[591] | 1 | #include "xios_spl.hpp" |
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[300] | 2 | #include "exception.hpp" |
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[380] | 3 | #include "log.hpp" |
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[300] | 4 | #include "buffer_out.hpp" |
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| 5 | #include "buffer_client.hpp" |
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[317] | 6 | #include "cxios.hpp" |
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[382] | 7 | #include "mpi.hpp" |
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[347] | 8 | #include "tracer.hpp" |
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[2130] | 9 | #include "timeline_events.hpp" |
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[2246] | 10 | #include "timer.hpp" |
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[300] | 11 | |
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[335] | 12 | namespace xios |
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[300] | 13 | { |
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[732] | 14 | size_t CClientBuffer::maxRequestSize = 0; |
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[509] | 15 | |
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[2259] | 16 | CClientBuffer::CClientBuffer(MPI_Comm interComm, int serverRank, StdSize bufferSize, StdSize estimatedMaxEventSize) |
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[917] | 17 | : interComm(interComm) |
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[2258] | 18 | , clientRank_(0) |
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[917] | 19 | , serverRank(serverRank) |
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| 20 | , bufferSize(bufferSize) |
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[1201] | 21 | , estimatedMaxEventSize(estimatedMaxEventSize) |
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| 22 | , maxEventSize(0) |
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[917] | 23 | , current(0) |
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| 24 | , count(0) |
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| 25 | , pending(false) |
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[1757] | 26 | , hasWindows(false) |
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[300] | 27 | { |
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[2259] | 28 | /* |
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| 29 | if (windows[0]==MPI_WIN_NULL && windows[1]==MPI_WIN_NULL) hasWindows=false ; |
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| 30 | else hasWindows=true ; |
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| 31 | */ |
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[1757] | 32 | |
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[2246] | 33 | MPI_Alloc_mem(bufferSize+headerSize_, MPI_INFO_NULL, &bufferHeader[0]) ; |
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| 34 | MPI_Alloc_mem(bufferSize+headerSize_, MPI_INFO_NULL, &bufferHeader[1]) ; |
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| 35 | buffer[0] = bufferHeader[0]+headerSize_ ; |
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| 36 | buffer[1] = bufferHeader[1]+headerSize_ ; |
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| 37 | firstTimeLine[0]=(size_t*)bufferHeader[0] + timeLineOffset_ ; |
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| 38 | firstTimeLine[1]=(size_t*)bufferHeader[1] + timeLineOffset_ ; |
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| 39 | bufferCount[0]=(size_t*)bufferHeader[0] + countOffset_ ; |
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| 40 | bufferCount[1]=(size_t*)bufferHeader[1] + countOffset_ ; |
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| 41 | control[0]=(size_t*)bufferHeader[0] + controlOffset_ ; |
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| 42 | control[1]=(size_t*)bufferHeader[1] + controlOffset_ ; |
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| 43 | notify[0]=(size_t*)bufferHeader[0] + notifyOffset_ ; |
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| 44 | notify[1]=(size_t*)bufferHeader[1] + notifyOffset_ ; |
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[1757] | 45 | |
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| 46 | *firstTimeLine[0]=0 ; |
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| 47 | *firstTimeLine[1]=0 ; |
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| 48 | *bufferCount[0]=0 ; |
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| 49 | *bufferCount[1]=0 ; |
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| 50 | *control[0]=0 ; |
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| 51 | *control[1]=0 ; |
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[2246] | 52 | *notify[0]=notifyNothing_ ; |
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| 53 | *notify[1]=notifyNothing_ ; |
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[1757] | 54 | winState[0]=false ; |
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| 55 | winState[1]=false ; |
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| 56 | |
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| 57 | |
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| 58 | if (hasWindows) |
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| 59 | { |
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| 60 | |
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[2246] | 61 | MPI_Aint buffSize=bufferSize+headerSize_ ; |
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[2221] | 62 | MPI_Win_attach(windows_[0], bufferHeader[0], buffSize) ; |
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| 63 | MPI_Win_attach(windows_[1], bufferHeader[1], buffSize) ; |
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[1757] | 64 | |
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| 65 | MPI_Group group ; |
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| 66 | int groupSize,groupRank ; |
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| 67 | MPI_Win_get_group(windows_[0], &group) ; |
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| 68 | MPI_Group_size(group, &groupSize) ; |
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| 69 | MPI_Group_rank(group, &groupRank) ; |
