[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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[2458] | 96 | isAttachedWindows_=true ; |
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[2259] | 97 | windows_=windows ; |
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| 98 | if (windows_[0]==MPI_WIN_NULL && windows_[1]==MPI_WIN_NULL) hasWindows=false ; |
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| 99 | else hasWindows=true ; |
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| 100 | |
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| 101 | if (hasWindows) |
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| 102 | { |
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| 103 | MPI_Aint buffSize=bufferSize+headerSize_ ; |
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| 104 | MPI_Win_attach(windows_[0], bufferHeader[0], buffSize) ; |
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| 105 | MPI_Win_attach(windows_[1], bufferHeader[1], buffSize) ; |
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| 106 | |
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| 107 | MPI_Group group ; |
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| 108 | int groupSize,groupRank ; |
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| 109 | MPI_Win_get_group(windows_[0], &group) ; |
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| 110 | MPI_Group_size(group, &groupSize) ; |
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| 111 | MPI_Group_rank(group, &groupRank) ; |
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| 112 | if (groupRank!=clientRank_) ERROR("CClientBuffer::CClientBuffer",<< " ClientRank != groupRank "<<clientRank_<<" "<<groupRank); |
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| 113 | |
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| 114 | MPI_Win_get_group(windows_[1], &group) ; |
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| 115 | MPI_Group_size(group, &groupSize) ; |
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| 116 | MPI_Group_rank(group, &groupRank) ; |
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| 117 | if (groupRank!=clientRank_) ERROR("CClientBuffer::CClientBuffer",<< " ClientRank != groupRank "<<clientRank_<<" "<<groupRank); |
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| 118 | |
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| 119 | MPI_Win_lock(MPI_LOCK_EXCLUSIVE, clientRank_, 0, windows_[0]) ; |
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| 120 | MPI_Win_lock(MPI_LOCK_EXCLUSIVE, clientRank_, 0, windows_[1]) ; |
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| 121 | |
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| 122 | MPI_Win_unlock(clientRank_, windows_[1]) ; |
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| 123 | MPI_Win_unlock(clientRank_, windows_[0]) ; |
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| 124 | } |
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| 125 | |
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[1757] | 126 | } |
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| 127 | |
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[2259] | 128 | |
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[300] | 129 | CClientBuffer::~CClientBuffer() |
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| 130 | { |
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[1757] | 131 | //freeWindows() ; |
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| 132 | if (hasWindows) |
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| 133 | { |
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| 134 | MPI_Win_detach(windows_[0],bufferHeader[0]); |
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| 135 | MPI_Win_detach(windows_[1],bufferHeader[1]); |
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| 136 | MPI_Free_mem(bufferHeader[0]) ; |
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| 137 | MPI_Free_mem(bufferHeader[1]) ; |
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| 138 | } |
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| 139 | delete retBuffer; |
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[300] | 140 | } |
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[509] | 141 | |
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[1757] | 142 | void CClientBuffer::lockBuffer(void) |
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| 143 | { |
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[2246] | 144 | CTimer::get("lock buffer").resume(); |
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[1757] | 145 | if (hasWindows) |
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| 146 | { |
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[2324] | 147 | if (winState[current]==true) ERROR("CClientBuffer::lockBuffer(void)",<<"Try lo lock client buffer but winState said it is already locked") ; |
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[1757] | 148 | MPI_Win_lock(MPI_LOCK_EXCLUSIVE,clientRank_, 0, windows_[current]) ; |
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| 149 | winState[current]=true ; |
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| 150 | } |
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[2246] | 151 | CTimer::get("lock buffer").suspend(); |
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[1757] | 152 | } |
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| 153 | |
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| 154 | void CClientBuffer::unlockBuffer(void) |
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| 155 | { |
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[2246] | 156 | CTimer::get("unlock buffer").resume(); |
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[1757] | 157 | if (hasWindows) |
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| 158 | { |
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[2324] | 159 | if (winState[current]==false) ERROR("CClientBuffer::lockBuffer(void)",<<"Try lo unlock client buffer but winState said it is already unlocked") ; |
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[1757] | 160 | MPI_Win_unlock(clientRank_, windows_[current]) ; |
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| 161 | winState[current]=false ; |
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| 162 | } |
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[2246] | 163 | CTimer::get("unlock buffer").suspend(); |
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[1757] | 164 | } |
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| 165 | |
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[1227] | 166 | StdSize CClientBuffer::remain(void) |
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[300] | 167 | { |
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[732] | 168 | return bufferSize - count; |
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[300] | 169 | } |
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[509] | 170 | |
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[1227] | 171 | bool CClientBuffer::isBufferFree(StdSize size) |
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[300] | 172 | { |
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[2458] | 173 | if (!isAttachedWindows_) return false; |
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| 174 | |
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[1757] | 175 | lockBuffer(); |
