Actual source code: mpi.h

  1: /*
  2:    This is a special set of bindings for uni-processor use of MPI by the PETSc library.
  3:  
  4:    NOT ALL THE MPI CALLS ARE IMPLEMENTED CORRECTLY! Only those needed in PETSc.

  6:    For example,
  7:    * Does not implement send to self.
  8:    * Does not implement attributes correctly.
  9: */

 11: /*
 12:   The following info is a response to one of the petsc-maint questions 
 13:   regarding MPIUNI.

 15:   MPIUNI was developed with the aim of getting PETSc compiled, and
 16:   usable in the absence of MPI. This is the reason each function is
 17:   not documented.  The development strategy was - to make enough
 18:   changes to it so that PETSc source compiles without errors, and runs
 19:   in the uni-processor mode.

 21:   Most PETSc objects have both sequential and parallel
 22:   implementations, which are separate. For eg: We have two types of
 23:   sparse matrix storage formats - SeqAIJ, and MPIAIJ. Some MPI
 24:   routines are used in the Seq part, but most of them are used in the
 25:   MPI part. The send/receive calls can be found mostly in the MPI
 26:   part.

 28:   When MPIUNI is used, only the Seq version of the PETSc objects are
 29:   used, even though the MPI variant of the objects are compiled. Since
 30:   there are no send/receive calls in the Seq variant, PETSc works fine
 31:   with MPIUNI in seq mode.

 33:   The reason some send/receive functions are defined to abort(), is to
 34:   detect sections of code that use send/receive functions, and gets
 35:   executed in the sequential mode. (which shouldn't happen in case of
 36:   PETSc).

 38:   One of the goals with MPIUNI, is to avoid the function call overhead
 39:   of a regular MPI implementation. If this was not the case, we could
 40:   as well have used a regular implementation of MPI as they are
 41:   available on almost all machines. Hence most of the functions are
 42:   implemented as macros. One of the additional benefits we got from
 43:   MPIUNI is, we were able to use PETSc on machines where using a
 44:   proper implementation of MPI was painful (for eg NT).

 46:   Proper implementation of send/receive would involve writing a
 47:   function for each of them. Inside each of these functions, we have
 48:   to check if the send is to self or receive is from self, and then
 49:   doing the buffering accordingly (until the receive is called) - or
 50:   what if a nonblocking receive is called, do a copy etc.. Handling
 51:   the buffering aspects might be complicated enough, that in this
 52:   case, a proper implementation of MPI might as well be used. This is
 53:   the reason the send to self is not implemented in MPIUNI, and never
 54:   will be.
 55: */


 60: /* Requred by abort() in mpi.c & for win64 */
 61: #include "petscconf.h"

 63: #if defined(__cplusplus)
 65: #endif

 67: /* require an int variable large enough to hold a pointer */
 68: #if !defined(MPIUNI_INTPTR)
 69: #define MPIUNI_INTPTR long
 70: #endif

 72: #define _petsc_mpi_uni

 74: /*

 76:     MPIUNI_TMP is used in the macros below only to stop various C/C++ compilers
 77: from generating warning messages about unused variables while compiling PETSc.
 78: */

 81: #define MPI_COMM_WORLD       1
 82: #define MPI_COMM_SELF        MPI_COMM_WORLD
 83: #define MPI_COMM_NULL        0
 84: #define MPI_SUCCESS          0
 85: #define MPI_IDENT            0
 86: #define MPI_CONGRUENT        0
 87: #define MPI_SIMILAR          0
 88: #define MPI_UNEQUAL          3
 89: #define MPI_ANY_SOURCE     (-2)
 90: #define MPI_KEYVAL_INVALID   0
 91: #define MPI_ERR_UNKNOWN     18
 92: #define MPI_ERR_INTERN      21
 93: #define MPI_ERR_OTHER        1
 94: #define MPI_TAG_UB           0
 95: #define MPI_ERRORS_RETURN    0

 97: /* External types */
 98: typedef int    MPI_Comm;
 99: typedef void   *MPI_Request;
100: typedef void   *MPI_Group;
101: typedef struct {int MPI_TAG,MPI_SOURCE,MPI_ERROR;} MPI_Status;
102: typedef char   *MPI_Errhandler;
103: typedef int    MPI_Fint;


