[2343] | 1 | #include "xios_spl.hpp" |
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| 2 | #include "legacy_context_client.hpp" |
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| 3 | #include "context_server.hpp" |
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| 4 | #include "event_client.hpp" |
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| 5 | #include "buffer_out.hpp" |
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| 6 | #include "buffer_client.hpp" |
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| 7 | #include "type.hpp" |
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| 8 | #include "event_client.hpp" |
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| 9 | #include "context.hpp" |
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| 10 | #include "mpi.hpp" |
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| 11 | #include "timer.hpp" |
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| 12 | #include "cxios.hpp" |
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| 13 | #include "server.hpp" |
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| 14 | #include "services.hpp" |
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[2458] | 15 | #include "ressources_manager.hpp" |
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[2343] | 16 | #include <random> |
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| 17 | #include <chrono> |
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| 18 | |
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| 19 | namespace xios |
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| 20 | { |
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[2628] | 21 | extern CLogType logTimers ; |
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| 22 | |
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[2343] | 23 | /*! |
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| 24 | \param [in] parent Pointer to context on client side |
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| 25 | \param [in] intraComm_ communicator of group client |
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| 26 | \param [in] interComm_ communicator of group server |
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[2547] | 27 | \cxtSer [in] cxtSer Pointer to context of server side. (It is only used in case of attached mode --> obsolete). |
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[2343] | 28 | */ |
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| 29 | CLegacyContextClient::CLegacyContextClient(CContext* parent, MPI_Comm intraComm_, MPI_Comm interComm_, CContext* cxtSer) |
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| 30 | : CContextClient(parent, intraComm_, interComm_, cxtSer), |
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| 31 | mapBufferSize_(), maxBufferedEvents(4) |
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| 32 | { |
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| 33 | pureOneSided=CXios::getin<bool>("pure_one_sided",false); // pure one sided communication (for test) |
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[2589] | 34 | xios::MPI_Intercomm_merge(interComm_,false, &interCommMerged_) ; |
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[2592] | 35 | CXios::getMpiGarbageCollector().registerCommunicator(interCommMerged_) ; |
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[2589] | 36 | xios::MPI_Comm_split(intraComm_,clientRank,clientRank, &commSelf_) ; // for windows |
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[2592] | 37 | CXios::getMpiGarbageCollector().registerCommunicator(commSelf_) ; |
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[2547] | 38 | eventScheduler_ = parent->getEventScheduler() ; |
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[2343] | 39 | timeLine = 1; |
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| 40 | } |
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| 41 | |
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[2507] | 42 | CContextClient::ETransport getType(void) {return CContextClient::legacy ;} |
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[2343] | 43 | |
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| 44 | /*! |
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| 45 | \param [in] event Event sent to server |
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| 46 | */ |
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| 47 | void CLegacyContextClient::sendEvent(CEventClient& event) |
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| 48 | { |
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| 49 | list<int> ranks = event.getRanks(); |
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| 50 | |
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| 51 | // ostringstream str ; |
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| 52 | // for(auto& rank : ranks) str<<rank<<" ; " ; |
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| 53 | // info(100)<<"Event "<<timeLine<<" of context "<<context_->getId()<<" for ranks : "<<str.str()<<endl ; |
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| 54 | |
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| 55 | if (CXios::checkEventSync) |
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| 56 | { |
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| 57 | int typeId, classId, typeId_in, classId_in; |
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| 58 | long long timeLine_out; |
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| 59 | long long timeLine_in( timeLine ); |
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| 60 | typeId_in=event.getTypeId() ; |
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| 61 | classId_in=event.getClassId() ; |
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| 62 | // MPI_Allreduce(&timeLine,&timeLine_out, 1, MPI_UINT64_T, MPI_SUM, intraComm) ; // MPI_UINT64_T standardized by MPI 3 |
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| 63 | MPI_Allreduce(&timeLine_in,&timeLine_out, 1, MPI_LONG_LONG_INT, MPI_SUM, intraComm) ; |
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| 64 | MPI_Allreduce(&typeId_in,&typeId, 1, MPI_INT, MPI_SUM, intraComm) ; |
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| 65 | MPI_Allreduce(&classId_in,&classId, 1, MPI_INT, MPI_SUM, intraComm) ; |
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| 66 | if (typeId/clientSize!=event.getTypeId() || classId/clientSize!=event.getClassId() || timeLine_out/clientSize!=timeLine) |
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| 67 | { |
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| 68 | ERROR("void CLegacyContextClient::sendEvent(CEventClient& event)", |
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| 69 | << "Event are not coherent between client for timeline = "<<timeLine); |
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| 70 | } |
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| 71 | |
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| 72 | vector<int> servers(serverSize,0) ; |
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| 73 | auto ranks=event.getRanks() ; |
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| 74 | for(auto& rank : ranks) servers[rank]=1 ; |
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| 75 | MPI_Allreduce(MPI_IN_PLACE, servers.data(), serverSize,MPI_INT,MPI_SUM,intraComm) ; |
