Actual source code: mpi.h

  1: /*
  2:    This is a special set of bindings for uni-processor use of MPI by the PETSc library.

  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 a full MPI implementation. With this, we
 17:   were able to provide PETSc on Windows, Windows64 even before any MPI
 18:   implementation was available on these platforms. [Or with certain
 19:   compilers - like borland, that do not have a usable MPI
 20:   implementation]

 22:   However - providing a sequential, standards compliant MPI
 23:   implementation is *not* the goal of MPIUNI. The development strategy
 24:   was - to make enough changes to it so that PETSc sources, examples
 25:   compile without errors, and runs in the uni-processor mode. This is
 26:   the reason each function is not documented.

 28:   PETSc usage of MPIUNI is primarily from C. However a minimal fortran
 29:   interface is also provided - to get PETSc fortran examples with a
 30:   few MPI calls working.

 32:   One of the optimzation with MPIUNI, is to avoid the function call
 33:   overhead, when possible. Hence most of the C functions are
 34:   implemented as macros. However the function calls cannot be avoided
 35:   with fortran usage.

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

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

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

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

 64:   Proper implementations of MPI [for eg: MPICH & OpenMPI] are
 65:   available for most machines. When these packages are available, Its
 66:   generally preferable to use one of them instead of MPIUNI - even if
 67:   the user is using PETSc sequentially.

 69:     - MPIUNI does not support all MPI functions [or functionality].
 70:     Hence it might not work with external packages or user code that
 71:     might have MPI calls in it.

 73:     - MPIUNI is not a standards compliant implementation for np=1.
 74:     For eg: if the user code has send/recv to self, then it will
 75:     abort. [Similar issues with a number of other MPI functionality]
 76:     However MPICH & OpenMPI are the correct implementations of MPI
 77:     standard for np=1.

 79:     - When user code uses multiple MPI based packages that have their
 80:     own *internal* stubs equivalent to MPIUNI - in sequential mode,
 81:     invariably these multiple implementations of MPI for np=1 conflict
 82:     with each other. The correct thing to do is: make all such
 83:     packages use the *same* MPI implementation for np=1. MPICH/OpenMPI
 84:     satisfy this requirement correctly [and hence the correct choice].

 86:     - Using MPICH/OpenMPI sequentially should have minimal
 87:     disadvantages. [for eg: these binaries can be run without
 88:     mpirun/mpiexec as ./executable, without requiring any extra
 89:     configurations for ssh/rsh/daemons etc..]. This should not be a
 90:     reason to avoid these packages for sequential use.

 92: */

 94: #if !defined(MPIUNI_H)
 95: #define MPIUNI_H

 97: /* Required by abort() in mpi.c & for win64 */
 98: #include <petscconf.h>
 99: #include <stddef.h>

101: /*  This is reproduced from petscsys.h so that mpi.h can be used standalone without first including petscsys.h */
102: #if defined(_WIN32) && defined(PETSC_USE_SHARED_LIBRARIES)
103: #  define MPIUni_ __declspec(dllexport)
104: #  define MPIUni_PETSC_DLLIMPORT __declspec(dllimport)
105: #elif defined(PETSC_USE_VISIBILITY_CXX) && defined(__cplusplus)
106: #  define MPIUni_ __attribute__((visibility ("default")))
107: #  define MPIUni_PETSC_DLLIMPORT __attribute__((visibility ("default")))
108: #elif defined(PETSC_USE_VISIBILITY_C) && !defined(__cplusplus)
109: #  define MPIUni_ __attribute__((visibility ("default")))
110: #  define MPIUni_PETSC_DLLIMPORT __attribute__((visibility ("default")))
111: #else
112: #  define MPIUni_
113: #  define MPIUni_PETSC_DLLIMPORT
114: #endif

116: #if defined(petsc_EXPORTS)
117: #  define MPIUni_PETSC_VISIBILITY_PUBLIC MPIUni_
118: #else  /* Win32 users need this to import symbols from petsc.dll */
119: #  define MPIUni_PETSC_VISIBILITY_PUBLIC MPIUni_PETSC_DLLIMPORT
120: #endif

122: #if defined(__cplusplus)
123: #define MPIUni_PETSC_EXTERN extern "C" MPIUni_PETSC_VISIBILITY_PUBLIC
124: #else
125: #define MPIUni_PETSC_EXTERN extern MPIUni_PETSC_VISIBILITY_PUBLIC
126: #endif

128: #if defined(__cplusplus)
129: extern "C" {
130: #endif

132: /* MPI_Aint has to be a signed integral type large enough to hold a pointer */
133: typedef ptrdiff_t MPI_Aint;

135: /* old 32bit MS compiler does not support long long */
136: #if defined(PETSC_SIZEOF_LONG_LONG)
137: typedef long long MPIUNI_INT64;
138: typedef unsigned long long MPIUNI_UINT64;
139: #elif defined(PETSC_HAVE___INT64)
140: typedef _int64 MPIUNI_INT64;
141: typedef unsigned _int64 MPIUNI_UINT64;
142: #else
143: #error "cannot determine MPIUNI_INT64, MPIUNI_UINT64 types"
144: #endif

146: /*

148:  MPIUNI_ARG is used in the macros below only to stop various C/C++ compilers
149:  from generating warning messages about unused variables while compiling PETSc.
150: */
151: MPIUni_PETSC_EXTERN void *MPIUNI_TMP;
152: #define MPIUNI_ARG(arg) (MPIUNI_TMP = (void *)(MPI_Aint) (arg))

154: #define MPI_IDENT            0
155: #define MPI_CONGRUENT        1
156: #define MPI_SIMILAR          2
157: #define MPI_UNEQUAL          3

159: #define MPI_BOTTOM   ((void *) 0)
160: #define MPI_IN_PLACE ((void *)-1)

162: #define MPI_PROC_NULL      (-1)
163: #define MPI_ANY_SOURCE     (-2)
164: #define MPI_ANY_TAG        (-1)
165: #define MPI_UNDEFINED  (-32766)

167: #define MPI_SUCCESS          0
168: #define MPI_ERR_OTHER       17
169: #define MPI_ERR_UNKNOWN     18
170: #define MPI_ERR_INTERN      21
171: #define MPI_ERR_NOSUPPORT   22

173: #define MPI_KEYVAL_INVALID   0
174: #define MPI_TAG_UB           0

176: #define MPI_MAX_PROCESSOR_NAME 1024
177: #define MPI_MAX_ERROR_STRING   2056

179: typedef int MPI_Comm;
180: #define MPI_COMM_NULL  0
181: #define MPI_COMM_SELF  1
182: #define MPI_COMM_WORLD 2
183: #define MPI_COMM_TYPE_SHARED 1

185: typedef int MPI_Info;
186: #define MPI_INFO_NULL 0

188: typedef struct {int MPI_SOURCE,MPI_TAG,MPI_ERROR;} MPI_Status;
189: #define MPI_STATUS_IGNORE   (MPI_Status *)0
190: #define MPI_STATUSES_IGNORE (MPI_Status *)0

192: /* 32-bit packing scheme: [combiner:4 | type-index:8 | count:12 | base-bytes:8] */
193: /* Any changes here must also be reflected in mpif.h */
194: typedef int MPI_Datatype;
195: #define MPI_DATATYPE_NULL      0
196: #define MPI_PACKED             0

198: #define MPI_FLOAT              (1 << 20 | 1 << 8 | (int)sizeof(float))
199: #define MPI_DOUBLE             (1 << 20 | 1 << 8 | (int)sizeof(double))
200: #define MPI_LONG_DOUBLE        (1 << 20 | 1 << 8 | (int)sizeof(long double))

