[300] | 1 | #include "context_server.hpp" |
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| 2 | #include "buffer_in.hpp" |
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| 3 | #include "type.hpp" |
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| 4 | #include "context.hpp" |
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[352] | 5 | #include "object_template.hpp" |
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| 6 | #include "group_template.hpp" |
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| 7 | #include "attribute_template.hpp" |
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[300] | 8 | #include "domain.hpp" |
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[352] | 9 | #include "field.hpp" |
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| 10 | #include "file.hpp" |
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| 11 | #include "grid.hpp" |
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[382] | 12 | #include "mpi.hpp" |
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[347] | 13 | #include "tracer.hpp" |
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| 14 | #include "timer.hpp" |
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[401] | 15 | #include "cxios.hpp" |
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[492] | 16 | #include "event_scheduler.hpp" |
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| 17 | #include "server.hpp" |
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[1761] | 18 | #include "servers_ressource.hpp" |
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| 19 | #include "pool_ressource.hpp" |
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| 20 | #include "services.hpp" |
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| 21 | #include "contexts_manager.hpp" |
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[2130] | 22 | #include "timeline_events.hpp" |
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[1761] | 23 | |
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[492] | 24 | #include <boost/functional/hash.hpp> |
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[1761] | 25 | #include <random> |
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| 26 | #include <chrono> |
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[300] | 27 | |
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| 28 | |
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[335] | 29 | namespace xios |
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[300] | 30 | { |
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[1761] | 31 | using namespace std ; |
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[300] | 32 | |
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[1853] | 33 | CContextServer::CContextServer(CContext* parent,MPI_Comm intraComm_,MPI_Comm interComm_) |
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| 34 | : eventScheduler_(nullptr), isProcessingEvent_(false), associatedClient_(nullptr) |
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[300] | 35 | { |
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[549] | 36 | context=parent; |
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| 37 | intraComm=intraComm_; |
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[1639] | 38 | MPI_Comm_size(intraComm,&intraCommSize); |
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| 39 | MPI_Comm_rank(intraComm,&intraCommRank); |
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[1054] | 40 | |
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[549] | 41 | interComm=interComm_; |
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| 42 | int flag; |
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[1639] | 43 | MPI_Comm_test_inter(interComm,&flag); |
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[1757] | 44 | |
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| 45 | if (flag) attachedMode=false ; |
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| 46 | else attachedMode=true ; |
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| 47 | |
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[1639] | 48 | if (flag) MPI_Comm_remote_size(interComm,&commSize); |
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| 49 | else MPI_Comm_size(interComm,&commSize); |
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[983] | 50 | |
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[1761] | 51 | |
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| 52 | SRegisterContextInfo contextInfo ; |
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| 53 | CXios::getContextsManager()->getContextInfo(context->getId(), contextInfo, intraComm) ; |
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| 54 | |
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[2022] | 55 | // if (contextInfo.serviceType != CServicesManager::CLIENT) // we must have an event scheduler => to be retrieve from the associated services |
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| 56 | // { |
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[2123] | 57 | //if (!isAttachedModeEnabled()) eventScheduler_=CXios::getPoolRessource()->getService(contextInfo.serviceId,contextInfo.partitionId)->getEventScheduler() ; |
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[2230] | 58 | eventScheduler_=CXios::getPoolRessource()->getService(contextInfo.serviceId,contextInfo.partitionId)->getEventScheduler() ; |
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| 59 | MPI_Comm_dup(intraComm, &processEventBarrier_) ; |
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[2022] | 60 | // } |
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[1761] | 61 | |
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| 62 | |
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[1757] | 63 | currentTimeLine=1; |
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[549] | 64 | scheduled=false; |
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| 65 | finished=false; |
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[1761] | 66 | |
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| 67 | // generate unique hash for server |
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| 68 | auto time=chrono::system_clock::now().time_since_epoch().count() ; |
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| 69 | std::default_random_engine rd(time); // not reproducible from a run to another |
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| 70 | std::uniform_int_distribution<size_t> dist; |
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| 71 | hashId=dist(rd) ; |
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| 72 | MPI_Bcast(&hashId,1,MPI_SIZE_T,0,intraComm) ; // Bcast to all server of the context |
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| 73 | |
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| 74 | |
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[1757] | 75 | if (!isAttachedModeEnabled()) |
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| 76 | { |
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| 77 | MPI_Intercomm_merge(interComm_,true,&interCommMerged) ; |
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| 78 | // create windows for one sided comm |
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| 79 | int interCommMergedRank; |
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| 80 | MPI_Comm winComm ; |