107: /* In order to handle datatypes, we make them into "sizeof(raw-type)";
108:     this allows us to do the MPIUNI_Memcpy's easily */
109: #define MPI_Datatype        int
110: #define MPI_FLOAT           sizeof(float)
111: #define MPI_DOUBLE          sizeof(double)
112: #define MPI_LONG_DOUBLE     sizeof(long double)
113: #define MPI_CHAR            sizeof(char)
114: #define MPI_BYTE            sizeof(char)
115: #define MPI_INT             sizeof(int)
116: #define MPI_LONG            sizeof(long)
117: #define MPI_LONG_LONG_INT   sizeof(long long)
118: #define MPI_SHORT           sizeof(short)
119: #define MPI_UNSIGNED_SHORT  sizeof(unsigned short)
120: #define MPI_UNSIGNED        sizeof(unsigned)
121: #define MPI_UNSIGNED_CHAR   sizeof(unsigned char)
122: #define MPI_UNSIGNED_LONG   sizeof(unsigned long)
123: #define MPI_COMPLEX         2*sizeof(float)
124: #define MPI_DOUBLE_COMPLEX  2*sizeof(double)
125: #define MPI_FLOAT_INT       (sizeof(float) + sizeof(int))
126: #define MPI_DOUBLE_INT      (sizeof(double) + sizeof(int))
127: #define MPI_LONG_INT        (sizeof(long) + sizeof(int))
128: #define MPI_SHORT_INT       (sizeof(short) + sizeof(int))
129: #define MPI_2INT            (2* sizeof(int))

131: #define MPI_REQUEST_NULL    ((MPI_Request)0)
132: #define MPI_GROUP_NULL      ((MPI_Group)0)
133: typedef int MPI_Op;

135: #define MPI_SUM           0
136: #define MPI_MAX           0
137: #define MPI_MIN           0
138: #define MPI_ANY_TAG     (-1)
139: #define MPI_DATATYPE_NULL 0

141: #define MPI_MAX_ERROR_STRING 2056
142: /*
143:   Prototypes of some functions which are implemented in mpi.c
144: */
145: typedef int   (MPI_Copy_function)(MPI_Comm,int,void *,void *,void *,int *);
146: typedef int   (MPI_Delete_function)(MPI_Comm,int,void *,void *);
147: typedef void  (MPI_User_function)(void*, void *, int *, MPI_Datatype *);

149: /*
150:   In order that the PETSc MPIUNI can be used with another package that has its
151:   own MPIUni we map the following function names to a unique PETSc name. Those functions
152:   are defined in mpi.c
153: */


168: #define MPI_Abort         Petsc_MPI_Abort
169: #define MPI_Attr_get      Petsc_MPI_Attr_get
170: #define MPI_Keyval_free   Petsc_MPI_Keyval_free
171: #define MPI_Attr_put      Petsc_MPI_Attr_put
172: #define MPI_Attr_delete   Petsc_MPI_Attr_delete
173: #define MPI_Keyval_create Petsc_MPI_Keyval_create
174: #define MPI_Comm_free     Petsc_MPI_Comm_free
175: #define MPI_Comm_dup      Petsc_MPI_Comm_dup

177: #define MPI_Init          Petsc_MPI_Init
178: #define MPI_Finalize      Petsc_MPI_Finalize
179: #define MPI_Initialized   Petsc_MPI_Initialized
180: #define MPI_Finalized     Petsc_MPI_Finalized

182: #define MPI_Aint int
183: /* 
184:     Routines we have replace with macros that do nothing 
185:     Some return error codes others return success
186: */

188: #define MPI_Comm_f2c(comm) (MPI_Comm)(comm)
189: #define MPI_Comm_c2f(comm) (MPI_Fint)(comm)

