File: t_coll_chunk.c

package info (click to toggle)
hdf5 1.8.13+docs-15+deb8u1
  • links: PTS, VCS
  • area: main
  • in suites: jessie
  • size: 171,908 kB
  • ctags: 30,335
  • sloc: ansic: 387,195; f90: 35,195; sh: 20,035; xml: 17,780; cpp: 13,516; makefile: 1,487; perl: 1,299; yacc: 327; lex: 178; ruby: 37
file content (1281 lines) | stat: -rw-r--r-- 44,014 bytes parent folder | download | duplicates (2)
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
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * Copyright by The HDF Group.                                               *
 * Copyright by the Board of Trustees of the University of Illinois.         *
 * All rights reserved.                                                      *
 *                                                                           *
 * This file is part of HDF5.  The full HDF5 copyright notice, including     *
 * terms governing use, modification, and redistribution, is contained in    *
 * the files COPYING and Copyright.html.  COPYING can be found at the root   *
 * of the source code distribution tree; Copyright.html can be found at the  *
 * root level of an installed copy of the electronic HDF5 document set and   *
 * is linked from the top-level documents page.  It can also be found at     *
 * http://hdfgroup.org/HDF5/doc/Copyright.html.  If you do not have          *
 * access to either file, you may request a copy from help@hdfgroup.org.     *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

#include "testphdf5.h"
#include "H5Dprivate.h"

#define HYPER 1
#define POINT 2
#define ALL 3 

/* some commonly used routines for collective chunk IO tests*/

static void ccslab_set(int mpi_rank,int mpi_size,hsize_t start[],hsize_t count[],
		       hsize_t stride[],hsize_t block[],int mode);

static void ccdataset_fill(hsize_t start[],hsize_t count[],
			   hsize_t stride[],hsize_t block[],DATATYPE*dataset,
                           int mem_selection);

static void ccdataset_print(hsize_t start[],hsize_t block[],DATATYPE*dataset);

static int ccdataset_vrfy(hsize_t start[], hsize_t count[], hsize_t stride[],
			  hsize_t block[], DATATYPE *dataset, DATATYPE *original,
                          int mem_selection);

static void coll_chunktest(const char* filename, int chunk_factor, int select_factor,
                           int api_option, int file_selection, int mem_selection, int mode);


/*-------------------------------------------------------------------------
 * Function:	coll_chunk1
 *
 * Purpose:	Wrapper to test the collective chunk IO for regular JOINT
                selection with a single chunk
 *
 * Return:	Success:	0
 *
 *		Failure:	-1
 *
 * Programmer:	Unknown
 *		July 12th, 2004
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */

/* ------------------------------------------------------------------------
 *  Descriptions for the selection: One big singluar selection inside one chunk
 *  Two dimensions,
 *
 *  dim1       = SPACE_DIM1(5760)*mpi_size
 *  dim2       = SPACE_DIM2(3)
 *  chunk_dim1 = dim1
 *  chunk_dim2 = dim2
 *  block      = 1 for all dimensions
 *  stride     = 1 for all dimensions
 *  count0     = SPACE_DIM1(5760)
 *  count1     = SPACE_DIM2(3)
 *  start0     = mpi_rank*SPACE_DIM1
 *  start1     = 0
 * ------------------------------------------------------------------------
 */

void
coll_chunk1(void)
{
    const char *filename = GetTestParameters();

    coll_chunktest(filename, 1, BYROW_CONT, API_NONE, HYPER, HYPER, OUT_OF_ORDER);
    coll_chunktest(filename, 1, BYROW_CONT, API_NONE, HYPER, POINT, OUT_OF_ORDER);
    coll_chunktest(filename, 1, BYROW_CONT, API_NONE, POINT, ALL, OUT_OF_ORDER);
    coll_chunktest(filename, 1, BYROW_CONT, API_NONE, POINT, POINT, OUT_OF_ORDER);
    coll_chunktest(filename, 1, BYROW_CONT, API_NONE, POINT, HYPER, OUT_OF_ORDER);

    coll_chunktest(filename, 1, BYROW_CONT, API_NONE, POINT, ALL, IN_ORDER);
    coll_chunktest(filename, 1, BYROW_CONT, API_NONE, POINT, POINT, IN_ORDER);
    coll_chunktest(filename, 1, BYROW_CONT, API_NONE, POINT, HYPER, IN_ORDER);
}


/*-------------------------------------------------------------------------
 * Function:	coll_chunk2
 *
 * Purpose:	Wrapper to test the collective chunk IO for regular DISJOINT
                selection with a single chunk
 *
 * Return:	Success:	0
 *
 *		Failure:	-1
 *
 * Programmer:	Unknown
 *		July 12th, 2004
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */

 /* ------------------------------------------------------------------------
 *  Descriptions for the selection: many disjoint selections inside one chunk
 *  Two dimensions,
 *
 *  dim1       = SPACE_DIM1*mpi_size(5760)
 *  dim2       = SPACE_DIM2(3)
 *  chunk_dim1 = dim1
 *  chunk_dim2 = dim2
 *  block      = 1 for all dimensions
 *  stride     = 3 for all dimensions
 *  count0     = SPACE_DIM1/stride0(5760/3)
 *  count1     = SPACE_DIM2/stride(3/3 = 1)
 *  start0     = mpi_rank*SPACE_DIM1
 *  start1     = 0
 *
 * ------------------------------------------------------------------------
 */
void
coll_chunk2(void)
{
    const char *filename = GetTestParameters();

    coll_chunktest(filename, 1, BYROW_DISCONT, API_NONE, HYPER, HYPER, OUT_OF_ORDER);
    coll_chunktest(filename, 1, BYROW_DISCONT, API_NONE, HYPER, POINT, OUT_OF_ORDER);
    coll_chunktest(filename, 1, BYROW_DISCONT, API_NONE, POINT, ALL, OUT_OF_ORDER);
    coll_chunktest(filename, 1, BYROW_DISCONT, API_NONE, POINT, POINT, OUT_OF_ORDER);
    coll_chunktest(filename, 1, BYROW_DISCONT, API_NONE, POINT, HYPER, OUT_OF_ORDER);

    coll_chunktest(filename, 1, BYROW_DISCONT, API_NONE, POINT, ALL, IN_ORDER);
    coll_chunktest(filename, 1, BYROW_DISCONT, API_NONE, POINT, POINT, IN_ORDER);
    coll_chunktest(filename, 1, BYROW_DISCONT, API_NONE, POINT, HYPER, IN_ORDER);
}


