Actual source code: zmat.c

  1: /*$Id: zmat.c,v 1.100 2001/08/07 03:05:11 balay Exp $*/

 3:  #include src/mat/impls/adj/mpi/mpiadj.h
 4:  #include src/fortran/custom/zpetsc.h
 5:  #include petscmat.h

  7: #ifdef PETSC_HAVE_FORTRAN_CAPS
  8: #define matsettype_                      MATSETTYPE
  9: #define matmpiaijgetseqaij_              MATMPIAIJGETSEQAIJ
 10: #define matmpibaijgetseqbaij_            MATMPIBAIJGETSEQBAIJ
 11: #define matgetrowij_                     MATGETROWIJ
 12: #define matrestorerowij_                 MATRESTOREROWIJ
 13: #define matsetfromoptions_               MATSETFROMOPTIONS
 14: #define matcreateseqaijwitharrays_       MATCREATESEQAIJWITHARRAYS
 15: #define matpartitioningdestroy_          MATPARTITIONINGDESTROY
 16: #define matsetvalue_                     MATSETVALUE
 17: #define matsetvaluelocal_                MATSETVALUELOCAL
 18: #define matgetrow_                       MATGETROW
 19: #define matrestorerow_                   MATRESTOREROW
 20: #define matgetordering_                  MATGETORDERING
 21: #define matdestroy_                      MATDESTROY
 22: #define matcreatempiaij_                 MATCREATEMPIAIJ
 23: #define matcreateseqaij_                 MATCREATESEQAIJ
 24: #define matcreatempibaij_                MATCREATEMPIBAIJ
 25: #define matcreateseqbaij_                MATCREATESEQBAIJ
 26: #define matcreate_                       MATCREATE
 27: #define matcreateshell_                  MATCREATESHELL
 28: #define matorderingregisterdestroy_      MATORDERINGREGISTERDESTROY
 29: #define matcreatempirowbs_               MATCREATEMPIROWBS
 30: #define matcreateseqbdiag_               MATCREATESEQBDIAG
 31: #define matcreatempibdiag_               MATCREATEMPIBDIAG
 32: #define matcreateseqdense_               MATCREATESEQDENSE
 33: #define matcreatempidense_               MATCREATEMPIDENSE
 34: #define matconvert_                      MATCONVERT
 35: #define matload_                         MATLOAD
 36: #define mattranspose_                    MATTRANSPOSE
 37: #define matgetarray_                     MATGETARRAY
 38: #define matrestorearray_                 MATRESTOREARRAY
 39: #define matgettype_                      MATGETTYPE
 40: #define matgetinfo_                      MATGETINFO
 41: #define matshellsetoperation_            MATSHELLSETOPERATION
 42: #define matview_                         MATVIEW
 43: #define matfdcoloringcreate_             MATFDCOLORINGCREATE
 44: #define matfdcoloringdestroy_            MATFDCOLORINGDESTROY
 45: #define matfdcoloringsetfunctionsnes_    MATFDCOLORINGSETFUNCTIONSNES
 46: #define matfdcoloringsetfunctionts_      MATFDCOLORINGSETFUNCTIONTS
 47: #define matcopy_                         MATCOPY
 48: #define matgetsubmatrices_               MATGETSUBMATRICES
 49: #define matgetcoloring_                  MATGETCOLORING
 50: #define matpartitioningsettype_          MATPARTITIONINGSETTYPE
 51: #define matduplicate_                    MATDUPLICATE
 52: #define matzerorows_                     MATZEROROWS
 53: #define matzerorowslocal_                MATZEROROWSLOCAL
 54: #define matpartitioningview_             MATPARTITIONINGVIEW
 55: #define matpartitioningcreate_           MATPARTITIONINGCREATE
 56: #define matpartitioningsetadjacency_     MATPARTITIONINGSETADJACENCY
 57: #define matpartitioningapply_            MATPARTITIONINGAPPLY
 58: #define matcreatempiadj_                 MATCREATEMPIADJ