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| 76 | ostringstream osstr ; |
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| 77 | for(int i=0;i<serverSize;i++) if (servers[i]==0) osstr<<i<<" , " ; |
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| 78 | if (!osstr.str().empty()) |
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| 79 | { |
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| 80 | ERROR("void CLegacyContextClient::sendEvent(CEventClient& event)", |
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| 81 | <<" Some servers will not receive the message for timeline = "<<timeLine<<endl |
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| 82 | <<"Servers are : "<<osstr.str()) ; |
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| 83 | } |
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| 84 | |
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| 85 | |
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| 86 | } |
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| 87 | |
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| 88 | if (!event.isEmpty()) |
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| 89 | { |
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| 90 | list<int> sizes = event.getSizes(); |
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| 91 | |
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| 92 | // We force the getBuffers call to be non-blocking on classical servers |
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| 93 | list<CBufferOut*> buffList; |
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| 94 | getBuffers(timeLine, ranks, sizes, buffList) ; |
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| 95 | |
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| 96 | event.send(timeLine, sizes, buffList); |
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| 97 | |
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| 98 | //for (auto itRank = ranks.begin(); itRank != ranks.end(); itRank++) buffers[*itRank]->infoBuffer() ; |
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| 99 | |
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| 100 | unlockBuffers(ranks) ; |
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| 101 | checkBuffers(ranks); |
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| 102 | |
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| 103 | } |
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| 104 | |
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[2547] | 105 | synchronize() ; |
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[2343] | 106 | timeLine++; |
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| 107 | } |
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| 108 | |
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| 109 | |
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| 110 | /*! |
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| 111 | * Get buffers for each connection to the servers. This function blocks until there is enough room in the buffers unless |
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| 112 | * it is explicitly requested to be non-blocking. |
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| 113 | * |
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| 114 | * |
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| 115 | * \param [in] timeLine time line of the event which will be sent to servers |
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| 116 | * \param [in] serverList list of rank of connected server |
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| 117 | * \param [in] sizeList size of message corresponding to each connection |
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| 118 | * \param [out] retBuffers list of buffers that can be used to store an event |
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| 119 | * \param [in] nonBlocking whether this function should be non-blocking |
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| 120 | * \return whether the already allocated buffers could be used |
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| 121 | */ |
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[2458] | 122 | void CLegacyContextClient::getBuffers(const size_t timeLine, const list<int>& serverList, const list<int>& sizeList, list<CBufferOut*>& retBuffers) |
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[2343] | 123 | { |
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| 124 | list<int>::const_iterator itServer, itSize; |
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| 125 | list<CClientBuffer*> bufferList; |
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| 126 | map<int,CClientBuffer*>::const_iterator it; |
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| 127 | list<CClientBuffer*>::iterator itBuffer; |
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| 128 | bool areBuffersFree; |
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[2547] | 129 | /* |
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[2343] | 130 | for (itServer = serverList.begin(); itServer != serverList.end(); itServer++) |
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| 131 | { |
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| 132 | it = buffers.find(*itServer); |
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| 133 | if (it == buffers.end()) |
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| 134 | { |
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[2458] | 135 | CTokenManager* tokenManager = CXios::getRessourcesManager()->getTokenManager() ; |
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| 136 | size_t token = tokenManager->getToken() ; |
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[2547] | 137 | while (!tokenManager->checkToken(token)) callGlobalEventLoop() ; |
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[2343] | 138 | newBuffer(*itServer); |
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| 139 | it = buffers.find(*itServer); |
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[2458] | 140 | checkAttachWindows(it->second,it->first) ; |
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[2547] | 141 | tokenManager->updateToken(token) ; |
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[2343] | 142 | } |
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| 143 | bufferList.push_back(it->second); |
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| 144 | } |
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[2547] | 145 | */ |
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| 146 | map<int,MPI_Request> attachList ; |
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| 147 | |
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| 148 | for (itServer = serverList.begin(); itServer != serverList.end(); itServer++) |
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| 149 | { |
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| 150 | it = buffers.find(*itServer); |
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| 151 | if (it == buffers.end()) |
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| 152 | { |
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| 153 | newBuffer(*itServer); |
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| 154 | it = buffers.find(*itServer); |
