Actual source code: mpi.c
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
10: #include <petsc/private/petscimpl.h>
12: #if defined(PETSC_HAVE_CUDA)
13: #include <cuda_runtime.h>
14: #endif
16: #if defined(PETSC_HAVE_HIP)
17: #include <hip/hip_runtime.h>
18: #endif
20: #define MPI_SUCCESS 0
21: #define MPI_FAILURE 1
23: void *MPIUNI_TMP = NULL;
25: /*
26: With MPI Uni there are exactly four distinct communicators:
27: MPI_COMM_SELF, MPI_COMM_WORLD, and a MPI_Comm_dup() of each of these (duplicates of duplicates return the same communictor)
29: MPI_COMM_SELF and MPI_COMM_WORLD are MPI_Comm_free() in MPI_Finalize() but in general with PETSc,
30: the other communicators are freed once the last PETSc object is freed (before MPI_Finalize()).
32: */
33: #define MAX_ATTR 256
34: #define MAX_COMM 128
36: typedef struct {
37: void *attribute_val;
38: int active;
39: } MPI_Attr;
41: typedef struct {
42: void *extra_state;
43: MPI_Delete_function *del;
44: int active; /* Is this keyval in use by some comm? */
45: } MPI_Attr_keyval;
47: static MPI_Attr_keyval attr_keyval[MAX_ATTR];
48: static MPI_Attr attr[MAX_COMM][MAX_ATTR];
49: static int comm_active[MAX_COMM]; /* Boolean array indicating which comms are in use */
50: static int mpi_tag_ub = 100000000;
51: static int num_attr = 1; /* Maximal number of keyvals/attributes ever created, including the predefined MPI_TAG_UB attribute. */
52: static int MaxComm = 2; /* Maximal number of communicators ever created, including comm_self(1), comm_world(2), but not comm_null(0) */
53: static void* MPIUNIF_mpi_in_place = 0;
55: #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[][] */
57: #if defined(__cplusplus)
58: extern "C" {
59: #endif
61: /*
62: To avoid problems with prototypes to the system memcpy() it is duplicated here
63: */
64: int MPIUNI_Memcpy(void *dst,const void *src,int n)
65: {
66: if (dst == MPI_IN_PLACE || dst == MPIUNIF_mpi_in_place) return MPI_SUCCESS;
67: if (src == MPI_IN_PLACE || src == MPIUNIF_mpi_in_place) return MPI_SUCCESS;
68: if (!n) return MPI_SUCCESS;
70: /* GPU-aware MPIUNI. Use synchronous copy per MPI semantics */
71: #if defined(PETSC_HAVE_CUDA)
72: if (PetscCUDAInitialized) {cudaError_t cerr = cudaMemcpy(dst,src,n,cudaMemcpyDefault);if (cerr != cudaSuccess) return MPI_FAILURE;} else
73: #elif defined(PETSC_HAVE_HIP)
74: if (PetscHIPInitialized) {hipError_t cerr = hipMemcpy(dst,src,n,hipMemcpyDefault); if (cerr != hipSuccess) return MPI_FAILURE;} else
75: #endif
76: {memcpy(dst,src,n);}
77: return MPI_SUCCESS;
78: }
80: static int classcnt = 0;
81: static int codecnt = 0;
83: int MPI_Add_error_class(int *cl)
84: {
85: *cl = classcnt++;
86: return MPI_SUCCESS;
87: }
89: int MPI_Add_error_code(int cl,int *co)
90: {
91: if (cl >= classcnt) return MPI_FAILURE;
92: *co = codecnt++;
93: return MPI_SUCCESS;
94: }
96: int MPI_Type_get_envelope(MPI_Datatype datatype,int *num_integers,int *num_addresses,int *num_datatypes,int *combiner)
97: {
98: int comb = datatype >> 28;
99: switch (comb) {
100: case MPI_COMBINER_NAMED:
101: *num_integers = 0;