/*-------------------------------------------------------------------------
 * Function:	coll_chunk3
 *
 * Purpose:	Wrapper to test the collective chunk IO for regular JOINT
                selection with at least number of 2*mpi_size chunks
 *
 * Return:	Success:	0
 *
 *		Failure:	-1
 *
 * Programmer:	Unknown
 *		July 12th, 2004
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */

/* ------------------------------------------------------------------------
 *  Descriptions for the selection: one singular selection accross many chunks
 *  Two dimensions, Num of chunks = 2* mpi_size
 *
 *  dim1       = SPACE_DIM1*mpi_size
 *  dim2       = SPACE_DIM2(3)
 *  chunk_dim1 = SPACE_DIM1
 *  chunk_dim2 = dim2/2
 *  block      = 1 for all dimensions
 *  stride     = 1 for all dimensions
 *  count0     = SPACE_DIM1
 *  count1     = SPACE_DIM2(3)
 *  start0     = mpi_rank*SPACE_DIM1
 *  start1     = 0
 *
 * ------------------------------------------------------------------------
 */

void
coll_chunk3(void)
{
    const char *filename = GetTestParameters();
    int mpi_size;

    MPI_Comm_size(MPI_COMM_WORLD, &mpi_size);
    coll_chunktest(filename, mpi_size, BYROW_CONT, API_NONE, HYPER, HYPER, OUT_OF_ORDER);
    coll_chunktest(filename, mpi_size, BYROW_CONT, API_NONE, HYPER, POINT, OUT_OF_ORDER);
    coll_chunktest(filename, mpi_size, BYROW_CONT, API_NONE, POINT, ALL, OUT_OF_ORDER);
    coll_chunktest(filename, mpi_size, BYROW_CONT, API_NONE, POINT, POINT, OUT_OF_ORDER);
    coll_chunktest(filename, mpi_size, BYROW_CONT, API_NONE, POINT, HYPER, OUT_OF_ORDER);

    coll_chunktest(filename, mpi_size, BYROW_CONT, API_NONE, POINT, ALL, IN_ORDER);
    coll_chunktest(filename, mpi_size, BYROW_CONT, API_NONE, POINT, POINT, IN_ORDER);
    coll_chunktest(filename, mpi_size, BYROW_CONT, API_NONE, POINT, HYPER, IN_ORDER);
}

/*-------------------------------------------------------------------------
 * Function:	coll_chunk4
 *
 * Purpose:	Wrapper to test the collective chunk IO for regular JOINT
                selection with at least number of 2*mpi_size chunks
 *
 * Return:	Success:	0
 *
 *		Failure:	-1
 *
 * Programmer:	Unknown
 *		July 12th, 2004
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */

/* ------------------------------------------------------------------------
 *  Descriptions for the selection: one singular selection accross many chunks
 *  Two dimensions, Num of chunks = 2* mpi_size
 *
 *  dim1       = SPACE_DIM1*mpi_size
 *  dim2       = SPACE_DIM2
 *  chunk_dim1 = dim1
 *  chunk_dim2 = dim2
 *  block      = 1 for all dimensions
 *  stride     = 1 for all dimensions
 *  count0     = SPACE_DIM1
 *  count1     = SPACE_DIM2(3)
 *  start0     = mpi_rank*SPACE_DIM1
 *  start1     = 0
 *
 * ------------------------------------------------------------------------
 */

void
coll_chunk4(void)
{
    const char *filename = GetTestParameters();

    coll_chunktest(filename, 1, BYROW_SELECTNONE, API_NONE, HYPER, HYPER, OUT_OF_ORDER);
    coll_chunktest(filename, 1, BYROW_SELECTNONE, API_NONE, HYPER, POINT, OUT_OF_ORDER);
    coll_chunktest(filename, 1, BYROW_SELECTNONE, API_NONE, POINT, ALL, OUT_OF_ORDER);
    coll_chunktest(filename, 1, BYROW_SELECTNONE, API_NONE, POINT, POINT, OUT_OF_ORDER);
    coll_chunktest(filename, 1, BYROW_SELECTNONE, API_NONE, POINT, HYPER, OUT_OF_ORDER);

    coll_chunktest(filename, 1, BYROW_SELECTNONE, API_NONE, POINT, ALL, IN_ORDER);
    coll_chunktest(filename, 1, BYROW_SELECTNONE, API_NONE, POINT, POINT, IN_ORDER);
    coll_chunktest(filename, 1, BYROW_SELECTNONE, API_NONE, POINT, HYPER, IN_ORDER);
}

/*-------------------------------------------------------------------------
 * Function:	coll_chunk4
 *
 * Purpose:	Wrapper to test the collective chunk IO for regular JOINT
                selection with at least number of 2*mpi_size chunks
 *
 * Return:	Success:	0
 *
 *		Failure:	-1
 *
 * Programmer:	Unknown
 *		July 12th, 2004
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */

/* ------------------------------------------------------------------------
 *  Descriptions for the selection: one singular selection accross many chunks
 *  Two dimensions, Num of chunks = 2* mpi_size
 *
 *  dim1       = SPACE_DIM1*mpi_size
 *  dim2       = SPACE_DIM2
 *  chunk_dim1 = dim1
 *  chunk_dim2 = dim2
 *  block      = 1 for all dimensions
 *  stride     = 1 for all dimensions
 *  count0     = SPACE_DIM1
 *  count1     = SPACE_DIM2(3)
 *  start0     = mpi_rank*SPACE_DIM1
 *  start1     = 0
 *
 * ------------------------------------------------------------------------
 */

void
coll_chunk5(void)
{
    const char *filename = GetTestParameters();

    coll_chunktest(filename, 4, BYROW_SELECTUNBALANCE, API_LINK_HARD, HYPER, HYPER, OUT_OF_ORDER);
    coll_chunktest(filename, 4, BYROW_SELECTUNBALANCE, API_LINK_HARD, HYPER, POINT, OUT_OF_ORDER);
    coll_chunktest(filename, 4, BYROW_SELECTUNBALANCE, API_LINK_HARD, POINT, ALL, OUT_OF_ORDER);
    coll_chunktest(filename, 4, BYROW_SELECTUNBALANCE, API_LINK_HARD, POINT, POINT, OUT_OF_ORDER);
    coll_chunktest(filename, 4, BYROW_SELECTUNBALANCE, API_LINK_HARD, POINT, HYPER, OUT_OF_ORDER);

    coll_chunktest(filename, 4, BYROW_SELECTUNBALANCE, API_LINK_HARD, POINT, ALL, IN_ORDER);
    coll_chunktest(filename, 4, BYROW_SELECTUNBALANCE, API_LINK_HARD, POINT, POINT, IN_ORDER);
    coll_chunktest(filename, 4, BYROW_SELECTUNBALANCE, API_LINK_HARD, POINT, HYPER, IN_ORDER);
}

