[591] | 1 | #include "xios_spl.hpp" |
---|
[300] | 2 | #include "exception.hpp" |
---|
[380] | 3 | #include "log.hpp" |
---|
[300] | 4 | #include "buffer_out.hpp" |
---|
| 5 | #include "buffer_client.hpp" |
---|
[317] | 6 | #include "cxios.hpp" |
---|
[382] | 7 | #include "mpi.hpp" |
---|
[347] | 8 | #include "tracer.hpp" |
---|
[300] | 9 | |
---|
[335] | 10 | namespace xios |
---|
[300] | 11 | { |
---|
[732] | 12 | size_t CClientBuffer::maxRequestSize = 0; |
---|
[509] | 13 | |
---|
[1757] | 14 | CClientBuffer::CClientBuffer(MPI_Comm interComm, vector<MPI_Win>& windows, int clientRank, int serverRank, StdSize bufferSize, StdSize estimatedMaxEventSize) |
---|
[917] | 15 | : interComm(interComm) |
---|
[1757] | 16 | , clientRank_(clientRank) |
---|
[917] | 17 | , serverRank(serverRank) |
---|
| 18 | , bufferSize(bufferSize) |
---|
[1201] | 19 | , estimatedMaxEventSize(estimatedMaxEventSize) |
---|
| 20 | , maxEventSize(0) |
---|
[917] | 21 | , current(0) |
---|
| 22 | , count(0) |
---|
| 23 | , pending(false) |
---|
[1757] | 24 | , hasWindows(false) |
---|
| 25 | , windows_(windows) |
---|
[300] | 26 | { |
---|
[1757] | 27 | if (windows[0]==MPI_WIN_NULL && windows[1]==MPI_WIN_NULL) hasWindows=false ; |
---|
| 28 | else hasWindows=true ; |
---|
| 29 | |
---|
| 30 | MPI_Alloc_mem(bufferSize+headerSize, MPI_INFO_NULL, &bufferHeader[0]) ; |
---|
| 31 | MPI_Alloc_mem(bufferSize+headerSize, MPI_INFO_NULL, &bufferHeader[1]) ; |
---|
| 32 | buffer[0] = bufferHeader[0]+headerSize ; |
---|
| 33 | buffer[1] = bufferHeader[1]+headerSize ; |
---|
| 34 | firstTimeLine[0]=(size_t*)bufferHeader[0] ; |
---|
| 35 | firstTimeLine[1]=(size_t*)bufferHeader[1] ; |
---|
| 36 | bufferCount[0]=(size_t*)bufferHeader[0] +1 ; |
---|
| 37 | bufferCount[1]=(size_t*)bufferHeader[1] +1 ; |
---|
| 38 | control[0]=(size_t*)bufferHeader[0] +2 ; |
---|
| 39 | control[1]=(size_t*)bufferHeader[1] +2 ; |
---|
| 40 | finalize[0]=(size_t*)bufferHeader[0] +3 ; |
---|
| 41 | finalize[1]=(size_t*)bufferHeader[1] +3 ; |
---|
| 42 | |
---|
| 43 | *firstTimeLine[0]=0 ; |
---|
| 44 | *firstTimeLine[1]=0 ; |
---|
| 45 | *bufferCount[0]=0 ; |
---|
| 46 | *bufferCount[1]=0 ; |
---|
| 47 | *control[0]=0 ; |
---|
| 48 | *control[1]=0 ; |
---|
| 49 | *finalize[0]=0 ; |
---|
| 50 | *finalize[1]=0 ; |
---|
| 51 | winState[0]=false ; |
---|
| 52 | winState[1]=false ; |
---|
| 53 | |
---|
| 54 | |
---|
| 55 | if (hasWindows) |
---|
| 56 | { |
---|
| 57 | |
---|
| 58 | MPI_Win_attach(windows_[0], bufferHeader[0], bufferSize+headerSize) ; |
---|
| 59 | MPI_Win_attach(windows_[1], bufferHeader[1], bufferSize+headerSize) ; |
---|
| 60 | |
---|
| 61 | MPI_Group group ; |
---|
| 62 | int groupSize,groupRank ; |
---|
| 63 | MPI_Win_get_group(windows_[0], &group) ; |
---|
| 64 | MPI_Group_size(group, &groupSize) ; |
---|