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| 155 | checkAttachWindows(it->second, it->first, attachList) ; |
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| 156 | } |
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| 157 | bufferList.push_back(it->second); |
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| 158 | } |
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| 159 | |
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| 160 | while(!attachList.empty()) |
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| 161 | { |
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| 162 | auto it = attachList.begin() ; |
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| 163 | while(it!=attachList.end()) |
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| 164 | { |
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| 165 | if (checkAttachWindows(buffers[it->first], it->first, attachList)) it=attachList.erase(it) ; |
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| 166 | else ++it ; |
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| 167 | } |
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[2343] | 168 | |
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[2547] | 169 | yield() ; |
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| 170 | } |
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| 171 | |
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| 172 | |
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[2343] | 173 | double lastTimeBuffersNotFree=0. ; |
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| 174 | double time ; |
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| 175 | bool doUnlockBuffers ; |
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| 176 | CTimer::get("Blocking time").resume(); |
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| 177 | do |
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| 178 | { |
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| 179 | areBuffersFree = true; |
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| 180 | doUnlockBuffers=false ; |
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| 181 | time=MPI_Wtime() ; |
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| 182 | if (time-lastTimeBuffersNotFree > latency_) |
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| 183 | { |
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| 184 | for (itBuffer = bufferList.begin(), itSize = sizeList.begin(); itBuffer != bufferList.end(); itBuffer++, itSize++) |
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| 185 | { |
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| 186 | areBuffersFree &= (*itBuffer)->isBufferFree(*itSize); |
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| 187 | } |
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| 188 | if (!areBuffersFree) |
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| 189 | { |
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| 190 | lastTimeBuffersNotFree = time ; |
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| 191 | doUnlockBuffers=true ; |
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| 192 | } |
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| 193 | } |
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| 194 | else areBuffersFree = false ; |
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| 195 | |
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| 196 | if (!areBuffersFree) |
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| 197 | { |
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| 198 | if (doUnlockBuffers) for (itBuffer = bufferList.begin(); itBuffer != bufferList.end(); itBuffer++) (*itBuffer)->unlockBuffer(); |
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| 199 | checkBuffers(); |
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| 200 | |
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[2547] | 201 | yield() ; |
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[2343] | 202 | } |
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| 203 | |
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[2458] | 204 | } while (!areBuffersFree); |
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[2343] | 205 | CTimer::get("Blocking time").suspend(); |
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| 206 | |
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[2458] | 207 | for (itBuffer = bufferList.begin(), itSize = sizeList.begin(); itBuffer != bufferList.end(); itBuffer++, itSize++) |
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| 208 | retBuffers.push_back((*itBuffer)->getBuffer(timeLine, *itSize)); |
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[2343] | 209 | } |
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| 210 | |
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[2547] | 211 | |
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| 212 | bool CLegacyContextClient::checkAttachWindows(CClientBuffer* buffer, int rank, map<int, MPI_Request>& attachList) |
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| 213 | { |
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| 214 | int dummy; |
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| 215 | bool ret=true; |
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| 216 | |
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| 217 | if (!buffer->isAttachedWindows()) |
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| 218 | { |
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| 219 | // create windows dynamically for one-sided |
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| 220 | /* |
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[2628] | 221 | if (info.isActive(logTimers)) CTimer::get("create Windows").resume() ; |
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[2547] | 222 | MPI_Comm interComm ; |
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| 223 | int tag = 0 ; |
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[2589] | 224 | xios::MPI_Intercomm_create(commSelf_, 0, interCommMerged_, clientSize+rank, tag, &interComm) ; |
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| 225 | xios::MPI_Intercomm_merge(interComm, false, &winComm_[rank]) ; |
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| 226 | xios::MPI_Comm_free(&interComm) ; |
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[2547] | 227 | |
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| 228 | buffer->attachWindows(winComm_[rank]) ; |
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| 229 | CXios::getMpiGarbageCollector().registerCommunicator(winComm_[rank]) ; |
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| 230 | MPI_Barrier(winComm_[rank]) ; |
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| 231 | */ |
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| 232 | if (attachList.count(rank)==0) |
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| 233 | { |
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| 234 | MPI_Irecv(&dummy,0,MPI_INT,clientSize+rank, 21, interCommMerged_, &attachList[rank]) ; |
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| 235 | ret = false ; |
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| 236 | } |
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| 237 | else |
