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