| 1 |
C $Header: /u/gcmpack/models/MITgcmUV/eesupp/src/exch_recv_get_y.F,v 1.1 1998/09/29 18:53:45 cnh Exp $ |
| 2 |
#include "CPP_EEOPTIONS.h" |
| 3 |
|
| 4 |
SUBROUTINE EXCH_RL_RECV_GET_Y( array, |
| 5 |
I myOLw, myOLe, myOLs, myOLn, myNz, |
| 6 |
I exchWidthX, exchWidthY, |
| 7 |
I theSimulationMode, theCornerMode, myThid ) |
| 8 |
C /==========================================================\ |
| 9 |
C | SUBROUTINE RECV_GET_Y | |
| 10 |
C | o "Send" or "put" Y edges for RL array. | |
| 11 |
C |==========================================================| |
| 12 |
C | Routine that invokes actual message passing send or | |
| 13 |
C | direct "put" of data to update X faces of an XY[R] array.| |
| 14 |
C \==========================================================/ |
| 15 |
IMPLICIT NONE |
| 16 |
|
| 17 |
C == Global variables == |
| 18 |
#include "SIZE.h" |
| 19 |
#include "EEPARAMS.h" |
| 20 |
#include "EESUPPORT.h" |
| 21 |
#include "EXCH.h" |
| 22 |
|
| 23 |
C == Routine arguments == |
| 24 |
C array - Array with edges to exchange. |
| 25 |
C myOLw - West, East, North and South overlap region sizes. |
| 26 |
C myOLe |
| 27 |
C myOLn |
| 28 |
C myOLs |
| 29 |
C exchWidthX - Width of data region exchanged. |
| 30 |
C exchWidthY |
| 31 |
C theSimulationMode - Forward or reverse mode exchange ( provides |
| 32 |
C support for adjoint integration of code. ) |
| 33 |
C theCornerMode - Flag indicating whether corner updates are |
| 34 |
C needed. |
| 35 |
C myThid - Thread number of this instance of S/R EXCH... |
| 36 |
C eBl - Edge buffer level |
| 37 |
INTEGER myOLw |
| 38 |
INTEGER myOLe |
| 39 |
INTEGER myOLs |
| 40 |
INTEGER myOLn |
| 41 |
INTEGER myNz |
| 42 |
_RL array(1-myOLw:sNx+myOLe, |
| 43 |
& 1-myOLs:sNy+myOLn, |
| 44 |
& myNZ, nSx, nSy) |
| 45 |
INTEGER exchWidthX |
| 46 |
INTEGER exchWidthY |
| 47 |
INTEGER theSimulationMode |
| 48 |
INTEGER theCornerMode |
| 49 |
INTEGER myThid |
| 50 |
CEndOfInterface |
| 51 |
|
| 52 |
C == Local variables == |
| 53 |
C I, J, K, iMin, iMax, iB - Loop counters and extents |
| 54 |
C bi, bj |
| 55 |
C biS, bjS - South tile indices |
| 56 |
C biN, bjN - North tile indices |
| 57 |
C eBl - Current exchange buffer level |
| 58 |
C theProc, theTag, theType, - Variables used in message building |
| 59 |
C theSize |
| 60 |
C southCommMode - Working variables holding type |
| 61 |
C northCommMode of communication a particular |
| 62 |
C tile face uses. |
| 63 |
C spinCount - Exchange statistics counter |
| 64 |
INTEGER I, J, K, iMin, iMax, jMin, jMax, iB, iB0 |
| 65 |
INTEGER bi, bj, biS, bjS, biN, bjN |
| 66 |
INTEGER eBl |
| 67 |
INTEGER southCommMode |
| 68 |
INTEGER northCommMode |
| 69 |
INTEGER spinCount |
| 70 |
#ifdef ALLOW_USE_MPI |
| 71 |
INTEGER theProc, theTag, theType, theSize |
| 72 |
INTEGER mpiStatus(MPI_STATUS_SIZE), mpiRc |