102: *num_addresses = 0;
103: *num_datatypes = 0;
104: *combiner = comb;
105: break;
106: case MPI_COMBINER_DUP:
107: *num_integers = 0;
108: *num_addresses = 0;
109: *num_datatypes = 1;
110: *combiner = comb;
111: break;
112: case MPI_COMBINER_CONTIGUOUS:
113: *num_integers = 1;
114: *num_addresses = 0;
115: *num_datatypes = 1;
116: *combiner = comb;
117: break;
118: default:
119: return MPIUni_Abort(MPI_COMM_SELF,1);
120: }
121: return MPI_SUCCESS;
122: }
124: 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)
125: {
126: int comb = datatype >> 28;
127: switch (comb) {
128: case MPI_COMBINER_NAMED:
129: return MPIUni_Abort(MPI_COMM_SELF,1);
130: case MPI_COMBINER_DUP:
131: if (max_datatypes < 1) return MPIUni_Abort(MPI_COMM_SELF,1);
132: array_of_datatypes[0] = datatype & 0x0fffffff;
133: break;
134: case MPI_COMBINER_CONTIGUOUS:
135: if (max_integers < 1 || max_datatypes < 1) return MPIUni_Abort(MPI_COMM_SELF,1);
136: array_of_integers[0] = (datatype >> 8) & 0xfff; /* count */
137: array_of_datatypes[0] = (datatype & 0x0ff000ff) | 0x100; /* basic named type (count=1) from which the contiguous type is derived */
138: break;
139: default:
140: return MPIUni_Abort(MPI_COMM_SELF,1);
141: }
142: return MPI_SUCCESS;
143: }
145: /*
146: Used to set the built-in MPI_TAG_UB attribute
147: */
148: static int Keyval_setup(void)
149: {
150: attr[CommIdx(MPI_COMM_WORLD)][0].active = 1;
151: attr[CommIdx(MPI_COMM_WORLD)][0].attribute_val = &mpi_tag_ub;
152: attr[CommIdx(MPI_COMM_SELF)][0].active = 1;
153: attr[CommIdx(MPI_COMM_SELF)][0].attribute_val = &mpi_tag_ub;
154: attr_keyval[0].active = 1;
155: return MPI_SUCCESS;
156: }
158: int MPI_Comm_create_keyval(MPI_Copy_function *copy_fn,MPI_Delete_function *delete_fn,int *keyval,void *extra_state)
159: {
160: int i,keyid;
161: for (i=1; i<num_attr; i++) { /* the first attribute is always in use */
162: if (!attr_keyval[i].active) {
163: keyid = i;
164: goto found;
165: }
166: }
167: if (num_attr >= MAX_ATTR) return MPIUni_Abort(MPI_COMM_WORLD,1);
168: keyid = num_attr++;
170: found:
171: attr_keyval[keyid].extra_state = extra_state;
172: attr_keyval[keyid].del = delete_fn;
173: attr_keyval[keyid].active = 1;
174: *keyval = keyid;
175: return MPI_SUCCESS;
176: }
178: int MPI_Comm_free_keyval(int *keyval)
179: {
180: attr_keyval[*keyval].extra_state = 0;
181: attr_keyval[*keyval].del = 0;
182: attr_keyval[*keyval].active = 0;
183: *keyval = 0;
184: return MPI_SUCCESS;
185: }
187: int MPI_Comm_set_attr(MPI_Comm comm,int keyval,void *attribute_val)
188: {
189: int idx = CommIdx(comm);
190: if (comm < 1 || comm > MaxComm) return MPI_FAILURE;
191: attr[idx][keyval].active = 1;
192: attr[idx][keyval].attribute_val = attribute_val;
193: return MPI_SUCCESS;
194: }
196: int MPI_Comm_delete_attr(MPI_Comm comm,int keyval)
197: {
198: int idx = CommIdx(comm);
199: if (comm < 1 || comm > MaxComm) return MPI_FAILURE;
200: if (attr[idx][keyval].active && attr_keyval[keyval].del) {
201: void *save_attribute_val = attr[idx][keyval].attribute_val;
202: attr[idx][keyval].active = 0;
