Fixed bug in shared points for reconstruction

This commit is contained in:
Hrvoje Jasak 2018-05-21 13:00:34 +01:00
parent d164eca378
commit 5f840ba74f
3 changed files with 238 additions and 112 deletions

View file

@ -290,7 +290,23 @@ Foam::processorMeshesReconstructor::neighbourProcPatch
// Check neighbour processor index
if (masterProcPatch.neighbProcNo() == procPatch.myProcNo())
{
// Found matching patch
// Found matching patch. Check sizes
if (masterProcPatch.size() != procPatch.size())
{
FatalErrorIn
(
"const processorPolyPatch&\n"
"processorMeshesReconstructor::neighbourProcPatch\n"
"(\n"
" const processorPolyPatch& procPatch\n"
") const"
) << "Processor patch pair ("
<< procPatch.myProcNo() << " "
<< procPatch.neighbProcNo() << ") sizes do not match: "
<< masterProcPatch.size() << " and " << procPatch.size()
<< abort(FatalError);
}
return masterProcPatch;
}
}
@ -528,7 +544,6 @@ Foam::processorMeshesReconstructor::reconstructMesh(const Time& db)
// Note: for easier debugging, set mapping, owner and neighbour to -1
pointField reconPoints(nReconPoints);
labelList globalPointMapping(nReconPoints, -1);
faceList reconFaces(nReconFaces);
labelList cellOffset(meshes_.size(), 0);
labelList reconOwner(nReconFaces, -1);
@ -642,6 +657,9 @@ Foam::processorMeshesReconstructor::reconstructMesh(const Time& db)
// on the same processor
sharedPoints sharedData(meshes_);
// Record global point index for shared points
labelList globalPointMapping(sharedData.nGlobalPoints(), -1);
// Before assembling the meshes, create unique ordering for all passive
// processor patches that will be merged. HJ, 6/May/2018
@ -655,7 +673,7 @@ Foam::processorMeshesReconstructor::reconstructMesh(const Time& db)
// Memory management
{
// This list provides inser offset for the patch to unpack the list
// This list provides insert offset for the patch to unpack the list
labelListList passivePatchInsertOffset(meshes_.size());
// This list records all global indices from passive faces
@ -789,12 +807,13 @@ Foam::processorMeshesReconstructor::reconstructMesh(const Time& db)
}
// Collect globally shared point labels
const labelList& curSpAddr = sharedData.sharedPointAddr()[fvmId];
const labelList& curSpl = sharedData.sharedPointLabels()[fvmId];
forAll (curSpl, splI)
forAll (curSpAddr, splI)
{
// From processor 0, mark points without checking
globalPointMapping[curSpl[splI]] = ppAddr[curSpl[splI]];
globalPointMapping[curSpAddr[splI]] = ppAddr[curSpl[splI]];
}
// Dump all internal faces into the list
@ -962,7 +981,8 @@ Foam::processorMeshesReconstructor::reconstructMesh(const Time& db)
// Set cell offset for the next mesh
if (cellOffset.size() > firstValidMesh() + 1)
{
cellOffset[firstValidMesh() + 1] = meshes_[firstValidMesh()].nCells();
cellOffset[firstValidMesh() + 1] =
meshes_[firstValidMesh()].nCells();
}
}
@ -973,7 +993,9 @@ Foam::processorMeshesReconstructor::reconstructMesh(const Time& db)
{
if (meshes_.set(procI))
{
Pout<< "Dump mesh " << procI << " cell offset: " << cellOffset[procI] << endl;
Pout<< "Dump mesh " << procI
<< " cell offset: " << cellOffset[procI]
<< endl;
const polyMesh& curMesh = meshes_[procI];
const polyBoundaryMesh& procPatches = curMesh.boundaryMesh();
@ -992,10 +1014,29 @@ Foam::processorMeshesReconstructor::reconstructMesh(const Time& db)
ppAddr.setSize(curPoints.size());
ppAddr = -1;
// Collect globally shared point labels
