1 /* 2 This provides a few of the MPI-uni functions that cannot be implemented 3 with C macros 4 */ 5 #include <petscsys.h> 6 #if !defined(MPIUNI_H) 7 #error "Wrong mpi.h included! require mpi.h from MPIUNI" 8 #endif 9 10 #include <petscdevice_cupm.h> 11 #include <petsc/private/petscimpl.h> 12 13 #define MPI_SUCCESS 0 14 #define MPI_FAILURE 1 15 16 void *MPIUNI_TMP = NULL; 17 18 /* 19 With MPI Uni there are exactly four distinct communicators: 20 MPI_COMM_SELF, MPI_COMM_WORLD, and a MPI_Comm_dup() of each of these (duplicates of duplicates return the same communictor) 21 22 MPI_COMM_SELF and MPI_COMM_WORLD are MPI_Comm_free() in MPI_Finalize() but in general with PETSc, 23 the other communicators are freed once the last PETSc object is freed (before MPI_Finalize()). 24 25 */ 26 #define MAX_ATTR 256 27 #define MAX_COMM 128 28 29 typedef struct { 30 void *attribute_val; 31 int active; 32 } MPI_Attr; 33 34 typedef struct { 35 void *extra_state; 36 MPI_Delete_function *del; 37 int active; /* Is this keyval in use by some comm? */ 38 } MPI_Attr_keyval; 39 40 static MPI_Attr_keyval attr_keyval[MAX_ATTR]; 41 static MPI_Attr attr[MAX_COMM][MAX_ATTR]; 42 static int comm_active[MAX_COMM]; /* Boolean array indicating which comms are in use */ 43 static int mpi_tag_ub = 100000000; 44 static int num_attr = 1; /* Maximal number of keyvals/attributes ever created, including the predefined MPI_TAG_UB attribute. */ 45 static int MaxComm = 2; /* Maximal number of communicators ever created, including comm_self(1), comm_world(2), but not comm_null(0) */ 46 static void *MPIUNIF_mpi_in_place = 0; 47 48 #define CommIdx(comm) ((comm) - 1) /* the communicator's internal index used in attr[idx][] and comm_active[idx]. comm_null does not occupy slots in attr[][] */ 49 50 #if defined(__cplusplus) 51 extern "C" { 52 #endif 53 54 /* 55 To avoid problems with prototypes to the system memcpy() it is duplicated here 56 */ 57 int MPIUNI_Memcpy(void *dst, const void *src, MPI_Count n) 58 { 59 if (dst == MPI_IN_PLACE || dst == MPIUNIF_mpi_in_place) return MPI_SUCCESS; 60 if (src == MPI_IN_PLACE || src == MPIUNIF_mpi_in_place) return MPI_SUCCESS; 61 if (!n) return MPI_SUCCESS; 62 63 /* GPU-aware MPIUNI. Use synchronous copy per MPI semantics */ 64 #if defined(PETSC_HAVE_CUDA) 65 if (PetscDeviceInitialized(PETSC_DEVICE_CUDA)) { 66 cudaError_t cerr = cudaMemcpy(dst, src, n, cudaMemcpyDefault); 67 if (cerr != cudaSuccess) return MPI_FAILURE; 68 } else 69 #elif defined(PETSC_HAVE_HIP) 70 if (PetscDeviceInitialized(PETSC_DEVICE_HIP)) { 71 hipError_t cerr = hipMemcpy(dst, src, n, hipMemcpyDefault); 72 if (cerr != hipSuccess) return MPI_FAILURE; 73 } else 74 #endif 75 { 76 (void)memcpy(dst, src, n); 77 } 78 return MPI_SUCCESS; 79 } 80 81 static int classcnt = 0; 82 static int codecnt = 0; 83 84 int MPI_Add_error_class(int *cl) 85 { 86 *cl = classcnt++; 87 return MPI_SUCCESS; 88 } 89 90 int MPI_Add_error_code(int cl, int *co) 91 { 92 if (cl >= classcnt) return MPI_FAILURE; 93 *co = codecnt++; 94 return MPI_SUCCESS; 95 } 96 97 int MPI_Type_get_envelope(MPI_Datatype datatype, int *num_integers, int *num_addresses, int *num_datatypes, int *combiner) 98 { 99 int comb = datatype >> 28; 100 switch (comb) { 101 case MPI_COMBINER_NAMED: 102 *num_integers = 0; 103 *num_addresses = 0; 104 *num_datatypes = 0; 105 *combiner = comb; 106 break; 107 case MPI_COMBINER_DUP: 108 *num_integers = 0; 109 *num_addresses = 0; 110 *num_datatypes = 1; 111 *combiner = comb; 112 break; 113 case MPI_COMBINER_CONTIGUOUS: 114 *num_integers = 1; 115 *num_addresses = 0; 116 *num_datatypes = 1; 117 *combiner = comb; 118 break; 119 default: 120 return