/*-------------------------------------------------------------------------
 * Function:	coll_chunk6
 *
 * Purpose:	Test direct request for multi-chunk-io.
 *          Wrapper to test the collective chunk IO for regular JOINT
 *          selection with at least number of 2*mpi_size chunks
 *          Test for direct to Multi Chunk I/O.
 *
 * Return:	Success:	0
 *
 *		Failure:	-1
 *
 * Programmer:	Unknown
 *		July 12th, 2004
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */

/* ------------------------------------------------------------------------
 *  Descriptions for the selection: one singular selection accross many chunks
 *  Two dimensions, Num of chunks = 2* mpi_size
 *
 *  dim1       = SPACE_DIM1*mpi_size
 *  dim2       = SPACE_DIM2
 *  chunk_dim1 = dim1
 *  chunk_dim2 = dim2
 *  block      = 1 for all dimensions
 *  stride     = 1 for all dimensions
 *  count0     = SPACE_DIM1
 *  count1     = SPACE_DIM2(3)
 *  start0     = mpi_rank*SPACE_DIM1
 *  start1     = 0
 *
 * ------------------------------------------------------------------------
 */

void
coll_chunk6(void)
{
    const char *filename = GetTestParameters();

    coll_chunktest(filename, 4, BYROW_SELECTUNBALANCE, API_MULTI_HARD, HYPER, HYPER, OUT_OF_ORDER);
    coll_chunktest(filename, 4, BYROW_SELECTUNBALANCE, API_MULTI_HARD, HYPER, POINT, OUT_OF_ORDER);
    coll_chunktest(filename, 4, BYROW_SELECTUNBALANCE, API_MULTI_HARD, POINT, ALL, OUT_OF_ORDER);
    coll_chunktest(filename, 4, BYROW_SELECTUNBALANCE, API_MULTI_HARD, POINT, POINT, OUT_OF_ORDER);
    coll_chunktest(filename, 4, BYROW_SELECTUNBALANCE, API_MULTI_HARD, POINT, HYPER, OUT_OF_ORDER);

    coll_chunktest(filename, 4, BYROW_SELECTUNBALANCE, API_MULTI_HARD, POINT, ALL, IN_ORDER);
    coll_chunktest(filename, 4, BYROW_SELECTUNBALANCE, API_MULTI_HARD, POINT, POINT, IN_ORDER);
    coll_chunktest(filename, 4, BYROW_SELECTUNBALANCE, API_MULTI_HARD, POINT, HYPER, IN_ORDER);
}

/*-------------------------------------------------------------------------
 * Function:	coll_chunk7
 *
 * Purpose:	Wrapper to test the collective chunk IO for regular JOINT
                selection with at least number of 2*mpi_size chunks
 *
 * Return:	Success:	0
 *
 *		Failure:	-1
 *
 * Programmer:	Unknown
 *		July 12th, 2004
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */

/* ------------------------------------------------------------------------
 *  Descriptions for the selection: one singular selection accross many chunks
 *  Two dimensions, Num of chunks = 2* mpi_size
 *
 *  dim1       = SPACE_DIM1*mpi_size
 *  dim2       = SPACE_DIM2
 *  chunk_dim1 = dim1
 *  chunk_dim2 = dim2
 *  block      = 1 for all dimensions
 *  stride     = 1 for all dimensions
 *  count0     = SPACE_DIM1
 *  count1     = SPACE_DIM2(3)
 *  start0     = mpi_rank*SPACE_DIM1
 *  start1     = 0
 *
 * ------------------------------------------------------------------------
 */

void
coll_chunk7(void)
{
    const char *filename = GetTestParameters();

    coll_chunktest(filename, 4, BYROW_SELECTUNBALANCE, API_LINK_TRUE, HYPER, HYPER, OUT_OF_ORDER);
    coll_chunktest(filename, 4, BYROW_SELECTUNBALANCE, API_LINK_TRUE, HYPER, POINT, OUT_OF_ORDER);
    coll_chunktest(filename, 4, BYROW_SELECTUNBALANCE, API_LINK_TRUE, POINT, ALL, OUT_OF_ORDER);
    coll_chunktest(filename, 4, BYROW_SELECTUNBALANCE, API_LINK_TRUE, POINT, POINT, OUT_OF_ORDER);
    coll_chunktest(filename, 4, BYROW_SELECTUNBALANCE, API_LINK_TRUE, POINT, HYPER, OUT_OF_ORDER);

    coll_chunktest(filename, 4, BYROW_SELECTUNBALANCE, API_LINK_TRUE, POINT, ALL, IN_ORDER);
    coll_chunktest(filename, 4, BYROW_SELECTUNBALANCE, API_LINK_TRUE, POINT, POINT, IN_ORDER);
    coll_chunktest(filename, 4, BYROW_SELECTUNBALANCE, API_LINK_TRUE, POINT, HYPER, IN_ORDER);
}

/*-------------------------------------------------------------------------
 * Function:	coll_chunk8
 *
 * Purpose:	Wrapper to test the collective chunk IO for regular JOINT
                selection with at least number of 2*mpi_size chunks
 *
 * Return:	Success:	0
 *
 *		Failure:	-1
 *
 * Programmer:	Unknown
 *		July 12th, 2004
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */

/* ------------------------------------------------------------------------
 *  Descriptions for the selection: one singular selection accross many chunks
 *  Two dimensions, Num of chunks = 2* mpi_size
 *
 *  dim1       = SPACE_DIM1*mpi_size
 *  dim2       = SPACE_DIM2
 *  chunk_dim1 = dim1
 *  chunk_dim2 = dim2
 *  block      = 1 for all dimensions
 *  stride     = 1 for all dimensions
 *  count0     = SPACE_DIM1
 *  count1     = SPACE_DIM2(3)
 *  start0     = mpi_rank*SPACE_DIM1
 *  start1     = 0
 *
 * ------------------------------------------------------------------------
 */

void
coll_chunk8(void)
{
    const char *filename = GetTestParameters();

    coll_chunktest(filename, 4, BYROW_SELECTUNBALANCE, API_LINK_FALSE, HYPER, HYPER, OUT_OF_ORDER);
    coll_chunktest(filename, 4, BYROW_SELECTUNBALANCE, API_LINK_FALSE, HYPER, POINT, OUT_OF_ORDER);
    coll_chunktest(filename, 4, BYROW_SELECTUNBALANCE, API_LINK_FALSE, POINT, ALL, OUT_OF_ORDER);
    coll_chunktest(filename, 4, BYROW_SELECTUNBALANCE, API_LINK_FALSE, POINT, POINT, OUT_OF_ORDER);
    coll_chunktest(filename, 4, BYROW_SELECTUNBALANCE, API_LINK_FALSE, POINT, HYPER, OUT_OF_ORDER);

    coll_chunktest(filename, 4, BYROW_SELECTUNBALANCE, API_LINK_FALSE, POINT, ALL, IN_ORDER);
    coll_chunktest(filename, 4, BYROW_SELECTUNBALANCE, API_LINK_FALSE, POINT, POINT, IN_ORDER);
    coll_chunktest(filename, 4, BYROW_SELECTUNBALANCE, API_LINK_FALSE, POINT, HYPER, IN_ORDER);
}

