Actual source code: mpi.c
petsc-3.14.1 2020-11-03
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: break;
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: }
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: }
159: int MPI_Comm_create_keyval(MPI_Copy_function *copy_fn,MPI_Delete_function *delete_fn,int *keyval,void *extra_state)
160: {
161: int i,keyid;
162: for (i=1; i<num_attr; i++) { /* the first attribute is always in use */
163: if (!attr_keyval[i].active) {
164: keyid = i;
165: goto found;
166: }
167: }
168: if (num_attr >= MAX_ATTR) return MPIUni_Abort(MPI_COMM_WORLD,1);
169: keyid = num_attr++;
171: found:
172: attr_keyval[keyid].extra_state = extra_state;
173: attr_keyval[keyid].del = delete_fn;
174: attr_keyval[keyid].active = 1;
175: *keyval = keyid;
176: return MPI_SUCCESS;
177: }
179: int MPI_Comm_free_keyval(int *keyval)
180: {
181: attr_keyval[*keyval].extra_state = 0;
182: attr_keyval[*keyval].del = 0;
183: attr_keyval[*keyval].active = 0;
184: *keyval = 0;
185: return MPI_SUCCESS;
186: }
188: int MPI_Comm_set_attr(MPI_Comm comm,int keyval,void *attribute_val)
189: {
190: int idx = CommIdx(comm);
191: if (comm < 1 || comm > MaxComm) return MPI_FAILURE;
192: attr[idx][keyval].active = 1;
193: attr[idx][keyval].attribute_val = attribute_val;
194: return MPI_SUCCESS;
195: }
197: int MPI_Comm_delete_attr(MPI_Comm comm,int keyval)
198: {
199: int idx = CommIdx(comm);
200: if (comm < 1 || comm > MaxComm) return MPI_FAILURE;
201: if (attr[idx][keyval].active && attr_keyval[keyval].del) {
202: void *save_attribute_val = attr[idx][keyval].attribute_val;
203: attr[idx][keyval].active = 0;
204: attr[idx][keyval].attribute_val = 0;
205: (*(attr_keyval[keyval].del))(comm,keyval,save_attribute_val,attr_keyval[keyval].extra_state);
206: }
207: return MPI_SUCCESS;
208: }
210: int MPI_Comm_get_attr(MPI_Comm comm,int keyval,void *attribute_val,int *flag)
211: {
212: int idx = CommIdx(comm);
213: if (comm < 1 || comm > MaxComm) return MPI_FAILURE;
214: if (!keyval) Keyval_setup();
215: *flag = attr[idx][keyval].active;
216: *(void**)attribute_val = attr[idx][keyval].attribute_val;
217: return MPI_SUCCESS;
218: }
220: int MPI_Comm_create(MPI_Comm comm,MPI_Group group,MPI_Comm *newcomm)
221: {
222: int j;
223: if (comm < 1 || comm > MaxComm) return MPI_FAILURE;
224: for (j=3; j<=MaxComm; j++) {
225: if (!comm_active[CommIdx(j)]) {
226: comm_active[CommIdx(j)] = 1;
227: *newcomm = j;
228: return MPI_SUCCESS;
229: }
230: }
231: if (MaxComm >= MAX_COMM) return MPI_FAILURE;
232: *newcomm = ++MaxComm;
233: comm_active[CommIdx(*newcomm)] = 1;
234: return MPI_SUCCESS;
235: }
237: int MPI_Comm_dup(MPI_Comm comm,MPI_Comm *out)
238: {
239: int j;
240: if (comm < 1 || comm > MaxComm) return MPI_FAILURE;
241: for (j=3; j<=MaxComm; j++) {
242: if (!comm_active[CommIdx(j)]) {
243: comm_active[CommIdx(j)] = 1;
244: *out = j;
245: return MPI_SUCCESS;