| 73 |
#endif |
| 74 |
|
| 75 |
|
| 76 |
C-- Under a "put" scenario we |
| 77 |
C-- i. set completetion signal for buffer we put into. |
| 78 |
C-- ii. wait for completetion signal indicating data has been put in |
| 79 |
C-- our buffer. |
| 80 |
C-- Under a messaging mode we "receive" the message. |
| 81 |
C-- Under a "get" scenario we |
| 82 |
C-- i. Check that the data is ready. |
| 83 |
C-- ii. Read the data. |
| 84 |
C-- iii. Set data read flag + memory sync. |
| 85 |
|
| 86 |
|
| 87 |
DO bj=myByLo(myThid),myByHi(myThid) |
| 88 |
DO bi=myBxLo(myThid),myBxHi(myThid) |
| 89 |
ebL = exchangeBufLevel(1,bi,bj) |
| 90 |
southCommMode = _tileCommModeS(bi,bj) |
| 91 |
northCommMode = _tileCommModeN(bi,bj) |
| 92 |
biN = _tileBiN(bi,bj) |
| 93 |
bjN = _tileBjN(bi,bj) |
| 94 |
biS = _tileBiS(bi,bj) |
| 95 |
bjS = _tileBjS(bi,bj) |
| 96 |
IF ( southCommMode .EQ. COMM_MSG ) THEN |
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#ifdef ALLOW_USE_MPI |
| 98 |
#ifndef ALWAYS_USE_MPI |
| 99 |
IF ( usingMPI ) THEN |
| 100 |
#endif |
| 101 |
theProc = tilePidS(bi,bj) |
| 102 |
theTag = _tileTagRecvS(bi,bj) |
| 103 |
theType = MPI_DOUBLE_PRECISION |
| 104 |
theSize = sNx*exchWidthY*myNz |
| 105 |
IF ( theCornerMode .EQ. EXCH_UPDATE_CORNERS ) |
| 106 |
& theSize = (sNx+2*exchWidthX)*exchWidthY*myNz |
| 107 |
CALL MPI_Recv( southRecvBuf_RL(1,eBl,bi,bj), theSize, theType, |
| 108 |
& theProc, theTag, MPI_COMM_WORLD, |
| 109 |
& mpiStatus, mpiRc ) |
| 110 |
#ifndef ALWAYS_USE_MPI |
| 111 |
ENDIF |
| 112 |
#endif |
| 113 |
#endif /* ALLOW_USE_MPI */ |
| 114 |
ENDIF |
| 115 |
IF ( northCommMode .EQ. COMM_MSG ) THEN |
| 116 |
#ifdef ALLOW_USE_MPI |
| 117 |
#ifndef ALWAYS_USE_MPI |
| 118 |
IF ( usingMPI ) THEN |
| 119 |
#endif |
| 120 |
theProc = tilePidN(bi,bj) |
| 121 |
theTag = _tileTagRecvN(bi,bj) |
| 122 |
theType = MPI_DOUBLE_PRECISION |
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theSize = sNx*exchWidthY*myNz |
| 124 |
IF ( theCornerMode .EQ. EXCH_UPDATE_CORNERS ) |
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& theSize = (sNx+2*exchWidthX)*exchWidthY*myNz |
| 126 |
CALL MPI_Recv( northRecvBuf_RL(1,eBl,bi,bj), theSize, theType, |
| 127 |
& theProc, theTag, MPI_COMM_WORLD, |
| 128 |
& mpiStatus, mpiRc ) |
| 129 |
#ifndef ALWAYS_USE_MPI |
| 130 |
ENDIF |
| 131 |
#endif |
| 132 |
#endif /* ALLOW_USE_MPI */ |
| 133 |
ENDIF |
| 134 |
ENDDO |
| 135 |
ENDDO |
| 136 |
|
| 137 |
C-- Wait for buffers I am going read to be ready. |
| 138 |
IF ( exchUsesBarrier ) THEN |
| 139 |
C o On some machines ( T90 ) use system barrier rather than spinning. |
| 140 |
CALL BARRIER( myThid ) |
| 141 |
ELSE |
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C o Spin waiting for completetion flag. This avoids a global-lock |
| 143 |
C i.e. we only lock waiting for data that we need. |
| 144 |
