1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
|
/*
* Copyright (C) by Argonne National Laboratory
* See COPYRIGHT in top-level directory
*/
#include "adio.h"
#include "adio_extern.h"
#include "ad_tuning.h"
#include "../ad_gpfs/ad_gpfs_tuning.h"
#include <pthread.h>
/* #define p2pcontigtrace 1 */
void ADIOI_P2PContigWriteAggregation(ADIO_File fd,
const void *buf,
int *error_code,
ADIO_Offset * st_offsets,
ADIO_Offset * end_offsets,
ADIO_Offset * fd_start, ADIO_Offset * fd_end)
{
*error_code = MPI_SUCCESS; /* initialize to success */
#ifdef ROMIO_GPFS
double startTimeBase, endTimeBase;
#endif
MPI_Status status;
pthread_t io_thread;
void *thread_ret;
ADIOI_IO_ThreadFuncData io_thread_args;
int nprocs, myrank;
MPI_Comm_size(fd->comm, &nprocs);
MPI_Comm_rank(fd->comm, &myrank);
/* Initialize to self here to avoid uninitialized warnings. */
io_thread = pthread_self();
ADIO_Offset myOffsetStart = st_offsets[myrank], myOffsetEnd = end_offsets[myrank];
int myAggRank = -1; /* if I am an aggregor this is my index into fd->hints->ranklist */
int iAmUsedAgg = 0;
#ifdef ROMIO_GPFS
startTimeBase = MPI_Wtime();
#endif
int naggs = fd->hints->cb_nodes;
int coll_bufsize = fd->hints->cb_buffer_size;
#ifdef ROMIO_GPFS
if (gpfsmpio_pthreadio == 1) {
/* split buffer in half for a kind of double buffering with the threads */
coll_bufsize = fd->hints->cb_buffer_size / 2;
}
#endif
int j;
for (j = 0; j < naggs; j++) {
if (fd->hints->ranklist[j] == myrank) {
myAggRank = j;
if (fd_end[j] > fd_start[j]) {
iAmUsedAgg = 1;
}
}
}
/* Determine how much data and to whom I need to send. For source proc
* targets, also determine the target file domain offsets locally to
* reduce communication overhead */
int *targetAggsForMyData = (int *) ADIOI_Malloc(naggs * sizeof(int));
ADIO_Offset *targetAggsForMyDataFDStart =
(ADIO_Offset *) ADIOI_Malloc(naggs * sizeof(ADIO_Offset));
ADIO_Offset *targetAggsForMyDataFDEnd =
(ADIO_Offset *) ADIOI_Malloc(naggs * sizeof(ADIO_Offset));
int numTargetAggs = 0;
int i;
for (i = 0; i < naggs; i++) {
if (((myOffsetStart >= fd_start[i]) && (myOffsetStart <= fd_end[i])) ||
((myOffsetEnd >= fd_start[i]) && (myOffsetEnd <= fd_end[i]))) {
targetAggsForMyData[numTargetAggs] = fd->hints->ranklist[i];
targetAggsForMyDataFDStart[numTargetAggs] = fd_start[i];
targetAggsForMyDataFDEnd[numTargetAggs] = fd_end[i];
numTargetAggs++;
}
}
/* these 3 arrays track info on the procs that feed an aggregtor */
int *sourceProcsForMyData = NULL;
int *remainingDataAmountToGetPerProc = NULL;
ADIO_Offset *remainingDataOffsetToGetPerProc = NULL;
int numSourceProcs = 0;
if (iAmUsedAgg) { /* for the used aggregators figure out how much data I
* need from what procs */
/* count numSourceProcs so we know how large to make the arrays */
for (i = 0; i < nprocs; i++)
if (((st_offsets[i] >= fd_start[myAggRank]) && (st_offsets[i] <= fd_end[myAggRank])) ||
((end_offsets[i] >= fd_start[myAggRank]) && (end_offsets[i] <= fd_end[myAggRank])))
numSourceProcs++;
sourceProcsForMyData = (int *) ADIOI_Malloc(numSourceProcs * sizeof(int));
remainingDataAmountToGetPerProc = (int *) ADIOI_Malloc(numSourceProcs * sizeof(int));
remainingDataOffsetToGetPerProc =
(ADIO_Offset *) ADIOI_Malloc(numSourceProcs * sizeof(ADIO_Offset));
/* everybody has the st_offsets and end_offsets for all ranks so if I am a
* used aggregator go thru them and figure out which ranks have data that
* falls into my file domain assigned to me */
numSourceProcs = 0;
for (i = 0; i < nprocs; i++) {
if (((st_offsets[i] >= fd_start[myAggRank]) && (st_offsets[i] <= fd_end[myAggRank])) ||
((end_offsets[i] >= fd_start[myAggRank]) &&
(end_offsets[i] <= fd_end[myAggRank]))) {
sourceProcsForMyData[numSourceProcs] = i;
if (((st_offsets[i] >= fd_start[myAggRank]) && (st_offsets[i] <= fd_end[myAggRank]))
&& ((end_offsets[i] >= fd_start[myAggRank]) &&
(end_offsets[i] <= fd_end[myAggRank]))) {
remainingDataAmountToGetPerProc[numSourceProcs] =
(end_offsets[i] - st_offsets[i]) + 1;
remainingDataOffsetToGetPerProc[numSourceProcs] = st_offsets[i];
} else if ((st_offsets[i] >= fd_start[myAggRank]) && (st_offsets[i] <= fd_end[myAggRank])) { /* starts in this fd and goes past it */
remainingDataAmountToGetPerProc[numSourceProcs] =
(fd_end[myAggRank] - st_offsets[i]) + 1;
remainingDataOffsetToGetPerProc[numSourceProcs] = st_offsets[i];
} else { /* starts in fd before this and ends in it */