202: #define MPI_COMPLEX            (2 << 20 | 1 << 8 | 2*(int)sizeof(float))
203: #define MPI_C_COMPLEX          (2 << 20 | 1 << 8 | 2*(int)sizeof(float))
204: #define MPI_C_FLOAT_COMPLEX    (2 << 20 | 1 << 8 | 2*(int)sizeof(float))
205: #define MPI_DOUBLE_COMPLEX     (2 << 20 | 1 << 8 | 2*(int)sizeof(double))
206: #define MPI_C_DOUBLE_COMPLEX   (2 << 20 | 1 << 8 | 2*(int)sizeof(double))

208: #define MPI_CHAR               (3 << 20 | 1 << 8 | (int)sizeof(char))
209: #define MPI_BYTE               (3 << 20 | 1 << 8 | (int)sizeof(char))
210: #define MPI_SIGNED_CHAR        (3 << 20 | 1 << 8 | (int)sizeof(signed char))
211: #define MPI_UNSIGNED_CHAR      (3 << 20 | 1 << 8 | (int)sizeof(unsigned char))

213: #define MPI_SHORT              (4 << 20 | 1 << 8 | (int)sizeof(short))
214: #define MPI_INT                (4 << 20 | 1 << 8 | (int)sizeof(int))
215: #define MPI_LONG               (4 << 20 | 1 << 8 | (int)sizeof(long))
216: #define MPI_LONG_LONG          (4 << 20 | 1 << 8 | (int)sizeof(MPIUNI_INT64))
217: #define MPI_LONG_LONG_INT      MPI_LONG_LONG
218: #define MPI_INTEGER8           MPI_LONG_LONG
219: #define MPI_INT8_T             (5 << 20 | 1 << 8 | (int)sizeof(int8_t))
220: #define MPI_INT16_T            (5 << 20 | 1 << 8 | (int)sizeof(int16_t))
221: #define MPI_INT32_T            (5 << 20 | 1 << 8 | (int)sizeof(int32_t))

223: #define MPI_UNSIGNED_SHORT     (5 << 20 | 1 << 8 | (int)sizeof(unsigned short))
224: #define MPI_UNSIGNED           (5 << 20 | 1 << 8 | (int)sizeof(unsigned))
225: #define MPI_UNSIGNED_LONG      (5 << 20 | 1 << 8 | (int)sizeof(unsigned long))
226: #define MPI_UNSIGNED_LONG_LONG (5 << 20 | 1 << 8 | (int)sizeof(MPIUNI_UINT64))

228: #define MPI_FLOAT_INT          (10 << 20 | 1 << 8 | (int)(sizeof(float) + sizeof(int)))
229: #define MPI_DOUBLE_INT         (11 << 20 | 1 << 8 | (int)(sizeof(double) + sizeof(int)))
230: #define MPI_LONG_INT           (12 << 20 | 1 << 8 | (int)(sizeof(long) + sizeof(int)))
231: #define MPI_SHORT_INT          (13 << 20 | 1 << 8 | (int)(sizeof(short) + sizeof(int)))
232: #define MPI_2INT               (14 << 20 | 1 << 8 | (int)(2*sizeof(int)))
233: #define MPI_2DOUBLE            (15 << 20 | 1 << 8 | (int)(2*sizeof(double)))

235: /* Fortran datatypes; Jed Brown says they should be defined here */
236: #define MPI_INTEGER MPI_INT
237: #define MPI_DOUBLE_PRECISION MPI_DOUBLE
238: #define MPI_COMPLEX16 MPI_C_DOUBLE_COMPLEX
239: #define MPI_2DOUBLE_PRECISION MPI_2DOUBLE

241: #define MPI_ORDER_C            0
242: #define MPI_ORDER_FORTRAN      1

244: #define MPI_sizeof_default(datatype) ((((datatype) >> 8) & 0xfff) * ((datatype) & 0xff))
245: #if defined(PETSC_USE_REAL___FP16)
246: MPIUni_PETSC_EXTERN MPI_Datatype MPIU___FP16;
247: #define MPI_sizeof(datatype) ((datatype == MPIU___FP16) ? (int)(2*sizeof(char)) : MPI_sizeof_default(datatype))
248: #elif defined(PETSC_USE_REAL___FLOAT128)
249: MPIUni_PETSC_EXTERN MPI_Datatype MPIU___FLOAT128;
250: #define MPI_sizeof(datatype) ((datatype == MPIU___FLOAT128) ? (int)(2*sizeof(double)) : MPI_sizeof_default(datatype))
251: #else
252: #define MPI_sizeof(datatype) (MPI_sizeof_default(datatype))
253: #endif

255: MPIUni_PETSC_EXTERN int MPIUNI_Memcpy(void*,const void*,int);

257: typedef int MPI_Request;
258: #define MPI_REQUEST_NULL 0

260: typedef int MPI_Group;
261: #define MPI_GROUP_NULL  0
262: #define MPI_GROUP_EMPTY 0

264: typedef int MPI_Op;
265: #define MPI_OP_NULL    0
266: #define MPI_SUM        1
267: #define MPI_MAX        2
268: #define MPI_MIN        3
269: #define MPI_REPLACE    4
270: #define MPI_PROD       5
271: #define MPI_LAND       6
272: #define MPI_BAND       7
273: #define MPI_LOR        8
274: #define MPI_BOR        9
275: #define MPI_LXOR       10
276: #define MPI_BXOR       11
277: #define MPI_MAXLOC     12
278: #define MPI_MINLOC     13

280: typedef void (MPI_User_function)(void*, void *, int *, MPI_Datatype *);

282: typedef int MPI_Errhandler;
283: #define MPI_ERRHANDLER_NULL  0
284: #define MPI_ERRORS_RETURN    0
285: #define MPI_ERRORS_ARE_FATAL 0
286: #define MPI_ERR_LASTCODE     0x3fffffff
287: typedef void (MPI_Handler_function)(MPI_Comm *, int *, ...);

289: /*
290:   Prototypes of some functions which are implemented in mpi.c
291: */
292: typedef int (MPI_Copy_function)(MPI_Comm,int,void *,void *,void *,int *);
293: typedef int (MPI_Delete_function)(MPI_Comm,int,void *,void *);
294: #define MPI_NULL_COPY_FN   (MPI_Copy_function*)0
295: #define MPI_NULL_DELETE_FN (MPI_Delete_function*)0

297: #define MPI_THREAD_SINGLE 0
298: #define MPI_THREAD_FUNNELED 1
299: #define MPI_THREAD_SERIALIZED 2
300: #define MPI_THREAD_MULTIPLE 3

302: /*
303:   To enable linking PETSc+MPIUNI with any other package that might have its
304:   own MPIUNI (equivalent implementation) we need to avoid using 'MPI'
305:   namespace for MPIUNI functions that go into the petsc library.

307:   For C functions below (that get compiled into petsc library) - we map
308:   the 'MPI' functions to use 'Petsc_MPI' namespace.