/*-------------------------------------------------------------------------
 * Function:	coll_chunk9
 *
 * Purpose:	Wrapper to test the collective chunk IO for regular JOINT
                selection with at least number of 2*mpi_size chunks
 *
 * Return:	Success:	0
 *
 *		Failure:	-1
 *
 * Programmer:	Unknown
 *		July 12th, 2004
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */

/* ------------------------------------------------------------------------
 *  Descriptions for the selection: one singular selection accross many chunks
 *  Two dimensions, Num of chunks = 2* mpi_size
 *
 *  dim1       = SPACE_DIM1*mpi_size
 *  dim2       = SPACE_DIM2
 *  chunk_dim1 = dim1
 *  chunk_dim2 = dim2
 *  block      = 1 for all dimensions
 *  stride     = 1 for all dimensions
 *  count0     = SPACE_DIM1
 *  count1     = SPACE_DIM2(3)
 *  start0     = mpi_rank*SPACE_DIM1
 *  start1     = 0
 *
 * ------------------------------------------------------------------------
 */

void
coll_chunk9(void)
{
  const char *filename = GetTestParameters();

  coll_chunktest(filename, 4, BYROW_SELECTUNBALANCE, API_MULTI_COLL, HYPER, HYPER, OUT_OF_ORDER);
  coll_chunktest(filename, 4, BYROW_SELECTUNBALANCE, API_MULTI_COLL, HYPER, POINT, OUT_OF_ORDER);
  coll_chunktest(filename, 4, BYROW_SELECTUNBALANCE, API_MULTI_COLL, POINT, ALL, OUT_OF_ORDER);
  coll_chunktest(filename, 4, BYROW_SELECTUNBALANCE, API_MULTI_COLL, POINT, POINT, OUT_OF_ORDER);
  coll_chunktest(filename, 4, BYROW_SELECTUNBALANCE, API_MULTI_COLL, POINT, HYPER, OUT_OF_ORDER);

  coll_chunktest(filename, 4, BYROW_SELECTUNBALANCE, API_MULTI_COLL, POINT, ALL, IN_ORDER);
  coll_chunktest(filename, 4, BYROW_SELECTUNBALANCE, API_MULTI_COLL, POINT, POINT, IN_ORDER);
  coll_chunktest(filename, 4, BYROW_SELECTUNBALANCE, API_MULTI_COLL, POINT, HYPER, IN_ORDER);
}

/*-------------------------------------------------------------------------
 * Function:	coll_chunk10
 *
 * Purpose:	Wrapper to test the collective chunk IO for regular JOINT
                selection with at least number of 2*mpi_size chunks
 *
 * Return:	Success:	0
 *
 *		Failure:	-1
 *
 * Programmer:	Unknown
 *		July 12th, 2004
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */

/* ------------------------------------------------------------------------
 *  Descriptions for the selection: one singular selection accross many chunks
 *  Two dimensions, Num of chunks = 2* mpi_size
 *
 *  dim1       = SPACE_DIM1*mpi_size
 *  dim2       = SPACE_DIM2
 *  chunk_dim1 = dim1
 *  chunk_dim2 = dim2
 *  block      = 1 for all dimensions
 *  stride     = 1 for all dimensions
 *  count0     = SPACE_DIM1
 *  count1     = SPACE_DIM2(3)
 *  start0     = mpi_rank*SPACE_DIM1
 *  start1     = 0
 *
 * ------------------------------------------------------------------------
 */

void
coll_chunk10(void)
{
  const char *filename = GetTestParameters();

  coll_chunktest(filename, 4, BYROW_SELECTINCHUNK, API_MULTI_IND, HYPER, HYPER, OUT_OF_ORDER);
  coll_chunktest(filename, 4, BYROW_SELECTINCHUNK, API_MULTI_IND, HYPER, POINT, OUT_OF_ORDER);
  coll_chunktest(filename, 4, BYROW_SELECTINCHUNK, API_MULTI_IND, POINT, ALL, OUT_OF_ORDER);
  coll_chunktest(filename, 4, BYROW_SELECTINCHUNK, API_MULTI_IND, POINT, POINT, OUT_OF_ORDER);
  coll_chunktest(filename, 4, BYROW_SELECTINCHUNK, API_MULTI_IND, POINT, HYPER, OUT_OF_ORDER);

  coll_chunktest(filename, 4, BYROW_SELECTINCHUNK, API_MULTI_IND, POINT, ALL, IN_ORDER);
  coll_chunktest(filename, 4, BYROW_SELECTINCHUNK, API_MULTI_IND, POINT, POINT, IN_ORDER);
  coll_chunktest(filename, 4, BYROW_SELECTINCHUNK, API_MULTI_IND, POINT, HYPER, IN_ORDER);
}


/*-------------------------------------------------------------------------
 * Function:	coll_chunktest
 *
 * Purpose:     The real testing routine for regular selection of collective
                chunking storage
                testing both write and read,
		If anything fails, it may be read or write. There is no
		separation test between read and write.
 *
 * Return:	Success:	0
 *
 *		Failure:	-1
 *
 * Modifications:
 *   Remove invalid temporary property checkings for API_LINK_HARD and
 *   API_LINK_TRUE cases.
 * Programmer: Jonathan Kim
 * Date: 2012-10-10
 *
 * Programmer:	Unknown
 *		July 12th, 2004
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */

static void
coll_chunktest(const char* filename,
	       int chunk_factor,
	       int select_factor,
               int api_option,
               int file_selection,
               int mem_selection,
               int mode)
{
  hid_t	   file, dataset, file_dataspace, mem_dataspace;
  hid_t    acc_plist,xfer_plist,crp_plist;

  hsize_t  dims[RANK], chunk_dims[RANK];
  int*     data_array1  = NULL;
  int*     data_origin1 = NULL;

  hsize_t  start[RANK],count[RANK],stride[RANK],block[RANK];

#ifdef H5_HAVE_INSTRUMENTED_LIBRARY
  unsigned prop_value;
#endif /* H5_HAVE_INSTRUMENTED_LIBRARY */

  int      mpi_size,mpi_rank;

  herr_t   status;
  MPI_Comm comm = MPI_COMM_WORLD;
  MPI_Info info = MPI_INFO_NULL;

  size_t  num_points;           /* for point selection */
  hsize_t *coords = NULL;       /* for point selection */
  hsize_t current_dims;         /* for point selection */
  int i;

  /* set up MPI parameters */
  MPI_Comm_size(comm,&mpi_size);
  MPI_Comm_rank(comm,&mpi_rank);

  /* Create the data space */

  acc_plist = create_faccess_plist(comm,info,facc_type);
  VRFY((acc_plist >= 0),"");

  file = H5Fcreate(filename,H5F_ACC_TRUNC,H5P_DEFAULT,acc_plist);
  VRFY((file >= 0),"H5Fcreate succeeded");

  status = H5Pclose(acc_plist);
  VRFY((status >= 0),"");

  /* setup dimensionality object */
  dims[0] = SPACE_DIM1*mpi_size;
  dims[1] = SPACE_DIM2;

  /* allocate memory for data buffer */
  data_array1 = (int *)malloc(dims[0] * dims[1] * sizeof(int));
  VRFY((data_array1 != NULL), "data_array1 malloc succeeded");

  /* set up dimensions of the slab this process accesses */
  ccslab_set(mpi_rank, mpi_size, start, count, stride, block, select_factor);

  /* set up the coords array selection */
  num_points = block[0] * block[1] * count[0] * count[1];
  coords = (hsize_t *)HDmalloc(num_points * RANK * sizeof(hsize_t));
  VRFY((coords != NULL), "coords malloc succeeded");
  point_set(start, count, stride, block, num_points, coords, mode);

  file_dataspace = H5Screate_simple(2, dims, NULL);
  VRFY((file_dataspace >= 0), "file dataspace created succeeded");

  if(ALL != mem_selection) {
      mem_dataspace = H5Screate_simple(2, dims, NULL);
      VRFY((mem_dataspace >= 0), "mem dataspace created succeeded");
  }
  else {
      current_dims = num_points;
      mem_dataspace = H5Screate_simple (1, &current_dims, NULL);
      VRFY((mem_dataspace >= 0), "mem_dataspace create succeeded");
  }

  crp_plist = H5Pcreate(H5P_DATASET_CREATE);
  VRFY((crp_plist >= 0),"");

  /* Set up chunk information.  */
  chunk_dims[0] = dims[0]/chunk_factor;

  /* to decrease the testing time, maintain bigger chunk size */
  (chunk_factor == 1) ? (chunk_dims[1] = SPACE_DIM2) : (chunk_dims[1] = SPACE_DIM2/2);
  status = H5Pset_chunk(crp_plist, 2, chunk_dims);
  VRFY((status >= 0),"chunk creation property list succeeded");

  dataset = H5Dcreate2(file, DSET_COLLECTIVE_CHUNK_NAME, H5T_NATIVE_INT,
                       file_dataspace, H5P_DEFAULT, crp_plist, H5P_DEFAULT);
  VRFY((dataset >= 0),"dataset created succeeded");

  status = H5Pclose(crp_plist);
  VRFY((status >= 0), "");

  /*put some trivial data in the data array */
  ccdataset_fill(start, stride, count,block, data_array1, mem_selection);

  MESG("data_array initialized");

  switch (file_selection) {
      case HYPER:
          status = H5Sselect_hyperslab(file_dataspace, H5S_SELECT_SET, start, stride, count, block);
          VRFY((status >= 0),"hyperslab selection succeeded");
          break;

      case POINT:
          if (num_points) {
              status = H5Sselect_elements(file_dataspace, H5S_SELECT_SET, num_points, coords);
              VRFY((status >= 0),"Element selection succeeded");
          }
          else {
              status = H5Sselect_none(file_dataspace);
              VRFY((status >= 0),"none selection succeeded");
          }
          break;

      case ALL:
          status = H5Sselect_all(file_dataspace);
          VRFY((status >= 0), "H5Sselect_all succeeded");
          break;
  }

  switch (mem_selection) {
      case HYPER:
          status = H5Sselect_hyperslab(mem_dataspace, H5S_SELECT_SET, start, stride, count, block);
          VRFY((status >= 0),"hyperslab selection succeeded");
          break;

      case POINT:
          if (num_points) {
              status = H5Sselect_elements(mem_dataspace, H5S_SELECT_SET, num_points, coords);
              VRFY((status >= 0),"Element selection succeeded");
          }
          else {
              status = H5Sselect_none(mem_dataspace);
              VRFY((status >= 0),"none selection succeeded");
          }
          break;

      case ALL:
          status = H5Sselect_all(mem_dataspace);
          VRFY((status >= 0), "H5Sselect_all succeeded");
          break;
  }

  /* set up the collective transfer property list */
  xfer_plist = H5Pcreate(H5P_DATASET_XFER);
  VRFY((xfer_plist >= 0), "");

  status = H5Pset_dxpl_mpio(xfer_plist, H5FD_MPIO_COLLECTIVE);
  VRFY((status>= 0),"MPIO collective transfer property succeeded");
  if(dxfer_coll_type == DXFER_INDEPENDENT_IO) {
     status = H5Pset_dxpl_mpio_collective_opt(xfer_plist, H5FD_MPIO_INDIVIDUAL_IO);
     VRFY((status>= 0),"set independent IO collectively succeeded");
  }

  switch(api_option){
	case API_LINK_HARD:
	   status = H5Pset_dxpl_mpio_chunk_opt(xfer_plist,H5FD_MPIO_CHUNK_ONE_IO);
           VRFY((status>= 0),"collective chunk optimization succeeded");
           break;

	case API_MULTI_HARD:
	   status = H5Pset_dxpl_mpio_chunk_opt(xfer_plist,H5FD_MPIO_CHUNK_MULTI_IO);
	   VRFY((status>= 0),"collective chunk optimization succeeded ");
           break;

	case API_LINK_TRUE:
           status = H5Pset_dxpl_mpio_chunk_opt_num(xfer_plist,2);
	   VRFY((status>= 0),"collective chunk optimization set chunk number succeeded");
           break;