MPIUni_Abort(MPI_COMM_SELF, 1); 121 } 122 return MPI_SUCCESS; 123 } 124 125 int MPI_Type_get_contents(MPI_Datatype datatype, int max_integers, int max_addresses, int max_datatypes, int *array_of_integers, MPI_Aint *array_of_addresses, MPI_Datatype *array_of_datatypes) 126 { 127 int comb = datatype >> 28; 128 switch (comb) { 129 case MPI_COMBINER_NAMED: 130 return MPIUni_Abort(MPI_COMM_SELF, 1); 131 case MPI_COMBINER_DUP: 132 if (max_datatypes < 1) return MPIUni_Abort(MPI_COMM_SELF, 1); 133 array_of_datatypes[0] = datatype & 0x0fffffff; 134 break; 135 case MPI_COMBINER_CONTIGUOUS: 136 if (max_integers < 1 || max_datatypes < 1) return MPIUni_Abort(MPI_COMM_SELF, 1); 137 array_of_integers[0] = (datatype >> 8) & 0xfff; /* count */ 138 array_of_datatypes[0] = (datatype & 0x0ff000ff) | 0x100; /* basic named type (count=1) from which the contiguous type is derived */ 139 break; 140 default: 141 return MPIUni_Abort(MPI_COMM_SELF, 1); 142 } 143 return MPI_SUCCESS; 144 } 145 146 /* 147 Used to set the built-in MPI_TAG_UB attribute 148 */ 149 static int Keyval_setup(void) 150 { 151 attr[CommIdx(MPI_COMM_WORLD)][0].active = 1; 152 attr[CommIdx(MPI_COMM_WORLD)][0].attribute_val = &mpi_tag_ub; 153 attr[CommIdx(MPI_COMM_SELF)][0].active = 1; 154 attr[CommIdx(MPI_COMM_SELF)][0].attribute_val = &mpi_tag_ub; 155 attr_keyval[0].active = 1; 156 return MPI_SUCCESS; 157 } 158 159 int MPI_Comm_create_keyval(PETSC_UNUSED MPI_Copy_function *copy_fn, PETSC_UNUSED MPI_Delete_function *delete_fn, int *keyval, void *extra_state) 160 { 161 int i, keyid; 162 163 (void)copy_fn; 164 (void)delete_fn; 165 for (i = 1; i < num_attr; i++) { /* the first attribute is always in use */ 166 if (!attr_keyval[i].active) { 167 keyid = i; 168 goto found; 169 } 170 } 171 if (num_attr >= MAX_ATTR) return MPIUni_Abort(MPI_COMM_WORLD, 1); 172 keyid = num_attr++; 173 174 found: 175 attr_keyval[keyid].extra_state = extra_state; 176 attr_keyval[keyid].del = delete_fn; 177 attr_keyval[keyid].active = 1; 178 *keyval = keyid; 179 return MPI_SUCCESS; 180 } 181 182 /* 183 The reference counting business is here to guard against the following: 184 185 MPI_Comm_set_attr(comm, keyval, some_attr); 186 MPI_Comm_free_keyval(&keyval); 187 MPI_Comm_free(&comm); 188 189 Here MPI_Comm_free() will try to destroy all of the attributes of the comm, and hence we 190 should not clear the deleter or extra_state until all communicators that have the attribute 191 set are either freed or have given up their attribute. 192 193 The attribute reference count is INCREASED in: 194 - MPI_Comm_create_keyval() 195 - MPI_Comm_set_attr() 196 197 The atrtibute reference count is DECREASED in: 198 - MPI_Comm_free_keyval() 199 - MPI_Comm_delete_attr() (but only if the comm has the attribute) 200 */ 201 static int MPI_Attr_dereference_keyval(int keyval) 202 { 203 if (--attr_keyval[keyval].active <= 0) { 204 attr_keyval[keyval].extra_state = 0; 205 attr_keyval[keyval].del = 0; 206 } 207 return MPI_SUCCESS; 208 } 209 210 static int MPI_Attr_reference_keyval(int keyval) 211 { 212 ++attr_keyval[keyval].active; 213 return MPI_SUCCESS; 214 } 215 216 int MPI_Comm_free_keyval(int *keyval) 217 { 218 int ret; 219 220 if (*keyval < 0 || *keyval >= num_attr) return MPI_FAILURE; 221 if ((ret = MPI_Attr_dereference_keyval(*keyval))) return ret; 222 *keyval = 0; 223 return MPI_SUCCESS; 224 } 225 226 int MPI_Comm_set_attr(MPI_Comm comm, int keyval, void *attribute_val) 227 { 228 int idx = CommIdx(comm), ret; 229 if (comm < 1 || comm > MaxComm) return MPI_FAILURE; 230 if (keyval < 0 || keyval >= num_attr) return MPI_FAILURE; 231 232 if ((ret = MPI_Comm_delete_attr(comm, keyval))) return