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| 70 | if (groupRank!=clientRank_) ERROR("CClientBuffer::CClientBuffer",<< " ClientRank != groupRank "<<clientRank_<<" "<<groupRank); |
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| 71 | |
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| 72 | MPI_Win_get_group(windows_[1], &group) ; |
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| 73 | MPI_Group_size(group, &groupSize) ; |
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| 74 | MPI_Group_rank(group, &groupRank) ; |
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| 75 | if (groupRank!=clientRank_) ERROR("CClientBuffer::CClientBuffer",<< " ClientRank != groupRank "<<clientRank_<<" "<<groupRank); |
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| 76 | |
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| 77 | MPI_Win_lock(MPI_LOCK_EXCLUSIVE, clientRank_, 0, windows_[0]) ; |
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| 78 | MPI_Win_lock(MPI_LOCK_EXCLUSIVE, clientRank_, 0, windows_[1]) ; |
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| 79 | |
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| 80 | MPI_Win_unlock(clientRank_, windows_[1]) ; |
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| 81 | MPI_Win_unlock(clientRank_, windows_[0]) ; |
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| 82 | } |
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[732] | 83 | retBuffer = new CBufferOut(buffer[current], bufferSize); |
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[1757] | 84 | info(10) << "CClientBuffer: allocated 2 x " << bufferSize << " bytes for server " << serverRank << endl; |
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[300] | 85 | } |
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[509] | 86 | |
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[1757] | 87 | MPI_Aint CClientBuffer::getWinAddress(int i) |
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| 88 | { |
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[2259] | 89 | MPI_Aint address ; |
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| 90 | MPI_Get_address(bufferHeader[i], &address) ; |
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| 91 | return address ; |
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| 92 | } |
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[1757] | 93 | |
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[2259] | 94 | void CClientBuffer::attachWindows(vector<MPI_Win>& windows) |
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| 95 | { |
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| 96 | windows_=windows ; |
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| 97 | if (windows_[0]==MPI_WIN_NULL && windows_[1]==MPI_WIN_NULL) hasWindows=false ; |
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| 98 | else hasWindows=true ; |
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| 99 | |
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| 100 | if (hasWindows) |
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| 101 | { |
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| 102 | MPI_Aint buffSize=bufferSize+headerSize_ ; |
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| 103 | MPI_Win_attach(windows_[0], bufferHeader[0], buffSize) ; |
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| 104 | MPI_Win_attach(windows_[1], bufferHeader[1], buffSize) ; |
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| 105 | |
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| 106 | MPI_Group group ; |
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| 107 | int groupSize,groupRank ; |
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| 108 | MPI_Win_get_group(windows_[0], &group) ; |
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| 109 | MPI_Group_size(group, &groupSize) ; |
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| 110 | MPI_Group_rank(group, &groupRank) ; |
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| 111 | if (groupRank!=clientRank_) ERROR("CClientBuffer::CClientBuffer",<< " ClientRank != groupRank "<<clientRank_<<" "<<groupRank); |
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| 112 | |
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| 113 | MPI_Win_get_group(windows_[1], &group) ; |
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| 114 | MPI_Group_size(group, &groupSize) ; |
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| 115 | MPI_Group_rank(group, &groupRank) ; |
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| 116 | if (groupRank!=clientRank_) ERROR("CClientBuffer::CClientBuffer",<< " ClientRank != groupRank "<<clientRank_<<" "<<groupRank); |
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| 117 | |
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| 118 | MPI_Win_lock(MPI_LOCK_EXCLUSIVE, clientRank_, 0, windows_[0]) ; |
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| 119 | MPI_Win_lock(MPI_LOCK_EXCLUSIVE, clientRank_, 0, windows_[1]) ; |
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| 120 | |
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| 121 | MPI_Win_unlock(clientRank_, windows_[1]) ; |
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| 122 | MPI_Win_unlock(clientRank_, windows_[0]) ; |
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| 123 | } |
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| 124 | |
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[1757] | 125 | } |
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| 126 | |
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[2259] | 127 | |
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[300] | 128 | CClientBuffer::~CClientBuffer() |
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| 129 | { |
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[1757] | 130 | //freeWindows() ; |
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| 131 | if (hasWindows) |
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| 132 | { |
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| 133 | MPI_Win_detach(windows_[0],bufferHeader[0]); |
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| 134 | MPI_Win_detach(windows_[1],bufferHeader[1]); |
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| 135 | MPI_Free_mem(bufferHeader[0]) ; |
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| 136 | MPI_Free_mem(bufferHeader[1]) ; |
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| 137 | } |