remainingDataAmountToGetPerProc[numSourceProcs] =
(end_offsets[i] - fd_start[myAggRank]) + 1;
remainingDataOffsetToGetPerProc[numSourceProcs] = fd_start[myAggRank];
}
#ifdef p2pcontigtrace
printf
("getting %ld bytes from source proc %d in fd rank %d with borders %ld to %ld\n",
remainingDataAmountToGetPerProc[numSourceProcs], i,
fd->hints->ranklist[myAggRank], fd_start[myAggRank], fd_end[myAggRank]);
#endif
numSourceProcs++;
}
}
}
int *amountOfDataReqestedByTargetAgg = (int *) ADIOI_Malloc(naggs * sizeof(int));
for (i = 0; i < numTargetAggs; i++) {
amountOfDataReqestedByTargetAgg[i] = 0;
}
int totalAmountDataReceived = 0;
MPI_Request *mpiSizeToSendRequest =
(MPI_Request *) ADIOI_Malloc(numTargetAggs * sizeof(MPI_Request));
MPI_Request *mpiRecvDataRequest =
(MPI_Request *) ADIOI_Malloc(numSourceProcs * sizeof(MPI_Request));
MPI_Request *mpiSendDataSizeRequest =
(MPI_Request *) ADIOI_Malloc(numSourceProcs * sizeof(MPI_Request));
MPI_Request *mpiSendDataToTargetAggRequest =
(MPI_Request *) ADIOI_Malloc(numTargetAggs * sizeof(MPI_Request));
MPI_Status mpiWaitAnyStatusFromTargetAggs, mpiWaitAnyStatusFromSourceProcs;
MPI_Status mpiIsendStatusForSize, mpiIsendStatusForData;
/* use the write buffer allocated in the file_open */
char *write_buf0 = fd->io_buf;
char *write_buf1 = fd->io_buf + coll_bufsize;
/* start off pointing to the first buffer. If we use the 2nd buffer (threaded
* case) we'll swap later */
char *write_buf = write_buf0;
/* compute number of rounds */
ADIO_Offset numberOfRounds =
(ADIO_Offset) ((((ADIO_Offset) (end_offsets[nprocs - 1] - st_offsets[0])) /
((ADIO_Offset) ((ADIO_Offset) coll_bufsize * (ADIO_Offset) naggs)))) + 1;
int currentWriteBuf = 0;
int useIOBuffer = 0;
#ifdef ROMIO_GPFS
if (gpfsmpio_pthreadio && (numberOfRounds > 1)) {
useIOBuffer = 1;
}
#endif
ADIO_Offset currentRoundFDStart = 0;
ADIO_Offset currentRoundFDEnd = 0;
if (iAmUsedAgg) {
currentRoundFDStart = fd_start[myAggRank];
}
int *dataSizeGottenThisRoundPerProc = (int *) ADIOI_Malloc(numSourceProcs * sizeof(int));
int *mpiRequestMapPerProc = (int *) ADIOI_Malloc(numSourceProcs * sizeof(int));
int *targetAggIndexesForMyDataThisRound = (int *) ADIOI_Malloc(numTargetAggs * sizeof(int));
int *sendBufferOffsetsThisRound = (int *) ADIOI_Malloc(numTargetAggs * sizeof(int));
int *bufferAmountsToSendThisRound = (int *) ADIOI_Malloc(numTargetAggs * sizeof(int));
#ifdef ROMIO_GPFS
endTimeBase = MPI_Wtime();
gpfsmpio_prof_cw[GPFSMPIO_CIO_T_MYREQ] += (endTimeBase - startTimeBase);
startTimeBase = MPI_Wtime();
#endif
/* each iteration of this loop writes a coll_bufsize portion of the file
* domain */
int roundIter;
for (roundIter = 0; roundIter < numberOfRounds; roundIter++) {
/* determine what target aggs I need to send data to this round */
int numTargetAggsThisRound = 0;
for (i = 0; i < numTargetAggs; i++) {
if (((myOffsetStart >= targetAggsForMyDataFDStart[i]) &&
(myOffsetStart <= targetAggsForMyDataFDEnd[i])) ||
((myOffsetEnd >= targetAggsForMyDataFDStart[i]) &&
(myOffsetEnd <= targetAggsForMyDataFDEnd[i]))) {
/* we know that we need to send data to this target agg at some point, now need to figure out how much this round */
/* here are the offsets currently being collected by the aggregator during this round */
ADIO_Offset currentRoundFDStartForMyTargetAgg =
(ADIO_Offset) ((ADIO_Offset) targetAggsForMyDataFDStart[i] +
(ADIO_Offset) ((ADIO_Offset) roundIter *
(ADIO_Offset) coll_bufsize));
ADIO_Offset currentRoundFDEndForMyTargetAgg =
(ADIO_Offset) ((ADIO_Offset) targetAggsForMyDataFDStart[i] +
(ADIO_Offset) ((ADIO_Offset) (roundIter + 1) *
(ADIO_Offset) coll_bufsize) - (ADIO_Offset) 1);
if (currentRoundFDEndForMyTargetAgg > targetAggsForMyDataFDEnd[i])
currentRoundFDEndForMyTargetAgg = targetAggsForMyDataFDEnd[i];
#ifdef p2pcontigtrace
printf
("roundIter %d target iter %d targetAggsForMyData is %d myOffsetStart is %ld myOffsetEnd is %ld targetAggsForMyDataFDStart is %ld targetAggsForMyDataFDEnd is %ld currentRoundFDStartForMyTargetAgg is %ld currentRoundFDEndForMyTargetAgg is %ld\n",
roundIter, i, targetAggsForMyData[i], myOffsetStart, myOffsetEnd,
targetAggsForMyDataFDStart[i], targetAggsForMyDataFDEnd[i],
currentRoundFDStartForMyTargetAgg, currentRoundFDEndForMyTargetAgg);
#endif
/* send the portion of my data that is within
* currentRoundFDStartForMyTargetAgg to
* currentRoundFDEndForMyTargetAgg */