203: attr[idx][keyval].attribute_val = 0;
204: (*(attr_keyval[keyval].del))(comm,keyval,save_attribute_val,attr_keyval[keyval].extra_state);
205: }
206: return MPI_SUCCESS;
207: }
209: int MPI_Comm_get_attr(MPI_Comm comm,int keyval,void *attribute_val,int *flag)
210: {
211: int idx = CommIdx(comm);
212: if (comm < 1 || comm > MaxComm) return MPI_FAILURE;
213: if (!keyval) Keyval_setup();
214: *flag = attr[idx][keyval].active;
215: *(void**)attribute_val = attr[idx][keyval].attribute_val;
216: return MPI_SUCCESS;
217: }
219: int MPI_Comm_create(MPI_Comm comm,MPI_Group group,MPI_Comm *newcomm)
220: {
221: int j;
222: if (comm < 1 || comm > MaxComm) return MPI_FAILURE;
223: for (j=3; j<=MaxComm; j++) {
224: if (!comm_active[CommIdx(j)]) {
225: comm_active[CommIdx(j)] = 1;
226: *newcomm = j;
227: return MPI_SUCCESS;
228: }
229: }
230: if (MaxComm >= MAX_COMM) return MPI_FAILURE;
231: *newcomm = ++MaxComm;
232: comm_active[CommIdx(*newcomm)] = 1;
233: return MPI_SUCCESS;
234: }
236: int MPI_Comm_dup(MPI_Comm comm,MPI_Comm *out)
237: {
238: int j;
239: if (comm < 1 || comm > MaxComm) return MPI_FAILURE;
240: for (j=3; j<=MaxComm; j++) {
241: if (!comm_active[CommIdx(j)]) {
242: comm_active[CommIdx(j)] = 1;
243: *out = j;
244: return MPI_SUCCESS;
245: }
246: }
247: if (MaxComm >= MAX_COMM) return MPI_FAILURE;
248: *out = ++MaxComm;
249: comm_active[CommIdx(*out)] = 1;
250: return MPI_SUCCESS;
251: }
253: int MPI_Comm_free(MPI_Comm *comm)
254: {
255: int i;
256: int idx = CommIdx(*comm);
258: if (*comm < 1 || *comm > MaxComm) return MPI_FAILURE;
259: for (i=0; i<num_attr; i++) {
260: if (attr[idx][i].active && attr_keyval[i].del) (*attr_keyval[i].del)(*comm,i,attr[idx][i].attribute_val,attr_keyval[i].extra_state);
261: attr[idx][i].active = 0;
262: attr[idx][i].attribute_val = 0;
263: }
264: if (*comm >= 3) comm_active[idx] = 0;
265: *comm = 0;
266: return MPI_SUCCESS;
267: }
269: int MPI_Comm_size(MPI_Comm comm, int *size)
270: {
271: if (comm < 1 || comm > MaxComm) return MPI_FAILURE;
272: *size=1;
273: return MPI_SUCCESS;
274: }
276: int MPI_Comm_rank(MPI_Comm comm, int *rank)
277: {
278: if (comm < 1 || comm > MaxComm) return MPI_FAILURE;
279: *rank=0;
280: return MPI_SUCCESS;
281: }
283: int MPIUni_Abort(MPI_Comm comm,int errorcode)
284: {
285: printf("MPI operation not supported by PETSc's sequential MPI wrappers\n");
286: return MPI_FAILURE;
287: }
289: int MPI_Abort(MPI_Comm comm,int errorcode)
290: {
291: abort();
292: return MPI_SUCCESS;
293: }
295: /* --------------------------------------------------------------------------*/
297: static int MPI_was_initialized = 0;
298: static int MPI_was_finalized = 0;
300: int MPI_Init(int *argc, char ***argv)
301: {
302: if (MPI_was_initialized) return MPI_FAILURE;
303: /* MPI standard says "once MPI_Finalize returns, no MPI routine (not even MPI_Init) may be called", so an MPI standard compliant
304: MPIU should have this 'if (MPI_was_finalized) return MPI_FAILURE;' check. We relax it here to make life easier for users
305: of MPIU so that they can do multiple PetscInitialize/Finalize().
