[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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[300] | 10 | |
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[335] | 11 | namespace xios |
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[300] | 12 | { |
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[732] | 13 | size_t CClientBuffer::maxRequestSize = 0; |
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[509] | 14 | |
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[1757] | 15 | CClientBuffer::CClientBuffer(MPI_Comm interComm, vector<MPI_Win>& windows, int clientRank, int serverRank, StdSize bufferSize, StdSize estimatedMaxEventSize) |
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[917] | 16 | : interComm(interComm) |
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[1757] | 17 | , clientRank_(clientRank) |
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[917] | 18 | , serverRank(serverRank) |
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| 19 | , bufferSize(bufferSize) |
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[1201] | 20 | , estimatedMaxEventSize(estimatedMaxEventSize) |
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| 21 | , maxEventSize(0) |
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[917] | 22 | , current(0) |
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| 23 | , count(0) |
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| 24 | , pending(false) |
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[1757] | 25 | , hasWindows(false) |
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| 26 | , windows_(windows) |
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[300] | 27 | { |
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[1757] | 28 | if (windows[0]==MPI_WIN_NULL && windows[1]==MPI_WIN_NULL) hasWindows=false ; |
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| 29 | else hasWindows=true ; |
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| 30 | |
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| 31 | MPI_Alloc_mem(bufferSize+headerSize, MPI_INFO_NULL, &bufferHeader[0]) ; |
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| 32 | MPI_Alloc_mem(bufferSize+headerSize, MPI_INFO_NULL, &bufferHeader[1]) ; |
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| 33 | buffer[0] = bufferHeader[0]+headerSize ; |
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| 34 | buffer[1] = bufferHeader[1]+headerSize ; |
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| 35 | firstTimeLine[0]=(size_t*)bufferHeader[0] ; |
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| 36 | firstTimeLine[1]=(size_t*)bufferHeader[1] ; |
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| 37 | bufferCount[0]=(size_t*)bufferHeader[0] +1 ; |
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| 38 | bufferCount[1]=(size_t*)bufferHeader[1] +1 ; |
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| 39 | control[0]=(size_t*)bufferHeader[0] +2 ; |
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| 40 | control[1]=(size_t*)bufferHeader[1] +2 ; |
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| 41 | finalize[0]=(size_t*)bufferHeader[0] +3 ; |
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| 42 | finalize[1]=(size_t*)bufferHeader[1] +3 ; |
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| 43 | |
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| 44 | *firstTimeLine[0]=0 ; |
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| 45 | *firstTimeLine[1]=0 ; |
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| 46 | *bufferCount[0]=0 ; |
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| 47 | *bufferCount[1]=0 ; |
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| 48 | *control[0]=0 ; |
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| 49 | *control[1]=0 ; |
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| 50 | *finalize[0]=0 ; |
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| 51 | *finalize[1]=0 ; |
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| 52 | winState[0]=false ; |
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| 53 | winState[1]=false ; |
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| 54 | |
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| 55 | |
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| 56 | if (hasWindows) |
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| 57 | { |
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| 58 | |
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[2221] | 59 | MPI_Aint buffSize=bufferSize+headerSize ; |
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| 60 | MPI_Win_attach(windows_[0], bufferHeader[0], buffSize) ; |
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| 61 | MPI_Win_attach(windows_[1], bufferHeader[1], buffSize) ; |
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[1757] | 62 | |
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| 63 | MPI_Group group ; |
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| 64 | int groupSize,groupRank ; |
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| 65 | MPI_Win_get_group(windows_[0], &group) ; |
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| 66 | MPI_Group_size(group, &groupSize) ; |
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| 67 | MPI_Group_rank(group, &groupRank) ; |
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| 68 | if (groupRank!=clientRank_) ERROR("CClientBuffer::CClientBuffer",<< " ClientRank != groupRank "<<clientRank_<<" "<<groupRank); |
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| 69 | |
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| 70 | MPI_Win_get_group(windows_[1], &group) ; |
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| 71 | MPI_Group_size(group, &groupSize) ; |
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| 72 | MPI_Group_rank(group, &groupRank) ; |
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| 73 | if (groupRank!=clientRank_) ERROR("CClientBuffer::CClientBuffer",<< " ClientRank != groupRank "<<clientRank_<<" "<<groupRank); |
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| 74 | |
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| 75 | MPI_Win_lock(MPI_LOCK_EXCLUSIVE, clientRank_, 0, windows_[0]) ; |