 59: #define matsetvaluesstencil_             MATSETVALUESSTENCIL
 60: #elif !defined(PETSC_HAVE_FORTRAN_UNDERSCORE)
 61: #define matsettype_                      matsettype
 62: #define matmpiaijgetseqaij_              matmpiaijgetseqaij
 63: #define matmpibaijgetseqbaij_            matmpibaijgetseqbaij          
 64: #define matrestorerowij_                 matrestorerowij
 65: #define matgetrowij_                     matgetrowij
 66: #define matcreateseqaijwitharrays_       matcreateseqaijwitharrays
 67: #define matpartitioningdestroy_          matpartitioningdestroy
 68: #define matpartitioningsettype_          matpartitioningsettype
 69: #define matsetvalue_                     matsetvalue
 70: #define matsetvaluelocal_                matsetvaluelocal
 71: #define matgetrow_                       matgetrow
 72: #define matrestorerow_                   matrestorerow
 73: #define matview_                         matview
 74: #define matgetinfo_                      matgetinfo
 75: #define matgettype_                      matgettype
 76: #define matdestroy_                      matdestroy
 77: #define matcreatempiaij_                 matcreatempiaij
 78: #define matcreateseqaij_                 matcreateseqaij
 79: #define matcreatempibaij_                matcreatempibaij
 80: #define matcreateseqbaij_                matcreateseqbaij
 81: #define matcreate_                       matcreate
 82: #define matcreateshell_                  matcreateshell
 83: #define matorderingregisterdestroy_      matorderingregisterdestroy
 84: #define matgetordering_                  matgetordering
 85: #define matcreatempirowbs_               matcreatempirowbs
 86: #define matcreateseqbdiag_               matcreateseqbdiag
 87: #define matcreatempibdiag_               matcreatempibdiag
 88: #define matcreateseqdense_               matcreateseqdense
 89: #define matcreatempidense_               matcreatempidense
 90: #define matconvert_                      matconvert
 91: #define matload_                         matload
 92: #define mattranspose_                    mattranspose
 93: #define matgetarray_                     matgetarray
 94: #define matrestorearray_                 matrestorearray
 95: #define matshellsetoperation_            matshellsetoperation
 96: #define matfdcoloringcreate_             matfdcoloringcreate
 97: #define matfdcoloringdestroy_            matfdcoloringdestroy
 98: #define matfdcoloringsetfunctionsnes_    matfdcoloringsetfunctionsnes
 99: #define matfdcoloringsetfunctionts_      matfdcoloringsetfunctionts
100: #define matcopy_                         matcopy
101: #define matgetsubmatrices_               matgetsubmatrices
102: #define matgetcoloring_                  matgetcoloring
103: #define matduplicate_                    matduplicate
104: #define matzerorows_                     matzerorows
105: #define matzerorowslocal_                matzerorowslocal
106: #define matpartitioningview_             matpartitioningview
107: #define matpartitioningcreate_           matpartitioningcreate
108: #define matpartitioningsetadjacency_     matpartitioningsetadjacency
109: #define matpartitioningapply_            matpartitioningapply            
110: #define matcreatempiadj_                 matcreatempiadj
111: #define matsetfromoptions_               matsetfromoptions
112: #define matsetvaluesstencil_             matsetvaluesstencil
113: #endif