191: #define MPI_Send(buf,count,datatype,dest,tag,comm)  \
192:      (MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (buf),\
193:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (count),\
194:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (datatype),\
195:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (dest),\
196:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (tag),\
197:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (comm),\
198:       MPI_SUCCESS)
199: #define MPI_Recv(buf,count,datatype,source,tag,comm,status) \
200:      (MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (buf),\
201:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (count),\
202:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (datatype),\
203:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (source),\
204:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (tag),\
205:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (comm),\
206:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (status),\
207:       MPI_Abort(MPI_COMM_WORLD,0))
208: #define MPI_Get_count(status, datatype,count) \
209:      (MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (status),\
210:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (datatype),\
211:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (count),\
212:       MPI_Abort(MPI_COMM_WORLD,0))
213: #define MPI_Bsend(buf,count,datatype,dest,tag,comm)  \
214:      (MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (buf),\
215:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (count),\
216:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (datatype),\
217:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (dest),\
218:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (tag),\
219:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (comm),\
220:       MPI_SUCCESS)
221: #define MPI_Ssend(buf,count, datatype,dest,tag,comm) \
222:      (MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (buf),\
223:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (count),\
224:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (datatype),\
225:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (dest),\
226:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (tag),\
227:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (comm),\
228:       MPI_SUCCESS)
229: #define MPI_Rsend(buf,count, datatype,dest,tag,comm) \
230:      (MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (buf),\
231:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (count),\
232:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (datatype),\
233:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (dest),\
234:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (tag),\
235:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (comm),\
236:       MPI_SUCCESS)
237: #define MPI_Buffer_attach(buffer,size) \
238:      (MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (buffer),\
239:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (size),\
240:       MPI_SUCCESS)
241: #define MPI_Buffer_detach(buffer,size)\
242:      (MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (buffer),\
243:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (size),\
244:       MPI_SUCCESS)
245: #define MPI_Ibsend(buf,count, datatype,dest,tag,comm,request) \
246:      (MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (buf),\
247:        MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (count),\
248:        MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (datatype),\
249:        MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (dest),\
250:        MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (tag),\
251:        MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (comm),\
252:        MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (request),\
253:        MPI_SUCCESS)
254: #define MPI_Issend(buf,count, datatype,dest,tag,comm,request) \
255:      (MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (buf),\
256:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (count),\
257:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (datatype),\
258:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (dest),\
259:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (tag),\
260:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (comm),\
261:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (request),\
262:       MPI_SUCCESS)
263: #define MPI_Irsend(buf,count, datatype,dest,tag,comm,request) \
264:      (MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (buf),\
265:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (count),\
266:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (datatype),\
267:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (dest),\
268:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (tag),\
269:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (comm),\
270:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (request),\
271:       MPI_SUCCESS)
272: #define MPI_Irecv(buf,count, datatype,source,tag,comm,request) \
273:      (MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (buf),\
274:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (count),\
275:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (datatype),\
276:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (source),\
277:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (tag),\
278:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (comm),\
279:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (request),\
280:       MPI_Abort(MPI_COMM_WORLD,0))
281: #define MPI_Isend(buf,count, datatype,dest,tag,comm,request) \
282:      (MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (buf),\
283:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (count),\
284:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (datatype),\
285:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (dest),\
286:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (tag),\
287:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (comm),\
288:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (request),\
289:       MPI_Abort(MPI_COMM_WORLD,0))
290: #define MPI_Wait(request,status) \
291:      (MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (request),\
292:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (status),\
293:       MPI_SUCCESS)
294: #define MPI_Test(request,flag,status) \
295:      (MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (request),\
296:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (status),\
297:       *(flag) = 0, \
298:       MPI_SUCCESS)
299: #define MPI_Request_free(request) \
300:      (MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (request),\
301:       MPI_SUCCESS)
302: #define MPI_Waitany(a,b,c,d) \
303:      (MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (a),\
304:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (b),\
305:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (c),\
306:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (d),\
307:       MPI_SUCCESS)
308: #define MPI_Testany(a,b,c,d,e) \
309:      (MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (a),\
310:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (b),\
311:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (c),\
312:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (d),\
313:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (e),\
314:       MPI_SUCCESS)
315: #define MPI_Waitall(count,array_of_requests,array_of_statuses) \
316:      (MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (count),\
317:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (array_of_requests),\
318:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (array_of_statuses),\
319:       MPI_SUCCESS)
320: #define MPI_Testall(count,array_of_requests,flag,array_of_statuses) \
321:      (MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (count),\
322:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (array_of_requests),\
323:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (flag),\
324:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (array_of_statuses),\
325:       MPI_SUCCESS)
326: #define MPI_Waitsome(incount,array_of_requests,outcount,\
327:                      array_of_indices,array_of_statuses) \
328:      (MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (incount),\
329:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (array_of_requests),\
330:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (outcount),\
331:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (array_of_indices),\
332:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (array_of_statuses),\
333:       MPI_SUCCESS)
334: #define MPI_Comm_group(comm,group) \
335:      (MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (comm),\
336:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (group),\
337:       MPI_SUCCESS)
338: #define MPI_Group_incl(group,n,ranks,newgroup) \
339:      (MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (group),\
340:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (n),\
341:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (ranks),\
342:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (newgroup),\
343:       MPI_SUCCESS)
344: #define MPI_Testsome(incount,array_of_requests,outcount,\
345:                      array_of_indices,array_of_statuses) MPI_SUCCESS
346: #define MPI_Iprobe(source,tag,comm,flag,status) (*(flag)=0, MPI_SUCCESS)
347: #define MPI_Probe(source,tag,comm,status) MPI_SUCCESS
348: #define MPI_Cancel(request) (MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (request),MPI_SUCCESS)
349: #define MPI_Test_cancelled(status,flag) (*(flag)=0,MPI_SUCCESS)
350: #define MPI_Send_init(buf,count, datatype,dest,tag,comm,request) \
351:      (MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (buf),\
352:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (count),\
353:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (datatype),\
354:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (dest),\
355:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (tag),\
356:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (comm),\
357:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (request),\
358:      MPI_SUCCESS)
359: #define MPI_Bsend_init(buf,count, datatype,dest,tag,comm,request) \
360:      (MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (buf),\
361:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (count),\
362:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (datatype),\
363:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (dest),\
364:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (tag),\
365:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (comm),\
366:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (request),\
367:      MPI_SUCCESS)
368: #define MPI_Ssend_init(buf,count, datatype,dest,tag,comm,request) \
369:      (MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (buf),\
370:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (count),\
371:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (datatype),\
372:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (dest),\
373:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (tag),\
374:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (comm),\
375:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (request),\
376:      MPI_SUCCESS)
377: #define MPI_Bsend_init(buf,count, datatype,dest,tag,comm,request) \
378:      (MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (buf),\
379:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (count),\
380:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (datatype),\
381:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (dest),\
382:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (tag),\
383:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (comm),\
384:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (request),\
385:      MPI_SUCCESS)
386: #define MPI_Rsend_init(buf,count, datatype,dest,tag,comm,request) \
387:      (MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (buf),\
388:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (count),\
389:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (datatype),\
390:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (dest),\
391:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (tag),\
392:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (comm),\
393:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (request),\
394:      MPI_SUCCESS)
395: #define MPI_Recv_init(buf,count, datatype,source,tag,comm,request) \
396:      (MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (buf),\
397:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (count),\
398:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (datatype),\
399:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (source),\
400:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (tag),\
401:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (comm),\
402:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (request),\
403:      MPI_SUCCESS)
404: #define MPI_Start(request) (MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (request),MPI_SUCCESS)
405: #define MPI_Startall(count,array_of_requests) \
406:      (MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (count),\
407:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (array_of_requests),\
408:      MPI_SUCCESS)
409: #define MPI_Op_create(function,commute,op) \
410:      (MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (function),\
411:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (commute),\
412:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (op),\
413:      MPI_SUCCESS)
414: #define MPI_Op_free(op) \
415:      (MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (op),\
416:      MPI_SUCCESS)
417:      /* Need to determine sizeof "sendtype" */
418: #define MPI_Sendrecv(sendbuf,sendcount, sendtype,\
419:      dest,sendtag,recvbuf,recvcount,\
420:      recvtype,source,recvtag,\
421:      comm,status) \
422:      MPIUNI_Memcpy(recvbuf,sendbuf,(sendcount) * (sendtype))
423: #define MPI_Sendrecv_replace(buf,count, datatype,dest,sendtag,\
424:      source,recvtag,comm,status) MPI_SUCCESS
425: #define MPI_Type_contiguous(count, oldtype,newtype) \
426:      (*(newtype) = (count)*(oldtype),MPI_SUCCESS)
427: #define MPI_Type_vector(count,blocklength,stride,oldtype, newtype) MPI_SUCCESS
428: #define MPI_Type_hvector(count,blocklength,stride,oldtype, newtype) MPI_SUCCESS
429: #define MPI_Type_indexed(count,array_of_blocklengths,\
430:      array_of_displacements, oldtype,\
431:      newtype) MPI_SUCCESS
432: #define MPI_Type_hindexed(count,array_of_blocklengths,\
433:      array_of_displacements, oldtype,\
434:      newtype) MPI_SUCCESS
435: #define MPI_Type_struct(count,array_of_blocklengths,\
436:      array_of_displacements,\
437:      array_of_types, newtype) MPI_SUCCESS
438: #define MPI_Address(location,address) \
439:      (*(address) = (MPIUNI_INTPTR)(char *)(location),MPI_SUCCESS)
440: #define MPI_Type_extent(datatype,extent) \
441:      MPI_Abort(MPI_COMM_WORLD,0)
442: #define MPI_Type_size(datatype,size) \
443:      MPI_Abort(MPI_COMM_WORLD,0)
444: #define MPI_Type_lb(datatype,displacement) \
445:      MPI_Abort(MPI_COMM_WORLD,0)
446: #define MPI_Type_ub(datatype,displacement) \
447:      MPI_Abort(MPI_COMM_WORLD,0)
448: #define MPI_Type_commit(datatype) (MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (datatype),\
449:      MPI_SUCCESS)
450: #define MPI_Type_free(datatype) MPI_SUCCESS
451: #define MPI_Get_elements(status, datatype,count) \
452:      MPI_Abort(MPI_COMM_WORLD,0)
453: #define MPI_Pack(inbuf,incount, datatype,outbuf,\
454:      outsize,position, comm) \
455:      MPI_Abort(MPI_COMM_WORLD,0)
456: #define MPI_Unpack(inbuf,insize,position,outbuf,\
457:      outcount, datatype,comm) \
458:      MPI_Abort(MPI_COMM_WORLD,0)
459: #define MPI_Pack_size(incount, datatype,comm,size) \
460:      MPI_Abort(MPI_COMM_WORLD,0)
461: #define MPI_Barrier(comm) \
462:      (MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (comm),\
463:      MPI_SUCCESS)
464: #define MPI_Bcast(buffer,count,datatype,root,comm) \
465:      (MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (buffer),\
466:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (count),\
467:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (datatype),\
468:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (comm),\
469:      MPI_SUCCESS)
470: #define MPI_Gather(sendbuf,sendcount, sendtype,\
471:      recvbuf,recvcount, recvtype,\
472:      root,comm) \
473:      (MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (recvcount),\
474:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (root),\
475:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (recvtype),\
476:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (comm),\
477:      MPIUNI_Memcpy(recvbuf,sendbuf,(sendcount)* (sendtype)),\
478:      MPI_SUCCESS)
479: #define MPI_Gatherv(sendbuf,sendcount, sendtype,\
480:      recvbuf,recvcounts,displs,\
481:      recvtype,root,comm) \
482:      (MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (recvcounts),\
483:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (displs),\
484:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (recvtype),\
485:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (root),\
486:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (comm),\