	case API_LINK_FALSE:
           status = H5Pset_dxpl_mpio_chunk_opt_num(xfer_plist,6);
           VRFY((status>= 0),"collective chunk optimization set chunk number succeeded");
           break;

	case API_MULTI_COLL:
           status = H5Pset_dxpl_mpio_chunk_opt_num(xfer_plist,8);/* make sure it is using multi-chunk IO */
           VRFY((status>= 0),"collective chunk optimization set chunk number succeeded");
	   status = H5Pset_dxpl_mpio_chunk_opt_ratio(xfer_plist,50);
           VRFY((status>= 0),"collective chunk optimization set chunk ratio succeeded");
           break;

	case API_MULTI_IND:
           status = H5Pset_dxpl_mpio_chunk_opt_num(xfer_plist,8);/* make sure it is using multi-chunk IO */
           VRFY((status>= 0),"collective chunk optimization set chunk number succeeded");
	   status = H5Pset_dxpl_mpio_chunk_opt_ratio(xfer_plist,100);
           VRFY((status>= 0),"collective chunk optimization set chunk ratio succeeded");
           break;

	default:
            ;
   }

#ifdef H5_HAVE_INSTRUMENTED_LIBRARY
  if(facc_type == FACC_MPIO) {
      switch(api_option) {
            case API_LINK_HARD:
               prop_value = H5D_XFER_COLL_CHUNK_DEF;
               status = H5Pinsert2(xfer_plist, H5D_XFER_COLL_CHUNK_LINK_HARD_NAME, H5D_XFER_COLL_CHUNK_SIZE, &prop_value,
                           NULL, NULL, NULL, NULL, NULL, NULL);
               VRFY((status >= 0),"testing property list inserted succeeded");
               break;

            case API_MULTI_HARD:
               prop_value = H5D_XFER_COLL_CHUNK_DEF;
               status = H5Pinsert2(xfer_plist, H5D_XFER_COLL_CHUNK_MULTI_HARD_NAME, H5D_XFER_COLL_CHUNK_SIZE, &prop_value,
                           NULL, NULL, NULL, NULL, NULL, NULL);
               VRFY((status >= 0),"testing property list inserted succeeded");
               break;

            case API_LINK_TRUE:
               prop_value = H5D_XFER_COLL_CHUNK_DEF;
               status = H5Pinsert2(xfer_plist, H5D_XFER_COLL_CHUNK_LINK_NUM_TRUE_NAME, H5D_XFER_COLL_CHUNK_SIZE, &prop_value,
                           NULL, NULL, NULL, NULL, NULL, NULL);
               VRFY((status >= 0),"testing property list inserted succeeded");
               break;

            case API_LINK_FALSE:
               prop_value = H5D_XFER_COLL_CHUNK_DEF;
               status = H5Pinsert2(xfer_plist, H5D_XFER_COLL_CHUNK_LINK_NUM_FALSE_NAME, H5D_XFER_COLL_CHUNK_SIZE, &prop_value,
                           NULL, NULL, NULL, NULL, NULL, NULL);
               VRFY((status >= 0),"testing property list inserted succeeded");
               break;

            case API_MULTI_COLL:
               prop_value = H5D_XFER_COLL_CHUNK_DEF;
               status = H5Pinsert2(xfer_plist, H5D_XFER_COLL_CHUNK_MULTI_RATIO_COLL_NAME, H5D_XFER_COLL_CHUNK_SIZE, &prop_value,
                           NULL, NULL, NULL, NULL, NULL, NULL);
               VRFY((status >= 0),"testing property list inserted succeeded");
               break;

            case API_MULTI_IND:
               prop_value = H5D_XFER_COLL_CHUNK_DEF;
               status = H5Pinsert2(xfer_plist, H5D_XFER_COLL_CHUNK_MULTI_RATIO_IND_NAME, H5D_XFER_COLL_CHUNK_SIZE, &prop_value,
                           NULL, NULL, NULL, NULL, NULL, NULL);
               VRFY((status >= 0),"testing property list inserted succeeded");
               break;

            default:
                ;
       }
   }
#endif

  /* write data collectively */
  status = H5Dwrite(dataset, H5T_NATIVE_INT, mem_dataspace, file_dataspace,
		    xfer_plist, data_array1);
  VRFY((status >= 0),"dataset write succeeded");

#ifdef H5_HAVE_INSTRUMENTED_LIBRARY
  if(facc_type == FACC_MPIO) {
      switch(api_option){
            case API_LINK_HARD:
               status = H5Pget(xfer_plist,H5D_XFER_COLL_CHUNK_LINK_HARD_NAME,&prop_value);
               VRFY((status >= 0),"testing property list get succeeded");
               VRFY((prop_value == 0),"API to set LINK COLLECTIVE IO directly succeeded");
               break;

            case API_MULTI_HARD:
               status = H5Pget(xfer_plist,H5D_XFER_COLL_CHUNK_MULTI_HARD_NAME,&prop_value);
               VRFY((status >= 0),"testing property list get succeeded");
               VRFY((prop_value == 0),"API to set MULTI-CHUNK COLLECTIVE IO optimization succeeded");
               break;

            case API_LINK_TRUE:
               status = H5Pget(xfer_plist,H5D_XFER_COLL_CHUNK_LINK_NUM_TRUE_NAME,&prop_value);
               VRFY((status >= 0),"testing property list get succeeded");
               VRFY((prop_value == 0),"API to set LINK COLLECTIVE IO succeeded");
               break;

            case API_LINK_FALSE:
               status = H5Pget(xfer_plist,H5D_XFER_COLL_CHUNK_LINK_NUM_FALSE_NAME,&prop_value);
               VRFY((status >= 0),"testing property list get succeeded");
               VRFY((prop_value == 0),"API to set LINK IO transferring to multi-chunk IO succeeded");
               break;

            case API_MULTI_COLL:
               status = H5Pget(xfer_plist,H5D_XFER_COLL_CHUNK_MULTI_RATIO_COLL_NAME,&prop_value);
               VRFY((status >= 0),"testing property list get succeeded");
               VRFY((prop_value == 0),"API to set MULTI-CHUNK COLLECTIVE IO with optimization succeeded");
               break;

            case API_MULTI_IND:
               status = H5Pget(xfer_plist,H5D_XFER_COLL_CHUNK_MULTI_RATIO_IND_NAME,&prop_value);
               VRFY((status >= 0),"testing property list get succeeded");
               VRFY((prop_value == 0),"API to set MULTI-CHUNK IO transferring to independent IO  succeeded");
               break;

            default:
            ;
       }
   }
#endif

  status = H5Dclose(dataset);
  VRFY((status >= 0),"");

  status = H5Pclose(xfer_plist);
  VRFY((status >= 0),"property list closed");

  status = H5Sclose(file_dataspace);
  VRFY((status >= 0),"");

  status = H5Sclose(mem_dataspace);
  VRFY((status >= 0),"");


  status = H5Fclose(file);
  VRFY((status >= 0),"");

  if (data_array1) HDfree(data_array1);