| 65 | MPI_Group_rank(group, &groupRank) ; |
---|
| 66 | if (groupRank!=clientRank_) ERROR("CClientBuffer::CClientBuffer",<< " ClientRank != groupRank "<<clientRank_<<" "<<groupRank); |
---|
| 67 | |
---|
| 68 | MPI_Win_get_group(windows_[1], &group) ; |
---|
| 69 | MPI_Group_size(group, &groupSize) ; |
---|
| 70 | MPI_Group_rank(group, &groupRank) ; |
---|
| 71 | if (groupRank!=clientRank_) ERROR("CClientBuffer::CClientBuffer",<< " ClientRank != groupRank "<<clientRank_<<" "<<groupRank); |
---|
| 72 | |
---|
| 73 | MPI_Win_lock(MPI_LOCK_EXCLUSIVE, clientRank_, 0, windows_[0]) ; |
---|
| 74 | MPI_Win_lock(MPI_LOCK_EXCLUSIVE, clientRank_, 0, windows_[1]) ; |
---|
| 75 | |
---|
| 76 | MPI_Win_unlock(clientRank_, windows_[1]) ; |
---|
| 77 | MPI_Win_unlock(clientRank_, windows_[0]) ; |
---|
| 78 | } |
---|
[732] | 79 | retBuffer = new CBufferOut(buffer[current], bufferSize); |
---|
[1757] | 80 | info(10) << "CClientBuffer: allocated 2 x " << bufferSize << " bytes for server " << serverRank << endl; |
---|
[300] | 81 | } |
---|
[509] | 82 | |
---|
[1757] | 83 | MPI_Aint CClientBuffer::getWinAddress(int i) |
---|
| 84 | { |
---|
| 85 | MPI_Aint address ; |
---|
| 86 | |
---|
| 87 | if (hasWindows) MPI_Get_address(bufferHeader[i], &address) ; |
---|
| 88 | else address=0 ; |
---|
| 89 | |
---|
| 90 | return address ; |
---|
| 91 | } |
---|
| 92 | |
---|
[300] | 93 | CClientBuffer::~CClientBuffer() |
---|
| 94 | { |
---|
[1757] | 95 | //freeWindows() ; |
---|
| 96 | if (hasWindows) |
---|
| 97 | { |
---|
| 98 | MPI_Win_detach(windows_[0],bufferHeader[0]); |
---|
| 99 | MPI_Win_detach(windows_[1],bufferHeader[1]); |
---|
| 100 | MPI_Free_mem(bufferHeader[0]) ; |
---|
| 101 | MPI_Free_mem(bufferHeader[1]) ; |
---|
| 102 | } |
---|
| 103 | delete retBuffer; |
---|
[300] | 104 | } |
---|
[509] | 105 | |
---|
[1757] | 106 | /* void CClientBuffer::createWindows(MPI_Comm oneSidedComm) |
---|
| 107 | { |
---|
| 108 | MPI_Barrier(oneSidedComm) ; |
---|
| 109 | MPI_Win_create(bufferHeader[0], bufferSize+headerSize, 1, MPI_INFO_NULL, oneSidedComm, &(windows[0])) ; |
---|
| 110 | MPI_Win_create(bufferHeader[1], bufferSize+headerSize, 1, MPI_INFO_NULL, oneSidedComm, &(windows[1])) ; |
---|
| 111 | |
---|
| 112 | MPI_Win_lock(MPI_LOCK_EXCLUSIVE, 0, 0, windows[0]) ; |
---|
| 113 | *firstTimeLine[0]=0 ; |
---|
| 114 | *bufferCount[0]=0 ; |
---|
| 115 | *control[0]=0 ; |
---|
| 116 | MPI_Win_unlock(0, windows[0]) ; |
---|
| 117 | |
---|
| 118 | MPI_Win_lock(MPI_LOCK_EXCLUSIVE, 0, 0, windows[1]) ; |
---|
| 119 | *firstTimeLine[1]=0 ; |
---|
| 120 | *bufferCount[1]=0 ; |
---|
| 121 | *control[1]=0 ; |
---|
| 122 | MPI_Win_unlock(0, windows[1]) ; |
---|
| 123 | winState[0]=false ; |
---|
| 124 | winState[1]=false ; |
---|
| 125 | MPI_Barrier(oneSidedComm) ; |
---|
| 126 | hasWindows=true ; |