DO bj=myByLo(myThid),myByHi(myThid) |
| 145 |
DO bi=myBxLo(myThid),myBxHi(myThid) |
| 146 |
ebL = exchangeBufLevel(1,bi,bj) |
| 147 |
southCommMode = _tileCommModeS(bi,bj) |
| 148 |
northCommMode = _tileCommModeN(bi,bj) |
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spinCount = 0 |
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10 CONTINUE |
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CALL FOOL_THE_COMPILER |
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spinCount = spinCount+1 |
| 153 |
C IF ( myThid .EQ. 1 .AND. spinCount .GT. _EXCH_SPIN_LIMIT ) THEN |
| 154 |
C STOP ' S/R EXCH_RECV_GET_Y: spinCount .GT. _EXCH_SPIN_LIMIT' |
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C ENDIF |
| 156 |
IF ( southRecvAck(eBl,bi,bj) .EQ. 0. ) GOTO 10 |
| 157 |
IF ( northRecvAck(eBl,bi,bj) .EQ. 0. ) GOTO 10 |
| 158 |
C Clear requests |
| 159 |
southRecvAck(eBl,bi,bj) = 0. |
| 160 |
northRecvAck(eBl,bi,bj) = 0. |
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C Update statistics |
| 162 |
IF ( exchCollectStatistics ) THEN |
| 163 |
exchRecvYExchCount(1,bi,bj) = exchRecvYExchCount(1,bi,bj)+1 |
| 164 |
exchRecvYSpinCount(1,bi,bj) = |
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& exchRecvYSpinCount(1,bi,bj)+spinCount |
| 166 |
exchRecvYSpinMax(1,bi,bj) = |
| 167 |
& MAX(exchRecvYSpinMax(1,bi,bj),spinCount) |
| 168 |
exchRecvYSpinMin(1,bi,bj) = |
| 169 |
& MIN(exchRecvYSpinMin(1,bi,bj),spinCount) |
| 170 |
ENDIF |
| 171 |
|
| 172 |
|
| 173 |
IF ( exchNReqsY(1,bi,bj) .GT. 0 ) THEN |
| 174 |
#ifdef ALLOW_USE_MPI |
| 175 |
#ifndef ALWAYS_USE_MPI |
| 176 |
IF ( usingMPI ) THEN |
| 177 |
#endif |
| 178 |
CALL MPI_Waitall( exchNReqsY(1,bi,bj), exchReqIdY(1,1,bi,bj), |
| 179 |
& mpiStatus, mpiRC ) |
| 180 |
#ifndef ALWAYS_USE_MPI |
| 181 |
ENDIF |
| 182 |
#endif |
| 183 |
#endif /* ALLOW_USE_MPI */ |
| 184 |
ENDIF |
| 185 |
C Clear outstanding requests counter |
| 186 |
exchNReqsY(1,bi,bj) = 0 |
| 187 |
ENDDO |
| 188 |
ENDDO |
| 189 |
ENDIF |
| 190 |
|
| 191 |
C-- Read from the buffers |
| 192 |
DO bj=myByLo(myThid),myByHi(myThid) |
| 193 |
DO bi=myBxLo(myThid),myBxHi(myThid) |
| 194 |
|
| 195 |
ebL = exchangeBufLevel(1,bi,bj) |
| 196 |
biN = _tileBiN(bi,bj) |
| 197 |
bjN = _tileBjN(bi,bj) |
| 198 |
biS = _tileBiS(bi,bj) |
| 199 |
bjS = _tileBjS(bi,bj) |
| 200 |
southCommMode = _tileCommModeS(bi,bj) |
| 201 |
northCommMode = _tileCommModeN(bi,bj) |
| 202 |
IF ( theCornerMode .EQ. EXCH_UPDATE_CORNERS ) THEN |
| 203 |
iMin = 1-exchWidthX |
| 204 |
iMax = sNx+exchWidthX |
| 205 |
ELSE |
| 206 |
iMin = 1 |
| 207 |
iMax = sNx |
| 208 |
ENDIF |
| 209 |
IF ( _theSimulationMode .EQ. FORWARD_SIMULATION ) THEN |
| 210 |
jMin = sNy+1 |
| 211 |
jMax = sNy+exchWidthY |
| 212 |
iB0 = 0 |
| 213 |
IF ( northCommMode .EQ. COMM_PUT |
| 214 |
& .OR. northCommMode .EQ. COMM_MSG ) THEN |