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| 81 | MPI_Comm_rank(intraComm, &interCommMergedRank); |
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| 82 | windows.resize(2) ; |
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| 83 | for(int rank=commSize; rank<commSize+intraCommSize; rank++) |
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| 84 | { |
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| 85 | if (rank==commSize+interCommMergedRank) |
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| 86 | { |
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| 87 | MPI_Comm_split(interCommMerged, interCommMergedRank, rank, &winComm); |
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| 88 | int myRank ; |
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| 89 | MPI_Comm_rank(winComm,&myRank); |
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| 90 | MPI_Win_create_dynamic(MPI_INFO_NULL, winComm, &windows[0]); |
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| 91 | MPI_Win_create_dynamic(MPI_INFO_NULL, winComm, &windows[1]); |
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| 92 | } |
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| 93 | else MPI_Comm_split(interCommMerged, interCommMergedRank, rank, &winComm); |
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[2230] | 94 | // ym : Warning : intelMPI doesn't support that communicator of windows be deallocated before the windows deallocation, crash at MPI_Win_lock |
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| 95 | // Bug or not ? |
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| 96 | // MPI_Comm_free(&winComm) ; |
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[1757] | 97 | } |
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| 98 | } |
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| 99 | else |
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| 100 | { |
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| 101 | windows.resize(2) ; |
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| 102 | windows[0]=MPI_WIN_NULL ; |
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| 103 | windows[1]=MPI_WIN_NULL ; |
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| 104 | } |
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| 105 | |
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| 106 | |
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| 107 | |
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| 108 | MPI_Comm_split(intraComm_,intraCommRank,intraCommRank, &commSelf) ; |
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| 109 | itLastTimeLine=lastTimeLine.begin() ; |
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| 110 | |
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| 111 | pureOneSided=CXios::getin<bool>("pure_one_sided",false); // pure one sided communication (for test) |
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| 112 | if (isAttachedModeEnabled()) pureOneSided=false ; // no one sided in attach mode |
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| 113 | |
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[300] | 114 | } |
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[992] | 115 | |
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[1757] | 116 | //! Attached mode is used ? |
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| 117 | //! \return true if attached mode is used, false otherwise |
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| 118 | bool CContextServer::isAttachedModeEnabled() const |
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| 119 | { |
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| 120 | return attachedMode ; |
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| 121 | } |
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| 122 | |
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[300] | 123 | void CContextServer::setPendingEvent(void) |
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| 124 | { |
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[549] | 125 | pendingEvent=true; |
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[300] | 126 | } |
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[489] | 127 | |
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[300] | 128 | bool CContextServer::hasPendingEvent(void) |
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| 129 | { |
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[549] | 130 | return pendingEvent; |
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[300] | 131 | } |
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[489] | 132 | |
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[597] | 133 | bool CContextServer::hasFinished(void) |
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| 134 | { |
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| 135 | return finished; |
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| 136 | } |
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| 137 | |
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[1054] | 138 | bool CContextServer::eventLoop(bool enableEventsProcessing /*= true*/) |
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[300] | 139 | { |
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[549] | 140 | listen(); |
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| 141 | checkPendingRequest(); |
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[1757] | 142 | if (enableEventsProcessing) processEvents(); |
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[549] | 143 | return finished; |
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[300] | 144 | } |
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| 145 | |
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| 146 | void CContextServer::listen(void) |
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| 147 | { |
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| 148 | int rank; |
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[549] | 149 | int flag; |
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| 150 | int count; |
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| 151 | char * addr; |
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[1639] | 152 | MPI_Status status; |
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[300] | 153 | map<int,CServerBuffer*>::iterator it; |
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[1230] | 154 | bool okLoop; |
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[489] | 155 | |
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[1225] | 156 | traceOff(); |
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[2223] | 157 | // WARNING : with intel MPI, probing crash on an intercommunicator with release library but not with release_mt |
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| 158 | // ==> source $I_MPI_ROOT/intel64/bin/mpivars.sh release_mt needed |
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[1225] | 159 | MPI_Iprobe(MPI_ANY_SOURCE, 20,interComm,&flag,&status); |
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| 160 | traceOn(); |
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| 161 | |
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| 162 | if (flag==true) |
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[300] | 163 | { |
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[1225] | 164 | rank=status.MPI_SOURCE ; |
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[1230] | 165 | okLoop = true; |
