1 |
cnh |
1.1 |
C $Header: $ |
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 |
97 |
|
|
#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 |
123 |
|
|
theSize = sNx*exchWidthY*myNz |
124 |
|
|
IF ( theCornerMode .EQ. EXCH_UPDATE_CORNERS ) |
125 |
|
|
& 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 |
142 |
|
|
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) |
149 |
|
|
spinCount = 0 |
150 |
|
|
10 CONTINUE |
151 |
|
|
CALL FOOL_THE_COMPILER |
152 |
|
|
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' |
155 |
|
|
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. |
161 |
|
|
C Update statistics |
162 |
|
|
IF ( exchCollectStatistics ) THEN |
163 |
|
|
exchRecvYExchCount(1,bi,bj) = exchRecvYExchCount(1,bi,bj)+1 |
164 |
|
|
exchRecvYSpinCount(1,bi,bj) = exchRecvYSpinCount(1,bi,bj)+spinCount |
165 |
|
|
exchRecvYSpinMax(1,bi,bj) = MAX(exchRecvYSpinMax(1,bi,bj),spinCount) |
166 |
|
|
exchRecvYSpinMin(1,bi,bj) = MIN(exchRecvYSpinMin(1,bi,bj),spinCount) |
167 |
|
|
ENDIF |
168 |
|
|
|
169 |
|
|
|
170 |
|
|
IF ( exchNReqsY(1,bi,bj) .GT. 0 ) THEN |
171 |
|
|
#ifdef ALLOW_USE_MPI |
172 |
|
|
#ifndef ALWAYS_USE_MPI |
173 |
|
|
IF ( usingMPI ) THEN |
174 |
|
|
#endif |
175 |
|
|
CALL MPI_Waitall( exchNReqsY(1,bi,bj), exchReqIdY(1,1,bi,bj), |
176 |
|
|
& mpiStatus, mpiRC ) |
177 |
|
|
#ifndef ALWAYS_USE_MPI |
178 |
|
|
ENDIF |
179 |
|
|
#endif |
180 |
|
|
#endif /* ALLOW_USE_MPI */ |
181 |
|
|
ENDIF |
182 |
|
|
C Clear outstanding requests counter |
183 |
|
|
exchNReqsY(1,bi,bj) = 0 |
184 |
|
|
ENDDO |
185 |
|
|
ENDDO |
186 |
|
|
ENDIF |
187 |
|
|
|
188 |
|
|
C-- Read from the buffers |
189 |
|
|
DO bj=myByLo(myThid),myByHi(myThid) |
190 |
|
|
DO bi=myBxLo(myThid),myBxHi(myThid) |
191 |
|
|
|
192 |
|
|
ebL = exchangeBufLevel(1,bi,bj) |
193 |
|
|
biN = _tileBiN(bi,bj) |
194 |
|
|
bjN = _tileBjN(bi,bj) |
195 |
|
|
biS = _tileBiS(bi,bj) |
196 |
|
|
bjS = _tileBjS(bi,bj) |
197 |
|
|
southCommMode = _tileCommModeS(bi,bj) |
198 |
|
|
northCommMode = _tileCommModeN(bi,bj) |
199 |
|
|
IF ( theCornerMode .EQ. EXCH_UPDATE_CORNERS ) THEN |
200 |
|
|
iMin = 1-exchWidthX |
201 |
|
|
iMax = sNx+exchWidthX |
202 |
|
|
ELSE |
203 |
|
|
iMin = 1 |
204 |
|
|
iMax = sNx |
205 |
|
|
ENDIF |
206 |
|
|
IF ( _theSimulationMode .EQ. FORWARD_SIMULATION ) THEN |
207 |
|
|
jMin = sNy+1 |
208 |
|
|
jMax = sNy+exchWidthY |
209 |
|
|
iB0 = 0 |
210 |
|
|
ELSEIF ( _theSimulationMode .EQ. REVERSE_SIMULATION ) THEN |