/* find the offset into the send buffer and the amount
* of data to send */
int sendBufferOffset = 0;
int bufferAmountToSend = 0;
if ((myOffsetStart >= currentRoundFDStartForMyTargetAgg) &&
(myOffsetStart <= currentRoundFDEndForMyTargetAgg)) {
if (myOffsetEnd > currentRoundFDEndForMyTargetAgg)
bufferAmountToSend = (currentRoundFDEndForMyTargetAgg - myOffsetStart) + 1;
else
bufferAmountToSend = (myOffsetEnd - myOffsetStart) + 1;
} else if ((myOffsetEnd >= currentRoundFDStartForMyTargetAgg) &&
(myOffsetEnd <= currentRoundFDEndForMyTargetAgg)) {
sendBufferOffset = (int) (currentRoundFDStartForMyTargetAgg - myOffsetStart);
if (myOffsetEnd > currentRoundFDEndForMyTargetAgg)
bufferAmountToSend =
(currentRoundFDEndForMyTargetAgg - currentRoundFDStartForMyTargetAgg) +
1;
else
bufferAmountToSend = (myOffsetEnd - currentRoundFDStartForMyTargetAgg) + 1;
} else if ((myOffsetStart <= currentRoundFDStartForMyTargetAgg) &&
(myOffsetEnd >= currentRoundFDEndForMyTargetAgg)) {
sendBufferOffset = (int) (currentRoundFDStartForMyTargetAgg - myOffsetStart);
bufferAmountToSend =
(currentRoundFDEndForMyTargetAgg - currentRoundFDStartForMyTargetAgg) + 1;
}
if (bufferAmountToSend > 0) { /* we have data to send this round */
targetAggIndexesForMyDataThisRound[numTargetAggsThisRound] = i;
sendBufferOffsetsThisRound[numTargetAggsThisRound] = sendBufferOffset;
bufferAmountsToSendThisRound[numTargetAggsThisRound] = bufferAmountToSend;
#ifdef p2pcontigtrace
printf("bufferAmountToSend is %d sendBufferOffset is %d\n", bufferAmountToSend,
sendBufferOffset);
#endif
/* only need to be pinged by the agg for rounds after the first one - for the first one just
* send the data without being pinged */
if (roundIter > 0)
MPI_Irecv(&amountOfDataReqestedByTargetAgg[numTargetAggsThisRound], 1,
MPI_INT, targetAggsForMyData[i], 0,
fd->comm, &mpiSizeToSendRequest[numTargetAggsThisRound]);
numTargetAggsThisRound++;
}
}
}
/* determine what offsets define the portion of the file domain the agg is writing this round */
if (iAmUsedAgg) {
if ((fd_end[myAggRank] - currentRoundFDStart) < coll_bufsize) {
currentRoundFDEnd = fd_end[myAggRank];
} else
currentRoundFDEnd = currentRoundFDStart + coll_bufsize - 1;
#ifdef p2pcontigtrace
printf
("currentRoundFDStart is %ld currentRoundFDEnd is %ld within file domeain %ld to %ld\n",
currentRoundFDStart, currentRoundFDEnd, fd_start[myAggRank], fd_end[myAggRank]);
#endif
}
int irecv, isend;
int numSourceProcsSentData = 0;
/* the aggs send the amount of data they need to their source procs */
for (i = 0; i < numSourceProcs; i++) {
if ((remainingDataOffsetToGetPerProc[i] >= currentRoundFDStart) &&
(remainingDataOffsetToGetPerProc[i] <= currentRoundFDEnd)) {
if ((remainingDataOffsetToGetPerProc[i] + remainingDataAmountToGetPerProc[i]) <=
currentRoundFDEnd)
dataSizeGottenThisRoundPerProc[i] = remainingDataAmountToGetPerProc[i];
else
dataSizeGottenThisRoundPerProc[i] =
(currentRoundFDEnd - remainingDataOffsetToGetPerProc[i]) + 1;
} else
if (((remainingDataOffsetToGetPerProc[i] + remainingDataAmountToGetPerProc[i]) >=
currentRoundFDStart) &&
((remainingDataOffsetToGetPerProc[i] + remainingDataAmountToGetPerProc[i]) <=
currentRoundFDEnd)) {
if ((remainingDataOffsetToGetPerProc[i]) >= currentRoundFDStart)
dataSizeGottenThisRoundPerProc[i] = remainingDataAmountToGetPerProc[i];
else
dataSizeGottenThisRoundPerProc[i] =
(remainingDataOffsetToGetPerProc[i] - currentRoundFDStart) + 1;
} else
dataSizeGottenThisRoundPerProc[i] = 0;
#ifdef p2pcontigtrace
printf
("dataSizeGottenThisRoundPerProc[%d] set to %d - remainingDataOffsetToGetPerProc is %d remainingDataAmountToGetPerProc is %d currentRoundFDStart is %d currentRoundFDEnd is %d\n",
i, dataSizeGottenThisRoundPerProc[i], remainingDataOffsetToGetPerProc[i],
remainingDataAmountToGetPerProc[i], currentRoundFDStart, currentRoundFDEnd);
#endif
if (dataSizeGottenThisRoundPerProc[i] > 0) {
if (roundIter > 0) {
MPI_Isend(&dataSizeGottenThisRoundPerProc[i], 1, MPI_INT,
sourceProcsForMyData[i], 0, fd->comm,
&mpiSendDataSizeRequest[numSourceProcsSentData]);
numSourceProcsSentData++;
}
}
}
int numDataSendToWaitFor = 0;
/* the source procs send the requested data to the aggs */
for (i = 0; i < numTargetAggsThisRound; i++) {
/* the source procs aren't pinged by the target aggs on the first round */
if (roundIter > 0) {
MPI_Waitany(numTargetAggsThisRound, mpiSizeToSendRequest,
