[1918] | 1 | #ifndef __SCATTERER_CONNECTOR_HPP__ |
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| 2 | #define __SCATTERER_CONNECTOR_HPP__ |
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| 3 | |
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| 4 | #include "xios_spl.hpp" |
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| 5 | #include "array_new.hpp" |
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| 6 | #include "distributed_view.hpp" |
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| 7 | #include "mpi.hpp" |
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| 8 | #include "local_view.hpp" |
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| 9 | #include "distributed_view.hpp" |
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| 10 | #include "context_client.hpp" |
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| 11 | |
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| 12 | |
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| 13 | namespace xios |
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| 14 | { |
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| 15 | |
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| 16 | class CScattererConnector |
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| 17 | { |
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| 18 | |
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| 19 | private: |
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| 20 | map<int, vector<int>> connector_ ; |
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| 21 | map<int, vector<bool>> mask_ ; // mask is on dst view |
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| 22 | MPI_Comm localComm_ ; |
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| 23 | |
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| 24 | CLocalView* srcView_ ; |
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| 25 | CDistributedView* dstView_ ; |
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| 26 | map<int,int> nbSenders_ ; // number of participant when sending remote buffer |
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| 27 | int srcSize_ ; |
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| 28 | map<int,int> dstSize_ ; |
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| 29 | |
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| 30 | public: |
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| 31 | |
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| 32 | CScattererConnector(CLocalView* srcView, CDistributedView* dstView, MPI_Comm localComm) |
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| 33 | : srcView_(srcView), dstView_(dstView), localComm_(localComm) {} |
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| 34 | void computeConnector(void) ; |
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| 35 | |
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| 36 | template<typename T> |
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| 37 | void transfer(const CArray<T,1>& dataIn, map<int, CArray<T,1>>& dataOut) |
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| 38 | { |
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| 39 | for(auto& rankConnector : connector_) |
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| 40 | { |
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| 41 | int rank = rankConnector.first ; |
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| 42 | auto& connector = rankConnector.second ; |
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| 43 | auto& mask = mask_[rank] ; |
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| 44 | int dstSize = mask.size() ; |
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| 45 | auto& data = dataOut[rank] ; |
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| 46 | data.resize(dstSize) ; |
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| 47 | T* dstData = data.dataFirst() ; |
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| 48 | const T* srcData = dataIn.dataFirst() ; |
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| 49 | for(int i=0, j=0; i<dstSize; i++) |
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| 50 | if (mask[i]) |
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| 51 | { |
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| 52 | dstData[i] = srcData[connector[j]] ; |
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| 53 | j++ ; |
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| 54 | } |
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| 55 | } |
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| 56 | } |
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| 57 | |
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| 58 | template<typename T> |
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| 59 | void transfer(const CArray<T,1>& dataIn, CContextClient* client, CEventClient& event, const CMessage& messageHeader) |
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| 60 | { |
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| 61 | map<int, CArray<T,1>> dataOut ; |
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| 62 | transfer(dataIn, dataOut) ; |
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| 63 | sendToServer(dataOut, client, event, messageHeader) ; |
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| 64 | } |
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| 65 | |
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| 66 | template<typename T> |
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| 67 | void transfer(int rank, CScattererConnector** connectors, int nConnectors, const T* input, T* output) |
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| 68 | { |
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| 69 | auto& connector = connector_[rank] ; // probably costly, find a better way to avoid the map |
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| 70 | auto& mask = mask_[rank] ; |
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| 71 | int dstSize = mask.size() ; |
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| 72 | if (nConnectors==0) |
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| 73 | { |
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| 74 | for(int i=0, j=0; i<dstSize; i++) |
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| 75 | if (mask[i]) |
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| 76 | { |
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| 77 | *(output+i)=*(input+connector[j]) ; |
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| 78 | j++ ; |
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| 79 | } |
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| 80 | |
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| 81 | } |
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| 82 | else |
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| 83 | { |
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| 84 | int srcSliceSize = (*(connectors-1))->getSrcSliceSize(connectors-1, nConnectors-1) ; |
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| 85 | int dstSliceSize = (*(connectors-1))->getDstSliceSize(rank, connectors-1, nConnectors-1) ; |
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| 86 | |
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| 87 | T* out = output ; |
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| 88 | for(int i=0,j=0;i<dstSize;i++) |
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| 89 | { |
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| 90 | if (mask[i]) |
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| 91 | { |
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| 92 | (*(connectors-1))->transfer(rank, connectors-1, nConnectors-1, input+connector[j]*srcSliceSize, out) ; // the multiplication must be avoid in further optimization |
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| 93 | j++ ; |
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| 94 | } |
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| 95 | out += dstSliceSize ; |
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| 96 | } |
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| 97 | } |
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| 98 | } |
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| 99 | |
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| 100 | |
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| 101 | template<typename T> |
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| 102 | void sendToServer(const map<int, CArray<T,1>>& dataOut, CContextClient* client, CEventClient& event, const CMessage& messageHeader) |
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| 103 | { |
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| 104 | list<CMessage> messages; |
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| 105 | for(auto ranksData : dataOut) |
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| 106 | { |
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| 107 | int rank = ranksData.first ; |
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| 108 | auto& data = ranksData.second ; |
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| 109 | |
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| 110 | messages.push_back(CMessage(messageHeader)); |
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| 111 | messages.back().push(data) ; |
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| 112 | event.push(rank, nbSenders_[rank], messages.back()); |
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| 113 | } |
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| 114 | client->sendEvent(event) ; |
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| 115 | } |
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| 116 | |
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| 117 | int getSrcSliceSize(CScattererConnector** connectors, int nConnectors) |
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| 118 | { if (nConnectors==0) return srcSize_ ; else return srcSize_ * (*(connectors-1))->getSrcSliceSize(connectors-1,nConnectors-1) ; } |
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| 119 | |
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| 120 | int getDstSliceSize(int rank, CScattererConnector** connectors, int nConnectors) |
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| 121 | { if (nConnectors==0) return dstSize_[rank] ; else return dstSize_[rank] * (*(connectors-1))->getDstSliceSize(rank, connectors-1,nConnectors-1) ; } |
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| 122 | |
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| 123 | const map<int,int>& getNbSenders(void) {return nbSenders_ ;} |
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| 124 | const map<int,int>& getDstSize(void) { return dstSize_ ;} |
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| 125 | } ; |
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| 126 | } |
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| 127 | |
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| 128 | #endif |
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