ret; 233 if ((ret = MPI_Attr_reference_keyval(keyval))) return ret; 234 attr[idx][keyval].active = 1; 235 attr[idx][keyval].attribute_val = attribute_val; 236 return MPI_SUCCESS; 237 } 238 239 int MPI_Comm_delete_attr(MPI_Comm comm, int keyval) 240 { 241 int idx = CommIdx(comm); 242 if (comm < 1 || comm > MaxComm) return MPI_FAILURE; 243 if (keyval < 0 || keyval >= num_attr) return MPI_FAILURE; 244 if (attr[idx][keyval].active) { 245 int ret; 246 void *save_attribute_val = attr[idx][keyval].attribute_val; 247 248 attr[idx][keyval].active = 0; 249 attr[idx][keyval].attribute_val = 0; 250 if (attr_keyval[keyval].del) { 251 if ((ret = (*attr_keyval[keyval].del)(comm, keyval, save_attribute_val, attr_keyval[keyval].extra_state))) return ret; 252 } 253 if ((ret = MPI_Attr_dereference_keyval(keyval))) return ret; 254 } 255 return MPI_SUCCESS; 256 } 257 258 int MPI_Comm_get_attr(MPI_Comm comm, int keyval, void *attribute_val, int *flag) 259 { 260 int idx = CommIdx(comm); 261 if (comm < 1 || comm > MaxComm) return MPI_FAILURE; 262 if (!keyval) Keyval_setup(); 263 *flag = attr[idx][keyval].active; 264 *(void **)attribute_val = attr[idx][keyval].attribute_val; 265 return MPI_SUCCESS; 266 } 267 268 static char all_comm_names[MAX_COMM][MPI_MAX_OBJECT_NAME] = {"MPI_COMM_SELF", "MPI_COMM_WORLD"}; 269 270 int MPI_Comm_get_name(MPI_Comm comm, char *comm_name, int *resultlen) 271 { 272 if (comm < 1 || comm > MaxComm) return MPI_FAILURE; 273 if (!comm_name || !resultlen) return MPI_FAILURE; 274 (void)strncpy(comm_name, all_comm_names[CommIdx(comm)], MPI_MAX_OBJECT_NAME - 1); 275 *resultlen = (int)strlen(comm_name); 276 return MPI_SUCCESS; 277 } 278 279 int MPI_Comm_set_name(MPI_Comm comm, const char *comm_name) 280 { 281 if (comm < 1 || comm > MaxComm) return MPI_FAILURE; 282 if (!comm_name) return MPI_FAILURE; 283 if (strlen(comm_name) > MPI_MAX_OBJECT_NAME - 1) return MPI_FAILURE; 284 (void)strncpy(all_comm_names[CommIdx(comm)], comm_name, MPI_MAX_OBJECT_NAME - 1); 285 return MPI_SUCCESS; 286 } 287 288 int MPI_Comm_create(MPI_Comm comm, MPI_Group group, MPI_Comm *newcomm) 289 { 290 int j; 291 if (comm < 1 || comm > MaxComm) return MPI_FAILURE; 292 for (j = 3; j <= MaxComm; j++) { 293 if (!comm_active[CommIdx(j)]) { 294 comm_active[CommIdx(j)] = 1; 295 *newcomm = j; 296 return MPI_SUCCESS; 297 } 298 } 299 if (MaxComm >= MAX_COMM) return MPI_FAILURE; 300 *newcomm = ++MaxComm; 301 comm_active[CommIdx(*newcomm)] = 1; 302 return MPI_SUCCESS; 303 } 304 305 int MPI_Comm_dup(MPI_Comm comm, MPI_Comm *out) 306 { 307 int j; 308 if (comm < 1 || comm > MaxComm) return MPI_FAILURE; 309 for (j = 3; j <= MaxComm; j++) { 310 if (!comm_active[CommIdx(j)]) { 311 comm_active[CommIdx(j)] = 1; 312 *out = j; 313 return MPI_SUCCESS; 314 } 315 } 316 if (MaxComm >= MAX_COMM) return MPI_FAILURE; 317 *out = ++MaxComm; 318 comm_active[CommIdx(*out)] = 1; 319 return MPI_SUCCESS; 320 } 321 322 int MPI_Comm_free(MPI_Comm *comm) 323 { 324 int idx = CommIdx(*comm); 325 326 if (*comm < 1 || *comm > MaxComm) return MPI_FAILURE; 327 for (int i = 0; i < num_attr; i++) { 328 int ret = MPI_Comm_delete_attr(*comm, i); 329 330 if (ret) return ret; 331 } 332 if (*comm >= 3) comm_active[idx] = 0; 333 *comm = 0; 334 return MPI_SUCCESS; 335 } 336 337 int MPI_Comm_size(MPI_Comm comm, int *size) 338 { 339 if (comm < 1 || comm > MaxComm) return MPI_FAILURE; 340 *size = 1; 341 return MPI_SUCCESS; 342 } 343 344 int MPI_Comm_rank(MPI_Comm comm, int *rank) 345 { 346 if (comm < 1 || comm > MaxComm) return MPI_FAILURE; 347 *rank = 0; 348 return MPI_SUCCESS; 349 } 350 351 int MPIUni_Abort(MPI_Comm comm, int errorcode) 352 { 353 (void)printf("MPI