246: }
247: }
248: if (MaxComm >= MAX_COMM) return MPI_FAILURE;
249: *out = ++MaxComm;
250: comm_active[CommIdx(*out)] = 1;
251: return MPI_SUCCESS;
252: }
254: int MPI_Comm_free(MPI_Comm *comm)
255: {
256: int i;
257: int idx = CommIdx(*comm);
259: if (*comm < 1 || *comm > MaxComm) return MPI_FAILURE;
260: for (i=0; i<num_attr; i++) {
261: 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);
262: attr[idx][i].active = 0;
263: attr[idx][i].attribute_val = 0;
264: }
265: if (*comm >= 3) comm_active[idx] = 0;
266: *comm = 0;
267: return MPI_SUCCESS;
268: }
270: int MPI_Comm_size(MPI_Comm comm, int *size)
271: {
272: if (comm < 1 || comm > MaxComm) return MPI_FAILURE;
273: *size=1;
274: return MPI_SUCCESS;
275: }
277: int MPI_Comm_rank(MPI_Comm comm, int *rank)
278: {
279: if (comm < 1 || comm > MaxComm) return MPI_FAILURE;
280: *rank=0;
281: return MPI_SUCCESS;
282: }
284: int MPIUni_Abort(MPI_Comm comm,int errorcode)
285: {
286: printf("MPI operation not supported by PETSc's sequential MPI wrappers\n");
287: return MPI_FAILURE;
288: }
290: int MPI_Abort(MPI_Comm comm,int errorcode)
291: {
292: abort();
293: return MPI_SUCCESS;
294: }
296: /* --------------------------------------------------------------------------*/
298: static int MPI_was_initialized = 0;
299: static int MPI_was_finalized = 0;
301: int MPI_Init(int *argc, char ***argv)
302: {
303: if (MPI_was_initialized) return MPI_FAILURE;
304: if (MPI_was_finalized) return MPI_FAILURE; /* MPI standard: once MPI_FINALIZE returns, no MPI routine (not even MPI_INIT) may be called, except ... */
305: MPI_was_initialized = 1;
306: return MPI_SUCCESS;
307: }
309: int MPI_Finalize(void)
310: {
311: MPI_Comm comm;
312: if (MPI_was_finalized) return MPI_FAILURE;
313: if (!MPI_was_initialized) return MPI_FAILURE;
314: comm = MPI_COMM_WORLD;
315: MPI_Comm_free(&comm);
316: comm = MPI_COMM_SELF;
317: MPI_Comm_free(&comm);
318: #if defined(PETSC_USE_DEBUG)
319: {
320: int i;
321: for (i=3; i<=MaxComm; i++) {
322: if (comm_active[CommIdx(i)]) printf("MPIUni warning: MPI communicator %d is not freed before MPI_Finalize()\n", i);
323: }
324: }
325: #endif
326: /* reset counters */
327: MaxComm = 2;
328: num_attr = 1;
329: MPI_was_finalized = 1;
330: return MPI_SUCCESS;
331: }
333: int MPI_Initialized(int *flag)
334: {
335: *flag = MPI_was_initialized;
336: return MPI_SUCCESS;
337: }
339: int MPI_Finalized(int *flag)
340: {
341: *flag = MPI_was_finalized;
342: return MPI_SUCCESS;
343: }
345: /* ------------------- Fortran versions of several routines ------------------ */
347: #if defined(PETSC_HAVE_FORTRAN_CAPS)
348: #define mpiunisetmoduleblock_ MPIUNISETMODULEBLOCK
349: #define mpiunisetfortranbasepointers_ MPIUNISETFORTRANBASEPOINTERS
350: #define petsc_mpi_init_ PETSC_MPI_INIT
351: #define petsc_mpi_finalize_ PETSC_MPI_FINALIZE
352: #define petsc_mpi_comm_size_ PETSC_MPI_COMM_SIZE