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[1228] | 166 | if (pendingRequest.find(rank)==pendingRequest.end()) |
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| 167 | okLoop = !listenPendingRequest(status) ; |
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| 168 | if (okLoop) |
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[300] | 169 | { |
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[1225] | 170 | for(rank=0;rank<commSize;rank++) |
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[300] | 171 | { |
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[1225] | 172 | if (pendingRequest.find(rank)==pendingRequest.end()) |
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[300] | 173 | { |
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[1225] | 174 | |
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| 175 | traceOff(); |
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[1639] | 176 | MPI_Iprobe(rank, 20,interComm,&flag,&status); |
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[1225] | 177 | traceOn(); |
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| 178 | if (flag==true) listenPendingRequest(status) ; |
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[300] | 179 | } |
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| 180 | } |
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| 181 | } |
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| 182 | } |
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| 183 | } |
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[489] | 184 | |
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[1639] | 185 | bool CContextServer::listenPendingRequest(MPI_Status& status) |
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[1225] | 186 | { |
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| 187 | int count; |
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| 188 | char * addr; |
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| 189 | map<int,CServerBuffer*>::iterator it; |
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| 190 | int rank=status.MPI_SOURCE ; |
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| 191 | |
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| 192 | it=buffers.find(rank); |
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| 193 | if (it==buffers.end()) // Receive the buffer size and allocate the buffer |
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| 194 | { |
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[2130] | 195 | MPI_Aint recvBuff[4] ; |
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| 196 | MPI_Recv(recvBuff, 4, MPI_AINT, rank, 20, interComm, &status); |
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| 197 | remoteHashId_ = recvBuff[0] ; |
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| 198 | StdSize buffSize = recvBuff[1]; |
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[1757] | 199 | vector<MPI_Aint> winAdress(2) ; |
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[2130] | 200 | winAdress[0]=recvBuff[2] ; winAdress[1]=recvBuff[3] ; |
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[1225] | 201 | mapBufferSize_.insert(std::make_pair(rank, buffSize)); |
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[1757] | 202 | it=(buffers.insert(pair<int,CServerBuffer*>(rank,new CServerBuffer(windows, winAdress, rank, buffSize)))).first; |
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[1765] | 203 | |
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[1757] | 204 | lastTimeLine[rank]=0 ; |
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| 205 | itLastTimeLine=lastTimeLine.begin() ; |
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| 206 | |
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[1228] | 207 | return true; |
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[1225] | 208 | } |
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| 209 | else |
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| 210 | { |
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[1639] | 211 | MPI_Get_count(&status,MPI_CHAR,&count); |
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[1225] | 212 | if (it->second->isBufferFree(count)) |
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| 213 | { |
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| 214 | addr=(char*)it->second->getBuffer(count); |
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[1639] | 215 | MPI_Irecv(addr,count,MPI_CHAR,rank,20,interComm,&pendingRequest[rank]); |
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[1225] | 216 | bufferRequest[rank]=addr; |
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[1228] | 217 | return true; |
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[1225] | 218 | } |
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[1228] | 219 | else |
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| 220 | return false; |
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[1225] | 221 | } |
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| 222 | } |
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| 223 | |
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| 224 | |
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[300] | 225 | void CContextServer::checkPendingRequest(void) |
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| 226 | { |
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[1639] | 227 | map<int,MPI_Request>::iterator it; |
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[549] | 228 | list<int> recvRequest; |
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[300] | 229 | list<int>::iterator itRecv; |
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[549] | 230 | int rank; |
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| 231 | int flag; |
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| 232 | int count; |
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[1639] | 233 | MPI_Status status; |
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[489] | 234 | |
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[300] | 235 | for(it=pendingRequest.begin();it!=pendingRequest.end();it++) |
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| 236 | { |
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[549] | 237 | rank=it->first; |
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| 238 | traceOff(); |
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[1639] | 239 | MPI_Test(& it->second, &flag, &status); |
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[549] | 240 | traceOn(); |
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[300] | 241 | if (flag==true) |
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| 242 | { |
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[1757] | 243 | buffers[rank]->updateCurrentWindows() ; |
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[549] | 244 | recvRequest.push_back(rank); |
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[1639] | 245 | MPI_Get_count(&status,MPI_CHAR,&count); |
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[549] | 246 | processRequest(rank,bufferRequest[rank],count); |
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[300] | 247 | } |
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| 248 | } |
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[489] | 249 | |