| 215 |
iB = 0 |
| 216 |
DO K=1,myNz |
| 217 |
DO J=jMin,jMax |
| 218 |
DO I=iMin,iMax |
| 219 |
iB = iB + 1 |
| 220 |
array(I,J,K,bi,bj) = northRecvBuf_RL(iB,eBl,bi,bj) |
| 221 |
ENDDO |
| 222 |
ENDDO |
| 223 |
ENDDO |
| 224 |
ELSEIF ( northCommMode .EQ. COMM_GET ) THEN |
| 225 |
DO K=1,myNz |
| 226 |
iB = iB0 |
| 227 |
DO J=jMin,jMax |
| 228 |
iB = iB+1 |
| 229 |
DO I=iMin,iMax |
| 230 |
array(I,J,K,bi,bj) = array(I,iB,K,biN,bjN) |
| 231 |
ENDDO |
| 232 |
ENDDO |
| 233 |
ENDDO |
| 234 |
ENDIF |
| 235 |
ELSEIF ( _theSimulationMode .EQ. REVERSE_SIMULATION ) THEN |
| 236 |
jMin = sNy-exchWidthY+1 |
| 237 |
jMax = sNy |
| 238 |
iB0 = 1-exchWidthY-1 |
| 239 |
IF ( northCommMode .EQ. COMM_PUT |
| 240 |
& .OR. northCommMode .EQ. COMM_MSG ) THEN |
| 241 |
iB = 0 |
| 242 |
DO K=1,myNz |
| 243 |
DO J=jMin,jMax |
| 244 |
DO I=iMin,iMax |
| 245 |
iB = iB + 1 |
| 246 |
array(I,J,K,bi,bj) = |
| 247 |
& array(I,J,K,bi,bj)+northRecvBuf_RL(iB,eBl,bi,bj) |
| 248 |
ENDDO |
| 249 |
ENDDO |
| 250 |
ENDDO |
| 251 |
ELSEIF ( northCommMode .EQ. COMM_GET ) THEN |
| 252 |
DO K=1,myNz |
| 253 |
iB = iB0 |
| 254 |
DO J=jMin,jMax |
| 255 |
iB = iB+1 |
| 256 |
DO I=iMin,iMax |
| 257 |
array(I,J,K,bi,bj) = |
| 258 |
& array(I,J,K,bi,bj)+array(I,iB,K,biN,bjN) |
| 259 |
ENDDO |
| 260 |
ENDDO |
| 261 |
ENDDO |
| 262 |
ENDIF |
| 263 |
ENDIF |
| 264 |
|
| 265 |
IF ( _theSimulationMode .EQ. FORWARD_SIMULATION ) THEN |
| 266 |
jMin = 1-exchWidthY |
| 267 |
jMax = 0 |
| 268 |
iB0 = sNy-exchWidthY |
| 269 |
IF ( southCommMode .EQ. COMM_PUT |
| 270 |
& .OR. southCommMode .EQ. COMM_MSG ) THEN |
| 271 |
iB = 0 |
| 272 |
DO K=1,myNz |
| 273 |
DO J=jMin,jMax |
| 274 |
DO I=iMin,iMax |
| 275 |
iB = iB + 1 |
| 276 |
array(I,J,K,bi,bj) = southRecvBuf_RL(iB,eBl,bi,bj) |
| 277 |
ENDDO |
| 278 |
ENDDO |
| 279 |
ENDDO |
| 280 |
ELSEIF ( southCommMode .EQ. COMM_GET ) THEN |
| 281 |
DO K=1,myNz |
| 282 |
iB = iB0 |
| 283 |
DO J=jMin,jMax |
| 284 |
iB = iB+1 |
| 285 |
DO I=iMin,iMax |
| 286 |
array(I,J,K,bi,bj) = array(I,iB,K,biS,bjS) |
| 287 |
ENDDO |
| 288 |
ENDDO |
| 289 |
ENDDO |
| 290 |
ENDIF |
| 291 |
ELSEIF ( _theSimulationMode .EQ. REVERSE_SIMULATION ) THEN |
| 292 |
jMin = 1 |
| 293 |
jMax = 1+exchWidthY-1 |
| 294 |
iB0 = sNy |
| 295 |
IF ( southCommMode .EQ. COMM_PUT |
| 296 |
& .OR. southCommMode .EQ. COMM_MSG ) THEN |
| 297 |
iB = 0 |
| 298 |
DO K=1,myNz |
| 299 |
DO J=jMin,jMax |
| 300 |
DO I=iMin,iMax |
| 301 |
iB = iB + 1 |
| 302 |
array(I,J,K,bi,bj) = |
| 303 |
& array(I,J,K,bi,bj)+southRecvBuf_RL(iB,eBl,bi,bj) |
| 304 |
ENDDO |
| 305 |
ENDDO |
| 306 |
ENDDO |
| 307 |
ELSEIF ( southCommMode .EQ. COMM_GET ) THEN |
| 308 |
DO K=1,myNz |
| 309 |
iB = iB0 |
| 310 |
DO J=jMin,jMax |
| 311 |
iB = iB+1 |
| 312 |
DO I=iMin,iMax |
| 313 |
array(I,J,K,bi,bj) = |
| 314 |
& array(I,J,K,bi,bj)+array(I,iB,K,biS,bjS) |