211 |
|
|
jMin = sNy-exchWidthY+1 |
212 |
|
|
jMax = sNy |
213 |
|
|
iB0 = 1-exchWidthY-1 |
214 |
|
|
ENDIF |
215 |
|
|
IF ( northCommMode .EQ. COMM_PUT |
216 |
|
|
& .OR. northCommMode .EQ. COMM_MSG ) THEN |
217 |
|
|
iB = 0 |
218 |
|
|
DO K=1,myNz |
219 |
|
|
DO J=jMin,jMax |
220 |
|
|
DO I=iMin,iMax |
221 |
|
|
iB = iB + 1 |
222 |
|
|
array(I,J,K,bi,bj) = northRecvBuf_RL(iB,eBl,bi,bj) |
223 |
|
|
ENDDO |
224 |
|
|
ENDDO |
225 |
|
|
ENDDO |
226 |
|
|
ELSEIF ( northCommMode .EQ. COMM_GET ) THEN |
227 |
|
|
DO K=1,myNz |
228 |
|
|
iB = iB0 |
229 |
|
|
DO J=jMin,jMax |
230 |
|
|
iB = iB+1 |
231 |
|
|
DO I=iMin,iMax |
232 |
|
|
array(I,J,K,bi,bj) = array(I,iB,K,biN,bjN) |
233 |
|
|
ENDDO |
234 |
|
|
ENDDO |
235 |
|
|
ENDDO |
236 |
|
|
ENDIF |
237 |
|
|
IF ( _theSimulationMode .EQ. FORWARD_SIMULATION ) THEN |
238 |
|
|
jMin = 1-exchWidthY |
239 |
|
|
jMax = 0 |
240 |
|
|
iB0 = sNy-exchWidthY |
241 |
|
|
ELSEIF ( _theSimulationMode .EQ. REVERSE_SIMULATION ) THEN |
242 |
|
|
jMin = 1 |
243 |
|
|
jMax = 1+exchWidthY-1 |
244 |
|
|
iB0 = sNy |
245 |
|
|
ENDIF |
246 |
|
|
IF ( southCommMode .EQ. COMM_PUT |
247 |
|
|
& .OR. southCommMode .EQ. COMM_MSG ) THEN |
248 |
|
|
iB = 0 |
249 |
|
|
DO K=1,myNz |
250 |
|
|
DO J=jMin,jMax |
251 |
|
|
DO I=iMin,iMax |
252 |
|
|
iB = iB + 1 |
253 |
|
|
array(I,J,K,bi,bj) = southRecvBuf_RL(iB,eBl,bi,bj) |
254 |
|
|
ENDDO |
255 |
|
|
ENDDO |
256 |
|
|
ENDDO |
257 |
|
|
ELSEIF ( southCommMode .EQ. COMM_GET ) THEN |
258 |
|
|
DO K=1,myNz |
259 |
|
|
iB = iB0 |
260 |
|
|
DO J=jMin,jMax |
261 |
|
|
iB = iB+1 |
262 |
|
|
DO I=iMin,iMax |
263 |
|
|
array(I,J,K,bi,bj) = array(I,iB,K,biS,bjS) |
264 |
|
|
ENDDO |
265 |
|
|
ENDDO |
266 |
|
|
ENDDO |
267 |
|
|
ENDIF |
268 |
|
|
|
269 |
|
|
ENDDO |
270 |
|
|
ENDDO |
271 |
|
|
|
272 |
|
|
RETURN |
273 |
|
|
END |
274 |
|
|
|
275 |
|
|
|
276 |
|
|
SUBROUTINE EXCH_RS_RECV_GET_Y( array, |
277 |
|
|
I myOLw, myOLe, myOLs, myOLn, myNz, |
278 |
|
|
I exchWidthX, exchWidthY, |
279 |
|
|
I theSimulationMode, theCornerMode, myThid ) |
280 |
|
|
C /==========================================================\ |
281 |
|
|
C | SUBROUTINE RECV_GET_Y | |
282 |
|
|
C | o "Send" or "put" Y edges for RS array. | |
283 |
|
|
C |==========================================================| |
284 |
|
|
C | Routine that invokes actual message passing send or | |
285 |
|
|
C | direct "put" of data to update X faces of an XY[R] array.| |