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| 250 | for(itRecv=recvRequest.begin();itRecv!=recvRequest.end();itRecv++) |
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[300] | 251 | { |
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[549] | 252 | pendingRequest.erase(*itRecv); |
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| 253 | bufferRequest.erase(*itRecv); |
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[300] | 254 | } |
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| 255 | } |
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[489] | 256 | |
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[1757] | 257 | void CContextServer::getBufferFromClient(size_t timeLine) |
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| 258 | { |
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| 259 | if (!isAttachedModeEnabled()) // one sided desactivated in attached mode |
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| 260 | { |
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| 261 | int rank ; |
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| 262 | char *buffer ; |
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| 263 | size_t count ; |
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| 264 | |
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| 265 | if (itLastTimeLine==lastTimeLine.end()) itLastTimeLine=lastTimeLine.begin() ; |
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| 266 | for(;itLastTimeLine!=lastTimeLine.end();++itLastTimeLine) |
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| 267 | { |
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| 268 | rank=itLastTimeLine->first ; |
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| 269 | if (itLastTimeLine->second < timeLine && pendingRequest.count(rank)==0) |
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| 270 | { |
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| 271 | if (buffers[rank]->getBufferFromClient(timeLine, buffer, count)) |
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| 272 | { |
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| 273 | processRequest(rank, buffer, count); |
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| 274 | break ; |
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| 275 | } |
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| 276 | } |
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| 277 | } |
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| 278 | } |
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| 279 | } |
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| 280 | |
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| 281 | |
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[300] | 282 | void CContextServer::processRequest(int rank, char* buff,int count) |
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| 283 | { |
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[489] | 284 | |
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[549] | 285 | CBufferIn buffer(buff,count); |
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| 286 | char* startBuffer,endBuffer; |
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| 287 | int size, offset; |
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[1757] | 288 | size_t timeLine=0; |
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[549] | 289 | map<size_t,CEventServer*>::iterator it; |
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[489] | 290 | |
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[1757] | 291 | |
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[1225] | 292 | CTimer::get("Process request").resume(); |
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[300] | 293 | while(count>0) |
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| 294 | { |
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[549] | 295 | char* startBuffer=(char*)buffer.ptr(); |
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| 296 | CBufferIn newBuffer(startBuffer,buffer.remain()); |
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| 297 | newBuffer>>size>>timeLine; |
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[300] | 298 | |
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[2130] | 299 | if (timeLine==timelineEventNotifyChangeBufferSize) |
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| 300 | { |
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| 301 | buffers[rank]->notifyBufferResizing() ; |
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| 302 | buffers[rank]->updateCurrentWindows() ; |
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| 303 | } |
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| 304 | else if (timeLine==timelineEventChangeBufferSize) |
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| 305 | { |
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| 306 | size_t newSize ; |
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| 307 | vector<MPI_Aint> winAdress(2) ; |
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| 308 | newBuffer>>newSize>>winAdress[0]>>winAdress[1] ; |
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| 309 | buffers.erase(rank) ; |
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| 310 | buffers.insert(pair<int,CServerBuffer*>(rank,new CServerBuffer(windows, winAdress, rank, newSize))); |
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| 311 | } |
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| 312 | else |
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| 313 | { |
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| 314 | it=events.find(timeLine); |
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| 315 | if (it==events.end()) it=events.insert(pair<int,CEventServer*>(timeLine,new CEventServer(this))).first; |
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| 316 | it->second->push(rank,buffers[rank],startBuffer,size); |
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| 317 | if (timeLine>0) lastTimeLine[rank]=timeLine ; |
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| 318 | } |
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[549] | 319 | buffer.advance(size); |
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| 320 | count=buffer.remain(); |
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[489] | 321 | } |
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[1757] | 322 | |
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[1225] | 323 | CTimer::get("Process request").suspend(); |
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[300] | 324 | } |
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[489] | 325 | |
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[300] | 326 | void CContextServer::processEvents(void) |
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| 327 | { |
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[549] | 328 | map<size_t,CEventServer*>::iterator it; |
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| 329 | CEventServer* event; |
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[1761] | 330 | |
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[1764] | 331 | // if (context->isProcessingEvent()) return ; |
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| 332 | if (isProcessingEvent_) return ; |
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[2130] | 333 | if (isAttachedModeEnabled()) |
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| 334 | if (!CXios::getDaemonsManager()->isScheduledContext(remoteHashId_)) return ; |
