1 2 #include <../src/mat/impls/baij/mpi/mpibaij.h> /*I "petscmat.h" I*/ 3 #include <../src/mat/impls/sbaij/mpi/mpisbaij.h> 4 #include <../src/mat/impls/sbaij/seq/sbaij.h> 5 #include <petscblaslapack.h> 6 7 extern PetscErrorCode MatSetUpMultiply_MPISBAIJ(Mat); 8 extern PetscErrorCode MatSetUpMultiply_MPISBAIJ_2comm(Mat); 9 extern PetscErrorCode MatDisAssemble_MPISBAIJ(Mat); 10 extern PetscErrorCode MatIncreaseOverlap_MPISBAIJ(Mat,PetscInt,IS[],PetscInt); 11 extern PetscErrorCode MatGetValues_SeqSBAIJ(Mat,PetscInt,const PetscInt[],PetscInt,const PetscInt[],PetscScalar []); 12 extern PetscErrorCode MatGetValues_SeqBAIJ(Mat,PetscInt,const PetscInt[],PetscInt,const PetscInt[],PetscScalar []); 13 extern PetscErrorCode MatSetValues_SeqSBAIJ(Mat,PetscInt,const PetscInt [],PetscInt,const PetscInt [],const PetscScalar [],InsertMode); 14 extern PetscErrorCode MatSetValuesBlocked_SeqSBAIJ(Mat,PetscInt,const PetscInt[],PetscInt,const PetscInt[],const PetscScalar[],InsertMode); 15 extern PetscErrorCode MatSetValuesBlocked_SeqBAIJ(Mat,PetscInt,const PetscInt[],PetscInt,const PetscInt[],const PetscScalar[],InsertMode); 16 extern PetscErrorCode MatGetRow_SeqSBAIJ(Mat,PetscInt,PetscInt*,PetscInt**,PetscScalar**); 17 extern PetscErrorCode MatRestoreRow_SeqSBAIJ(Mat,PetscInt,PetscInt*,PetscInt**,PetscScalar**); 18 extern PetscErrorCode MatZeroRows_SeqSBAIJ(Mat,IS,PetscScalar*,Vec,Vec); 19 extern PetscErrorCode MatZeroRows_SeqBAIJ(Mat,IS,PetscScalar *,Vec,Vec); 20 extern PetscErrorCode MatGetRowMaxAbs_MPISBAIJ(Mat,Vec,PetscInt[]); 21 extern PetscErrorCode MatSOR_MPISBAIJ(Mat,Vec,PetscReal,MatSORType,PetscReal,PetscInt,PetscInt,Vec); 22 23 EXTERN_C_BEGIN 24 #undef __FUNCT__ 25 #define __FUNCT__ "MatStoreValues_MPISBAIJ" 26 PetscErrorCode MatStoreValues_MPISBAIJ(Mat mat) 27 { 28 Mat_MPISBAIJ *aij = (Mat_MPISBAIJ *)mat->data; 29 PetscErrorCode ierr; 30 31 PetscFunctionBegin; 32 ierr = MatStoreValues(aij->A);CHKERRQ(ierr); 33 ierr = MatStoreValues(aij->B);CHKERRQ(ierr); 34 PetscFunctionReturn(0); 35 } 36 EXTERN_C_END 37 38 EXTERN_C_BEGIN 39 #undef __FUNCT__ 40 #define __FUNCT__ "MatRetrieveValues_MPISBAIJ" 41 PetscErrorCode MatRetrieveValues_MPISBAIJ(Mat mat) 42 { 43 Mat_MPISBAIJ *aij = (Mat_MPISBAIJ *)mat->data; 44 PetscErrorCode ierr; 45 46 PetscFunctionBegin; 47 ierr = MatRetrieveValues(aij->A);CHKERRQ(ierr); 48 ierr = MatRetrieveValues(aij->B);CHKERRQ(ierr); 49 PetscFunctionReturn(0); 50 } 51 EXTERN_C_END 52 53 54 #define MatSetValues_SeqSBAIJ_A_Private(row,col,value,addv) \ 55 { \ 56 \ 57 brow = row/bs; \ 58 rp = aj + ai[brow]; ap = aa + bs2*ai[brow]; \ 59 rmax = aimax[brow]; nrow = ailen[brow]; \ 60 bcol = col/bs; \ 61 ridx = row % bs; cidx = col % bs; \ 62 low = 0; high = nrow; \ 63 while (high-low > 3) { \ 64 t = (low+high)/2; \ 65 if (rp[t] > bcol) high = t; \ 66 else low = t; \ 67 } \ 68 for (_i=low; _i<high; _i++) { \ 69 if (rp[_i] > bcol) break; \ 70 if (rp[_i] == bcol) { \ 71 bap = ap + bs2*_i + bs*cidx + ridx; \ 72 if (addv == ADD_VALUES) *bap += value; \ 73 else *bap = value; \ 74 goto a_noinsert; \ 75 } \ 76 } \ 77 if (a->nonew == 1) goto a_noinsert; \ 78 if (a->nonew == -1) SETERRQ2(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"Inserting a new nonzero (%D, %D) into matrix", row, col); \ 79 MatSeqXAIJReallocateAIJ(A,a->mbs,bs2,nrow,brow,bcol,rmax,aa,ai,aj,rp,ap,aimax,a->nonew,MatScalar); \ 80 N = nrow++ - 1; \ 81 /* shift up all the later entries in this row */ \ 82 for (ii=N; ii>=_i; ii--) { \ 83 rp[ii+1] = rp[ii]; \ 84 ierr = PetscMemcpy(ap+bs2*(ii+1),ap+bs2*(ii),bs2*sizeof(MatScalar));CHKERRQ(ierr); \ 85 } \ 86 if (N>=_i) { ierr = PetscMemzero(ap+bs2*_i,bs2*sizeof(MatScalar));CHKERRQ(ierr); } \ 87 rp[_i] = bcol; \ 88 ap[bs2*_i + bs*cidx + ridx] = value; \ 89 a_noinsert:; \ 90 ailen[brow] = nrow; \ 91 } 92 93 #define MatSetValues_SeqSBAIJ_B_Private(row,col,value,addv) \ 94 { \ 95 brow = row/bs; \ 96 rp = bj + bi[brow]; ap = ba + bs2*bi[brow]; \ 97 rmax = bimax[brow]; nrow = bilen[brow]; \ 98 bcol = col/bs; \ 99 ridx = row % bs; cidx = col % bs; \ 100 low = 0; high = nrow; \ 101 while (high-low > 3) { \ 102 t = (low+high)/2; \ 103 if (rp[t] > bcol) high = t; \ 104 else low = t; \ 105 } \ 106 for (_i=low; _i<high; _i++) { \ 107 if (rp[_i] > bcol) break; \ 108 if (rp[_i] == bcol) { \ 109 bap = ap + bs2*_i + bs*cidx + ridx; \ 110 if (addv == ADD_VALUES) *bap += value; \ 111 else *bap = value; \ 112 goto b_noinsert; \ 113 } \ 114 } \ 115 if (b->nonew == 1) goto b_noinsert; \ 116 if (b->nonew == -1) SETERRQ2(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"Inserting a new nonzero (%D, %D) into matrix", row, col); \ 117 MatSeqXAIJReallocateAIJ(B,b->mbs,bs2,nrow,brow,bcol,rmax,ba,bi,bj,rp,ap,bimax,b->nonew,MatScalar); \ 118 N = nrow++ - 1; \ 119 /* shift up all the later entries in this row */ \ 120 for (ii=N; ii>=_i; ii--) { \ 121 rp[ii+1] = rp[ii]; \ 122 ierr = PetscMemcpy(ap+bs2*(ii+1),ap+bs2*(ii),bs2*sizeof(MatScalar));CHKERRQ(ierr); \ 123 } \ 124 if (N>=_i) { ierr = PetscMemzero(ap+bs2*_i,bs2*sizeof(MatScalar));CHKERRQ(ierr);} \ 125 rp[_i] = bcol; \ 126 ap[bs2*_i + bs*cidx + ridx] = value; \ 127 b_noinsert:; \ 128 bilen[brow] = nrow; \ 129 } 130 131 /* Only add/insert a(i,j) with i<=j (blocks). 132 Any a(i,j) with i>j input by user is ingored. 133 */ 134 #undef __FUNCT__ 135 #define __FUNCT__ "MatSetValues_MPISBAIJ" 136 PetscErrorCode MatSetValues_MPISBAIJ(Mat mat,PetscInt m,const PetscInt im[],PetscInt n,const PetscInt in[],const PetscScalar v[],InsertMode addv) 137 { 138 Mat_MPISBAIJ *baij = (Mat_MPISBAIJ*)mat->data; 139 MatScalar value; 140 PetscBool roworiented = baij->roworiented; 141 PetscErrorCode ierr; 142 PetscInt i,j,row,col; 143 PetscInt rstart_orig=mat->rmap->rstart; 144 PetscInt rend_orig=mat->rmap->rend,cstart_orig=mat->cmap->rstart; 145 PetscInt cend_orig=mat->cmap->rend,bs=mat->rmap->bs; 146 147 /* Some Variables required in the macro */ 148 Mat A = baij->A; 149 Mat_SeqSBAIJ *a = (Mat_SeqSBAIJ*)(A)->data; 150 PetscInt *aimax=a->imax,*ai=a->i,*ailen=a->ilen,*aj=a->j; 151 MatScalar *aa=a->a; 152 153 Mat B = baij->B; 154 Mat_SeqBAIJ *b = (Mat_SeqBAIJ*)(B)->data; 155 PetscInt *bimax=b->imax,*bi=b->i,*bilen=b->ilen,*bj=b->j; 156 MatScalar *ba=b->a; 157 158 PetscInt *rp,ii,nrow,_i,rmax,N,brow,bcol; 159 PetscInt low,high,t,ridx,cidx,bs2=a->bs2; 160 MatScalar *ap,*bap; 161 162 /* for stash */ 163 PetscInt n_loc, *in_loc = PETSC_NULL; 164 MatScalar *v_loc = PETSC_NULL; 165 166 PetscFunctionBegin; 167 if (v) PetscValidScalarPointer(v,6); 168 if (!baij->donotstash){ 169 if (n > baij->n_loc) { 170 ierr = PetscFree(baij->in_loc);CHKERRQ(ierr); 171 ierr = PetscFree(baij->v_loc);CHKERRQ(ierr); 172 ierr = PetscMalloc(n*sizeof(PetscInt),&baij->in_loc);CHKERRQ(ierr); 173 ierr = PetscMalloc(n*sizeof(MatScalar),&baij->v_loc);CHKERRQ(ierr); 174 baij->n_loc = n; 175 } 176 in_loc = baij->in_loc; 177 v_loc = baij->v_loc; 178 } 179 180 for (i=0; i<m; i++) { 181 if (im[i] < 0) continue; 182 #if defined(PETSC_USE_DEBUG) 183 if (im[i] >= mat->rmap->N) SETERRQ2(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"Row too large: row %D max %D",im[i],mat->rmap->N-1); 184 #endif 185 if (im[i] >= rstart_orig && im[i] < rend_orig) { /* this processor entry */ 186 row = im[i] - rstart_orig; /* local row index */ 187 for (j=0; j<n; j++) { 188 if (im[i]/bs > in[j]/bs){ 189 if (a->ignore_ltriangular){ 190 continue; /* ignore lower triangular blocks */ 191 } else { 192 SETERRQ(PETSC_COMM_SELF,PETSC_ERR_USER,"Lower triangular value cannot be set for sbaij format. Ignoring these values, run with -mat_ignore_lower_triangular or call MatSetOption(mat,MAT_IGNORE_LOWER_TRIANGULAR,PETSC_TRUE)"); 193 } 194 } 195 if (in[j] >= cstart_orig && in[j] < cend_orig){ /* diag entry (A) */ 196 col = in[j] - cstart_orig; /* local col index */ 197 brow = row/bs; bcol = col/bs; 198 if (brow > bcol) continue; /* ignore lower triangular blocks of A */ 199 if (roworiented) value = v[i*n+j]; else value = v[i+j*m]; 200 MatSetValues_SeqSBAIJ_A_Private(row,col,value,addv); 201 /* ierr = MatSetValues_SeqBAIJ(baij->A,1,&row,1,&col,&value,addv);CHKERRQ(ierr); */ 202 } else if (in[j] < 0) continue; 203 #if defined(PETSC_USE_DEBUG) 204 else if (in[j] >= mat->cmap->N) SETERRQ2(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"Column too large: col %D max %D",in[j],mat->cmap->N-1); 205 #endif 206 else { /* off-diag entry (B) */ 207 if (mat->was_assembled) { 208 if (!baij->colmap) { 209 ierr = MatCreateColmap_MPIBAIJ_Private(mat);CHKERRQ(ierr); 210 } 211 #if defined (PETSC_USE_CTABLE) 212 ierr = PetscTableFind(baij->colmap,in[j]/bs + 1,&col);CHKERRQ(ierr); 213 col = col - 1; 214 #else 215 col = baij->colmap[in[j]/bs] - 1; 216 #endif 217 if (col < 0 && !((Mat_SeqSBAIJ*)(baij->A->data))->nonew) { 218 ierr = MatDisAssemble_MPISBAIJ(mat);CHKERRQ(ierr); 219 col = in[j]; 220 /* Reinitialize the variables required by MatSetValues_SeqBAIJ_B_Private() */ 221 B = baij->B; 222 b = (Mat_SeqBAIJ*)(B)->data; 223 bimax=b->imax;bi=b->i;bilen=b->ilen;bj=b->j; 224 ba=b->a; 225 } else col += in[j]%bs; 226 } else col = in[j]; 227 if (roworiented) value = v[i*n+j]; else value = v[i+j*m]; 228 MatSetValues_SeqSBAIJ_B_Private(row,col,value,addv); 229 /* ierr = MatSetValues_SeqBAIJ(baij->B,1,&row,1,&col,&value,addv);CHKERRQ(ierr); */ 230 } 231 } 232 } else { /* off processor entry */ 233 if (mat->nooffprocentries) SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_ARG_WRONG,"Setting off process row %D even though MatSetOption(,MAT_NO_OFF_PROC_ENTRIES,PETSC_TRUE) was set",im[i]); 234 if (!baij->donotstash) { 235 mat->assembled = PETSC_FALSE; 236 n_loc = 0; 237 for (j=0; j<n; j++){ 238 if (im[i]/bs > in[j]/bs) continue; /* ignore lower triangular blocks */ 239 in_loc[n_loc] = in[j]; 240 if (roworiented) { 241 v_loc[n_loc] = v[i*n+j]; 242 } else { 243 v_loc[n_loc] = v[j*m+i]; 244 } 245 n_loc++; 246 } 247 ierr = MatStashValuesRow_Private(&mat->stash,im[i],n_loc,in_loc,v_loc,PETSC_FALSE);CHKERRQ(ierr); 248 } 249 } 250 } 251 PetscFunctionReturn(0); 252 } 253 254 #undef __FUNCT__ 255 #define __FUNCT__ "MatSetValuesBlocked_MPISBAIJ" 256 PetscErrorCode MatSetValuesBlocked_MPISBAIJ(Mat mat,PetscInt m,const PetscInt im[],PetscInt n,const PetscInt in[],const MatScalar v[],InsertMode addv) 257 { 258 Mat_MPISBAIJ *baij = (Mat_MPISBAIJ*)mat->data; 259 const MatScalar *value; 260 MatScalar *barray=baij->barray; 261 PetscBool roworiented = baij->roworiented,ignore_ltriangular = ((Mat_SeqSBAIJ*)baij->A->data)->ignore_ltriangular; 262 PetscErrorCode ierr; 263 PetscInt i,j,ii,jj,row,col,rstart=baij->rstartbs; 264 PetscInt rend=baij->rendbs,cstart=baij->rstartbs,stepval; 265 PetscInt cend=baij->rendbs,bs=mat->rmap->bs,bs2=baij->bs2; 266 267 PetscFunctionBegin; 268 if(!barray) { 269 ierr = PetscMalloc(bs2*sizeof(MatScalar),&barray);CHKERRQ(ierr); 270 baij->barray = barray; 271 } 272 273 if (roworiented) { 274 stepval = (n-1)*bs; 275 } else { 276 stepval = (m-1)*bs; 277 } 278 for (i=0; i<m; i++) { 279 if (im[i] < 0) continue; 280 #if defined(PETSC_USE_DEBUG) 281 if (im[i] >= baij->Mbs) SETERRQ2(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"Row too large, row %D max %D",im[i],baij->Mbs-1); 282 #endif 283 if (im[i] >= rstart && im[i] < rend) { 284 row = im[i] - rstart; 285 for (j=0; j<n; j++) { 286 if (im[i] > in[j]) { 287 if (ignore_ltriangular) continue; /* ignore lower triangular blocks */ 288 else SETERRQ(PETSC_COMM_SELF,PETSC_ERR_USER,"Lower triangular value cannot be set for sbaij format. Ignoring these values, run with -mat_ignore_lower_triangular or call MatSetOption(mat,MAT_IGNORE_LOWER_TRIANGULAR,PETSC_TRUE)"); 289 } 290 /* If NumCol = 1 then a copy is not required */ 291 if ((roworiented) && (n == 1)) { 292 barray = (MatScalar*) v + i*bs2; 293 } else if((!roworiented) && (m == 1)) { 294 barray = (MatScalar*) v + j*bs2; 295 } else { /* Here a copy is required */ 296 if (roworiented) { 297 value = v + i*(stepval+bs)*bs + j*bs; 298 } else { 299 value = v + j*(stepval+bs)*bs + i*bs; 300 } 301 for (ii=0; ii<bs; ii++,value+=stepval) { 302 for (jj=0; jj<bs; jj++) { 303 *barray++ = *value++; 304 } 305 } 306 barray -=bs2; 307 } 308 309 if (in[j] >= cstart && in[j] < cend){ 310 col = in[j] - cstart; 311 ierr = MatSetValuesBlocked_SeqSBAIJ(baij->A,1,&row,1,&col,barray,addv);CHKERRQ(ierr); 312 } 313 else if (in[j] < 0) continue; 314 #if defined(PETSC_USE_DEBUG) 315 else if (in[j] >= baij->Nbs) SETERRQ2(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"Column too large, col %D max %D",in[j],baij->Nbs-1); 316 #endif 317 else { 318 if (mat->was_assembled) { 319 if (!baij->colmap) { 320 ierr = MatCreateColmap_MPIBAIJ_Private(mat);CHKERRQ(ierr); 321 } 322 323 #if defined(PETSC_USE_DEBUG) 324 #if defined (PETSC_USE_CTABLE) 325 { PetscInt data; 326 ierr = PetscTableFind(baij->colmap,in[j]+1,&data);CHKERRQ(ierr); 327 if ((data - 1) % bs) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_PLIB,"Incorrect colmap"); 328 } 329 #else 330 if ((baij->colmap[in[j]] - 1) % bs) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_PLIB,"Incorrect colmap"); 331 #endif 332 #endif 333 #if defined (PETSC_USE_CTABLE) 334 ierr = PetscTableFind(baij->colmap,in[j]+1,&col);CHKERRQ(ierr); 335 col = (col - 1)/bs; 336 #else 337 col = (baij->colmap[in[j]] - 1)/bs; 338 #endif 339 if (col < 0 && !