//
-// 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 < size ; ++subDiv)
+ 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)
{
offset += nbOfElemsSp[curRk];
MCAuto<DataArrayIdType> globalNodeIdsCaptured(_node_global->buildIntersection(globalNodeIdsOfCurProc));
MCAuto<DataArrayIdType> localNodeIdsToLocate(_node_global->findIdForEach(globalNodeIdsCaptured->begin(),globalNodeIdsCaptured->end()));
- MCAuto<DataArrayIdType> localCellCaptured(_mesh->getCellIdsLyingOnNodes(localNodeIdsToLocate->begin(),localNodeIdsToLocate->end(),false));
- MCAuto<DataArrayIdType> localCellCapturedGlob(_cell_global->selectByTupleIdSafe(localCellCaptured->begin(),localCellCaptured->end()));
if(tabs[curRk].isNull())
- tabs[curRk] = localCellCapturedGlob;
+ tabs[curRk] = localNodeIdsToLocate;
else
- tabs[curRk]->insertAtTheEnd(localCellCapturedGlob->begin(),localCellCapturedGlob->end());
+ 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();
return cellIdsFromProcs;
}
-DataArrayIdType *ParaUMesh::redistributeCellField(const DataArrayIdType *globalCellIds, const DataArrayIdType *fieldValueToRed) const
+MCAuto<DataArrayIdType> ParaUMesh::getCellIdsLyingOnNodesFalse(const DataArrayIdType *globalNodeIds) const
{
MPI_Comm comm(MPI_COMM_WORLD);
CommInterface ci;
- std::unique_ptr<mcIdType[]> allGlobalCellIds,allGlobalCellIdsIndex;
- int size(ci.allGatherArrays(comm,globalCellIds,allGlobalCellIds,allGlobalCellIdsIndex));
- // Prepare ParaUMesh parts to be sent : compute for each proc the contribution of current rank.
- std::vector< MCAuto<DataArrayIdType> > globalCellIdsToBeSent(size);
- std::vector< MCAuto<DataArrayIdType> > fieldToBeSent(size);
+ 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
+ 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,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()));
+ MCAuto<DataArrayIdType> localCellCaptured(_mesh->getCellIdsLyingOnNodes(localNodeIdsToLocate->begin(),localNodeIdsToLocate->end(),false));
+ MCAuto<DataArrayIdType> localCellCapturedGlob(_cell_global->selectByTupleIdSafe(localCellCaptured->begin(),localCellCaptured->end()));
+ if(tabs[curRk].isNull())
+ tabs[curRk] = localCellCapturedGlob;
+ else
+ tabs[curRk]->insertAtTheEnd(localCellCapturedGlob->begin(),localCellCapturedGlob->end());
+ }
+ }
for(int curRk = 0 ; curRk < size ; ++curRk)
{
- mcIdType offset(allGlobalCellIdsIndex[curRk]);
- MCAuto<DataArrayIdType> globalCellIdsOfCurProc(DataArrayIdType::New());
- globalCellIdsOfCurProc->useArray(allGlobalCellIds.get()+offset,false,DeallocType::CPP_DEALLOC,allGlobalCellIdsIndex[curRk+1]-offset,1);
- // the key call is here : compute for rank curRk the cells to be sent
- MCAuto<DataArrayIdType> globalCellIdsCaptured(_cell_global->buildIntersection(globalCellIdsOfCurProc));// OK for the global cellIds
- MCAuto<DataArrayIdType> localCellIdsCaptured(_cell_global->findIdForEach(globalCellIdsCaptured->begin(),globalCellIdsCaptured->end()));
- globalCellIdsToBeSent[curRk] = globalCellIdsCaptured;
- fieldToBeSent[curRk] = fieldValueToRed->selectByTupleIdSafe(localCellIdsCaptured->begin(),localCellIdsCaptured->end());
+ tabs[curRk] = tabs[curRk]->buildUniqueNotSorted();
+ nbOfElems3[curRk] = tabs[curRk]->getNumberOfTuples();
}
- // Receive
- std::vector< MCAuto<DataArrayIdType> > globalCellIdsReceived;
- ci.allToAllArrays(comm,globalCellIdsToBeSent,globalCellIdsReceived);
- std::vector< MCAuto<DataArrayIdType> > fieldValueReceived;
- ci.allToAllArrays(comm,fieldToBeSent,fieldValueReceived);
- // use globalCellIdsReceived to reorganize everything
- MCAuto<DataArrayIdType> aggregatedCellIds( DataArrayIdType::Aggregate(FromVecAutoToVecOfConst<DataArrayIdType>(globalCellIdsReceived)) );
- MCAuto<DataArrayIdType> aggregatedCellIdsSorted(aggregatedCellIds->copySorted());
- MCAuto<DataArrayIdType> idsIntoAggregatedIds(DataArrayIdType::FindPermutationFromFirstToSecondDuplicate(aggregatedCellIdsSorted,aggregatedCellIds));
- MCAuto<DataArrayIdType> cellIdsOfSameNodeIds(aggregatedCellIdsSorted->indexOfSameConsecutiveValueGroups());
- MCAuto<DataArrayIdType> n2o_cells(idsIntoAggregatedIds->selectByTupleIdSafe(cellIdsOfSameNodeIds->begin(),cellIdsOfSameNodeIds->end()-1));//new == new ordering so that global cell ids are sorted . old == coarse ordering implied by the aggregation
- //
- MCAuto<DataArrayIdType> fieldAggregated(DataArrayIdType::Aggregate(FromVecAutoToVecOfConst<DataArrayIdType>(fieldValueReceived)));
- MCAuto<DataArrayIdType> ret(fieldAggregated->selectByTupleIdSafe(n2o_cells->begin(),n2o_cells->end()));
- return ret.retn();
+ 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;
+}
+
+DataArrayIdType *ParaUMesh::redistributeCellField(const DataArrayIdType *globalCellIds, const DataArrayIdType *fieldValueToRed) const
+{
+ return this->redistributeCellFieldT<mcIdType>(globalCellIds,fieldValueToRed);
+}
+
+DataArrayDouble *ParaUMesh::redistributeCellField(const DataArrayIdType *globalCellIds, const DataArrayDouble *fieldValueToRed) const
+{
+ return this->redistributeCellFieldT<double>(globalCellIds,fieldValueToRed);
}
DataArrayIdType *ParaUMesh::redistributeNodeField(const DataArrayIdType *globalCellIds, const DataArrayIdType *fieldValueToRed) const
{
- MPI_Comm comm(MPI_COMM_WORLD);
- CommInterface ci;
- std::unique_ptr<mcIdType[]> allGlobalCellIds,allGlobalCellIdsIndex;
- int size(ci.allGatherArrays(comm,globalCellIds,allGlobalCellIds,allGlobalCellIdsIndex));
- // Prepare ParaUMesh parts to be sent : compute for each proc the contribution of current rank.