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[489] | 335 | |
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[549] | 336 | it=events.find(currentTimeLine); |
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[489] | 337 | if (it!=events.end()) |
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[300] | 338 | { |
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[549] | 339 | event=it->second; |
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[509] | 340 | |
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[300] | 341 | if (event->isFull()) |
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| 342 | { |
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[2123] | 343 | if (!scheduled && !isAttachedModeEnabled()) // Skip event scheduling for attached mode and reception on client side |
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[492] | 344 | { |
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[1764] | 345 | eventScheduler_->registerEvent(currentTimeLine,hashId); |
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[549] | 346 | scheduled=true; |
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[492] | 347 | } |
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[2123] | 348 | else if (isAttachedModeEnabled() || eventScheduler_->queryEvent(currentTimeLine,hashId) ) |
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[492] | 349 | { |
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[2123] | 350 | |
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[2230] | 351 | if (!eventScheduled_) |
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[2123] | 352 | { |
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[2230] | 353 | MPI_Ibarrier(processEventBarrier_,&processEventRequest_) ; |
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| 354 | eventScheduled_=true ; |
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| 355 | return ; |
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| 356 | } |
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| 357 | else |
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| 358 | { |
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| 359 | MPI_Status status ; |
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| 360 | int flag ; |
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| 361 | MPI_Test(&processEventRequest_, &flag, &status) ; |
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| 362 | if (!flag) return ; |
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| 363 | eventScheduled_=false ; |
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| 364 | } |
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[2123] | 365 | |
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[2230] | 366 | if (!isAttachedModeEnabled()) eventScheduler_->popEvent() ; |
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[2123] | 367 | //MPI_Barrier(intraComm) ; |
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[851] | 368 | // When using attached mode, synchronise the processes to avoid that differents event be scheduled by differents processes |
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| 369 | // The best way to properly solve this problem will be to use the event scheduler also in attached mode |
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| 370 | // for now just set up a MPI barrier |
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[1875] | 371 | //ym to be check later |
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| 372 | // if (!eventScheduler_ && CXios::isServer) MPI_Barrier(intraComm) ; |
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[851] | 373 | |
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[1764] | 374 | // context->setProcessingEvent() ; |
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| 375 | isProcessingEvent_=true ; |
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[549] | 376 | CTimer::get("Process events").resume(); |
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[2022] | 377 | info(100)<<"Received Event "<<currentTimeLine<<" of class "<<event->classId<<" of type "<<event->type<<endl ; |
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[549] | 378 | dispatchEvent(*event); |
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| 379 | CTimer::get("Process events").suspend(); |
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[1764] | 380 | isProcessingEvent_=false ; |
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| 381 | // context->unsetProcessingEvent() ; |
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[549] | 382 | pendingEvent=false; |
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| 383 | delete event; |
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| 384 | events.erase(it); |
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| 385 | currentTimeLine++; |
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| 386 | scheduled = false; |
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[2130] | 387 | if (isAttachedModeEnabled()) CXios::getDaemonsManager()->unscheduleContext() ; |
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[492] | 388 | } |
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| 389 | } |
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[1757] | 390 | else getBufferFromClient(currentTimeLine) ; |
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[492] | 391 | } |
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[1757] | 392 | else if (pureOneSided) getBufferFromClient(currentTimeLine) ; // if pure one sided check buffer even if no event recorded at current time line |
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[492] | 393 | } |
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[489] | 394 | |
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[300] | 395 | CContextServer::~CContextServer() |
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| 396 | { |
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[549] | 397 | map<int,CServerBuffer*>::iterator it; |
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[1158] | 398 | for(it=buffers.begin();it!=buffers.end();++it) delete it->second; |
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[489] | 399 | } |
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[300] | 400 | |
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[1757] | 401 | void CContextServer::releaseBuffers() |
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| 402 | { |
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| 403 | map<int,CServerBuffer*>::iterator it; |
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| 404 | bool out ; |
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| 405 | do |
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| 406 | { |
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| 407 | out=true ; |
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| 408 | for(it=buffers.begin();it!=buffers.end();++it) |
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| 409 | { |
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| 410 | // out = out && it->second->freeWindows() ; |
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| 411 | |
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| 412 | } |
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| 413 | } while (! out) ; |
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| 414 | } |