((Mat_SeqBAIJ*)(baij->A->data))->nonew) { 340 ierr = MatDisAssemble_MPISBAIJ(mat);CHKERRQ(ierr); 341 col = in[j]; 342 } 343 } 344 else col = in[j]; 345 ierr = MatSetValuesBlocked_SeqBAIJ(baij->B,1,&row,1,&col,barray,addv);CHKERRQ(ierr); 346 } 347 } 348 } else { 349 if (mat->nooffprocentries) SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_ARG_WRONG,"Setting off process row %D even though MatSetOption(,MAT_NO_OFF_PROC_ENTRIES,PETSC_TRUE) was set",im[i]); 350 if (!baij->donotstash) { 351 if (roworiented) { 352 ierr = MatStashValuesRowBlocked_Private(&mat->bstash,im[i],n,in,v,m,n,i);CHKERRQ(ierr); 353 } else { 354 ierr = MatStashValuesColBlocked_Private(&mat->bstash,im[i],n,in,v,m,n,i);CHKERRQ(ierr); 355 } 356 } 357 } 358 } 359 PetscFunctionReturn(0); 360 } 361 362 #undef __FUNCT__ 363 #define __FUNCT__ "MatGetValues_MPISBAIJ" 364 PetscErrorCode MatGetValues_MPISBAIJ(Mat mat,PetscInt m,const PetscInt idxm[],PetscInt n,const PetscInt idxn[],PetscScalar v[]) 365 { 366 Mat_MPISBAIJ *baij = (Mat_MPISBAIJ*)mat->data; 367 PetscErrorCode ierr; 368 PetscInt bs=mat->rmap->bs,i,j,bsrstart = mat->rmap->rstart,bsrend = mat->rmap->rend; 369 PetscInt bscstart = mat->cmap->rstart,bscend = mat->cmap->rend,row,col,data; 370 371 PetscFunctionBegin; 372 for (i=0; i<m; i++) { 373 if (idxm[i] < 0) continue; /* SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"Negative row: %D",idxm[i]); */ 374 if (idxm[i] >= mat->rmap->N) SETERRQ2(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"Row too large: row %D max %D",idxm[i],mat->rmap->N-1); 375 if (idxm[i] >= bsrstart && idxm[i] < bsrend) { 376 row = idxm[i] - bsrstart; 377 for (j=0; j<n; j++) { 378 if (idxn[j] < 0) continue; /* SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"Negative column %D",idxn[j]); */ 379 if (idxn[j] >= mat->cmap->N) SETERRQ2(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"Column too large: col %D max %D",idxn[j],mat->cmap->N-1); 380 if (idxn[j] >= bscstart && idxn[j] < bscend){ 381 col = idxn[j] - bscstart; 382 ierr = MatGetValues_SeqSBAIJ(baij->A,1,&row,1,&col,v+i*n+j);CHKERRQ(ierr); 383 } else { 384 if (!baij->colmap) { 385 ierr = MatCreateColmap_MPIBAIJ_Private(mat);CHKERRQ(ierr); 386 } 387 #if defined (PETSC_USE_CTABLE) 388 ierr = PetscTableFind(baij->colmap,idxn[j]/bs+1,&data);CHKERRQ(ierr); 389 data --; 390 #else 391 data = baij->colmap[idxn[j]/bs]-1; 392 #endif 393 if((data < 0) || (baij->garray[data/bs] != idxn[j]/bs)) *(v+i*n+j) = 0.0; 394 else { 395 col = data + idxn[j]%bs; 396 ierr = MatGetValues_SeqBAIJ(baij->B,1,&row,1,&col,v+i*n+j);CHKERRQ(ierr); 397 } 398 } 399 } 400 } else { 401 SETERRQ(PETSC_COMM_SELF,PETSC_ERR_SUP,"Only local values currently supported"); 402 } 403 } 404 PetscFunctionReturn(0); 405 } 406 407 #undef __FUNCT__ 408 #define __FUNCT__ "MatNorm_MPISBAIJ" 409 PetscErrorCode MatNorm_MPISBAIJ(Mat mat,NormType type,PetscReal *norm) 410 { 411 Mat_MPISBAIJ *baij = (Mat_MPISBAIJ*)mat->data; 412 PetscErrorCode ierr; 413 PetscReal sum[2],*lnorm2; 414 415 PetscFunctionBegin; 416 if (baij->size == 1) { 417 ierr = MatNorm(baij->A,type,norm);CHKERRQ(ierr); 418 } else { 419 if (type == NORM_FROBENIUS) { 420 ierr = PetscMalloc(2*sizeof(PetscReal),&lnorm2);CHKERRQ(ierr); 421 ierr = MatNorm(baij->A,type,lnorm2);CHKERRQ(ierr); 422 *lnorm2 = (*lnorm2)*(*lnorm2); lnorm2++; /* squar power of norm(A) */ 423 ierr = MatNorm(baij->B,type,lnorm2);CHKERRQ(ierr); 424 *lnorm2 = (*lnorm2)*(*lnorm2); lnorm2--; /* squar power of norm(B) */ 425 ierr = MPI_Allreduce(lnorm2,&sum,2,MPIU_REAL,MPIU_SUM,((PetscObject)mat)->comm);CHKERRQ(ierr); 426 *norm = PetscSqrtReal(sum[0] + 2*sum[1]); 427 ierr = PetscFree(lnorm2);CHKERRQ(ierr); 428 } else if (type == NORM_INFINITY || type == NORM_1) { /* max row/column sum */ 429 Mat_SeqSBAIJ *amat=(Mat_SeqSBAIJ*)baij->A->data; 430 Mat_SeqBAIJ *bmat=(Mat_SeqBAIJ*)baij->B->data; 431 PetscReal *rsum,*rsum2,vabs; 432 PetscInt *jj,*garray=baij->garray,rstart=baij->rstartbs,nz; 433 PetscInt brow,bcol,col,bs=baij->A->rmap->bs,row,grow,gcol,mbs=amat->mbs; 434 MatScalar *v; 435 436 ierr = PetscMalloc2(mat->cmap->N,PetscReal,&rsum,mat->cmap->N,PetscReal,&rsum2);CHKERRQ(ierr); 437 ierr = PetscMemzero(rsum,mat->cmap->N*sizeof(PetscReal));CHKERRQ(ierr); 438 /* Amat */ 439 v = amat->a; jj = amat->j; 440 for (brow=0; brow<mbs; brow++) { 441 grow = bs*(rstart + brow); 442 nz = amat->i[brow+1] - amat->i[brow]; 443 for (bcol=0; bcol<nz; bcol++){ 444 gcol = bs*(rstart + *jj); jj++; 445 for (col=0; col<bs; col++){ 446 for (row=0; row<bs; row++){ 447 vabs = PetscAbsScalar(*v); v++; 448 rsum[gcol+col] += vabs; 449 /* non-diagonal block */ 450 if (bcol > 0 && vabs > 0.0) rsum[grow+row] += vabs; 451 } 452 } 453 } 454 } 455 /* Bmat */ 456 v = bmat->a; jj = bmat->j; 457 for (brow=0; brow<mbs; brow++) { 458 grow = bs*(rstart + brow); 459 nz = bmat->i[brow+1] - bmat->i[brow]; 460 for (bcol=0; bcol<nz; bcol++){ 461 gcol = bs*garray[*jj]; jj++; 462 for (col=0; col<bs; col++){ 463 for (row=0; row<bs; row++){ 464 vabs = PetscAbsScalar(*v); v++; 465 rsum[gcol+col] += vabs; 466 rsum[grow+row] += vabs; 467 } 468 } 469 } 470 } 471 ierr = MPI_Allreduce(rsum,rsum2,mat->cmap->N,MPIU_REAL,MPIU_SUM,((PetscObject)mat)->comm);CHKERRQ(ierr); 472 *norm = 0.0; 473 for (col=0; col<mat->cmap->N; col++) { 474 if (rsum2[col] > *norm) *norm = rsum2[col]; 475 } 476 ierr = PetscFree2(rsum,rsum2);CHKERRQ(ierr); 477 } else { 478 SETERRQ(PETSC_COMM_SELF,PETSC_ERR_SUP,"No support for this norm yet"); 479 } 480 } 481 PetscFunctionReturn(0); 482 } 483 484 #undef __FUNCT__ 485 #define __FUNCT__ "MatAssemblyBegin_MPISBAIJ" 486 PetscErrorCode MatAssemblyBegin_MPISBAIJ(Mat mat,MatAssemblyType mode) 487 { 488 Mat_MPISBAIJ *baij = (Mat_MPISBAIJ*)mat->data; 489 PetscErrorCode ierr; 490 PetscInt nstash,reallocs; 491 InsertMode addv; 492 493 PetscFunctionBegin; 494 if (baij->donotstash || mat->nooffprocentries) { 495 PetscFunctionReturn(0); 496 } 497 498 /* make sure all processors are either in INSERTMODE or ADDMODE */ 499 ierr = MPI_Allreduce(&mat->insertmode,&addv,1,MPI_INT,MPI_BOR,((PetscObject)mat)->comm);CHKERRQ(ierr); 500 if (addv == (ADD_VALUES|INSERT_VALUES)) SETERRQ(((PetscObject)mat)->comm,PETSC_ERR_ARG_WRONGSTATE,"Some processors inserted others added"); 501 mat->insertmode = addv; /* in case this processor had no cache */ 502 503 ierr = MatStashScatterBegin_Private(mat,&mat->stash,mat->rmap->range);CHKERRQ(ierr); 504 ierr = MatStashScatterBegin_Private(mat,&mat->bstash,baij->rangebs);CHKERRQ(ierr); 505 ierr = MatStashGetInfo_Private(&mat->stash,&nstash,&reallocs);CHKERRQ(ierr); 506 ierr = PetscInfo2(mat,"Stash has %D entries,uses %D mallocs.\n",nstash,reallocs);CHKERRQ(ierr); 507 ierr = MatStashGetInfo_Private(&mat->stash,&nstash,&reallocs);CHKERRQ(ierr); 508 ierr = PetscInfo2(mat,"Block-Stash has %D entries, uses %D mallocs.\n",nstash,reallocs);CHKERRQ(ierr); 509 PetscFunctionReturn(0); 510 } 511 512 #undef __FUNCT__ 513 #define __FUNCT__ "MatAssemblyEnd_MPISBAIJ" 514 PetscErrorCode MatAssemblyEnd_MPISBAIJ(Mat mat,MatAssemblyType mode) 515 { 516 Mat_MPISBAIJ *baij=(Mat_MPISBAIJ*)mat->data; 517 Mat_SeqSBAIJ *a=(Mat_SeqSBAIJ*)baij->A->data; 518 PetscErrorCode ierr; 519 PetscInt i,j,rstart,ncols,flg,bs2=baij->bs2; 520 PetscInt *row,*col; 521 PetscBool other_disassembled; 522 PetscMPIInt n; 523 PetscBool r1,r2,r3; 524 MatScalar *val; 525 InsertMode addv = mat->insertmode; 526 527 /* do not use 'b=(Mat_SeqBAIJ*)baij->B->data' as B can be reset in disassembly */ 528 PetscFunctionBegin; 529 530 if (!baij->donotstash && !mat->nooffprocentries) { 531 while (1) { 532 ierr = MatStashScatterGetMesg_Private(&mat->stash,&n,&row,&col,&val,&flg);CHKERRQ(ierr); 533 if (!flg) break; 534 535 for (i=0; i<n;) { 536 /* Now identify the consecutive vals belonging to the same row */ 537 for (j=i,rstart=row[j]; j<n; j++) { if (row[j] != rstart) break; } 538 if (j < n) ncols = j-i; 539 else ncols = n-i; 540 /* Now assemble all these values with a single function call */ 541 ierr = MatSetValues_MPISBAIJ(mat,1,row+i,ncols,col+i,val+i,addv);CHKERRQ(ierr); 542 i = j; 543 } 544 } 545 ierr = MatStashScatterEnd_Private(&mat->stash);CHKERRQ(ierr); 546 /* Now process the block-stash. Since the values are stashed column-oriented, 547 set the roworiented flag to column oriented, and after MatSetValues() 548 restore the original flags */ 549 r1 = baij->roworiented; 550 r2 = a->roworiented; 551 r3 = ((Mat_SeqBAIJ*)baij->B->data)->roworiented; 552 baij->roworiented = PETSC_FALSE; 553 a->roworiented = PETSC_FALSE; 554 ((Mat_SeqBAIJ*)baij->B->data)->roworiented = PETSC_FALSE; /* b->roworinted */ 555 while (1) { 556 ierr = MatStashScatterGetMesg_Private(&mat->bstash,&n,&row,&col,&val,&flg);CHKERRQ(ierr); 557 if (!flg) break; 558 559 for (i=0; i<n;) { 560 /* Now identify the consecutive vals belonging to the same row */ 561 for (j=i,rstart=row[j]; j<n; j++) { if (row[j] != rstart) break; } 562 if (j < n) ncols = j-i; 563 else ncols = n-i; 564 ierr = MatSetValuesBlocked_MPISBAIJ(mat,1,row+i,ncols,col+i,val+i*bs2,addv);CHKERRQ(ierr); 565 i = j; 566 } 567 } 568 ierr = MatStashScatterEnd_Private(&mat->bstash);CHKERRQ(ierr); 569 baij->roworiented = r1; 570 a->roworiented = r2; 571 ((Mat_SeqBAIJ*)baij->B->data)->roworiented = r3; /* b->roworinted */ 572 } 573 574 ierr = MatAssemblyBegin(baij->A,mode);CHKERRQ(ierr); 575 ierr = MatAssemblyEnd(baij->A,mode);CHKERRQ(ierr); 576 577 /* determine if any processor has disassembled, if so we must 578 also disassemble ourselfs, in order that we may reassemble. */ 579 /* 580 if nonzero structure of submatrix B cannot change then we know that 581 no processor disassembled thus we can skip this stuff 582 */ 583 if (!