const labelList& curSpAddr = sharedData.sharedPointAddr()[procI];
const labelList& curSpl = sharedData.sharedPointLabels()[procI];
// Go through globally shared points. If already marked, mark
// their point index. If not, leave for later
forAll (curSpAddr, splI)
{
// From other processors, check if point is already marked
// If yes, insert the point label into ppAddr
if (globalPointMapping[curSpAddr[splI]] > -1)
{
// Point is marked. Record it locally
ppAddr[curSpl[splI]] = globalPointMapping[curSpAddr[splI]];
}
}
// Find points already added via processor patches and mark them
// in ppAddr
// Collect point-processor addressing for points on processor patches
// Collect point-processor addressing for points on
// processor patches
// Go through all processor patches. For neighbour patches, access
// owner addressing and dump into ppAddr
@ -1054,9 +1095,37 @@ Foam::processorMeshesReconstructor::reconstructMesh(const Time& db)
forAll (curRF, pointI)
{
// Mapping is established
ppAddr[curRF[pointI]] =
masterPpAddr[curMF[pointI]];
if (ppAddr[curRF[pointI]] == -1)
{
// Mapping is established
ppAddr[curRF[pointI]] =
masterPpAddr[curMF[pointI]];
}
else
{
// Mapping already exists. Check it
if
(
ppAddr[curRF[pointI]]
!= masterPpAddr[curMF[pointI]]
)
{
WarningIn
(
"autoPtr<fvMesh> "
"processorMeshesReconstructor::"
"reconstructMesh(const Time& db)"
) << "Loss of proc sync: "
<< ppAddr[curRF[pointI]] << " and "
<< masterPpAddr[curMF[pointI]]
<< " for point "
<< curRF[pointI]
<< " at "
<< curMesh.points()[curRF[pointI]]
<< nl
<< abort(FatalError);
}
}
}
}
} // End of "is neighbour"
@ -1087,24 +1156,20 @@ Foam::processorMeshesReconstructor::reconstructMesh(const Time& db)
const labelList& curNeighbour = curMesh.faceNeighbour();
fpAddr.setSize(curFaces.size());
// Collect globally shared point labels
const labelList& curSpl = sharedData.sharedPointLabels()[procI];
forAll (curSpl, splI)
// Collect newly marked globally shared point labels
forAll (curSpAddr, splI)
{
// From other processors, check if point is already marked
// If not, mark it; otherwise compare (and correct?) with local
// mark
if (globalPointMapping[curSpl[splI]] < 0)
if (globalPointMapping[curSpAddr[splI]] < 0)
{
globalPointMapping[curSpl[splI]] = ppAddr[curSpl[splI]];
globalPointMapping[curSpAddr[splI]] = ppAddr[curSpl[splI]];
}
else
{
// Compare. Is this needed - should always be OK.
// If point is already set, compare sync
// to detect merge error. Debug
if
(
globalPointMapping[curSpl[splI]]
globalPointMapping[curSpAddr[splI]]
!= ppAddr[curSpl[splI]]
)
{
@ -1113,7 +1178,9 @@ Foam::processorMeshesReconstructor::reconstructMesh(const Time& db)
"autoPtr<fvMesh> "
"processorMeshesReconstructor::"
"reconstructMesh(const Time& db)"
) << "Loss of sync???"
) << "Loss of global sync: "
<< globalPointMapping[curSpAddr[splI]] << " and "
<< ppAddr[curSpl[splI]] << nl
<< abort(FatalError);
}
}
@ -1542,20 +1609,6 @@ Foam::processorMeshesReconstructor::reconstructMesh(const Time& db)
// TODO: point, face and cell zones
Info<< "Reconstructed addressing: " << nl;
forAll (meshes_, procI)
{
if (meshes_.set(procI))
{
Info<< "Proc " << procI
<< " point addr: " << pointProcAddressing_[procI].size()
<< " face addr: " << faceProcAddressing_[procI].size()
<< " cell addr: " << cellProcAddressing_[procI].size()
<< " boundary addr: " << boundaryProcAddressing_[procI].size()
<< endl;
}
}
return globalMeshPtr;
}