286 |
|
|
C \==========================================================/ |
287 |
|
|
IMPLICIT NONE |
288 |
|
|
|
289 |
|
|
C == Global variables == |
290 |
|
|
#include "SIZE.h" |
291 |
|
|
#include "EEPARAMS.h" |
292 |
|
|
#include "EESUPPORT.h" |
293 |
|
|
#include "EXCH.h" |
294 |
|
|
|
295 |
|
|
C == Routine arguments == |
296 |
|
|
C array - Array with edges to exchange. |
297 |
|
|
C myOLw - West, East, North and South overlap region sizes. |
298 |
|
|
C myOLe |
299 |
|
|
C myOLn |
300 |
|
|
C myOLs |
301 |
|
|
C exchWidthX - Width of data region exchanged. |
302 |
|
|
C exchWidthY |
303 |
|
|
C theSimulationMode - Forward or reverse mode exchange ( provides |
304 |
|
|
C support for adjoint integration of code. ) |
305 |
|
|
C theCornerMode - Flag indicating whether corner updates are |
306 |
|
|
C needed. |
307 |
|
|
C myThid - Thread number of this instance of S/R EXCH... |
308 |
|
|
C eBl - Edge buffer level |
309 |
|
|
INTEGER myOLw |
310 |
|
|
INTEGER myOLe |
311 |
|
|
INTEGER myOLs |
312 |
|
|
INTEGER myOLn |
313 |
|
|
INTEGER myNz |
314 |
|
|
_RS array(1-myOLw:sNx+myOLe, |
315 |
|
|
& 1-myOLs:sNy+myOLn, |
316 |
|
|
& myNZ, nSx, nSy) |
317 |
|
|
INTEGER exchWidthX |
318 |
|
|
INTEGER exchWidthY |
319 |
|
|
INTEGER theSimulationMode |
320 |
|
|
INTEGER theCornerMode |
321 |
|
|
INTEGER myThid |
322 |
|
|
CEndOfInterface |
323 |
|
|
|
324 |
|
|
C == Local variables == |
325 |
|
|
C I, J, K, iMin, iMax, iB - Loop counters and extents |
326 |
|
|
C bi, bj |
327 |
|
|
C biS, bjS - South tile indices |
328 |
|
|
C biN, bjN - North tile indices |
329 |
|
|
C eBl - Current exchange buffer level |
330 |
|
|
C theProc, theTag, theType, - Variables used in message building |
331 |
|
|
C theSize |
332 |
|
|
C southCommMode - Working variables holding type |
333 |
|
|
C northCommMode of communication a particular |
334 |
|
|
C tile face uses. |
335 |
|
|
C spinCount - Exchange statistics counter |
336 |
|
|
INTEGER I, J, K, iMin, iMax, jMin, jMax, iB, iB0 |
337 |
|
|
INTEGER bi, bj, biS, bjS, biN, bjN |
338 |
|
|
INTEGER eBl |
339 |
|
|
INTEGER southCommMode |
340 |
|
|
INTEGER northCommMode |
341 |
|
|
INTEGER spinCount |
342 |
|
|
#ifdef ALLOW_USE_MPI |
343 |
|
|
INTEGER theProc, theTag, theType, theSize |
344 |
|
|
INTEGER mpiStatus(MPI_STATUS_SIZE), mpiRc |
345 |
|
|
#endif |
346 |
|
|
|
347 |
|
|
|
348 |
|
|
C-- Under a "put" scenario we |
349 |
|
|