306: */
307: /* if (MPI_was_finalized) return MPI_FAILURE; */
308: MPI_was_initialized = 1;
309: MPI_was_finalized = 0;
310: return MPI_SUCCESS;
311: }
313: int MPI_Finalize(void)
314: {
315: MPI_Comm comm;
316: if (MPI_was_finalized) return MPI_FAILURE;
317: if (!MPI_was_initialized) return MPI_FAILURE;
318: comm = MPI_COMM_WORLD;
319: MPI_Comm_free(&comm);
320: comm = MPI_COMM_SELF;
321: MPI_Comm_free(&comm);
322: #if defined(PETSC_USE_DEBUG)
323: {
324: int i;
325: for (i=3; i<=MaxComm; i++) {
326: if (comm_active[CommIdx(i)]) printf("MPIUni warning: MPI communicator %d is not freed before MPI_Finalize()\n", i);
327: }
328: }
329: #endif
330: /* reset counters */
331: MaxComm = 2;
332: num_attr = 1;
333: MPI_was_finalized = 1;
334: MPI_was_initialized = 0;
335: PETSC_COMM_WORLD = MPI_COMM_NULL;
336: return MPI_SUCCESS;
337: }
339: int MPI_Initialized(int *flag)
340: {
341: *flag = MPI_was_initialized;
342: return MPI_SUCCESS;
343: }
345: int MPI_Finalized(int *flag)
346: {
347: *flag = MPI_was_finalized;
348: return MPI_SUCCESS;
349: }
351: /* ------------------- Fortran versions of several routines ------------------ */
353: #if defined(PETSC_HAVE_FORTRAN_CAPS)
354: #define mpiunisetmoduleblock_ MPIUNISETMODULEBLOCK
355: #define mpiunisetfortranbasepointers_ MPIUNISETFORTRANBASEPOINTERS
356: #define petsc_mpi_init_ PETSC_MPI_INIT
357: #define petsc_mpi_finalize_ PETSC_MPI_FINALIZE
358: #define petsc_mpi_comm_size_ PETSC_MPI_COMM_SIZE
359: #define petsc_mpi_comm_rank_ PETSC_MPI_COMM_RANK
360: #define petsc_mpi_abort_ PETSC_MPI_ABORT
361: #define petsc_mpi_reduce_ PETSC_MPI_REDUCE
362: #define petsc_mpi_allreduce_ PETSC_MPI_ALLREDUCE
363: #define petsc_mpi_barrier_ PETSC_MPI_BARRIER
364: #define petsc_mpi_bcast_ PETSC_MPI_BCAST
365: #define petsc_mpi_gather_ PETSC_MPI_GATHER
366: #define petsc_mpi_allgather_ PETSC_MPI_ALLGATHER
367: #define petsc_mpi_comm_split_ PETSC_MPI_COMM_SPLIT
368: #define petsc_mpi_scan_ PETSC_MPI_SCAN
369: #define petsc_mpi_send_ PETSC_MPI_SEND
370: #define petsc_mpi_recv_ PETSC_MPI_RECV
371: #define petsc_mpi_reduce_scatter_ PETSC_MPI_REDUCE_SCATTER
372: #define petsc_mpi_irecv_ PETSC_MPI_IRECV
373: #define petsc_mpi_isend_ PETSC_MPI_ISEND
374: #define petsc_mpi_sendrecv_ PETSC_MPI_SENDRECV
375: #define petsc_mpi_test_ PETSC_MPI_TEST
376: #define petsc_mpi_waitall_ PETSC_MPI_WAITALL
377: #define petsc_mpi_waitany_ PETSC_MPI_WAITANY
378: #define petsc_mpi_allgatherv_ PETSC_MPI_ALLGATHERV
379: #define petsc_mpi_alltoallv_ PETSC_MPI_ALLTOALLV
380: #define petsc_mpi_comm_create_ PETSC_MPI_COMM_CREATE
381: #define petsc_mpi_address_ PETSC_MPI_ADDRESS
382: #define petsc_mpi_pack_ PETSC_MPI_PACK
383: #define petsc_mpi_unpack_ PETSC_MPI_UNPACK
384: #define petsc_mpi_pack_size_ PETSC_MPI_PACK_SIZE
385: #define petsc_mpi_type_struct_ PETSC_MPI_TYPE_STRUCT
386: #define petsc_mpi_type_commit_ PETSC_MPI_TYPE_COMMIT
387: #define petsc_mpi_wtime_ PETSC_MPI_WTIME
388: #define petsc_mpi_cancel_ PETSC_MPI_CANCEL
389: #define petsc_mpi_comm_dup_ PETSC_MPI_COMM_DUP
390: #define petsc_mpi_comm_free_ PETSC_MPI_COMM_FREE
391: #define petsc_mpi_get_count_ PETSC_MPI_GET_COUNT
392: #define petsc_mpi_get_processor_name_ PETSC_MPI_GET_PROCESSOR_NAME
