1 /* 2 This provides a few of the MPI-uni functions that cannot be implemented 3 with C macros 4 */ 5 #include <mpiuni/mpi.h> 6 #if !defined(__MPIUNI_H) 7 #error "Wrong mpi.h included! require mpi.h from MPIUNI" 8 #endif 9 #if !defined(PETSC_STDCALL) 10 #define PETSC_STDCALL 11 #endif 12 #include <stdio.h> 13 #if defined(PETSC_HAVE_STDLIB_H) 14 #include <stdlib.h> 15 #endif 16 17 #define MPI_SUCCESS 0 18 #define MPI_FAILURE 1 19 void *MPIUNI_TMP = 0; 20 int MPIUNI_DATASIZE[10] = {sizeof(int),sizeof(float),sizeof(double),2*sizeof(double),sizeof(char),2*sizeof(int),4*sizeof(double),4,8,2*sizeof(double)}; 21 /* 22 With MPI Uni there is only one communicator, which is called 1. 23 */ 24 #define MAX_ATTR 128 25 26 typedef struct { 27 void *extra_state; 28 void *attribute_val; 29 int active; 30 MPI_Delete_function *del; 31 } MPI_Attr; 32 33 static MPI_Attr attr[MAX_ATTR]; 34 static int num_attr = 1,mpi_tag_ub = 100000000; 35 36 #if defined(__cplusplus) 37 extern "C" { 38 #endif 39 40 /* 41 To avoid problems with prototypes to the system memcpy() it is duplicated here 42 */ 43 int MPIUNI_Memcpy(void *a,const void* b,int n) { 44 int i; 45 char *aa= (char*)a; 46 char *bb= (char*)b; 47 48 if (b == MPI_IN_PLACE) return 0; 49 for (i=0; i<n; i++) aa[i] = bb[i]; 50 return 0; 51 } 52 53 /* 54 Used to set the built-in MPI_TAG_UB attribute 55 */ 56 static int Keyval_setup(void) 57 { 58 attr[0].active = 1; 59 attr[0].attribute_val = &mpi_tag_ub; 60 return 0; 61 } 62 63 int MPI_Keyval_create(MPI_Copy_function *copy_fn,MPI_Delete_function *delete_fn,int *keyval,void *extra_state) 64 { 65 if (num_attr >= MAX_ATTR) MPI_Abort(MPI_COMM_WORLD,1); 66 67 attr[num_attr].extra_state = extra_state; 68 attr[num_attr].del = delete_fn; 69 *keyval = num_attr++; 70 return 0; 71 } 72 73 int MPI_Keyval_free(int *keyval) 74 { 75 attr[*keyval].active = 0; 76 return MPI_SUCCESS; 77 } 78 79 int MPI_Attr_put(MPI_Comm comm,int keyval,void *attribute_val) 80 { 81 attr[keyval].active = 1; 82 attr[keyval].attribute_val = attribute_val; 83 return MPI_SUCCESS; 84 } 85 86 int MPI_Attr_delete(MPI_Comm comm,int keyval) 87 { 88 if (attr[keyval].active && attr[keyval].del) { 89 void* save_attribute_val = attr[keyval].attribute_val; 90 attr[keyval].active = 0; 91 attr[keyval].attribute_val = 0; 92 (*(attr[keyval].del))(comm,keyval,save_attribute_val,attr[keyval].extra_state); 93 } 94 return MPI_SUCCESS; 95 } 96 97 int MPI_Attr_get(MPI_Comm comm,int keyval,void *attribute_val,int *flag) 98 { 99 if (!keyval) Keyval_setup(); 100 *flag = attr[keyval].active; 101 *(void **)attribute_val = attr[keyval].attribute_val; 102 return MPI_SUCCESS; 103 } 104 105 static int dups = 0; 106 int MPI_Comm_create(MPI_Comm comm,MPI_Group group,MPI_Comm *newcomm) 107 { 108 dups++; 109 *newcomm = comm; 110 return MPI_SUCCESS; 111 } 112 113 int MPI_Comm_dup(MPI_Comm comm,MPI_Comm *out) 114 { 115 *out = comm; 116 dups++; 117 return 0; 118 } 119 120 int MPI_Comm_free(MPI_Comm *comm) 121 { 122 int i; 123 124 if (--dups) return MPI_SUCCESS; 125 for (i=0; i<num_attr; i++) { 126 if (attr[i].active && attr[i].del) { 127 (*attr[i].del)(*comm,i,attr[i].attribute_val,attr[i].extra_state); 128 } 129 attr[i].active = 0; 130 } 131 return MPI_SUCCESS; 132 } 133 134 int MPI_Comm_size(MPI_Comm comm, int*size) 135 { 136 *size=1; 137 return MPI_SUCCESS; 138 } 139 140 int MPI_Comm_rank(MPI_Comm comm, int*rank) 141 { 142 *rank=0; 143 return MPI_SUCCESS; 144 } 145 146 int MPI_Abort(MPI_Comm comm,int errorcode) 147 { 148 abort(); 149 return MPI_SUCCESS; 150 } 151 152 /* --------------------------------------------------------------------------*/ 153 154 static int MPI_was_initialized = 0; 155 static int MPI_was_finalized = 0; 156 157 int MPI_Init(int *argc, char ***argv) 158 { 159 if (MPI_was_initialized) return 1; 160 if (MPI_was_finalized) return 1; 161 MPI_was_initialized = 1; 162 return 0; 163 } 164 165 int MPI_Finalize(void) 166 { 167 if (MPI_was_finalized) return 1; 168 if (!MPI_was_initialized) return 1; 169 MPI_was_finalized = 1; 170 return 0; 171 } 172 173 int MPI_Initialized(int *flag) 174 { 175 *flag = MPI_was_initialized; 176 return 0; 177 } 178 179 int MPI_Finalized(int *flag) 180 { 181 *flag = MPI_was_finalized; 182 return 0; 183 } 184 185 /* ------------------- Fortran versions of several routines ------------------ */ 186 187 #if defined(PETSC_HAVE_FORTRAN_CAPS) 188 #define mpi_init_ MPI_INIT 189 #define mpi_finalize_ MPI_FINALIZE 190 #define mpi_comm_size_ MPI_COMM_SIZE 191 #define mpi_comm_rank_ MPI_COMM_RANK 192 #define mpi_abort_ MPI_ABORT 193 #define mpi_reduce_ MPI_REDUCE 194 #define mpi_allreduce_ MPI_ALLREDUCE 195 #define mpi_barrier_ MPI_BARRIER 196 #define mpi_bcast_ MPI_BCAST 197 #define mpi_gather_ MPI_GATHER 198 #define mpi_allgather_ MPI_ALLGATHER 199 #define mpi_comm_split_ MPI_COMM_SPLIT 200 #define mpi_scan_ MPI_SCAN 201 #define mpi_send_ MPI_SEND 202 #define mpi_recv_ MPI_RECV 203 #define mpi_reduce_scatter_ MPI_REDUCE_SCATTER 204 #define mpi_irecv_ MPI_IRECV 205 #define mpi_isend_ MPI_ISEND 206 #define mpi_sendrecv_ MPI_SENDRECV 207 #define mpi_test_ MPI_TEST 208 #define mpi_waitall_ MPI_WAITALL 209 #define mpi_waitany_ MPI_WAITANY 210 #define mpi_allgatherv_ MPI_ALLGATHERV 211 #define mpi_alltoallv_ MPI_ALLTOALLV 212 #define mpi_comm_create_ MPI_COMM_CREATE 213 #define mpi_address_ MPI_ADDRESS 214 #define mpi_pack_ MPI_PACK 215 #define mpi_unpack_ MPI_UNPACK 216 #define mpi_pack_size_ MPI_PACK_SIZE 217 #define mpi_type_struct_ MPI_TYPE_STRUCT 218 #define mpi_type_commit_ MPI_TYPE_COMMIT 219 #define mpi_wtime_ MPI_WTIME 220 #define mpi_cancel_ MPI_CANCEL 221 #define mpi_comm_dup_ MPI_COMM_DUP 222 #define mpi_comm_free_ MPI_COMM_FREE 223 #define mpi_get_count_ MPI_GET_COUNT 224 #define mpi_get_processor_name_ MPI_GET_PROCESSOR_NAME 225 #define mpi_initialized_ MPI_INITIALIZED 226 #define mpi_iprobe_ MPI_IPROBE 227 #define mpi_probe_ MPI_PROBE 228 #define mpi_request_free_ MPI_REQUEST_FREE 229 #define mpi_ssend_ MPI_SSEND 230 #define mpi_wait_ MPI_WAIT 231 #define mpi_comm_group_ MPI_COMM_GROUP 232 #define mpi_exscan_ MPI_EXSCAN 233 #elif !defined(PETSC_HAVE_FORTRAN_UNDERSCORE) 234 #define mpi_init_ mpi_init 235 #define mpi_finalize_ mpi_finalize 236 #define mpi_comm_size_ mpi_comm_size 237 #define mpi_comm_rank_ mpi_comm_rank 238 #define mpi_abort_ mpi_abort 239 #define mpi_reduce_ mpi_reduce 240 #define mpi_allreduce_ mpi_allreduce 241 #define mpi_barrier_ mpi_barrier 242 #define mpi_bcast_ mpi_bcast 243 #define mpi_gather_ mpi_gather 244 #define mpi_allgather_ mpi_allgather 245 #define mpi_comm_split_ mpi_comm_split 246 #define mpi_scan_ mpi_scan 247 #define mpi_send_ mpi_send 248 #define mpi_recv_ mpi_recv 249 #define mpi_reduce_scatter_ mpi_reduce_scatter 250 #define mpi_irecv_ mpi_irecv 251 #define mpi_isend_ mpi_isend 252 #define mpi_sendrecv_ mpi_sendrecv 253 #define mpi_test_ mpi_test 254 #define mpi_waitall_ mpi_waitall 255 #define mpi_waitany_ mpi_waitany 256 #define mpi_allgatherv_ mpi_allgatherv 257 #define mpi_alltoallv_ mpi_alltoallv 258 #define mpi_comm_create_ mpi_comm_create 259 #define mpi_address_ mpi_address 260 #define mpi_pack_ mpi_pack 261 #define mpi_unpack_ mpi_unpack 262 #define mpi_pack_size_ mpi_pack_size 263 #define mpi_type_struct_ mpi_type_struct 264 #define mpi_type_commit_ mpi_type_commit 265 #define mpi_wtime_ mpi_wtime 266 #define mpi_cancel_ mpi_cancel 267 #define mpi_comm_dup_ mpi_comm_dup 268 #define mpi_comm_free_ mpi_comm_free 269 #define mpi_get_count_ mpi_get_count 270 #define mpi_get_processor_name_ mpi_get_processor_name 271 #define mpi_initialized_ mpi_initialized 272 #define mpi_iprobe_ mpi_iprobe 273 #define mpi_probe_ mpi_probe 274 #define mpi_request_free_ mpi_request_free 275 #define mpi_ssend_ mpi_ssend 276 #define mpi_wait_ mpi_wait 277 #define mpi_comm_group_ mpi_comm_group 278 #define mpi_exscan_ mpi_exscan 279 #endif 280 281 #if defined(PETSC_HAVE_FORTRAN_UNDERSCORE_UNDERSCORE) 282 #define mpi_init_ mpi_init__ 283 #define mpi_finalize_ mpi_finalize__ 284 #define mpi_comm_size_ mpi_comm_size__ 285 #define mpi_comm_rank_ mpi_comm_rank__ 286 #define mpi_abort_ mpi_abort__ 287 #define mpi_reduce_ mpi_reduce__ 288 #define mpi_allreduce_ mpi_allreduce__ 289 #define mpi_barrier_ mpi_barrier__ 290 #define mpi_bcast_ mpi_bcast__ 291 #define mpi_gather_ mpi_gather__ 292 #define mpi_allgather_ mpi_allgather__ 293 #define mpi_comm_split_ mpi_comm_split__ 294 #define mpi_scan_ mpi_scan__ 295 #define mpi_send_ mpi_send__ 296 #define mpi_recv_ mpi_recv__ 297 #define mpi_reduce_scatter_ mpi_reduce_scatter__ 298 #define mpi_irecv_ mpi_irecv__ 299 #define mpi_isend_ mpi_isend__ 300 #define mpi_sendrecv_ mpi_sendrecv__ 301 #define mpi_test_ mpi_test__ 302 #define mpi_waitall_ mpi_waitall__ 303 #define mpi_waitany_ mpi_waitany__ 304 #define mpi_allgatherv_ mpi_allgatherv__ 305 #define