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| 76 | MPI_Win_lock(MPI_LOCK_EXCLUSIVE, clientRank_, 0, windows_[1]) ; |
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| 77 | |
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| 78 | MPI_Win_unlock(clientRank_, windows_[1]) ; |
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| 79 | MPI_Win_unlock(clientRank_, windows_[0]) ; |
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| 80 | } |
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[732] | 81 | retBuffer = new CBufferOut(buffer[current], bufferSize); |
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[1757] | 82 | info(10) << "CClientBuffer: allocated 2 x " << bufferSize << " bytes for server " << serverRank << endl; |
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[300] | 83 | } |
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[509] | 84 | |
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[1757] | 85 | MPI_Aint CClientBuffer::getWinAddress(int i) |
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| 86 | { |
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| 87 | MPI_Aint address ; |
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| 88 | |
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| 89 | if (hasWindows) MPI_Get_address(bufferHeader[i], &address) ; |
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| 90 | else address=0 ; |
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| 91 | |
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| 92 | return address ; |
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| 93 | } |
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| 94 | |
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[300] | 95 | CClientBuffer::~CClientBuffer() |
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| 96 | { |
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[1757] | 97 | //freeWindows() ; |
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| 98 | if (hasWindows) |
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| 99 | { |
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| 100 | MPI_Win_detach(windows_[0],bufferHeader[0]); |
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| 101 | MPI_Win_detach(windows_[1],bufferHeader[1]); |
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| 102 | MPI_Free_mem(bufferHeader[0]) ; |
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| 103 | MPI_Free_mem(bufferHeader[1]) ; |
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| 104 | } |
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| 105 | delete retBuffer; |
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[300] | 106 | } |
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[509] | 107 | |
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[1757] | 108 | /* void CClientBuffer::createWindows(MPI_Comm oneSidedComm) |
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| 109 | { |
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| 110 | MPI_Barrier(oneSidedComm) ; |
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| 111 | MPI_Win_create(bufferHeader[0], bufferSize+headerSize, 1, MPI_INFO_NULL, oneSidedComm, &(windows[0])) ; |
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| 112 | MPI_Win_create(bufferHeader[1], bufferSize+headerSize, 1, MPI_INFO_NULL, oneSidedComm, &(windows[1])) ; |
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| 113 | |
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| 114 | MPI_Win_lock(MPI_LOCK_EXCLUSIVE, 0, 0, windows[0]) ; |
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| 115 | *firstTimeLine[0]=0 ; |
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| 116 | *bufferCount[0]=0 ; |
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| 117 | *control[0]=0 ; |
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| 118 | MPI_Win_unlock(0, windows[0]) ; |
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| 119 | |
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| 120 | MPI_Win_lock(MPI_LOCK_EXCLUSIVE, 0, 0, windows[1]) ; |
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| 121 | *firstTimeLine[1]=0 ; |
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| 122 | *bufferCount[1]=0 ; |
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| 123 | *control[1]=0 ; |
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| 124 | MPI_Win_unlock(0, windows[1]) ; |
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| 125 | winState[0]=false ; |
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| 126 | winState[1]=false ; |
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| 127 | MPI_Barrier(oneSidedComm) ; |
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| 128 | hasWindows=true ; |
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| 129 | } |
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| 130 | */ |
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| 131 | |
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| 132 | /* |
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| 133 | void CClientBuffer::freeWindows() |
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| 134 | { |
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| 135 | if (hasWindows) |
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| 136 | { |
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| 137 | MPI_Win_lock(MPI_LOCK_EXCLUSIVE, 0, 0, windows_[0]) ; |
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| 138 | MPI_Win_lock(MPI_LOCK_EXCLUSIVE, 0, 0, windows_[1]) ; |
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| 139 | *control[0]=2 ; |
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| 140 | *control[1]=2 ; |
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| 141 | MPI_Win_unlock(0, windows_[1]) ; |
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| 142 | MPI_Win_unlock(0, windows_[0]) ; |
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| 143 | |
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| 144 | MPI_Win_free(&windows_[0]) ; |
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| 145 | MPI_Win_free(&windows_[1]) ; |
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| 146 | hasWindows=false ; |
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| 147 | } |