393: #define petsc_mpi_initialized_ PETSC_MPI_INITIALIZED
394: #define petsc_mpi_iprobe_ PETSC_MPI_IPROBE
395: #define petsc_mpi_probe_ PETSC_MPI_PROBE
396: #define petsc_mpi_request_free_ PETSC_MPI_REQUEST_FREE
397: #define petsc_mpi_ssend_ PETSC_MPI_SSEND
398: #define petsc_mpi_wait_ PETSC_MPI_WAIT
399: #define petsc_mpi_comm_group_ PETSC_MPI_COMM_GROUP
400: #define petsc_mpi_exscan_ PETSC_MPI_EXSCAN
401: #elif !defined(PETSC_HAVE_FORTRAN_UNDERSCORE)
402: #define mpiunisetmoduleblock_ mpiunisetmoduleblock
403: #define mpiunisetfortranbasepointers_ mpiunisetfortranbasepointers
404: #define petsc_mpi_init_ petsc_mpi_init
405: #define petsc_mpi_finalize_ petsc_mpi_finalize
406: #define petsc_mpi_comm_size_ petsc_mpi_comm_size
407: #define petsc_mpi_comm_rank_ petsc_mpi_comm_rank
408: #define petsc_mpi_abort_ petsc_mpi_abort
409: #define petsc_mpi_reduce_ petsc_mpi_reduce
410: #define petsc_mpi_allreduce_ petsc_mpi_allreduce
411: #define petsc_mpi_barrier_ petsc_mpi_barrier
412: #define petsc_mpi_bcast_ petsc_mpi_bcast
413: #define petsc_mpi_gather_ petsc_mpi_gather
414: #define petsc_mpi_allgather_ petsc_mpi_allgather
415: #define petsc_mpi_comm_split_ petsc_mpi_comm_split
416: #define petsc_mpi_scan_ petsc_mpi_scan
417: #define petsc_mpi_send_ petsc_mpi_send
418: #define petsc_mpi_recv_ petsc_mpi_recv
419: #define petsc_mpi_reduce_scatter_ petsc_mpi_reduce_scatter
420: #define petsc_mpi_irecv_ petsc_mpi_irecv
421: #define petsc_mpi_isend_ petsc_mpi_isend
422: #define petsc_mpi_sendrecv_ petsc_mpi_sendrecv
423: #define petsc_mpi_test_ petsc_mpi_test
424: #define petsc_mpi_waitall_ petsc_mpi_waitall
425: #define petsc_mpi_waitany_ petsc_mpi_waitany
426: #define petsc_mpi_allgatherv_ petsc_mpi_allgatherv
427: #define petsc_mpi_alltoallv_ petsc_mpi_alltoallv
428: #define petsc_mpi_comm_create_ petsc_mpi_comm_create
429: #define petsc_mpi_address_ petsc_mpi_address
430: #define petsc_mpi_pack_ petsc_mpi_pack
431: #define petsc_mpi_unpack_ petsc_mpi_unpack
432: #define petsc_mpi_pack_size_ petsc_mpi_pack_size
433: #define petsc_mpi_type_struct_ petsc_mpi_type_struct
434: #define petsc_mpi_type_commit_ petsc_mpi_type_commit
435: #define petsc_mpi_wtime_ petsc_mpi_wtime
436: #define petsc_mpi_cancel_ petsc_mpi_cancel
437: #define petsc_mpi_comm_dup_ petsc_mpi_comm_dup
438: #define petsc_mpi_comm_free_ petsc_mpi_comm_free
439: #define petsc_mpi_get_count_ petsc_mpi_get_count
440: #define petsc_mpi_get_processor_name_ petsc_mpi_get_processor_name
441: #define petsc_mpi_initialized_ petsc_mpi_initialized
442: #define petsc_mpi_iprobe_ petsc_mpi_iprobe
443: #define petsc_mpi_probe_ petsc_mpi_probe
444: #define petsc_mpi_request_free_ petsc_mpi_request_free
445: #define petsc_mpi_ssend_ petsc_mpi_ssend
446: #define petsc_mpi_wait_ petsc_mpi_wait
447: #define petsc_mpi_comm_group_ petsc_mpi_comm_group
448: #define petsc_mpi_exscan_ petsc_mpi_exscan
449: #endif
451: #if defined(PETSC_HAVE_FORTRAN_UNDERSCORE_UNDERSCORE)
452: #define petsc_mpi_init_ petsc_mpi_init__
453: #define petsc_mpi_finalize_ petsc_mpi_finalize__
454: #define petsc_mpi_comm_size_ petsc_mpi_comm_size__
455: #define petsc_mpi_comm_rank_ petsc_mpi_comm_rank__