353: #define petsc_mpi_comm_rank_ PETSC_MPI_COMM_RANK
354: #define petsc_mpi_abort_ PETSC_MPI_ABORT
355: #define petsc_mpi_reduce_ PETSC_MPI_REDUCE
356: #define petsc_mpi_allreduce_ PETSC_MPI_ALLREDUCE
357: #define petsc_mpi_barrier_ PETSC_MPI_BARRIER
358: #define petsc_mpi_bcast_ PETSC_MPI_BCAST
359: #define petsc_mpi_gather_ PETSC_MPI_GATHER
360: #define petsc_mpi_allgather_ PETSC_MPI_ALLGATHER
361: #define petsc_mpi_comm_split_ PETSC_MPI_COMM_SPLIT
362: #define petsc_mpi_scan_ PETSC_MPI_SCAN
363: #define petsc_mpi_send_ PETSC_MPI_SEND
364: #define petsc_mpi_recv_ PETSC_MPI_RECV
365: #define petsc_mpi_reduce_scatter_ PETSC_MPI_REDUCE_SCATTER
366: #define petsc_mpi_irecv_ PETSC_MPI_IRECV
367: #define petsc_mpi_isend_ PETSC_MPI_ISEND
368: #define petsc_mpi_sendrecv_ PETSC_MPI_SENDRECV
369: #define petsc_mpi_test_ PETSC_MPI_TEST
370: #define petsc_mpi_waitall_ PETSC_MPI_WAITALL
371: #define petsc_mpi_waitany_ PETSC_MPI_WAITANY
372: #define petsc_mpi_allgatherv_ PETSC_MPI_ALLGATHERV
373: #define petsc_mpi_alltoallv_ PETSC_MPI_ALLTOALLV
374: #define petsc_mpi_comm_create_ PETSC_MPI_COMM_CREATE
375: #define petsc_mpi_address_ PETSC_MPI_ADDRESS
376: #define petsc_mpi_pack_ PETSC_MPI_PACK
377: #define petsc_mpi_unpack_ PETSC_MPI_UNPACK
378: #define petsc_mpi_pack_size_ PETSC_MPI_PACK_SIZE
379: #define petsc_mpi_type_struct_ PETSC_MPI_TYPE_STRUCT
380: #define petsc_mpi_type_commit_ PETSC_MPI_TYPE_COMMIT
381: #define petsc_mpi_wtime_ PETSC_MPI_WTIME
382: #define petsc_mpi_cancel_ PETSC_MPI_CANCEL
383: #define petsc_mpi_comm_dup_ PETSC_MPI_COMM_DUP
384: #define petsc_mpi_comm_free_ PETSC_MPI_COMM_FREE
385: #define petsc_mpi_get_count_ PETSC_MPI_GET_COUNT
386: #define petsc_mpi_get_processor_name_ PETSC_MPI_GET_PROCESSOR_NAME
387: #define petsc_mpi_initialized_ PETSC_MPI_INITIALIZED
388: #define petsc_mpi_iprobe_ PETSC_MPI_IPROBE
389: #define petsc_mpi_probe_ PETSC_MPI_PROBE
390: #define petsc_mpi_request_free_ PETSC_MPI_REQUEST_FREE
391: #define petsc_mpi_ssend_ PETSC_MPI_SSEND
392: #define petsc_mpi_wait_ PETSC_MPI_WAIT
393: #define petsc_mpi_comm_group_ PETSC_MPI_COMM_GROUP
394: #define petsc_mpi_exscan_ PETSC_MPI_EXSCAN
395: #elif !defined(PETSC_HAVE_FORTRAN_UNDERSCORE)
396: #define mpiunisetmoduleblock_ mpiunisetmoduleblock
397: #define mpiunisetfortranbasepointers_ mpiunisetfortranbasepointers
398: #define petsc_mpi_init_ petsc_mpi_init
399: #define petsc_mpi_finalize_ petsc_mpi_finalize
400: #define petsc_mpi_comm_size_ petsc_mpi_comm_size
401: #define petsc_mpi_comm_rank_ petsc_mpi_comm_rank
402: #define petsc_mpi_abort_ petsc_mpi_abort
403: #define petsc_mpi_reduce_ petsc_mpi_reduce
404: #define petsc_mpi_allreduce_ petsc_mpi_allreduce
405: #define petsc_mpi_barrier_ petsc_mpi_barrier
406: #define petsc_mpi_bcast_ petsc_mpi_bcast
407: #define petsc_mpi_gather_ petsc_mpi_gather
408: #define petsc_mpi_allgather_ petsc_mpi_allgather
