = Foam::transform(rotTensor, collapsePoint_);
+}
+
+
+// Update absolute geometric quantities. Note that distance (dist_)
+// is not affected by leaving/entering domain.
+template<class TrackingData>
+inline void Foam::pointEdgeCollapse::enterDomain
+(
+    const polyPatch& patch,
+    const label patchPointI,
+    const point& coord,
+    TrackingData& td
+)
+{
+    // back to absolute form
+    collapsePoint_ += coord;
+}
+
+
+// Update this with information from connected edge
+template<class TrackingData>
+inline bool Foam::pointEdgeCollapse::updatePoint
+(
+    const polyMesh& mesh,
+    const label pointI,
+    const label edgeI,
+    const pointEdgeCollapse& edgeInfo,
+    const scalar tol,
+    TrackingData& td
+)
+{
+    return update(edgeInfo, tol, td);
+}
+
+
+// Update this with new information on same point
+template<class TrackingData>
+inline bool Foam::pointEdgeCollapse::updatePoint
+(
+    const polyMesh& mesh,
+    const label pointI,
+    const pointEdgeCollapse& newPointInfo,
+    const scalar tol,
+    TrackingData& td
+)
+{
+    return update(newPointInfo, tol, td);
+}
+
+
+// Update this with new information on same point. No extra information.
+template<class TrackingData>
+inline bool Foam::pointEdgeCollapse::updatePoint
+(
+    const pointEdgeCollapse& newPointInfo,
+    const scalar tol,
+    TrackingData& td
+)
+{
+    return update(newPointInfo, tol, td);
+}
+
+
+// Update this with information from connected point
+template<class TrackingData>
+inline bool Foam::pointEdgeCollapse::updateEdge
+(
+    const polyMesh& mesh,
+    const label edgeI,
+    const label pointI,
+    const pointEdgeCollapse& pointInfo,
+    const scalar tol,
+    TrackingData& td
+)
+{
+    return update(pointInfo, tol, td);
+}
+
+
+template <class TrackingData>
+inline bool Foam::pointEdgeCollapse::equal
+(
+    const pointEdgeCollapse& rhs,
+    TrackingData& td
+) const
+{
+    return operator==(rhs);
+}
+
+
+// * * * * * * * * * * * * * * * Member Operators  * * * * * * * * * * * * * //
+
+inline bool Foam::pointEdgeCollapse::operator==
+(
+    const Foam::pointEdgeCollapse& rhs
+) const
+{
+    return
+        collapseIndex_ == rhs.collapseIndex_
+     && samePoint(rhs.collapsePoint_);
+}
+
+
+inline bool Foam::pointEdgeCollapse::operator!=
+(
+    const Foam::pointEdgeCollapse& rhs
+) const
+{
+    return !(*this == rhs);
+}
+
+
+// ************************************************************************* //

src/dynamicMesh/polyTopoChange/polyTopoChange/edgeCollapser.C

@@ -27,6 +27,10 @@ License
 #include "polyMesh.H"
 #include "polyTopoChange.H"
 #include "ListOps.H"
+#include "globalMeshData.H"
+#include "OFstream.H"
+#include "meshTools.H"
+#include "syncTools.H"
 
 // * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
 
@@ -121,6 +125,7 @@ void Foam::edgeCollapser::filterFace(const label faceI, face& f) const
         }
     }
 
+
     // Check for pinched face. Tries to correct
     // - consecutive duplicate vertex. Removes duplicate vertex.
     // - duplicate vertex with one other vertex in between (spike).
@@ -190,15 +195,15 @@ void Foam::edgeCollapser::printRegions() const
 
         if (master != -1)
         {
-            Info<< "Region:" << regionI << nl
+            Pout<< "Region:" << regionI << nl
                 << "    master:" << master
-                << ' ' << mesh_.points()[master] << nl;
+                << ' ' << pointRegionMasterLocation_[regionI] << nl;
 