((Mat_SeqBAIJ*)baij->B->data)->nonew) { 584 ierr = MPI_Allreduce(&mat->was_assembled,&other_disassembled,1,MPI_INT,MPI_PROD,((PetscObject)mat)->comm);CHKERRQ(ierr); 585 if (mat->was_assembled && !other_disassembled) { 586 ierr = MatDisAssemble_MPISBAIJ(mat);CHKERRQ(ierr); 587 } 588 } 589 590 if (!mat->was_assembled && mode == MAT_FINAL_ASSEMBLY) { 591 ierr = MatSetUpMultiply_MPISBAIJ(mat);CHKERRQ(ierr); /* setup Mvctx and sMvctx */ 592 } 593 ierr = MatSetOption(baij->B,MAT_CHECK_COMPRESSED_ROW,PETSC_TRUE);CHKERRQ(ierr); 594 ierr = MatAssemblyBegin(baij->B,mode);CHKERRQ(ierr); 595 ierr = MatAssemblyEnd(baij->B,mode);CHKERRQ(ierr); 596 597 ierr = PetscFree2(baij->rowvalues,baij->rowindices);CHKERRQ(ierr); 598 baij->rowvalues = 0; 599 600 PetscFunctionReturn(0); 601 } 602 603 extern PetscErrorCode MatSetValues_MPIBAIJ(Mat,PetscInt,const PetscInt[],PetscInt,const PetscInt[],const PetscScalar[],InsertMode); 604 #undef __FUNCT__ 605 #define __FUNCT__ "MatView_MPISBAIJ_ASCIIorDraworSocket" 606 static PetscErrorCode MatView_MPISBAIJ_ASCIIorDraworSocket(Mat mat,PetscViewer viewer) 607 { 608 Mat_MPISBAIJ *baij = (Mat_MPISBAIJ*)mat->data; 609 PetscErrorCode ierr; 610 PetscInt bs = mat->rmap->bs; 611 PetscMPIInt size = baij->size,rank = baij->rank; 612 PetscBool iascii,isdraw; 613 PetscViewer sviewer; 614 PetscViewerFormat format; 615 616 PetscFunctionBegin; 617 ierr = PetscObjectTypeCompare((PetscObject)viewer,PETSCVIEWERASCII,&iascii);CHKERRQ(ierr); 618 ierr = PetscObjectTypeCompare((PetscObject)viewer,PETSCVIEWERDRAW,&isdraw);CHKERRQ(ierr); 619 if (iascii) { 620 ierr = PetscViewerGetFormat(viewer,&format);CHKERRQ(ierr); 621 if (format == PETSC_VIEWER_ASCII_INFO_DETAIL) { 622 MatInfo info; 623 ierr = MPI_Comm_rank(((PetscObject)mat)->comm,&rank);CHKERRQ(ierr); 624 ierr = MatGetInfo(mat,MAT_LOCAL,&info);CHKERRQ(ierr); 625 ierr = PetscViewerASCIISynchronizedAllow(viewer,PETSC_TRUE);CHKERRQ(ierr); 626 ierr = PetscViewerASCIISynchronizedPrintf(viewer,"[%d] Local rows %D nz %D nz alloced %D bs %D mem %D\n",rank,mat->rmap->n,(PetscInt)info.nz_used,(PetscInt)info.nz_allocated,mat->rmap->bs,(PetscInt)info.memory);CHKERRQ(ierr); 627 ierr = MatGetInfo(baij->A,MAT_LOCAL,&info);CHKERRQ(ierr); 628 ierr = PetscViewerASCIISynchronizedPrintf(viewer,"[%d] on-diagonal part: nz %D \n",rank,(PetscInt)info.nz_used);CHKERRQ(ierr); 629 ierr = MatGetInfo(baij->B,MAT_LOCAL,&info);CHKERRQ(ierr); 630 ierr = PetscViewerASCIISynchronizedPrintf(viewer,"[%d] off-diagonal part: nz %D \n",rank,(PetscInt)info.nz_used);CHKERRQ(ierr); 631 ierr = PetscViewerFlush(viewer);CHKERRQ(ierr); 632 ierr = PetscViewerASCIISynchronizedAllow(viewer,PETSC_FALSE);CHKERRQ(ierr); 633 ierr = PetscViewerASCIIPrintf(viewer,"Information on VecScatter used in matrix-vector product: \n");CHKERRQ(ierr); 634 ierr = VecScatterView(baij->Mvctx,viewer);CHKERRQ(ierr); 635 PetscFunctionReturn(0); 636 } else if (format == PETSC_VIEWER_ASCII_INFO) { 637 ierr = PetscViewerASCIIPrintf(viewer," block size is %D\n",bs);CHKERRQ(ierr); 638 PetscFunctionReturn(0); 639 } else if (format == PETSC_VIEWER_ASCII_FACTOR_INFO) { 640 PetscFunctionReturn(0); 641 } 642 } 643 644 if (isdraw) { 645 PetscDraw draw; 646 PetscBool isnull; 647 ierr = PetscViewerDrawGetDraw(viewer,0,&draw);CHKERRQ(ierr); 648 ierr = PetscDrawIsNull(draw,&isnull);CHKERRQ(ierr); if (isnull) PetscFunctionReturn(0); 649 } 650 651 if (size == 1) { 652 ierr = PetscObjectSetName((PetscObject)baij->A,((PetscObject)mat)->name);CHKERRQ(ierr); 653 ierr = MatView(baij->A,viewer);CHKERRQ(ierr); 654 } else { 655 /* assemble the entire matrix onto first processor. */ 656 Mat A; 657 Mat_SeqSBAIJ *Aloc; 658 Mat_SeqBAIJ *Bloc; 659 PetscInt M = mat->rmap->N,N = mat->cmap->N,*ai,*aj,col,i,j,k,*rvals,mbs = baij->mbs; 660 MatScalar *a; 661 662 /* Should this be the same type as mat? */ 663 ierr = MatCreate(((PetscObject)mat)->comm,&A);CHKERRQ(ierr); 664 if (!rank) { 665 ierr = MatSetSizes(A,M,N,M,N);CHKERRQ(ierr); 666 } else { 667 ierr = MatSetSizes(A,0,0,M,N);CHKERRQ(ierr); 668 } 669 ierr = MatSetType(A,MATMPISBAIJ);CHKERRQ(ierr); 670 ierr = MatMPISBAIJSetPreallocation(A,mat->rmap->bs,0,PETSC_NULL,0,PETSC_NULL);CHKERRQ(ierr); 671 ierr = MatSetOption(A,MAT_NEW_NONZERO_LOCATION_ERR,PETSC_FALSE);CHKERRQ(ierr); 672 ierr = PetscLogObjectParent(mat,A);CHKERRQ(ierr); 673 674 /* copy over the A part */ 675 Aloc = (Mat_SeqSBAIJ*)baij->A->data; 676 ai = Aloc->i; aj = Aloc->j; a = Aloc->a; 677 ierr = PetscMalloc(bs*sizeof(PetscInt),&rvals);CHKERRQ(ierr); 678 679 for (i=0; i<mbs; i++) { 680 rvals[0] = bs*(baij->rstartbs + i); 681 for (j=1; j<bs; j++) { rvals[j] = rvals[j-1] + 1; } 682 for (j=ai[i]; j<ai[i+1]; j++) { 683 col = (baij->cstartbs+aj[j])*bs; 684 for (k=0; k<bs; k++) { 685 ierr = MatSetValues_MPISBAIJ(A,bs,rvals,1,&col,a,INSERT_VALUES);CHKERRQ(ierr); 686 col++; a += bs; 687 } 688 } 689 } 690 /* copy over the B part */ 691 Bloc = (Mat_SeqBAIJ*)baij->B->data; 692 ai = Bloc->i; aj = Bloc->j; a = Bloc->a; 693 for (i=0; i<mbs; i++) { 694 695 rvals[0] = bs*(baij->rstartbs + i); 696 for (j=1; j<bs; j++) { rvals[j] = rvals[j-1] + 1; } 697 for (j=ai[i]; j<ai[i+1]; j++) { 698 col = baij->garray[aj[j]]*bs; 699 for (k=0; k<bs; k++) { 700 ierr = MatSetValues_MPIBAIJ(A,bs,rvals,1,&col,a,INSERT_VALUES);CHKERRQ(ierr); 701 col++; a += bs; 702 } 703 } 704 } 705 ierr = PetscFree(rvals);CHKERRQ(ierr); 706 ierr = MatAssemblyBegin(A,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 707 ierr = MatAssemblyEnd(A,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 708 /* 709 Everyone has to call to draw the matrix since the graphics waits are 710 synchronized across all processors that share the PetscDraw object 711 */ 712 ierr = PetscViewerGetSingleton(viewer,&sviewer);CHKERRQ(ierr); 713 if (!rank) { 714 ierr = PetscObjectSetName((PetscObject)((Mat_MPISBAIJ*)(A->data))->A,((PetscObject)mat)->name);CHKERRQ(ierr); 715 /* Set the type name to MATMPISBAIJ so that the correct type can be printed out by PetscObjectPrintClassNamePrefixType() in MatView_SeqSBAIJ_ASCII()*/ 716 PetscStrcpy(((PetscObject)((Mat_MPISBAIJ*)(A->data))->A)->type_name,MATMPISBAIJ); 717 ierr = MatView(((Mat_MPISBAIJ*)(A->data))->A,sviewer);CHKERRQ(ierr); 718 } 719 ierr = PetscViewerRestoreSingleton(viewer,&sviewer);CHKERRQ(ierr); 720 ierr = MatDestroy(&A);CHKERRQ(ierr); 721 } 722 PetscFunctionReturn(0); 723 } 724 725 #undef __FUNCT__ 726 #define __FUNCT__ "MatView_MPISBAIJ" 727 PetscErrorCode MatView_MPISBAIJ(Mat mat,PetscViewer viewer) 728 { 729 PetscErrorCode ierr; 730 PetscBool iascii,isdraw,issocket,isbinary; 731 732 PetscFunctionBegin; 733 ierr = PetscObjectTypeCompare((PetscObject)viewer,PETSCVIEWERASCII,&iascii);CHKERRQ(ierr); 734 ierr = PetscObjectTypeCompare((PetscObject)viewer,PETSCVIEWERDRAW,&isdraw);CHKERRQ(ierr); 735 ierr = PetscObjectTypeCompare((PetscObject)viewer,PETSCVIEWERSOCKET,&issocket);CHKERRQ(ierr); 736 ierr = PetscObjectTypeCompare((PetscObject)viewer,PETSCVIEWERBINARY,&isbinary);CHKERRQ(ierr); 737 if (iascii || isdraw || issocket || isbinary) { 738 ierr = MatView_MPISBAIJ_ASCIIorDraworSocket(mat,viewer);CHKERRQ(ierr); 739 } else { 740 SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_SUP,"Viewer type %s not supported by MPISBAIJ matrices",((PetscObject)viewer)->type_name); 741 } 742 PetscFunctionReturn(0); 743 } 744 745 #undef __FUNCT__ 746 #define __FUNCT__ "MatDestroy_MPISBAIJ" 747 PetscErrorCode MatDestroy_MPISBAIJ(Mat mat) 748 { 749 Mat_MPISBAIJ *baij = (Mat_MPISBAIJ*)mat->data; 750 PetscErrorCode ierr; 751 752 PetscFunctionBegin; 753 #if defined(PETSC_USE_LOG) 754 PetscLogObjectState((PetscObject)mat,"Rows=%D,Cols=%D",mat->rmap->N,mat->cmap->N); 755 #endif 756 ierr = MatStashDestroy_Private(&mat->stash);CHKERRQ(ierr); 757 ierr = MatStashDestroy_Private(&mat->bstash);CHKERRQ(ierr); 758 ierr = MatDestroy(&baij->A);CHKERRQ(ierr); 759 ierr = MatDestroy(&baij->B);CHKERRQ(ierr); 760 #if defined (PETSC_USE_CTABLE) 761 ierr = PetscTableDestroy(&baij->colmap);CHKERRQ(ierr); 762 #else 763 ierr = PetscFree(baij->colmap);CHKERRQ(ierr); 764 #endif 765 ierr = PetscFree(baij->garray);CHKERRQ(ierr); 766 ierr = VecDestroy(&baij->lvec);CHKERRQ(ierr); 767 ierr = VecScatterDestroy(&baij->Mvctx);CHKERRQ(ierr); 768 ierr = VecDestroy(&baij->slvec0);CHKERRQ(ierr); 769 ierr = VecDestroy(&baij->slvec0b);CHKERRQ(ierr); 770 ierr = VecDestroy(&baij->slvec1);CHKERRQ(ierr); 771 ierr = VecDestroy(&baij->slvec1a);CHKERRQ(ierr); 772 ierr = VecDestroy(&baij->slvec1b);CHKERRQ(ierr); 773 ierr = VecScatterDestroy(&baij->sMvctx);CHKERRQ(ierr); 774 ierr = PetscFree2(baij->rowvalues,baij->rowindices);CHKERRQ(ierr); 775 ierr = PetscFree(baij->barray);CHKERRQ(ierr); 776 ierr = PetscFree(baij->hd);CHKERRQ(ierr); 777 ierr = VecDestroy(&baij->diag);CHKERRQ(ierr); 778 ierr = VecDestroy(&baij->bb1);CHKERRQ(ierr); 779 ierr = VecDestroy(&baij->xx1);CHKERRQ(ierr); 780 #if defined(PETSC_USE_REAL_MAT_SINGLE) 781 ierr = PetscFree(baij->setvaluescopy);CHKERRQ(ierr); 782 #endif 783 ierr = PetscFree(baij->in_loc);CHKERRQ(ierr); 784 ierr = PetscFree(baij->v_loc);CHKERRQ(ierr); 785 ierr = PetscFree(baij->rangebs);CHKERRQ(ierr); 786 ierr = PetscFree(mat->data);CHKERRQ(ierr); 787 788 ierr = PetscObjectChangeTypeName((PetscObject)mat,0);CHKERRQ(ierr); 789 ierr = PetscObjectComposeFunction((PetscObject)mat,"MatStoreValues_C","",PETSC_NULL);CHKERRQ(ierr); 790 ierr = PetscObjectComposeFunction((PetscObject)mat,"MatRetrieveValues_C","",PETSC_NULL);CHKERRQ(ierr); 791 ierr = PetscObjectComposeFunction((PetscObject)mat,"MatGetDiagonalBlock_C","",PETSC_NULL);CHKERRQ(ierr); 792 ierr = PetscObjectComposeFunction((PetscObject)mat,"MatMPISBAIJSetPreallocation_C","",PETSC_NULL);CHKERRQ(ierr); 793 ierr = PetscObjectComposeFunction((PetscObject)mat,"MatConvert_mpisbaij_mpisbstrm_C","",PETSC_NULL);CHKERRQ(ierr); 794 PetscFunctionReturn(0); 795 } 796 797 #undef __FUNCT__ 798 #define __FUNCT__ "MatMult_MPISBAIJ_Hermitian" 799 PetscErrorCode MatMult_MPISBAIJ_Hermitian(Mat A,Vec xx,Vec yy) 800 { 801 Mat_MPISBAIJ *a = (Mat_MPISBAIJ*)A->data; 802 PetscErrorCode ierr; 803 PetscInt nt,mbs=a->mbs,bs=A->rmap->bs; 804 PetscScalar *x,*from; 805 806 PetscFunctionBegin; 807 ierr = VecGetLocalSize(xx,&nt);CHKERRQ(ierr); 808 if (nt != A->cmap->n) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_SIZ,"Incompatible partition of A and xx"); 809 810 /* diagonal part */ 811 ierr = (*a->A->ops->mult)(a->A,xx,a->slvec1a);CHKERRQ(ierr); 812 ierr = VecSet(a->slvec1b,0.0);CHKERRQ(ierr); 813 814 /* subdiagonal part */ 815 ierr = (*a->B->ops->multhermitiantranspose)(a->B,xx,a->slvec0b);CHKERRQ(ierr); 816 817 /* copy x into the vec slvec0 */ 818 ierr = VecGetArray(a->slvec0,&from);CHKERRQ(ierr); 819 ierr = VecGetArray(xx,&x);CHKERRQ(ierr); 820 821 ierr = PetscMemcpy(from,x,bs*mbs*sizeof(MatScalar));CHKERRQ(ierr); 822 ierr = VecRestoreArray(a->slvec0,&from);CHKERRQ(ierr); 823 ierr = VecRestoreArray(xx,&x);CHKERRQ(ierr); 824 825 ierr = VecScatterBegin(a->sMvctx,a->slvec0,a->slvec1,ADD_VALUES,SCATTER_FORWARD);CHKERRQ(ierr); 826 ierr = VecScatterEnd(a->sMvctx,a->slvec0,a->slvec1,ADD_VALUES,SCATTER_FORWARD);CHKERRQ(ierr); 827 /* supperdiagonal part */ 828 ierr = (*a->B->ops->multadd)(a->B,a->slvec1b,a->slvec1a,yy);CHKERRQ(ierr); 829 PetscFunctionReturn(0); 830 } 831 832 #undef __FUNCT__ 833 #define __FUNCT__ "MatMult_MPISBAIJ" 834 PetscErrorCode MatMult_MPISBAIJ(Mat A,Vec xx,Vec yy) 835 { 836 Mat_MPISBAIJ *a = (Mat_MPISBAIJ*)A->data; 837 PetscErrorCode ierr; 838 PetscInt nt,mbs=a->mbs,bs=A->rmap->bs; 839 PetscScalar *x,*from; 840 841 PetscFunctionBegin; 842 ierr = VecGetLocalSize(xx,&nt);CHKERRQ(ierr); 843 if (nt != A->cmap->n) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_SIZ,"Incompatible partition of A and xx"); 844 845 /* diagonal part */ 846 ierr = (*a->A->ops->mult)(a->A,xx,a->slvec1a);CHKERRQ(ierr); 847 ierr = VecSet(a->slvec1b,0.0);CHKERRQ(ierr); 848 849 /* subdiagonal part */ 850 ierr = (*a->B->ops->multtranspose)(a->B,xx,a->slvec0b);CHKERRQ(ierr); 851 852 /* copy x into the vec slvec0 */ 853 ierr = VecGetArray(a->slvec0,&from);CHKERRQ(ierr); 854 ierr = VecGetArray(xx,&x);CHKERRQ(ierr); 855 856 ierr = PetscMemcpy(from,x,bs*mbs*sizeof(MatScalar));CHKERRQ(ierr); 857 ierr = VecRestoreArray(a->slvec0,&from);CHKERRQ(ierr); 858 ierr = VecRestoreArray(xx,&x);CHKERRQ(ierr); 859 860 ierr = VecScatterBegin(a->sMvctx,a->slvec0,a->slvec1,ADD_VALUES,SCATTER_FORWARD);CHKERRQ(ierr); 861 ierr = VecScatterEnd(a->sMvctx,a->slvec0,a->slvec1,ADD_VALUES,SCATTER_FORWARD);CHKERRQ(ierr); 862 /* supperdiagonal part */ 863 ierr = (*a->B->ops->multadd)(a->B,a->slvec1b,a->slvec1a,yy);CHKERRQ(ierr); 864 PetscFunctionReturn(0); 865 } 866 867 #undef __FUNCT__ 868 #define __FUNCT__ "MatMult_MPISBAIJ_2comm" 869 PetscErrorCode MatMult_MPISBAIJ_2comm(Mat A,Vec xx,Vec yy) 870 { 871 Mat_MPISBAIJ *a = (Mat_MPISBAIJ*)A->data; 872 PetscErrorCode ierr; 873 PetscInt nt; 874 875 PetscFunctionBegin; 876 ierr = VecGetLocalSize(xx,&nt);CHKERRQ(ierr); 877 if (nt != A->cmap->n) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_SIZ,"Incompatible partition of A and xx"); 878 879 ierr = VecGetLocalSize(yy,&nt);CHKERRQ(ierr); 880 if (nt != A->rmap->N) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_SIZ,"Incompatible parition of A and yy"); 881 882 ierr = VecScatterBegin(a->Mvctx,xx,a->lvec,INSERT_VALUES,SCATTER_FORWARD);CHKERRQ(ierr); 883 /* do diagonal part */ 884 ierr = (*a->A->ops->mult)(a->A,xx,yy);CHKERRQ(ierr); 885 /* do supperdiagonal part */ 886 ierr = VecScatterEnd(a->Mvctx,xx,a->lvec,INSERT_VALUES,SCATTER_FORWARD);CHKERRQ(ierr); 887 ierr = (*a->B->ops->multadd)(a->B,a->lvec,yy,yy);CHKERRQ(ierr); 888 /* do subdiagonal part */ 889 ierr = (*a->B->ops->multtranspose)(a->B,xx,a->lvec);CHKERRQ(ierr); 890 ierr = VecScatterBegin(a->Mvctx,a->lvec,yy,ADD_VALUES,SCATTER_REVERSE);CHKERRQ(ierr); 891 ierr = VecScatterEnd(a->Mvctx,a->lvec,yy,ADD_VALUES,SCATTER_REVERSE);CHKERRQ(ierr); 892 893 PetscFunctionReturn(0); 894 } 895 896 #undef __FUNCT__ 897 #define __FUNCT__ "MatMultAdd_MPISBAIJ" 898 PetscErrorCode MatMultAdd_MPISBAIJ(Mat A,Vec xx,Vec yy,Vec zz) 899 { 900 Mat_MPISBAIJ *a = (Mat_MPISBAIJ*)A->data; 901 PetscErrorCode ierr; 902 PetscInt mbs=a->mbs,bs=A->rmap->bs; 903 PetscScalar *x,*from,zero=0.0; 904 905 PetscFunctionBegin; 906 /* 907 PetscSynchronizedPrintf(((PetscObject)A)->comm," MatMultAdd is called ...