409: #define petsc_mpi_comm_split_ petsc_mpi_comm_split
410: #define petsc_mpi_scan_ petsc_mpi_scan
411: #define petsc_mpi_send_ petsc_mpi_send
412: #define petsc_mpi_recv_ petsc_mpi_recv
413: #define petsc_mpi_reduce_scatter_ petsc_mpi_reduce_scatter
414: #define petsc_mpi_irecv_ petsc_mpi_irecv
415: #define petsc_mpi_isend_ petsc_mpi_isend
416: #define petsc_mpi_sendrecv_ petsc_mpi_sendrecv
417: #define petsc_mpi_test_ petsc_mpi_test
418: #define petsc_mpi_waitall_ petsc_mpi_waitall
419: #define petsc_mpi_waitany_ petsc_mpi_waitany
420: #define petsc_mpi_allgatherv_ petsc_mpi_allgatherv
421: #define petsc_mpi_alltoallv_ petsc_mpi_alltoallv
422: #define petsc_mpi_comm_create_ petsc_mpi_comm_create
423: #define petsc_mpi_address_ petsc_mpi_address
424: #define petsc_mpi_pack_ petsc_mpi_pack
425: #define petsc_mpi_unpack_ petsc_mpi_unpack
426: #define petsc_mpi_pack_size_ petsc_mpi_pack_size
427: #define petsc_mpi_type_struct_ petsc_mpi_type_struct
428: #define petsc_mpi_type_commit_ petsc_mpi_type_commit
429: #define petsc_mpi_wtime_ petsc_mpi_wtime
430: #define petsc_mpi_cancel_ petsc_mpi_cancel
431: #define petsc_mpi_comm_dup_ petsc_mpi_comm_dup
432: #define petsc_mpi_comm_free_ petsc_mpi_comm_free
433: #define petsc_mpi_get_count_ petsc_mpi_get_count
434: #define petsc_mpi_get_processor_name_ petsc_mpi_get_processor_name
435: #define petsc_mpi_initialized_ petsc_mpi_initialized
436: #define petsc_mpi_iprobe_ petsc_mpi_iprobe
437: #define petsc_mpi_probe_ petsc_mpi_probe
438: #define petsc_mpi_request_free_ petsc_mpi_request_free
439: #define petsc_mpi_ssend_ petsc_mpi_ssend
440: #define petsc_mpi_wait_ petsc_mpi_wait
441: #define petsc_mpi_comm_group_ petsc_mpi_comm_group
442: #define petsc_mpi_exscan_ petsc_mpi_exscan
443: #endif
445: #if defined(PETSC_HAVE_FORTRAN_UNDERSCORE_UNDERSCORE)
446: #define petsc_mpi_init_ petsc_mpi_init__
447: #define petsc_mpi_finalize_ petsc_mpi_finalize__
448: #define petsc_mpi_comm_size_ petsc_mpi_comm_size__
449: #define petsc_mpi_comm_rank_ petsc_mpi_comm_rank__
450: #define petsc_mpi_abort_ petsc_mpi_abort__
451: #define petsc_mpi_reduce_ petsc_mpi_reduce__
452: #define petsc_mpi_allreduce_ petsc_mpi_allreduce__
453: #define petsc_mpi_barrier_ petsc_mpi_barrier__
454: #define petsc_mpi_bcast_ petsc_mpi_bcast__
455: #define petsc_mpi_gather_ petsc_mpi_gather__
456: #define petsc_mpi_allgather_ petsc_mpi_allgather__
457: #define petsc_mpi_comm_split_ petsc_mpi_comm_split__
458: #define petsc_mpi_scan_ petsc_mpi_scan__
459: #define petsc_mpi_send_ petsc_mpi_send__
460: #define petsc_mpi_recv_ petsc_mpi_recv__
461: #define petsc_mpi_reduce_scatter_ petsc_mpi_reduce_scatter__
462: #define petsc_mpi_irecv_ petsc_mpi_irecv__
463: #define petsc_mpi_isend_ petsc_mpi_isend__
464: #define petsc_mpi_sendrecv_ petsc_mpi_sendrecv__
465: #define petsc_mpi_test_ petsc_mpi_test__
466: #define petsc_mpi_waitall_ petsc_mpi_waitall__