operation not supported by PETSc's sequential MPI wrappers\n"); 354 return MPI_ERR_NOSUPPORT; 355 } 356 357 int MPI_Abort(MPI_Comm comm, int errorcode) 358 { 359 abort(); 360 return MPI_SUCCESS; 361 } 362 363 static int MPI_was_initialized = 0; 364 static int MPI_was_finalized = 0; 365 366 int MPI_Init(int *argc, char ***argv) 367 { 368 if (MPI_was_initialized) return MPI_FAILURE; 369 /* MPI standard says "once MPI_Finalize returns, no MPI routine (not even MPI_Init) may be called", so an MPI standard compliant 370 MPIU should have this 'if (MPI_was_finalized) return MPI_FAILURE;' check. We relax it here to make life easier for users 371 of MPIU so that they can do multiple PetscInitialize/Finalize(). 372 */ 373 /* if (MPI_was_finalized) return MPI_FAILURE; */ 374 MPI_was_initialized = 1; 375 MPI_was_finalized = 0; 376 return MPI_SUCCESS; 377 } 378 379 int MPI_Init_thread(int *argc, char ***argv, int required, int *provided) 380 { 381 MPI_Query_thread(provided); 382 return MPI_Init(argc, argv); 383 } 384 385 int MPI_Query_thread(int *provided) 386 { 387 *provided = MPI_THREAD_FUNNELED; 388 return MPI_SUCCESS; 389 } 390 391 int MPI_Finalize(void) 392 { 393 if (MPI_was_finalized || !MPI_was_initialized) return MPI_FAILURE; 394 MPI_Comm comm = MPI_COMM_WORLD; 395 int ret = MPI_Comm_free(&comm); 396 397 if (ret) return ret; 398 comm = MPI_COMM_SELF; 399 ret = MPI_Comm_free(&comm); 400 if (ret) return ret; 401 if (PetscDefined(USE_DEBUG)) { 402 for (int i = 3; i <= MaxComm; ++i) { 403 if (comm_active[CommIdx(i)]) printf("MPIUni warning: MPI communicator %d is not freed before MPI_Finalize()\n", i); 404 } 405 406 for (int i = 1; i <= MaxComm; ++i) { 407 for (int j = 0; j < num_attr; ++j) { 408 if (attr[CommIdx(i)][j].active) printf("MPIUni warning: MPI communicator %d attribute %d was not freed before MPI_Finalize()\n", i, j); 409 } 410 } 411 412 for (int i = 1; i < num_attr; ++i) { 413 if (attr_keyval[i].active) printf("MPIUni warning: MPI attribute %d was not freed before MPI_Finalize()\n", i); 414 } 415 } 416 417 /* reset counters */ 418 MaxComm = 2; 419 num_attr = 1; 420 MPI_was_finalized = 1; 421 MPI_was_initialized = 0; 422 PETSC_COMM_WORLD = MPI_COMM_NULL; 423 return MPI_SUCCESS; 424 } 425 426 int MPI_Initialized(int *flag) 427 { 428 *flag = MPI_was_initialized; 429 return MPI_SUCCESS; 430 } 431 432 int MPI_Finalized(int *flag) 433 { 434 *flag = MPI_was_finalized; 435 return MPI_SUCCESS; 436 } 437 438 int MPI_Win_free(MPI_Win *win) 439 { 440 free(*win); 441 *win = NULL; 442 return MPI_SUCCESS; 443 } 444 445 int MPI_Win_allocate_shared(size_t sz, size_t asz, MPI_Info info, MPI_Comm comm, void **addr, MPI_Win *win) 446 { 447 *win = *addr = malloc(sz); 448 return MPI_SUCCESS; 449 } 450 451 /* ------------------- Fortran versions of several routines ------------------ */ 452 453 #if defined(PETSC_HAVE_FORTRAN_CAPS) 454 #define mpiunisetmoduleblock_ MPIUNISETMODULEBLOCK 455 #define mpiunisetfortranbasepointers_ MPIUNISETFORTRANBASEPOINTERS 456 #define petsc_mpi_init_ PETSC_MPI_INIT 457 #define petsc_mpi_finalize_ PETSC_MPI_FINALIZE 458 #define petsc_mpi_comm_size_ PETSC_MPI_COMM_SIZE 459 #define petsc_mpi_comm_rank_ PETSC_MPI_COMM_RANK 460 #define petsc_mpi_abort_ PETSC_MPI_ABORT 461 #define petsc_mpi_reduce_ PETSC_MPI_REDUCE 462 #define petsc_mpi_allreduce_ PETSC_MPI_ALLREDUCE 463 #define petsc_mpi_barrier_ PETSC_MPI_BARRIER 464 #define petsc_mpi_bcast_ PETSC_MPI_BCAST 465 #define petsc_mpi_gather_ PETSC_MPI_GATHER 466 #define petsc_mpi_allgather_ PETSC_MPI_ALLGATHER 467 #define petsc_mpi_comm_split_ PETSC_MPI_COMM_SPLIT 468 #define petsc_mpi_scan_ PETSC_MPI_SCAN 469 #define