C-- i. set completetion signal for buffer we put into. |
350 |
|
|
C-- ii. wait for completetion signal indicating data has been put in |
351 |
|
|
C-- our buffer. |
352 |
|
|
C-- Under a messaging mode we "receive" the message. |
353 |
|
|
C-- Under a "get" scenario we |
354 |
|
|
C-- i. Check that the data is ready. |
355 |
|
|
C-- ii. Read the data. |
356 |
|
|
C-- iii. Set data read flag + memory sync. |
357 |
|
|
|
358 |
|
|
|
359 |
|
|
DO bj=myByLo(myThid),myByHi(myThid) |
360 |
|
|
DO bi=myBxLo(myThid),myBxHi(myThid) |
361 |
|
|
ebL = exchangeBufLevel(1,bi,bj) |
362 |
|
|
southCommMode = _tileCommModeS(bi,bj) |
363 |
|
|
northCommMode = _tileCommModeN(bi,bj) |
364 |
|
|
biN = _tileBiN(bi,bj) |
365 |
|
|
bjN = _tileBjN(bi,bj) |
366 |
|
|
biS = _tileBiS(bi,bj) |
367 |
|
|
bjS = _tileBjS(bi,bj) |
368 |
|
|
IF ( southCommMode .EQ. COMM_MSG ) THEN |
369 |
|
|
#ifdef ALLOW_USE_MPI |
370 |
|
|
#ifndef ALWAYS_USE_MPI |
371 |
|
|
IF ( usingMPI ) THEN |
372 |
|
|
#endif |
373 |
|
|
theProc = tilePidS(bi,bj) |
374 |
|
|
theTag = _tileTagRecvS(bi,bj) |
375 |
|
|
theType = MPI_DOUBLE_PRECISION |
376 |
|
|
#ifdef RS_IS_REAL4 |
377 |
|
|
theType = MPI_REAL4 |
378 |
|
|
#endif |
379 |
|
|
theSize = sNx*exchWidthY*myNz |
380 |
|
|
IF ( theCornerMode .EQ. EXCH_UPDATE_CORNERS ) |
381 |
|
|
& theSize = (sNx+2*exchWidthX)*exchWidthY*myNz |
382 |
|
|
CALL MPI_Recv( southRecvBuf_RS(1,eBl,bi,bj), theSize, theType, |
383 |
|
|
& theProc, theTag, MPI_COMM_WORLD, |
384 |
|
|
& mpiStatus, mpiRc ) |
385 |
|
|
#ifndef ALWAYS_USE_MPI |
386 |
|
|
ENDIF |
387 |
|
|
#endif |
388 |
|
|
#endif /* ALLOW_USE_MPI */ |
389 |
|
|
ENDIF |
390 |
|
|
IF ( northCommMode .EQ. COMM_MSG ) THEN |
391 |
|
|
#ifdef ALLOW_USE_MPI |
392 |
|
|
#ifndef ALWAYS_USE_MPI |
393 |
|
|
IF ( usingMPI ) THEN |
394 |
|
|
#endif |
395 |
|
|
theProc = tilePidN(bi,bj) |
396 |
|
|
theTag = _tileTagRecvN(bi,bj) |
397 |
|
|
theType = MPI_DOUBLE_PRECISION |
398 |
|
|
#ifdef RS_IS_REAL4 |
399 |
|
|
theType = MPI_REAL4 |
400 |
|
|
#endif |
401 |
|
|
theSize = sNx*exchWidthY*myNz |
402 |
|
|
IF ( theCornerMode .EQ. EXCH_UPDATE_CORNERS ) |
403 |
|
|
& theSize = (sNx+2*exchWidthX)*exchWidthY*myNz |
404 |
|
|
CALL MPI_Recv( northRecvBuf_RS(1,eBl,bi,bj), theSize, theType, |
405 |
|
|
& theProc, theTag, MPI_COMM_WORLD, |
406 |
|
|
& mpiStatus, mpiRc ) |
407 |
|
|
#ifndef ALWAYS_USE_MPI |
408 |
|
|
ENDIF |
409 |
|
|
#endif |
410 |
|
|
#endif /* ALLOW_USE_MPI */ |
411 |
|
|