467: #define petsc_mpi_waitany_ petsc_mpi_waitany__
468: #define petsc_mpi_allgatherv_ petsc_mpi_allgatherv__
469: #define petsc_mpi_alltoallv_ petsc_mpi_alltoallv__
470: #define petsc_mpi_comm_create_ petsc_mpi_comm_create__
471: #define petsc_mpi_address_ petsc_mpi_address__
472: #define petsc_mpi_pack_ petsc_mpi_pack__
473: #define petsc_mpi_unpack_ petsc_mpi_unpack__
474: #define petsc_mpi_pack_size_ petsc_mpi_pack_size__
475: #define petsc_mpi_type_struct_ petsc_mpi_type_struct__
476: #define petsc_mpi_type_commit_ petsc_mpi_type_commit__
477: #define petsc_mpi_wtime_ petsc_mpi_wtime__
478: #define petsc_mpi_cancel_ petsc_mpi_cancel__
479: #define petsc_mpi_comm_dup_ petsc_mpi_comm_dup__
480: #define petsc_mpi_comm_free_ petsc_mpi_comm_free__
481: #define petsc_mpi_get_count_ petsc_mpi_get_count__
482: #define petsc_mpi_get_processor_name_ petsc_mpi_get_processor_name__
483: #define petsc_mpi_initialized_ petsc_mpi_initialized__
484: #define petsc_mpi_iprobe_ petsc_mpi_iprobe__
485: #define petsc_mpi_probe_ petsc_mpi_probe__
486: #define petsc_mpi_request_free_ petsc_mpi_request_free__
487: #define petsc_mpi_ssend_ petsc_mpi_ssend__
488: #define petsc_mpi_wait_ petsc_mpi_wait__
489: #define petsc_mpi_comm_group_ petsc_mpi_comm_group__
490: #define petsc_mpi_exscan_ petsc_mpi_exscan__
491: #endif
493: /* Do not build fortran interface if MPI namespace colision is to be avoided */
494: #if defined(PETSC_HAVE_FORTRAN)
496: PETSC_EXTERN void mpiunisetmoduleblock_(void);
498: PETSC_EXTERN void mpiunisetfortranbasepointers_(void *f_mpi_in_place)
499: {
500: MPIUNIF_mpi_in_place = f_mpi_in_place;
501: }
503: PETSC_EXTERN void petsc_mpi_init_(int *ierr)
504: {
505: mpiunisetmoduleblock_();
506: *MPI_Init((int*)0, (char***)0);
507: }
509: PETSC_EXTERN void petsc_mpi_finalize_(int *ierr)
510: {
511: *MPI_Finalize();
512: }
514: PETSC_EXTERN void petsc_mpi_comm_size_(MPI_Comm *comm,int *size,int *ierr)
515: {
516: *size = 1;
517: *0;
518: }
520: PETSC_EXTERN void petsc_mpi_comm_rank_(MPI_Comm *comm,int *rank,int *ierr)
521: {
522: *rank = 0;
523: *MPI_SUCCESS;
524: }
526: PETSC_EXTERN void petsc_mpi_comm_split_(MPI_Comm *comm,int *color,int *key, MPI_Comm *newcomm, int *ierr)
527: {
528: *newcomm = *comm;
529: *MPI_SUCCESS;
530: }
532: PETSC_EXTERN void petsc_mpi_abort_(MPI_Comm *comm,int *errorcode,int *ierr)
533: {
534: abort();
535: *MPI_SUCCESS;
536: }
538: PETSC_EXTERN void petsc_mpi_reduce_(void *sendbuf,void *recvbuf,int *count,int *datatype,int *op,int *root,int *comm,int *ierr)
539: {
540: *MPI_Reduce(sendbuf,recvbuf,*count,*datatype,*op,*root,*comm);
541: }
543: PETSC_EXTERN void petsc_mpi_allreduce_(void *sendbuf,void *recvbuf,int *count,int *datatype,int *op,int *comm,int *ierr)
544: {
545: *MPI_Allreduce(sendbuf,recvbuf,*count,*datatype,*op,*comm);
546: }
548: PETSC_EXTERN void petsc_mpi_barrier_(MPI_Comm *comm,int *ierr)