115: EXTERN_C_BEGIN

117: void PETSC_STDCALL matsettype_(Mat *x,CHAR type_name PETSC_MIXED_LEN(len),int *ierr PETSC_END_LEN(len))
118: {
119:   char *t;

121:   FIXCHAR(type_name,len,t);
122:   *MatSetType(*x,t);
123:   FREECHAR(type_name,t);
124: }

126: void PETSC_STDCALL matsetvaluesstencil_(Mat *mat,int *m,MatStencil *idxm,int *n,MatStencil *idxn,PetscScalar *v,InsertMode *addv,
127:                                         int *ierr)
128: {
129:   *MatSetValuesStencil(*mat,*m,idxm,*n,idxn,v,*addv);
130: }

132: void PETSC_STDCALL matmpiaijgetseqaij_(Mat *A,Mat *Ad,Mat *Ao,int *ic,long *iic,int *ierr)
133: {
134:   int *i;
135:   *MatMPIAIJGetSeqAIJ(*A,Ad,Ao,&i);if (*ierr) return;
136:   *iic  = PetscIntAddressToFortran(ic,i);
137: }

139: void PETSC_STDCALL matmpibaijgetseqbaij_(Mat *A,Mat *Ad,Mat *Ao,int *ic,long *iic,int *ierr)
140: {
141:   int *i;
142:   *MatMPIBAIJGetSeqBAIJ(*A,Ad,Ao,&i);if (*ierr) return;
143:   *iic  = PetscIntAddressToFortran(ic,i);
144: }

146: void PETSC_STDCALL matgetrowij_(Mat *B,int *shift,PetscTruth *sym,int *n,int *ia,long *iia,int *ja,long *jja,
147:                                 PetscTruth *done,int *ierr)
148: {
149:   int *IA,*JA;
150:   *MatGetRowIJ(*B,*shift,*sym,n,&IA,&JA,done);if (*ierr) return;
151:   *iia  = PetscIntAddressToFortran(ia,IA);
152:   *jja  = PetscIntAddressToFortran(ja,JA);
153: }

155: void PETSC_STDCALL matrestorerowij_(Mat *B,int *shift,PetscTruth *sym,int *n,int *ia,long *iia,int *ja,long *jja,
156:                                     PetscTruth *done,int *ierr)
157: {
158:   int *IA = PetscIntAddressFromFortran(ia,*iia),*JA = PetscIntAddressFromFortran(ja,*jja);
159:   *MatRestoreRowIJ(*B,*shift,*sym,n,&IA,&JA,done);
160: }

162: void PETSC_STDCALL matsetfromoptions_(Mat *B,int *ierr)
163: {
164:   *MatSetFromOptions(*B);
165: }

167: void PETSC_STDCALL matcreateseqaijwitharrays_(MPI_Comm *comm,int *m,int *n,int *i,int *j,PetscScalar *a,Mat *mat,int *ierr)
168: {
169:   *MatCreateSeqAIJWithArrays((MPI_Comm)PetscToPointerComm(*comm),*m,*n,i,j,a,mat);
170: }

172: void PETSC_STDCALL matcreatempiadj_(MPI_Comm *comm,int *m,int *n,int *i,int *j,int *values,Mat *A,int *ierr)
173: {
174:   Mat_MPIAdj *adj;

176:   CHKFORTRANNULLINTEGER(values);
177:   *MatCreateMPIAdj((MPI_Comm)PetscToPointerComm(*comm),*m,*n,i,j,values,A);
178:   adj = (Mat_MPIAdj*)(*A)->data;
179:   adj->freeaij = PETSC_FALSE;
180: }

182: void PETSC_STDCALL matpartitioningdestroy_(MatPartitioning *part,int *ierr)
183: {
184:   *MatPartitioningDestroy(*part);
185: }

187: void PETSC_STDCALL matpartitioningcreate_(MPI_Comm *comm,MatPartitioning *part, int *ierr)
188: {
189:   *MatPartitioningCreate((MPI_Comm)PetscToPointerComm(*comm),part);
190: }

192: void PETSC_STDCALL matpartitioningapply_(MatPartitioning *part,IS *is,int *ierr)
193: {
194:   *MatPartitioningApply(*part,is);
195: }

197: void PETSC_STDCALL matpartitioningsetadjacency_(MatPartitioning *part,Mat *mat,int *ierr)
198: {
199:   *MatPartitioningSetAdjacency(*part,*mat);
200: }

202: void PETSC_STDCALL matpartitioningview_(MatPartitioning  *part,PetscViewer *viewer, int *ierr)
203: {
204:   PetscViewer v;
205:   PetscPatchDefaultViewers_Fortran(viewer,v);
206:   *MatPartitioningView(*part,v);
207: }

209: void PETSC_STDCALL matpartitioningsettype_(MatPartitioning *part,CHAR type PETSC_MIXED_LEN(len),
210:                                            int *ierr PETSC_END_LEN(len))
211: {
212:   char *t;
213:   FIXCHAR(type,len,t);
214:   *MatPartitioningSetType(*part,t);
215:   FREECHAR(type,t);
216: }