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[2130] | 176 | count=*bufferCount[current] ; |
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| 177 | |
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| 178 | if (resizingBufferStep_ > 0 ) return false ; |
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| 179 | |
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[732] | 180 | if (size > bufferSize) |
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[2130] | 181 | { |
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| 182 | resizingBufferStep_=1 ; |
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[2246] | 183 | *firstTimeLine[current]=0 ; |
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[2130] | 184 | newBufferSize_=size ; |
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| 185 | return false ; |
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| 186 | } |
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[509] | 187 | |
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[1201] | 188 | if (size > maxEventSize) |
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| 189 | { |
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| 190 | maxEventSize = size; |
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| 191 | |
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| 192 | if (size > estimatedMaxEventSize) |
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| 193 | error(0) << "WARNING: Unexpected event of size " << size << " for server " << serverRank |
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| 194 | << " (estimated max event size = " << estimatedMaxEventSize << ")" << std::endl; |
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| 195 | |
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| 196 | if (size > maxRequestSize) maxRequestSize = size; |
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| 197 | } |
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[2130] | 198 | |
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| 199 | if (size > remain()) |
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| 200 | { |
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| 201 | if (isGrowableBuffer_) |
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| 202 | { |
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| 203 | resizingBufferStep_ = 1 ; |
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[2246] | 204 | *firstTimeLine[current]=0 ; |
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[2130] | 205 | newBufferSize_ = (count+size)*growFactor_ ; |
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| 206 | } |
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| 207 | return false ; |
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| 208 | } |
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| 209 | else return true ; |
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[300] | 210 | } |
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[509] | 211 | |
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| 212 | |
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[1757] | 213 | CBufferOut* CClientBuffer::getBuffer(size_t timeLine, StdSize size) |
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[300] | 214 | { |
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[732] | 215 | if (size <= remain()) |
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[300] | 216 | { |
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[732] | 217 | retBuffer->realloc(buffer[current] + count, size); |
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| 218 | count += size; |
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[1757] | 219 | if (*firstTimeLine[current]==0) *firstTimeLine[current]=timeLine ; |
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| 220 | *bufferCount[current]=count ; |
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[732] | 221 | return retBuffer; |
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[300] | 222 | } |
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| 223 | else |
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| 224 | { |
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[1227] | 225 | ERROR("CBufferOut* CClientBuffer::getBuffer(StdSize size)", |
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[732] | 226 | << "Not enough space in buffer, this should not have happened..."); |
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| 227 | return NULL; |
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[300] | 228 | } |
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[509] | 229 | } |
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| 230 | |
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[1757] | 231 | void CClientBuffer::infoBuffer(void) |
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[300] | 232 | { |
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[1757] | 233 | |
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| 234 | char checksum=0 ; |
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| 235 | for(size_t i=0;i<*bufferCount[current];i++) checksum=checksum+buffer[current][i] ; |
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| 236 | |
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| 237 | char checksumFirst=0 ; |
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| 238 | for(size_t i=5; i<10 && i<*bufferCount[current] ;i++) checksumFirst=checksumFirst+buffer[current][i] ; |
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| 239 | |
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| 240 | char checksumLast=0 ; |
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| 241 | for(size_t i=(*bufferCount[current]<10)?0:*bufferCount[current]-10; i<*bufferCount[current] ; i++) checksumLast=checksumLast+buffer[current][i] ; |
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| 242 | |
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| 243 | info(45)<<"CClientBuffer::infoBuffer "<<" clientRank_ "<<clientRank_<<" serverRank "<<serverRank <<" current "<<current<<" WinState "<<winState[current] |
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| 244 | <<" firstTimeLine "<<*firstTimeLine[current]<<" count "<<*bufferCount[current]<<" checksum "<<(int)checksum<<" " |
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| 245 | <<(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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| 246 | <<(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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| 247 | |
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| 248 | } |
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| 249 | |
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| 250 | bool CClientBuffer::checkBuffer(bool send) |
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| 251 | { |
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[1639] | 252 | MPI_Status status; |
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[732] | 253 | int flag; |
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[2260] | 254 | MPI_Iprobe(MPI_ANY_SOURCE, MPI_ANY_TAG, MPI_COMM_WORLD, &flag, MPI_STATUS_IGNORE); |
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| 255 | |
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[300] | 256 | if (pending) |
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| 257 | { |