&irecv, &mpiWaitAnyStatusFromTargetAggs);
#ifdef p2pcontigtrace
printf
("irecv is %d amountOfDataReqestedByTargetAgg is %d bufferAmountsToSendThisRound is %d sendBufferOffsetsThisRound is %d targetAggsForMyData is %d\n",
irecv, amountOfDataReqestedByTargetAgg[irecv],
bufferAmountsToSendThisRound[irecv], sendBufferOffsetsThisRound[irecv],
targetAggsForMyData[targetAggIndexesForMyDataThisRound[irecv]]);
#endif
ADIOI_Assert(amountOfDataReqestedByTargetAgg[irecv] ==
bufferAmountsToSendThisRound[irecv]);
MPI_Isend(&((char *) buf)[sendBufferOffsetsThisRound[irecv]],
bufferAmountsToSendThisRound[irecv], MPI_BYTE,
targetAggsForMyData[targetAggIndexesForMyDataThisRound[irecv]], 0,
fd->comm, &mpiSendDataToTargetAggRequest[irecv]);
} else {
#ifdef p2pcontigtrace
printf
("i is %d bufferAmountsToSendThisRound is %d sendBufferOffsetsThisRound is %d targetAggsForMyData is %d\n",
i, bufferAmountsToSendThisRound[i], sendBufferOffsetsThisRound[i],
targetAggsForMyData[targetAggIndexesForMyDataThisRound[i]]);
#endif
MPI_Isend(&((char *) buf)[sendBufferOffsetsThisRound[i]],
bufferAmountsToSendThisRound[i], MPI_BYTE,
targetAggsForMyData[targetAggIndexesForMyDataThisRound[i]], 0, fd->comm,
&mpiSendDataToTargetAggRequest[i]);
}
numDataSendToWaitFor++;
}
#ifdef ROMIO_GPFS
gpfsmpio_prof_cw[GPFSMPIO_CIO_T_DEXCH_SETUP] += (endTimeBase - startTimeBase);
startTimeBase = MPI_Wtime();
#endif
/* the aggs receive the data from the source procs */
int numDataRecvToWaitFor = 0;
for (i = 0; i < numSourceProcs; i++) {
int currentWBOffset = 0;
for (j = 0; j < i; j++)
currentWBOffset += dataSizeGottenThisRoundPerProc[j];
/* only receive from source procs that will send > 0 count data */
if (dataSizeGottenThisRoundPerProc[i] > 0) {
#ifdef p2pcontigtrace
printf
("receiving data from rank %d dataSizeGottenThisRoundPerProc is %d currentWBOffset is %d\n",
sourceProcsForMyData[i], dataSizeGottenThisRoundPerProc[i], currentWBOffset);
#endif
MPI_Irecv(&((char *) write_buf)[currentWBOffset], dataSizeGottenThisRoundPerProc[i],
MPI_BYTE, sourceProcsForMyData[i], 0,
fd->comm, &mpiRecvDataRequest[numDataRecvToWaitFor]);
mpiRequestMapPerProc[numDataRecvToWaitFor] = i;
numDataRecvToWaitFor++;
}
#ifdef p2pcontigtrace
printf("MPI_Irecv from rank %d\n", targetAggsForMyData[i]);
#endif
}
int totalDataReceivedThisRound = 0;
for (i = 0; i < numDataRecvToWaitFor; i++) {
MPI_Waitany(numDataRecvToWaitFor, mpiRecvDataRequest,
&irecv, &mpiWaitAnyStatusFromSourceProcs);
totalDataReceivedThisRound +=
dataSizeGottenThisRoundPerProc[mpiRequestMapPerProc[irecv]];
totalAmountDataReceived += dataSizeGottenThisRoundPerProc[mpiRequestMapPerProc[irecv]];
#ifdef p2pcontigtrace
printf
("numDataRecvToWaitFor is %d was sent %d bytes data for %d remaining bytes from rank %d irecv index %d\n",
numDataRecvToWaitFor, dataSizeGottenThisRoundPerProc[mpiRequestMapPerProc[irecv]],
remainingDataAmountToGetPerProc[mpiRequestMapPerProc[irecv]],
sourceProcsForMyData[mpiRequestMapPerProc[irecv]], irecv);
#endif
remainingDataAmountToGetPerProc[mpiRequestMapPerProc[irecv]] -=
dataSizeGottenThisRoundPerProc[mpiRequestMapPerProc[irecv]];
remainingDataOffsetToGetPerProc[mpiRequestMapPerProc[irecv]] +=
dataSizeGottenThisRoundPerProc[mpiRequestMapPerProc[irecv]];
}
/* clean up the MPI_Request object for the MPI_Isend which told the
* source procs how much data to send */
for (i = 0; i < numSourceProcsSentData; i++) {
MPI_Waitany(numSourceProcsSentData, mpiSendDataSizeRequest,
&isend, &mpiIsendStatusForSize);
}
#ifdef ROMIO_GPFS
endTimeBase = MPI_Wtime();
gpfsmpio_prof_cw[GPFSMPIO_CIO_T_DEXCH_NET] += (endTimeBase - startTimeBase);
#endif
/* the aggs now write the data */
if (numDataRecvToWaitFor > 0) {
#ifdef p2pcontigtrace
printf("totalDataReceivedThisRound is %d\n", totalDataReceivedThisRound);
#endif
if (!useIOBuffer) {
ADIO_WriteContig(fd, write_buf, (int) totalDataReceivedThisRound,
MPI_BYTE, ADIO_EXPLICIT_OFFSET,
currentRoundFDStart, &status, error_code);
} else { /* use the thread writer */
if (!pthread_equal(io_thread, pthread_self())) {
pthread_join(io_thread, &thread_ret);
*error_code = *(int *) thread_ret;
if (*error_code != MPI_SUCCESS)
return;
io_thread = pthread_self();
}
io_thread_args.fd = fd;
/* do a little pointer shuffling: background I/O works from one
* buffer while two-phase machinery fills up another */
if (currentWriteBuf == 0) {