\n"); 908 PetscSynchronizedFlush(((PetscObject)A)->comm); 909 */ 910 /* diagonal part */ 911 ierr = (*a->A->ops->multadd)(a->A,xx,yy,a->slvec1a);CHKERRQ(ierr); 912 ierr = VecSet(a->slvec1b,zero);CHKERRQ(ierr); 913 914 /* subdiagonal part */ 915 ierr = (*a->B->ops->multtranspose)(a->B,xx,a->slvec0b);CHKERRQ(ierr); 916 917 /* copy x into the vec slvec0 */ 918 ierr = VecGetArray(a->slvec0,&from);CHKERRQ(ierr); 919 ierr = VecGetArray(xx,&x);CHKERRQ(ierr); 920 ierr = PetscMemcpy(from,x,bs*mbs*sizeof(MatScalar));CHKERRQ(ierr); 921 ierr = VecRestoreArray(a->slvec0,&from);CHKERRQ(ierr); 922 923 ierr = VecScatterBegin(a->sMvctx,a->slvec0,a->slvec1,ADD_VALUES,SCATTER_FORWARD);CHKERRQ(ierr); 924 ierr = VecRestoreArray(xx,&x);CHKERRQ(ierr); 925 ierr = VecScatterEnd(a->sMvctx,a->slvec0,a->slvec1,ADD_VALUES,SCATTER_FORWARD);CHKERRQ(ierr); 926 927 /* supperdiagonal part */ 928 ierr = (*a->B->ops->multadd)(a->B,a->slvec1b,a->slvec1a,zz);CHKERRQ(ierr); 929 930 PetscFunctionReturn(0); 931 } 932 933 #undef __FUNCT__ 934 #define __FUNCT__ "MatMultAdd_MPISBAIJ_2comm" 935 PetscErrorCode MatMultAdd_MPISBAIJ_2comm(Mat A,Vec xx,Vec yy,Vec zz) 936 { 937 Mat_MPISBAIJ *a = (Mat_MPISBAIJ*)A->data; 938 PetscErrorCode ierr; 939 940 PetscFunctionBegin; 941 ierr = VecScatterBegin(a->Mvctx,xx,a->lvec,INSERT_VALUES,SCATTER_FORWARD);CHKERRQ(ierr); 942 /* do diagonal part */ 943 ierr = (*a->A->ops->multadd)(a->A,xx,yy,zz);CHKERRQ(ierr); 944 /* do supperdiagonal part */ 945 ierr = VecScatterEnd(a->Mvctx,xx,a->lvec,INSERT_VALUES,SCATTER_FORWARD);CHKERRQ(ierr); 946 ierr = (*a->B->ops->multadd)(a->B,a->lvec,zz,zz);CHKERRQ(ierr); 947 948 /* do subdiagonal part */ 949 ierr = (*a->B->ops->multtranspose)(a->B,xx,a->lvec);CHKERRQ(ierr); 950 ierr = VecScatterBegin(a->Mvctx,a->lvec,zz,ADD_VALUES,SCATTER_REVERSE);CHKERRQ(ierr); 951 ierr = VecScatterEnd(a->Mvctx,a->lvec,zz,ADD_VALUES,SCATTER_REVERSE);CHKERRQ(ierr); 952 953 PetscFunctionReturn(0); 954 } 955 956 /* 957 This only works correctly for square matrices where the subblock A->A is the 958 diagonal block 959 */ 960 #undef __FUNCT__ 961 #define __FUNCT__ "MatGetDiagonal_MPISBAIJ" 962 PetscErrorCode MatGetDiagonal_MPISBAIJ(Mat A,Vec v) 963 { 964 Mat_MPISBAIJ *a = (Mat_MPISBAIJ*)A->data; 965 PetscErrorCode ierr; 966 967 PetscFunctionBegin; 968 /* if (a->rmap->N != a->cmap->N) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_SUP,"Supports only square matrix where A->A is diag block"); */ 969 ierr = MatGetDiagonal(a->A,v);CHKERRQ(ierr); 970 PetscFunctionReturn(0); 971 } 972 973 #undef __FUNCT__ 974 #define __FUNCT__ "MatScale_MPISBAIJ" 975 PetscErrorCode MatScale_MPISBAIJ(Mat A,PetscScalar aa) 976 { 977 Mat_MPISBAIJ *a = (Mat_MPISBAIJ*)A->data; 978 PetscErrorCode ierr; 979 980 PetscFunctionBegin; 981 ierr = MatScale(a->A,aa);CHKERRQ(ierr); 982 ierr = MatScale(a->B,aa);CHKERRQ(ierr); 983 PetscFunctionReturn(0); 984 } 985 986 #undef __FUNCT__ 987 #define __FUNCT__ "MatGetRow_MPISBAIJ" 988 PetscErrorCode MatGetRow_MPISBAIJ(Mat matin,PetscInt row,PetscInt *nz,PetscInt **idx,PetscScalar **v) 989 { 990 Mat_MPISBAIJ *mat = (Mat_MPISBAIJ*)matin->data; 991 PetscScalar *vworkA,*vworkB,**pvA,**pvB,*v_p; 992 PetscErrorCode ierr; 993 PetscInt bs = matin->rmap->bs,bs2 = mat->bs2,i,*cworkA,*cworkB,**pcA,**pcB; 994 PetscInt nztot,nzA,nzB,lrow,brstart = matin->rmap->rstart,brend = matin->rmap->rend; 995 PetscInt *cmap,*idx_p,cstart = mat->rstartbs; 996 997 PetscFunctionBegin; 998 if (mat->getrowactive) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_WRONGSTATE,"Already active"); 999 mat->getrowactive = PETSC_TRUE; 1000 1001 if (!mat->rowvalues && (idx || v)) { 1002 /* 1003 allocate enough space to hold information from the longest row. 1004 */ 1005 Mat_SeqSBAIJ *Aa = (Mat_SeqSBAIJ*)mat->A->data; 1006 Mat_SeqBAIJ *Ba = (Mat_SeqBAIJ*)mat->B->data; 1007 PetscInt max = 1,mbs = mat->mbs,tmp; 1008 for (i=0; i<mbs; i++) { 1009 tmp = Aa->i[i+1] - Aa->i[i] + Ba->i[i+1] - Ba->i[i]; /* row length */ 1010 if (max < tmp) { max = tmp; } 1011 } 1012 ierr = PetscMalloc2(max*bs2,PetscScalar,&mat->rowvalues,max*bs2,PetscInt,&mat->rowindices);CHKERRQ(ierr); 1013 } 1014 1015 if (row < brstart || row >= brend) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_SUP,"Only local rows"); 1016 lrow = row - brstart; /* local row index */ 1017 1018 pvA = &vworkA; pcA = &cworkA; pvB = &vworkB; pcB = &cworkB; 1019 if (!v) {pvA = 0; pvB = 0;} 1020 if (!idx) {pcA = 0; if (!v) pcB = 0;} 1021 ierr = (*mat->A->ops->getrow)(mat->A,lrow,&nzA,pcA,pvA);CHKERRQ(ierr); 1022 ierr = (*mat->B->ops->getrow)(mat->B,lrow,&nzB,pcB,pvB);CHKERRQ(ierr); 1023 nztot = nzA + nzB; 1024 1025 cmap = mat->garray; 1026 if (v || idx) { 1027 if (nztot) { 1028 /* Sort by increasing column numbers, assuming A and B already sorted */ 1029 PetscInt imark = -1; 1030 if (v) { 1031 *v = v_p = mat->rowvalues; 1032 for (i=0; i<nzB; i++) { 1033 if (cmap[cworkB[i]/bs] < cstart) v_p[i] = vworkB[i]; 1034 else break; 1035 } 1036 imark = i; 1037 for (i=0; i<nzA; i++) v_p[imark+i] = vworkA[i]; 1038 for (i=imark; i<nzB; i++) v_p[nzA+i] = vworkB[i]; 1039 } 1040 if (idx) { 1041 *idx = idx_p = mat->rowindices; 1042 if (imark > -1) { 1043 for (i=0; i<imark; i++) { 1044 idx_p[i] = cmap[cworkB[i]/bs]*bs + cworkB[i]%bs; 1045 } 1046 } else { 1047 for (i=0; i<nzB; i++) { 1048 if (cmap[cworkB[i]/bs] < cstart) 1049 idx_p[i] = cmap[cworkB[i]/bs]*bs + cworkB[i]%bs ; 1050 else break; 1051 } 1052 imark = i; 1053 } 1054 for (i=0; i<nzA; i++) idx_p[imark+i] = cstart*bs + cworkA[i]; 1055 for (i=imark; i<nzB; i++) idx_p[nzA+i] = cmap[cworkB[i]/bs]*bs + cworkB[i]%bs ; 1056 } 1057 } else { 1058 if (idx) *idx = 0; 1059 if (v) *v = 0; 1060 } 1061 } 1062 *nz = nztot; 1063 ierr = (*mat->A->ops->restorerow)(mat->A,lrow,&nzA,pcA,pvA);CHKERRQ(ierr); 1064 ierr = (*mat->B->ops->restorerow)(mat->B,lrow,&nzB,pcB,pvB);CHKERRQ(ierr); 1065 PetscFunctionReturn(0); 1066 } 1067 1068 #undef __FUNCT__ 1069 #define __FUNCT__ "MatRestoreRow_MPISBAIJ" 1070 PetscErrorCode MatRestoreRow_MPISBAIJ(Mat mat,PetscInt row,PetscInt *nz,PetscInt **idx,PetscScalar **v) 1071 { 1072 Mat_MPISBAIJ *baij = (Mat_MPISBAIJ*)mat->data; 1073 1074 PetscFunctionBegin; 1075 if (!baij->getrowactive) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_WRONGSTATE,"MatGetRow() must be called first"); 1076 baij->getrowactive = PETSC_FALSE; 1077 PetscFunctionReturn(0); 1078 } 1079 1080 #undef __FUNCT__ 1081 #define __FUNCT__ "MatGetRowUpperTriangular_MPISBAIJ" 1082 PetscErrorCode MatGetRowUpperTriangular_MPISBAIJ(Mat A) 1083 { 1084 Mat_MPISBAIJ *a = (Mat_MPISBAIJ*)A->data; 1085 Mat_SeqSBAIJ *aA = (Mat_SeqSBAIJ*)a->A->data; 1086 1087 PetscFunctionBegin; 1088 aA->getrow_utriangular = PETSC_TRUE; 1089 PetscFunctionReturn(0); 1090 } 1091 #undef __FUNCT__ 1092 #define __FUNCT__ "MatRestoreRowUpperTriangular_MPISBAIJ" 1093 PetscErrorCode MatRestoreRowUpperTriangular_MPISBAIJ(Mat A) 1094 { 1095 Mat_MPISBAIJ *a = (Mat_MPISBAIJ*)A->data; 1096 Mat_SeqSBAIJ *aA = (Mat_SeqSBAIJ*)a->A->data; 1097 1098 PetscFunctionBegin; 1099 aA->getrow_utriangular = PETSC_FALSE; 1100 PetscFunctionReturn(0); 1101 } 1102 1103 #undef __FUNCT__ 1104 #define __FUNCT__ "MatRealPart_MPISBAIJ" 1105 PetscErrorCode MatRealPart_MPISBAIJ(Mat A) 1106 { 1107 Mat_MPISBAIJ *a = (Mat_MPISBAIJ*)A->data; 1108 PetscErrorCode ierr; 1109 1110 PetscFunctionBegin; 1111 ierr = MatRealPart(a->A);CHKERRQ(ierr); 1112 ierr = MatRealPart(a->B);CHKERRQ(ierr); 1113 PetscFunctionReturn(0); 1114 } 1115 1116 #undef __FUNCT__ 1117 #define __FUNCT__ "MatImaginaryPart_MPISBAIJ" 1118 PetscErrorCode MatImaginaryPart_MPISBAIJ(Mat A) 1119 { 1120 Mat_MPISBAIJ *a = (Mat_MPISBAIJ*)A->data; 1121 PetscErrorCode ierr; 1122 1123 PetscFunctionBegin; 1124 ierr = MatImaginaryPart(a->A);CHKERRQ(ierr); 1125 ierr = MatImaginaryPart(a->B);CHKERRQ(ierr); 1126 PetscFunctionReturn(0); 1127 } 1128 1129 #undef __FUNCT__ 1130 #define __FUNCT__ "MatZeroEntries_MPISBAIJ" 1131 PetscErrorCode MatZeroEntries_MPISBAIJ(Mat A) 1132 { 1133 Mat_MPISBAIJ *l = (Mat_MPISBAIJ*)A->data; 1134 PetscErrorCode ierr; 1135 1136 PetscFunctionBegin; 1137 ierr = MatZeroEntries(l->A);CHKERRQ(ierr); 1138 ierr = MatZeroEntries(l->B);CHKERRQ(ierr); 1139 PetscFunctionReturn(0); 1140 } 1141 1142 #undef __FUNCT__ 1143 #define __FUNCT__ "MatGetInfo_MPISBAIJ" 1144 PetscErrorCode MatGetInfo_MPISBAIJ(Mat matin,MatInfoType flag,MatInfo *info) 1145 { 1146 Mat_MPISBAIJ *a = (Mat_MPISBAIJ*)matin->data; 1147 Mat A = a->A,B = a->B; 1148 PetscErrorCode ierr; 1149 PetscReal isend[5],irecv[5]; 1150 1151 PetscFunctionBegin; 1152 info->block_size = (PetscReal)matin->rmap->bs; 1153 ierr = MatGetInfo(A,MAT_LOCAL,info);CHKERRQ(ierr); 1154 isend[0] = info->nz_used; isend[1] = info->nz_allocated; isend[2] = info->nz_unneeded; 1155 isend[3] = info->memory; isend[4] = info->mallocs; 1156 ierr = MatGetInfo(B,MAT_LOCAL,info);CHKERRQ(ierr); 1157 isend[0] += info->nz_used; isend[1] += info->nz_allocated; isend[2] += info->nz_unneeded; 1158 isend[3] += info->memory; isend[4] += info->mallocs; 1159 if (flag == MAT_LOCAL) { 1160 info->nz_used = isend[0]; 1161 info->nz_allocated = isend[1]; 1162 info->nz_unneeded = isend[2]; 1163 info->memory = isend[3]; 1164 info->mallocs = isend[4]; 1165 } else if (flag == MAT_GLOBAL_MAX) { 1166 ierr = MPI_Allreduce(isend,irecv,5,MPIU_REAL,MPIU_MAX,((PetscObject)matin)->comm);CHKERRQ(ierr); 1167 info->nz_used = irecv[0]; 1168 info->nz_allocated = irecv[1]; 1169 info->nz_unneeded = irecv[2]; 1170 info->memory = irecv[3]; 1171 info->mallocs = irecv[4]; 1172 } else if (flag == MAT_GLOBAL_SUM) { 1173 ierr = MPI_Allreduce(isend,irecv,5,MPIU_REAL,MPIU_SUM,((PetscObject)matin)->comm);CHKERRQ(ierr); 1174 info->nz_used = irecv[0]; 1175 info->nz_allocated = irecv[1]; 1176 info->nz_unneeded = irecv[2]; 1177 info->memory = irecv[3]; 1178 info->mallocs = irecv[4]; 1179 } else { 1180 SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_ARG_WRONG,"Unknown MatInfoType argument %d",(int)flag); 1181 } 1182 info->fill_ratio_given = 0; /* no parallel LU/ILU/Cholesky */ 1183 info->fill_ratio_needed = 0; 1184 info->factor_mallocs = 0; 1185 PetscFunctionReturn(0); 1186 } 1187 1188 #undef __FUNCT__ 1189 #define __FUNCT__ "MatSetOption_MPISBAIJ" 1190 PetscErrorCode MatSetOption_MPISBAIJ(Mat A,MatOption op,PetscBool flg) 1191 { 1192 Mat_MPISBAIJ *a = (Mat_MPISBAIJ*)A->data; 1193 Mat_SeqSBAIJ *aA = (Mat_SeqSBAIJ*)a->A->data; 1194 PetscErrorCode ierr; 1195 1196 PetscFunctionBegin; 1197 switch (op) { 1198 case MAT_NEW_NONZERO_LOCATIONS: 1199 case MAT_NEW_NONZERO_ALLOCATION_ERR: 1200 case MAT_UNUSED_NONZERO_LOCATION_ERR: 1201 case MAT_KEEP_NONZERO_PATTERN: 1202 case MAT_NEW_NONZERO_LOCATION_ERR: 1203 ierr = MatSetOption(a->A,op,flg);CHKERRQ(ierr); 1204 ierr = MatSetOption(a->B,op,flg);CHKERRQ(ierr); 1205 break; 1206 case MAT_ROW_ORIENTED: 1207 a->roworiented = flg; 1208 ierr = MatSetOption(a->A,op,flg);CHKERRQ(ierr); 1209 ierr = MatSetOption(a->B,op,flg);CHKERRQ(ierr); 1210 break; 1211 case MAT_NEW_DIAGONALS: 1212 ierr = PetscInfo1(A,"Option %s ignored\n",MatOptions[op]);CHKERRQ(ierr); 1213 break; 1214 case MAT_IGNORE_OFF_PROC_ENTRIES: 1215 a->donotstash = flg; 1216 break; 1217 case MAT_USE_HASH_TABLE: 1218 a->ht_flag = flg; 1219 break; 1220 case MAT_HERMITIAN: 1221 if (!A->assembled) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_WRONGSTATE,"Must call MatAssemblyEnd() first"); 1222 ierr = MatSetOption(a->A,op,flg);CHKERRQ(ierr); 1223 A->ops->mult = MatMult_MPISBAIJ_Hermitian; 1224 break; 1225 case MAT_SPD: 1226 A->spd_set = PETSC_TRUE; 1227 A->spd = flg; 1228 if (flg) { 1229 A->symmetric = PETSC_TRUE; 1230 A->structurally_symmetric = PETSC_TRUE; 1231 A->symmetric_set = PETSC_TRUE; 1232 A->structurally_symmetric_set = PETSC_TRUE; 1233 } 1234 break; 1235 case MAT_SYMMETRIC: 1236 ierr = MatSetOption(a->A,op,flg);CHKERRQ(ierr); 1237 break; 1238 case MAT_STRUCTURALLY_SYMMETRIC: 1239 ierr = MatSetOption(a->A,op,flg);CHKERRQ(ierr); 1240 break; 1241 case MAT_SYMMETRY_ETERNAL: 1242 if (!flg) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_SUP,"Matrix must be symmetric"); 1243 ierr = PetscInfo1(A,"Option %s ignored\n",MatOptions[op]);CHKERRQ(ierr); 1244 break; 1245 case MAT_IGNORE_LOWER_TRIANGULAR: 1246 aA->ignore_ltriangular = flg; 1247 break; 1248 case MAT_ERROR_LOWER_TRIANGULAR: 1249 aA->ignore_ltriangular = flg; 1250 break; 1251 case MAT_GETROW_UPPERTRIANGULAR: 1252 aA->getrow_utriangular = flg; 1253 break; 1254 default: 1255 SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_SUP,"unknown option %d",op); 1256 } 1257 PetscFunctionReturn(0); 1258 } 1259 1260 #undef __FUNCT__ 1261 #define __FUNCT__ "MatTranspose_MPISBAIJ" 1262 PetscErrorCode MatTranspose_MPISBAIJ(Mat A,MatReuse reuse,Mat *B) 1263 { 1264 PetscErrorCode ierr; 1265 PetscFunctionBegin; 1266 if (MAT_INITIAL_MATRIX || *B != A) { 1267 ierr = MatDuplicate(A,MAT_COPY_VALUES,B);CHKERRQ(ierr); 1268 } 1269 PetscFunctionReturn(0); 1270 } 1271 1272 #undef __FUNCT__ 1273 #define __FUNCT__ "MatDiagonalScale_MPISBAIJ" 1274 PetscErrorCode MatDiagonalScale_MPISBAIJ(Mat mat,Vec ll,Vec rr) 1275 { 1276 Mat_MPISBAIJ *baij = (Mat_MPISBAIJ*)mat->data; 1277 Mat a=baij->A, b=baij->B; 1278 PetscErrorCode ierr; 1279 PetscInt nv,m,n; 1280 PetscBool flg; 1281 1282 PetscFunctionBegin; 1283 if (ll != rr){ 1284 ierr = VecEqual(ll,rr,&flg);CHKERRQ(ierr); 1285 if (!flg) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"For symmetric format, left and right scaling vectors must be same\n"); 1286 } 1287 if (!ll) PetscFunctionReturn(0); 1288 1289 ierr = MatGetLocalSize(mat,&m,&n);CHKERRQ(ierr); 1290 if (m != n) SETERRQ2(PETSC_COMM_SELF,PETSC_ERR_ARG_SIZ,"For symmetric format, local size %d %d must be same",m,n); 1291 1292 ierr = VecGetLocalSize(rr,&nv);CHKERRQ(ierr); 1293 if (nv!