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| 238 | { |
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| 239 | MPI_Status status ; |
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| 240 | int flag ; |
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| 241 | MPI_Test(&attachList[rank],&flag, &status) ; |
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| 242 | if (flag) |
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| 243 | { |
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[2628] | 244 | if (info.isActive(logTimers)) CTimer::get("create Windows").resume() ; |
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[2547] | 245 | MPI_Comm interComm ; |
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| 246 | int tag = 0 ; |
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[2589] | 247 | xios::MPI_Intercomm_create(commSelf_, 0, interCommMerged_, clientSize+rank, tag, &interComm) ; |
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| 248 | xios::MPI_Intercomm_merge(interComm, false, &winComm_[rank]) ; |
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| 249 | xios::MPI_Comm_free(&interComm) ; |
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[2547] | 250 | |
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| 251 | buffer->attachWindows(winComm_[rank]) ; |
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| 252 | CXios::getMpiGarbageCollector().registerCommunicator(winComm_[rank]) ; |
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| 253 | MPI_Barrier(winComm_[rank]) ; |
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| 254 | ret = true ; |
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| 255 | } |
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| 256 | else ret=false ; |
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| 257 | } |
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| 258 | } |
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| 259 | return ret ; |
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| 260 | } |
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| 261 | |
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| 262 | |
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[2343] | 263 | void CLegacyContextClient::eventLoop(void) |
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| 264 | { |
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| 265 | if (!locked_) checkBuffers() ; |
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| 266 | } |
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| 267 | |
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| 268 | void CLegacyContextClient::callGlobalEventLoop(void) |
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| 269 | { |
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| 270 | locked_=true ; |
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[2547] | 271 | context_->yield() ; |
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[2343] | 272 | locked_=false ; |
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| 273 | } |
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[2547] | 274 | |
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| 275 | void CLegacyContextClient::yield(void) |
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| 276 | { |
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| 277 | locked_=true ; |
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| 278 | context_->yield() ; |
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| 279 | locked_=false ; |
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| 280 | } |
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| 281 | |
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| 282 | void CLegacyContextClient::synchronize(void) |
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| 283 | { |
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| 284 | if (context_->getServiceType()!=CServicesManager::CLIENT) |
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| 285 | { |
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| 286 | locked_=true ; |
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| 287 | context_->synchronize() ; |
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| 288 | locked_=false ; |
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| 289 | } |
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| 290 | } |
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[2343] | 291 | /*! |
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| 292 | Make a new buffer for a certain connection to server with specific rank |
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| 293 | \param [in] rank rank of connected server |
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| 294 | */ |
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| 295 | void CLegacyContextClient::newBuffer(int rank) |
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| 296 | { |
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| 297 | if (!mapBufferSize_.count(rank)) |
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| 298 | { |
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| 299 | error(0) << "WARNING: Unexpected request for buffer to communicate with server " << rank << std::endl; |
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| 300 | mapBufferSize_[rank] = CXios::minBufferSize; |
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| 301 | maxEventSizes[rank] = CXios::minBufferSize; |
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| 302 | } |
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[2547] | 303 | bool hasWindows = true ; |
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| 304 | CClientBuffer* buffer = buffers[rank] = new CClientBuffer(interCommMerged_, clientSize+rank, mapBufferSize_[rank], hasWindows); |
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[2343] | 305 | if (isGrowableBuffer_) buffer->setGrowableBuffer(1.2) ; |
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| 306 | else buffer->fixBuffer() ; |
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| 307 | // Notify the server |
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[2547] | 308 | |
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[2343] | 309 | CBufferOut* bufOut = buffer->getBuffer(0, 4*sizeof(MPI_Aint)); |
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| 310 | MPI_Aint sendBuff[4] ; |
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| 311 | sendBuff[0]=hashId_; |
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| 312 | sendBuff[1]=mapBufferSize_[rank]; |
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[2547] | 313 | sendBuff[2]=buffers[rank]->getWinBufferAddress(0); |
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| 314 | sendBuff[3]=buffers[rank]->getWinBufferAddress(1); |
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| 315 | info(100)<<"CLegacyContextClient::newBuffer : rank "<<rank<<" winAdress[0] "<<buffers[rank]->getWinBufferAddress(0)<<" winAdress[1] "<<buffers[rank]->getWinBufferAddress(1)<<endl; |
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| 316 | bufOut->put(sendBuff,4); |
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[2343] | 317 | buffer->checkBuffer(true); |
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| 318 | |
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| 319 | } |