petsc_mpi_send_ PETSC_MPI_SEND 470 #define petsc_mpi_recv_ PETSC_MPI_RECV 471 #define petsc_mpi_reduce_scatter_ PETSC_MPI_REDUCE_SCATTER 472 #define petsc_mpi_irecv_ PETSC_MPI_IRECV 473 #define petsc_mpi_isend_ PETSC_MPI_ISEND 474 #define petsc_mpi_sendrecv_ PETSC_MPI_SENDRECV 475 #define petsc_mpi_test_ PETSC_MPI_TEST 476 #define petsc_mpi_waitall_ PETSC_MPI_WAITALL 477 #define petsc_mpi_waitany_ PETSC_MPI_WAITANY 478 #define petsc_mpi_allgatherv_ PETSC_MPI_ALLGATHERV 479 #define petsc_mpi_alltoallv_ PETSC_MPI_ALLTOALLV 480 #define petsc_mpi_comm_create_ PETSC_MPI_COMM_CREATE 481 #define petsc_mpi_address_ PETSC_MPI_ADDRESS 482 #define petsc_mpi_pack_ PETSC_MPI_PACK 483 #define petsc_mpi_unpack_ PETSC_MPI_UNPACK 484 #define petsc_mpi_pack_size_ PETSC_MPI_PACK_SIZE 485 #define petsc_mpi_type_struct_ PETSC_MPI_TYPE_STRUCT 486 #define petsc_mpi_type_commit_ PETSC_MPI_TYPE_COMMIT 487 #define petsc_mpi_wtime_ PETSC_MPI_WTIME 488 #define petsc_mpi_cancel_ PETSC_MPI_CANCEL 489 #define petsc_mpi_comm_dup_ PETSC_MPI_COMM_DUP 490 #define petsc_mpi_comm_free_ PETSC_MPI_COMM_FREE 491 #define petsc_mpi_get_count_ PETSC_MPI_GET_COUNT 492 #define petsc_mpi_get_processor_name_ PETSC_MPI_GET_PROCESSOR_NAME 493 #define petsc_mpi_initialized_ PETSC_MPI_INITIALIZED 494 #define petsc_mpi_iprobe_ PETSC_MPI_IPROBE 495 #define petsc_mpi_probe_ PETSC_MPI_PROBE 496 #define petsc_mpi_request_free_ PETSC_MPI_REQUEST_FREE 497 #define petsc_mpi_ssend_ PETSC_MPI_SSEND 498 #define petsc_mpi_wait_ PETSC_MPI_WAIT 499 #define petsc_mpi_comm_group_ PETSC_MPI_COMM_GROUP 500 #define petsc_mpi_exscan_ PETSC_MPI_EXSCAN 501 #elif !defined(PETSC_HAVE_FORTRAN_UNDERSCORE) 502 #define mpiunisetmoduleblock_ mpiunisetmoduleblock 503 #define mpiunisetfortranbasepointers_ mpiunisetfortranbasepointers 504 #define petsc_mpi_init_ petsc_mpi_init 505 #define petsc_mpi_finalize_ petsc_mpi_finalize 506 #define petsc_mpi_comm_size_ petsc_mpi_comm_size 507 #define petsc_mpi_comm_rank_ petsc_mpi_comm_rank 508 #define petsc_mpi_abort_ petsc_mpi_abort 509 #define petsc_mpi_reduce_ petsc_mpi_reduce 510 #define petsc_mpi_allreduce_ petsc_mpi_allreduce 511 #define petsc_mpi_barrier_ petsc_mpi_barrier 512 #define petsc_mpi_bcast_ petsc_mpi_bcast 513 #define petsc_mpi_gather_ petsc_mpi_gather 514 #define petsc_mpi_allgather_ petsc_mpi_allgather 515 #define petsc_mpi_comm_split_ petsc_mpi_comm_split 516 #define petsc_mpi_scan_ petsc_mpi_scan 517 #define petsc_mpi_send_ petsc_mpi_send 518 #define petsc_mpi_recv_ petsc_mpi_recv 519 #define petsc_mpi_reduce_scatter_ petsc_mpi_reduce_scatter 520 #define petsc_mpi_irecv_ petsc_mpi_irecv 521 #define petsc_mpi_isend_ petsc_mpi_isend 522 #define petsc_mpi_sendrecv_ petsc_mpi_sendrecv 523 #define petsc_mpi_test_ petsc_mpi_test 524 #define petsc_mpi_waitall_ petsc_mpi_waitall 525 #define petsc_mpi_waitany_ petsc_mpi_waitany 526 #define petsc_mpi_allgatherv_ petsc_mpi_allgatherv 527 #define petsc_mpi_alltoallv_ petsc_mpi_alltoallv 528 #define petsc_mpi_comm_create_ petsc_mpi_comm_create 529 #define petsc_mpi_address_ petsc_mpi_address 530 #define petsc_mpi_pack_ petsc_mpi_pack 531 #define petsc_mpi_unpack_ petsc_mpi_unpack 532 #define petsc_mpi_pack_size_ petsc_mpi_pack_size 533 #define petsc_mpi_type_struct_ petsc_mpi_type_struct 534 #define petsc_mpi_type_commit_ petsc_mpi_type_commit 535 #define petsc_mpi_wtime_ petsc_mpi_wtime 536 #define petsc_mpi_cancel_ petsc_mpi_cancel 537 #define petsc_mpi_comm_dup_ petsc_mpi_comm_dup 538 #define petsc_mpi_comm_free_ petsc_mpi_comm_free 539 #define petsc_mpi_get_count_ petsc_mpi_get_count 540 #define petsc_mpi_get_processor_name_ petsc_mpi_get_processor_name 