549: {
550: *MPI_SUCCESS;
551: }
553: PETSC_EXTERN void petsc_mpi_bcast_(void *buf,int *count,int *datatype,int *root,int *comm,int *ierr)
554: {
555: *MPI_SUCCESS;
556: }
558: PETSC_EXTERN void petsc_mpi_gather_(void *sendbuf,int *scount,int *sdatatype, void *recvbuf, int *rcount, int *rdatatype, int *root,int *comm,int *ierr)
559: {
560: *MPI_Gather(sendbuf,*scount,*sdatatype,recvbuf,rcount,rdatatype,*root,*comm);
561: }
563: PETSC_EXTERN void petsc_mpi_allgather_(void *sendbuf,int *scount,int *sdatatype, void *recvbuf, int *rcount, int *rdatatype,int *comm,int *ierr)
564: {
565: *MPI_Allgather(sendbuf,*scount,*sdatatype,recvbuf,rcount,rdatatype,*comm);
566: }
568: PETSC_EXTERN void petsc_mpi_scan_(void *sendbuf,void *recvbuf,int *count,int *datatype,int *op,int *comm,int *ierr)
569: {
570: *MPIUNI_Memcpy(recvbuf,sendbuf,(*count)*MPI_sizeof(*datatype));
571: }
573: PETSC_EXTERN void petsc_mpi_send_(void *buf,int *count,int *datatype,int *dest,int *tag,int *comm,int *ierr)
574: {
575: *MPIUni_Abort(MPI_COMM_WORLD,0);
576: }
578: PETSC_EXTERN void petsc_mpi_recv_(void *buf,int *count,int *datatype,int *source,int *tag,int *comm,int status,int *ierr)
579: {
580: *MPIUni_Abort(MPI_COMM_WORLD,0);
581: }
583: PETSC_EXTERN void petsc_mpi_reduce_scatter_(void *sendbuf,void *recvbuf,int *recvcounts,int *datatype,int *op,int *comm,int *ierr)
584: {
585: *MPIUni_Abort(MPI_COMM_WORLD,0);
586: }
588: PETSC_EXTERN void petsc_mpi_irecv_(void *buf,int *count, int *datatype, int *source, int *tag, int *comm, int *request, int *ierr)
589: {
590: *MPIUni_Abort(MPI_COMM_WORLD,0);
591: }
593: PETSC_EXTERN void petsc_mpi_isend_(void *buf,int *count,int *datatype,int *dest,int *tag,int *comm,int *request, int *ierr)
594: {
595: *MPIUni_Abort(MPI_COMM_WORLD,0);
596: }
598: 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)
599: {
600: *MPIUNI_Memcpy(recvbuf,sendbuf,(*sendcount)*MPI_sizeof(*sendtype));
601: }
603: PETSC_EXTERN void petsc_mpi_test_(int *request,int *flag,int *status,int *ierr)
604: {
605: *MPIUni_Abort(MPI_COMM_WORLD,0);
606: }
608: PETSC_EXTERN void petsc_mpi_waitall_(int *count,int *array_of_requests,int *array_of_statuses,int *ierr)
609: {
610: *MPI_SUCCESS;
611: }
613: PETSC_EXTERN void petsc_mpi_waitany_(int *count,int *array_of_requests,int * index, int *status,int *ierr)
614: {
615: *MPI_SUCCESS;
616: }
618: PETSC_EXTERN void petsc_mpi_allgatherv_(void *sendbuf,int *sendcount,int *sendtype,void *recvbuf,int *recvcounts,int *displs,int *recvtype,int *comm,int *ierr)
619: {
620: *MPI_Allgatherv(sendbuf,*sendcount,*sendtype,recvbuf,recvcounts,displs,*recvtype,*comm);
621: }
623: 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)
624: {
625: *MPI_Alltoallv(sendbuf,sendcounts,sdispls,*sendtype,recvbuf,recvcounts,rdispls,*recvtype,*comm);
626: }
628: PETSC_EXTERN void petsc_mpi_comm_create_(int *comm,int *group,int *newcomm,int *ierr)
