//
-// Copyright (C) 2020 CEA/DEN, EDF R&D
+// Copyright (C) 2020-2024 CEA, EDF
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
MCAuto<DataArrayIdType> ParaUMesh::getCellIdsLyingOnNodes(const DataArrayIdType *globalNodeIds, bool fullyIn) const
{
if(fullyIn)
- throw INTERP_KERNEL::Exception("ParaUMesh::getCellIdsLyingOnNodes : not implemented yet for fullyIn == True !");
+ return this->getCellIdsLyingOnNodesTrue(globalNodeIds);
+ else
+ return this->getCellIdsLyingOnNodesFalse(globalNodeIds);
+}
+
+MCAuto<DataArrayIdType> ParaUMesh::getCellIdsLyingOnNodesTrue(const DataArrayIdType *globalNodeIds) const
+{
MPI_Comm comm(MPI_COMM_WORLD);
CommInterface ci;
int size;
mcIdType nbOfNodeIdsLoc(globalNodeIds->getNumberOfTuples());
ci.allGather(&nbOfNodeIdsLoc,1,MPI_ID_TYPE,nbOfElems.get(),1,MPI_ID_TYPE,comm);
std::vector< MCAuto<DataArrayIdType> > tabs(size);
+ //store for each proc the local nodeids intercepted by current proc
+ int nbOfCollectiveCalls = 1;// this parameter controls the memory peak
+ // loop to avoid to all procs to have all the nodes per proc
+ for(int subDiv = 0 ; subDiv < nbOfCollectiveCalls ; ++subDiv)
+ {
+ std::unique_ptr<mcIdType[]> nbOfElemsSp(CommInterface::SplitArrayOfLength(nbOfElems,size,subDiv,nbOfCollectiveCalls));
+ mcIdType nbOfNodeIdsSum(std::accumulate(nbOfElemsSp.get(),nbOfElemsSp.get()+size,0));
+ std::unique_ptr<mcIdType[]> allGlobalNodeIds(new mcIdType[nbOfNodeIdsSum]);
+ std::unique_ptr<int[]> nbOfElemsInt( CommInterface::ToIntArray<mcIdType>(nbOfElemsSp,size) );
+ std::unique_ptr<int[]> offsetsIn( CommInterface::ComputeOffset(nbOfElemsInt,size) );
+ mcIdType startGlobalNodeIds,endGlobalNodeIds;
+ DataArray::GetSlice(0,globalNodeIds->getNumberOfTuples(),1,subDiv,nbOfCollectiveCalls,startGlobalNodeIds,endGlobalNodeIds);
+ ci.allGatherV(globalNodeIds->begin()+startGlobalNodeIds,FromIdType<int>(endGlobalNodeIds-startGlobalNodeIds),MPI_ID_TYPE,allGlobalNodeIds.get(),nbOfElemsInt.get(),offsetsIn.get(),MPI_ID_TYPE,comm);
+ mcIdType offset(0);
+ for(int curRk = 0 ; curRk < size ; ++curRk)
+ {
+ MCAuto<DataArrayIdType> globalNodeIdsOfCurProc(DataArrayIdType::New());
+ globalNodeIdsOfCurProc->useArray(allGlobalNodeIds.get()+offset,false,DeallocType::CPP_DEALLOC,nbOfElemsSp[curRk],1);
+ offset += nbOfElemsSp[curRk];
+ MCAuto<DataArrayIdType> globalNodeIdsCaptured(_node_global->buildIntersection(globalNodeIdsOfCurProc));
+ MCAuto<DataArrayIdType> localNodeIdsToLocate(_node_global->findIdForEach(globalNodeIdsCaptured->begin(),globalNodeIdsCaptured->end()));
+ if(tabs[curRk].isNull())
+ tabs[curRk] = localNodeIdsToLocate;
+ else
+ tabs[curRk]->insertAtTheEnd(localNodeIdsToLocate->begin(),localNodeIdsToLocate->end());
+ }
+ }
+
+ for(int curRk = 0 ; curRk < size ; ++curRk)
+ {
+ MCAuto<DataArrayIdType> localNodeIds(tabs[curRk]);
+ localNodeIds->sort();
+ MCAuto<DataArrayIdType> localNodeIdsUnique(localNodeIds->buildUnique());
+ MCAuto<DataArrayIdType> localCellCaptured(_mesh->getCellIdsLyingOnNodes(localNodeIdsUnique->begin(),localNodeIdsUnique->end(),true));
+ MCAuto<DataArrayIdType> localCellCapturedGlob(_cell_global->selectByTupleIdSafe(localCellCaptured->begin(),localCellCaptured->end()));
+ tabs[curRk] = localCellCapturedGlob;
+ }