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| 148 | } |
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| 149 | */ |
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| 150 | void CClientBuffer::lockBuffer(void) |
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| 151 | { |
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| 152 | if (hasWindows) |
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| 153 | { |
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| 154 | // MPI_Win_lock(MPI_LOCK_EXCLUSIVE, clientRank_, 0, windows_[current]) ; |
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| 155 | long long int lock=1 ; |
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| 156 | long long int zero=0, one=1 ; |
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| 157 | |
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| 158 | MPI_Win_lock(MPI_LOCK_EXCLUSIVE,clientRank_, 0, windows_[current]) ; |
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| 159 | |
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| 160 | while(lock!=0) |
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| 161 | { |
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| 162 | MPI_Compare_and_swap(&one, &zero, &lock, MPI_LONG_LONG_INT, clientRank_, MPI_Aint_add(getWinAddress(current),2*sizeof(size_t)), |
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| 163 | windows_[current]) ; |
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| 164 | MPI_Win_flush(clientRank_, windows_[current]) ; |
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| 165 | } |
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| 166 | |
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| 167 | // info(100)<<"Buffer locked "<<&windows_<<" "<<current<<endl ; |
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| 168 | winState[current]=true ; |
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| 169 | } |
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| 170 | } |
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| 171 | |
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| 172 | void CClientBuffer::unlockBuffer(void) |
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| 173 | { |
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| 174 | if (hasWindows) |
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| 175 | { |
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| 176 | long long int lock=1 ; |
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| 177 | long long int zero=0, one=1 ; |
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| 178 | |
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| 179 | MPI_Compare_and_swap(&zero, &one, &lock, MPI_LONG_LONG_INT, clientRank_, MPI_Aint_add(getWinAddress(current),2*sizeof(size_t)), |
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| 180 | windows_[current]) ; |
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| 181 | MPI_Win_unlock(clientRank_, windows_[current]) ; |
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| 182 | |
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| 183 | // info(100)<<"Buffer unlocked "<<&windows_<<" "<<current<<endl ; |
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| 184 | winState[current]=false ; |
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| 185 | } |
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| 186 | } |
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| 187 | |
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[1227] | 188 | StdSize CClientBuffer::remain(void) |
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[300] | 189 | { |
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[732] | 190 | return bufferSize - count; |
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[300] | 191 | } |
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[509] | 192 | |
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[1227] | 193 | bool CClientBuffer::isBufferFree(StdSize size) |
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[300] | 194 | { |
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[1757] | 195 | // bool loop=true ; |
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| 196 | // while (loop) |
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| 197 | // { |
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| 198 | // lockBuffer(); |
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| 199 | // if (*control[current]==0) loop=false ; // attemp to read from server ? |
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| 200 | // else unlockBuffer() ; |
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| 201 | // } |
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| 202 | |
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| 203 | lockBuffer(); |
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[2130] | 204 | count=*bufferCount[current] ; |
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| 205 | |
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| 206 | if (resizingBufferStep_ > 0 ) return false ; |
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| 207 | |
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[732] | 208 | if (size > bufferSize) |
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[2130] | 209 | { |
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| 210 | // ERROR("bool CClientBuffer::isBufferFree(StdSize size)", |
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| 211 | // << "The requested size (" << size << " bytes) is too big to fit the buffer (" << bufferSize << " bytes), please increase the client buffer size." << endl); |
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| 212 | resizingBufferStep_=1 ; |
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| 213 | newBufferSize_=size ; |
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| 214 | return false ; |
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| 215 | } |
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[509] | 216 | |
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[1201] | 217 | if (size > maxEventSize) |
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| 218 | { |
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| 219 | maxEventSize = size; |
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| 220 | |