218: void PETSC_STDCALL matgetcoloring_(Mat *mat,CHAR type PETSC_MIXED_LEN(len),ISColoring *iscoloring,
219:                                    int *ierr PETSC_END_LEN(len))
220: {
221:   char *t;
222:   FIXCHAR(type,len,t);
223:   *MatGetColoring(*mat,t,iscoloring);
224:   FREECHAR(type,t);
225: }

227: void PETSC_STDCALL matsetvalue_(Mat *mat,int *i,int *j,PetscScalar *va,InsertMode *mode,int *ierr)
228: {
229:   /* cannot use MatSetValue() here since that usesCHKERRQ() which has a return in it */
230:   *MatSetValues(*mat,1,i,1,j,va,*mode);
231: }

233: void PETSC_STDCALL matsetvaluelocal_(Mat *mat,int *i,int *j,PetscScalar *va,InsertMode *mode,int *ierr)
234: {
235:   /* cannot use MatSetValueLocal() here since that usesCHKERRQ() which has a return in it */
236:   *MatSetValuesLocal(*mat,1,i,1,j,va,*mode);
237: }

239: void PETSC_STDCALL matfdcoloringcreate_(Mat *mat,ISColoring *iscoloring,MatFDColoring *color,int *ierr)
240: {
241:   *MatFDColoringCreate(*mat,*iscoloring,color);
242: }

244: /*
245:    This is a poor way of storing the column and value pointers 
246:   generated by MatGetRow() to be returned with MatRestoreRow()
247:   but there is not natural,good place else to store them. Hence
248:   Fortran programmers can only have one outstanding MatGetRows()
249:   at a time.
250: */
251: static int    matgetrowactive = 0,*my_ocols = 0;
252: static PetscScalar *my_ovals = 0;

254: void PETSC_STDCALL matgetrow_(Mat *mat,int *row,int *ncols,int *cols,PetscScalar *vals,int *ierr)
255: {
256:   int    **oocols = &my_ocols;
257:   PetscScalar **oovals = &my_ovals;

259:   if (matgetrowactive) {
260:      PetscError(__LINE__,"MatGetRow_Fortran",__FILE__,__SDIR__,1,0,
261:                "Cannot have two MatGetRow() active simultaneouslyn
262:                call MatRestoreRow() before calling MatGetRow() a second time");
263:      *1;
264:      return;
265:   }

267:   CHKFORTRANNULLINTEGER(cols);
268:   CHKFORTRANNULLSCALAR(vals);

270:   *MatGetRow(*mat,*row,ncols,oocols,oovals);
271:   if (*ierr) return;

273:   if (oocols) { *PetscMemcpy(cols,my_ocols,(*ncols)*sizeof(int)); if (*ierr) return;}
274:   if (oovals) { *PetscMemcpy(vals,my_ovals,(*ncols)*sizeof(PetscScalar)); if (*ierr) return; }
275:   matgetrowactive = 1;
276: }

278: void PETSC_STDCALL matrestorerow_(Mat *mat,int *row,int *ncols,int *cols,PetscScalar *vals,int *ierr)
279: {
280:   int    **oocols = &my_ocols;
281:   PetscScalar **oovals = &my_ovals;
282:   if (!matgetrowactive) {
283:      PetscError(__LINE__,"MatRestoreRow_Fortran",__FILE__,__SDIR__,1,0,
284:                "Must call MatGetRow() first");
285:      *1;
286:      return;
287:   }
288:   CHKFORTRANNULLINTEGER(cols);
289:   CHKFORTRANNULLSCALAR(vals);
290:   *MatRestoreRow(*mat,*row,ncols,oocols,oovals);
291:   matgetrowactive = 0;
292: }

294: void PETSC_STDCALL matview_(Mat *mat,PetscViewer *vin,int *ierr)
295: {
296:   PetscViewer v;
297:   PetscPatchDefaultViewers_Fortran(vin,v);
298:   *MatView(*mat,v);
299: }