mpi_alltoallv_ mpi_alltoallv__ 306 #define mpi_comm_create_ mpi_comm_create__ 307 #define mpi_address_ mpi_address__ 308 #define mpi_pack_ mpi_pack__ 309 #define mpi_unpack_ mpi_unpack__ 310 #define mpi_pack_size_ mpi_pack_size__ 311 #define mpi_type_struct_ mpi_type_struct__ 312 #define mpi_type_commit_ mpi_type_commit__ 313 #define mpi_wtime_ mpi_wtime__ 314 #define mpi_cancel_ mpi_cancel__ 315 #define mpi_comm_dup_ mpi_comm_dup__ 316 #define mpi_comm_free_ mpi_comm_free__ 317 #define mpi_get_count_ mpi_get_count__ 318 #define mpi_get_processor_name_ mpi_get_processor_name__ 319 #define mpi_initialized_ mpi_initialized__ 320 #define mpi_iprobe_ mpi_iprobe__ 321 #define mpi_probe_ mpi_probe__ 322 #define mpi_request_free_ mpi_request_free__ 323 #define mpi_ssend_ mpi_ssend__ 324 #define mpi_wait_ mpi_wait__ 325 #define mpi_comm_group_ mpi_comm_group__ 326 #define mpi_exscan_ mpi_exscan__ 327 #endif 328 329 330 /* Do not build fortran interface if MPI namespace colision is to be avoided */ 331 #if !defined(MPIUNI_AVOID_MPI_NAMESPACE) 332 333 void PETSC_STDCALL mpi_init_(int *ierr) 334 { 335 *ierr = MPI_Init((int*)0, (char***)0); 336 } 337 338 void PETSC_STDCALL mpi_finalize_(int *ierr) 339 { 340 *ierr = MPI_Finalize(); 341 } 342 343 void PETSC_STDCALL mpi_comm_size_(MPI_Comm *comm,int *size,int *ierr) 344 { 345 *size = 1; 346 *ierr = 0; 347 } 348 349 void PETSC_STDCALL mpi_comm_rank_(MPI_Comm *comm,int *rank,int *ierr) 350 { 351 *rank=0; 352 *ierr=MPI_SUCCESS; 353 } 354 355 void PETSC_STDCALL mpi_comm_split_(MPI_Comm *comm,int *color,int *key, MPI_Comm *newcomm, int *ierr) 356 { 357 *newcomm = *comm; 358 *ierr=MPI_SUCCESS; 359 } 360 361 void PETSC_STDCALL mpi_abort_(MPI_Comm *comm,int *errorcode,int *ierr) 362 { 363 abort(); 364 *ierr = MPI_SUCCESS; 365 } 366 367 void PETSC_STDCALL mpi_reduce_(void *sendbuf,void *recvbuf,int *count,int *datatype,int *op,int *root,int *comm,int *ierr) 368 { 369 MPIUNI_Memcpy(recvbuf,sendbuf,(*count)*MPIUNI_DATASIZE[*datatype]); 370 *ierr = MPI_SUCCESS; 371 } 372 373 void PETSC_STDCALL mpi_allreduce_(void *sendbuf,void *recvbuf,int *count,int *datatype,int *op,int *comm,int *ierr) 374 { 375 MPIUNI_Memcpy(recvbuf,sendbuf,(*count)*MPIUNI_DATASIZE[*datatype]); 376 *ierr = MPI_SUCCESS; 377 } 378 379 void PETSC_STDCALL mpi_barrier_(MPI_Comm *comm,int *ierr) 380 { 381 *ierr = MPI_SUCCESS; 382 } 383 384 void PETSC_STDCALL mpi_bcast_(void *buf,int *count,int *datatype,int *root,int *comm,int *ierr) 385 { 386 *ierr = MPI_SUCCESS; 387 } 388 389 390 void PETSC_STDCALL mpi_gather_(void *sendbuf,int *scount,int *sdatatype, void* recvbuf, int* rcount, int* rdatatype, int *root,int *comm,int *ierr) 391 { 392 MPIUNI_Memcpy(recvbuf,sendbuf,(*scount)*MPIUNI_DATASIZE[*sdatatype]); 393 *ierr = MPI_SUCCESS; 394 } 395 396 void PETSC_STDCALL mpi_allgather_(void *sendbuf,int *scount,int *sdatatype, void* recvbuf, int* rcount, int* rdatatype,int *comm,int *ierr) 397 { 398 