541 #define petsc_mpi_initialized_ petsc_mpi_initialized 542 #define petsc_mpi_iprobe_ petsc_mpi_iprobe 543 #define petsc_mpi_probe_ petsc_mpi_probe 544 #define petsc_mpi_request_free_ petsc_mpi_request_free 545 #define petsc_mpi_ssend_ petsc_mpi_ssend 546 #define petsc_mpi_wait_ petsc_mpi_wait 547 #define petsc_mpi_comm_group_ petsc_mpi_comm_group 548 #define petsc_mpi_exscan_ petsc_mpi_exscan 549 #endif 550 551 #if defined(PETSC_HAVE_FORTRAN_UNDERSCORE_UNDERSCORE) 552 #define petsc_mpi_init_ petsc_mpi_init__ 553 #define petsc_mpi_finalize_ petsc_mpi_finalize__ 554 #define petsc_mpi_comm_size_ petsc_mpi_comm_size__ 555 #define petsc_mpi_comm_rank_ petsc_mpi_comm_rank__ 556 #define petsc_mpi_abort_ petsc_mpi_abort__ 557 #define petsc_mpi_reduce_ petsc_mpi_reduce__ 558 #define petsc_mpi_allreduce_ petsc_mpi_allreduce__ 559 #define petsc_mpi_barrier_ petsc_mpi_barrier__ 560 #define petsc_mpi_bcast_ petsc_mpi_bcast__ 561 #define petsc_mpi_gather_ petsc_mpi_gather__ 562 #define petsc_mpi_allgather_ petsc_mpi_allgather__ 563 #define petsc_mpi_comm_split_ petsc_mpi_comm_split__ 564 #define petsc_mpi_scan_ petsc_mpi_scan__ 565 #define petsc_mpi_send_ petsc_mpi_send__ 566 #define petsc_mpi_recv_ petsc_mpi_recv__ 567 #define petsc_mpi_reduce_scatter_ petsc_mpi_reduce_scatter__ 568 #define petsc_mpi_irecv_ petsc_mpi_irecv__ 569 #define petsc_mpi_isend_ petsc_mpi_isend__ 570 #define petsc_mpi_sendrecv_ petsc_mpi_sendrecv__ 571 #define petsc_mpi_test_ petsc_mpi_test__ 572 #define petsc_mpi_waitall_ petsc_mpi_waitall__ 573 #define petsc_mpi_waitany_ petsc_mpi_waitany__ 574 #define petsc_mpi_allgatherv_ petsc_mpi_allgatherv__ 575 #define petsc_mpi_alltoallv_ petsc_mpi_alltoallv__ 576 #define petsc_mpi_comm_create_ petsc_mpi_comm_create__ 577 #define petsc_mpi_address_ petsc_mpi_address__ 578 #define petsc_mpi_pack_ petsc_mpi_pack__ 579 #define petsc_mpi_unpack_ petsc_mpi_unpack__ 580 #define petsc_mpi_pack_size_ petsc_mpi_pack_size__ 581 #define petsc_mpi_type_struct_ petsc_mpi_type_struct__ 582 #define petsc_mpi_type_commit_ petsc_mpi_type_commit__ 583 #define petsc_mpi_wtime_ petsc_mpi_wtime__ 584 #define petsc_mpi_cancel_ petsc_mpi_cancel__ 585 #define petsc_mpi_comm_dup_ petsc_mpi_comm_dup__ 586 #define petsc_mpi_comm_free_ petsc_mpi_comm_free__ 587 #define petsc_mpi_get_count_ petsc_mpi_get_count__ 588 #define petsc_mpi_get_processor_name_ petsc_mpi_get_processor_name__ 589 #define petsc_mpi_initialized_ petsc_mpi_initialized__ 590 #define petsc_mpi_iprobe_ petsc_mpi_iprobe__ 591 #define petsc_mpi_probe_ petsc_mpi_probe__ 592 #define petsc_mpi_request_free_ petsc_mpi_request_free__ 593 #define petsc_mpi_ssend_ petsc_mpi_ssend__ 594 #define petsc_mpi_wait_ petsc_mpi_wait__ 595 #define petsc_mpi_comm_group_ petsc_mpi_comm_group__ 596 #define petsc_mpi_exscan_ petsc_mpi_exscan__ 597 #endif 598 599 /* Do not build fortran interface if MPI namespace collision is to be avoided */ 600 #if defined(PETSC_USE_FORTRAN_BINDINGS) 601 602 PETSC_EXTERN void mpiunisetmoduleblock_(void); 603 604 PETSC_EXTERN void mpiunisetfortranbasepointers_(void *f_mpi_in_place) 605 { 606 MPIUNIF_mpi_in_place = f_mpi_in_place; 607 } 608 609 PETSC_EXTERN void petsc_mpi_init_(int *ierr) 610 { 611 mpiunisetmoduleblock_(); 612 *ierr = MPI_Init(NULL, NULL); 613 } 614 615 PETSC_EXTERN void petsc_mpi_finalize_(int *ierr) 616 { 617 *ierr = MPI_Finalize(); 618 } 619 620 PETSC_EXTERN void petsc_mpi_comm_size_(MPI_Comm *comm, int *size, int *ierr) 621 { 622 *size = 1; 623 *ierr = 0; 624 } 625 626 PETSC_EXTERN void petsc_mpi_comm_rank_(MPI_Comm *comm, int *rank, int *ierr) 627 { 628 *rank = 0; 629 *ierr = MPI_SUCCESS; 630 } 