310:   With fortran we use similar mapping - thus requiring the use of
311:   c-preprocessor with mpif.h
312: */
313: #define MPI_Abort         Petsc_MPI_Abort
314: #define MPIUni_Abort      Petsc_MPIUni_Abort
315: #define MPI_Attr_get      Petsc_MPI_Attr_get
316: #define MPI_Keyval_free   Petsc_MPI_Keyval_free
317: #define MPI_Attr_put      Petsc_MPI_Attr_put
318: #define MPI_Attr_delete   Petsc_MPI_Attr_delete
319: #define MPI_Keyval_create Petsc_MPI_Keyval_create
320: #define MPI_Comm_free     Petsc_MPI_Comm_free
321: #define MPI_Comm_dup      Petsc_MPI_Comm_dup
322: #define MPI_Comm_create   Petsc_MPI_Comm_create
323: #define MPI_Init          Petsc_MPI_Init
324: #define MPI_Init_thread   Petsc_MPI_Init_thread
325: #define MPI_Query_thread  Petsc_MPI_Query_thread
326: #define MPI_Finalize      Petsc_MPI_Finalize
327: #define MPI_Initialized   Petsc_MPI_Initialized
328: #define MPI_Finalized     Petsc_MPI_Finalized
329: #define MPI_Comm_size     Petsc_MPI_Comm_size
330: #define MPI_Comm_rank     Petsc_MPI_Comm_rank
331: #define MPI_Wtime         Petsc_MPI_Wtime
332: #define MPI_Type_get_envelope Petsc_MPI_Type_get_envelope
333: #define MPI_Type_get_contents Petsc_MPI_Type_get_contents
334: #define MPI_Add_error_class   Petsc_MPI_Add_error_class
335: #define MPI_Add_error_code    Petsc_MPI_Add_error_code

337: /* identical C bindings */
338: #define MPI_Comm_copy_attr_function   MPI_Copy_function
339: #define MPI_Comm_delete_attr_function MPI_Delete_function
340: #define MPI_COMM_NULL_COPY_FN         MPI_NULL_COPY_FN
341: #define MPI_COMM_NULL_DELETE_FN       MPI_NULL_DELETE_FN
342: #define MPI_Comm_create_keyval        Petsc_MPI_Keyval_create
343: #define MPI_Comm_free_keyval          Petsc_MPI_Keyval_free
344: #define MPI_Comm_get_attr             Petsc_MPI_Attr_get
345: #define MPI_Comm_set_attr             Petsc_MPI_Attr_put
346: #define MPI_Comm_delete_attr          Petsc_MPI_Attr_delete

348: MPIUni_PETSC_EXTERN int    MPIUni_Abort(MPI_Comm,int);
349: MPIUni_PETSC_EXTERN int    MPI_Abort(MPI_Comm,int);
350: MPIUni_PETSC_EXTERN int    MPI_Attr_get(MPI_Comm comm,int keyval,void *attribute_val,int *flag);
351: MPIUni_PETSC_EXTERN int    MPI_Keyval_free(int*);
352: MPIUni_PETSC_EXTERN int    MPI_Attr_put(MPI_Comm,int,void *);
353: MPIUni_PETSC_EXTERN int    MPI_Attr_delete(MPI_Comm,int);
354: MPIUni_PETSC_EXTERN int    MPI_Keyval_create(MPI_Copy_function *,MPI_Delete_function *,int *,void *);
355: MPIUni_PETSC_EXTERN int    MPI_Comm_free(MPI_Comm*);
356: MPIUni_PETSC_EXTERN int    MPI_Comm_dup(MPI_Comm,MPI_Comm *);
357: MPIUni_PETSC_EXTERN int    MPI_Comm_create(MPI_Comm,MPI_Group,MPI_Comm *);
358: MPIUni_PETSC_EXTERN int    MPI_Init(int *, char ***);
359: MPIUni_PETSC_EXTERN int    MPI_Init_thread(int *, char ***, int, int *);
360: MPIUni_PETSC_EXTERN int    MPI_Query_thread(int *);
361: MPIUni_PETSC_EXTERN int    MPI_Finalize(void);
362: MPIUni_PETSC_EXTERN int    MPI_Initialized(int*);
363: MPIUni_PETSC_EXTERN int    MPI_Finalized(int*);
364: MPIUni_PETSC_EXTERN int    MPI_Comm_size(MPI_Comm,int*);
365: MPIUni_PETSC_EXTERN int    MPI_Comm_rank(MPI_Comm,int*);
366: MPIUni_PETSC_EXTERN double MPI_Wtime(void);

368: MPIUni_PETSC_EXTERN int MPI_Type_get_envelope(MPI_Datatype,int*,int*,int*,int*);
369: MPIUni_PETSC_EXTERN int MPI_Type_get_contents(MPI_Datatype,int,int,int,int*,MPI_Aint*,MPI_Datatype*);
370: MPIUni_PETSC_EXTERN int MPI_Add_error_class(int*);
371: MPIUni_PETSC_EXTERN int MPI_Add_error_code(int,int*);

373: /*
374:     Routines we have replace with macros that do nothing
375:     Some return error codes others return success
376: */

378: typedef int MPI_Fint;
379: #define MPI_Comm_f2c(comm) (MPI_Comm)(comm)
380: #define MPI_Comm_c2f(comm) (MPI_Fint)(comm)
381: #define MPI_Type_f2c(type) (MPI_Datatype)(type)
382: #define MPI_Type_c2f(type) (MPI_Fint)(type)
383: #define MPI_Op_f2c(op)     (MPI_Op)(op)
384: #define MPI_Op_c2f(op)     (MPI_Fint)(op)