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[732] | 258 | traceOff(); |
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[1639] | 259 | MPI_Test(&request, &flag, &status); |
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[732] | 260 | traceOn(); |
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| 261 | if (flag == true) pending = false; |
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[300] | 262 | } |
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| 263 | |
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| 264 | if (!pending) |
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| 265 | { |
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[2130] | 266 | if (!send && resizingBufferStep_==0 ) return false ; |
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| 267 | |
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[732] | 268 | if (count > 0) |
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[300] | 269 | { |
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[2246] | 270 | double time=MPI_Wtime() ; |
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| 271 | if (time - lastCheckedWithNothing_ > latency_) |
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[1757] | 272 | { |
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[2246] | 273 | lockBuffer() ; |
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| 274 | if (*bufferCount[current] > 0) |
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| 275 | { |
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| 276 | MPI_Issend(buffer[current], count, MPI_CHAR, serverRank, 20, interComm, &request); |
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| 277 | if (resizingBufferStep_==4) resizingBufferStep_=0 ; |
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| 278 | pending = true; |
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| 279 | *firstTimeLine[current]=0 ; |
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| 280 | *bufferCount[current]=0 ; |
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[1757] | 281 | |
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[2246] | 282 | unlockBuffer() ; |
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[1757] | 283 | |
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[2246] | 284 | if (current == 1) current = 0; |
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| 285 | else current = 1; |
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| 286 | count = 0; |
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| 287 | } |
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| 288 | else |
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| 289 | { |
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| 290 | unlockBuffer() ; |
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| 291 | lastCheckedWithNothing_ = time ; |
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| 292 | } |
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[1757] | 293 | } |
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[300] | 294 | } |
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[2130] | 295 | else |
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| 296 | { |
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| 297 | if (resizingBufferStep_==1) resizeBufferNotify() ; |
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[2246] | 298 | else if (resizingBufferStep_==2) isNotifiedChangeBufferSize() ; |
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| 299 | else if (resizingBufferStep_==3) resizeBuffer(newBufferSize_) ; |
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[2130] | 300 | } |
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[300] | 301 | } |
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[732] | 302 | |
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| 303 | return pending; |
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[300] | 304 | } |
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[509] | 305 | |
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[2130] | 306 | void CClientBuffer::resizeBufferNotify(void) |
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| 307 | { |
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| 308 | // notify server of changing buffers size |
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| 309 | lockBuffer() ; |
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| 310 | int size=sizeof(int)+sizeof(size_t) ; |
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| 311 | CBufferOut* bufOut = this->getBuffer(timelineEventNotifyChangeBufferSize, size); |
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| 312 | bufOut->put(size); |
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| 313 | bufOut->put(timelineEventNotifyChangeBufferSize); |
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| 314 | resizingBufferStep_ = 2 ; |
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| 315 | unlockBuffer() ; |
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| 316 | } |
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| 317 | |
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| 318 | void CClientBuffer::resizeBuffer(size_t newSize) |
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| 319 | { |
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[2246] | 320 | |
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[2130] | 321 | if (hasWindows) |
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| 322 | { |
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| 323 | MPI_Win_detach(windows_[0], bufferHeader[0]) ; |
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| 324 | MPI_Win_detach(windows_[1], bufferHeader[1]) ; |
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| 325 | } |
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| 326 | MPI_Free_mem(bufferHeader[0]) ; |
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| 327 | MPI_Free_mem(bufferHeader[1]) ; |
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| 328 | |
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| 329 | bufferSize=newSize ; |
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[2246] | 330 | MPI_Alloc_mem(bufferSize+headerSize_, MPI_INFO_NULL, &bufferHeader[0]) ; |
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| 331 | MPI_Alloc_mem(bufferSize+headerSize_, MPI_INFO_NULL, &bufferHeader[1]) ; |
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| 332 | buffer[0] = bufferHeader[0]+headerSize_ ; |
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| 333 | buffer[1] = bufferHeader[1]+headerSize_ ; |
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| 334 | firstTimeLine[0]=(size_t*)bufferHeader[0] + timeLineOffset_; |
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| 335 | firstTimeLine[1]=(size_t*)bufferHeader[1] + timeLineOffset_; |
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| 336 | bufferCount[0]=(size_t*)bufferHeader[0] + countOffset_ ; |
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| 337 | bufferCount[1]=(size_t*)bufferHeader[1] + countOffset_ ; |
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| 338 | control[0]=(size_t*)bufferHeader[0] + controlOffset_ ; // control=0 => nothing ; control=1 => changeBufferSize |
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| 339 | control[1]=(size_t*)bufferHeader[1] + controlOffset_ ; |
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| 340 | notify[0]=(size_t*)bufferHeader[0] + notifyOffset_ ; |
