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