386: #define MPI_Send(buf,count,datatype,dest,tag,comm)  \
387:      (MPIUNI_ARG(buf),\
388:       MPIUNI_ARG(count),\
389:       MPIUNI_ARG(datatype),\
390:       MPIUNI_ARG(dest),\
391:       MPIUNI_ARG(tag),\
392:       MPIUNI_ARG(comm),\
393:       MPIUni_Abort(MPI_COMM_WORLD,0))
394: #define MPI_Recv(buf,count,datatype,source,tag,comm,status) \
395:      (MPIUNI_ARG(buf),\
396:       MPIUNI_ARG(count),\
397:       MPIUNI_ARG(datatype),\
398:       MPIUNI_ARG(source),\
399:       MPIUNI_ARG(tag),\
400:       MPIUNI_ARG(comm),\
401:       MPIUNI_ARG(status),\
402:       MPIUni_Abort(MPI_COMM_WORLD,0))
403: #define MPI_Get_count(status,datatype,count) \
404:      (MPIUNI_ARG(status),\
405:       MPIUNI_ARG(datatype),\
406:       MPIUNI_ARG(count),\
407:       MPIUni_Abort(MPI_COMM_WORLD,0))
408: #define MPI_Bsend(buf,count,datatype,dest,tag,comm)  \
409:      (MPIUNI_ARG(buf),\
410:       MPIUNI_ARG(count),\
411:       MPIUNI_ARG(datatype),\
412:       MPIUNI_ARG(dest),\
413:       MPIUNI_ARG(tag),\
414:       MPIUNI_ARG(comm),\
415:       MPIUni_Abort(MPI_COMM_WORLD,0))
416: #define MPI_Ssend(buf,count,datatype,dest,tag,comm) \
417:      (MPIUNI_ARG(buf),\
418:       MPIUNI_ARG(count),\
419:       MPIUNI_ARG(datatype),\
420:       MPIUNI_ARG(dest),\
421:       MPIUNI_ARG(tag),\
422:       MPIUNI_ARG(comm),\
423:       MPIUni_Abort(MPI_COMM_WORLD,0))
424: #define MPI_Rsend(buf,count,datatype,dest,tag,comm) \
425:      (MPIUNI_ARG(buf),\
426:       MPIUNI_ARG(count),\
427:       MPIUNI_ARG(datatype),\
428:       MPIUNI_ARG(dest),\
429:       MPIUNI_ARG(tag),\
430:       MPIUNI_ARG(comm),\
431:       MPIUni_Abort(MPI_COMM_WORLD,0))
432: #define MPI_Buffer_attach(buffer,size) \
433:      (MPIUNI_ARG(buffer),\
434:       MPIUNI_ARG(size),\
435:       MPI_SUCCESS)
436: #define MPI_Buffer_detach(buffer,size)\
437:      (MPIUNI_ARG(buffer),\
438:       MPIUNI_ARG(size),\
439:       MPI_SUCCESS)
440: #define MPI_Ibsend(buf,count,datatype,dest,tag,comm,request) \
441:      (MPIUNI_ARG(buf),\
442:       MPIUNI_ARG(count),\
443:       MPIUNI_ARG(datatype),\
444:       MPIUNI_ARG(dest),\
445:       MPIUNI_ARG(tag),\
446:       MPIUNI_ARG(comm),\
447:       MPIUNI_ARG(request),\
448:       MPIUni_Abort(MPI_COMM_WORLD,0))
449: #define MPI_Issend(buf,count,datatype,dest,tag,comm,request) \
450:      (MPIUNI_ARG(buf),\
451:       MPIUNI_ARG(count),\
452:       MPIUNI_ARG(datatype),\
453:       MPIUNI_ARG(dest),\
454:       MPIUNI_ARG(tag),\
455:       MPIUNI_ARG(comm),\
456:       MPIUNI_ARG(request),\
457:       MPIUni_Abort(MPI_COMM_WORLD,0))
458: #define MPI_Irsend(buf,count,datatype,dest,tag,comm,request) \
459:      (MPIUNI_ARG(buf),\
460:       MPIUNI_ARG(count),\
461:       MPIUNI_ARG(datatype),\
462:       MPIUNI_ARG(dest),\
463:       MPIUNI_ARG(tag),\
464:       MPIUNI_ARG(comm),\
465:       MPIUNI_ARG(request),\
466:       MPIUni_Abort(MPI_COMM_WORLD,0))
467: #define MPI_Irecv(buf,count,datatype,source,tag,comm,request) \
468:      (MPIUNI_ARG(buf),\
469:       MPIUNI_ARG(count),\
470:       MPIUNI_ARG(datatype),\
471:       MPIUNI_ARG(source),\
472:       MPIUNI_ARG(tag),\
473:       MPIUNI_ARG(comm),\
474:       MPIUNI_ARG(request),\
475:       MPIUni_Abort(MPI_COMM_WORLD,0))
476: #define MPI_Isend(buf,count,datatype,dest,tag,comm,request) \
477:      (MPIUNI_ARG(buf),\
478:       MPIUNI_ARG(count),\
479:       MPIUNI_ARG(datatype),\
480:       MPIUNI_ARG(dest),\
481:       MPIUNI_ARG(tag),\
482:       MPIUNI_ARG(comm),\
483:       MPIUNI_ARG(request),\
484:       MPIUni_Abort(MPI_COMM_WORLD,0))
485: #define MPI_Wait(request,status) \
486:      (MPIUNI_ARG(request),\
487:       MPIUNI_ARG(status),\
488:       MPI_SUCCESS)
489: #define MPI_Test(request,flag,status) \
490:      (MPIUNI_ARG(request),\
491:       MPIUNI_ARG(status),\
492:       *(flag) = 0,\
493:       MPI_SUCCESS)
494: #define MPI_Request_free(request) \
495:      (MPIUNI_ARG(request),\
496:       MPI_SUCCESS)
497: #define MPI_Waitany(count,array_of_requests,index,status) \
498:      (MPIUNI_ARG(count),\
499:       MPIUNI_ARG(array_of_requests),\
500:       MPIUNI_ARG(status),\
501:       (*(status)).MPI_SOURCE = 0,               \
502:       *(index) = 0,\
503:       MPI_SUCCESS)
504: #define MPI_Testany(a,b,c,d,e) \
505:      (MPIUNI_ARG(a),\
506:       MPIUNI_ARG(b),\
507:       MPIUNI_ARG(c),\
508:       MPIUNI_ARG(d),\
509:       MPIUNI_ARG(e),\
510:       MPI_SUCCESS)
511: #define MPI_Waitall(count,array_of_requests,array_of_statuses) \
512:      (MPIUNI_ARG(count),\
513:       MPIUNI_ARG(array_of_requests),\
514:       MPIUNI_ARG(array_of_statuses),\
515:       MPI_SUCCESS)
516: #define MPI_Testall(count,array_of_requests,flag,array_of_statuses) \
517:      (MPIUNI_ARG(count),\
518:       MPIUNI_ARG(array_of_requests),\
519:       MPIUNI_ARG(flag),\
520:       MPIUNI_ARG(array_of_statuses),\
521:       MPI_SUCCESS)
522: #define MPI_Waitsome(incount,array_of_requests,outcount,\
523:                      array_of_indices,array_of_statuses)        \
524:      (MPIUNI_ARG(incount),\
525:       MPIUNI_ARG(array_of_requests),\
526:       MPIUNI_ARG(outcount),\
527:       MPIUNI_ARG(array_of_indices),\
528:       MPIUNI_ARG(array_of_statuses),\
529:       MPI_SUCCESS)
530: #define MPI_Comm_group(comm,group) \
531:      (MPIUNI_ARG(comm),\
532:       *group = 1,\
533:       MPI_SUCCESS)
534: #define MPI_Group_excl(group,n,ranks,newgroup) \
535:      (MPIUNI_ARG(group),\
536:       MPIUNI_ARG(n),\
537:       MPIUNI_ARG(ranks),\
538:       MPIUNI_ARG(newgroup),\
539:       MPI_SUCCESS)
540: #define MPI_Group_incl(group,n,ranks,newgroup) \
541:      (MPIUNI_ARG(group),\
542:       MPIUNI_ARG(n),\
543:       MPIUNI_ARG(ranks),\
544:       MPIUNI_ARG(newgroup),\
545:       MPI_SUCCESS)
546: #define MPI_Testsome(incount,array_of_requests,outcount,\
547:                      array_of_indices,array_of_statuses) \
548:      (MPIUNI_ARG(incount),\
549:       MPIUNI_ARG(array_of_requests),\
550:       MPIUNI_ARG(outcount),\
551:       MPIUNI_ARG(array_of_indices),\
552:       MPIUNI_ARG(array_of_statuses),\
553:       MPI_SUCCESS)
554: #define MPI_Iprobe(source,tag,comm,flag,status) \
555:      (MPIUNI_ARG(source),\
556:       MPIUNI_ARG(tag),\
557:       MPIUNI_ARG(comm),\
558:       *(flag)=0,\
559:       MPIUNI_ARG(status),\
560:       MPI_SUCCESS)
561: #define MPI_Probe(source,tag,comm,status) \
562:      (MPIUNI_ARG(source),\
563:       MPIUNI_ARG(tag),\
564:       MPIUNI_ARG(comm),\
565:       MPIUNI_ARG(status),\
566:       MPI_SUCCESS)
567: #define MPI_Cancel(request) \
568:      (MPIUNI_ARG(request),\
569:       MPI_SUCCESS)
570: #define MPI_Test_cancelled(status,flag) \
571:      (MPIUNI_ARG(status),\
572:       *(flag)=0,\
573:       MPI_SUCCESS)
574: #define MPI_Send_init(buf,count,datatype,dest,tag,comm,request) \
575:      (MPIUNI_ARG(buf),\
576:       MPIUNI_ARG(count),\
577:       MPIUNI_ARG(datatype),\
578:       MPIUNI_ARG(dest),\
579:       MPIUNI_ARG(tag),\
580:       MPIUNI_ARG(comm),\
581:       MPIUNI_ARG(request),\
582:       MPI_SUCCESS)
583: #define MPI_Bsend_init(buf,count,datatype,dest,tag,comm,request) \
584:      (MPIUNI_ARG(buf),\
585:       MPIUNI_ARG(count),\
586:       MPIUNI_ARG(datatype),\
587:       MPIUNI_ARG(dest),\
588:       MPIUNI_ARG(tag),\
589:       MPIUNI_ARG(comm),\
590:       MPIUNI_ARG(request),\
591:       MPI_SUCCESS)
592: #define MPI_Ssend_init(buf,count,datatype,dest,tag,comm,request) \
593:      (MPIUNI_ARG(buf),\
594:       MPIUNI_ARG(count),\
595:       MPIUNI_ARG(datatype),\
596:       MPIUNI_ARG(dest),\
597:       MPIUNI_ARG(tag),\
598:       MPIUNI_ARG(comm),\
599:       MPIUNI_ARG(request),\
600:       MPI_SUCCESS)
601: #define MPI_Bsend_init(buf,count,datatype,dest,tag,comm,request) \
602:      (MPIUNI_ARG(buf),\
603:       MPIUNI_ARG(count),\
604:       MPIUNI_ARG(datatype),\
605:       MPIUNI_ARG(dest),\
606:       MPIUNI_ARG(tag),\
607:       MPIUNI_ARG(comm),\
608:       MPIUNI_ARG(request),\
609:       MPI_SUCCESS)
610: #define MPI_Rsend_init(buf,count,datatype,dest,tag,comm,request) \
611:      (MPIUNI_ARG(buf),\
612:       MPIUNI_ARG(count),\
613:       MPIUNI_ARG(datatype),\
614:       MPIUNI_ARG(dest),\
615:       MPIUNI_ARG(tag),\
616:       MPIUNI_ARG(comm),\
617:       MPIUNI_ARG(request),\
618:       MPI_SUCCESS)
619: #define MPI_Recv_init(buf,count,datatype,source,tag,comm,request) \
620:      (MPIUNI_ARG(buf),\
621:       MPIUNI_ARG(count),\
622:       MPIUNI_ARG(datatype),\
623:       MPIUNI_ARG(source),\
624:       MPIUNI_ARG(tag),\
625:       MPIUNI_ARG(comm),\
626:       MPIUNI_ARG(request),\
627:       MPI_SUCCESS)
628: #define MPI_Start(request) \
629:      (MPIUNI_ARG(request),\
630:       MPI_SUCCESS)
631: #define MPI_Startall(count,array_of_requests) \
632:      (MPIUNI_ARG(count),\
633:       MPIUNI_ARG(array_of_requests),\
634:       MPI_SUCCESS)
635: #define MPI_Sendrecv(sendbuf,sendcount,sendtype,\
636:                      dest,sendtag,recvbuf,recvcount,\
637:                      recvtype,source,recvtag,\
638:                      comm,status) \
639:      (MPIUNI_ARG(dest),\
640:       MPIUNI_ARG(sendtag),\
641:       MPIUNI_ARG(recvcount),\
642:       MPIUNI_ARG(recvtype),\
643:       MPIUNI_ARG(source),\
644:       MPIUNI_ARG(recvtag),\
645:       MPIUNI_ARG(comm),\
646:       MPIUNI_ARG(status),\
647:       MPIUNI_Memcpy(recvbuf,sendbuf,(sendcount)*MPI_sizeof(sendtype)))
648: #define MPI_Sendrecv_replace(buf,count,datatype,dest,sendtag,\
649:                              source,recvtag,comm,status) \
650:      (MPIUNI_ARG(buf),\
651:       MPIUNI_ARG(count),\
652:       MPIUNI_ARG(datatype),\
653:       MPIUNI_ARG(dest),\
654:       MPIUNI_ARG(sendtag),\
655:       MPIUNI_ARG(source),\
656:       MPIUNI_ARG(recvtag),\
657:       MPIUNI_ARG(comm),\
658:       MPIUNI_ARG(status),\
659:       MPI_SUCCESS)