             forAll(pointRegion_, pointI)
             {
                 if (pointRegion_[pointI] == regionI && pointI != master)
                 {
-                    Info<< "    slave:" << pointI
+                    Pout<< "    slave:" << pointI
                         << ' ' <<  mesh_.points()[pointI] << nl;
                 }
             }
@@ -272,6 +277,7 @@ Foam::edgeCollapser::edgeCollapser(const polyMesh& mesh)
 :
     mesh_(mesh),
     pointRegion_(mesh.nPoints(), -1),
+    pointRegionMasterLocation_(mesh.nPoints() / 100),
     pointRegionMaster_(mesh.nPoints() / 100),
     freeRegions_()
 {}
@@ -289,6 +295,8 @@ bool Foam::edgeCollapser::unaffectedEdge(const label edgeI) const
 
 bool Foam::edgeCollapser::collapseEdge(const label edgeI, const label master)
 {
+    const pointField& points = mesh_.points();
+
     const edge& e = mesh_.edges()[edgeI];
 
     label pointRegion0 = pointRegion_[e[0]];
@@ -310,7 +318,7 @@ bool Foam::edgeCollapser::collapseEdge(const label edgeI, const label master)
                 {
                     FatalErrorIn
                     ("edgeCollapser::collapseEdge(const label, const label)")
-                        << "Problem : freeed region :" << freeRegion
+                        << "Problem : freed region :" << freeRegion
                         << " has already master "
                         << pointRegionMaster_[freeRegion]
                         << abort(FatalError);
@@ -327,13 +335,22 @@ bool Foam::edgeCollapser::collapseEdge(const label edgeI, const label master)
             pointRegion_[e[1]] = freeRegion;
 
             pointRegionMaster_(freeRegion) = master;
+            pointRegionMasterLocation_(freeRegion) = points[master];
         }
         else
         {
             // e[1] is part of collapse network, e[0] not. Add e0 to e1 region.
             pointRegion_[e[0]] = pointRegion1;
 
+            if
+            (
+                pointRegionMaster_[pointRegion1] == e[0]
+             || pointRegionMaster_[pointRegion1] == e[1]
+            )
+            {
                 pointRegionMaster_[pointRegion1] = master;
+                pointRegionMasterLocation_[pointRegion1] = points[master];
+            }
         }
     }
     else
@@ -343,7 +360,15 @@ bool Foam::edgeCollapser::collapseEdge(const label edgeI, const label master)
             // e[0] is part of collapse network. Add e1 to e0 region
             pointRegion_[e[1]] = pointRegion0;
 
+            if
+            (
+                pointRegionMaster_[pointRegion0] == e[0]
+             || pointRegionMaster_[pointRegion0] == e[1]
+            )
+            {
                 pointRegionMaster_[pointRegion0] = master;
+                pointRegionMasterLocation_[pointRegion0] = points[master];
+            }
         }
         else if (pointRegion0 != pointRegion1)
         {
@@ -356,6 +381,9 @@ bool Foam::edgeCollapser::collapseEdge(const label edgeI, const label master)
             // Use minRegion as region for combined net, free maxRegion.
             pointRegionMaster_[minRegion] = master;
             pointRegionMaster_[maxRegion] = -1;
+            pointRegionMasterLocation_[minRegion] = points[master];
+            pointRegionMasterLocation_[maxRegion] = point(0, 0, 0);
+
             freeRegions_.insert(maxRegion);
 
             if (minRegion != pointRegion0)
@@ -380,12 +408,61 @@ bool Foam::edgeCollapser::setRefinement(polyTopoChange& meshMod)
     const labelList& faceNeighbour = mesh_.faceNeighbour();
     const labelListList& pointFaces = mesh_.pointFaces();
     const labelListList& cellEdges = mesh_.cellEdges();
+    const pointZoneMesh& pointZones = mesh_.pointZones();
+
 
-    // Print regions:
-    //printRegions()
 
     bool meshChanged = false;
 