487:      MPIUNI_Memcpy(recvbuf,sendbuf,(sendcount)* (sendtype)),\
488:      MPI_SUCCESS)
489: #define MPI_Scatter(sendbuf,sendcount, sendtype,\
490:      recvbuf,recvcount, recvtype,\
491:      root,comm) \
492:      (MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (sendbuf),\
493:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (sendcount),\
494:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (sendtype),\
495:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (recvbuf),\
496:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (recvcount),\
497:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (recvtype),\
498:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (root),\
499:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (comm),MPI_Abort(MPI_COMM_WORLD,0))
500: #define MPI_Scatterv(sendbuf,sendcounts,displs,\
501:      sendtype, recvbuf,recvcount,\
502:      recvtype,root,comm) \
503:      (MPIUNI_Memcpy(recvbuf,sendbuf,(recvcount)*(recvtype)),\
504:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (displs),\
505:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (sendtype),\
506:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (sendcounts),\
507:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (root),\
508:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (comm),\
509:      MPI_SUCCESS)
510: #define MPI_Allgather(sendbuf,sendcount, sendtype,\
511:      recvbuf,recvcount, recvtype,comm) \
512:      (MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (recvcount),\
513:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (recvtype),\
514:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (comm),\
515:      MPIUNI_Memcpy(recvbuf,sendbuf,(sendcount)* (sendtype)),\
516:      MPI_SUCCESS)
517: #define MPI_Allgatherv(sendbuf,sendcount, sendtype,\
518:      recvbuf,recvcounts,displs,recvtype,comm) \
519:      (MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (recvcounts),\
520:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (displs),\
521:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (recvtype),\
522:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (comm),\
523:      MPIUNI_Memcpy(recvbuf,sendbuf,(sendcount)* (sendtype)),\
524:      MPI_SUCCESS)
525: #define MPI_Alltoall(sendbuf,sendcount, sendtype,\
526:      recvbuf,recvcount, recvtype,comm) \
527:      (MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (recvcount),\
528:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (recvtype),\
529:       MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (comm),\
530:       MPIUNI_Memcpy(recvbuf,sendbuf,(sendcount)* (sendtype)),\
531:       MPI_SUCCESS)
532: #define MPI_Alltoallv(sendbuf,sendcounts,sdispls,\
533:      sendtype, recvbuf,recvcounts,\
534:      rdispls, recvtype,comm) MPI_Abort(MPI_COMM_WORLD,0)
535: #define MPI_Alltoallw(sendbuf,sendcounts,sdispls,\
536:      sendtypes, recvbuf,recvcounts,\
537:      rdispls, recvtypes,comm) MPI_Abort(MPI_COMM_WORLD,0)
538: #define MPI_Reduce(sendbuf, recvbuf,count,\
539:      datatype,op,root,comm) \
540:      (MPIUNI_Memcpy(recvbuf,sendbuf,(count)*(datatype)),\
541:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (comm),MPI_SUCCESS)
542: #define MPI_Allreduce(sendbuf, recvbuf,count,datatype,op,comm) \
543:      (MPIUNI_Memcpy(recvbuf,sendbuf,(count)*(datatype)),\
544:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (comm),MPI_SUCCESS)
545: #define MPI_Scan(sendbuf, recvbuf,count,datatype,op,comm) \
546:      (MPIUNI_Memcpy(recvbuf,sendbuf,(count)*(datatype)),\
547:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (comm),MPI_SUCCESS)
548: #define MPI_Reduce_scatter(sendbuf, recvbuf,recvcounts,\
549:      datatype,op,comm) \
550:      MPI_Abort(MPI_COMM_WORLD,0)
551: #define MPI_Group_size(group,size) (*(size)=1,MPI_SUCCESS)
552: #define MPI_Group_rank(group,rank) (*(rank)=0,MPI_SUCCESS)
553: #define MPI_Group_translate_ranks (group1,n,ranks1,\
554:      group2,ranks2) MPI_Abort(MPI_COMM_WORLD,0)
555: #define MPI_Group_compare(group1,group2,result) \
556:      (*(result)=1,MPI_SUCCESS)
557: #define MPI_Group_union(group1,group2,newgroup) MPI_SUCCESS
558: #define MPI_Group_intersection(group1,group2,newgroup) MPI_SUCCESS
559: #define MPI_Group_difference(group1,group2,newgroup) MPI_SUCCESS
560: #define MPI_Group_excl(group,n,ranks,newgroup) MPI_SUCCESS
561: #define MPI_Group_range_incl(group,n,ranges,newgroup) MPI_SUCCESS
562: #define MPI_Group_range_excl(group,n,ranges,newgroup) MPI_SUCCESS
563: #define MPI_Group_free(group) \
564:      (MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (group),\
565:      MPI_SUCCESS)
566: #define MPI_Comm_size(comm,size) \
567:      (MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (comm),\
568:      *(size)=1,\
569:      MPI_SUCCESS)
570: #define MPI_Comm_rank(comm,rank) \
571:      (MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (comm),\
572:      *(rank)=0,\
573:      MPI_SUCCESS)
574: #define MPI_Comm_compare(comm1,comm2,result) \
575:      (MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (comm1),\
576:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (comm2),\
577:      *(result)=MPI_IDENT,\
578:      MPI_SUCCESS)
579: #define MPI_Comm_create(comm,group,newcomm)  \
580:      (*(newcomm) =  (comm),\
581:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (group),\
582:      MPI_SUCCESS)
583: #define MPI_Comm_split(comm,color,key,newcomm) MPI_SUCCESS
584: #define MPI_Comm_test_inter(comm,flag) (*(flag)=1,MPI_SUCCESS)
585: #define MPI_Comm_remote_size(comm,size) (*(size)=1,MPI_SUCCESS)
586: #define MPI_Comm_remote_group(comm,group) MPI_SUCCESS
587: #define MPI_Intercomm_create(local_comm,local_leader,peer_comm,\
588:      remote_leader,tag,newintercomm) MPI_SUCCESS
589: #define MPI_Intercomm_merge(intercomm,high,newintracomm) MPI_SUCCESS