| 315 |
ENDDO |
| 316 |
ENDDO |
| 317 |
ENDDO |
| 318 |
ENDIF |
| 319 |
ENDIF |
| 320 |
ENDDO |
| 321 |
ENDDO |
| 322 |
|
| 323 |
RETURN |
| 324 |
END |
| 325 |
|
| 326 |
|
| 327 |
SUBROUTINE EXCH_RS_RECV_GET_Y( array, |
| 328 |
I myOLw, myOLe, myOLs, myOLn, myNz, |
| 329 |
I exchWidthX, exchWidthY, |
| 330 |
I theSimulationMode, theCornerMode, myThid ) |
| 331 |
C /==========================================================\ |
| 332 |
C | SUBROUTINE RECV_GET_Y | |
| 333 |
C | o "Send" or "put" Y edges for RS array. | |
| 334 |
C |==========================================================| |
| 335 |
C | Routine that invokes actual message passing send or | |
| 336 |
C | direct "put" of data to update X faces of an XY[R] array.| |
| 337 |
C \==========================================================/ |
| 338 |
IMPLICIT NONE |
| 339 |
|
| 340 |
C == Global variables == |
| 341 |
#include "SIZE.h" |
| 342 |
#include "EEPARAMS.h" |
| 343 |
#include "EESUPPORT.h" |
| 344 |
#include "EXCH.h" |
| 345 |
|
| 346 |
C == Routine arguments == |
| 347 |
C array - Array with edges to exchange. |
| 348 |
C myOLw - West, East, North and South overlap region sizes. |
| 349 |
C myOLe |
| 350 |
C myOLn |
| 351 |
C myOLs |
| 352 |
C exchWidthX - Width of data region exchanged. |
| 353 |
C exchWidthY |
| 354 |
C theSimulationMode - Forward or reverse mode exchange ( provides |
| 355 |
C support for adjoint integration of code. ) |
| 356 |
C theCornerMode - Flag indicating whether corner updates are |
| 357 |
C needed. |
| 358 |
C myThid - Thread number of this instance of S/R EXCH... |
| 359 |
C eBl - Edge buffer level |
| 360 |
INTEGER myOLw |
| 361 |
INTEGER myOLe |
| 362 |
INTEGER myOLs |
| 363 |
INTEGER myOLn |
| 364 |
INTEGER myNz |
| 365 |
_RS array(1-myOLw:sNx+myOLe, |
| 366 |
& 1-myOLs:sNy+myOLn, |
| 367 |
& myNZ, nSx, nSy) |
| 368 |
INTEGER exchWidthX |
| 369 |
INTEGER exchWidthY |
| 370 |
INTEGER theSimulationMode |
| 371 |
INTEGER theCornerMode |
| 372 |
INTEGER myThid |
| 373 |
CEndOfInterface |
| 374 |
|
| 375 |
C == Local variables == |
| 376 |
C I, J, K, iMin, iMax, iB - Loop counters and extents |
| 377 |
C bi, bj |
| 378 |
C biS, bjS - South tile indices |
| 379 |
C biN, bjN - North tile indices |
| 380 |
C eBl - Current exchange buffer level |
| 381 |
C theProc, theTag, theType, - Variables used in message building |
| 382 |
C theSize |
| 383 |
C southCommMode - Working variables holding type |
| 384 |
C northCommMode of communication a particular |
| 385 |
C tile face uses. |
| 386 |
C spinCount - Exchange statistics counter |
| 387 |
INTEGER I, J, K, iMin, iMax, jMin, jMax, iB, iB0 |
| 388 |
INTEGER bi, bj, biS, bjS, biN, bjN |
| 389 |
INTEGER eBl |
| 390 |
INTEGER southCommMode |
| 391 |
INTEGER northCommMode |
| 392 |
INTEGER spinCount |
| 393 |
#ifdef ALLOW_USE_MPI |
| 394 |