- std::vector< MCAuto<DataArrayIdType> > globalNodeIdsToBeSent(size);
- std::vector< MCAuto<DataArrayIdType> > fieldToBeSent(size);
- for(int curRk = 0 ; curRk < size ; ++curRk)
- {
- mcIdType offset(allGlobalCellIdsIndex[curRk]);
- MCAuto<DataArrayIdType> globalCellIdsOfCurProc(DataArrayIdType::New());
- globalCellIdsOfCurProc->useArray(allGlobalCellIds.get()+offset,false,DeallocType::CPP_DEALLOC,allGlobalCellIdsIndex[curRk+1]-offset,1);
- // the key call is here : compute for rank curRk the cells to be sent
- MCAuto<DataArrayIdType> globalCellIdsCaptured(_cell_global->buildIntersection(globalCellIdsOfCurProc));// OK for the global cellIds
- MCAuto<DataArrayIdType> localCellIdsCaptured(_cell_global->findIdForEach(globalCellIdsCaptured->begin(),globalCellIdsCaptured->end()));
- MCAuto<MEDCouplingUMesh> meshPart(_mesh->buildPartOfMySelf(localCellIdsCaptured->begin(),localCellIdsCaptured->end(),true));
- MCAuto<DataArrayIdType> o2n(meshPart->zipCoordsTraducer());// OK for the mesh
- MCAuto<DataArrayIdType> n2o(o2n->invertArrayO2N2N2O(meshPart->getNumberOfNodes()));
- MCAuto<DataArrayIdType> globalNodeIdsPart(_node_global->selectByTupleIdSafe(n2o->begin(),n2o->end())); // OK for the global nodeIds
- globalNodeIdsToBeSent[curRk] = globalNodeIdsPart;
- fieldToBeSent[curRk] = fieldValueToRed->selectByTupleIdSafe(n2o->begin(),n2o->end());
- }
- // Receive
- std::vector< MCAuto<DataArrayIdType> > globalNodeIdsReceived;
- ci.allToAllArrays(comm,globalNodeIdsToBeSent,globalNodeIdsReceived);
- std::vector< MCAuto<DataArrayIdType> > fieldValueReceived;
- ci.allToAllArrays(comm,fieldToBeSent,fieldValueReceived);
- // firstly deal with nodes.
- MCAuto<DataArrayIdType> aggregatedNodeIds( DataArrayIdType::Aggregate(FromVecAutoToVecOfConst<DataArrayIdType>(globalNodeIdsReceived)) );
- MCAuto<DataArrayIdType> aggregatedNodeIdsSorted(aggregatedNodeIds->copySorted());
- MCAuto<DataArrayIdType> nodeIdsIntoAggregatedIds(DataArrayIdType::FindPermutationFromFirstToSecondDuplicate(aggregatedNodeIdsSorted,aggregatedNodeIds));
- MCAuto<DataArrayIdType> idxOfSameNodeIds(aggregatedNodeIdsSorted->indexOfSameConsecutiveValueGroups());
- MCAuto<DataArrayIdType> n2o_nodes(nodeIdsIntoAggregatedIds->selectByTupleIdSafe(idxOfSameNodeIds->begin(),idxOfSameNodeIds->end()-1));//new == new ordering so that global node ids are sorted . old == coarse ordering implied by the aggregation
- //
- MCAuto<DataArrayIdType> fieldAggregated(DataArrayIdType::Aggregate(FromVecAutoToVecOfConst<DataArrayIdType>(fieldValueReceived)));
- MCAuto<DataArrayIdType> ret(fieldAggregated->selectByTupleIdSafe(n2o_nodes->begin(),n2o_nodes->end()));
- //
- return ret.retn();
+ return this->redistributeNodeFieldT<mcIdType>(globalCellIds,fieldValueToRed);
+}
+
+DataArrayDouble *ParaUMesh::redistributeNodeField(const DataArrayIdType *globalCellIds, const DataArrayDouble *fieldValueToRed) const
+{
+ return this->redistributeNodeFieldT<double>(globalCellIds,fieldValueToRed);
}
/*!