456: #define petsc_mpi_abort_ petsc_mpi_abort__
457: #define petsc_mpi_reduce_ petsc_mpi_reduce__
458: #define petsc_mpi_allreduce_ petsc_mpi_allreduce__
459: #define petsc_mpi_barrier_ petsc_mpi_barrier__
460: #define petsc_mpi_bcast_ petsc_mpi_bcast__
461: #define petsc_mpi_gather_ petsc_mpi_gather__
462: #define petsc_mpi_allgather_ petsc_mpi_allgather__
463: #define petsc_mpi_comm_split_ petsc_mpi_comm_split__
464: #define petsc_mpi_scan_ petsc_mpi_scan__
465: #define petsc_mpi_send_ petsc_mpi_send__
466: #define petsc_mpi_recv_ petsc_mpi_recv__
467: #define petsc_mpi_reduce_scatter_ petsc_mpi_reduce_scatter__
468: #define petsc_mpi_irecv_ petsc_mpi_irecv__
469: #define petsc_mpi_isend_ petsc_mpi_isend__
470: #define petsc_mpi_sendrecv_ petsc_mpi_sendrecv__
471: #define petsc_mpi_test_ petsc_mpi_test__
472: #define petsc_mpi_waitall_ petsc_mpi_waitall__
473: #define petsc_mpi_waitany_ petsc_mpi_waitany__
474: #define petsc_mpi_allgatherv_ petsc_mpi_allgatherv__
475: #define petsc_mpi_alltoallv_ petsc_mpi_alltoallv__
476: #define petsc_mpi_comm_create_ petsc_mpi_comm_create__
477: #define petsc_mpi_address_ petsc_mpi_address__
478: #define petsc_mpi_pack_ petsc_mpi_pack__
479: #define petsc_mpi_unpack_ petsc_mpi_unpack__
480: #define petsc_mpi_pack_size_ petsc_mpi_pack_size__
481: #define petsc_mpi_type_struct_ petsc_mpi_type_struct__
482: #define petsc_mpi_type_commit_ petsc_mpi_type_commit__
483: #define petsc_mpi_wtime_ petsc_mpi_wtime__
484: #define petsc_mpi_cancel_ petsc_mpi_cancel__
485: #define petsc_mpi_comm_dup_ petsc_mpi_comm_dup__
486: #define petsc_mpi_comm_free_ petsc_mpi_comm_free__
487: #define petsc_mpi_get_count_ petsc_mpi_get_count__
488: #define petsc_mpi_get_processor_name_ petsc_mpi_get_processor_name__
489: #define petsc_mpi_initialized_ petsc_mpi_initialized__
490: #define petsc_mpi_iprobe_ petsc_mpi_iprobe__
491: #define petsc_mpi_probe_ petsc_mpi_probe__
492: #define petsc_mpi_request_free_ petsc_mpi_request_free__
493: #define petsc_mpi_ssend_ petsc_mpi_ssend__
494: #define petsc_mpi_wait_ petsc_mpi_wait__
495: #define petsc_mpi_comm_group_ petsc_mpi_comm_group__
496: #define petsc_mpi_exscan_ petsc_mpi_exscan__
497: #endif
499: /* Do not build fortran interface if MPI namespace colision is to be avoided */
500: #if defined(PETSC_HAVE_FORTRAN)
502: PETSC_EXTERN void mpiunisetmoduleblock_(void);
504: PETSC_EXTERN void mpiunisetfortranbasepointers_(void *f_mpi_in_place)
505: {
506: MPIUNIF_mpi_in_place = f_mpi_in_place;
507: }
509: PETSC_EXTERN void petsc_mpi_init_(int *ierr)
510: {
511: mpiunisetmoduleblock_();
512: *MPI_Init((int*)0, (char***)0);
513: }
515: PETSC_EXTERN void petsc_mpi_finalize_(int *ierr)
516: {
517: *MPI_Finalize();
518: }
520: PETSC_EXTERN void petsc_mpi_comm_size_(MPI_Comm *comm,int *size,int *ierr)
521: {
522: *size = 1;
523: *0;
524: }
526: PETSC_EXTERN void petsc_mpi_comm_rank_(MPI_Comm *comm,int *rank,int *ierr)
527: {
528: *rank = 0;
529: *MPI_SUCCESS;
530: }
532: PETSC_EXTERN void petsc_mpi_comm_split_(MPI_Comm *comm,int *color,int *key, MPI_Comm *newcomm, int *ierr)
533: {
534: *newcomm = *comm;
535: *MPI_SUCCESS;
536: }