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| 415 | |
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| 416 | void CContextServer::notifyClientsFinalize(void) |
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| 417 | { |
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| 418 | for(auto it=buffers.begin();it!=buffers.end();++it) |
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| 419 | { |
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| 420 | it->second->notifyClientFinalize() ; |
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| 421 | } |
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| 422 | } |
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| 423 | |
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[300] | 424 | void CContextServer::dispatchEvent(CEventServer& event) |
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| 425 | { |
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[549] | 426 | string contextName; |
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| 427 | string buff; |
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| 428 | int MsgSize; |
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| 429 | int rank; |
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| 430 | list<CEventServer::SSubEvent>::iterator it; |
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[1054] | 431 | StdString ctxId = context->getId(); |
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| 432 | CContext::setCurrent(ctxId); |
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[1130] | 433 | StdSize totalBuf = 0; |
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[489] | 434 | |
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[300] | 435 | if (event.classId==CContext::GetType() && event.type==CContext::EVENT_ID_CONTEXT_FINALIZE) |
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| 436 | { |
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[597] | 437 | finished=true; |
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[1194] | 438 | info(20)<<" CContextServer: Receive context <"<<context->getId()<<"> finalize."<<endl; |
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[1757] | 439 | // releaseBuffers() ; |
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| 440 | notifyClientsFinalize() ; |
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[1194] | 441 | context->finalize(); |
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[1757] | 442 | |
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| 443 | /* don't know where release windows |
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| 444 | MPI_Win_free(&windows[0]) ; |
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| 445 | MPI_Win_free(&windows[1]) ; |
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| 446 | */ |
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[511] | 447 | std::map<int, StdSize>::const_iterator itbMap = mapBufferSize_.begin(), |
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[983] | 448 | iteMap = mapBufferSize_.end(), itMap; |
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[511] | 449 | for (itMap = itbMap; itMap != iteMap; ++itMap) |
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| 450 | { |
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[1054] | 451 | rank = itMap->first; |
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[1130] | 452 | report(10)<< " Memory report : Context <"<<ctxId<<"> : server side : memory used for buffer of each connection to client" << endl |
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| 453 | << " +) With client of rank " << rank << " : " << itMap->second << " bytes " << endl; |
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| 454 | totalBuf += itMap->second; |
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[511] | 455 | } |
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[1130] | 456 | report(0)<< " Memory report : Context <"<<ctxId<<"> : server side : total memory used for buffer "<<totalBuf<<" bytes"<<endl; |
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[300] | 457 | } |
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[549] | 458 | else if (event.classId==CContext::GetType()) CContext::dispatchEvent(event); |
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| 459 | else if (event.classId==CContextGroup::GetType()) CContextGroup::dispatchEvent(event); |
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| 460 | else if (event.classId==CCalendarWrapper::GetType()) CCalendarWrapper::dispatchEvent(event); |
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| 461 | else if (event.classId==CDomain::GetType()) CDomain::dispatchEvent(event); |
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| 462 | else if (event.classId==CDomainGroup::GetType()) CDomainGroup::dispatchEvent(event); |
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| 463 | else if (event.classId==CAxis::GetType()) CAxis::dispatchEvent(event); |
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| 464 | else if (event.classId==CAxisGroup::GetType()) CAxisGroup::dispatchEvent(event); |
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[887] | 465 | else if (event.classId==CScalar::GetType()) CScalar::dispatchEvent(event); |
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| 466 | else if (event.classId==CScalarGroup::GetType()) CScalarGroup::dispatchEvent(event); |
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[549] | 467 | else if (event.classId==CGrid::GetType()) CGrid::dispatchEvent(event); |
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| 468 | else if (event.classId==CGridGroup::GetType()) CGridGroup::dispatchEvent(event); |
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| 469 | else if (event.classId==CField::GetType()) CField::dispatchEvent(event); |
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| 470 | else if (event.classId==CFieldGroup::GetType()) CFieldGroup::dispatchEvent(event); |
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| 471 | else if (event.classId==CFile::GetType()) CFile::dispatchEvent(event); |
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| 472 | else if (event.classId==CFileGroup::GetType()) CFileGroup::dispatchEvent(event); |
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| 473 | else if (event.classId==CVariable::GetType()) CVariable::dispatchEvent(event); |
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[300] | 474 | else |
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| 475 | { |
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[549] | 476 | ERROR("void CContextServer::dispatchEvent(CEventServer& event)",<<" Bad event class Id"<<endl); |
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[300] | 477 | } |
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| 478 | } |
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[2230] | 479 | |
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| 480 | bool CContextServer::isCollectiveEvent(CEventServer& event) |
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| 481 | { |
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| 482 | if (event.classId==CField::GetType()) return CField::isCollectiveEvent(event); |
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| 483 | else return true ; |
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| 484 | } |
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[300] | 485 | } |
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