INTEGER theProc, theTag, theType, theSize |
| 395 |
INTEGER mpiStatus(MPI_STATUS_SIZE), mpiRc |
| 396 |
#endif |
| 397 |
|
| 398 |
|
| 399 |
C-- Under a "put" scenario we |
| 400 |
C-- i. set completetion signal for buffer we put into. |
| 401 |
C-- ii. wait for completetion signal indicating data has been put in |
| 402 |
C-- our buffer. |
| 403 |
C-- Under a messaging mode we "receive" the message. |
| 404 |
C-- Under a "get" scenario we |
| 405 |
C-- i. Check that the data is ready. |
| 406 |
C-- ii. Read the data. |
| 407 |
C-- iii. Set data read flag + memory sync. |
| 408 |
|
| 409 |
|
| 410 |
DO bj=myByLo(myThid),myByHi(myThid) |
| 411 |
DO bi=myBxLo(myThid),myBxHi(myThid) |
| 412 |
ebL = exchangeBufLevel(1,bi,bj) |
| 413 |
southCommMode = _tileCommModeS(bi,bj) |
| 414 |
northCommMode = _tileCommModeN(bi,bj) |
| 415 |
biN = _tileBiN(bi,bj) |
| 416 |
bjN = _tileBjN(bi,bj) |
| 417 |
biS = _tileBiS(bi,bj) |
| 418 |
bjS = _tileBjS(bi,bj) |
| 419 |
IF ( southCommMode .EQ. COMM_MSG ) THEN |
| 420 |
#ifdef ALLOW_USE_MPI |
| 421 |
#ifndef ALWAYS_USE_MPI |
| 422 |
IF ( usingMPI ) THEN |
| 423 |
#endif |
| 424 |
theProc = tilePidS(bi,bj) |
| 425 |
theTag = _tileTagRecvS(bi,bj) |
| 426 |
theType = MPI_DOUBLE_PRECISION |
| 427 |
#ifdef RS_IS_REAL4 |
| 428 |
theType = MPI_REAL4 |
| 429 |
#endif |
| 430 |
theSize = sNx*exchWidthY*myNz |
| 431 |
IF ( theCornerMode .EQ. EXCH_UPDATE_CORNERS ) |
| 432 |
& theSize = (sNx+2*exchWidthX)*exchWidthY*myNz |
| 433 |
CALL MPI_Recv( southRecvBuf_RS(1,eBl,bi,bj), theSize, theType, |
| 434 |
& theProc, theTag, MPI_COMM_WORLD, |
| 435 |
& mpiStatus, mpiRc ) |
| 436 |
#ifndef ALWAYS_USE_MPI |
| 437 |
ENDIF |
| 438 |
#endif |
| 439 |
#endif /* ALLOW_USE_MPI */ |
| 440 |
ENDIF |
| 441 |
IF ( northCommMode .EQ. COMM_MSG ) THEN |
| 442 |
#ifdef ALLOW_USE_MPI |
| 443 |
#ifndef ALWAYS_USE_MPI |
| 444 |
IF ( usingMPI ) THEN |
| 445 |
#endif |
| 446 |
theProc = tilePidN(bi,bj) |
| 447 |
theTag = _tileTagRecvN(bi,bj) |
| 448 |
theType = MPI_DOUBLE_PRECISION |
| 449 |
#ifdef RS_IS_REAL4 |
| 450 |
theType = MPI_REAL4 |
| 451 |
#endif |
| 452 |
theSize = sNx*exchWidthY*myNz |
| 453 |
IF ( theCornerMode .EQ. EXCH_UPDATE_CORNERS ) |
| 454 |
& theSize = (sNx+2*exchWidthX)*exchWidthY*myNz |
| 455 |
CALL MPI_Recv( northRecvBuf_RS(1,eBl,bi,bj), theSize, theType, |
| 456 |
& theProc, theTag, MPI_COMM_WORLD, |
| 457 |
& mpiStatus, mpiRc ) |
| 458 |
#ifndef ALWAYS_USE_MPI |
| 459 |
ENDIF |
| 460 |
#endif |
| 461 |
#endif /* ALLOW_USE_MPI */ |
| 462 |
ENDIF |
| 463 |
ENDDO |
| 464 |
ENDDO |
| 465 |
|
| 466 |
C-- Wait for buffers I am going read to be ready. |
| 467 |
IF ( exchUsesBarrier ) THEN |
| 468 |
C o On some machines ( T90 ) use system barrier rather than spinning. |
| 469 |
CALL BARRIER( myThid ) |
| 470 |
ELSE |
| 471 |
C o Spin waiting for completetion flag. This avoids a global-lock |