538: PETSC_EXTERN void petsc_mpi_abort_(MPI_Comm *comm,int *errorcode,int *ierr)
539: {
540: abort();
541: *MPI_SUCCESS;
542: }
544: PETSC_EXTERN void petsc_mpi_reduce_(void *sendbuf,void *recvbuf,int *count,int *datatype,int *op,int *root,int *comm,int *ierr)
545: {
546: *MPI_Reduce(sendbuf,recvbuf,*count,*datatype,*op,*root,*comm);
547: }
549: PETSC_EXTERN void petsc_mpi_allreduce_(void *sendbuf,void *recvbuf,int *count,int *datatype,int *op,int *comm,int *ierr)
550: {
551: *MPI_Allreduce(sendbuf,recvbuf,*count,*datatype,*op,*comm);
552: }
554: PETSC_EXTERN void petsc_mpi_barrier_(MPI_Comm *comm,int *ierr)
555: {
556: *MPI_SUCCESS;
557: }
559: PETSC_EXTERN void petsc_mpi_bcast_(void *buf,int *count,int *datatype,int *root,int *comm,int *ierr)
560: {
561: *MPI_SUCCESS;
562: }
564: PETSC_EXTERN void petsc_mpi_gather_(void *sendbuf,int *scount,int *sdatatype, void *recvbuf, int *rcount, int *rdatatype, int *root,int *comm,int *ierr)
565: {
566: *MPI_Gather(sendbuf,*scount,*sdatatype,recvbuf,rcount,rdatatype,*root,*comm);
567: }
569: PETSC_EXTERN void petsc_mpi_allgather_(void *sendbuf,int *scount,int *sdatatype, void *recvbuf, int *rcount, int *rdatatype,int *comm,int *ierr)
570: {
571: *MPI_Allgather(sendbuf,*scount,*sdatatype,recvbuf,rcount,rdatatype,*comm);
572: }
574: PETSC_EXTERN void petsc_mpi_scan_(void *sendbuf,void *recvbuf,int *count,int *datatype,int *op,int *comm,int *ierr)
575: {
576: *MPIUNI_Memcpy(recvbuf,sendbuf,(*count)*MPI_sizeof(*datatype));
577: }
579: PETSC_EXTERN void petsc_mpi_send_(void *buf,int *count,int *datatype,int *dest,int *tag,int *comm,int *ierr)
580: {
581: *MPIUni_Abort(MPI_COMM_WORLD,0);
582: }
584: PETSC_EXTERN void petsc_mpi_recv_(void *buf,int *count,int *datatype,int *source,int *tag,int *comm,int status,int *ierr)
585: {
586: *MPIUni_Abort(MPI_COMM_WORLD,0);
587: }
589: PETSC_EXTERN void petsc_mpi_reduce_scatter_(void *sendbuf,void *recvbuf,int *recvcounts,int *datatype,int *op,int *comm,int *ierr)
590: {
591: *MPIUni_Abort(MPI_COMM_WORLD,0);
592: }
594: PETSC_EXTERN void petsc_mpi_irecv_(void *buf,int *count, int *datatype, int *source, int *tag, int *comm, int *request, int *ierr)
595: {
596: *MPIUni_Abort(MPI_COMM_WORLD,0);
597: }
599: PETSC_EXTERN void petsc_mpi_isend_(void *buf,int *count,int *datatype,int *dest,int *tag,int *comm,int *request, int *ierr)
600: {
601: *MPIUni_Abort(MPI_COMM_WORLD,0);
602: }
604: 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)
605: {
606: *MPIUNI_Memcpy(recvbuf,sendbuf,(*sendcount)*MPI_sizeof(*sendtype));
607: }
609: PETSC_EXTERN void petsc_mpi_test_(int *request,int *flag,int *status,int *ierr)
610: {
611: *MPIUni_Abort(MPI_COMM_WORLD,0);
612: }
614: PETSC_EXTERN void petsc_mpi_waitall_(int *count,int *array_of_requests,int *array_of_statuses,int *ierr)
615: {
616: *MPI_SUCCESS;
617: }
619: PETSC_EXTERN void petsc_mpi_waitany_(int *count,int *array_of_requests,int * index, int *status,int *ierr)
620: {
621: *MPI_SUCCESS;
622: }
624: PETSC_EXTERN void petsc_mpi_allgatherv_(void *sendbuf,int *sendcount,int *sendtype,void *recvbuf,int *recvcounts,int *displs,int *recvtype,int *comm,int *ierr)
625: {
626: *MPI_Allgatherv(sendbuf,*sendcount,*sendtype,recvbuf,recvcounts,displs,*recvtype,*comm);