---|
| 127 | } |
---|
| 128 | */ |
---|
| 129 | |
---|
| 130 | /* |
---|
| 131 | void CClientBuffer::freeWindows() |
---|
| 132 | { |
---|
| 133 | if (hasWindows) |
---|
| 134 | { |
---|
| 135 | MPI_Win_lock(MPI_LOCK_EXCLUSIVE, 0, 0, windows_[0]) ; |
---|
| 136 | MPI_Win_lock(MPI_LOCK_EXCLUSIVE, 0, 0, windows_[1]) ; |
---|
| 137 | *control[0]=2 ; |
---|
| 138 | *control[1]=2 ; |
---|
| 139 | MPI_Win_unlock(0, windows_[1]) ; |
---|
| 140 | MPI_Win_unlock(0, windows_[0]) ; |
---|
| 141 | |
---|
| 142 | MPI_Win_free(&windows_[0]) ; |
---|
| 143 | MPI_Win_free(&windows_[1]) ; |
---|
| 144 | hasWindows=false ; |
---|
| 145 | } |
---|
| 146 | } |
---|
| 147 | */ |
---|
| 148 | void CClientBuffer::lockBuffer(void) |
---|
| 149 | { |
---|
| 150 | if (hasWindows) |
---|
| 151 | { |
---|
| 152 | // MPI_Win_lock(MPI_LOCK_EXCLUSIVE, clientRank_, 0, windows_[current]) ; |
---|
| 153 | long long int lock=1 ; |
---|
| 154 | long long int zero=0, one=1 ; |
---|
| 155 | |
---|
| 156 | MPI_Win_lock(MPI_LOCK_EXCLUSIVE,clientRank_, 0, windows_[current]) ; |
---|
| 157 | |
---|
| 158 | while(lock!=0) |
---|
| 159 | { |
---|
| 160 | MPI_Compare_and_swap(&one, &zero, &lock, MPI_LONG_LONG_INT, clientRank_, MPI_Aint_add(getWinAddress(current),2*sizeof(size_t)), |
---|
| 161 | windows_[current]) ; |
---|
| 162 | MPI_Win_flush(clientRank_, windows_[current]) ; |
---|
| 163 | } |
---|
| 164 | |
---|
| 165 | // info(100)<<"Buffer locked "<<&windows_<<" "<<current<<endl ; |
---|
| 166 | winState[current]=true ; |
---|
| 167 | } |
---|
| 168 | } |
---|
| 169 | |
---|
| 170 | void CClientBuffer::unlockBuffer(void) |
---|
| 171 | { |
---|
| 172 | if (hasWindows) |
---|
| 173 | { |
---|
| 174 | long long int lock=1 ; |
---|
| 175 | long long int zero=0, one=1 ; |
---|
| 176 | |
---|
| 177 | MPI_Compare_and_swap(&zero, &one, &lock, MPI_LONG_LONG_INT, clientRank_, MPI_Aint_add(getWinAddress(current),2*sizeof(size_t)), |
---|
| 178 | windows_[current]) ; |
---|
| 179 | MPI_Win_unlock(clientRank_, windows_[current]) ; |
---|
| 180 | |
---|
| 181 | // info(100)<<"Buffer unlocked "<<&windows_<<" "<<current<<endl ; |
---|
| 182 | winState[current]=false ; |
---|
| 183 | } |
---|
| 184 | } |
---|
| 185 | |
---|
[1227] | 186 | StdSize CClientBuffer::remain(void) |
---|
[300] | 187 | { |
---|
[732] | 188 | return bufferSize - count; |
---|
[300] | 189 | } |
---|
[509] | 190 | |
---|
[1227] | 191 | bool CClientBuffer::isBufferFree(StdSize size) |
---|
[300] | 192 | { |
---|
[1757] | 193 | // bool loop=true ; |
---|
| 194 | // while (loop) |
---|
| 195 | // { |
---|
| 196 | // lockBuffer(); |
---|
| 197 | // if (*control[current]==0) loop=false ; // attemp to read from server ? |
---|
| 198 | // else unlockBuffer() ; |
---|
| 199 | // } |
---|
| 200 | |
---|
| 201 | lockBuffer(); |
---|