661: #define MPI_COMBINER_NAMED      0
662: #define MPI_COMBINER_DUP        1
663: #define MPI_COMBINER_CONTIGUOUS 2
664:   /* 32-bit packing scheme: [combiner:4 | type-index:8 | count:12 | base-bytes:8] */
665: #define MPI_Type_dup(oldtype,newtype) \
666:      (*(newtype) = oldtype, MPI_SUCCESS)
667: #define MPI_Type_contiguous(count,oldtype,newtype) \
668:      (*(newtype) = (MPI_COMBINER_CONTIGUOUS<<28)|((oldtype)&0x0ff00000)|(((oldtype)>>8&0xfff)*(count))<<8|((oldtype)&0xff), MPI_SUCCESS)
669: #define MPI_Type_vector(count,blocklength,stride,oldtype,newtype) \
670:      (MPIUNI_ARG(count),\
671:       MPIUNI_ARG(blocklength),\
672:       MPIUNI_ARG(stride),\
673:       MPIUNI_ARG(oldtype),\
674:       MPIUNI_ARG(newtype),\
675:       MPIUni_Abort(MPI_COMM_WORLD,0))
676: #define MPI_Type_hvector(count,blocklength,stride,oldtype,newtype) \
677:      (MPIUNI_ARG(count),\
678:       MPIUNI_ARG(blocklength),\
679:       MPIUNI_ARG(stride),\
680:       MPIUNI_ARG(oldtype),\
681:       MPIUNI_ARG(newtype),\
682:       MPIUni_Abort(MPI_COMM_WORLD,0))
683: #define MPI_Type_indexed(count,array_of_blocklengths,array_of_displacements,oldtype,newtype) \
684:      (MPIUNI_ARG(count),\
685:       MPIUNI_ARG(array_of_blocklengths),\
686:       MPIUNI_ARG(array_of_displacements),\
687:       MPIUNI_ARG(oldtype),\
688:       MPIUNI_ARG(newtype),\
689:       MPIUni_Abort(MPI_COMM_WORLD,0))
690: #define MPI_Type_hindexed(count,array_of_blocklengths,array_of_displacements,oldtype,newtype) \
691:      (MPIUNI_ARG(count),\
692:       MPIUNI_ARG(array_of_blocklengths),\
693:       MPIUNI_ARG(array_of_displacements),\
694:       MPIUNI_ARG(oldtype),\
695:       MPIUNI_ARG(newtype),\
696:       MPIUni_Abort(MPI_COMM_WORLD,0))
697: #define MPI_Type_struct(count,array_of_blocklengths,array_of_displacements,array_of_types,newtype) \
698:      (MPIUNI_ARG(count),\
699:       MPIUNI_ARG(array_of_blocklengths),\
700:       MPIUNI_ARG(array_of_displacements),\
701:       MPIUNI_ARG(array_of_types),\
702:       MPIUNI_ARG(newtype),\
703:       MPIUni_Abort(MPI_COMM_WORLD,0))
704: #define MPI_Address(location,address) \
705:      (*(address) = (MPI_Aint)((char *)(location)), MPI_SUCCESS)
706: #define MPI_Type_size(datatype,size) (*(size) = MPI_sizeof((datatype)), MPI_SUCCESS)
707: #define MPI_Type_lb(datatype,lb) (MPIUNI_ARG(datatype), *(lb) = 0, MPI_SUCCESS)
708: #define MPI_Type_ub(datatype,ub) (*(ub) = MPI_sizeof((datatype)), MPI_SUCCESS)
709: #define MPI_Type_extent(datatype,extent) \
710:      (*(extent) = MPI_sizeof((datatype)), MPI_SUCCESS)
711: #define MPI_Type_get_extent(datatype,lb,extent) \
712:      (*(lb) = 0, *(extent) = MPI_sizeof((datatype)), MPI_SUCCESS)
713: #define MPI_Type_commit(datatype) (MPIUNI_ARG(datatype), MPI_SUCCESS)
714: #define MPI_Type_free(datatype) (*(datatype) = MPI_DATATYPE_NULL, MPI_SUCCESS)
715: #define MPI_Get_elements(status,datatype,count) \
716:      (MPIUNI_ARG(status),\
717:       MPIUNI_ARG(datatype),\
718:       MPIUNI_ARG(count),\
719:       MPIUni_Abort(MPI_COMM_WORLD,0))
720: #define MPI_Pack(inbuf,incount,datatype,outbuf,outsize,position,comm) \
721:      (MPIUNI_ARG(inbuf),\
722:       MPIUNI_ARG(incount),\
723:       MPIUNI_ARG(datatype),\
724:       MPIUNI_ARG(outbuf),\
725:       MPIUNI_ARG(outsize),\
726:       MPIUNI_ARG(position),\
727:       MPIUNI_ARG(comm),\
728:       MPIUni_Abort(MPI_COMM_WORLD,0))
729: #define MPI_Unpack(inbuf,insize,position,outbuf,outcount,datatype,comm) \
730:      (MPIUNI_ARG(inbuf),\
731:       MPIUNI_ARG(insize),\
732:       MPIUNI_ARG(position),\
733:       MPIUNI_ARG(outbuf),\
734:       MPIUNI_ARG(outcount),\
735:       MPIUNI_ARG(datatype),\
736:       MPIUNI_ARG(comm),\
737:       MPIUni_Abort(MPI_COMM_WORLD,0))
738: #define MPI_Pack_size(incount,datatype,comm,size) \
739:      (MPIUNI_ARG(incount),\
740:       MPIUNI_ARG(datatype),\
741:       MPIUNI_ARG(comm),\
742:       MPIUNI_ARG(size),\
743:       MPIUni_Abort(MPI_COMM_WORLD,0))
744: #define MPI_Barrier(comm) \
745:      (MPIUNI_ARG(comm),\
746:       MPI_SUCCESS)
747: #define MPI_Bcast(buffer,count,datatype,root,comm) \
748:      (MPIUNI_ARG(buffer),\
749:       MPIUNI_ARG(count),\
750:       MPIUNI_ARG(datatype),\
751:       MPIUNI_ARG(root),\
752:       MPIUNI_ARG(comm),\
753:       MPI_SUCCESS)
754: #define MPI_Gather(sendbuf,sendcount,sendtype,\
755:                    recvbuf,recvcount, recvtype,\
756:                    root,comm) \
757:      (MPIUNI_ARG(recvcount),\
758:       MPIUNI_ARG(root),\
759:       MPIUNI_ARG(recvtype),\
760:       MPIUNI_ARG(comm),\
761:       MPIUNI_Memcpy(recvbuf,sendbuf,(sendcount)*MPI_sizeof(sendtype)))
762: #define MPI_Gatherv(sendbuf,sendcount,sendtype,\
763:                     recvbuf,recvcounts,displs,\
764:                     recvtype,root,comm) \
765:      (MPIUNI_ARG(recvcounts),\
766:       MPIUNI_ARG(displs),\
767:       MPIUNI_ARG(recvtype),\
768:       MPIUNI_ARG(root),\
769:       MPIUNI_ARG(comm),\
770:       MPIUNI_Memcpy(recvbuf,sendbuf,(sendcount)*MPI_sizeof(sendtype)))
771: #define MPI_Scatter(sendbuf,sendcount,sendtype,\
772:                     recvbuf,recvcount,recvtype,\
773:                     root,comm) \
774:      (MPIUNI_ARG(sendcount),\
775:       MPIUNI_ARG(sendtype),\
776:       MPIUNI_ARG(recvbuf),\
777:       MPIUNI_ARG(recvtype),\
778:       MPIUNI_ARG(root),\
779:       MPIUNI_ARG(comm),\
780:       MPIUNI_Memcpy(recvbuf,sendbuf,(recvcount)*MPI_sizeof(recvtype)))
781: #define MPI_Scatterv(sendbuf,sendcounts,displs,\
782:                      sendtype,recvbuf,recvcount,\
783:                      recvtype,root,comm) \
784:      (MPIUNI_ARG(displs),\
785:       MPIUNI_ARG(sendtype),\
786:       MPIUNI_ARG(sendcounts),\
787:       MPIUNI_ARG(root),\
788:       MPIUNI_ARG(comm),\
789:       MPIUNI_Memcpy(recvbuf,sendbuf,(recvcount)*MPI_sizeof(recvtype)))
790: #define MPI_Allgather(sendbuf,sendcount,sendtype,\
791:                      recvbuf,recvcount,recvtype,comm) \
792:      (MPIUNI_ARG(recvcount),\
793:       MPIUNI_ARG(recvtype),\
794:       MPIUNI_ARG(comm),\
795:       MPIUNI_Memcpy(recvbuf,sendbuf,(sendcount)*MPI_sizeof(sendtype)))
796: #define MPI_Allgatherv(sendbuf,sendcount,sendtype,\
797:      recvbuf,recvcounts,displs,recvtype,comm) \
798:      (MPIUNI_ARG(recvcounts),\
799:       MPIUNI_ARG(displs),\
800:       MPIUNI_ARG(recvtype),\
801:       MPIUNI_ARG(comm),\
802:       MPIUNI_Memcpy(recvbuf,sendbuf,(sendcount)*MPI_sizeof(sendtype)))
803: #define MPI_Alltoall(sendbuf,sendcount,sendtype,\
804:                      recvbuf,recvcount,recvtype,comm) \
805:      (MPIUNI_ARG(recvcount),\
806:       MPIUNI_ARG(recvtype),\
807:       MPIUNI_ARG(comm),\
808:       MPIUNI_Memcpy(recvbuf,sendbuf,(sendcount)*MPI_sizeof(sendtype)))
809: #define MPI_Alltoallv(sendbuf,sendcounts,sdispls,sendtype,\
810:                       recvbuf,recvcounts,rdispls,recvtype,comm) \
811:      (MPIUNI_ARG(sendbuf),\
812:       MPIUNI_ARG(sendcounts),\
813:       MPIUNI_ARG(sdispls),\
814:       MPIUNI_ARG(sendtype),\
815:       MPIUNI_ARG(recvbuf),\
816:       MPIUNI_ARG(recvcounts),\
817:       MPIUNI_ARG(rdispls),\
818:       MPIUNI_ARG(recvtype),\
819:       MPIUNI_ARG(comm),\
820:       MPIUni_Abort(MPI_COMM_WORLD,0))
821: #define MPI_Alltoallw(sendbuf,sendcounts,sdispls,sendtypes,\
822:                       recvbuf,recvcounts,rdispls,recvtypes,comm) \
823:      (MPIUNI_ARG(sendbuf),\
824:       MPIUNI_ARG(sendcounts),\
825:       MPIUNI_ARG(sdispls),\
826:       MPIUNI_ARG(sendtypes),\
827:       MPIUNI_ARG(recvbuf),\
828:       MPIUNI_ARG(recvcount),\
829:       MPIUNI_ARG(rdispls),\
830:       MPIUNI_ARG(recvtypes),\
831:       MPIUNI_ARG(comm),\
832:       MPIUni_Abort(MPI_COMM_WORLD,0))
833: #define MPI_Reduce(sendbuf,recvbuf,count,datatype,op,root,comm) \
834:      (MPIUNI_ARG(op),\
835:       MPIUNI_ARG(root),\
836:       MPIUNI_ARG(comm),\
837:       MPIUNI_Memcpy(recvbuf,sendbuf,(count)*MPI_sizeof(datatype)))
838: #define MPI_Allreduce(sendbuf,recvbuf,count,datatype,op,comm) \
839:      (MPIUNI_ARG(op),\
840:       MPIUNI_ARG(comm),\
841:       MPIUNI_Memcpy(recvbuf,sendbuf,(count)*MPI_sizeof(datatype)))
842: #define MPI_Iallreduce(sendbuf,recvbuf,count,datatype,op,comm,request) \
843:      (MPIUNI_ARG(op),\
844:       MPIUNI_ARG(comm),\
845:       MPIUNI_ARG(request),\
846:       MPIUNI_Memcpy(recvbuf,sendbuf,(count)*MPI_sizeof(datatype)))
847: #define MPI_Scan(sendbuf, recvbuf,count,datatype,op,comm) \
848:      (MPIUNI_ARG(op),\
849:       MPIUNI_ARG(comm),\
850:       MPIUNI_Memcpy(recvbuf,sendbuf,(count)*MPI_sizeof(datatype)))
851: #define MPI_Exscan(sendbuf,recvbuf,count,datatype,op,comm) \
852:      (MPIUNI_ARG(sendbuf),\
853:       MPIUNI_ARG(recvbuf),\
854:       MPIUNI_ARG(count),\
855:       MPIUNI_ARG(datatype),\
856:       MPIUNI_ARG(op),\
857:       MPIUNI_ARG(comm),\
858:       MPI_SUCCESS)
859: #define MPI_Reduce_scatter(sendbuf,recvbuf,recvcounts,datatype,op,comm) \
860:      (MPIUNI_ARG(op),\
861:       MPIUNI_ARG(comm),\
862:       MPIUNI_Memcpy(recvbuf,sendbuf,(*recvcounts)*MPI_sizeof(datatype)))
863: #define MPI_Op_create(function,commute,op) \
864:      (MPIUNI_ARG(function),\
865:       MPIUNI_ARG(commute),\
866:       MPIUNI_ARG(op),\
867:       MPI_SUCCESS)
868: #define MPI_Op_free(op) \
869:      (*(op) = MPI_OP_NULL, MPI_SUCCESS)