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| 320 | |
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[2458] | 321 | |
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[2547] | 322 | |
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[2343] | 323 | /*! |
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| 324 | Verify state of buffers. Buffer is under pending state if there is no message on it |
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| 325 | \return state of buffers, pending(true), ready(false) |
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| 326 | */ |
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| 327 | bool CLegacyContextClient::checkBuffers(void) |
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| 328 | { |
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| 329 | map<int,CClientBuffer*>::iterator itBuff; |
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| 330 | bool pending = false; |
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| 331 | for (itBuff = buffers.begin(); itBuff != buffers.end(); itBuff++) |
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| 332 | pending |= itBuff->second->checkBuffer(!pureOneSided); |
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| 333 | return pending; |
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| 334 | } |
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| 335 | |
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| 336 | //! Release all buffers |
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| 337 | void CLegacyContextClient::releaseBuffers() |
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| 338 | { |
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| 339 | map<int,CClientBuffer*>::iterator itBuff; |
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| 340 | for (itBuff = buffers.begin(); itBuff != buffers.end(); itBuff++) |
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| 341 | { |
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| 342 | delete itBuff->second; |
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| 343 | } |
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| 344 | buffers.clear(); |
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| 345 | |
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[2547] | 346 | for(auto& it : winComm_) |
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| 347 | { |
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| 348 | int rank = it.first ; |
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| 349 | } |
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[2343] | 350 | } |
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| 351 | |
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| 352 | |
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| 353 | /*! |
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| 354 | Lock the buffers for one sided communications |
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| 355 | \param [in] ranks list rank of server to which client connects to |
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| 356 | */ |
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| 357 | void CLegacyContextClient::lockBuffers(list<int>& ranks) |
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| 358 | { |
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| 359 | list<int>::iterator it; |
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| 360 | for (it = ranks.begin(); it != ranks.end(); it++) buffers[*it]->lockBuffer(); |
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| 361 | } |
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| 362 | |
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| 363 | /*! |
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| 364 | Unlock the buffers for one sided communications |
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| 365 | \param [in] ranks list rank of server to which client connects to |
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| 366 | */ |
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| 367 | void CLegacyContextClient::unlockBuffers(list<int>& ranks) |
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| 368 | { |
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| 369 | list<int>::iterator it; |
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| 370 | for (it = ranks.begin(); it != ranks.end(); it++) buffers[*it]->unlockBuffer(); |
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| 371 | } |
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| 372 | |
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| 373 | /*! |
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| 374 | Verify state of buffers corresponding to a connection |
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| 375 | \param [in] ranks list rank of server to which client connects to |
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| 376 | \return state of buffers, pending(true), ready(false) |
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| 377 | */ |
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| 378 | bool CLegacyContextClient::checkBuffers(list<int>& ranks) |
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| 379 | { |
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| 380 | list<int>::iterator it; |
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| 381 | bool pending = false; |
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| 382 | for (it = ranks.begin(); it != ranks.end(); it++) pending |= buffers[*it]->checkBuffer(!pureOneSided); |
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| 383 | return pending; |
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| 384 | } |
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| 385 | |
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| 386 | /*! |
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| 387 | * Set the buffer size for each connection. Warning: This function is collective. |
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| 388 | * |
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| 389 | * \param [in] mapSize maps the rank of the connected servers to the size of the correspoinding buffer |
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| 390 | * \param [in] maxEventSize maps the rank of the connected servers to the size of the biggest event |
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| 391 | */ |
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| 392 | void CLegacyContextClient::setBufferSize(const std::map<int,StdSize>& mapSize) |
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| 393 | { |
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| 394 | setFixedBuffer() ; |
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| 395 | for(auto& it : mapSize) |
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| 396 | { |
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| 397 | size_t size=std::max(CXios::minBufferSize*1.0,std::min(it.second*CXios::bufferSizeFactor*1.01,CXios::maxBufferSize*1.0)) ; |
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| 398 | mapBufferSize_[it.first]=size ; |
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| 399 | if (buffers.count(it.first)>0) buffers[it.first]->fixBufferSize(size); |
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| 400 | } |
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| 401 | } |
