Actual source code: mpi.h

  1: /* $Id: mpi.h,v 1.87 2001/04/10 19:34:44 bsmith Exp $ */

  3: /*
  4:    This is a special set of bindings for uni-processor use of MPI by the PETSc library.
  5:  
  6:    NOT ALL THE MPI CALLS ARE IMPLEMENTED CORRECTLY! Only those needed in PETSc.

  8:    For example,
  9:    * Does not implement send to self.
 10:    * Does not implement attributes correctly.
 11: */

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

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

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

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

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

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

 48:   Proper implementation of send/receive would involve writing a
 49:   function for each of them. Inside each of these functions, we have
 50:   to check if the send is to self or receive is from self, and then
 51:   doing the buffering accordingly (until the receive is called) - or
 52:   what if a nonblocking receive is called, do a copy etc.. Handling
 53:   the buffering aspects might be complicated enough, that in this
 54:   case, a proper implementation of MPI might as well be used. This is
 55:   the reason the send to self is not implemented in MPIUNI, and never
 56:   will be.
 57: */


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

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

 70: #if defined(__BSdependh)
 71: #error You cannot use MPI-uni with BlockSolve95
 72: #endif
 73: #if defined(__basic_H)
 74: #error You cannot use MPI-uni with SPAI
 75: #endif

 77: #define _petsc_mpi_uni

 79: /*

 81:     MPIUNI_TMP is used in the macros below only to stop various C/C++ compilers
 82: from generating warning messages about unused variables while compiling PETSc.
 83: */
 84: extern void *MPIUNI_TMP;

 86: #define MPI_COMM_WORLD       1
 87: #define MPI_COMM_SELF        MPI_COMM_WORLD
 88: #define MPI_COMM_NULL        0
 89: #define MPI_SUCCESS          0
 90: #define MPI_IDENT            0
 91: #define MPI_CONGRUENT        0
 92: #define MPI_SIMILAR          0
 93: #define MPI_UNEQUAL          3
 94: #define MPI_ANY_SOURCE     (-2)
 95: #define MPI_KEYVAL_INVALID   0
 96: #define MPI_ERR_UNKNOWN     18
 97: #define MPI_ERR_INTERN      21
 98: #define MPI_ERR_OTHER        1
 99: #define MPI_TAG_UB           0
100: #define MPI_ERRORS_RETURN    0

102: /* External types */
103: typedef int    MPI_Comm;
104: typedef void   *MPI_Request;
105: typedef void   *MPI_Group;
106: typedef struct {int MPI_TAG,MPI_SOURCE,MPI_ERROR;} MPI_Status;
107: typedef char   *MPI_Errhandler;
108: typedef int    MPI_Fint;

110: extern int MPIUNI_Memcpy(void*,void*,int);

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



136: #define MPI_REQUEST_NULL    ((MPI_Request)0)
137: #define MPI_GROUP_NULL      ((MPI_Group)0)
138: typedef int MPI_Op;

140: #define MPI_SUM           0
141: #define MPI_ANY_TAG     (-1)
142: #define MPI_DATATYPE_NULL 0
143: /*
144:   Prototypes of some functions which are implemented in mpi.c
145: */
146: typedef int   (MPI_Copy_function)(MPI_Comm,int,void *,void *,void *,int *);
147: typedef int   (MPI_Delete_function)(MPI_Comm,int,void *,void *);
148: typedef void  (MPI_User_function)(void *, void *, int *, MPI_Datatype *);

150: /*
151:   In order that the PETSc MPIUNI can be used with another package that has its
152:   own MPIUni we map the following function names to a unique PETSc name. Those functions
153:   are defined in mpi.c
154: */
155: extern int    Petsc_MPI_Abort(MPI_Comm,int);
156: extern int    Petsc_MPI_Attr_get(MPI_Comm comm,int keyval,void *attribute_val,int *flag);
157: extern int    Petsc_MPI_Keyval_free(int*);
158: extern int    Petsc_MPI_Attr_put(MPI_Comm,int,void *);
159: extern int    Petsc_MPI_Attr_delete(MPI_Comm,int);
160: extern int    Petsc_MPI_Keyval_create(MPI_Copy_function *,MPI_Delete_function *,int *,void *);
161: extern int    Petsc_MPI_Comm_free(MPI_Comm*);
162: extern int    Petsc_MPI_Initialized(int *);
163: extern int    Petsc_MPI_Comm_dup(MPI_Comm,MPI_Comm *);
164: extern int    Petsc_MPI_Finalize(void);

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

177: /* 
178:     Routines we have replace with macros that do nothing 
179:     Some return error codes others return success
180: */

182: #define MPI_Comm_f2c(comm) (MPI_Comm)(comm)
183: #define MPI_Comm_c2f(comm) (MPI_Fint)(comm)


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

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

626: #define MPI_NULL_COPY_FN   0
627: #define MPI_NULL_DELETE_FN 0

629: #endif