629: {
630: *newcomm = *comm;
631: *MPI_SUCCESS;
632: }
634: PETSC_EXTERN void petsc_mpi_address_(void *location,MPI_Aint *address,int *ierr)
635: {
636: *address = (MPI_Aint) ((char *)location);
637: *MPI_SUCCESS;
638: }
640: PETSC_EXTERN void petsc_mpi_pack_(void *inbuf,int *incount,int *datatype,void *outbuf,int *outsize,int *position,int *comm,int *ierr)
641: {
642: *MPIUni_Abort(MPI_COMM_WORLD,0);
643: }
645: PETSC_EXTERN void petsc_mpi_unpack_(void *inbuf,int *insize,int *position,void *outbuf,int *outcount,int *datatype,int *comm,int *ierr)
646: {
647: *MPIUni_Abort(MPI_COMM_WORLD,0);
648: }
650: PETSC_EXTERN void petsc_mpi_pack_size_(int *incount,int *datatype,int *comm,int *size,int *ierr)
651: {
652: *MPIUni_Abort(MPI_COMM_WORLD,0);
653: }
655: 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)
656: {
657: *MPIUni_Abort(MPI_COMM_WORLD,0);
658: }
660: PETSC_EXTERN void petsc_mpi_type_commit_(int *datatype,int *ierr)
661: {
662: *MPI_SUCCESS;
663: }
665: double petsc_mpi_wtime_(void)
666: {
667: return 0.0;
668: }
670: PETSC_EXTERN void petsc_mpi_cancel_(int *request,int *ierr)
671: {
672: *MPI_SUCCESS;
673: }
675: PETSC_EXTERN void petsc_mpi_comm_dup_(int *comm,int *out,int *ierr)
676: {
677: *out = *comm;
678: *MPI_SUCCESS;
679: }
681: PETSC_EXTERN void petsc_mpi_comm_free_(int *comm,int *ierr)
682: {
683: *MPI_SUCCESS;
684: }
686: PETSC_EXTERN void petsc_mpi_get_count_(int *status,int *datatype,int *count,int *ierr)
687: {
688: *MPIUni_Abort(MPI_COMM_WORLD,0);
689: }
691: PETSC_EXTERN void petsc_mpi_get_processor_name_(char *name,int *result_len,int *ierr,PETSC_FORTRAN_CHARLEN_T len)
692: {
693: MPIUNI_Memcpy(name,"localhost",9*sizeof(char));
694: *result_len = 9;
695: *MPI_SUCCESS;
696: }
698: PETSC_EXTERN void petsc_mpi_initialized_(int *flag,int *ierr)
699: {
700: *flag = MPI_was_initialized;
701: *MPI_SUCCESS;
702: }
704: PETSC_EXTERN void petsc_mpi_iprobe_(int *source,int *tag,int *comm,int *glag,int *status,int *ierr)
705: {
706: *MPI_SUCCESS;
707: }
709: PETSC_EXTERN void petsc_mpi_probe_(int *source,int *tag,int *comm,int *flag,int *status,int *ierr)
710: {
711: *MPI_SUCCESS;
712: }
714: PETSC_EXTERN void petsc_mpi_request_free_(int *request,int *ierr)
715: {
716: *MPI_SUCCESS;
717: }
719: PETSC_EXTERN void petsc_mpi_ssend_(void *buf,int *count,int *datatype,int *dest,int *tag,int *comm,int *ierr)
720: {
721: *MPIUni_Abort(MPI_COMM_WORLD,0);
722: }
724: PETSC_EXTERN void petsc_mpi_wait_(int *request,int *status,int *ierr)
725: {
726: *MPI_SUCCESS;
727: }
729: PETSC_EXTERN void petsc_mpi_comm_group_(int *comm,int *group,int *ierr)
730: {
731: *MPI_SUCCESS;
732: }
734: PETSC_EXTERN void petsc_mpi_exscan_(void *sendbuf,void *recvbuf,int *count,int *datatype,int *op,int *comm,int *ierr)
735: {
736: *MPI_SUCCESS;
737: }
739: #endif /* PETSC_HAVE_FORTRAN */
741: #if defined(__cplusplus)
742: }
743: #endif