ENDIF |
412 |
|
|
ENDDO |
413 |
|
|
ENDDO |
414 |
|
|
|
415 |
|
|
C-- Wait for buffers I am going read to be ready. |
416 |
|
|
IF ( exchUsesBarrier ) THEN |
417 |
|
|
C o On some machines ( T90 ) use system barrier rather than spinning. |
418 |
|
|
CALL BARRIER( myThid ) |
419 |
|
|
ELSE |
420 |
|
|
C o Spin waiting for completetion flag. This avoids a global-lock |
421 |
|
|
C i.e. we only lock waiting for data that we need. |
422 |
|
|
DO bj=myByLo(myThid),myByHi(myThid) |
423 |
|
|
DO bi=myBxLo(myThid),myBxHi(myThid) |
424 |
|
|
ebL = exchangeBufLevel(1,bi,bj) |
425 |
|
|
southCommMode = _tileCommModeS(bi,bj) |
426 |
|
|
northCommMode = _tileCommModeN(bi,bj) |
427 |
|
|
spinCount = 0 |
428 |
|
|
10 CONTINUE |
429 |
|
|
CALL FOOL_THE_COMPILER |
430 |
|
|
spinCount = spinCount+1 |
431 |
|
|
C IF ( myThid .EQ. 1 .AND. spinCount .GT. _EXCH_SPIN_LIMIT ) THEN |
432 |
|
|
C STOP ' S/R EXCH_RECV_GET_Y: spinCount .GT. _EXCH_SPIN_LIMIT' |
433 |
|
|
C ENDIF |
434 |
|
|
IF ( southRecvAck(eBl,bi,bj) .EQ. 0. ) GOTO 10 |
435 |
|
|
IF ( northRecvAck(eBl,bi,bj) .EQ. 0. ) GOTO 10 |
436 |
|
|
C Clear requests |
437 |
|
|
southRecvAck(eBl,bi,bj) = 0. |
438 |
|
|
northRecvAck(eBl,bi,bj) = 0. |
439 |
|
|
C Update statistics |
440 |
|
|
IF ( exchCollectStatistics ) THEN |
441 |
|
|
exchRecvYExchCount(1,bi,bj) = exchRecvYExchCount(1,bi,bj)+1 |
442 |
|
|
exchRecvYSpinCount(1,bi,bj) = exchRecvYSpinCount(1,bi,bj)+spinCount |
443 |
|
|
exchRecvYSpinMax(1,bi,bj) = MAX(exchRecvYSpinMax(1,bi,bj),spinCount) |
444 |
|
|
exchRecvYSpinMin(1,bi,bj) = MIN(exchRecvYSpinMin(1,bi,bj),spinCount) |
445 |
|
|
ENDIF |
446 |
|
|
|
447 |
|
|
|
448 |
|
|
IF ( exchNReqsY(1,bi,bj) .GT. 0 ) THEN |
449 |
|
|
#ifdef ALLOW_USE_MPI |
450 |
|
|
#ifndef ALWAYS_USE_MPI |
451 |
|
|
IF ( usingMPI ) THEN |
452 |
|
|
#endif |
453 |
|
|
CALL MPI_Waitall( exchNReqsY(1,bi,bj), exchReqIdY(1,1,bi,bj), |
454 |
|
|
& mpiStatus, mpiRC ) |
455 |
|
|
#ifndef ALWAYS_USE_MPI |
456 |
|
|
ENDIF |
457 |
|
|
#endif |
458 |
|
|
#endif /* ALLOW_USE_MPI */ |
459 |
|
|
ENDIF |
460 |
|
|
C Clear outstanding requests counter |
461 |
|
|
exchNReqsY(1,bi,bj) = 0 |
462 |
|
|
ENDDO |
463 |
|
|
ENDDO |
464 |
|
|
ENDIF |
465 |
|
|
|
466 |
|
|
C-- Read from the buffers |
467 |
|
|
DO bj=myByLo(myThid),myByHi(myThid) |
468 |
|
|
DO bi=myBxLo(myThid),myBxHi(myThid) |
469 |
|
|
|
470 |
|
|
ebL = exchangeBufLevel(1,bi,bj) |
471 |
|
|
biN = _tileBiN(bi,bj) |
472 |
|
|