[732] | 202 | if (size > bufferSize) |
---|
[1227] | 203 | ERROR("bool CClientBuffer::isBufferFree(StdSize size)", |
---|
[732] | 204 | << "The requested size (" << size << " bytes) is too big to fit the buffer (" << bufferSize << " bytes), please increase the client buffer size." << endl); |
---|
[509] | 205 | |
---|
[1201] | 206 | if (size > maxEventSize) |
---|
| 207 | { |
---|
| 208 | maxEventSize = size; |
---|
| 209 | |
---|
| 210 | if (size > estimatedMaxEventSize) |
---|
| 211 | error(0) << "WARNING: Unexpected event of size " << size << " for server " << serverRank |
---|
| 212 | << " (estimated max event size = " << estimatedMaxEventSize << ")" << std::endl; |
---|
| 213 | |
---|
| 214 | if (size > maxRequestSize) maxRequestSize = size; |
---|
| 215 | } |
---|
| 216 | |
---|
[1757] | 217 | count=*bufferCount[current] ; |
---|
| 218 | return (size <= remain()); |
---|
[300] | 219 | } |
---|
[509] | 220 | |
---|
| 221 | |
---|
[1757] | 222 | CBufferOut* CClientBuffer::getBuffer(size_t timeLine, StdSize size) |
---|
[300] | 223 | { |
---|
[732] | 224 | if (size <= remain()) |
---|
[300] | 225 | { |
---|
[732] | 226 | retBuffer->realloc(buffer[current] + count, size); |
---|
| 227 | count += size; |
---|
[1757] | 228 | if (*firstTimeLine[current]==0) *firstTimeLine[current]=timeLine ; |
---|
| 229 | *bufferCount[current]=count ; |
---|
| 230 | /* info(50)<<"CClientBuffer::getBuffer "<<" clientRank_ "<<clientRank_<<" serverRank "<<serverRank <<" current "<<current |
---|
| 231 | <<" size "<<size<<" timeLine "<< timeLine <<" firstTimeLine "<<*firstTimeLine[current]<<" count "<<*bufferCount[current]<<endl ; |
---|
| 232 | if (!winState[current]) info(40)<<"CClientBuffer::getBuffer "<<" Windows Not Locked... "<<" clientRank_ "<<clientRank_<<" serverRank "<<serverRank <<" current "<<current |
---|
| 233 | <<" size "<<size<<" timeLine "<< timeLine <<" firstTimeLine "<<*firstTimeLine[current]<<" count "<<*bufferCount[current]<<endl ;*/ |
---|
[732] | 234 | return retBuffer; |
---|
[300] | 235 | } |
---|
| 236 | else |
---|
| 237 | { |
---|
[1227] | 238 | ERROR("CBufferOut* CClientBuffer::getBuffer(StdSize size)", |
---|
[732] | 239 | << "Not enough space in buffer, this should not have happened..."); |
---|
| 240 | return NULL; |
---|
[300] | 241 | } |
---|
[509] | 242 | } |
---|
| 243 | |
---|
[1757] | 244 | void CClientBuffer::infoBuffer(void) |
---|
[300] | 245 | { |
---|
[1757] | 246 | |
---|
| 247 | char checksum=0 ; |
---|
| 248 | for(size_t i=0;i<*bufferCount[current];i++) checksum=checksum+buffer[current][i] ; |
---|
| 249 | |
---|
| 250 | char checksumFirst=0 ; |
---|
| 251 | for(size_t i=5; i<10 && i<*bufferCount[current] ;i++) checksumFirst=checksumFirst+buffer[current][i] ; |
---|
| 252 | |
---|
| 253 | char checksumLast=0 ; |
---|