627: }
629: 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)
630: {
631: *MPI_Alltoallv(sendbuf,sendcounts,sdispls,*sendtype,recvbuf,recvcounts,rdispls,*recvtype,*comm);
632: }
634: PETSC_EXTERN void petsc_mpi_comm_create_(int *comm,int *group,int *newcomm,int *ierr)
635: {
636: *newcomm = *comm;
637: *MPI_SUCCESS;
638: }
640: PETSC_EXTERN void petsc_mpi_address_(void *location,MPI_Aint *address,int *ierr)
641: {
642: *address = (MPI_Aint) ((char *)location);
643: *MPI_SUCCESS;
644: }
646: PETSC_EXTERN void petsc_mpi_pack_(void *inbuf,int *incount,int *datatype,void *outbuf,int *outsize,int *position,int *comm,int *ierr)
647: {
648: *MPIUni_Abort(MPI_COMM_WORLD,0);
649: }
651: PETSC_EXTERN void petsc_mpi_unpack_(void *inbuf,int *insize,int *position,void *outbuf,int *outcount,int *datatype,int *comm,int *ierr)
652: {
653: *MPIUni_Abort(MPI_COMM_WORLD,0);
654: }
656: PETSC_EXTERN void petsc_mpi_pack_size_(int *incount,int *datatype,int *comm,int *size,int *ierr)
657: {
658: *MPIUni_Abort(MPI_COMM_WORLD,0);
659: }
661: 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)
662: {
663: *MPIUni_Abort(MPI_COMM_WORLD,0);
664: }
666: PETSC_EXTERN void petsc_mpi_type_commit_(int *datatype,int *ierr)
667: {
668: *MPI_SUCCESS;
669: }
671: double petsc_mpi_wtime_(void)
672: {
673: return 0.0;
674: }
676: PETSC_EXTERN void petsc_mpi_cancel_(int *request,int *ierr)
677: {
678: *MPI_SUCCESS;
679: }
681: PETSC_EXTERN void petsc_mpi_comm_dup_(int *comm,int *out,int *ierr)
682: {
683: *out = *comm;
684: *MPI_SUCCESS;
685: }
687: PETSC_EXTERN void petsc_mpi_comm_free_(int *comm,int *ierr)
688: {
689: *MPI_SUCCESS;
690: }
692: PETSC_EXTERN void petsc_mpi_get_count_(int *status,int *datatype,int *count,int *ierr)
693: {
694: *MPIUni_Abort(MPI_COMM_WORLD,0);
695: }
697: PETSC_EXTERN void petsc_mpi_get_processor_name_(char *name,int *result_len,int *ierr,PETSC_FORTRAN_CHARLEN_T len)
698: {
699: MPIUNI_Memcpy(name,"localhost",9*sizeof(char));
700: *result_len = 9;
701: *MPI_SUCCESS;
702: }
704: PETSC_EXTERN void petsc_mpi_initialized_(int *flag,int *ierr)
705: {
706: *flag = MPI_was_initialized;
707: *MPI_SUCCESS;
708: }
710: PETSC_EXTERN void petsc_mpi_iprobe_(int *source,int *tag,int *comm,int *glag,int *status,int *ierr)
711: {
712: *MPI_SUCCESS;
713: }
715: PETSC_EXTERN void petsc_mpi_probe_(int *source,int *tag,int *comm,int *flag,int *status,int *ierr)
716: {
717: *MPI_SUCCESS;
718: }
720: PETSC_EXTERN void petsc_mpi_request_free_(int *request,int *ierr)
721: {
722: *MPI_SUCCESS;
723: }
725: PETSC_EXTERN void petsc_mpi_ssend_(void *buf,int *count,int *datatype,int *dest,int *tag,int *comm,int *ierr)
726: {
727: *MPIUni_Abort(MPI_COMM_WORLD,0);
728: }
730: PETSC_EXTERN void petsc_mpi_wait_(int *request,int *status,int *ierr)
731: {
732: *MPI_SUCCESS;
733: }
735: PETSC_EXTERN void petsc_mpi_comm_group_(int *comm,int *group,int *ierr)
736: {
737: *MPI_SUCCESS;
738: }
740: PETSC_EXTERN void petsc_mpi_exscan_(void *sendbuf,void *recvbuf,int *count,int *datatype,int *op,int *comm,int *ierr)
741: {
742: *MPI_SUCCESS;
743: }
745: #endif /* PETSC_HAVE_FORTRAN */
747: #if defined(__cplusplus)
748: }
749: #endif