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| 138 | delete retBuffer; |
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[300] | 139 | } |
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[509] | 140 | |
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[1757] | 141 | void CClientBuffer::lockBuffer(void) |
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| 142 | { |
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[2246] | 143 | CTimer::get("lock buffer").resume(); |
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[1757] | 144 | if (hasWindows) |
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| 145 | { |
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| 146 | MPI_Win_lock(MPI_LOCK_EXCLUSIVE,clientRank_, 0, windows_[current]) ; |
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| 147 | winState[current]=true ; |
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| 148 | } |
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[2246] | 149 | CTimer::get("lock buffer").suspend(); |
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[1757] | 150 | } |
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| 151 | |
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| 152 | void CClientBuffer::unlockBuffer(void) |
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| 153 | { |
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[2246] | 154 | CTimer::get("unlock buffer").resume(); |
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[1757] | 155 | if (hasWindows) |
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| 156 | { |
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| 157 | MPI_Win_unlock(clientRank_, windows_[current]) ; |
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| 158 | winState[current]=false ; |
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| 159 | } |
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[2246] | 160 | CTimer::get("unlock buffer").suspend(); |
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[1757] | 161 | } |
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| 162 | |
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[1227] | 163 | StdSize CClientBuffer::remain(void) |
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[300] | 164 | { |
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[732] | 165 | return bufferSize - count; |
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[300] | 166 | } |
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[509] | 167 | |
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[1227] | 168 | bool CClientBuffer::isBufferFree(StdSize size) |
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[300] | 169 | { |
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[1757] | 170 | |
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| 171 | lockBuffer(); |
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[2130] | 172 | count=*bufferCount[current] ; |
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| 173 | |
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| 174 | if (resizingBufferStep_ > 0 ) return false ; |
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| 175 | |
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[732] | 176 | if (size > bufferSize) |
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[2130] | 177 | { |
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| 178 | resizingBufferStep_=1 ; |
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[2246] | 179 | *firstTimeLine[current]=0 ; |
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[2130] | 180 | newBufferSize_=size ; |
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| 181 | return false ; |
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| 182 | } |
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[509] | 183 | |
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[1201] | 184 | if (size > maxEventSize) |
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| 185 | { |
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| 186 | maxEventSize = size; |
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| 187 | |
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| 188 | if (size > estimatedMaxEventSize) |
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| 189 | error(0) << "WARNING: Unexpected event of size " << size << " for server " << serverRank |
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| 190 | << " (estimated max event size = " << estimatedMaxEventSize << ")" << std::endl; |
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| 191 | |
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| 192 | if (size > maxRequestSize) maxRequestSize = size; |
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| 193 | } |
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[2130] | 194 | |
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| 195 | if (size > remain()) |
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| 196 | { |
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| 197 | if (isGrowableBuffer_) |
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| 198 | { |
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| 199 | resizingBufferStep_ = 1 ; |
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[2246] | 200 | *firstTimeLine[current]=0 ; |
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[2130] | 201 | newBufferSize_ = (count+size)*growFactor_ ; |
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| 202 | } |
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| 203 | return false ; |
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| 204 | } |
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| 205 | else return true ; |
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[300] | 206 | } |
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[509] | 207 | |
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| 208 | |
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[1757] | 209 | CBufferOut* CClientBuffer::getBuffer(size_t timeLine, StdSize size) |
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[300] | 210 | { |
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[732] | 211 | if (size <= remain()) |
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[300] | 212 | { |
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[732] | 213 | retBuffer->realloc(buffer[current] + count, size); |