io_thread_args.buf = write_buf0;
currentWriteBuf = 1;
write_buf = write_buf1;
} else {
io_thread_args.buf = write_buf1;
currentWriteBuf = 0;
write_buf = write_buf0;
}
io_thread_args.io_kind = ADIOI_WRITE;
io_thread_args.size = totalDataReceivedThisRound;
io_thread_args.offset = currentRoundFDStart;
io_thread_args.status = &status;
io_thread_args.error_code = *error_code;
if ((pthread_create(&io_thread, NULL,
ADIOI_IO_Thread_Func, &(io_thread_args))) != 0)
io_thread = pthread_self();
}
}
/* numDataRecvToWaitFor > 0 */
if (iAmUsedAgg)
currentRoundFDStart += coll_bufsize;
for (i = 0; i < numDataSendToWaitFor; i++) {
MPI_Wait(&mpiSendDataToTargetAggRequest[i], &mpiIsendStatusForData);
}
} /* for-loop roundIter */
#ifdef ROMIO_GPFS
endTimeBase = MPI_Wtime();
gpfsmpio_prof_cw[GPFSMPIO_CIO_T_DEXCH] += (endTimeBase - startTimeBase);
#endif
if (useIOBuffer) { /* thread writer cleanup */
if (!pthread_equal(io_thread, pthread_self())) {
pthread_join(io_thread, &thread_ret);
*error_code = *(int *) thread_ret;
}
}
if (iAmUsedAgg) {
ADIOI_Free(sourceProcsForMyData);
ADIOI_Free(remainingDataAmountToGetPerProc);
ADIOI_Free(remainingDataOffsetToGetPerProc);
}
ADIOI_Free(targetAggsForMyData);
ADIOI_Free(targetAggsForMyDataFDStart);
ADIOI_Free(targetAggsForMyDataFDEnd);
ADIOI_Free(targetAggIndexesForMyDataThisRound);
ADIOI_Free(sendBufferOffsetsThisRound);
ADIOI_Free(bufferAmountsToSendThisRound);
ADIOI_Free(amountOfDataReqestedByTargetAgg);
ADIOI_Free(mpiSizeToSendRequest);
ADIOI_Free(mpiRecvDataRequest);
ADIOI_Free(mpiSendDataSizeRequest);
ADIOI_Free(mpiSendDataToTargetAggRequest);
ADIOI_Free(dataSizeGottenThisRoundPerProc);
ADIOI_Free(mpiRequestMapPerProc);
/* TODO: still need a barrier here? */
MPI_Barrier(fd->comm);
return;
}
void ADIOI_P2PContigReadAggregation(ADIO_File fd,
const void *buf,
int *error_code,
ADIO_Offset * st_offsets,
ADIO_Offset * end_offsets,
ADIO_Offset * fd_start, ADIO_Offset * fd_end)
{
*error_code = MPI_SUCCESS; /* initialize to success */
#ifdef ROMIO_GPFS
double startTimeBase, endTimeBase;
#endif
MPI_Status status;
pthread_t io_thread;
void *thread_ret;
ADIOI_IO_ThreadFuncData io_thread_args;
#ifdef ROMIO_GPFS
startTimeBase = MPI_Wtime();
#endif
int nprocs, myrank;
MPI_Comm_size(fd->comm, &nprocs);
MPI_Comm_rank(fd->comm, &myrank);
/* Initialize to self here to avoid uninitialized warnings. */
io_thread = pthread_self();
ADIO_Offset myOffsetStart = st_offsets[myrank], myOffsetEnd = end_offsets[myrank];
int myAggRank = -1; /* if I am an aggregor this is my index into fd->hints->ranklist */
int iAmUsedAgg = 0;
int naggs = fd->hints->cb_nodes;
int coll_bufsize = fd->hints->cb_buffer_size;
#ifdef ROMIO_GPFS
if (gpfsmpio_pthreadio == 1)
/* share buffer between working threads */
coll_bufsize = coll_bufsize / 2;
#endif
int j;
for (j = 0; j < naggs; j++) {
if (fd->hints->ranklist[j] == myrank) {
myAggRank = j;
if (fd_end[j] > fd_start[j]) {
iAmUsedAgg = 1;
}
}
}
/* for my offset range determine how much data and from whom I need to get
* it. For source ag targets, also determine the source file domain
* offsets locally to reduce communication overhead */
int *sourceAggsForMyData = (int *) ADIOI_Malloc(naggs * sizeof(int));
ADIO_Offset *sourceAggsForMyDataFDStart =
(ADIO_Offset *) ADIOI_Malloc(naggs * sizeof(ADIO_Offset));
ADIO_Offset *sourceAggsForMyDataFDEnd =
(ADIO_Offset *) ADIOI_Malloc(naggs * sizeof(ADIO_Offset));
int numSourceAggs = 0;
int i;
for (i = 0; i < naggs; i++) {
if (((myOffsetStart >= fd_start[i]) && (myOffsetStart <= fd_end[i])) ||
((myOffsetEnd >= fd_start[i]) && (myOffsetEnd <= fd_end[i]))) {
sourceAggsForMyData[numSourceAggs] = fd->hints->ranklist[i];
sourceAggsForMyDataFDStart[numSourceAggs] = fd_start[i];
sourceAggsForMyDataFDEnd[numSourceAggs] = fd_end[i];
numSourceAggs++;
}
}
/* these 3 arrays track info on the procs that are fed from an aggregtor -
* to sacrifice some performance at setup to save on memory instead of
* using max size of nprocs for the arrays could determine exact size first
* and then allocate that size */
int *targetProcsForMyData = NULL;
int *remainingDataAmountToSendPerProc = NULL;
ADIO_Offset *remainingDataOffsetToSendPerProc = NULL;
int numTargetProcs = 0;
if (iAmUsedAgg) {
/* for the used aggregators figure out how much data I need from what procs */
/* count numTargetProcs so we know how large to make the arrays */