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| 221 | if (size > estimatedMaxEventSize) |
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| 222 | error(0) << "WARNING: Unexpected event of size " << size << " for server " << serverRank |
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| 223 | << " (estimated max event size = " << estimatedMaxEventSize << ")" << std::endl; |
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| 224 | |
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| 225 | if (size > maxRequestSize) maxRequestSize = size; |
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| 226 | } |
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[2130] | 227 | |
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| 228 | if (size > remain()) |
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| 229 | { |
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| 230 | if (isGrowableBuffer_) |
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| 231 | { |
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| 232 | resizingBufferStep_ = 1 ; |
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| 233 | newBufferSize_ = (count+size)*growFactor_ ; |
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| 234 | } |
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| 235 | return false ; |
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| 236 | } |
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| 237 | else return true ; |
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[300] | 238 | } |
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[509] | 239 | |
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| 240 | |
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[1757] | 241 | CBufferOut* CClientBuffer::getBuffer(size_t timeLine, StdSize size) |
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[300] | 242 | { |
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[732] | 243 | if (size <= remain()) |
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[300] | 244 | { |
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[732] | 245 | retBuffer->realloc(buffer[current] + count, size); |
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| 246 | count += size; |
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[1757] | 247 | if (*firstTimeLine[current]==0) *firstTimeLine[current]=timeLine ; |
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| 248 | *bufferCount[current]=count ; |
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| 249 | /* info(50)<<"CClientBuffer::getBuffer "<<" clientRank_ "<<clientRank_<<" serverRank "<<serverRank <<" current "<<current |
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| 250 | <<" size "<<size<<" timeLine "<< timeLine <<" firstTimeLine "<<*firstTimeLine[current]<<" count "<<*bufferCount[current]<<endl ; |
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| 251 | if (!winState[current]) info(40)<<"CClientBuffer::getBuffer "<<" Windows Not Locked... "<<" clientRank_ "<<clientRank_<<" serverRank "<<serverRank <<" current "<<current |
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| 252 | <<" size "<<size<<" timeLine "<< timeLine <<" firstTimeLine "<<*firstTimeLine[current]<<" count "<<*bufferCount[current]<<endl ;*/ |
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[732] | 253 | return retBuffer; |
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[300] | 254 | } |
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| 255 | else |
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| 256 | { |
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[1227] | 257 | ERROR("CBufferOut* CClientBuffer::getBuffer(StdSize size)", |
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[732] | 258 | << "Not enough space in buffer, this should not have happened..."); |
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| 259 | return NULL; |
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[300] | 260 | } |
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[509] | 261 | } |
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| 262 | |
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[1757] | 263 | void CClientBuffer::infoBuffer(void) |
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[300] | 264 | { |
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[1757] | 265 | |
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| 266 | char checksum=0 ; |
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| 267 | for(size_t i=0;i<*bufferCount[current];i++) checksum=checksum+buffer[current][i] ; |
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| 268 | |
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| 269 | char checksumFirst=0 ; |
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| 270 | for(size_t i=5; i<10 && i<*bufferCount[current] ;i++) checksumFirst=checksumFirst+buffer[current][i] ; |
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| 271 | |
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| 272 | char checksumLast=0 ; |
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| 273 | for(size_t i=(*bufferCount[current]<10)?0:*bufferCount[current]-10; i<*bufferCount[current] ; i++) checksumLast=checksumLast+buffer[current][i] ; |
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| 274 | |
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| 275 | info(45)<<"CClientBuffer::infoBuffer "<<" clientRank_ "<<clientRank_<<" serverRank "<<serverRank <<" current "<<current<<" WinState "<<winState[current] |
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| 276 | <<" firstTimeLine "<<*firstTimeLine[current]<<" count "<<*bufferCount[current]<<" checksum "<<(int)checksum<<" " |
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| 277 | <<(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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| 278 | <<(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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| 279 | |
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| 280 | } |
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| 281 | |
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| 282 | bool CClientBuffer::checkBuffer(bool send) |
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| 283 | { |