301: void PETSC_STDCALL matcopy_(Mat *A,Mat *B,MatStructure *str,int *ierr)
302: {
303:   *MatCopy(*A,*B,*str);
304: }

306: void PETSC_STDCALL matgetinfo_(Mat *mat,MatInfoType *flag,double *finfo,int *ierr)
307: {
308:   *MatGetInfo(*mat,*flag,(MatInfo*)finfo);
309: }

311: void PETSC_STDCALL matgetarray_(Mat *mat,PetscScalar *fa,long *ia,int *ierr)
312: {
313:   PetscScalar *mm;
314:   int    m,n;

316:   *MatGetArray(*mat,&mm); if (*ierr) return;
317:   *MatGetSize(*mat,&m,&n);  if (*ierr) return;
318:   *PetscScalarAddressToFortran((PetscObject)*mat,fa,mm,m*n,ia); if (*ierr) return;
319: }

321: void PETSC_STDCALL matrestorearray_(Mat *mat,PetscScalar *fa,long *ia,int *ierr)
322: {
323:   PetscScalar          *lx;
324:   int                  m,n;

326:   *MatGetSize(*mat,&m,&n); if (*ierr) return;
327:   *PetscScalarAddressFromFortran((PetscObject)*mat,fa,*ia,m*n,&lx);if (*ierr) return;
328:   *MatRestoreArray(*mat,&lx);if (*ierr) return;
329: }

331: void PETSC_STDCALL mattranspose_(Mat *mat,Mat *B,int *ierr)
332: {
333:   CHKFORTRANNULLINTEGER(B);
334:   *MatTranspose(*mat,B);
335: }

337: void PETSC_STDCALL matload_(PetscViewer *viewer,CHAR outtype PETSC_MIXED_LEN(len),Mat *newmat,int *ierr PETSC_END_LEN(len))
338: {
339:   char *t;
340:   PetscViewer v;
341:   FIXCHAR(outtype,len,t);
342:   PetscPatchDefaultViewers_Fortran(viewer,v);
343:   *MatLoad(v,t,newmat);
344:   FREECHAR(outtype,t);
345: }

347: void PETSC_STDCALL matconvert_(Mat *mat,CHAR outtype PETSC_MIXED_LEN(len),Mat *M,int *ierr PETSC_END_LEN(len))
348: {
349:   char *t;
350:   FIXCHAR(outtype,len,t);
351:   *MatConvert(*mat,t,M);
352:   FREECHAR(outtype,t);
353: }

355: void PETSC_STDCALL matcreateseqdense_(MPI_Comm *comm,int *m,int *n,PetscScalar *data,Mat *newmat,int *ierr)
356: {
357:   CHKFORTRANNULLSCALAR(data);
358:   *MatCreateSeqDense((MPI_Comm)PetscToPointerComm(*comm),*m,*n,data,newmat);
359: }

361: void PETSC_STDCALL matcreatempidense_(MPI_Comm *comm,int *m,int *n,int *M,int *N,PetscScalar *data,Mat *newmat,
362:                         int *ierr)
363: {
364:   CHKFORTRANNULLSCALAR(data);
365:   *MatCreateMPIDense((MPI_Comm)PetscToPointerComm(*comm),*m,*n,*M,*N,data,newmat);
366: }

368: /* Fortran ignores diagv */
369: void PETSC_STDCALL matcreatempibdiag_(MPI_Comm *comm,int *m,int *M,int *N,int *nd,int *bs,
370:                         int *diag,PetscScalar **diagv,Mat *newmat,int *ierr)
371: {
372:   *MatCreateMPIBDiag((MPI_Comm)PetscToPointerComm(*comm),
373:                               *m,*M,*N,*nd,*bs,diag,PETSC_NULL,newmat);
374: }