for (i = 0; i < nprocs; i++)
if (((st_offsets[i] >= fd_start[myAggRank]) &&
(st_offsets[i] <= fd_end[myAggRank])) ||
((end_offsets[i] >= fd_start[myAggRank]) && (end_offsets[i] <= fd_end[myAggRank])))
numTargetProcs++;
targetProcsForMyData = (int *) ADIOI_Malloc(numTargetProcs * sizeof(int));
remainingDataAmountToSendPerProc = (int *) ADIOI_Malloc(numTargetProcs * sizeof(int));
remainingDataOffsetToSendPerProc =
(ADIO_Offset *) ADIOI_Malloc(numTargetProcs * sizeof(ADIO_Offset));
/* everybody has the st_offsets and end_offsets for all ranks so if I am a
* used aggregator go thru them and figure out which ranks have data that
* falls into my file domain assigned to me */
numTargetProcs = 0;
for (i = 0; i < nprocs; i++) {
if (((st_offsets[i] >= fd_start[myAggRank]) && (st_offsets[i] <= fd_end[myAggRank])) ||
((end_offsets[i] >= fd_start[myAggRank]) &&
(end_offsets[i] <= fd_end[myAggRank]))) {
targetProcsForMyData[numTargetProcs] = i;
if (((st_offsets[i] >= fd_start[myAggRank]) && (st_offsets[i] <= fd_end[myAggRank]))
&& ((end_offsets[i] >= fd_start[myAggRank]) &&
(end_offsets[i] <= fd_end[myAggRank]))) {
remainingDataAmountToSendPerProc[numTargetProcs] =
(end_offsets[i] - st_offsets[i]) + 1;
remainingDataOffsetToSendPerProc[numTargetProcs] = st_offsets[i];
} else if ((st_offsets[i] >= fd_start[myAggRank]) && (st_offsets[i] <= fd_end[myAggRank])) { /* starts in this fd and goes past it */
remainingDataAmountToSendPerProc[numTargetProcs] =
(fd_end[myAggRank] - st_offsets[i]) + 1;
remainingDataOffsetToSendPerProc[numTargetProcs] = st_offsets[i];
} else { /* starts in fd before this and ends in it */
remainingDataAmountToSendPerProc[numTargetProcs] =
(end_offsets[i] - fd_start[myAggRank]) + 1;
remainingDataOffsetToSendPerProc[numTargetProcs] = fd_start[myAggRank];
}
numTargetProcs++;
}
}
}
MPI_Request *mpiRecvDataFromSourceAggsRequest =
(MPI_Request *) ADIOI_Malloc(numSourceAggs * sizeof(MPI_Request));
MPI_Request *mpiSendDataToTargetProcRequest =
(MPI_Request *) ADIOI_Malloc(numTargetProcs * sizeof(MPI_Request));
MPI_Status mpiWaitAnyStatusFromSourceProcs, mpiIsendStatusForData;
/* use the two-phase buffer allocated in the file_open - no app should ever
* be both reading and writing at the same time */
char *read_buf0 = fd->io_buf;
char *read_buf1 = fd->io_buf + coll_bufsize;
/* if threaded i/o selected, we'll do a kind of double buffering */
char *read_buf = read_buf0;
/* compute number of rounds */
ADIO_Offset numberOfRounds =
(ADIO_Offset) ((((ADIO_Offset) (end_offsets[nprocs - 1] - st_offsets[0])) /
((ADIO_Offset) ((ADIO_Offset) coll_bufsize * (ADIO_Offset) naggs)))) + 1;
ADIO_Offset currentRoundFDStart = 0, nextRoundFDStart = 0;
ADIO_Offset currentRoundFDEnd = 0, nextRoundFDEnd = 0;
if (iAmUsedAgg) {
currentRoundFDStart = fd_start[myAggRank];
nextRoundFDStart = fd_start[myAggRank];
}
int *dataSizeSentThisRoundPerProc = (int *) ADIOI_Malloc(numTargetProcs * sizeof(int));
int *sourceAggIndexesForMyDataThisRound = (int *) ADIOI_Malloc(numSourceAggs * sizeof(int));
int *recvBufferOffsetsThisRound = (int *) ADIOI_Malloc(numSourceAggs * sizeof(int));
int *bufferAmountsToGetThisRound = (int *) ADIOI_Malloc(numSourceAggs * sizeof(int));
*error_code = MPI_SUCCESS;
int currentReadBuf = 0;
int useIOBuffer = 0;
#ifdef ROMIO_GPFS
if (gpfsmpio_pthreadio && (numberOfRounds > 1)) {
useIOBuffer = 1;
}
#endif
#ifdef ROMIO_GPFS
endTimeBase = MPI_Wtime();
gpfsmpio_prof_cw[GPFSMPIO_CIO_T_MYREQ] += (endTimeBase - startTimeBase);
#endif
/* each iteration of this loop reads a coll_bufsize portion of the file domain */
int roundIter;
for (roundIter = 0; roundIter < numberOfRounds; roundIter++) {
int irecv, isend;
/* determine what offsets define the portion of the file domain the agg is reading this round */
if (iAmUsedAgg) {
currentRoundFDStart = nextRoundFDStart;
if (!useIOBuffer || (roundIter == 0)) {
int amountDataToReadThisRound;
if ((fd_end[myAggRank] - currentRoundFDStart) < coll_bufsize) {
currentRoundFDEnd = fd_end[myAggRank];
amountDataToReadThisRound = ((currentRoundFDEnd - currentRoundFDStart) + 1);
} else {
currentRoundFDEnd = currentRoundFDStart + coll_bufsize - 1;
amountDataToReadThisRound = coll_bufsize;
}
/* read currentRoundFDEnd bytes */
ADIO_ReadContig(fd, read_buf, amountDataToReadThisRound,
MPI_BYTE, ADIO_EXPLICIT_OFFSET, currentRoundFDStart,
&status, error_code);