| 472 |
C i.e. we only lock waiting for data that we need. |
| 473 |
DO bj=myByLo(myThid),myByHi(myThid) |
| 474 |
DO bi=myBxLo(myThid),myBxHi(myThid) |
| 475 |
ebL = exchangeBufLevel(1,bi,bj) |
| 476 |
southCommMode = _tileCommModeS(bi,bj) |
| 477 |
northCommMode = _tileCommModeN(bi,bj) |
| 478 |
spinCount = 0 |
| 479 |
10 CONTINUE |
| 480 |
CALL FOOL_THE_COMPILER |
| 481 |
spinCount = spinCount+1 |
| 482 |
C IF ( myThid .EQ. 1 .AND. spinCount .GT. _EXCH_SPIN_LIMIT ) THEN |
| 483 |
C STOP ' S/R EXCH_RECV_GET_Y: spinCount .GT. _EXCH_SPIN_LIMIT' |
| 484 |
C ENDIF |
| 485 |
IF ( southRecvAck(eBl,bi,bj) .EQ. 0. ) GOTO 10 |
| 486 |
IF ( northRecvAck(eBl,bi,bj) .EQ. 0. ) GOTO 10 |
| 487 |
C Clear requests |
| 488 |
southRecvAck(eBl,bi,bj) = 0. |
| 489 |
northRecvAck(eBl,bi,bj) = 0. |
| 490 |
C Update statistics |
| 491 |
IF ( exchCollectStatistics ) THEN |
| 492 |
exchRecvYExchCount(1,bi,bj) = exchRecvYExchCount(1,bi,bj)+1 |
| 493 |
exchRecvYSpinCount(1,bi,bj) = |
| 494 |
& exchRecvYSpinCount(1,bi,bj)+spinCount |
| 495 |
exchRecvYSpinMax(1,bi,bj) = |
| 496 |
& MAX(exchRecvYSpinMax(1,bi,bj),spinCount) |
| 497 |
exchRecvYSpinMin(1,bi,bj) = |
| 498 |
& MIN(exchRecvYSpinMin(1,bi,bj),spinCount) |
| 499 |
ENDIF |
| 500 |
|
| 501 |
|
| 502 |
IF ( exchNReqsY(1,bi,bj) .GT. 0 ) THEN |
| 503 |
#ifdef ALLOW_USE_MPI |
| 504 |
#ifndef ALWAYS_USE_MPI |
| 505 |
IF ( usingMPI ) THEN |
| 506 |
#endif |
| 507 |
CALL MPI_Waitall( exchNReqsY(1,bi,bj), exchReqIdY(1,1,bi,bj), |
| 508 |
& mpiStatus, mpiRC ) |
| 509 |
#ifndef ALWAYS_USE_MPI |
| 510 |
ENDIF |
| 511 |
#endif |
| 512 |
#endif /* ALLOW_USE_MPI */ |
| 513 |
ENDIF |
| 514 |
C Clear outstanding requests counter |
| 515 |
exchNReqsY(1,bi,bj) = 0 |
| 516 |
ENDDO |
| 517 |
ENDDO |
| 518 |
ENDIF |
| 519 |
|
| 520 |
C-- Read from the buffers |
| 521 |
DO bj=myByLo(myThid),myByHi(myThid) |
| 522 |
DO bi=myBxLo(myThid),myBxHi(myThid) |
| 523 |
|
| 524 |
ebL = exchangeBufLevel(1,bi,bj) |
| 525 |
biN = _tileBiN(bi,bj) |
| 526 |
bjN = _tileBjN(bi,bj) |
| 527 |
biS = _tileBiS(bi,bj) |
| 528 |
bjS = _tileBjS(bi,bj) |
| 529 |
southCommMode = _tileCommModeS(bi,bj) |
| 530 |
northCommMode = _tileCommModeN(bi,bj) |
| 531 |
IF ( theCornerMode .EQ. EXCH_UPDATE_CORNERS ) THEN |
| 532 |
iMin = 1-exchWidthX |
| 533 |
iMax = sNx+exchWidthX |
| 534 |
ELSE |
| 535 |
iMin = 1 |
| 536 |
iMax = sNx |
| 537 |
ENDIF |
| 538 |
IF ( _theSimulationMode .EQ. FORWARD_SIMULATION ) THEN |
| 539 |
jMin = sNy+1 |
| 540 |
jMax = sNy+exchWidthY |
| 541 |
iB0 = 0 |
| 542 |
IF ( northCommMode .EQ. COMM_PUT |
| 543 |
& .OR. northCommMode .EQ. COMM_MSG ) THEN |
| 544 |
iB = 0 |
| 545 |
DO K=1,myNz |
| 546 |
DO J=jMin,jMax |
| 547 |
DO I=iMin,iMax |
| 548 |
iB = iB + 1 |
| 549 |
array(I,J,K,bi,bj) = northRecvBuf_RS(iB,eBl,bi,bj) |
| 550 |
ENDDO |
| 551 |
ENDDO |
| 552 |