871: #define MPI_Group_size(group,size) \
872:   (MPIUNI_ARG(group),\
873:    *(size)=1,\
874:    MPI_SUCCESS)
875: #define MPI_Group_rank(group,rank) \
876:   (MPIUNI_ARG(group),\
877:    *(rank)=0,\
878:    MPI_SUCCESS)
879: #define MPI_Group_translate_ranks(group1,n,ranks1,group2,ranks2) \
880:      (MPIUNI_ARG(group1),\
881:       MPIUNI_ARG(group2),\
882:       MPIUNI_Memcpy((ranks2),(ranks1),(n)*MPI_sizeof(MPI_INT)))
883: #define MPI_Group_compare(group1,group2,result) \
884:     (MPIUNI_ARG(group1),\
885:      MPIUNI_ARG(group2),\
886:      *(result)=1,\
887:      MPI_SUCCESS)
888: #define MPI_Group_union(group1,group2,newgroup) \
889:     (MPIUNI_ARG(group1),\
890:      MPIUNI_ARG(group2),\
891:      *(newgroup)=1,\
892:      MPI_SUCCESS)
893: #define MPI_Group_intersection(group1,group2,newgroup) \
894:     (MPIUNI_ARG(group1),\
895:      MPIUNI_ARG(group2),\
896:      *(newgroup)=1,\
897:      MPI_SUCCESS)
898: #define MPI_Group_difference(group1,group2,newgroup) \
899:     (MPIUNI_ARG(group1),\
900:      MPIUNI_ARG(group2),\
901:      *(newgroup)=MPI_GROUP_EMPTY,\
902:      MPI_SUCCESS)
903: #define MPI_Group_range_incl(group,n,ranges,newgroup) \
904:     (MPIUNI_ARG(group),\
905:      MPIUNI_ARG(n),\
906:      MPIUNI_ARG(ranges),\
907:      *(newgroup)=1,\
908:      MPI_SUCCESS)
909: #define MPI_Group_range_excl(group,n,ranges,newgroup) \
910:     (MPIUNI_ARG(group),\
911:      MPIUNI_ARG(n),\
912:      MPIUNI_ARG(ranges),\
913:      *(newgroup)=MPI_GROUP_EMPTY,\
914:      MPI_SUCCESS)
915: #define MPI_Group_free(group) \
916:      (*(group) = MPI_GROUP_NULL, MPI_SUCCESS)