currentReadBuf = 1;
#ifdef ROMIO_GPFS
endTimeBase = MPI_Wtime();
#endif
}
if (useIOBuffer) { /* use the thread reader for the next round */
/* switch back and forth between the read buffers so that the data aggregation code is diseminating 1 buffer while the thread is reading into the other */
if (roundIter > 0)
currentRoundFDEnd = nextRoundFDEnd;
if (roundIter < (numberOfRounds - 1)) {
nextRoundFDStart += coll_bufsize;
int amountDataToReadNextRound;
if ((fd_end[myAggRank] - nextRoundFDStart) < coll_bufsize) {
nextRoundFDEnd = fd_end[myAggRank];
amountDataToReadNextRound = ((nextRoundFDEnd - nextRoundFDStart) + 1);
} else {
nextRoundFDEnd = nextRoundFDStart + coll_bufsize - 1;
amountDataToReadNextRound = coll_bufsize;
}
if (!pthread_equal(io_thread, pthread_self())) {
pthread_join(io_thread, &thread_ret);
*error_code = *(int *) thread_ret;
if (*error_code != MPI_SUCCESS)
return;
io_thread = pthread_self();
}
io_thread_args.fd = fd;
/* do a little pointer shuffling: background I/O works from one
* buffer while two-phase machinery fills up another */
if (currentReadBuf == 0) {
io_thread_args.buf = read_buf0;
currentReadBuf = 1;
read_buf = read_buf1;
} else {
io_thread_args.buf = read_buf1;
currentReadBuf = 0;
read_buf = read_buf0;
}
io_thread_args.io_kind = ADIOI_READ;
io_thread_args.size = amountDataToReadNextRound;
io_thread_args.offset = nextRoundFDStart;
io_thread_args.status = &status;
io_thread_args.error_code = *error_code;
if ((pthread_create(&io_thread, NULL,
ADIOI_IO_Thread_Func, &(io_thread_args))) != 0)
io_thread = pthread_self();
} else { /* last round */
if (!pthread_equal(io_thread, pthread_self())) {
pthread_join(io_thread, &thread_ret);
*error_code = *(int *) thread_ret;
if (*error_code != MPI_SUCCESS)
return;
io_thread = pthread_self();
}
if (currentReadBuf == 0) {
read_buf = read_buf1;
} else {
read_buf = read_buf0;
}
}
} /* useIOBuffer */
}
/* IAmUsedAgg */
/* determine what source aggs I need to get data from this round and
* recv only from them */
int numSourceAggsThisRound = 0;
for (i = 0; i < numSourceAggs; i++) {
if (((myOffsetStart >= sourceAggsForMyDataFDStart[i]) &&
(myOffsetStart <= sourceAggsForMyDataFDEnd[i]))
|| ((myOffsetEnd >= sourceAggsForMyDataFDStart[i]) &&
(myOffsetEnd <= sourceAggsForMyDataFDEnd[i]))) {
/* we know that we need to get data from this source agg at
* some point, now need to figure out how much this round */
/* here are the offsets currently being sent by the aggregator
* during this round */
ADIO_Offset currentRoundFDStartForMySourceAgg =
(ADIO_Offset) ((ADIO_Offset) sourceAggsForMyDataFDStart[i] +
(ADIO_Offset) ((ADIO_Offset) roundIter *
(ADIO_Offset) coll_bufsize));
ADIO_Offset currentRoundFDEndForMySourceAgg =
(ADIO_Offset) ((ADIO_Offset) sourceAggsForMyDataFDStart[i] +
(ADIO_Offset) ((ADIO_Offset) (roundIter + 1) *
(ADIO_Offset) coll_bufsize) - (ADIO_Offset) 1);
if (currentRoundFDEndForMySourceAgg > sourceAggsForMyDataFDEnd[i])
currentRoundFDEndForMySourceAgg = sourceAggsForMyDataFDEnd[i];
#ifdef p2pcontigtrace
printf
("roundIter %d source iter %d sourceAggsForMyData is %d myOffsetStart is %ld myOffsetEnd is %ld sourceAggsForMyDataFDStart is %ld sourceAggsForMyDataFDEnd is %ld currentRoundFDStartForMySourceAgg is %ld currentRoundFDEndForMySourceAgg is %ld\n",
roundIter, i, sourceAggsForMyData[i], myOffsetStart, myOffsetEnd,
sourceAggsForMyDataFDStart[i], sourceAggsForMyDataFDEnd[i],
currentRoundFDStartForMySourceAgg, currentRoundFDEndForMySourceAgg);
#endif
/* get the portion of my data that is within currentRoundFDStartForMySourceAgg to currentRoundFDEndForMySourceAgg */
/* find the offset into the recv buffer and the amount of data to get */
int recvBufferOffset = 0;
int bufferAmountToGet = 0;
if ((myOffsetStart >= currentRoundFDStartForMySourceAgg) &&
(myOffsetStart <= currentRoundFDEndForMySourceAgg)) {
if (myOffsetEnd > currentRoundFDEndForMySourceAgg)
bufferAmountToGet = (currentRoundFDEndForMySourceAgg - myOffsetStart) + 1;
else
bufferAmountToGet = (myOffsetEnd - myOffsetStart) + 1;
} else if ((myOffsetEnd >= currentRoundFDStartForMySourceAgg) &&
(myOffsetEnd <= currentRoundFDEndForMySourceAgg)) {
recvBufferOffset = (int) (currentRoundFDStartForMySourceAgg - myOffsetStart);
if (myOffsetEnd > currentRoundFDEndForMySourceAgg)
bufferAmountToGet =
(currentRoundFDEndForMySourceAgg - currentRoundFDStartForMySourceAgg) +