376: /* Fortran ignores diagv */
377: void PETSC_STDCALL matcreateseqbdiag_(MPI_Comm *comm,int *m,int *n,int *nd,int *bs,
378:                         int *diag,PetscScalar **diagv,Mat *newmat,int *ierr)
379: {
380:   *MatCreateSeqBDiag((MPI_Comm)PetscToPointerComm(*comm),*m,*n,*nd,*bs,diag,
381:                                PETSC_NULL,newmat);
382: }

384: #if defined(PETSC_HAVE_BLOCKSOLVE) && !defined(PETSC_USE_COMPLEX) && !defined(PETSC_USE_SINGLE)
385: /*  Fortran cannot pass in procinfo,hence ignored */
386: void PETSC_STDCALL matcreatempirowbs_(MPI_Comm *comm,int *m,int *M,int *nz,int *nnz,Mat *newmat,int *ierr)
387: {
388:   CHKFORTRANNULLINTEGER(nnz);
389:   *MatCreateMPIRowbs((MPI_Comm)PetscToPointerComm(*comm),*m,*M,*nz,nnz,newmat);
390: }
391: #endif

393: void PETSC_STDCALL matgetordering_(Mat *mat,CHAR type PETSC_MIXED_LEN(len),IS *rperm,IS *cperm,
394:                        int *ierr PETSC_END_LEN(len))
395: {
396:   char *t;
397:   FIXCHAR(type,len,t);
398:   *MatGetOrdering(*mat,t,rperm,cperm);
399:   FREECHAR(type,t);
400: }

402: void PETSC_STDCALL matorderingregisterdestroy_(int *ierr)
403: {
404:   *MatOrderingRegisterDestroy();
405: }

407: void PETSC_STDCALL matgettype_(Mat *mm,CHAR name PETSC_MIXED_LEN(len),int *ierr PETSC_END_LEN(len))
408: {
409:   char *tname;

411:   *MatGetType(*mm,&tname);
412: #if defined(PETSC_USES_CPTOFCD)
413:   {
414:     char *t = _fcdtocp(name); int len1 = _fcdlen(name);
415:     if (t != PETSC_NULL_CHARACTER_Fortran) {
416:       *PetscStrncpy(t,tname,len1);if (*ierr) return;
417:     }
418:   }
419: #else
420:   if (name != PETSC_NULL_CHARACTER_Fortran) {
421:     *PetscStrncpy(name,tname,len);if (*ierr) return;
422:   }
423: #endif
424: }

426: void PETSC_STDCALL matcreate_(MPI_Comm *comm,int *m,int *n,int *M,int *N,Mat *V,int *ierr)
427: {
428:   *MatCreate((MPI_Comm)PetscToPointerComm(*comm),*m,*n,*M,*N,V);
429: }

431: void PETSC_STDCALL matcreateseqaij_(MPI_Comm *comm,int *m,int *n,int *nz,
432:                            int *nnz,Mat *newmat,int *ierr)
433: {
434:   CHKFORTRANNULLINTEGER(nnz);
435:   *MatCreateSeqAIJ((MPI_Comm)PetscToPointerComm(*comm),*m,*n,*nz,nnz,newmat);
436: }

438: void PETSC_STDCALL matcreateseqbaij_(MPI_Comm *comm,int *bs,int *m,int *n,int *nz,
439:                            int *nnz,Mat *newmat,int *ierr)
440: {
441:   CHKFORTRANNULLINTEGER(nnz);
442:   *MatCreateSeqBAIJ((MPI_Comm)PetscToPointerComm(*comm),*bs,*m,*n,*nz,nnz,newmat);
443: }

445: void PETSC_STDCALL matfdcoloringdestroy_(MatFDColoring *mat,int *ierr)
446: {
447:   *MatFDColoringDestroy(*mat);
448: }

450: void PETSC_STDCALL matdestroy_(Mat *mat,int *ierr)
451: {
452:   *MatDestroy(*mat);
453: }

455: void PETSC_STDCALL matcreatempiaij_(MPI_Comm *comm,int *m,int *n,int *M,int *N,
456:          int *d_nz,int *d_nnz,int *o_nz,int *o_nnz,Mat *newmat,int *ierr)
457: {
458:   CHKFORTRANNULLINTEGER(d_nnz);
459:   CHKFORTRANNULLINTEGER(o_nnz);