bjN = _tileBjN(bi,bj) |
473 |
|
|
biS = _tileBiS(bi,bj) |
474 |
|
|
bjS = _tileBjS(bi,bj) |
475 |
|
|
southCommMode = _tileCommModeS(bi,bj) |
476 |
|
|
northCommMode = _tileCommModeN(bi,bj) |
477 |
|
|
IF ( theCornerMode .EQ. EXCH_UPDATE_CORNERS ) THEN |
478 |
|
|
iMin = 1-exchWidthX |
479 |
|
|
iMax = sNx+exchWidthX |
480 |
|
|
ELSE |
481 |
|
|
iMin = 1 |
482 |
|
|
iMax = sNx |
483 |
|
|
ENDIF |
484 |
|
|
IF ( _theSimulationMode .EQ. FORWARD_SIMULATION ) THEN |
485 |
|
|
jMin = sNy+1 |
486 |
|
|
jMax = sNy+exchWidthY |
487 |
|
|
iB0 = 0 |
488 |
|
|
ELSEIF ( _theSimulationMode .EQ. REVERSE_SIMULATION ) THEN |
489 |
|
|
jMin = sNy-exchWidthY+1 |
490 |
|
|
jMax = sNy |
491 |
|
|
iB0 = 1-exchWidthY-1 |
492 |
|
|
ENDIF |
493 |
|
|
IF ( northCommMode .EQ. COMM_PUT |
494 |
|
|
& .OR. northCommMode .EQ. COMM_MSG ) THEN |
495 |
|
|
iB = 0 |
496 |
|
|
DO K=1,myNz |
497 |
|
|
DO J=jMin,jMax |
498 |
|
|
DO I=iMin,iMax |
499 |
|
|
iB = iB + 1 |
500 |
|
|
array(I,J,K,bi,bj) = northRecvBuf_RS(iB,eBl,bi,bj) |
501 |
|
|
ENDDO |
502 |
|
|
ENDDO |
503 |
|
|
ENDDO |
504 |
|
|
ELSEIF ( northCommMode .EQ. COMM_GET ) THEN |
505 |
|
|
DO K=1,myNz |
506 |
|
|
iB = iB0 |
507 |
|
|
DO J=jMin,jMax |
508 |
|
|
iB = iB+1 |
509 |
|
|
DO I=iMin,iMax |
510 |
|
|
array(I,J,K,bi,bj) = array(I,iB,K,biN,bjN) |
511 |
|
|
ENDDO |
512 |
|
|
ENDDO |
513 |
|
|
ENDDO |
514 |
|
|
ENDIF |
515 |
|
|
IF ( _theSimulationMode .EQ. FORWARD_SIMULATION ) THEN |
516 |
|
|
jMin = 1-exchWidthY |
517 |
|
|
jMax = 0 |
518 |
|
|
iB0 = sNy-exchWidthY |
519 |
|
|
ELSEIF ( _theSimulationMode .EQ. REVERSE_SIMULATION ) THEN |
520 |
|
|
jMin = 1 |
521 |
|
|
jMax = 1+exchWidthY-1 |
522 |
|
|
iB0 = sNy |
523 |
|
|
ENDIF |
524 |
|
|
IF ( southCommMode .EQ. COMM_PUT |
525 |
|
|
& .OR. southCommMode .EQ. COMM_MSG ) THEN |
526 |
|
|
iB = 0 |
527 |
|
|
DO K=1,myNz |
528 |
|
|
DO J=jMin,jMax |
529 |
|
|
DO I=iMin,iMax |
530 |
|
|
iB = iB + 1 |
531 |
|
|
array(I,J,K,bi,bj) = southRecvBuf_RS(iB,eBl,bi,bj) |
532 |
|
|
ENDDO |
533 |
|
|
ENDDO |
534 |
|
|
ENDDO |
535 |
|
|
ELSEIF ( southCommMode .EQ. COMM_GET ) THEN |
536 |
|
|
DO K=1,myNz |
537 |
|
|
iB = iB0 |
538 |
|
|
DO J=jMin,jMax |
539 |
|
|
iB = iB+1 |
540 |
|
|
DO I=iMin,iMax |
541 |
|
|
array(I,J,K,bi,bj) = array(I,iB,K,biS,bjS) |
542 |
|
|
ENDDO |
543 |
|
|
ENDDO |
544 |
|
|
ENDDO |
545 |
|
|
ENDIF |
546 |
|
|
|
547 |
|
|
ENDDO |
548 |
|
|
ENDDO |
549 |
|
|
|
550 |
|
|
RETURN |
551 |
|
|
END |
552 |
|
|
|