  /* Use collective read to verify the correctness of collective write. */

  /* allocate memory for data buffer */
  data_array1 = (int *)malloc(dims[0]*dims[1]*sizeof(int));
  VRFY((data_array1 != NULL), "data_array1 malloc succeeded");

  /* allocate memory for data buffer */
  data_origin1 = (int *)malloc(dims[0]*dims[1]*sizeof(int));
  VRFY((data_origin1 != NULL), "data_origin1 malloc succeeded");

  acc_plist = create_faccess_plist(comm, info, facc_type);
  VRFY((acc_plist >= 0),"MPIO creation property list succeeded");

  file = H5Fopen(filename,H5F_ACC_RDONLY,acc_plist);
  VRFY((file >= 0),"H5Fcreate succeeded");

  status = H5Pclose(acc_plist);
  VRFY((status >= 0),"");

  /* open the collective dataset*/
  dataset = H5Dopen2(file, DSET_COLLECTIVE_CHUNK_NAME, H5P_DEFAULT);
  VRFY((dataset >= 0), "");

  /* set up dimensions of the slab this process accesses */
  ccslab_set(mpi_rank, mpi_size, start, count, stride, block, select_factor);

  /* obtain the file and mem dataspace*/
  file_dataspace = H5Dget_space (dataset);
  VRFY((file_dataspace >= 0), "");

  if (ALL != mem_selection) {
      mem_dataspace = H5Dget_space (dataset);
      VRFY((mem_dataspace >= 0), "");
  }
  else {
      current_dims = num_points;
      mem_dataspace = H5Screate_simple (1, &current_dims, NULL);
      VRFY((mem_dataspace >= 0), "mem_dataspace create succeeded");
  }

  switch (file_selection) {
      case HYPER:
          status = H5Sselect_hyperslab(file_dataspace, H5S_SELECT_SET, start, stride, count, block);
          VRFY((status >= 0),"hyperslab selection succeeded");
          break;

      case POINT:
          if (num_points) {
              status = H5Sselect_elements(file_dataspace, H5S_SELECT_SET, num_points, coords);
              VRFY((status >= 0),"Element selection succeeded");
          }
          else {
              status = H5Sselect_none(file_dataspace);
              VRFY((status >= 0),"none selection succeeded");
          }
          break;

      case ALL:
          status = H5Sselect_all(file_dataspace);
          VRFY((status >= 0), "H5Sselect_all succeeded");
          break;
  }

  switch (mem_selection) {
      case HYPER:
          status = H5Sselect_hyperslab(mem_dataspace, H5S_SELECT_SET, start, stride, count, block);
          VRFY((status >= 0),"hyperslab selection succeeded");
          break;

      case POINT:
          if (num_points) {
              status = H5Sselect_elements(mem_dataspace, H5S_SELECT_SET, num_points, coords);
              VRFY((status >= 0),"Element selection succeeded");
          }
          else {
              status = H5Sselect_none(mem_dataspace);
              VRFY((status >= 0),"none selection succeeded");
          }
          break;

      case ALL:
          status = H5Sselect_all(mem_dataspace);
          VRFY((status >= 0), "H5Sselect_all succeeded");
          break;
  }

  /* fill dataset with test data */
  ccdataset_fill(start, stride,count,block, data_origin1, mem_selection);
  xfer_plist = H5Pcreate (H5P_DATASET_XFER);
  VRFY((xfer_plist >= 0),"");

  status = H5Pset_dxpl_mpio(xfer_plist, H5FD_MPIO_COLLECTIVE);
  VRFY((status>= 0),"MPIO collective transfer property succeeded");
  if(dxfer_coll_type == DXFER_INDEPENDENT_IO) {
     status = H5Pset_dxpl_mpio_collective_opt(xfer_plist,H5FD_MPIO_INDIVIDUAL_IO);
     VRFY((status>= 0),"set independent IO collectively succeeded");
  }

  status = H5Dread(dataset, H5T_NATIVE_INT, mem_dataspace, file_dataspace,
                   xfer_plist, data_array1);
  VRFY((status >=0),"dataset read succeeded");

  /* verify the read data with original expected data */
  status = ccdataset_vrfy(start, count, stride, block, data_array1, data_origin1, mem_selection);
  if (status) nerrors++;

  status = H5Pclose(xfer_plist);
  VRFY((status >= 0),"property list closed");

  /* close dataset collectively */
  status=H5Dclose(dataset);
  VRFY((status >= 0), "H5Dclose");

  /* release all IDs created */
  status = H5Sclose(file_dataspace);
  VRFY((status >= 0),"H5Sclose");

  status = H5Sclose(mem_dataspace);
  VRFY((status >= 0),"H5Sclose");

  /* close the file collectively */
  status = H5Fclose(file);
  VRFY((status >= 0),"H5Fclose");

  /* release data buffers */
  if(coords) HDfree(coords);
  if(data_array1) HDfree(data_array1);
  if(data_origin1) HDfree(data_origin1);

}


/* Set up the selection */
static void
ccslab_set(int mpi_rank,
	   int mpi_size,
	   hsize_t start[],
	   hsize_t count[],
	   hsize_t stride[],
	   hsize_t block[],
	   int mode)
{

    switch (mode){

    case BYROW_CONT:
	/* Each process takes a slabs of rows. */
	block[0]  =  1;
	block[1]  =  1;
	stride[0] =  1;
	stride[1] =  1;
	count[0]  =  SPACE_DIM1;
	count[1]  =  SPACE_DIM2;
	start[0]  =  mpi_rank*count[0];
	start[1]  =  0;

	break;

    case BYROW_DISCONT:
	/* Each process takes several disjoint blocks. */
	block[0]  =  1;
	block[1]  =  1;
        stride[0] =  3;
        stride[1] =  3;
        count[0]  =  SPACE_DIM1/(stride[0]*block[0]);
        count[1]  =  (SPACE_DIM2)/(stride[1]*block[1]);
	start[0]  =  SPACE_DIM1*mpi_rank;
	start[1]  =  0;

	break;