| 254 | for(size_t i=(*bufferCount[current]<10)?0:*bufferCount[current]-10; i<*bufferCount[current] ; i++) checksumLast=checksumLast+buffer[current][i] ; |
---|
| 255 | |
---|
| 256 | info(45)<<"CClientBuffer::infoBuffer "<<" clientRank_ "<<clientRank_<<" serverRank "<<serverRank <<" current "<<current<<" WinState "<<winState[current] |
---|
| 257 | <<" firstTimeLine "<<*firstTimeLine[current]<<" count "<<*bufferCount[current]<<" checksum "<<(int)checksum<<" " |
---|
| 258 | <<(int)buffer[current][0]<<" "<<(int)buffer[current][1]<<" "<<(int)buffer[current][2]<<" "<<(int)buffer[current][3]<<" "<<(int)buffer[current][4]<<" "<<(int)buffer[current][5]<<" " |
---|
| 259 | <<(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 ; |
---|
| 260 | |
---|
| 261 | } |
---|
| 262 | |
---|
| 263 | bool CClientBuffer::checkBuffer(bool send) |
---|
| 264 | { |
---|
[1639] | 265 | MPI_Status status; |
---|
[732] | 266 | int flag; |
---|
[509] | 267 | |
---|
[300] | 268 | if (pending) |
---|
| 269 | { |
---|
[732] | 270 | traceOff(); |
---|
[1639] | 271 | MPI_Test(&request, &flag, &status); |
---|
[732] | 272 | traceOn(); |
---|
| 273 | if (flag == true) pending = false; |
---|
[300] | 274 | } |
---|
| 275 | |
---|
| 276 | if (!pending) |
---|
| 277 | { |
---|
[1757] | 278 | if (!send) return false ; |
---|
[732] | 279 | if (count > 0) |
---|
[300] | 280 | { |
---|
[1757] | 281 | lockBuffer() ; |
---|
| 282 | // if (*control[current]==0 && bufferCount[current] > 0) |
---|
| 283 | if (*bufferCount[current] > 0) |
---|
| 284 | { |
---|
| 285 | MPI_Issend(buffer[current], count, MPI_CHAR, serverRank, 20, interComm, &request); |
---|
| 286 | pending = true; |
---|
| 287 | // *control[current]=0 ; |
---|
| 288 | *firstTimeLine[current]=0 ; |
---|
| 289 | *bufferCount[current]=0 ; |
---|
| 290 | |
---|
| 291 | unlockBuffer() ; |
---|
| 292 | |
---|
| 293 | if (current == 1) current = 0; |
---|
| 294 | else current = 1; |
---|
| 295 | count = 0; |
---|
| 296 | } |
---|
| 297 | else unlockBuffer() ; |
---|
[300] | 298 | } |
---|
| 299 | } |
---|
[732] | 300 | |
---|
| 301 | return pending; |
---|
[300] | 302 | } |
---|
[509] | 303 | |
---|
[300] | 304 | bool CClientBuffer::hasPendingRequest(void) |
---|
| 305 | { |
---|
[1757] | 306 | |
---|
| 307 | lockBuffer() ; |
---|
| 308 | count=*bufferCount[current] ; |
---|
| 309 | unlockBuffer() ; |
---|
| 310 | |
---|
[732] | 311 | return (pending || count > 0); |
---|
[300] | 312 | } |
---|
[1757] | 313 | |
---|
| 314 | bool CClientBuffer::isNotifiedFinalized(void) |
---|
| 315 | { |
---|
| 316 | |
---|
| 317 | bool ret ; |
---|
| 318 | lockBuffer() ; |
---|
| 319 | ret=*finalize[current] == 1 ? true : false ; |
---|
| 320 | unlockBuffer() ; |
---|
| 321 | |
---|
| 322 | return ret; |
---|
| 323 | } |
---|
| 324 | |
---|
[509] | 325 | } |
---|