918: #define MPI_Comm_compare(comm1,comm2,result) \
919:      (MPIUNI_ARG(comm1),\
920:       MPIUNI_ARG(comm2),\
921:       *(result)=MPI_IDENT,\
922:       MPI_SUCCESS)
923: #define MPI_Comm_split(comm,color,key,newcomm) \
924:      (MPIUNI_ARG(color),\
925:       MPIUNI_ARG(key),\
926:       MPI_Comm_dup(comm,newcomm))
927: #define MPI_Comm_split_type(comm,color,key,info,newcomm) \
928:      (MPIUNI_ARG(color),\
929:       MPIUNI_ARG(key),\
930:       MPIUNI_ARG(info),\
931:       MPI_Comm_dup(comm,newcomm))
932: #define MPI_Comm_test_inter(comm,flag) (*(flag)=1, MPI_SUCCESS)
933: #define MPI_Comm_remote_size(comm,size) (*(size)=1 ,MPI_SUCCESS)
934: #define MPI_Comm_remote_group(comm,group) MPI_SUCCESS
935: #define MPI_Intercomm_create(local_comm,local_leader,peer_comm,\
936:      remote_leader,tag,newintercomm) MPI_SUCCESS
937: #define MPI_Intercomm_merge(intercomm,high,newintracomm) MPI_SUCCESS
938: #define MPI_Topo_test(comm,flag) MPI_SUCCESS
939: #define MPI_Cart_create(comm_old,ndims,dims,periods,\
940:      reorder,comm_cart) MPIUni_Abort(MPI_COMM_WORLD,0)
941: #define MPI_Dims_create(nnodes,ndims,dims) MPIUni_Abort(MPI_COMM_WORLD,0)
942: #define MPI_Graph_create(comm,a,b,c,d,e) MPIUni_Abort(MPI_COMM_WORLD,0)
943: #define MPI_Graphdims_Get(comm,nnodes,nedges) MPIUni_Abort(MPI_COMM_WORLD,0)
944: #define MPI_Graph_get(comm,a,b,c,d) MPIUni_Abort(MPI_COMM_WORLD,0)
945: #define MPI_Cartdim_get(comm,ndims) MPIUni_Abort(MPI_COMM_WORLD,0)
946: #define MPI_Cart_get(comm,maxdims,dims,periods,coords) \
947:      MPIUni_Abort(MPI_COMM_WORLD,0)
948: #define MPI_Cart_rank(comm,coords,rank) MPIUni_Abort(MPI_COMM_WORLD,0)
949: #define MPI_Cart_coords(comm,rank,maxdims,coords) \
950:      MPIUni_Abort(MPI_COMM_WORLD,0)
951: #define MPI_Graph_neighbors_count(comm,rank,nneighbors) \
952:      MPIUni_Abort(MPI_COMM_WORLD,0)
953: #define MPI_Graph_neighbors(comm,rank,maxneighbors,neighbors) \
954:      MPIUni_Abort(MPI_COMM_WORLD,0)
955: #define MPI_Cart_shift(comm,direction,disp,rank_source,rank_dest) \
956:      MPIUni_Abort(MPI_COMM_WORLD,0)
957: #define MPI_Cart_sub(comm,remain_dims,newcomm) MPIUni_Abort(MPI_COMM_WORLD,0)
958: #define MPI_Cart_map(comm,ndims,dims,periods,newrank) MPIUni_Abort(MPI_COMM_WORLD,0)
959: #define MPI_Graph_map(comm,a,b,c,d) MPIUni_Abort(MPI_COMM_WORLD,0)