631 632 PETSC_EXTERN void petsc_mpi_comm_split_(MPI_Comm *comm, int *color, int *key, MPI_Comm *newcomm, int *ierr) 633 { 634 *newcomm = *comm; 635 *ierr = MPI_SUCCESS; 636 } 637 638 PETSC_EXTERN void petsc_mpi_abort_(MPI_Comm *comm, int *errorcode, int *ierr) 639 { 640 abort(); 641 *ierr = MPI_SUCCESS; 642 } 643 644 PETSC_EXTERN void petsc_mpi_reduce_(void *sendbuf, void *recvbuf, int *count, int *datatype, int *op, int *root, int *comm, int *ierr) 645 { 646 *ierr = MPI_Reduce(sendbuf, recvbuf, *count, *datatype, *op, *root, *comm); 647 } 648 649 PETSC_EXTERN void petsc_mpi_allreduce_(void *sendbuf, void *recvbuf, int *count, int *datatype, int *op, int *comm, int *ierr) 650 { 651 *ierr = MPI_Allreduce(sendbuf, recvbuf, *count, *datatype, *op, *comm); 652 } 653 654 PETSC_EXTERN void petsc_mpi_barrier_(MPI_Comm *comm, int *ierr) 655 { 656 *ierr = MPI_SUCCESS; 657 } 658 659 PETSC_EXTERN void petsc_mpi_bcast_(void *buf, int *count, int *datatype, int *root, int *comm, int *ierr) 660 { 661 *ierr = MPI_SUCCESS; 662 } 663 664 PETSC_EXTERN void petsc_mpi_gather_(void *sendbuf, int *scount, int *sdatatype, void *recvbuf, int *rcount, int *rdatatype, int *root, int *comm, int *ierr) 665 { 666 *ierr = MPI_Gather(sendbuf, *scount, *sdatatype, recvbuf, rcount, rdatatype, *root, *comm); 667 } 668 669 PETSC_EXTERN void petsc_mpi_allgather_(void *sendbuf, int *scount, int *sdatatype, void *recvbuf, int *rcount, int *rdatatype, int *comm, int *ierr) 670 { 671 *ierr = MPI_Allgather(sendbuf, *scount, *sdatatype, recvbuf, rcount, rdatatype, *comm); 672 } 673 674 PETSC_EXTERN void petsc_mpi_scan_(void *sendbuf, void *recvbuf, int *count, int *datatype, int *op, int *comm, int *ierr) 675 { 676 *ierr = MPIUNI_Memcpy(recvbuf, sendbuf, (*count) * MPI_sizeof(*datatype)); 677 } 678 679 PETSC_EXTERN void petsc_mpi_send_(void *buf, int *count, int *datatype, int *dest, int *tag, int *comm, int *ierr) 680 { 681 *ierr = MPIUni_Abort(MPI_COMM_WORLD, 0); 682 } 683 684 PETSC_EXTERN void petsc_mpi_recv_(void *buf, int *count, int *datatype, int *source, int *tag, int *comm, int status, int *ierr) 685 { 686 *ierr = MPIUni_Abort(MPI_COMM_WORLD, 0); 687 } 688 689 PETSC_EXTERN void petsc_mpi_reduce_scatter_(void *sendbuf, void *recvbuf, int *recvcounts, int *datatype, int *op, int *comm, int *ierr) 690 { 691 *ierr = MPIUni_Abort(MPI_COMM_WORLD, 0); 692 } 693 694 PETSC_EXTERN void petsc_mpi_irecv_(void *buf, int *count, int *datatype, int *source, int *tag, int *comm, int *request, int *ierr) 695 { 696 *ierr = MPIUni_Abort(MPI_COMM_WORLD, 0); 697 } 698 699 PETSC_EXTERN void petsc_mpi_isend_(void *buf, int *count, int *datatype, int *dest, int *tag, int *comm, int *request, int *ierr) 700 { 701 *ierr = MPIUni_Abort(MPI_COMM_WORLD, 0); 702 } 703 704 PETSC_EXTERN void petsc_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) 705 { 706 *ierr = MPIUNI_Memcpy(recvbuf, sendbuf, (*sendcount) * MPI_sizeof(*sendtype)); 707 } 708 709 PETSC_EXTERN void petsc_mpi_test_(int *request, int *flag, int *status, int *ierr) 710 { 711 *ierr = MPIUni_Abort(MPI_COMM_WORLD, 0); 712 } 713 714 PETSC_EXTERN void petsc_mpi_waitall_(int *count, int *array_of_requests, int *array_of_statuses, int *ierr) 715 { 716 *ierr = MPI_SUCCESS; 717 } 718 719 PETSC_EXTERN void petsc_mpi_waitany_(int *count, int *array_of_requests, int *index, int *status, int *ierr) 720 { 721 *ierr = MPI_SUCCESS; 722 } 723 724 PETSC_EXTERN void petsc_mpi_allgatherv_(void *sendbuf, int *sendcount, int *sendtype, void *recvbuf, int *recvcounts, int *displs, int *recvtype, int *comm, int *ierr) 725 { 726 *ierr = MPI_Allgatherv(sendbuf, *sendcount, *sendtype, recvbuf, recvcounts, displs, *recvtype, *comm); 