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[1639] | 284 | MPI_Status status; |
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[732] | 285 | int flag; |
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[509] | 286 | |
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[300] | 287 | if (pending) |
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| 288 | { |
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[732] | 289 | traceOff(); |
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[1639] | 290 | MPI_Test(&request, &flag, &status); |
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[732] | 291 | traceOn(); |
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| 292 | if (flag == true) pending = false; |
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[300] | 293 | } |
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| 294 | |
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| 295 | if (!pending) |
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| 296 | { |
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[2130] | 297 | if (!send && resizingBufferStep_==0 ) return false ; |
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| 298 | |
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[732] | 299 | if (count > 0) |
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[300] | 300 | { |
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[1757] | 301 | lockBuffer() ; |
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| 302 | // if (*control[current]==0 && bufferCount[current] > 0) |
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| 303 | if (*bufferCount[current] > 0) |
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| 304 | { |
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| 305 | MPI_Issend(buffer[current], count, MPI_CHAR, serverRank, 20, interComm, &request); |
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[2130] | 306 | if (resizingBufferStep_==3) resizingBufferStep_=0 ; |
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[1757] | 307 | pending = true; |
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| 308 | // *control[current]=0 ; |
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| 309 | *firstTimeLine[current]=0 ; |
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| 310 | *bufferCount[current]=0 ; |
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| 311 | |
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| 312 | unlockBuffer() ; |
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| 313 | |
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| 314 | if (current == 1) current = 0; |
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| 315 | else current = 1; |
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| 316 | count = 0; |
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| 317 | } |
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[2130] | 318 | else |
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| 319 | { |
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| 320 | unlockBuffer() ; |
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| 321 | } |
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[300] | 322 | } |
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[2130] | 323 | else |
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| 324 | { |
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| 325 | if (resizingBufferStep_==2) resizeBuffer(newBufferSize_) ; |
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| 326 | if (resizingBufferStep_==1) resizeBufferNotify() ; |
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| 327 | } |
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[300] | 328 | } |
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[732] | 329 | |
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| 330 | return pending; |
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[300] | 331 | } |
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[509] | 332 | |
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[2130] | 333 | void CClientBuffer::resizeBufferNotify(void) |
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| 334 | { |
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| 335 | // notify server of changing buffers size |
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| 336 | lockBuffer() ; |
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| 337 | int size=sizeof(int)+sizeof(size_t) ; |
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| 338 | CBufferOut* bufOut = this->getBuffer(timelineEventNotifyChangeBufferSize, size); |
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| 339 | bufOut->put(size); |
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| 340 | bufOut->put(timelineEventNotifyChangeBufferSize); |
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| 341 | resizingBufferStep_ = 2 ; |
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| 342 | unlockBuffer() ; |
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| 343 | } |
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| 344 | |
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| 345 | void CClientBuffer::resizeBuffer(size_t newSize) |
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| 346 | { |
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| 347 | if (hasWindows) |
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| 348 | { |
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| 349 | MPI_Win_detach(windows_[0], bufferHeader[0]) ; |
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| 350 | MPI_Win_detach(windows_[1], bufferHeader[1]) ; |
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| 351 | } |
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| 352 | MPI_Free_mem(bufferHeader[0]) ; |
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| 353 | MPI_Free_mem(bufferHeader[1]) ; |
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| 354 | |
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| 355 | bufferSize=newSize ; |
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| 356 | MPI_Alloc_mem(bufferSize+headerSize, MPI_INFO_NULL, &bufferHeader[0]) ; |
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| 357 | MPI_Alloc_mem(bufferSize+headerSize, MPI_INFO_NULL, &bufferHeader[1]) ; |