591: #define MPI_Topo_test(comm,status) MPI_SUCCESS
592: #define MPI_Cart_create(comm_old,ndims,dims,periods,\
593:      reorder,comm_cart) MPI_SUCCESS
594: #define MPI_Dims_create(nnodes,ndims,dims) MPI_Abort(MPI_COMM_WORLD,0)
595: #define MPI_Graph_create(comm,a,b,c,d,e) MPI_SUCCESS
596: #define MPI_Graphdims_Get(comm,nnodes,nedges) MPI_Abort(MPI_COMM_WORLD,0)
597: #define MPI_Graph_get(comm,a,b,c,d) MPI_Abort(MPI_COMM_WORLD,0)
598: #define MPI_Cartdim_get(comm,ndims) MPI_Abort(MPI_COMM_WORLD,0)
599: #define MPI_Cart_get(comm,maxdims,dims,periods,coords) \
600:      MPI_Abort(MPI_COMM_WORLD,0)
601: #define MPI_Cart_rank(comm,coords,rank) MPI_Abort(MPI_COMM_WORLD,0)
602: #define MPI_Cart_coords(comm,rank,maxdims,coords) \
603:      MPI_Abort(MPI_COMM_WORLD,0)
604: #define MPI_Graph_neighbors_count(comm,rank,nneighbors) \
605:      MPI_Abort(MPI_COMM_WORLD,0)
606: #define MPI_Graph_neighbors(comm,rank,maxneighbors,neighbors) \
607:      MPI_Abort(MPI_COMM_WORLD,0)
608: #define MPI_Cart_shift(comm,direction,disp,rank_source,rank_dest) \
609:      MPI_Abort(MPI_COMM_WORLD,0)
610: #define MPI_Cart_sub(comm,remain_dims,newcomm) MPI_Abort(MPI_COMM_WORLD,0)
611: #define MPI_Cart_map(comm,ndims,dims,periods,newrank) MPI_Abort(MPI_COMM_WORLD,0)
612: #define MPI_Graph_map(comm,a,b,c,d) MPI_Abort(MPI_COMM_WORLD,0)
613: #define MPI_Get_processor_name(name,result_len) \
614:      (MPIUNI_Memcpy(name,"localhost",9*sizeof(char)),name[10] = 0,*(result_len) = 10)
615: #define MPI_Errhandler_create(function,errhandler) \
616:      (MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (errhandler),\
617:      MPI_SUCCESS)
618: #define MPI_Errhandler_set(comm,errhandler) \
619:      (MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (comm),\
620:      MPIUNI_TMP = (void*)(MPIUNI_INTPTR) (errhandler),\
621:      MPI_SUCCESS)
622: #define MPI_Errhandler_get(comm,errhandler) MPI_SUCCESS
623: #define MPI_Errhandler_free(errhandler) MPI_SUCCESS
624: #define MPI_Error_string(errorcode,string,result_len) MPI_SUCCESS
625: #define MPI_Error_class(errorcode,errorclass) MPI_SUCCESS
626: #define MPI_Wtick() 1.0
627: #define MPI_Wtime() 0.0
628: #define MPI_Pcontrol(level) MPI_SUCCESS

630: #define MPI_NULL_COPY_FN   0
631: #define MPI_NULL_DELETE_FN 0

633: #if defined(__cplusplus)
634: }
635: #endif
636: #endif