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| 214 | count += size; |
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[1757] | 215 | if (*firstTimeLine[current]==0) *firstTimeLine[current]=timeLine ; |
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| 216 | *bufferCount[current]=count ; |
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[732] | 217 | return retBuffer; |
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[300] | 218 | } |
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| 219 | else |
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| 220 | { |
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[1227] | 221 | ERROR("CBufferOut* CClientBuffer::getBuffer(StdSize size)", |
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[732] | 222 | << "Not enough space in buffer, this should not have happened..."); |
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| 223 | return NULL; |
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[300] | 224 | } |
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[509] | 225 | } |
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| 226 | |
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[1757] | 227 | void CClientBuffer::infoBuffer(void) |
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[300] | 228 | { |
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[1757] | 229 | |
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| 230 | char checksum=0 ; |
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| 231 | for(size_t i=0;i<*bufferCount[current];i++) checksum=checksum+buffer[current][i] ; |
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| 232 | |
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| 233 | char checksumFirst=0 ; |
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| 234 | for(size_t i=5; i<10 && i<*bufferCount[current] ;i++) checksumFirst=checksumFirst+buffer[current][i] ; |
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| 235 | |
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| 236 | char checksumLast=0 ; |
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| 237 | for(size_t i=(*bufferCount[current]<10)?0:*bufferCount[current]-10; i<*bufferCount[current] ; i++) checksumLast=checksumLast+buffer[current][i] ; |
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| 238 | |
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| 239 | info(45)<<"CClientBuffer::infoBuffer "<<" clientRank_ "<<clientRank_<<" serverRank "<<serverRank <<" current "<<current<<" WinState "<<winState[current] |
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| 240 | <<" firstTimeLine "<<*firstTimeLine[current]<<" count "<<*bufferCount[current]<<" checksum "<<(int)checksum<<" " |
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| 241 | <<(int)buffer[current][0]<<" "<<(int)buffer[current][1]<<" "<<(int)buffer[current][2]<<" "<<(int)buffer[current][3]<<" "<<(int)buffer[current][4]<<" "<<(int)buffer[current][5]<<" " |
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| 242 | <<(int)buffer[current][6]<<" "<<(int)buffer[current][7]<<" "<<(int)buffer[current][8]<<" "<<(int)buffer[current][9]<<" "<<(int)buffer[current][10]<<" "<<(int)buffer[current][11]<<endl ; |
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| 243 | |
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| 244 | } |
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| 245 | |
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| 246 | bool CClientBuffer::checkBuffer(bool send) |
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| 247 | { |
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[1639] | 248 | MPI_Status status; |
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[732] | 249 | int flag; |
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[2260] | 250 | MPI_Iprobe(MPI_ANY_SOURCE, MPI_ANY_TAG, MPI_COMM_WORLD, &flag, MPI_STATUS_IGNORE); |
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| 251 | |
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[300] | 252 | if (pending) |
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| 253 | { |
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[732] | 254 | traceOff(); |
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[1639] | 255 | MPI_Test(&request, &flag, &status); |
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[732] | 256 | traceOn(); |
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| 257 | if (flag == true) pending = false; |
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[300] | 258 | } |
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| 259 | |
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| 260 | if (!pending) |
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| 261 | { |
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[2130] | 262 | if (!send && resizingBufferStep_==0 ) return false ; |
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| 263 | |
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[732] | 264 | if (count > 0) |
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[300] | 265 | { |
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[2246] | 266 | double time=MPI_Wtime() ; |
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| 267 | if (time - lastCheckedWithNothing_ > latency_) |
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[1757] | 268 | { |
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[2246] | 269 | lockBuffer() ; |
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| 270 | if (*bufferCount[current] > 0) |
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| 271 | { |
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| 272 | MPI_Issend(buffer[current], count, MPI_CHAR, serverRank, 20, interComm, &request); |
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| 273 | if (resizingBufferStep_==4) resizingBufferStep_=0 ; |
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| 274 | pending = true; |
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| 275 | *firstTimeLine[current]=0 ; |
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| 276 | *bufferCount[current]=0 ; |
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[1757] | 277 | |
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[2246] | 278 | unlockBuffer() ; |
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[1757] | 279 | |
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[2246] | 280 | if (current == 1) current = 0; |