=n) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_SIZ,"Left and right vector non-conforming local size"); 1294 1295 ierr = VecScatterBegin(baij->Mvctx,rr,baij->lvec,INSERT_VALUES,SCATTER_FORWARD);CHKERRQ(ierr); 1296 1297 /* left diagonalscale the off-diagonal part */ 1298 ierr = (*b->ops->diagonalscale)(b,ll,PETSC_NULL);CHKERRQ(ierr); 1299 1300 /* scale the diagonal part */ 1301 ierr = (*a->ops->diagonalscale)(a,ll,rr);CHKERRQ(ierr); 1302 1303 /* right diagonalscale the off-diagonal part */ 1304 ierr = VecScatterEnd(baij->Mvctx,rr,baij->lvec,INSERT_VALUES,SCATTER_FORWARD);CHKERRQ(ierr); 1305 ierr = (*b->ops->diagonalscale)(b,PETSC_NULL,baij->lvec);CHKERRQ(ierr); 1306 PetscFunctionReturn(0); 1307 } 1308 1309 #undef __FUNCT__ 1310 #define __FUNCT__ "MatSetUnfactored_MPISBAIJ" 1311 PetscErrorCode MatSetUnfactored_MPISBAIJ(Mat A) 1312 { 1313 Mat_MPISBAIJ *a = (Mat_MPISBAIJ*)A->data; 1314 PetscErrorCode ierr; 1315 1316 PetscFunctionBegin; 1317 ierr = MatSetUnfactored(a->A);CHKERRQ(ierr); 1318 PetscFunctionReturn(0); 1319 } 1320 1321 static PetscErrorCode MatDuplicate_MPISBAIJ(Mat,MatDuplicateOption,Mat *); 1322 1323 #undef __FUNCT__ 1324 #define __FUNCT__ "MatEqual_MPISBAIJ" 1325 PetscErrorCode MatEqual_MPISBAIJ(Mat A,Mat B,PetscBool *flag) 1326 { 1327 Mat_MPISBAIJ *matB = (Mat_MPISBAIJ*)B->data,*matA = (Mat_MPISBAIJ*)A->data; 1328 Mat a,b,c,d; 1329 PetscBool flg; 1330 PetscErrorCode ierr; 1331 1332 PetscFunctionBegin; 1333 a = matA->A; b = matA->B; 1334 c = matB->A; d = matB->B; 1335 1336 ierr = MatEqual(a,c,&flg);CHKERRQ(ierr); 1337 if (flg) { 1338 ierr = MatEqual(b,d,&flg);CHKERRQ(ierr); 1339 } 1340 ierr = MPI_Allreduce(&flg,flag,1,MPI_INT,MPI_LAND,((PetscObject)A)->comm);CHKERRQ(ierr); 1341 PetscFunctionReturn(0); 1342 } 1343 1344 #undef __FUNCT__ 1345 #define __FUNCT__ "MatCopy_MPISBAIJ" 1346 PetscErrorCode MatCopy_MPISBAIJ(Mat A,Mat B,MatStructure str) 1347 { 1348 PetscErrorCode ierr; 1349 Mat_MPISBAIJ *a = (Mat_MPISBAIJ *)A->data; 1350 Mat_MPISBAIJ *b = (Mat_MPISBAIJ *)B->data; 1351 1352 PetscFunctionBegin; 1353 /* If the two matrices don't have the same copy implementation, they aren't compatible for fast copy. */ 1354 if ((str != SAME_NONZERO_PATTERN) || (A->ops->copy != B->ops->copy)) { 1355 ierr = MatGetRowUpperTriangular(A);CHKERRQ(ierr); 1356 ierr = MatCopy_Basic(A,B,str);CHKERRQ(ierr); 1357 ierr = MatRestoreRowUpperTriangular(A);CHKERRQ(ierr); 1358 } else { 1359 ierr = MatCopy(a->A,b->A,str);CHKERRQ(ierr); 1360 ierr = MatCopy(a->B,b->B,str);CHKERRQ(ierr); 1361 } 1362 PetscFunctionReturn(0); 1363 } 1364 1365 #undef __FUNCT__ 1366 #define __FUNCT__ "MatSetUp_MPISBAIJ" 1367 PetscErrorCode MatSetUp_MPISBAIJ(Mat A) 1368 { 1369 PetscErrorCode ierr; 1370 1371 PetscFunctionBegin; 1372 ierr = MatMPISBAIJSetPreallocation(A,A->rmap->bs,PETSC_DEFAULT,0,PETSC_DEFAULT,0);CHKERRQ(ierr); 1373 PetscFunctionReturn(0); 1374 } 1375 1376 #undef __FUNCT__ 1377 #define __FUNCT__ "MatAXPY_MPISBAIJ" 1378 PetscErrorCode MatAXPY_MPISBAIJ(Mat Y,PetscScalar a,Mat X,MatStructure str) 1379 { 1380 PetscErrorCode ierr; 1381 Mat_MPISBAIJ *xx=(Mat_MPISBAIJ *)X->data,*yy=(Mat_MPISBAIJ *)Y->data; 1382 PetscBLASInt bnz,one=1; 1383 Mat_SeqSBAIJ *xa,*ya; 1384 Mat_SeqBAIJ *xb,*yb; 1385 1386 PetscFunctionBegin; 1387 if (str == SAME_NONZERO_PATTERN) { 1388 PetscScalar alpha = a; 1389 xa = (Mat_SeqSBAIJ *)xx->A->data; 1390 ya = (Mat_SeqSBAIJ *)yy->A->data; 1391 bnz = PetscBLASIntCast(xa->nz); 1392 BLASaxpy_(&bnz,&alpha,xa->a,&one,ya->a,&one); 1393 xb = (Mat_SeqBAIJ *)xx->B->data; 1394 yb = (Mat_SeqBAIJ *)yy->B->data; 1395 bnz = PetscBLASIntCast(xb->nz); 1396 BLASaxpy_(&bnz,&alpha,xb->a,&one,yb->a,&one); 1397 } else { 1398 ierr = MatGetRowUpperTriangular(X);CHKERRQ(ierr); 1399 ierr = MatAXPY_Basic(Y,a,X,str);CHKERRQ(ierr); 1400 ierr = MatRestoreRowUpperTriangular(X);CHKERRQ(ierr); 1401 } 1402 PetscFunctionReturn(0); 1403 } 1404 1405 #undef __FUNCT__ 1406 #define __FUNCT__ "MatGetSubMatrices_MPISBAIJ" 1407 PetscErrorCode MatGetSubMatrices_MPISBAIJ(Mat A,PetscInt n,const IS irow[],const IS icol[],MatReuse scall,Mat *B[]) 1408 { 1409 PetscErrorCode ierr; 1410 PetscInt i; 1411 PetscBool flg; 1412 1413 PetscFunctionBegin; 1414 for (i=0; i<n; i++) { 1415 ierr = ISEqual(irow[i],icol[i],&flg);CHKERRQ(ierr); 1416 if (!flg) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_SUP,"Can only get symmetric submatrix for MPISBAIJ matrices"); 1417 } 1418 ierr = MatGetSubMatrices_MPIBAIJ(A,n,irow,icol,scall,B);CHKERRQ(ierr); 1419 PetscFunctionReturn(0); 1420 } 1421 1422 1423 /* -------------------------------------------------------------------*/ 1424 static struct _MatOps MatOps_Values = { 1425 MatSetValues_MPISBAIJ, 1426 MatGetRow_MPISBAIJ, 1427 MatRestoreRow_MPISBAIJ, 1428 MatMult_MPISBAIJ, 1429 /* 4*/ MatMultAdd_MPISBAIJ, 1430 MatMult_MPISBAIJ, /* transpose versions are same as non-transpose */ 1431 MatMultAdd_MPISBAIJ, 1432 0, 1433 0, 1434 0, 1435 /*10*/ 0, 1436 0, 1437 0, 1438 MatSOR_MPISBAIJ, 1439 MatTranspose_MPISBAIJ, 1440 /*15*/ MatGetInfo_MPISBAIJ, 1441 MatEqual_MPISBAIJ, 1442 MatGetDiagonal_MPISBAIJ, 1443 MatDiagonalScale_MPISBAIJ, 1444 MatNorm_MPISBAIJ, 1445 /*20*/ MatAssemblyBegin_MPISBAIJ, 1446 MatAssemblyEnd_MPISBAIJ, 1447 MatSetOption_MPISBAIJ, 1448 MatZeroEntries_MPISBAIJ, 1449 /*24*/ 0, 1450 0, 1451 0, 1452 0, 1453 0, 1454 /*29*/ MatSetUp_MPISBAIJ, 1455 0, 1456 0, 1457 0, 1458 0, 1459 /*34*/ MatDuplicate_MPISBAIJ, 1460 0, 1461 0, 1462 0, 1463 0, 1464 /*39*/ MatAXPY_MPISBAIJ, 1465 MatGetSubMatrices_MPISBAIJ, 1466 MatIncreaseOverlap_MPISBAIJ, 1467 MatGetValues_MPISBAIJ, 1468 MatCopy_MPISBAIJ, 1469 /*44*/ 0, 1470 MatScale_MPISBAIJ, 1471 0, 1472 0, 1473 0, 1474 /*49*/ 0, 1475 0, 1476 0, 1477 0, 1478 0, 1479 /*54*/ 0, 1480 0, 1481 MatSetUnfactored_MPISBAIJ, 1482 0, 1483 MatSetValuesBlocked_MPISBAIJ, 1484 /*59*/ 0, 1485 0, 1486 0, 1487 0, 1488 0, 1489 /*64*/ 0, 1490 0, 1491 0, 1492 0, 1493 0, 1494 /*69*/ MatGetRowMaxAbs_MPISBAIJ, 1495 0, 1496 0, 1497 0, 1498 0, 1499 /*74*/ 0, 1500 0, 1501 0, 1502 0, 1503 0, 1504 /*79*/ 0, 1505 0, 1506 0, 1507 0, 1508 MatLoad_MPISBAIJ, 1509 /*84*/ 0, 1510 0, 1511 0, 1512 0, 1513 0, 1514 /*89*/ 0, 1515 0, 1516 0, 1517 0, 1518 0, 1519 /*94*/ 0, 1520 0, 1521 0, 1522 0, 1523 0, 1524 /*99*/ 0, 1525 0, 1526 0, 1527 0, 1528 0, 1529 /*104*/0, 1530 MatRealPart_MPISBAIJ, 1531 MatImaginaryPart_MPISBAIJ, 1532 MatGetRowUpperTriangular_MPISBAIJ, 1533 MatRestoreRowUpperTriangular_MPISBAIJ, 1534 /*109*/0, 1535 0, 1536 0, 1537 0, 1538 0, 1539 /*114*/0, 1540 0, 1541 0, 1542 0, 1543 0, 1544 /*119*/0, 1545 0, 1546 0, 1547 0 1548 }; 1549 1550 1551 EXTERN_C_BEGIN 1552 #undef __FUNCT__ 1553 #define __FUNCT__ "MatGetDiagonalBlock_MPISBAIJ" 1554 PetscErrorCode MatGetDiagonalBlock_MPISBAIJ(Mat A,Mat *a) 1555 { 1556 PetscFunctionBegin; 1557 *a = ((Mat_MPISBAIJ *)A->data)->A; 1558 PetscFunctionReturn(0); 1559 } 1560 EXTERN_C_END 1561 1562 EXTERN_C_BEGIN 1563 #undef __FUNCT__ 1564 #define __FUNCT__ "MatMPISBAIJSetPreallocation_MPISBAIJ" 1565 PetscErrorCode MatMPISBAIJSetPreallocation_MPISBAIJ(Mat B,PetscInt bs,PetscInt d_nz,PetscInt *d_nnz,PetscInt o_nz,PetscInt *o_nnz) 1566 { 1567 Mat_MPISBAIJ *b; 1568 PetscErrorCode ierr; 1569 PetscInt i,mbs,Mbs; 1570 1571 PetscFunctionBegin; 1572 if (d_nz == PETSC_DECIDE || d_nz == PETSC_DEFAULT) d_nz = 3; 1573 if (o_nz == PETSC_DECIDE || o_nz == PETSC_DEFAULT) o_nz = 1; 1574 if (d_nz < 0) SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"d_nz cannot be less than 0: value %D",d_nz); 1575 if (o_nz < 0) SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"o_nz cannot be less than 0: value %D",o_nz); 1576 1577 ierr = PetscLayoutSetBlockSize(B->rmap,bs);CHKERRQ(ierr); 1578 ierr = PetscLayoutSetBlockSize(B->cmap,bs);CHKERRQ(ierr); 1579 ierr = PetscLayoutSetUp(B->rmap);CHKERRQ(ierr); 1580 ierr = PetscLayoutSetUp(B->cmap);CHKERRQ(ierr); 1581 ierr = PetscLayoutGetBlockSize(B->rmap,&bs);CHKERRQ(ierr); 1582 1583 if (d_nnz) { 1584 for (i=0; i<B->rmap->n/bs; i++) { 1585 if (d_nnz[i] < 0) SETERRQ2(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"d_nnz cannot be less than -1: local row %D value %D",i,d_nnz[i]); 1586 } 1587 } 1588 if (o_nnz) { 1589 for (i=0; i<B->rmap->n/bs; i++) { 1590 if (o_nnz[i] < 0) SETERRQ2(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"o_nnz cannot be less than -1: local row %D value %D",i,o_nnz[i]); 1591 } 1592 } 1593 1594 b = (Mat_MPISBAIJ*)B->data; 1595 mbs = B->rmap->n/bs; 1596 Mbs = B->rmap->N/bs; 1597 if (mbs*bs != B->rmap->n) SETERRQ2(PETSC_COMM_SELF,PETSC_ERR_ARG_SIZ,"No of local rows %D must be divisible by blocksize %D",B->rmap->N,bs); 1598 1599 B->rmap->bs = bs; 1600 b->bs2 = bs*bs; 1601 b->mbs = mbs; 1602 b->nbs = mbs; 1603 b->Mbs = Mbs; 1604 b->Nbs = Mbs; 1605 1606 for (i=0; i<=b->size; i++) { 1607 b->rangebs[i] = B->rmap->range[i]/bs; 1608 } 1609 b->rstartbs = B->rmap->rstart/bs; 1610 b->rendbs = B->rmap->rend/bs; 1611 1612 b->cstartbs = B->cmap->rstart/bs; 1613 b->cendbs = B->cmap->rend/bs; 1614 1615 if (!B->preallocated) { 1616 ierr = MatCreate(PETSC_COMM_SELF,&b->A);CHKERRQ(ierr); 1617 ierr = MatSetSizes(b->A,B->rmap->n,B->cmap->n,B->rmap->n,B->cmap->n);CHKERRQ(ierr); 1618 ierr = MatSetType(b->A,MATSEQSBAIJ);CHKERRQ(ierr); 1619 ierr = PetscLogObjectParent(B,b->A);CHKERRQ(ierr); 1620 ierr = MatCreate(PETSC_COMM_SELF,&b->B);CHKERRQ(ierr); 1621 ierr = MatSetSizes(b->B,B->rmap->n,B->cmap->N,B->rmap->n,B->cmap->N);CHKERRQ(ierr); 1622 ierr = MatSetType(b->B,MATSEQBAIJ);CHKERRQ(ierr); 1623 ierr = PetscLogObjectParent(B,b->B);CHKERRQ(ierr); 1624 ierr = MatStashCreate_Private(((PetscObject)B)->comm,bs,&B->bstash);CHKERRQ(ierr); 1625 } 1626 1627 ierr = MatSeqSBAIJSetPreallocation(b->A,bs,d_nz,d_nnz);CHKERRQ(ierr); 1628 ierr = MatSeqBAIJSetPreallocation(b->B,bs,o_nz,o_nnz);CHKERRQ(ierr); 1629 B->preallocated = PETSC_TRUE; 1630 PetscFunctionReturn(0); 1631 } 1632 EXTERN_C_END 1633 1634 EXTERN_C_BEGIN 1635 #undef __FUNCT__ 1636 #define __FUNCT__ "MatMPISBAIJSetPreallocationCSR_MPISBAIJ" 1637 PetscErrorCode MatMPISBAIJSetPreallocationCSR_MPISBAIJ(Mat B,PetscInt bs,const PetscInt ii[],const PetscInt jj[],const PetscScalar V[]) 1638 { 1639 PetscInt m,rstart,cstart,cend; 1640 PetscInt i,j,d,nz,nz_max=0,*d_nnz=0,*o_nnz=0; 1641 const PetscInt *JJ=0; 1642 PetscScalar *values=0; 1643 PetscErrorCode ierr; 1644 1645 PetscFunctionBegin; 1646 1647 if (bs < 1) SETERRQ1(((PetscObject)B)->comm,PETSC_ERR_ARG_OUTOFRANGE,"Invalid block size specified, must be positive but it is %D",bs); 1648 ierr = PetscLayoutSetBlockSize(B->rmap,bs);CHKERRQ(ierr); 1649 ierr = PetscLayoutSetBlockSize(B->cmap,bs);CHKERRQ(ierr); 1650 ierr = PetscLayoutSetUp(B->rmap);CHKERRQ(ierr); 1651 ierr = PetscLayoutSetUp(B->cmap);CHKERRQ(ierr); 