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| 402 | |
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| 403 | /*! |
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| 404 | * Finalize context client and do some reports. Function is non-blocking. |
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| 405 | */ |
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| 406 | void CLegacyContextClient::finalize(void) |
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| 407 | { |
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| 408 | map<int,CClientBuffer*>::iterator itBuff; |
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| 409 | std::list<int>::iterator ItServerLeader; |
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| 410 | |
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| 411 | bool stop = false; |
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| 412 | |
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| 413 | int* nbServerConnectionLocal = new int[serverSize] ; |
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| 414 | int* nbServerConnectionGlobal = new int[serverSize] ; |
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| 415 | for(int i=0;i<serverSize;++i) nbServerConnectionLocal[i]=0 ; |
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| 416 | for (itBuff = buffers.begin(); itBuff != buffers.end(); itBuff++) nbServerConnectionLocal[itBuff->first]=1 ; |
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| 417 | for (ItServerLeader = ranksServerLeader.begin(); ItServerLeader != ranksServerLeader.end(); ItServerLeader++) nbServerConnectionLocal[*ItServerLeader]=1 ; |
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| 418 | |
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| 419 | MPI_Allreduce(nbServerConnectionLocal, nbServerConnectionGlobal, serverSize, MPI_INT, MPI_SUM, intraComm); |
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| 420 | |
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| 421 | CEventClient event(CContext::GetType(), CContext::EVENT_ID_CONTEXT_FINALIZE); |
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| 422 | CMessage msg; |
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| 423 | |
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| 424 | for (int i=0;i<serverSize;++i) if (nbServerConnectionLocal[i]==1) event.push(i, nbServerConnectionGlobal[i], msg) ; |
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| 425 | sendEvent(event); |
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| 426 | |
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| 427 | delete[] nbServerConnectionLocal ; |
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| 428 | delete[] nbServerConnectionGlobal ; |
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| 429 | |
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| 430 | |
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| 431 | CTimer::get("Blocking time").resume(); |
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| 432 | checkBuffers(); |
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| 433 | CTimer::get("Blocking time").suspend(); |
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| 434 | |
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| 435 | std::map<int,StdSize>::const_iterator itbMap = mapBufferSize_.begin(), |
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| 436 | iteMap = mapBufferSize_.end(), itMap; |
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| 437 | |
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| 438 | StdSize totalBuf = 0; |
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| 439 | for (itMap = itbMap; itMap != iteMap; ++itMap) |
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| 440 | { |
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| 441 | report(10) << " Memory report : Context <" << context_->getId() << "> : client side : memory used for buffer of each connection to server" << endl |
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| 442 | << " +) To server with rank " << itMap->first << " : " << itMap->second << " bytes " << endl; |
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| 443 | totalBuf += itMap->second; |
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| 444 | } |
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| 445 | report(0) << " Memory report : Context <" << context_->getId() << "> : client side : total memory used for buffer " << totalBuf << " bytes" << endl; |
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| 446 | |
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| 447 | } |
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| 448 | |
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| 449 | |
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| 450 | /*! |
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| 451 | */ |
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| 452 | bool CLegacyContextClient::havePendingRequests(void) |
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| 453 | { |
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| 454 | bool pending = false; |
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| 455 | map<int,CClientBuffer*>::iterator itBuff; |
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| 456 | for (itBuff = buffers.begin(); itBuff != buffers.end(); itBuff++) |
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| 457 | pending |= itBuff->second->hasPendingRequest(); |
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| 458 | return pending; |
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| 459 | } |
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| 460 | |
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| 461 | bool CLegacyContextClient::havePendingRequests(list<int>& ranks) |
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| 462 | { |
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| 463 | list<int>::iterator it; |
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| 464 | bool pending = false; |
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| 465 | for (it = ranks.begin(); it != ranks.end(); it++) pending |= buffers[*it]->hasPendingRequest(); |
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| 466 | return pending; |
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| 467 | } |
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| 468 | |
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| 469 | bool CLegacyContextClient::isNotifiedFinalized(void) |
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| 470 | { |
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| 471 | bool finalized = true; |
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| 472 | map<int,CClientBuffer*>::iterator itBuff; |
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| 473 | for (itBuff = buffers.begin(); itBuff != buffers.end(); itBuff++) |
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| 474 | finalized &= itBuff->second->isNotifiedFinalized(); |
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| 475 | return finalized; |
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| 476 | } |
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| 477 | |
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| 478 | } |
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