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| 281 | else current = 1; |
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| 282 | count = 0; |
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| 283 | } |
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| 284 | else |
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| 285 | { |
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| 286 | unlockBuffer() ; |
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| 287 | lastCheckedWithNothing_ = time ; |
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| 288 | } |
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[1757] | 289 | } |
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[300] | 290 | } |
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[2130] | 291 | else |
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| 292 | { |
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| 293 | if (resizingBufferStep_==1) resizeBufferNotify() ; |
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[2246] | 294 | else if (resizingBufferStep_==2) isNotifiedChangeBufferSize() ; |
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| 295 | else if (resizingBufferStep_==3) resizeBuffer(newBufferSize_) ; |
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[2130] | 296 | } |
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[300] | 297 | } |
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[732] | 298 | |
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| 299 | return pending; |
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[300] | 300 | } |
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[509] | 301 | |
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[2130] | 302 | void CClientBuffer::resizeBufferNotify(void) |
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| 303 | { |
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| 304 | // notify server of changing buffers size |
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| 305 | lockBuffer() ; |
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| 306 | int size=sizeof(int)+sizeof(size_t) ; |
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| 307 | CBufferOut* bufOut = this->getBuffer(timelineEventNotifyChangeBufferSize, size); |
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| 308 | bufOut->put(size); |
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| 309 | bufOut->put(timelineEventNotifyChangeBufferSize); |
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| 310 | resizingBufferStep_ = 2 ; |
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| 311 | unlockBuffer() ; |
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| 312 | } |
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| 313 | |
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| 314 | void CClientBuffer::resizeBuffer(size_t newSize) |
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| 315 | { |
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[2246] | 316 | |
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[2130] | 317 | if (hasWindows) |
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| 318 | { |
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| 319 | MPI_Win_detach(windows_[0], bufferHeader[0]) ; |
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| 320 | MPI_Win_detach(windows_[1], bufferHeader[1]) ; |
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| 321 | } |
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| 322 | MPI_Free_mem(bufferHeader[0]) ; |
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| 323 | MPI_Free_mem(bufferHeader[1]) ; |
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| 324 | |
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| 325 | bufferSize=newSize ; |
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[2246] | 326 | MPI_Alloc_mem(bufferSize+headerSize_, MPI_INFO_NULL, &bufferHeader[0]) ; |
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| 327 | MPI_Alloc_mem(bufferSize+headerSize_, MPI_INFO_NULL, &bufferHeader[1]) ; |
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| 328 | buffer[0] = bufferHeader[0]+headerSize_ ; |
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| 329 | buffer[1] = bufferHeader[1]+headerSize_ ; |
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| 330 | firstTimeLine[0]=(size_t*)bufferHeader[0] + timeLineOffset_; |
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| 331 | firstTimeLine[1]=(size_t*)bufferHeader[1] + timeLineOffset_; |
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| 332 | bufferCount[0]=(size_t*)bufferHeader[0] + countOffset_ ; |
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| 333 | bufferCount[1]=(size_t*)bufferHeader[1] + countOffset_ ; |
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| 334 | control[0]=(size_t*)bufferHeader[0] + controlOffset_ ; // control=0 => nothing ; control=1 => changeBufferSize |
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| 335 | control[1]=(size_t*)bufferHeader[1] + controlOffset_ ; |
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| 336 | notify[0]=(size_t*)bufferHeader[0] + notifyOffset_ ; |
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| 337 | notify[1]=(size_t*)bufferHeader[1] + notifyOffset_ ; |
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[2130] | 338 | |
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| 339 | *firstTimeLine[0]=0 ; |
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| 340 | *firstTimeLine[1]=0 ; |
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| 341 | *bufferCount[0]=0 ; |
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| 342 | *bufferCount[1]=0 ; |
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| 343 | *control[0]=0 ; |
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| 344 | *control[1]=0 ; |
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[2246] | 345 | *notify[0] = notifyNothing_ ; |
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| 346 | *notify[1] = notifyNothing_ ; |
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[2130] | 347 | winState[0]=false ; |
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| 348 | winState[1]=false ; |
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| 349 | current=0 ; |
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| 350 | |
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| 351 | if (hasWindows) |