+
+ for(int curRk = 0 ; curRk < size ; ++curRk)
+ {
+ tabs[curRk] = tabs[curRk]->buildUniqueNotSorted();
+ nbOfElems3[curRk] = tabs[curRk]->getNumberOfTuples();
+ }
+ std::vector<const DataArrayIdType *> tabss(tabs.begin(),tabs.end());
+ MCAuto<DataArrayIdType> cells(DataArrayIdType::Aggregate(tabss));
+ ci.allToAll(nbOfElems3.get(),1,MPI_ID_TYPE,nbOfElems2.get(),1,MPI_ID_TYPE,comm);
+ mcIdType nbOfCellIdsSum(std::accumulate(nbOfElems2.get(),nbOfElems2.get()+size,0));
+ MCAuto<DataArrayIdType> cellIdsFromProcs(DataArrayIdType::New());
+ cellIdsFromProcs->alloc(nbOfCellIdsSum,1);
+ {
+ std::unique_ptr<int[]> nbOfElemsInt( CommInterface::ToIntArray<mcIdType>(nbOfElems3,size) ),nbOfElemsOutInt( CommInterface::ToIntArray<mcIdType>(nbOfElems2,size) );
+ std::unique_ptr<int[]> offsetsIn( CommInterface::ComputeOffset(nbOfElemsInt,size) ), offsetsOut( CommInterface::ComputeOffset(nbOfElemsOutInt,size) );
+ ci.allToAllV(cells->begin(),nbOfElemsInt.get(),offsetsIn.get(),MPI_ID_TYPE,
+ cellIdsFromProcs->getPointer(),nbOfElemsOutInt.get(),offsetsOut.get(),MPI_ID_TYPE,comm);
+ }
+ cellIdsFromProcs->sort();
+ return cellIdsFromProcs;
+}
+
+MCAuto<DataArrayIdType> ParaUMesh::getCellIdsLyingOnNodesFalse(const DataArrayIdType *globalNodeIds) const
+{
+ MPI_Comm comm(MPI_COMM_WORLD);
+ CommInterface ci;
+ int size;
+ ci.commSize(comm,&size);
+ std::unique_ptr<mcIdType[]> nbOfElems(new mcIdType[size]),nbOfElems2(new mcIdType[size]),nbOfElems3(new mcIdType[size]);
+ mcIdType nbOfNodeIdsLoc(globalNodeIds->getNumberOfTuples());
+ ci.allGather(&nbOfNodeIdsLoc,1,MPI_ID_TYPE,nbOfElems.get(),1,MPI_ID_TYPE,comm);
// loop to avoid to all procs to have all the nodes per proc
- for(int subDiv = 0 ; subDiv < size ; ++subDiv)
+ int nbOfCollectiveCalls = 1;// this parameter controls the memory peak
+ std::vector< MCAuto<DataArrayIdType> > tabs(size);
+ for(int subDiv = 0 ; subDiv < nbOfCollectiveCalls ; ++subDiv)
{
- std::unique_ptr<mcIdType[]> nbOfElemsSp(CommInterface::SplitArrayOfLength(nbOfElems,size,subDiv,size));
+ std::unique_ptr<mcIdType[]> nbOfElemsSp(CommInterface::SplitArrayOfLength(nbOfElems,size,subDiv,nbOfCollectiveCalls));
mcIdType nbOfNodeIdsSum(std::accumulate(nbOfElemsSp.get(),nbOfElemsSp.get()+size,0));
std::unique_ptr<mcIdType[]> allGlobalNodeIds(new mcIdType[nbOfNodeIdsSum]);
std::unique_ptr<int[]> nbOfElemsInt( CommInterface::ToIntArray<mcIdType>(nbOfElemsSp,size) );
std::unique_ptr<int[]> offsetsIn( CommInterface::ComputeOffset(nbOfElemsInt,size) );
mcIdType startGlobalNodeIds,endGlobalNodeIds;
- DataArray::GetSlice(0,globalNodeIds->getNumberOfTuples(),1,subDiv,size,startGlobalNodeIds,endGlobalNodeIds);
- ci.allGatherV(globalNodeIds->begin()+startGlobalNodeIds,endGlobalNodeIds-startGlobalNodeIds,MPI_ID_TYPE,allGlobalNodeIds.get(),nbOfElemsInt.get(),offsetsIn.get(),MPI_ID_TYPE,comm);
+ DataArray::GetSlice(0,globalNodeIds->getNumberOfTuples(),1,subDiv,nbOfCollectiveCalls,startGlobalNodeIds,endGlobalNodeIds);
+ ci.allGatherV(globalNodeIds->begin()+startGlobalNodeIds,FromIdType<int>(endGlobalNodeIds-startGlobalNodeIds),MPI_ID_TYPE,allGlobalNodeIds.get(),nbOfElemsInt.get(),offsetsIn.get(),MPI_ID_TYPE,comm);
mcIdType offset(0);
for(int curRk = 0 ; curRk < size ; ++curRk)
{