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| 341 | notify[1]=(size_t*)bufferHeader[1] + notifyOffset_ ; |
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[2130] | 342 | |
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| 343 | *firstTimeLine[0]=0 ; |
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| 344 | *firstTimeLine[1]=0 ; |
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| 345 | *bufferCount[0]=0 ; |
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| 346 | *bufferCount[1]=0 ; |
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| 347 | *control[0]=0 ; |
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| 348 | *control[1]=0 ; |
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[2246] | 349 | *notify[0] = notifyNothing_ ; |
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| 350 | *notify[1] = notifyNothing_ ; |
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[2130] | 351 | winState[0]=false ; |
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| 352 | winState[1]=false ; |
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| 353 | current=0 ; |
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| 354 | |
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| 355 | if (hasWindows) |
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| 356 | { |
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| 357 | |
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[2246] | 358 | MPI_Win_attach(windows_[0], bufferHeader[0], bufferSize+headerSize_) ; |
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| 359 | MPI_Win_attach(windows_[1], bufferHeader[1], bufferSize+headerSize_) ; |
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[2130] | 360 | |
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| 361 | MPI_Win_lock(MPI_LOCK_EXCLUSIVE, clientRank_, 0, windows_[0]) ; |
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| 362 | MPI_Win_lock(MPI_LOCK_EXCLUSIVE, clientRank_, 0, windows_[1]) ; |
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| 363 | |
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| 364 | MPI_Win_unlock(clientRank_, windows_[1]) ; |
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| 365 | MPI_Win_unlock(clientRank_, windows_[0]) ; |
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| 366 | } |
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| 367 | |
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| 368 | lockBuffer() ; |
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| 369 | |
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[2221] | 370 | int size=sizeof(int)+2*sizeof(size_t)+2*sizeof(MPI_Aint) ; |
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[2130] | 371 | CBufferOut* bufOut = this->getBuffer(timelineEventChangeBufferSize, size); |
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| 372 | bufOut->put(size); |
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| 373 | bufOut->put(timelineEventChangeBufferSize); |
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| 374 | bufOut->put(newBufferSize_); |
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| 375 | bufOut->put(this->getWinAddress(0)); |
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| 376 | bufOut->put(this->getWinAddress(1)); |
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| 377 | |
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[2246] | 378 | resizingBufferStep_=4; |
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[2130] | 379 | unlockBuffer() ; |
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[2246] | 380 | 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] | 381 | } |
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| 382 | |
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[300] | 383 | bool CClientBuffer::hasPendingRequest(void) |
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| 384 | { |
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[1757] | 385 | |
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| 386 | lockBuffer() ; |
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| 387 | count=*bufferCount[current] ; |
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| 388 | unlockBuffer() ; |
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| 389 | |
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[732] | 390 | return (pending || count > 0); |
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[300] | 391 | } |
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[1757] | 392 | |
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[2246] | 393 | bool CClientBuffer::isNotifiedChangeBufferSize(void) |
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| 394 | { |
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| 395 | |
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| 396 | bool ret ; |
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| 397 | lockBuffer() ; |
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| 398 | ret=*notify[current] == notifyResizeBuffer_ ? true : false ; |
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[2298] | 399 | if (ret || !hasWindows) |
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[2246] | 400 | { |
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| 401 | *notify[current] = notifyNothing_ ; |
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| 402 | resizingBufferStep_=3; |
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| 403 | } |
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| 404 | unlockBuffer() ; |
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| 405 | |
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| 406 | return ret; |
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| 407 | } |
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| 408 | |
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[1757] | 409 | bool CClientBuffer::isNotifiedFinalized(void) |
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| 410 | { |
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[2258] | 411 | if (!isFinalized_) |
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| 412 | { |
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| 413 | double time=MPI_Wtime() ; |
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| 414 | // if (time - lastCheckedNotify_ > latency_) |
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| 415 | { |
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| 416 | int flag ; |
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| 417 | MPI_Iprobe(MPI_ANY_SOURCE, MPI_ANY_TAG, MPI_COMM_WORLD, &flag, MPI_STATUS_IGNORE); |
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| 418 | lockBuffer() ; |
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| 419 | isFinalized_=*notify[current] == notifyFinalize_ ? true : false ; |
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| 420 | unlockBuffer() ; |
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| 421 | lastCheckedNotify_=time ; |
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| 422 | } |
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| 423 | } |
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| 424 | return isFinalized_ ; |
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[1757] | 425 | } |
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| 426 | |
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[509] | 427 | } |
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