961: #define MPI_Get_processor_name(name,result_len)                         \
962:      (*(result_len) = 9,MPIUNI_Memcpy(name,"localhost",10*MPI_sizeof(MPI_CHAR)))
963: #define MPI_Errhandler_create(function,errhandler) \
964:      (MPIUNI_ARG(function),\
965:       *(errhandler) = MPI_ERRORS_RETURN,\
966:       MPI_SUCCESS)
967: #define MPI_Errhandler_set(comm,errhandler) \
968:      (MPIUNI_ARG(comm),\
969:       MPIUNI_ARG(errhandler),\
970:       MPI_SUCCESS)
971: #define MPI_Errhandler_get(comm,errhandler) \
972:      (MPIUNI_ARG(comm),\
973:       (*errhandler) = MPI_ERRORS_RETURN,\
974:       MPI_SUCCESS)
975: #define MPI_Errhandler_free(errhandler) \
976:      (*(errhandler) = MPI_ERRHANDLER_NULL,\
977:       MPI_SUCCESS)
978: #define MPI_Error_string(errorcode,string,result_len) \
979:      (MPIUNI_ARG(errorcode),\
980:      (errorcode == MPI_ERR_NOSUPPORT) ? \
981:        (*(result_len) = 35, MPIUNI_Memcpy(string,"MPI error, not supported by MPI-uni",35*MPI_sizeof(MPI_CHAR))) : \
982:       (*(result_len) = 9, MPIUNI_Memcpy(string,"MPI error",9*MPI_sizeof(MPI_CHAR))))
983: #define MPI_Error_class(errorcode,errorclass) \
984:      (*(errorclass) = errorcode, MPI_SUCCESS)
985: #define MPI_Wtick() 1.0
986: #define MPI_Pcontrol(level) MPI_SUCCESS

988: /* MPI-IO additions */

990: typedef int MPI_File;
991: #define MPI_FILE_NULL 0

993: typedef int MPI_Offset;

995: #define MPI_MODE_RDONLY  0
996: #define MPI_MODE_WRONLY  0
997: #define MPI_MODE_CREATE  0

999: #define MPI_File_open(comm,filename,amode,info,mpi_fh) \
1000:   (MPIUNI_ARG(comm),\
1001:    MPIUNI_ARG(filename),\
1002:    MPIUNI_ARG(amode),\
1003:    MPIUNI_ARG(info),\
1004:    MPIUNI_ARG(mpi_fh),\
1005:    MPIUni_Abort(MPI_COMM_WORLD,0))

1007: #define MPI_File_close(mpi_fh) \
1008:   (MPIUNI_ARG(mpi_fh),\
1009:    MPIUni_Abort(MPI_COMM_WORLD,0))

1011: #define MPI_File_set_view(mpi_fh,disp,etype,filetype,datarep,info) \
1012:   (MPIUNI_ARG(mpi_fh),\
1013:    MPIUNI_ARG(disp),\
1014:    MPIUNI_ARG(etype),\
1015:    MPIUNI_ARG(filetype),\
1016:    MPIUNI_ARG(datarep),\
1017:    MPIUNI_ARG(info),\
1018:    MPIUni_Abort(MPI_COMM_WORLD,0))

1020: #define MPI_File_write_all(mpi_fh,buf,count,datatype,status) \
1021:   (MPIUNI_ARG(mpi_fh),\
1022:    MPIUNI_ARG(buf),\
1023:    MPIUNI_ARG(count),\
1024:    MPIUNI_ARG(datatype),\
1025:    MPIUNI_ARG(status),\
1026:    MPIUni_Abort(MPI_COMM_WORLD,0))

1028: #define MPI_File_read_all(mpi_fh,buf,count,datatype,status) \
1029:   (MPIUNI_ARG(mpi_fh),\
1030:    MPIUNI_ARG(buf),\
1031:    MPIUNI_ARG(count),\
1032:    MPIUNI_ARG(datatype),\
1033:    MPIUNI_ARG(status),\
1034:    MPIUni_Abort(MPI_COMM_WORLD,0))

1036: #define MPI_File_write_at(mpi_fh,off,buf,count,datatype,status) \
1037:   (MPIUNI_ARG(mpi_fh),\
1038:    MPIUNI_ARG(off),\
1039:    MPIUNI_ARG(buf),\
1040:    MPIUNI_ARG(count),\
1041:    MPIUNI_ARG(datatype),\
1042:    MPIUNI_ARG(status),\
1043:    MPIUni_Abort(MPI_COMM_WORLD,0))

1045: #define MPI_File_read_at(mpi_fh,off,buf,count,datatype,status) \
1046:   (MPIUNI_ARG(mpi_fh),\
1047:    MPIUNI_ARG(off),\
1048:    MPIUNI_ARG(buf),\
1049:    MPIUNI_ARG(count),\
1050:    MPIUNI_ARG(datatype),\
1051:    MPIUNI_ARG(status),\
1052:    MPIUni_Abort(MPI_COMM_WORLD,0))

1054: #define MPI_File_write_at_all(mpi_fh,off,buf,count,datatype,status) \
1055:   (MPIUNI_ARG(mpi_fh),\
1056:    MPIUNI_ARG(off),\
1057:    MPIUNI_ARG(buf),\
1058:    MPIUNI_ARG(count),\
1059:    MPIUNI_ARG(datatype),\
1060:    MPIUNI_ARG(status),\
1061:    MPIUni_Abort(MPI_COMM_WORLD,0))

1063: #define MPI_File_read_at_all(mpi_fh,off,buf,count,datatype,status) \
1064:   (MPIUNI_ARG(mpi_fh),\
1065:    MPIUNI_ARG(off),\
1066:    MPIUNI_ARG(buf),\
1067:    MPIUNI_ARG(count),\
1068:    MPIUNI_ARG(datatype),\
1069:    MPIUNI_ARG(status),\
1070:    MPIUni_Abort(MPI_COMM_WORLD,0))

1072:   /* called from PetscInitialize() - so return success */
1073: #define MPI_Register_datarep(name,read_conv_fn,write_conv_fn,extent_fn,state) \
1074:   (MPIUNI_ARG(name),\
1075:    MPIUNI_ARG(read_conv_fn),\
1076:    MPIUNI_ARG(write_conv_fn),\
1077:    MPIUNI_ARG(extent_fn),\
1078:    MPIUNI_ARG(state),\
1079:    MPI_SUCCESS)

1081: #define MPI_Type_create_subarray(ndims,array_of_sizes,array_of_subsizes,array_of_starts,order,oldtype,newtype) \
1082:   (MPIUNI_ARG(ndims),\
1083:    MPIUNI_ARG(array_of_sizes),\
1084:    MPIUNI_ARG(array_of_subsizes),\
1085:    MPIUNI_ARG(array_of_starts),\
1086:    MPIUNI_ARG(order),\
1087:    MPIUNI_ARG(oldtype),\
1088:    MPIUNI_ARG(newtype),\
1089:    MPIUni_Abort(MPI_COMM_WORLD,0))

1091: #define MPI_Type_create_resized(oldtype,lb,extent,newtype) \
1092:   (MPIUNI_ARG(oldtype),\
1093:    MPIUNI_ARG(lb),\
1094:    MPIUNI_ARG(extent),\
1095:    MPIUNI_ARG(newtype),\
1096:    MPIUni_Abort(MPI_COMM_WORLD,0))

1098: #define MPI_Type_create_indexed_block(count,blocklength,array_of_displacements,oldtype,newtype) \
1099:   (MPIUNI_ARG(count),\
1100:    MPIUNI_ARG(blocklength),\
1101:    MPIUNI_ARG(array_of_displacements),\
1102:    MPIUNI_ARG(oldtype),\
1103:    MPIUNI_ARG(newtype),\
1104:    MPIUni_Abort(MPI_COMM_WORLD,0))

1106: #if defined(__cplusplus)
1107: }
1108: #endif
1109: #endif