View file

@ -194,19 +194,18 @@ void Foam::sharedPoints::calcSharedPoints()
labelListList patchPairs = procPatchPairs();
// Communicate and count global points
labelList nGlobalPointsPerProc(meshes_.size(), 0);
// Identify, count and communicate points across processor boundaries
// Repeat until the number of points per processor stabilises,
// ie. no further points are found through communication
label oldNTotalPoints, newNTotalPoints;
label nSynced;
do
{
oldNTotalPoints = sum(nGlobalPointsPerProc);
// Reset the list
nGlobalPointsPerProc = 0;
nSynced = 0;
// Sync mark across processor boundaries
forAll (meshes_, meshI)
{
if (meshes_.set(meshI))
@ -223,13 +222,16 @@ void Foam::sharedPoints::calcSharedPoints()
if (isA<processorPolyPatch>(pp))
{
// Found processor patch
const labelList& patchMeshPoints = pp.meshPoints();
// My processor patch
const processorPolyPatch& myProcPatch =
refCast<const processorPolyPatch>(pp);
// Get local mesh points
const labelList& patchMeshPoints = pp.meshPoints();
// Get my local faces
const faceList& patchLocalFaces = pp.localFaces();
// Get neighbour processor ID
const int nbrProcID = myProcPatch.neighbProcNo();
@ -238,65 +240,115 @@ void Foam::sharedPoints::calcSharedPoints()
meshes_[nbrProcID].boundaryMesh()
[patchPairs[meshI][patchI]];
// Get neighbour mesh points
const labelList& nbrMeshPoints = nbrPatch.meshPoints();
// Get neighbour local faces
const faceList& nbrLocalFaces = nbrPatch.localFaces();
labelList& nbrMarkedPoints = markedPoints[nbrProcID];
forAll (patchMeshPoints, mpI)
// Note:
// Cannot loop over mesh points because they are sorted
// Use face loops as they are synchronised
// HJ, 21/May/2018
forAll (patchLocalFaces, faceI)
{
if (curMarkedPoints[patchMeshPoints[mpI]] > 1)
const face& curFace = patchLocalFaces[faceI];
// Reverse neighbour face (copy)
const face nbrFace =
nbrLocalFaces[faceI].reverseFace();
forAll (curFace, fpI)
{
// Mark the point on the other processor/side
markedPoints[nbrProcID][nbrMeshPoints[mpI]] =
curMarkedPoints[patchMeshPoints[mpI]];
const label patchMpI =
patchMeshPoints[curFace[fpI]];
const label nbrMpI =
nbrMeshPoints[nbrFace[fpI]];
if
(
curMarkedPoints[patchMpI] > 1
&& nbrMarkedPoints[nbrMpI] <= 1
)
{
nbrMarkedPoints[nbrMpI] =
curMarkedPoints[patchMpI];
nSynced++;
}
if
(
curMarkedPoints[patchMpI] <= 1
&& nbrMarkedPoints[nbrMpI] > 1
)
{
curMarkedPoints[patchMpI] =
nbrMarkedPoints[nbrMpI];
nSynced++;
}
}
}
}
}
// Count number of shared points per processor
forAll (curMarkedPoints, cpI)
{
if (curMarkedPoints[cpI] > 1)
{
nGlobalPointsPerProc[meshI]++;
}
}
}
}
newNTotalPoints = sum(nGlobalPointsPerProc);
Info<< "Proc merge pass. nSynced = " << nSynced << endl;
} while (nSynced > 0);
Info<< "Proc merge pass: " << oldNTotalPoints << " "
<< newNTotalPoints << endl;
} while (oldNTotalPoints != newNTotalPoints);
Info<< "Number of shared points per processor: " << nGlobalPointsPerProc
<< endl;
// Collect points for every processor, in order to re-use the markedPoints
// list. Note: the list of global labels of shared points
// will be collected later
// Grab marked points
forAll (meshes_, meshI)
{
if (meshes_.set(meshI))
{
labelList& curSharedPoints = sharedPointLabels_[meshI];
curSharedPoints.setSize(nGlobalPointsPerProc[meshI]);
// Count inserted points
// Count the points and then collect
label nShared = 0;
// Get point marking
const labelList& curMarkedPoints = markedPoints[meshI];
forAll (curMarkedPoints, pointI)
{
if (curMarkedPoints[pointI] > 1)
{
curSharedPoints[nShared] = pointI;
nShared++;
}
}
labelList& curShared = sharedPointLabels_[meshI];
curShared.setSize(nShared);
// Re-use the counter for insertion
nShared = 0;
forAll (curMarkedPoints, pointI)
{
if (curMarkedPoints[pointI] > 1)