MPIUNI_Memcpy(recvbuf,sendbuf,(*scount)*MPIUNI_DATASIZE[*sdatatype]); 399 *ierr = MPI_SUCCESS; 400 } 401 402 void PETSC_STDCALL mpi_scan_(void *sendbuf,void *recvbuf,int *count,int *datatype,int *op,int *comm,int *ierr) 403 { 404 MPIUNI_Memcpy(recvbuf,sendbuf,(*count)*MPIUNI_DATASIZE[*datatype]); 405 *ierr = MPI_SUCCESS; 406 } 407 408 void PETSC_STDCALL mpi_send_(void*buf,int *count,int *datatype,int *dest,int *tag,int *comm,int *ierr ) 409 { 410 *ierr = MPI_Abort(MPI_COMM_WORLD,0); 411 } 412 413 void PETSC_STDCALL mpi_recv_(void*buf,int *count,int *datatype,int *source,int *tag,int *comm,int status,int *ierr ) 414 { 415 *ierr = MPI_Abort(MPI_COMM_WORLD,0); 416 } 417 418 void PETSC_STDCALL mpi_reduce_scatter_(void*sendbuf,void*recvbuf,int *recvcounts,int *datatype,int *op,int *comm,int *ierr) 419 { 420 *ierr = MPI_Abort(MPI_COMM_WORLD,0); 421 } 422 423 void PETSC_STDCALL mpi_irecv_(void*buf,int *count, int *datatype, int *source, int *tag, int *comm, int *request, int *ierr) 424 { 425 *ierr = MPI_Abort(MPI_COMM_WORLD,0); 426 } 427 428 void PETSC_STDCALL mpi_isend_(void*buf,int *count,int *datatype,int *dest,int *tag,int *comm,int *request, int *ierr) 429 { 430 *ierr = MPI_Abort(MPI_COMM_WORLD,0); 431 } 432 433 void PETSC_STDCALL mpi_sendrecv_(void*sendbuf,int *sendcount,int *sendtype,int *dest,int *sendtag,void*recvbuf,int *recvcount,int *recvtype,int *source,int *recvtag,int *comm,int *status,int *ierr) 434 { 435 MPIUNI_Memcpy(recvbuf,sendbuf,(*sendcount)*MPIUNI_DATASIZE[*sendtype]); 436 *ierr = MPI_SUCCESS; 437 } 438 439 void PETSC_STDCALL mpi_test_(int *request,int *flag,int *status,int *ierr) 440 { 441 *ierr = MPI_Abort(MPI_COMM_WORLD,0); 442 } 443 444 void PETSC_STDCALL mpi_waitall_(int *count,int *array_of_requests,int *array_of_statuses,int *ierr) 445 { 446 *ierr = MPI_SUCCESS; 447 } 448 449 void PETSC_STDCALL mpi_waitany_(int *count,int *array_of_requests,int * index, int *status,int *ierr) 450 { 451 *ierr = MPI_SUCCESS; 452 } 453 454 void PETSC_STDCALL mpi_allgatherv_(void*sendbuf,int *sendcount,int *sendtype,void*recvbuf,int *recvcounts,int *displs,int *recvtype,int *comm,int *ierr) 455 { 456 MPIUNI_Memcpy(recvbuf,sendbuf,(*sendcount)*MPIUNI_DATASIZE[*sendtype]); 457 *ierr = MPI_SUCCESS; 458 } 459 460 void PETSC_STDCALL mpi_alltoallv_(void*sendbuf,int *sendcounts,int *sdispls,int *sendtype,void*recvbuf,int *recvcounts,int *rdispls,int *recvtype,int *comm,int *ierr) 461 { 462 MPIUNI_Memcpy(recvbuf,sendbuf,(*sendcounts)*MPIUNI_DATASIZE[*sendtype]); 463 *ierr = MPI_SUCCESS; 464 } 465 466 void PETSC_STDCALL mpi_comm_create_(int *comm,int *group,int *newcomm,int *ierr) 467 { 468 *newcomm = *comm; 469 *ierr = MPI_SUCCESS; 470 } 471 472 void PETSC_STDCALL mpi_address_(void*location,MPIUNI_INTPTR *address,int *ierr) 473 { 474 *address = (MPIUNI_INTPTR) location; 475 *ierr = MPI_SUCCESS; 476 } 477 478 void PETSC_STDCALL mpi_pack_(void*inbuf,int *incount,int *datatype,void*outbuf,int *outsize,int *position,int *comm,int *ierr) 479 { 480 *ierr = MPI_Abort(MPI_COMM_WORLD,0); 481 } 482 483 void PETSC_STDCALL mpi_unpack_(void*inbuf,int *insize,int *position,void*outbuf,int *outcount,int *datatype,int *comm,int *ierr) 484 { 485 *ierr = MPI_Abort(MPI_COMM_WORLD,0); 486 } 487 488 void PETSC_STDCALL mpi_pack_size_(int *incount,int *datatype,int *comm,int *size,int *ierr) 489 { 490 *ierr = MPI_Abort(MPI_COMM_WORLD,0); 491 } 492 493 void PETSC_STDCALL mpi_type_struct_(int *count,int *array_of_blocklengths,int * array_of_displaments,int *array_of_types,int *newtype,int *ierr) 494 { 495 *ierr = MPI_Abort(MPI_COMM_WORLD,0); 496 } 497 498 void PETSC_STDCALL mpi_type_commit_(int *datatype,int *ierr) 499 { 500 *ierr = MPI_SUCCESS; 501 } 502 503 double PETSC_STDCALL mpi_wtime_(void) 504 { 505 return 0.0; 506 } 507 508 void PETSC_STDCALL mpi_cancel_(int *request,int *ierr) 509 { 510 *ierr = MPI_SUCCESS; 511 } 512 513 void PETSC_STDCALL mpi_comm_dup_(int *comm,int *out,int *ierr) 514 { 515 *out = *comm; 516 *ierr = MPI_SUCCESS; 517 } 518 519 void PETSC_STDCALL mpi_comm_free_(int *comm,int *ierr) 520 { 521 *ierr = MPI_SUCCESS; 522 } 523 524 void PETSC_STDCALL mpi_get_count_(int *status,int *datatype,int *count,int *ierr) 525 { 526 *ierr = MPI_Abort(MPI_COMM_WORLD,0); 527 } 528 529 /* duplicate from fortranimpl.h */ 530 #if defined(PETSC_HAVE_FORTRAN_MIXED_STR_ARG) 531 #define PETSC_MIXED_LEN(len) ,int len 532 #define PETSC_END_LEN(len) 533 #else 534 #define PETSC_MIXED_LEN(len) 535 #define PETSC_END_LEN(len) ,int len 536 #endif 537 538 void PETSC_STDCALL mpi_get_processor_name_(char *name PETSC_MIXED_LEN(len),int *result_len,int *ierr PETSC_END_LEN(len)) 539 { 540 MPIUNI_Memcpy(name,"localhost",9*sizeof(char)); 541 *result_len = 9; 542 *ierr = MPI_SUCCESS; 543 } 544 545 void PETSC_STDCALL mpi_initialized_(int *flag,int *ierr) 546 { 547 *flag = MPI_was_initialized; 548 *ierr = MPI_SUCCESS; 549 } 550 551 void PETSC_STDCALL mpi_iprobe_(int *source,int *tag,int *comm,int *glag,int *status,int *ierr) 552 { 553 *ierr = MPI_SUCCESS; 554 } 555 556 void PETSC_STDCALL mpi_probe_(int *source,int *tag,int *comm,int *flag,int *status,int *ierr) 557 { 558 *ierr = MPI_SUCCESS; 559 } 560 561 void PETSC_STDCALL mpi_request_free_(int *request,int *ierr) 562 { 563 *ierr = MPI_SUCCESS; 564 } 565 566 void PETSC_STDCALL mpi_ssend_(void*buf,int *count,int *datatype,int *dest,int *tag,int *comm,int *ierr) 567 { 568 *ierr = MPI_Abort(MPI_COMM_WORLD,0); 569 } 570 571 void PETSC_STDCALL mpi_wait_(int *request,int *status,int *ierr) 572 { 573 *ierr = MPI_SUCCESS; 574 } 575 576 void PETSC_STDCALL mpi_comm_group_(int*comm,int*group,int *ierr) 577 { 578 *ierr = MPI_SUCCESS; 579 } 580 581 void PETSC_STDCALL mpi_exscan_(void*sendbuf,void*recvbuf,int*count,int*datatype,int*op,int*comm,int*ierr) 582 { 583 *ierr = MPI_SUCCESS; 584 } 585 586 #endif /* MPIUNI_AVOID_MPI_NAMESPACE */ 587 588 #if defined(__cplusplus) 589 } 590 #endif 591