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| 352 | { |
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| 353 | |
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[2246] | 354 | MPI_Win_attach(windows_[0], bufferHeader[0], bufferSize+headerSize_) ; |
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| 355 | MPI_Win_attach(windows_[1], bufferHeader[1], bufferSize+headerSize_) ; |
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[2130] | 356 | |
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| 357 | MPI_Win_lock(MPI_LOCK_EXCLUSIVE, clientRank_, 0, windows_[0]) ; |
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| 358 | MPI_Win_lock(MPI_LOCK_EXCLUSIVE, clientRank_, 0, windows_[1]) ; |
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| 359 | |
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| 360 | MPI_Win_unlock(clientRank_, windows_[1]) ; |
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| 361 | MPI_Win_unlock(clientRank_, windows_[0]) ; |
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| 362 | } |
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| 363 | |
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| 364 | lockBuffer() ; |
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| 365 | |
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[2221] | 366 | int size=sizeof(int)+2*sizeof(size_t)+2*sizeof(MPI_Aint) ; |
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[2130] | 367 | CBufferOut* bufOut = this->getBuffer(timelineEventChangeBufferSize, size); |
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| 368 | bufOut->put(size); |
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| 369 | bufOut->put(timelineEventChangeBufferSize); |
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| 370 | bufOut->put(newBufferSize_); |
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| 371 | bufOut->put(this->getWinAddress(0)); |
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| 372 | bufOut->put(this->getWinAddress(1)); |
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| 373 | |
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[2246] | 374 | resizingBufferStep_=4; |
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[2130] | 375 | unlockBuffer() ; |
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[2246] | 376 | info(100)<<"CClientBuffer::resizeBuffer(size_t newSize) : resizing buffer of server "<<serverRank<<" ; new size : "<<newSize<<" ; winAdress[0] "<<this->getWinAddress(0)<<" winAdress[1] "<<this->getWinAddress(1)<<endl; |
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[2130] | 377 | } |
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| 378 | |
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[300] | 379 | bool CClientBuffer::hasPendingRequest(void) |
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| 380 | { |
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[1757] | 381 | |
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| 382 | lockBuffer() ; |
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| 383 | count=*bufferCount[current] ; |
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| 384 | unlockBuffer() ; |
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| 385 | |
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[732] | 386 | return (pending || count > 0); |
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[300] | 387 | } |
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[1757] | 388 | |
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[2246] | 389 | bool CClientBuffer::isNotifiedChangeBufferSize(void) |
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| 390 | { |
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| 391 | |
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| 392 | bool ret ; |
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| 393 | lockBuffer() ; |
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| 394 | ret=*notify[current] == notifyResizeBuffer_ ? true : false ; |
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[2298] | 395 | if (ret || !hasWindows) |
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[2246] | 396 | { |
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| 397 | *notify[current] = notifyNothing_ ; |
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| 398 | resizingBufferStep_=3; |
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| 399 | } |
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| 400 | unlockBuffer() ; |
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| 401 | |
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| 402 | return ret; |
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| 403 | } |
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| 404 | |
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[1757] | 405 | bool CClientBuffer::isNotifiedFinalized(void) |
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| 406 | { |
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[2258] | 407 | if (!isFinalized_) |
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| 408 | { |
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| 409 | double time=MPI_Wtime() ; |
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| 410 | // if (time - lastCheckedNotify_ > latency_) |
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| 411 | { |
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| 412 | int flag ; |
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| 413 | MPI_Iprobe(MPI_ANY_SOURCE, MPI_ANY_TAG, MPI_COMM_WORLD, &flag, MPI_STATUS_IGNORE); |
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| 414 | lockBuffer() ; |
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| 415 | isFinalized_=*notify[current] == notifyFinalize_ ? true : false ; |
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| 416 | unlockBuffer() ; |
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| 417 | lastCheckedNotify_=time ; |
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| 418 | } |
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| 419 | } |
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| 420 | return isFinalized_ ; |
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[1757] | 421 | } |
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| 422 | |
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[509] | 423 | } |
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