{
curShared[nShared] = pointI;
nShared++;
}
}
const pointField& P = meshes_[meshI].points();
OFstream ppp("points" + name(meshI) + ".vtk");
ppp << "# vtk DataFile Version 2.0" << nl
<< "points" + name(meshI) << ".vtk" << nl
<< "ASCII" << nl
<< "DATASET POLYDATA" << nl
<< "POINTS " << curShared.size() << " float" << nl;
forAll (curShared, i)
{
ppp << float(P[curShared[i]].x()) << ' '
<< float(P[curShared[i]].y()) << ' '
<< float(P[curShared[i]].z())
<< nl;
}
}
}
@ -324,6 +376,7 @@ void Foam::sharedPoints::calcSharedPoints()
labelList& curMarkedPoints = markedPoints[meshI];
// Collect shared point addressing
forAll (curSharedPoints, spI)
{
if (curMarkedPoints[curSharedPoints[spI]] == -1)
@ -356,31 +409,60 @@ void Foam::sharedPoints::calcSharedPoints()
if (isA<processorPolyPatch>(pp))
{
// Found processor patch
// My processor patch
const processorPolyPatch& myProcPatch =
refCast<const processorPolyPatch>(pp);
const labelList& patchMeshPoints = pp.meshPoints();
// Get neighbour processor ID
const int nbrProcID = myProcPatch.neighbProcNo();
// Neighbour patch
const polyPatch& nbrPatch =
meshes_[nbrProcID].boundaryMesh()
[patchPairs[meshI][patchI]];
const labelList& nbrMeshPoints = nbrPatch.meshPoints();
forAll (patchMeshPoints, mpI)
if (myProcPatch.master())
{
if (curMarkedPoints[patchMeshPoints[mpI]] > -1)
// Get local mesh points
const labelList& patchMeshPoints = pp.meshPoints();
// Get my local faces
const faceList& patchLocalFaces = pp.localFaces();
// Get neighbour processor ID
const int nbrProcID = myProcPatch.neighbProcNo();
// Neighbour patch
const polyPatch& nbrPatch =
meshes_[nbrProcID].boundaryMesh()
[patchPairs[meshI][patchI]];
// Get neighbour mesh points
const labelList& nbrMeshPoints = nbrPatch.meshPoints();
// Get neighbour local faces
const faceList& nbrLocalFaces = nbrPatch.localFaces();
// Note:
// Cannot loop over mesh points because they are sorted
// Use face loops as they are synchronised
// HJ, 21/May/2018
forAll (patchLocalFaces, faceI)
{
// Mark opposite side
markedPoints[nbrProcID][nbrMeshPoints[mpI]] =
curMarkedPoints[patchMeshPoints[mpI]];
const face& curFace = patchLocalFaces[faceI];
// Reverse neighbour face (copy)
const face nbrFace =
nbrLocalFaces[faceI].reverseFace();
forAll (curFace, fpI)
{
const label patchMpI =
patchMeshPoints[curFace[fpI]];
const label nbrMpI =
nbrMeshPoints[nbrFace[fpI]];
if (curMarkedPoints[patchMpI] > -1)
{
// Mark opposite side
markedPoints[nbrProcID][nbrMpI] =
curMarkedPoints[patchMpI];
}
}
}
}
}

View file

@ -35,18 +35,12 @@ Description
- patch face ordering to be ok
- f[0] ordering on patch faces to be ok.
Works by constructing equivalence lists for all the points on processor
patches. These list are procPointList and give processor and meshPoint
label on that processor.
E.g.
@verbatim
((7 93)(4 731)(3 114))
@endverbatim
means point 93 on proc7 is connected to point 731 on proc4 and 114 on proc3.
It then gets the lowest numbered processor (the 'master') to request a
sharedPoint label from processor0 and it redistributes this label back to
the other processors in the equivalence list.
The class will create a unique list of multiply shared points
(on more than 2 mesh pieces). On each mesh piece, it will provide a
a list of local point labels that are globally shared (sharedPointLabels)
and for each of such points the index in the list of globally shared
points (sharedPointAddr). The class also provides the number of globally
shared points across all mesh pieces (nGlobalPoints)
Note
Currently operating with a PtrList<fvMesh>, whereas the operation actually
@ -118,9 +112,6 @@ class sharedPoints
public:
// Static data members
// Constructors
//- Construct from the list of meshes