1;
else
bufferAmountToGet = (myOffsetEnd - currentRoundFDStartForMySourceAgg) + 1;
} else if ((myOffsetStart <= currentRoundFDStartForMySourceAgg) &&
(myOffsetEnd >= currentRoundFDEndForMySourceAgg)) {
recvBufferOffset = (int) (currentRoundFDStartForMySourceAgg - myOffsetStart);
bufferAmountToGet =
(currentRoundFDEndForMySourceAgg - currentRoundFDStartForMySourceAgg) + 1;
}
if (bufferAmountToGet > 0) { /* we have data to get this round */
sourceAggIndexesForMyDataThisRound[numSourceAggsThisRound] = i;
recvBufferOffsetsThisRound[numSourceAggsThisRound] = recvBufferOffset;
bufferAmountsToGetThisRound[numSourceAggsThisRound] = bufferAmountToGet;
#ifdef p2pcontigtrace
printf("bufferAmountToGet is %d recvBufferOffset is %d\n", bufferAmountToGet,
recvBufferOffset);
#endif
numSourceAggsThisRound++;
}
}
}
/* the aggs determine the amount of data they will be sending to their
* source procs */
for (i = 0; i < numTargetProcs; i++) {
if ((remainingDataOffsetToSendPerProc[i] >= currentRoundFDStart) &&
(remainingDataOffsetToSendPerProc[i] <= currentRoundFDEnd)) {
if ((remainingDataOffsetToSendPerProc[i] +
remainingDataAmountToSendPerProc[i]) <= currentRoundFDEnd)
dataSizeSentThisRoundPerProc[i] = remainingDataAmountToSendPerProc[i];
else
dataSizeSentThisRoundPerProc[i] =
(currentRoundFDEnd - remainingDataOffsetToSendPerProc[i]) + 1;
} else if (((remainingDataOffsetToSendPerProc[i] +
remainingDataAmountToSendPerProc[i]) >=
currentRoundFDStart) &&
((remainingDataOffsetToSendPerProc[i] +
remainingDataAmountToSendPerProc[i]) <= currentRoundFDEnd)) {
if ((remainingDataOffsetToSendPerProc[i]) >= currentRoundFDStart)
dataSizeSentThisRoundPerProc[i] = remainingDataAmountToSendPerProc[i];
else
dataSizeSentThisRoundPerProc[i] =
(remainingDataOffsetToSendPerProc[i] - currentRoundFDStart) + 1;
} else
dataSizeSentThisRoundPerProc[i] = 0;
}
/* the target procs get the data from the source aggs */
for (i = 0; i < numSourceAggsThisRound; i++) {
MPI_Irecv(&((char *) buf)[recvBufferOffsetsThisRound[i]],
bufferAmountsToGetThisRound[i], MPI_BYTE,
sourceAggsForMyData[sourceAggIndexesForMyDataThisRound[i]], 0, fd->comm,
&mpiRecvDataFromSourceAggsRequest[i]);
}
/* the source aggs send the data to the target procs */
int numTargetProcsSentThisRound = 0;
for (i = 0; i < numTargetProcs; i++) {
int currentWBOffset = 0;
for (j = 0; j < i; j++)
currentWBOffset += dataSizeSentThisRoundPerProc[j];
/* only send to target procs that will recv > 0 count data */
if (dataSizeSentThisRoundPerProc[i] > 0) {
MPI_Isend(&((char *) read_buf)[currentWBOffset],
dataSizeSentThisRoundPerProc[i],
MPI_BYTE, targetProcsForMyData[i], 0,
fd->comm, &mpiSendDataToTargetProcRequest[numTargetProcsSentThisRound]);
numTargetProcsSentThisRound++;
remainingDataAmountToSendPerProc[i] -= dataSizeSentThisRoundPerProc[i];
remainingDataOffsetToSendPerProc[i] += dataSizeSentThisRoundPerProc[i];
}
}
/* wait for the target procs to get their data */
for (i = 0; i < numSourceAggsThisRound; i++) {
MPI_Waitany(numSourceAggsThisRound, mpiRecvDataFromSourceAggsRequest,
&irecv, &mpiWaitAnyStatusFromSourceProcs);
}
nextRoundFDStart = currentRoundFDStart + coll_bufsize;
/* clean up the MPI_Isend MPI_Requests */
for (i = 0; i < numTargetProcsSentThisRound; i++) {
MPI_Waitany(numTargetProcsSentThisRound, mpiSendDataToTargetProcRequest,
&isend, &mpiIsendStatusForData);
}
MPI_Barrier(fd->comm); /* need to sync up the source aggs which did the isend with the target procs which did the irecvs to give the target procs time to get the data before overwriting with next round readcontig */
} /* for-loop roundIter */
if (useIOBuffer) { /* thread reader cleanup */
if (!pthread_equal(io_thread, pthread_self())) {
pthread_join(io_thread, &thread_ret);
*error_code = *(int *) thread_ret;
}
}
if (iAmUsedAgg) {
ADIOI_Free(targetProcsForMyData);
ADIOI_Free(remainingDataAmountToSendPerProc);
ADIOI_Free(remainingDataOffsetToSendPerProc);
}
ADIOI_Free(sourceAggsForMyData);
ADIOI_Free(sourceAggsForMyDataFDStart);
ADIOI_Free(sourceAggsForMyDataFDEnd);
ADIOI_Free(mpiRecvDataFromSourceAggsRequest);
ADIOI_Free(mpiSendDataToTargetProcRequest);
ADIOI_Free(dataSizeSentThisRoundPerProc);
ADIOI_Free(sourceAggIndexesForMyDataThisRound);
ADIOI_Free(recvBufferOffsetsThisRound);
ADIOI_Free(bufferAmountsToGetThisRound);
/* TODO: is Barrier here needed? */
MPI_Barrier(fd->comm);
return;
}
|