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| 358 | buffer[0] = bufferHeader[0]+headerSize ; |
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| 359 | buffer[1] = bufferHeader[1]+headerSize ; |
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| 360 | firstTimeLine[0]=(size_t*)bufferHeader[0] ; |
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| 361 | firstTimeLine[1]=(size_t*)bufferHeader[1] ; |
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| 362 | bufferCount[0]=(size_t*)bufferHeader[0] +1 ; |
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| 363 | bufferCount[1]=(size_t*)bufferHeader[1] +1 ; |
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| 364 | control[0]=(size_t*)bufferHeader[0] +2 ; |
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| 365 | control[1]=(size_t*)bufferHeader[1] +2 ; |
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| 366 | finalize[0]=(size_t*)bufferHeader[0] +3 ; |
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| 367 | finalize[1]=(size_t*)bufferHeader[1] +3 ; |
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| 368 | |
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| 369 | *firstTimeLine[0]=0 ; |
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| 370 | *firstTimeLine[1]=0 ; |
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| 371 | *bufferCount[0]=0 ; |
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| 372 | *bufferCount[1]=0 ; |
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| 373 | *control[0]=0 ; |
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| 374 | *control[1]=0 ; |
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| 375 | *finalize[0]=0 ; |
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| 376 | *finalize[1]=0 ; |
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| 377 | winState[0]=false ; |
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| 378 | winState[1]=false ; |
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| 379 | current=0 ; |
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| 380 | |
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| 381 | if (hasWindows) |
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| 382 | { |
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| 383 | |
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| 384 | MPI_Win_attach(windows_[0], bufferHeader[0], bufferSize+headerSize) ; |
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| 385 | MPI_Win_attach(windows_[1], bufferHeader[1], bufferSize+headerSize) ; |
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| 386 | |
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| 387 | MPI_Win_lock(MPI_LOCK_EXCLUSIVE, clientRank_, 0, windows_[0]) ; |
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| 388 | MPI_Win_lock(MPI_LOCK_EXCLUSIVE, clientRank_, 0, windows_[1]) ; |
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| 389 | |
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| 390 | MPI_Win_unlock(clientRank_, windows_[1]) ; |
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| 391 | MPI_Win_unlock(clientRank_, windows_[0]) ; |
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| 392 | } |
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| 393 | |
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| 394 | lockBuffer() ; |
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| 395 | |
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[2221] | 396 | int size=sizeof(int)+2*sizeof(size_t)+2*sizeof(MPI_Aint) ; |
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[2130] | 397 | CBufferOut* bufOut = this->getBuffer(timelineEventChangeBufferSize, size); |
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| 398 | bufOut->put(size); |
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| 399 | bufOut->put(timelineEventChangeBufferSize); |
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| 400 | bufOut->put(newBufferSize_); |
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| 401 | bufOut->put(this->getWinAddress(0)); |
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| 402 | bufOut->put(this->getWinAddress(1)); |
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| 403 | |
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| 404 | resizingBufferStep_=3; |
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| 405 | unlockBuffer() ; |
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| 406 | } |
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| 407 | |
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[300] | 408 | bool CClientBuffer::hasPendingRequest(void) |
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| 409 | { |
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[1757] | 410 | |
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| 411 | lockBuffer() ; |
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| 412 | count=*bufferCount[current] ; |
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| 413 | unlockBuffer() ; |
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| 414 | |
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[732] | 415 | return (pending || count > 0); |
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[300] | 416 | } |
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[1757] | 417 | |
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| 418 | bool CClientBuffer::isNotifiedFinalized(void) |
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| 419 | { |
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| 420 | |
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| 421 | bool ret ; |
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| 422 | lockBuffer() ; |
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| 423 | ret=*finalize[current] == 1 ? true : false ; |
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| 424 | unlockBuffer() ; |
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| 425 | |
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| 426 | return ret; |
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| 427 | } |
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| 428 | |
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[509] | 429 | } |
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