461:   *MatCreateMPIAIJ((MPI_Comm)PetscToPointerComm(*comm),
462:                              *m,*n,*M,*N,*d_nz,d_nnz,*o_nz,o_nnz,newmat);
463: }
464: void PETSC_STDCALL matcreatempibaij_(MPI_Comm *comm,int *bs,int *m,int *n,int *M,int *N,
465:          int *d_nz,int *d_nnz,int *o_nz,int *o_nnz,Mat *newmat,int *ierr)
466: {
467:   CHKFORTRANNULLINTEGER(d_nnz);
468:   CHKFORTRANNULLINTEGER(o_nnz);
469:   *MatCreateMPIBAIJ((MPI_Comm)PetscToPointerComm(*comm),
470:                              *bs,*m,*n,*M,*N,*d_nz,d_nnz,*o_nz,o_nnz,newmat);
471: }


474: /*
475:       The MatShell Matrix Vector product requires a C routine.
476:    This C routine then calls the corresponding Fortran routine that was
477:    set by the user.
478: */
479: void PETSC_STDCALL matcreateshell_(MPI_Comm *comm,int *m,int *n,int *M,int *N,void **ctx,Mat *mat,int *ierr)
480: {
481:   *MatCreateShell((MPI_Comm)PetscToPointerComm(*comm),*m,*n,*M,*N,*ctx,mat);
482:   if (*ierr) return;
483:   *PetscMalloc(4*sizeof(void *),&((PetscObject)*mat)->fortran_func_pointers);
484: }

486: static int ourmult(Mat mat,Vec x,Vec y)
487: {
488:   int              0;
489:   (*(int (PETSC_STDCALL *)(Mat*,Vec*,Vec*,int*))(((PetscObject)mat)->fortran_func_pointers[0]))(&mat,&x,&y,&ierr);
490:   return ierr;
491: }

493: static int ourmulttranspose(Mat mat,Vec x,Vec y)
494: {
495:   int              0;
496:   (*(int (PETSC_STDCALL *)(Mat*,Vec*,Vec*,int*))(((PetscObject)mat)->fortran_func_pointers[2]))(&mat,&x,&y,&ierr);
497:   return ierr;
498: }

500: static int ourmultadd(Mat mat,Vec x,Vec y,Vec z)
501: {
502:   int              0;
503:   (*(int (PETSC_STDCALL *)(Mat*,Vec*,Vec*,Vec*,int*))(((PetscObject)mat)->fortran_func_pointers[1]))(&mat,&x,&y,&z,&ierr);
504:   return ierr;
505: }

507: static int ourmulttransposeadd(Mat mat,Vec x,Vec y,Vec z)
508: {
509:   int              0;
510:   (*(int (PETSC_STDCALL *)(Mat*,Vec*,Vec*,Vec*,int*))(((PetscObject)mat)->fortran_func_pointers[3]))(&mat,&x,&y,&z,&ierr);
511:   return ierr;
512: }

514: void PETSC_STDCALL matshellsetoperation_(Mat *mat,MatOperation *op,int (PETSC_STDCALL *f)(Mat*,Vec*,Vec*,int*),int *ierr)
515: {
516:   if (*op == MATOP_MULT) {
517:     *MatShellSetOperation(*mat,*op,(void(*)(void))ourmult);
518:     ((PetscObject)*mat)->fortran_func_pointers[0] = (void(*)(void))f;
519:   } else if (*op == MATOP_MULT_TRANSPOSE) {
520:     *MatShellSetOperation(*mat,*op,(void(*)(void))ourmulttranspose);
521:     ((PetscObject)*mat)->fortran_func_pointers[2] = (void(*)(void))f;
522:   } else if (*op == MATOP_MULT_ADD) {
523:     *MatShellSetOperation(*mat,*op,(void(*)(void))ourmultadd);
524:     ((PetscObject)*mat)->fortran_func_pointers[1] = (void(*)(void))f;
525:   } else if (*op == MATOP_MULT_TRANSPOSE_ADD) {
526:     *MatShellSetOperation(*mat,*op,(void(*)(void))ourmulttransposeadd);
527:     ((PetscObject)*mat)->fortran_func_pointers[3] = (void(*)(void))f;
528:   } else {
529:     PetscError(__LINE__,"MatShellSetOperation_Fortran",__FILE__,__SDIR__,1,0,
530:                "Cannot set that matrix operation");
531:     *1;
532:   }
533: }