727 } 728 729 PETSC_EXTERN void petsc_mpi_alltoallv_(void *sendbuf, int *sendcounts, int *sdispls, int *sendtype, void *recvbuf, int *recvcounts, int *rdispls, int *recvtype, int *comm, int *ierr) 730 { 731 *ierr = MPI_Alltoallv(sendbuf, sendcounts, sdispls, *sendtype, recvbuf, recvcounts, rdispls, *recvtype, *comm); 732 } 733 734 PETSC_EXTERN void petsc_mpi_comm_create_(int *comm, int *group, int *newcomm, int *ierr) 735 { 736 *newcomm = *comm; 737 *ierr = MPI_SUCCESS; 738 } 739 740 PETSC_EXTERN void petsc_mpi_address_(void *location, MPI_Aint *address, int *ierr) 741 { 742 *address = (MPI_Aint)((char *)location); 743 *ierr = MPI_SUCCESS; 744 } 745 746 PETSC_EXTERN void petsc_mpi_pack_(void *inbuf, int *incount, int *datatype, void *outbuf, int *outsize, int *position, int *comm, int *ierr) 747 { 748 *ierr = MPIUni_Abort(MPI_COMM_WORLD, 0); 749 } 750 751 PETSC_EXTERN void petsc_mpi_unpack_(void *inbuf, int *insize, int *position, void *outbuf, int *outcount, int *datatype, int *comm, int *ierr) 752 { 753 *ierr = MPIUni_Abort(MPI_COMM_WORLD, 0); 754 } 755 756 PETSC_EXTERN void petsc_mpi_pack_size_(int *incount, int *datatype, int *comm, int *size, int *ierr) 757 { 758 *ierr = MPIUni_Abort(MPI_COMM_WORLD, 0); 759 } 760 761 PETSC_EXTERN void petsc_mpi_type_struct_(int *count, int *array_of_blocklengths, int *array_of_displaments, int *array_of_types, int *newtype, int *ierr) 762 { 763 *ierr = MPIUni_Abort(MPI_COMM_WORLD, 0); 764 } 765 766 PETSC_EXTERN void petsc_mpi_type_commit_(int *datatype, int *ierr) 767 { 768 *ierr = MPI_SUCCESS; 769 } 770 771 double petsc_mpi_wtime_(void) 772 { 773 return 0.0; 774 } 775 776 PETSC_EXTERN void petsc_mpi_cancel_(int *request, int *ierr) 777 { 778 *ierr = MPI_SUCCESS; 779 } 780 781 PETSC_EXTERN void petsc_mpi_comm_dup_(int *comm, int *out, int *ierr) 782 { 783 *out = *comm; 784 *ierr = MPI_SUCCESS; 785 } 786 787 PETSC_EXTERN void petsc_mpi_comm_free_(int *comm, int *ierr) 788 { 789 *ierr = MPI_SUCCESS; 790 } 791 792 PETSC_EXTERN void petsc_mpi_get_count_(int *status, int *datatype, int *count, int *ierr) 793 { 794 *ierr = MPIUni_Abort(MPI_COMM_WORLD, 0); 795 } 796 797 PETSC_EXTERN void petsc_mpi_get_processor_name_(char *name, int *result_len, int *ierr, PETSC_FORTRAN_CHARLEN_T len) 798 { 799 MPIUNI_Memcpy(name, "localhost", 9 * sizeof(char)); 800 *result_len = 9; 801 *ierr = MPI_SUCCESS; 802 } 803 804 PETSC_EXTERN void petsc_mpi_initialized_(int *flag, int *ierr) 805 { 806 *flag = MPI_was_initialized; 807 *ierr = MPI_SUCCESS; 808 } 809 810 PETSC_EXTERN void petsc_mpi_iprobe_(int *source, int *tag, int *comm, int *glag, int *status, int *ierr) 811 { 812 *ierr = MPI_SUCCESS; 813 } 814 815 PETSC_EXTERN void petsc_mpi_probe_(int *source, int *tag, int *comm, int *flag, int *status, int *ierr) 816 { 817 *ierr = MPI_SUCCESS; 818 } 819 820 PETSC_EXTERN void petsc_mpi_request_free_(int *request, int *ierr) 821 { 822 *ierr = MPI_SUCCESS; 823 } 824 825 PETSC_EXTERN void petsc_mpi_ssend_(void *buf, int *count, int *datatype, int *dest, int *tag, int *comm, int *ierr) 826 { 827 *ierr = MPIUni_Abort(MPI_COMM_WORLD, 0); 828 } 829 830 PETSC_EXTERN void petsc_mpi_wait_(int *request, int *status, int *ierr) 831 { 832 *ierr = MPI_SUCCESS; 833 } 834 835 PETSC_EXTERN void petsc_mpi_comm_group_(int *comm, int *group, int *ierr) 836 { 837 *ierr = MPI_SUCCESS; 838 } 839 840 PETSC_EXTERN void petsc_mpi_exscan_(void *sendbuf, void *recvbuf, int *count, int *datatype, int *op, int *comm, int *ierr) 841 { 842 *ierr = MPI_SUCCESS; 843 } 844 845 #endif /* PETSC_USE_FORTRAN_BINDINGS */ 846 847 #if defined(__cplusplus) 848 } 849 #endif 850