ENDDO |
| 553 |
ELSEIF ( northCommMode .EQ. COMM_GET ) THEN |
| 554 |
DO K=1,myNz |
| 555 |
iB = iB0 |
| 556 |
DO J=jMin,jMax |
| 557 |
iB = iB+1 |
| 558 |
DO I=iMin,iMax |
| 559 |
array(I,J,K,bi,bj) = array(I,iB,K,biN,bjN) |
| 560 |
ENDDO |
| 561 |
ENDDO |
| 562 |
ENDDO |
| 563 |
ENDIF |
| 564 |
ELSEIF ( _theSimulationMode .EQ. REVERSE_SIMULATION ) THEN |
| 565 |
jMin = sNy-exchWidthY+1 |
| 566 |
jMax = sNy |
| 567 |
iB0 = 1-exchWidthY-1 |
| 568 |
IF ( northCommMode .EQ. COMM_PUT |
| 569 |
& .OR. northCommMode .EQ. COMM_MSG ) THEN |
| 570 |
iB = 0 |
| 571 |
DO K=1,myNz |
| 572 |
DO J=jMin,jMax |
| 573 |
DO I=iMin,iMax |
| 574 |
iB = iB + 1 |
| 575 |
array(I,J,K,bi,bj) = |
| 576 |
& array(I,J,K,bi,bj)+northRecvBuf_RS(iB,eBl,bi,bj) |
| 577 |
ENDDO |
| 578 |
ENDDO |
| 579 |
ENDDO |
| 580 |
ELSEIF ( northCommMode .EQ. COMM_GET ) THEN |
| 581 |
DO K=1,myNz |
| 582 |
iB = iB0 |
| 583 |
DO J=jMin,jMax |
| 584 |
iB = iB+1 |
| 585 |
DO I=iMin,iMax |
| 586 |
array(I,J,K,bi,bj) = |
| 587 |
& array(I,J,K,bi,bj)+array(I,iB,K,biN,bjN) |
| 588 |
ENDDO |
| 589 |
ENDDO |
| 590 |
ENDDO |
| 591 |
ENDIF |
| 592 |
ENDIF |
| 593 |
|
| 594 |
IF ( _theSimulationMode .EQ. FORWARD_SIMULATION ) THEN |
| 595 |
jMin = 1-exchWidthY |
| 596 |
jMax = 0 |
| 597 |
iB0 = sNy-exchWidthY |
| 598 |
IF ( southCommMode .EQ. COMM_PUT |
| 599 |
& .OR. southCommMode .EQ. COMM_MSG ) THEN |
| 600 |
iB = 0 |
| 601 |
DO K=1,myNz |
| 602 |
DO J=jMin,jMax |
| 603 |
DO I=iMin,iMax |
| 604 |
iB = iB + 1 |
| 605 |
array(I,J,K,bi,bj) = southRecvBuf_RS(iB,eBl,bi,bj) |
| 606 |
ENDDO |
| 607 |
ENDDO |
| 608 |
ENDDO |
| 609 |
ELSEIF ( southCommMode .EQ. COMM_GET ) THEN |
| 610 |
DO K=1,myNz |
| 611 |
iB = iB0 |
| 612 |
DO J=jMin,jMax |
| 613 |
iB = iB+1 |
| 614 |
DO I=iMin,iMax |
| 615 |
array(I,J,K,bi,bj) = array(I,iB,K,biS,bjS) |
| 616 |
ENDDO |
| 617 |
ENDDO |
| 618 |
ENDDO |
| 619 |
ENDIF |
| 620 |
ELSEIF ( _theSimulationMode .EQ. REVERSE_SIMULATION ) THEN |
| 621 |
jMin = 1 |
| 622 |
jMax = 1+exchWidthY-1 |
| 623 |
iB0 = sNy |
| 624 |
IF ( southCommMode .EQ. COMM_PUT |
| 625 |
& .OR. southCommMode .EQ. COMM_MSG ) THEN |
| 626 |
iB = 0 |
| 627 |
DO K=1,myNz |
| 628 |
DO J=jMin,jMax |
| 629 |
DO I=iMin,iMax |
| 630 |
iB = iB + 1 |
| 631 |
array(I,J,K,bi,bj) = |
| 632 |
& array(I,J,K,bi,bj)+southRecvBuf_RS(iB,eBl,bi,bj) |
| 633 |
ENDDO |
| 634 |
ENDDO |
| 635 |
ENDDO |
| 636 |
ELSEIF ( southCommMode .EQ. COMM_GET ) THEN |
| 637 |
DO K=1,myNz |
| 638 |
iB = iB0 |
| 639 |
DO J=jMin,jMax |
| 640 |
iB = iB+1 |
| 641 |
DO I=iMin,iMax |
| 642 |
array(I,J,K,bi,bj) = |
| 643 |
& array(I,J,K,bi,bj)+array(I,iB,K,biS,bjS) |
| 644 |
ENDDO |
| 645 |
ENDDO |
| 646 |
ENDDO |
| 647 |
ENDIF |
| 648 |
ENDIF |
| 649 |
|
| 650 |
ENDDO |
| 651 |
ENDDO |
| 652 |
|
| 653 |
RETURN |
| 654 |
END |
| 655 |
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