535:  #include petscts.h
536: /*
537:         MatFDColoringSetFunction sticks the Fortran function into the fortran_func_pointers
538:     this function is then accessed by ourmatfdcoloringfunction()

540:    NOTE: FORTRAN USER CANNOT PUT IN A NEW J OR B currently.

542:    USER CAN HAVE ONLY ONE MatFDColoring in code Because there is no place to hang f7!
543: */

545: static void (PETSC_STDCALL *f7)(TS*,double*,Vec*,Vec*,void*,int*);

547: static int ourmatfdcoloringfunctionts(TS ts,double t,Vec x,Vec y,void *ctx)
548: {
549:   int 0;
550:   (*f7)(&ts,&t,&x,&y,ctx,&ierr);
551:   return ierr;
552: }

554: void PETSC_STDCALL matfdcoloringsetfunctionts_(MatFDColoring *fd,void (PETSC_STDCALL *f)(TS*,double*,Vec*,Vec*,void*,int*),
555:                                  void *ctx,int *ierr)
556: {
557:   f7 = f;
558:   *MatFDColoringSetFunction(*fd,(int (*)(void))ourmatfdcoloringfunctionts,ctx);
559: }

561: static void (PETSC_STDCALL *f8)(SNES*,Vec*,Vec*,void*,int*);

563: static int ourmatfdcoloringfunctionsnes(SNES ts,Vec x,Vec y,void *ctx)
564: {
565:   int 0;
566:   (*f8)(&ts,&x,&y,ctx,&ierr);
567:   return ierr;
568: }


571: void PETSC_STDCALL matfdcoloringsetfunctionsnes_(MatFDColoring *fd,void (PETSC_STDCALL *f)(SNES*,Vec*,Vec*,void*,int*),
572:                                  void *ctx,int *ierr)
573: {
574:   f8 = f;
575:   *MatFDColoringSetFunction(*fd,(int (*)(void))ourmatfdcoloringfunctionsnes,ctx);
576: }

578: /*
579:     MatGetSubmatrices() is slightly different from C since the 
580:     Fortran provides the array to hold the submatrix objects,while in C that 
581:     array is allocated by the MatGetSubmatrices()
582: */
583: void PETSC_STDCALL matgetsubmatrices_(Mat *mat,int *n,IS *isrow,IS *iscol,MatReuse *scall,Mat *smat,int *ierr)
584: {
585:   Mat *lsmat;
586:   int i;

588:   if (*scall == MAT_INITIAL_MATRIX) {
589:     *MatGetSubMatrices(*mat,*n,isrow,iscol,*scall,&lsmat);
590:     for (i=0; i<*n; i++) {
591:       smat[i] = lsmat[i];
592:     }
593:     PetscFree(lsmat);
594:   } else {
595:     *MatGetSubMatrices(*mat,*n,isrow,iscol,*scall,&smat);
596:   }
597: }

599: void PETSC_STDCALL matduplicate_(Mat *matin,MatDuplicateOption *op,Mat *matout,int *ierr)
600: {
601:   *MatDuplicate(*matin,*op,matout);
602: }

604: void PETSC_STDCALL matzerorows_(Mat *mat,IS *is,PetscScalar *diag,int *ierr)
605: {
606:   CHKFORTRANNULLSCALAR(diag);
607:   *MatZeroRows(*mat,*is,diag);
608: }

610: void PETSC_STDCALL matzerorowslocal_(Mat *mat,IS *is,PetscScalar *diag,int *ierr)
611: {
612:   CHKFORTRANNULLSCALAR(diag);
613:   *MatZeroRowsLocal(*mat,*is,diag);
614: }

616: EXTERN_C_END