+    // Synchronise pointRegionMasterLocation_
+    const globalMeshData& globalData = mesh_.globalData();
+    const mapDistribute& map = globalData.globalPointSlavesMap();
+    const indirectPrimitivePatch& coupledPatch = globalData.coupledPatch();
+    const labelList& meshPoints = coupledPatch.meshPoints();
+    const Map<label>& meshPointMap = coupledPatch.meshPointMap();
+
+
+    List<point> newPoints = coupledPatch.localPoints();
+
+    for (label pI = 0; pI < coupledPatch.nPoints(); ++pI)
+    {
+        const label pointRegionMaster = pointRegion_[meshPoints[pI]];
+
+        if (pointRegionMaster != -1)
+        {
+            newPoints[pI]
+                = pointRegionMasterLocation_[pointRegionMaster];
+        }
+    }
+
+    globalData.syncData
+    (
+        newPoints,
+        globalData.globalPointSlaves(),
+        globalData.globalPointTransformedSlaves(),
+        map,
+        minMagSqrEqOp<point>()
+    );
+
+        OFstream str1("newPoints_" + name(Pstream::myProcNo()) + ".obj");
+        forAll(pointRegion_, pI)
+        {
+            if (meshPointMap.found(pI))
+            {
+                meshTools::writeOBJ(str1, newPoints[meshPointMap[pI]]);
+            }
+        }
+
+    for (label pI = 0; pI < coupledPatch.nPoints(); ++pI)
+    {
+        const label pointRegionMaster = pointRegion_[meshPoints[pI]];
+
+        if (pointRegionMaster != -1)
+        {
+            pointRegionMasterLocation_[pointRegionMaster]
+                = newPoints[pI];
+        }
+    }
 
     // Current faces (is also collapseStatus: f.size() < 3)
     faceList newFaces(mesh_.faces());
@@ -393,7 +470,6 @@ bool Foam::edgeCollapser::setRefinement(polyTopoChange& meshMod)
     // Current cellCollapse status
     boolList cellRemoved(mesh_.nCells(), false);
 
-
     do
     {
         // Update face collapse from edge collapses
@@ -521,12 +597,49 @@ bool Foam::edgeCollapser::setRefinement(polyTopoChange& meshMod)
         }
     }
 
+    // Modify the point location of the remaining points
+    forAll(pointRegion_, pointI)
+    {
+        const label pointRegion = pointRegion_[pointI];
+
+        if
+        (
+            !pointRemoved(pointI)
+         && meshPointMap.found(pointI)
+        )
+        {
+            meshMod.modifyPoint
+            (
+                pointI,
+                newPoints[meshPointMap[pointI]],
+                pointZones.whichZone(pointI),
+                false
+            );
+        }
+        else if
+        (
+            pointRegion != -1
+         && !pointRemoved(pointI)
+         && !meshPointMap.found(pointI)
+        )
+        {
+            const point& collapsePoint
+                = pointRegionMasterLocation_[pointRegion];
+
+            meshMod.modifyPoint
+            (
+                pointI,
+                collapsePoint,
+                pointZones.whichZone(pointI),
+                false
+            );
+        }
+    }
 
 
     const polyBoundaryMesh& boundaryMesh = mesh_.boundaryMesh();
     const faceZoneMesh& faceZones = mesh_.faceZones();
 
-
     // Renumber faces that use points
     forAll(pointRegion_, pointI)
     {
@@ -585,6 +698,9 @@ bool Foam::edgeCollapser::setRefinement(polyTopoChange& meshMod)
         }
     }
 
+    // Print regions:
+//    printRegions();
+
     return meshChanged;
 }
 
@@ -593,8 +709,10 @@ void Foam::edgeCollapser::updateMesh(const mapPolyMesh& map)
 {
     pointRegion_.setSize(mesh_.nPoints());
     pointRegion_ = -1;
+
     // Reset count, do not remove underlying storage
     pointRegionMaster_.clear();
+    pointRegionMasterLocation_.clear();
     freeRegions_.clear();
 }
 

src/dynamicMesh/polyTopoChange/polyTopoChange/edgeCollapser.H

@@ -39,6 +39,7 @@ SourceFiles
 
 #include "labelList.H"
 #include "DynamicList.H"
+#include "point.H"
 #include "typeInfo.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
@@ -66,6 +67,10 @@ class edgeCollapser
         //- For every point -1 or region number
         labelList pointRegion_;
 
+        //- Actual location of the point to collapse to for every region master
+        //  point. This will be forced to be consistent across processors
+        DynamicList<point> pointRegionMasterLocation_;
+
         //- -1 or master vertex for region number
         DynamicList<label> pointRegionMaster_;