    case BYROW_SELECTNONE:
	/* Each process takes a slabs of rows, there are
           no selections for the last process. */
	block[0]  =  1;
	block[1]  =  1;
	stride[0] =  1;
	stride[1] =  1;
	count[0]  =  ((mpi_rank >= MAX(1,(mpi_size-2)))?0:SPACE_DIM1);
	count[1]  =  SPACE_DIM2;
	start[0]  =  mpi_rank*count[0];
	start[1]  =  0;

	break;

    case BYROW_SELECTUNBALANCE:
      /* The first one-third of the number of processes only
         select top half of the domain, The rest will select the bottom
         half of the domain. */

        block[0]  = 1;
	count[0]  = 2;
        stride[0] = SPACE_DIM1*mpi_size/4+1;
        block[1]  = SPACE_DIM2;
        count[1]  = 1;
        start[1]  = 0;
        stride[1] = 1;
	if((mpi_rank *3)<(mpi_size*2)) start[0]  = mpi_rank;
	else start[0] = 1 + SPACE_DIM1*mpi_size/2 + (mpi_rank-2*mpi_size/3);
        break;

    case BYROW_SELECTINCHUNK:
      /* Each process will only select one chunk */

        block[0] = 1;
        count[0] = 1;
	start[0] = mpi_rank*SPACE_DIM1;
        stride[0]= 1;
	block[1] = SPACE_DIM2;
	count[1] = 1;
	stride[1]= 1;
	start[1] = 0;

        break;

    default:
	/* Unknown mode.  Set it to cover the whole dataset. */
	block[0]  = SPACE_DIM1*mpi_size;
	block[1]  = SPACE_DIM2;
	stride[0] = block[0];
	stride[1] = block[1];
	count[0]  = 1;
	count[1]  = 1;
	start[0]  = 0;
	start[1]  = 0;

	break;
    }
    if (VERBOSE_MED){
      printf("start[]=(%lu,%lu), count[]=(%lu,%lu), stride[]=(%lu,%lu), block[]=(%lu,%lu), total datapoints=%lu\n",
	(unsigned long)start[0], (unsigned long)start[1], (unsigned long)count[0], (unsigned long)count[1],
	(unsigned long)stride[0], (unsigned long)stride[1], (unsigned long)block[0], (unsigned long)block[1],
	(unsigned long)(block[0]*block[1]*count[0]*count[1]));
    }
}


/*
 * Fill the dataset with trivial data for testing.
 * Assume dimension rank is 2.
 */
static void
ccdataset_fill(hsize_t start[],
	       hsize_t stride[],
	       hsize_t count[],
	       hsize_t block[],
	       DATATYPE * dataset,
               int mem_selection)
{
    DATATYPE *dataptr = dataset;
    DATATYPE *tmptr;
    hsize_t   i,j,k1,k2,k=0;
    /* put some trivial data in the data_array */
    tmptr = dataptr;

    /* assign the disjoint block (two-dimensional)data array value
       through the pointer */

    for (k1 = 0; k1 < count[0]; k1++) {
      for(i = 0;  i < block[0]; i++) {
        for(k2 = 0; k2 < count[1]; k2++) {
          for(j = 0;j < block[1]; j++) {

            if (ALL != mem_selection) {
                dataptr  =  tmptr + ((start[0]+k1*stride[0]+i)*SPACE_DIM2+
                                     start[1]+k2*stride[1]+j);
            }
            else {
                dataptr = tmptr + k;
                k++;
            }

            *dataptr = (DATATYPE)(k1+k2+i+j);
          }
        }
      }
    }
}

/*
 * Print the first block of the content of the dataset.
 */
static void
ccdataset_print(hsize_t start[],
		hsize_t block[],
		DATATYPE * dataset)

{
    DATATYPE *dataptr = dataset;
    hsize_t i, j;

    /* print the column heading */
    printf("Print only the first block of the dataset\n");
    printf("%-8s", "Cols:");
    for (j=0; j < block[1]; j++){
	printf("%3lu ", (unsigned long)(start[1]+j));
    }
    printf("\n");

    /* print the slab data */
    for (i=0; i < block[0]; i++){
	printf("Row %2lu: ", (unsigned long)(i+start[0]));
	for (j=0; j < block[1]; j++){
	    printf("%03d ", *dataptr++);
	}
	printf("\n");
    }
}


/*
 * Print the content of the dataset.
 */
static int
ccdataset_vrfy(hsize_t start[],
	       hsize_t count[],
	       hsize_t stride[],
	       hsize_t block[],
	       DATATYPE *dataset,
	       DATATYPE *original,
               int mem_selection)
{
    hsize_t i, j,k1,k2,k=0;
    int vrfyerrs;
    DATATYPE *dataptr,*oriptr;

    /* print it if VERBOSE_MED */
    if (VERBOSE_MED) {
	printf("dataset_vrfy dumping:::\n");
	printf("start(%lu, %lu), count(%lu, %lu), stride(%lu, %lu), block(%lu, %lu)\n",
	    (unsigned long)start[0], (unsigned long)start[1], (unsigned long)count[0], (unsigned long)count[1],
	    (unsigned long)stride[0], (unsigned long)stride[1], (unsigned long)block[0], (unsigned long)block[1]);
	printf("original values:\n");
	ccdataset_print(start, block, original);
	printf("compared values:\n");
	ccdataset_print(start, block, dataset);
    }

    vrfyerrs = 0;

    for (k1=0;k1<count[0];k1++) {
        for(i=0;i<block[0];i++) {
            for(k2=0; k2<count[1];k2++) {
                for(j=0;j<block[1];j++) {
                    if (ALL != mem_selection) {
                        dataptr = dataset + ((start[0]+k1*stride[0]+i)*SPACE_DIM2+
                                             start[1]+k2*stride[1]+j);
                        oriptr =  original + ((start[0]+k1*stride[0]+i)*SPACE_DIM2+
                                              start[1]+k2*stride[1]+j);
                    }
                    else {
                        dataptr = dataset + k;
                        oriptr = original + k;
                        k++;
                    }
                    if (*dataptr != *oriptr){
                        if (vrfyerrs++ < MAX_ERR_REPORT || VERBOSE_MED){
                            printf("Dataset Verify failed at [%lu][%lu]: expect %d, got %d\n",
                                   (unsigned long)i, (unsigned long)j,
                                   *(original), *(dataset));
                        }
                    }
                }
            }
        }
    }
    if (vrfyerrs > MAX_ERR_REPORT && !VERBOSE_MED)
	printf("[more errors ...]\n");
    if (vrfyerrs)
	printf("%d errors found in ccdataset_vrfy\n", vrfyerrs);
    return(vrfyerrs);
}