1652 ierr = PetscLayoutGetBlockSize(B->rmap,&bs);CHKERRQ(ierr); 1653 m = B->rmap->n/bs; 1654 rstart = B->rmap->rstart/bs; 1655 cstart = B->cmap->rstart/bs; 1656 cend = B->cmap->rend/bs; 1657 1658 if (ii[0]) SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"ii[0] must be 0 but it is %D",ii[0]); 1659 ierr = PetscMalloc2(m,PetscInt,&d_nnz,m,PetscInt,&o_nnz);CHKERRQ(ierr); 1660 for (i=0; i<m; i++) { 1661 nz = ii[i+1] - ii[i]; 1662 if (nz < 0) SETERRQ2(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"Local row %D has a negative number of columns %D",i,nz); 1663 nz_max = PetscMax(nz_max,nz); 1664 JJ = jj + ii[i]; 1665 for (j=0; j<nz; j++) { 1666 if (*JJ >= cstart) break; 1667 JJ++; 1668 } 1669 d = 0; 1670 for (; j<nz; j++) { 1671 if (*JJ++ >= cend) break; 1672 d++; 1673 } 1674 d_nnz[i] = d; 1675 o_nnz[i] = nz - d; 1676 } 1677 ierr = MatMPISBAIJSetPreallocation(B,bs,0,d_nnz,0,o_nnz);CHKERRQ(ierr); 1678 ierr = PetscFree2(d_nnz,o_nnz);CHKERRQ(ierr); 1679 1680 values = (PetscScalar*)V; 1681 if (!values) { 1682 ierr = PetscMalloc(bs*bs*nz_max*sizeof(PetscScalar),&values);CHKERRQ(ierr); 1683 ierr = PetscMemzero(values,bs*bs*nz_max*sizeof(PetscScalar));CHKERRQ(ierr); 1684 } 1685 for (i=0; i<m; i++) { 1686 PetscInt row = i + rstart; 1687 PetscInt ncols = ii[i+1] - ii[i]; 1688 const PetscInt *icols = jj + ii[i]; 1689 const PetscScalar *svals = values + (V ? (bs*bs*ii[i]) : 0); 1690 ierr = MatSetValuesBlocked_MPISBAIJ(B,1,&row,ncols,icols,svals,INSERT_VALUES);CHKERRQ(ierr); 1691 } 1692 1693 if (!V) { ierr = PetscFree(values);CHKERRQ(ierr); } 1694 ierr = MatAssemblyBegin(B,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 1695 ierr = MatAssemblyEnd(B,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 1696 ierr = MatSetOption(B,MAT_NEW_NONZERO_LOCATION_ERR,PETSC_TRUE);CHKERRQ(ierr); 1697 PetscFunctionReturn(0); 1698 } 1699 EXTERN_C_END 1700 1701 EXTERN_C_BEGIN 1702 #if defined(PETSC_HAVE_MUMPS) 1703 extern PetscErrorCode MatGetFactor_sbaij_mumps(Mat,MatFactorType,Mat*); 1704 #endif 1705 #if defined(PETSC_HAVE_SPOOLES) 1706 extern PetscErrorCode MatGetFactor_mpisbaij_spooles(Mat,MatFactorType,Mat*); 1707 #endif 1708 #if defined(PETSC_HAVE_PASTIX) 1709 extern PetscErrorCode MatGetFactor_mpisbaij_pastix(Mat,MatFactorType,Mat*); 1710 #endif 1711 EXTERN_C_END 1712 1713 /*MC 1714 MATMPISBAIJ - MATMPISBAIJ = "mpisbaij" - A matrix type to be used for distributed symmetric sparse block matrices, 1715 based on block compressed sparse row format. Only the upper triangular portion of the "diagonal" portion of 1716 the matrix is stored. 1717 1718 For complex numbers by default this matrix is symmetric, NOT Hermitian symmetric. To make it Hermitian symmetric you 1719 can call MatSetOption(Mat, MAT_HERMITIAN); 1720 1721 Options Database Keys: 1722 . -mat_type mpisbaij - sets the matrix type to "mpisbaij" during a call to MatSetFromOptions() 1723 1724 Level: beginner 1725 1726 .seealso: MatCreateMPISBAIJ 1727 M*/ 1728 1729 EXTERN_C_BEGIN 1730 extern PetscErrorCode MatConvert_MPISBAIJ_MPISBSTRM(Mat,const MatType,MatReuse,Mat*); 1731 EXTERN_C_END 1732 1733 EXTERN_C_BEGIN 1734 #undef __FUNCT__ 1735 #define __FUNCT__ "MatCreate_MPISBAIJ" 1736 PetscErrorCode MatCreate_MPISBAIJ(Mat B) 1737 { 1738 Mat_MPISBAIJ *b; 1739 PetscErrorCode ierr; 1740 PetscBool flg; 1741 1742 PetscFunctionBegin; 1743 1744 ierr = PetscNewLog(B,Mat_MPISBAIJ,&b);CHKERRQ(ierr); 1745 B->data = (void*)b; 1746 ierr = PetscMemcpy(B->ops,&MatOps_Values,sizeof(struct _MatOps));CHKERRQ(ierr); 1747 1748 B->ops->destroy = MatDestroy_MPISBAIJ; 1749 B->ops->view = MatView_MPISBAIJ; 1750 B->assembled = PETSC_FALSE; 1751 1752 B->insertmode = NOT_SET_VALUES; 1753 ierr = MPI_Comm_rank(((PetscObject)B)->comm,&b->rank);CHKERRQ(ierr); 1754 ierr = MPI_Comm_size(((PetscObject)B)->comm,&b->size);CHKERRQ(ierr); 1755 1756 /* build local table of row and column ownerships */ 1757 ierr = PetscMalloc((b->size+2)*sizeof(PetscInt),&b->rangebs);CHKERRQ(ierr); 1758 1759 /* build cache for off array entries formed */ 1760 ierr = MatStashCreate_Private(((PetscObject)B)->comm,1,&B->stash);CHKERRQ(ierr); 1761 b->donotstash = PETSC_FALSE; 1762 b->colmap = PETSC_NULL; 1763 b->garray = PETSC_NULL; 1764 b->roworiented = PETSC_TRUE; 1765 1766 /* stuff used in block assembly */ 1767 b->barray = 0; 1768 1769 /* stuff used for matrix vector multiply */ 1770 b->lvec = 0; 1771 b->Mvctx = 0; 1772 b->slvec0 = 0; 1773 b->slvec0b = 0; 1774 b->slvec1 = 0; 1775 b->slvec1a = 0; 1776 b->slvec1b = 0; 1777 b->sMvctx = 0; 1778 1779 /* stuff for MatGetRow() */ 1780 b->rowindices = 0; 1781 b->rowvalues = 0; 1782 b->getrowactive = PETSC_FALSE; 1783 1784 /* hash table stuff */ 1785 b->ht = 0; 1786 b->hd = 0; 1787 b->ht_size = 0; 1788 b->ht_flag = PETSC_FALSE; 1789 b->ht_fact = 0; 1790 b->ht_total_ct = 0; 1791 b->ht_insert_ct = 0; 1792 1793 /* stuff for MatGetSubMatrices_MPIBAIJ_local() */ 1794 b->ijonly = PETSC_FALSE; 1795 1796 b->in_loc = 0; 1797 b->v_loc = 0; 1798 b->n_loc = 0; 1799 ierr = PetscOptionsBegin(((PetscObject)B)->comm,PETSC_NULL,"Options for loading MPISBAIJ matrix 1","Mat");CHKERRQ(ierr); 1800 ierr = PetscOptionsBool("-mat_use_hash_table","Use hash table to save memory in constructing matrix","MatSetOption",PETSC_FALSE,&flg,PETSC_NULL);CHKERRQ(ierr); 1801 if (flg) { 1802 PetscReal fact = 1.39; 1803 ierr = MatSetOption(B,MAT_USE_HASH_TABLE,PETSC_TRUE);CHKERRQ(ierr); 1804 ierr = PetscOptionsReal("-mat_use_hash_table","Use hash table factor","MatMPIBAIJSetHashTableFactor",fact,&fact,PETSC_NULL);CHKERRQ(ierr); 1805 if (fact <= 1.0) fact = 1.39; 1806 ierr = MatMPIBAIJSetHashTableFactor(B,fact);CHKERRQ(ierr); 1807 ierr = PetscInfo1(B,"Hash table Factor used %5.2f\n",fact);CHKERRQ(ierr); 1808 } 1809 ierr = PetscOptionsEnd();CHKERRQ(ierr); 1810 1811 #if defined(PETSC_HAVE_PASTIX) 1812 ierr = PetscObjectComposeFunctionDynamic((PetscObject)B,"MatGetFactor_pastix_C", 1813 "MatGetFactor_mpisbaij_pastix", 1814 MatGetFactor_mpisbaij_pastix);CHKERRQ(ierr); 1815 #endif 1816 #if defined(PETSC_HAVE_MUMPS) 1817 ierr = PetscObjectComposeFunctionDynamic((PetscObject)B,"MatGetFactor_mumps_C", 1818 "MatGetFactor_sbaij_mumps", 1819 MatGetFactor_sbaij_mumps);CHKERRQ(ierr); 1820 #endif 1821 #if defined(PETSC_HAVE_SPOOLES) 1822 ierr = PetscObjectComposeFunctionDynamic((PetscObject)B,"MatGetFactor_spooles_C", 1823 "MatGetFactor_mpisbaij_spooles", 1824 MatGetFactor_mpisbaij_spooles);CHKERRQ(ierr); 1825 #endif 1826 ierr = PetscObjectComposeFunctionDynamic((PetscObject)B,"MatStoreValues_C", 1827 "MatStoreValues_MPISBAIJ", 1828 MatStoreValues_MPISBAIJ);CHKERRQ(ierr); 1829 ierr = PetscObjectComposeFunctionDynamic((PetscObject)B,"MatRetrieveValues_C", 1830 "MatRetrieveValues_MPISBAIJ", 1831 MatRetrieveValues_MPISBAIJ);CHKERRQ(ierr); 1832 ierr = PetscObjectComposeFunctionDynamic((PetscObject)B,"MatGetDiagonalBlock_C", 1833 "MatGetDiagonalBlock_MPISBAIJ", 1834 MatGetDiagonalBlock_MPISBAIJ);CHKERRQ(ierr); 1835 ierr = PetscObjectComposeFunctionDynamic((PetscObject)B,"MatMPISBAIJSetPreallocation_C", 1836 "MatMPISBAIJSetPreallocation_MPISBAIJ", 1837 MatMPISBAIJSetPreallocation_MPISBAIJ);CHKERRQ(ierr); 1838 ierr = PetscObjectComposeFunctionDynamic((PetscObject)B,"MatMPISBAIJSetPreallocationCSR_C", 1839 "MatMPISBAIJSetPreallocationCSR_MPISBAIJ", 1840 MatMPISBAIJSetPreallocationCSR_MPISBAIJ);CHKERRQ(ierr); 1841 ierr = PetscObjectComposeFunctionDynamic((PetscObject)B,"MatConvert_mpisbaij_mpisbstrm_C", 1842 "MatConvert_MPISBAIJ_MPISBSTRM", 1843 MatConvert_MPISBAIJ_MPISBSTRM);CHKERRQ(ierr); 1844 1845 B->symmetric = PETSC_TRUE; 1846 B->structurally_symmetric = PETSC_TRUE; 1847 B->symmetric_set = PETSC_TRUE; 1848 B->structurally_symmetric_set = PETSC_TRUE; 1849 ierr = PetscObjectChangeTypeName((PetscObject)B,MATMPISBAIJ);CHKERRQ(ierr); 1850 PetscFunctionReturn(0); 1851 } 1852 EXTERN_C_END 1853 1854 /*MC 1855 MATSBAIJ - MATSBAIJ = "sbaij" - A matrix type to be used for symmetric block sparse matrices. 1856 1857 This matrix type is identical to MATSEQSBAIJ when constructed with a single process communicator, 1858 and MATMPISBAIJ otherwise. 1859 1860 Options Database Keys: 1861 . -mat_type sbaij - sets the matrix type to "sbaij" during a call to MatSetFromOptions() 1862 1863 Level: beginner 1864 1865 .seealso: MatCreateMPISBAIJ,MATSEQSBAIJ,MATMPISBAIJ 1866 M*/ 1867 1868 #undef __FUNCT__ 1869 #define __FUNCT__ "MatMPISBAIJSetPreallocation" 1870 /*@C 1871 MatMPISBAIJSetPreallocation - For good matrix assembly performance 1872 the user should preallocate the matrix storage by setting the parameters 1873 d_nz (or d_nnz) and o_nz (or o_nnz). By setting these parameters accurately, 1874 performance can be increased by more than a factor of 50. 1875 1876 Collective on Mat 1877 1878 Input Parameters: 1879 + A - the matrix 1880 . bs - size of blockk 1881 . d_nz - number of block nonzeros per block row in diagonal portion of local 1882 submatrix (same for all local rows) 1883 . d_nnz - array containing the number of block nonzeros in the various block rows 1884 in the upper triangular and diagonal part of the in diagonal portion of the local 1885 (possibly different for each block row) or PETSC_NULL. If you plan to factor the matrix you must leave room 1886 for the diagonal entry and set a value even if it is zero. 1887 . o_nz - number of block nonzeros per block row in the off-diagonal portion of local 1888 submatrix (same for all local rows). 1889 - o_nnz - array containing the number of nonzeros in the various block rows of the 1890 off-diagonal portion of the local submatrix that is right of the diagonal 1891 (possibly different for each block row) or PETSC_NULL. 1892 1893 1894 Options Database Keys: 1895 . -mat_no_unroll - uses code that does not unroll the loops in the 1896 block calculations (much slower) 1897 . -mat_block_size - size of the blocks to use 1898 1899 Notes: 1900 1901 If PETSC_DECIDE or PETSC_DETERMINE is used for a particular argument on one processor 1902 than it must be used on all processors that share the object for that argument. 1903 1904 If the *_nnz parameter is given then the *_nz parameter is ignored 1905 1906 Storage Information: 1907 For a square global matrix we define each processor's diagonal portion 1908 to be its local rows and the corresponding columns (a square submatrix); 1909 each processor's off-diagonal portion encompasses the remainder of the 1910 local matrix (a rectangular submatrix). 1911 1912 The user can specify preallocated storage for the diagonal part of 1913 the local submatrix with either d_nz or d_nnz (not both). Set 1914 d_nz=PETSC_DEFAULT and d_nnz=PETSC_NULL for PETSc to control dynamic 1915 memory allocation. Likewise, specify preallocated storage for the 1916 off-diagonal part of the local submatrix with o_nz or o_nnz (not both). 1917 1918 You can call MatGetInfo() to get information on how effective the preallocation was; 1919 for example the fields mallocs,nz_allocated,nz_used,nz_unneeded; 1920 You can also run with the option -info and look for messages with the string 1921 malloc in them to see if additional memory allocation was needed. 1922 1923 Consider a processor that owns rows 3, 4 and 5 of a parallel matrix. In 1924 the figure below we depict these three local rows and all columns (0-11). 1925 1926 .vb 1927 0 1 2 3 4 5 6 7 8 9 10 11 1928 ------------------- 1929 row 3 | . . . d d d o o o o o o 1930 row 4 | . . . d d d o o o o o o 1931 row 5 | . . . d d d o o o o o o 1932 ------------------- 1933 .ve 1934 1935 Thus, any entries in the d locations are stored in the d (diagonal) 1936 submatrix, and any entries in the o locations are stored in the 1937 o (off-diagonal) submatrix. Note that the d matrix is stored in 1938 MatSeqSBAIJ format and the o submatrix in MATSEQBAIJ format. 1939 1940 Now d_nz should indicate the number of block nonzeros per row in the upper triangular 1941 plus the diagonal part of the d matrix, 1942 and o_nz should indicate the number of block nonzeros per row in the o matrix 1943 1944 In general, for PDE problems in which most nonzeros are near the diagonal, 1945 one expects d_nz >> o_nz. For large problems you MUST preallocate memory 1946 or you will get TERRIBLE performance; see the users' manual chapter on 1947 matrices. 