[1999] | 1 | #include "grid_transform_connector.hpp" |
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| 2 | #include "element.hpp" |
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| 3 | #include "scatterer_connector.hpp" |
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| 4 | #include "gatherer_connector.hpp" |
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| 5 | #include "grid_remote_connector.hpp" |
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| 6 | |
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| 7 | |
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| 8 | namespace xios |
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| 9 | { |
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[2291] | 10 | void CGridTransformConnector::computeConnector(bool eliminateRedundant) |
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[1999] | 11 | { |
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| 12 | int commSize ; |
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| 13 | int commRank ; |
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| 14 | MPI_Comm_size(localComm_, &commSize) ; |
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| 15 | MPI_Comm_rank(localComm_, &commRank) ; |
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| 16 | int nElements = srcViews_.size() ; |
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| 17 | |
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[2267] | 18 | auto remoteConnector = make_shared<CGridRemoteConnector>(srcViews_, remoteViews_, localComm_, commSize) ; |
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[2291] | 19 | remoteConnector->computeConnector(eliminateRedundant) ; |
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[1999] | 20 | |
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[2267] | 21 | vector<shared_ptr<CDistributedElement>> sendElements(nElements) ; |
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[1999] | 22 | scattererConnector_.resize(nElements) ; |
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| 23 | gathererConnector_.resize(nElements) ; |
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| 24 | |
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| 25 | for(int i=0;i<nElements;i++) |
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| 26 | { |
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[2267] | 27 | sendElements[i] = make_shared<CDistributedElement>(srcViews_[i]->getGlobalSize(), remoteConnector->getDistributedGlobalIndex(i)) ; |
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[1999] | 28 | sendElements[i]->addFullView() ; |
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[2267] | 29 | scattererConnector_[i] = make_shared<CScattererConnector>(srcViews_[i], sendElements[i]->getView(CElementView::FULL), localComm_, commSize) ; |
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[1999] | 30 | scattererConnector_[i]->computeConnector() ; |
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| 31 | std::map<int, CArray<size_t,1>>& sendIndex = sendElements[i]->getGlobalIndex() ; |
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| 32 | |
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| 33 | // how much sender ? |
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| 34 | vector<int> nbSenders(commSize) ; |
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| 35 | int nbSender ; |
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| 36 | for(auto& it : sendIndex) nbSenders[it.first]=1 ; |
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| 37 | vector<int> recvCounts(commSize,1) ; |
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| 38 | MPI_Reduce_scatter(nbSenders.data(), &nbSender, recvCounts.data(), MPI_INT, MPI_SUM, localComm_) ; |
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| 39 | |
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| 40 | // transfer global index |
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| 41 | // send Index |
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| 42 | vector<MPI_Request> sendReq ; |
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| 43 | for(auto& it : sendIndex) |
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| 44 | { |
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| 45 | MPI_Request req ; |
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| 46 | MPI_Isend(it.second.dataFirst(), it.second.numElements(), MPI_SIZE_T, it.first,0, localComm_, &req) ; |
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| 47 | sendReq.push_back(req) ; |
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| 48 | } |
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| 49 | |
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| 50 | // receive index |
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| 51 | map<int,CArray<size_t,1>> recvIndex ; |
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| 52 | |
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| 53 | for(int j=0; j<nbSender; j++) |
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| 54 | { |
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| 55 | int size ; |
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| 56 | MPI_Status status ; |
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| 57 | MPI_Probe(MPI_ANY_SOURCE, 0, localComm_, &status ) ; |
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| 58 | MPI_Get_count(&status, MPI_SIZE_T, &size) ; |
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| 59 | vector<size_t> recvBuff(size) ; |
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| 60 | MPI_Recv(recvBuff.data(), size, MPI_SIZE_T, status.MPI_SOURCE,0, localComm_,&status) ; |
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[2189] | 61 | if (size!=0) { |
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| 62 | CArray<size_t,1> arrayTmp(recvBuff.data(), shape(recvBuff.size()), duplicateData) ; |
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| 63 | recvIndex[status.MPI_SOURCE].reference(arrayTmp) ; |
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| 64 | } |
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| 65 | else { |
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| 66 | CArray<size_t,1> arrayTmp(0) ; |
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| 67 | recvIndex[status.MPI_SOURCE].reference(arrayTmp) ; |
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| 68 | } |
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[1999] | 69 | if (recvRankSize_.count(status.MPI_SOURCE)==0) recvRankSize_[status.MPI_SOURCE] = size ; |
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| 70 | else recvRankSize_[status.MPI_SOURCE] *= size ; |
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| 71 | } |
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| 72 | vector<MPI_Status> sendStatus(sendReq.size()) ; |
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| 73 | MPI_Waitall(sendReq.size(),sendReq.data(),sendStatus.data()) ; |
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| 74 | |
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| 75 | // create gatherer connector |
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| 76 | |
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[2267] | 77 | auto recvElement = make_shared<CDistributedElement>(remoteViews_[i]->getGlobalSize(), recvIndex) ; |
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| 78 | recvElement->addFullView() ; |
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| 79 | gathererConnector_[i] = make_shared<CGathererConnector>(recvElement->getView(CElementView::FULL), remoteViews_[i]) ; |
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[1999] | 80 | gathererConnector_[i]->computeConnector() ; |
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| 81 | } |
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| 82 | |
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[2267] | 83 | gridScattererConnector_ = make_shared<CGridScattererConnector>(scattererConnector_) ; |
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| 84 | gridGathererConnector_ = make_shared<CGridGathererConnector>(gathererConnector_) ; |
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[1999] | 85 | } |
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| 86 | |
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[2189] | 87 | } |
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