1948 1949 Level: intermediate 1950 1951 .keywords: matrix, block, aij, compressed row, sparse, parallel 1952 1953 .seealso: MatCreate(), MatCreateSeqSBAIJ(), MatSetValues(), MatCreateBAIJ() 1954 @*/ 1955 PetscErrorCode MatMPISBAIJSetPreallocation(Mat B,PetscInt bs,PetscInt d_nz,const PetscInt d_nnz[],PetscInt o_nz,const PetscInt o_nnz[]) 1956 { 1957 PetscErrorCode ierr; 1958 1959 PetscFunctionBegin; 1960 PetscValidHeaderSpecific(B,MAT_CLASSID,1); 1961 PetscValidType(B,1); 1962 PetscValidLogicalCollectiveInt(B,bs,2); 1963 ierr = PetscTryMethod(B,"MatMPISBAIJSetPreallocation_C",(Mat,PetscInt,PetscInt,const PetscInt[],PetscInt,const PetscInt[]),(B,bs,d_nz,d_nnz,o_nz,o_nnz));CHKERRQ(ierr); 1964 PetscFunctionReturn(0); 1965 } 1966 1967 #undef __FUNCT__ 1968 #define __FUNCT__ "MatCreateSBAIJ" 1969 /*@C 1970 MatCreateSBAIJ - Creates a sparse parallel matrix in symmetric block AIJ format 1971 (block compressed row). For good matrix assembly performance 1972 the user should preallocate the matrix storage by setting the parameters 1973 d_nz (or d_nnz) and o_nz (or o_nnz). By setting these parameters accurately, 1974 performance can be increased by more than a factor of 50. 1975 1976 Collective on MPI_Comm 1977 1978 Input Parameters: 1979 + comm - MPI communicator 1980 . bs - size of blockk 1981 . m - number of local rows (or PETSC_DECIDE to have calculated if M is given) 1982 This value should be the same as the local size used in creating the 1983 y vector for the matrix-vector product y = Ax. 1984 . n - number of local columns (or PETSC_DECIDE to have calculated if N is given) 1985 This value should be the same as the local size used in creating the 1986 x vector for the matrix-vector product y = Ax. 1987 . M - number of global rows (or PETSC_DETERMINE to have calculated if m is given) 1988 . N - number of global columns (or PETSC_DETERMINE to have calculated if n is given) 1989 . d_nz - number of block nonzeros per block row in diagonal portion of local 1990 submatrix (same for all local rows) 1991 . d_nnz - array containing the number of block nonzeros in the various block rows 1992 in the upper triangular portion of the in diagonal portion of the local 1993 (possibly different for each block block row) or PETSC_NULL. 1994 If you plan to factor the matrix you must leave room for the diagonal entry and 1995 set its value even if it is zero. 1996 . o_nz - number of block nonzeros per block row in the off-diagonal portion of local 1997 submatrix (same for all local rows). 1998 - o_nnz - array containing the number of nonzeros in the various block rows of the 1999 off-diagonal portion of the local submatrix (possibly different for 2000 each block row) or PETSC_NULL. 2001 2002 Output Parameter: 2003 . A - the matrix 2004 2005 Options Database Keys: 2006 . -mat_no_unroll - uses code that does not unroll the loops in the 2007 block calculations (much slower) 2008 . -mat_block_size - size of the blocks to use 2009 . -mat_mpi - use the parallel matrix data structures even on one processor 2010 (defaults to using SeqBAIJ format on one processor) 2011 2012 It is recommended that one use the MatCreate(), MatSetType() and/or MatSetFromOptions(), 2013 MatXXXXSetPreallocation() paradgm instead of this routine directly. 2014 [MatXXXXSetPreallocation() is, for example, MatSeqAIJSetPreallocation] 2015 2016 Notes: 2017 The number of rows and columns must be divisible by blocksize. 2018 This matrix type does not support complex Hermitian operation. 2019 2020 The user MUST specify either the local or global matrix dimensions 2021 (possibly both). 2022 2023 If PETSC_DECIDE or PETSC_DETERMINE is used for a particular argument on one processor 2024 than it must be used on all processors that share the object for that argument. 2025 2026 If the *_nnz parameter is given then the *_nz parameter is ignored 2027 2028 Storage Information: 2029 For a square global matrix we define each processor's diagonal portion 2030 to be its local rows and the corresponding columns (a square submatrix); 2031 each processor's off-diagonal portion encompasses the remainder of the 2032 local matrix (a rectangular submatrix). 2033 2034 The user can specify preallocated storage for the diagonal part of 2035 the local submatrix with either d_nz or d_nnz (not both). Set 2036 d_nz=PETSC_DEFAULT and d_nnz=PETSC_NULL for PETSc to control dynamic 2037 memory allocation. Likewise, specify preallocated storage for the 2038 off-diagonal part of the local submatrix with o_nz or o_nnz (not both). 2039 2040 Consider a processor that owns rows 3, 4 and 5 of a parallel matrix. In 2041 the figure below we depict these three local rows and all columns (0-11). 2042 2043 .vb 2044 0 1 2 3 4 5 6 7 8 9 10 11 2045 ------------------- 2046 row 3 | . . . d d d o o o o o o 2047 row 4 | . . . d d d o o o o o o 2048 row 5 | . . . d d d o o o o o o 2049 ------------------- 2050 .ve 2051 2052 Thus, any entries in the d locations are stored in the d (diagonal) 2053 submatrix, and any entries in the o locations are stored in the 2054 o (off-diagonal) submatrix. Note that the d matrix is stored in 2055 MatSeqSBAIJ format and the o submatrix in MATSEQBAIJ format. 2056 2057 Now d_nz should indicate the number of block nonzeros per row in the upper triangular 2058 plus the diagonal part of the d matrix, 2059 and o_nz should indicate the number of block nonzeros per row in the o matrix. 2060 In general, for PDE problems in which most nonzeros are near the diagonal, 2061 one expects d_nz >> o_nz. For large problems you MUST preallocate memory 2062 or you will get TERRIBLE performance; see the users' manual chapter on 2063 matrices. 2064 2065 Level: intermediate 2066 2067 .keywords: matrix, block, aij, compressed row, sparse, parallel 2068 2069 .seealso: MatCreate(), MatCreateSeqSBAIJ(), MatSetValues(), MatCreateBAIJ() 2070 @*/ 2071 2072 PetscErrorCode MatCreateSBAIJ(MPI_Comm comm,PetscInt bs,PetscInt m,PetscInt n,PetscInt M,PetscInt N,PetscInt d_nz,const PetscInt d_nnz[],PetscInt o_nz,const PetscInt o_nnz[],Mat *A) 2073 { 2074 PetscErrorCode ierr; 2075 PetscMPIInt size; 2076 2077 PetscFunctionBegin; 2078 ierr = MatCreate(comm,A);CHKERRQ(ierr); 2079 ierr = MatSetSizes(*A,m,n,M,N);CHKERRQ(ierr); 2080 ierr = MPI_Comm_size(comm,&size);CHKERRQ(ierr); 2081 if (size > 1) { 2082 ierr = MatSetType(*A,MATMPISBAIJ);CHKERRQ(ierr); 2083 ierr = MatMPISBAIJSetPreallocation(*A,bs,d_nz,d_nnz,o_nz,o_nnz);CHKERRQ(ierr); 2084 } else { 2085 ierr = MatSetType(*A,MATSEQSBAIJ);CHKERRQ(ierr); 2086 ierr = MatSeqSBAIJSetPreallocation(*A,bs,d_nz,d_nnz);CHKERRQ(ierr); 2087 } 2088 PetscFunctionReturn(0); 2089 } 2090 2091 2092 #undef __FUNCT__ 2093 #define __FUNCT__ "MatDuplicate_MPISBAIJ" 2094 static PetscErrorCode MatDuplicate_MPISBAIJ(Mat matin,MatDuplicateOption cpvalues,Mat *newmat) 2095 { 2096 Mat mat; 2097 Mat_MPISBAIJ *a,*oldmat = (Mat_MPISBAIJ*)matin->data; 2098 PetscErrorCode ierr; 2099 PetscInt len=0,nt,bs=matin->rmap->bs,mbs=oldmat->mbs; 2100 PetscScalar *array; 2101 2102 PetscFunctionBegin; 2103 *newmat = 0; 2104 ierr = MatCreate(((PetscObject)matin)->comm,&mat);CHKERRQ(ierr); 2105 ierr = MatSetSizes(mat,matin->rmap->n,matin->cmap->n,matin->rmap->N,matin->cmap->N);CHKERRQ(ierr); 2106 ierr = MatSetType(mat,((PetscObject)matin)->type_name);CHKERRQ(ierr); 2107 ierr = PetscMemcpy(mat->ops,matin->ops,sizeof(struct _MatOps));CHKERRQ(ierr); 2108 ierr = PetscLayoutReference(matin->rmap,&mat->rmap);CHKERRQ(ierr); 2109 ierr = PetscLayoutReference(matin->cmap,&mat->cmap);CHKERRQ(ierr); 2110 2111 mat->factortype = matin->factortype; 2112 mat->preallocated = PETSC_TRUE; 2113 mat->assembled = PETSC_TRUE; 2114 mat->insertmode = NOT_SET_VALUES; 2115 2116 a = (Mat_MPISBAIJ*)mat->data; 2117 a->bs2 = oldmat->bs2; 2118 a->mbs = oldmat->mbs; 2119 a->nbs = oldmat->nbs; 2120 a->Mbs = oldmat->Mbs; 2121 a->Nbs = oldmat->Nbs; 2122 2123 2124 a->size = oldmat->size; 2125 a->rank = oldmat->rank; 2126 a->donotstash = oldmat->donotstash; 2127 a->roworiented = oldmat->roworiented; 2128 a->rowindices = 0; 2129 a->rowvalues = 0; 2130 a->getrowactive = PETSC_FALSE; 2131 a->barray = 0; 2132 a->rstartbs = oldmat->rstartbs; 2133 a->rendbs = oldmat->rendbs; 2134 a->cstartbs = oldmat->cstartbs; 2135 a->cendbs = oldmat->cendbs; 2136 2137 /* hash table stuff */ 2138 a->ht = 0; 2139 a->hd = 0; 2140 a->ht_size = 0; 2141 a->ht_flag = oldmat->ht_flag; 2142 a->ht_fact = oldmat->ht_fact; 2143 a->ht_total_ct = 0; 2144 a->ht_insert_ct = 0; 2145 2146 ierr = PetscMemcpy(a->rangebs,oldmat->rangebs,(a->size+2)*sizeof(PetscInt));CHKERRQ(ierr); 2147 if (oldmat->colmap) { 2148 #if defined (PETSC_USE_CTABLE) 2149 ierr = PetscTableCreateCopy(oldmat->colmap,&a->colmap);CHKERRQ(ierr); 2150 #else 2151 ierr = PetscMalloc((a->Nbs)*sizeof(PetscInt),&a->colmap);CHKERRQ(ierr); 2152 ierr = PetscLogObjectMemory(mat,(a->Nbs)*sizeof(PetscInt));CHKERRQ(ierr); 2153 ierr = PetscMemcpy(a->colmap,oldmat->colmap,(a->Nbs)*sizeof(PetscInt));CHKERRQ(ierr); 2154 #endif 2155 } else a->colmap = 0; 2156 2157 if (oldmat->garray && (len = ((Mat_SeqBAIJ*)(oldmat->B->data))->nbs)) { 2158 ierr = PetscMalloc(len*sizeof(PetscInt),&a->garray);CHKERRQ(ierr); 2159 ierr = PetscLogObjectMemory(mat,len*sizeof(PetscInt));CHKERRQ(ierr); 2160 ierr = PetscMemcpy(a->garray,oldmat->garray,len*sizeof(PetscInt));CHKERRQ(ierr); 2161 } else a->garray = 0; 2162 2163 ierr = MatStashCreate_Private(((PetscObject)matin)->comm,matin->rmap->bs,&mat->bstash);CHKERRQ(ierr); 2164 ierr = VecDuplicate(oldmat->lvec,&a->lvec);CHKERRQ(ierr); 2165 ierr = PetscLogObjectParent(mat,a->lvec);CHKERRQ(ierr); 2166 ierr = VecScatterCopy(oldmat->Mvctx,&a->Mvctx);CHKERRQ(ierr); 2167 ierr = PetscLogObjectParent(mat,a->Mvctx);CHKERRQ(ierr); 2168 2169 ierr = VecDuplicate(oldmat->slvec0,&a->slvec0);CHKERRQ(ierr); 2170 ierr = PetscLogObjectParent(mat,a->slvec0);CHKERRQ(ierr); 2171 ierr = VecDuplicate(oldmat->slvec1,&a->slvec1);CHKERRQ(ierr); 2172 ierr = PetscLogObjectParent(mat,a->slvec1);CHKERRQ(ierr); 2173 2174 ierr = VecGetLocalSize(a->slvec1,&nt);CHKERRQ(ierr); 2175 ierr = VecGetArray(a->slvec1,&array);CHKERRQ(ierr); 2176 ierr = VecCreateSeqWithArray(PETSC_COMM_SELF,1,bs*mbs,array,&a->slvec1a);CHKERRQ(ierr); 2177 ierr = VecCreateSeqWithArray(PETSC_COMM_SELF,1,nt-bs*mbs,array+bs*mbs,&a->slvec1b);CHKERRQ(ierr); 2178 ierr = VecRestoreArray(a->slvec1,&array);CHKERRQ(ierr); 2179 ierr = VecGetArray(a->slvec0,&array);CHKERRQ(ierr); 2180 ierr = VecCreateSeqWithArray(PETSC_COMM_SELF,1,nt-bs*mbs,array+bs*mbs,&a->slvec0b);CHKERRQ(ierr); 2181 ierr = VecRestoreArray(a->slvec0,&array);CHKERRQ(ierr); 2182 ierr = PetscLogObjectParent(mat,a->slvec0);CHKERRQ(ierr); 2183 ierr = PetscLogObjectParent(mat,a->slvec1);CHKERRQ(ierr); 2184 ierr = PetscLogObjectParent(mat,a->slvec0b);CHKERRQ(ierr); 2185 ierr = PetscLogObjectParent(mat,a->slvec1a);CHKERRQ(ierr); 2186 ierr = PetscLogObjectParent(mat,a->slvec1b);CHKERRQ(ierr); 2187 2188 /* ierr = VecScatterCopy(oldmat->sMvctx,&a->sMvctx); - not written yet, replaced by the lazy trick: */ 2189 ierr = PetscObjectReference((PetscObject)oldmat->sMvctx);CHKERRQ(ierr); 2190 a->sMvctx = oldmat->sMvctx; 2191 ierr = PetscLogObjectParent(mat,a->sMvctx);CHKERRQ(ierr); 2192 2193 ierr = MatDuplicate(oldmat->A,cpvalues,&a->A);CHKERRQ(ierr); 2194 ierr = PetscLogObjectParent(mat,a->A);CHKERRQ(ierr); 2195 ierr = MatDuplicate(oldmat->B,cpvalues,&a->B);CHKERRQ(ierr); 2196 ierr = PetscLogObjectParent(mat,a->B);CHKERRQ(ierr); 2197 ierr = PetscFListDuplicate(((PetscObject)matin)->qlist,&((PetscObject)mat)->qlist);CHKERRQ(ierr); 2198 *newmat = mat; 2199 PetscFunctionReturn(0); 2200 } 2201 2202 #undef __FUNCT__ 2203 #define __FUNCT__ "MatLoad_MPISBAIJ" 2204 PetscErrorCode MatLoad_MPISBAIJ(Mat newmat,PetscViewer viewer) 2205 { 2206 PetscErrorCode ierr; 2207 PetscInt i,nz,j,rstart,rend; 2208 PetscScalar *vals,*buf; 2209 MPI_Comm comm = ((PetscObject)viewer)->comm; 2210 MPI_Status status; 2211 PetscMPIInt rank,size,tag = ((PetscObject)viewer)->tag,*sndcounts = 0,*browners,maxnz,*rowners,*locrowlens,mmbs; 2212 PetscInt header[4],*rowlengths = 0,M,N,m,*cols; 2213 PetscInt *procsnz = 0,jj,*mycols,*ibuf; 2214 PetscInt bs=1,Mbs,mbs,extra_rows; 2215 PetscInt *dlens,*odlens,*mask,*masked1,*masked2,rowcount,odcount; 2216 PetscInt dcount,kmax,k,nzcount,tmp,sizesset=1,grows,gcols; 2217 int fd; 2218 2219 PetscFunctionBegin; 2220 ierr = PetscOptionsBegin(comm,PETSC_NULL,"Options for loading MPISBAIJ matrix 2","Mat");CHKERRQ(ierr); 2221 ierr = PetscOptionsInt("-matload_block_size","Set the blocksize used to store the matrix","MatLoad",bs,&bs,PETSC_NULL);CHKERRQ(ierr); 2222 ierr = PetscOptionsEnd();CHKERRQ(ierr); 2223 2224 ierr = MPI_Comm_size(comm,&size);CHKERRQ(ierr); 2225 ierr = MPI_Comm_rank(comm,&rank);CHKERRQ(ierr); 2226 if (!rank) { 2227 ierr = PetscViewerBinaryGetDescriptor(viewer,&fd);CHKERRQ(ierr); 2228 ierr = PetscBinaryRead(fd,(char *)header,4,PETSC_INT);CHKERRQ(ierr); 2229 if (header[0] != MAT_FILE_CLASSID) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_FILE_UNEXPECTED,"not matrix object"); 2230 if (header[3] < 0) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_FILE_UNEXPECTED,"Matrix stored in special format, cannot load as MPISBAIJ"); 2231 } 2232 2233 if (newmat->rmap->n < 0 && newmat->rmap->N < 0 && newmat->cmap->n < 0 && newmat->cmap->N < 0) sizesset = 0; 2234 2235 ierr = MPI_Bcast(header+1,3,MPIU_INT,0,comm);CHKERRQ(ierr); 2236 M = header[1]; N = header[2]; 2237 2238 /* If global rows/cols are set to PETSC_DECIDE, set it to the sizes given in the file */ 2239 if (sizesset && newmat->rmap->N < 0) newmat->rmap->N = M; 2240 if (sizesset && newmat->cmap->N < 0) newmat->cmap->N = N; 2241 2242 /* If global sizes are set, check if they are consistent with that given in the file */ 2243 if (sizesset) { 2244 ierr = MatGetSize(newmat,&grows,&gcols);CHKERRQ(ierr); 2245 } 2246 if (sizesset && newmat->rmap->N != grows) SETERRQ2(PETSC_COMM_SELF,PETSC_ERR_FILE_UNEXPECTED, "Inconsistent # of rows:Matrix in file has (%d) and input matrix has (%d)",M,grows); 2247 if (sizesset && newmat->cmap->N != gcols) SETERRQ2(PETSC_COMM_SELF,PETSC_ERR_FILE_UNEXPECTED, "Inconsistent # of cols:Matrix in file has (%d) and input matrix has (%d)",N,gcols); 2248 2249 if (M != N) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_SUP,"Can only do square matrices"); 2250 2251 /* 2252 This code adds extra rows to make sure the number of rows is 2253 divisible by the blocksize 2254 */ 2255 Mbs = M/bs; 2256 extra_rows = bs - M + bs*(Mbs); 2257 if (extra_rows == bs) extra_rows = 0; 2258 else Mbs++; 2259 if (extra_rows &&!rank) { 2260 ierr = PetscInfo(viewer,"Padding loaded matrix to match blocksize\n");CHKERRQ(ierr); 2261 } 2262 2263 /* determine ownership of all rows */ 2264 if (newmat->rmap->n < 0) { /* PETSC_DECIDE */ 2265 mbs = Mbs/size + ((Mbs % size) > rank); 2266 m = mbs*bs; 2267 } else { /* User Set */ 2268 m = newmat->rmap->n; 2269 mbs = m/bs; 2270 } 2271 ierr = PetscMalloc2(size+1,PetscMPIInt,&rowners,size+1,PetscMPIInt,&browners);CHKERRQ(ierr); 2272 mmbs = PetscMPIIntCast(mbs); 2273 ierr = MPI_Allgather(&mmbs,1,MPI_INT,rowners+1,1,MPI_INT,comm);CHKERRQ(ierr); 2274 rowners[0] = 0; 2275 for (i=2; i<=size; i++) rowners[i] += rowners[i-1]; 2276 for (i=0; i<=size; i++) browners[i] = rowners[i]*bs; 2277 rstart = rowners[rank]; 2278 rend = rowners[rank+1]; 2279 2280 /* distribute row lengths to all processors */ 2281 ierr = PetscMalloc((rend-rstart)*bs*sizeof(PetscMPIInt),&locrowlens);CHKERRQ(ierr); 2282 if (!rank) { 2283 ierr = PetscMalloc((M+extra_rows)*sizeof(PetscInt),&rowlengths);CHKERRQ(ierr); 2284 ierr = PetscBinaryRead(fd,rowlengths,M,PETSC_INT);CHKERRQ(ierr); 2285 for (i=0; i<extra_rows; i++) rowlengths[M+i] = 1; 2286 ierr = PetscMalloc(size*sizeof(PetscMPIInt),&sndcounts);CHKERRQ(ierr); 2287 for (i=0; i<size; i++) sndcounts[i] = browners[i+1] - browners[i]; 2288 ierr = MPI_Scatterv(rowlengths,sndcounts,browners,MPIU_INT,locrowlens,(rend-rstart)*bs,MPIU_INT,0,comm);CHKERRQ(ierr); 2289 ierr = PetscFree(sndcounts);CHKERRQ(ierr); 2290 } else { 2291 ierr = MPI_Scatterv(0,0,0,MPIU_INT,locrowlens,(rend-rstart)*bs,MPIU_INT,0,comm);CHKERRQ(ierr); 2292 } 2293 2294 if (!rank) { /* procs[0] */ 2295 /* calculate the number of nonzeros on each processor */ 2296 ierr = PetscMalloc(size*sizeof(PetscInt),&procsnz);CHKERRQ(ierr); 2297 ierr = PetscMemzero(procsnz,size*sizeof(PetscInt));CHKERRQ(ierr); 2298 for (i=0; i<size; i++) { 2299 for (j=rowners[i]*bs; j< rowners[i+1]*bs; j++) { 2300 procsnz[i] += rowlengths[j]; 2301 } 2302 } 2303 ierr = PetscFree(rowlengths);CHKERRQ(ierr); 2304 2305 /* determine max buffer needed and allocate it */ 2306 maxnz = 0; 2307 for (i=0; i<size; i++) { 2308 maxnz = PetscMax(maxnz,procsnz[i]); 2309 } 2310 ierr = PetscMalloc(maxnz*sizeof(PetscInt),&cols);CHKERRQ(ierr); 2311 2312 /* read in my part of the matrix column indices */ 2313 nz = procsnz[0]; 2314 ierr = PetscMalloc(nz*sizeof(PetscInt),&ibuf);CHKERRQ(ierr); 2315 mycols = ibuf; 2316 if (size == 1) nz -= extra_rows; 2317 ierr = PetscBinaryRead(fd,mycols,nz,PETSC_INT);CHKERRQ(ierr); 2318 if (size == 1) for (i=0; i< extra_rows; i++) { mycols[nz+i] = M+i; } 2319 2320 /* read in every ones (except the last) and ship off */ 2321 for (i=1; i<size-1; i++) { 2322 nz = procsnz[i]; 2323 ierr = PetscBinaryRead(fd,cols,nz,PETSC_INT);CHKERRQ(ierr); 2324 ierr = MPI_Send(cols,nz,MPIU_INT,i,tag,comm);CHKERRQ(ierr); 2325 } 2326 /* read in the stuff for the last proc */ 2327 if (size != 1) { 2328 nz = procsnz[size-1] - extra_rows; /* the extra rows are not on the disk */ 2329 ierr = PetscBinaryRead(fd,cols,nz,PETSC_INT);CHKERRQ(ierr); 2330 for (i=0; i<extra_rows; i++) cols[nz+i] = M+i; 2331 ierr = MPI_Send(cols,nz+extra_rows,MPIU_INT,size-1,tag,comm);CHKERRQ(ierr); 2332 } 2333 ierr = PetscFree(cols);CHKERRQ(ierr); 2334 } else { /* procs[i], i>0 */ 2335 /* determine buffer space needed for message */ 2336 nz = 0; 2337 for (i=0; i<m; i++) { 2338 nz += locrowlens[i]; 2339 } 2340 ierr = PetscMalloc(nz*sizeof(PetscInt),&ibuf);CHKERRQ(ierr); 2341 mycols = ibuf; 2342 /* receive message of column indices*/ 2343 ierr = MPI_Recv(mycols,nz,MPIU_INT,0,tag,comm,&status);CHKERRQ(ierr); 2344 ierr = MPI_Get_count(&status,MPIU_INT,&maxnz);CHKERRQ(ierr); 2345 if (maxnz != nz) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_FILE_UNEXPECTED,"something is wrong with file"); 2346 } 2347 2348 /* loop over local rows, determining number of off diagonal entries */ 2349 ierr = PetscMalloc2(rend-rstart,PetscInt,&dlens,rend-rstart,PetscInt,&odlens);CHKERRQ(ierr); 2350 ierr = PetscMalloc3(Mbs,PetscInt,&mask,Mbs,PetscInt,&masked1,Mbs,PetscInt,&masked2);CHKERRQ(ierr); 2351 ierr = PetscMemzero(mask,Mbs*sizeof(PetscInt));CHKERRQ(ierr); 2352 ierr = PetscMemzero(masked1,Mbs*sizeof(PetscInt));CHKERRQ(ierr); 2353 ierr = PetscMemzero(masked2,Mbs*sizeof(PetscInt));CHKERRQ(ierr); 2354 rowcount = 0; 2355 nzcount = 0; 2356 for (i=0; i<mbs; i++) { 2357 dcount = 0; 2358 odcount = 0; 2359 for (j=0; j<bs; j++) { 2360 kmax = locrowlens[rowcount]; 2361 for (k=0; k<kmax; k++) { 2362 tmp = mycols[nzcount++]/bs; /* block col. index */ 2363 if (!mask[tmp]) { 2364 mask[tmp] = 1; 2365 if (tmp < rstart || tmp >= rend) masked2[odcount++] = tmp; /* entry in off-diag portion */ 2366 else masked1[dcount++] = tmp; /* entry in diag portion */ 2367 } 2368 } 2369 rowcount++; 2370 } 2371 2372 dlens[i] = dcount; /* d_nzz[i] */ 2373 odlens[i] = odcount; /* o_nzz[i] */ 2374 2375 /* zero out the mask elements we set */ 2376 for (j=0; j<dcount; j++) mask[masked1[j]] = 0; 2377 for (j=0; j<odcount; j++) mask[masked2[j]] = 0; 2378 } 2379 if (!sizesset) { 2380 ierr = MatSetSizes(newmat,m,m,M+extra_rows,N+extra_rows);CHKERRQ(ierr); 2381 } 2382 ierr = MatMPISBAIJSetPreallocation(newmat,bs,0,dlens,0,odlens);CHKERRQ(ierr); 2383 ierr = MatSetOption(newmat,MAT_IGNORE_LOWER_TRIANGULAR,PETSC_TRUE);CHKERRQ(ierr); 2384 2385 if (!rank) { 2386 ierr = PetscMalloc(maxnz*sizeof(PetscScalar),&buf);CHKERRQ(ierr); 2387 /* read in my part of the matrix numerical values */ 2388 nz = procsnz[0]; 2389 vals = buf; 2390 mycols = ibuf; 2391 if (size == 1) nz -= extra_rows; 2392 ierr = PetscBinaryRead(fd,vals,nz,PETSC_SCALAR);CHKERRQ(ierr); 2393 if (size == 1) for (i=0; i< extra_rows; i++) { vals[nz+i] = 1.0; } 2394 2395 /* insert into matrix */ 2396 jj = rstart*bs; 2397 for (i=0; i<m; i++) { 2398 ierr = MatSetValues(newmat,1,&jj,locrowlens[i],mycols,vals,INSERT_VALUES);CHKERRQ(ierr); 2399 mycols += locrowlens[i]; 2400 vals += locrowlens[i]; 2401 jj++; 2402 } 2403 2404 /* read in other processors (except the last one) and ship out */ 2405 for (i=1; i<size-1; i++) { 2406 nz = procsnz[i]; 2407 vals = buf; 2408 ierr = PetscBinaryRead(fd,vals,nz,PETSC_SCALAR);CHKERRQ(ierr); 2409 ierr = MPI_Send(vals,nz,MPIU_SCALAR,i,((PetscObject)newmat)->tag,comm);CHKERRQ(ierr); 2410 } 2411 /* the last proc */ 2412 if (size != 1){ 2413 nz = procsnz[i] - extra_rows; 2414 vals = buf; 2415 ierr = PetscBinaryRead(fd,vals,nz,PETSC_SCALAR);CHKERRQ(ierr); 2416 for (i=0; i<extra_rows; i++) vals[nz+i] = 1.0; 2417 ierr = MPI_Send(vals,nz+extra_rows,MPIU_SCALAR,size-1,((PetscObject)newmat)->tag,comm);CHKERRQ(ierr); 2418 } 2419 ierr = PetscFree(procsnz);CHKERRQ(ierr); 2420 2421 } else { 2422 /* receive numeric values */ 2423 ierr = PetscMalloc(nz*sizeof(PetscScalar),&buf);CHKERRQ(ierr); 2424 2425 /* receive message of values*/ 2426 vals = buf; 2427 mycols = ibuf; 2428 ierr = MPI_Recv(vals,nz,MPIU_SCALAR,0,((PetscObject)newmat)->tag,comm,&status);CHKERRQ(ierr); 2429 ierr = MPI_Get_count(&status,MPIU_SCALAR,&maxnz);CHKERRQ(ierr); 2430 if (maxnz != nz) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_FILE_UNEXPECTED,"something is wrong with file"); 2431 2432 /* insert into matrix */ 2433 jj = rstart*bs; 2434 for (i=0; i<m; i++) { 2435 ierr = MatSetValues_MPISBAIJ(newmat,1,&jj,locrowlens[i],mycols,vals,INSERT_VALUES);CHKERRQ(ierr); 2436 mycols += locrowlens[i]; 2437 vals += locrowlens[i]; 2438 jj++; 2439 } 2440 } 2441 2442 ierr = PetscFree(locrowlens);CHKERRQ(ierr); 2443 ierr = PetscFree(buf);CHKERRQ(ierr); 2444 ierr = PetscFree(ibuf);CHKERRQ(ierr); 2445 ierr = PetscFree2(rowners,browners);CHKERRQ(ierr); 2446 ierr = PetscFree2(dlens,odlens);CHKERRQ(ierr); 2447 ierr = PetscFree3(mask,masked1,masked2);CHKERRQ(ierr); 2448 ierr = MatAssemblyBegin(newmat,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 2449 ierr = MatAssemblyEnd(newmat,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 2450 PetscFunctionReturn(0); 2451 } 2452 2453 #undef __FUNCT__ 2454 #define __FUNCT__ "MatMPISBAIJSetHashTableFactor" 2455 /*XXXXX@ 2456 MatMPISBAIJSetHashTableFactor - Sets the factor required to compute the size of the HashTable. 2457 2458 Input Parameters: 2459 . mat - the matrix 2460 . fact - factor 2461 2462 Not Collective on Mat, each process can have a different hash factor 2463 2464 Level: advanced 2465 2466 Notes: 2467 This can also be set by the command line option: -mat_use_hash_table fact 2468 2469 .keywords: matrix, hashtable, factor, HT 2470 2471 .seealso: MatSetOption() 2472 @XXXXX*/ 2473 2474 2475 #undef __FUNCT__ 2476 #define __FUNCT__ "MatGetRowMaxAbs_MPISBAIJ" 2477 PetscErrorCode MatGetRowMaxAbs_MPISBAIJ(Mat A,Vec v,PetscInt idx[]) 2478 { 2479 Mat_MPISBAIJ *a = (Mat_MPISBAIJ*)A->data; 2480 Mat_SeqBAIJ *b = (Mat_SeqBAIJ*)(a->B)->data; 2481 PetscReal atmp; 2482 PetscReal *work,*svalues,*rvalues; 2483 PetscErrorCode ierr; 2484 PetscInt i,bs,mbs,*bi,*bj,brow,j,ncols,krow,kcol,col,row,Mbs,bcol; 2485 PetscMPIInt rank,size; 2486 PetscInt *rowners_bs,dest,count,source; 2487 PetscScalar *va; 2488 MatScalar *ba; 2489 MPI_Status stat; 2490 2491 PetscFunctionBegin; 2492 if (idx) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_SUP,"Send email to petsc-maint@mcs.anl.gov"); 2493 ierr = MatGetRowMaxAbs(a->A,v,PETSC_NULL);CHKERRQ(ierr); 2494 ierr = VecGetArray(v,&va);CHKERRQ(ierr); 2495 2496 ierr = MPI_Comm_size(((PetscObject)A)->comm,&size);CHKERRQ(ierr); 2497 ierr = MPI_Comm_rank(((PetscObject)A)->comm,&rank);CHKERRQ(ierr); 2498 2499 bs = A->rmap->bs; 2500 mbs = a->mbs; 2501 Mbs = a->Mbs; 2502 ba = b->a; 2503 bi = b->i; 2504 bj = b->j; 2505 2506 /* find ownerships */ 2507 rowners_bs = A->rmap->range; 2508 2509 /* each proc creates an array to be distributed */ 2510 ierr = PetscMalloc(bs*Mbs*sizeof(PetscReal),&work);CHKERRQ(ierr); 2511 ierr = PetscMemzero(work,bs*Mbs*sizeof(PetscReal));CHKERRQ(ierr); 2512 2513 /* row_max for B */ 2514 if (rank != size-1){ 2515 for (i=0; i<mbs; i++) { 2516 ncols = bi[1] - bi[0]; bi++; 2517 brow = bs*i; 2518 for (j=0; j<ncols; j++){ 2519 bcol = bs*(*bj); 2520 for (kcol=0; kcol<bs; kcol++){ 2521 col = bcol + kcol; /* local col index */ 2522 col += rowners_bs[rank+1]; /* global col index */ 2523 for (krow=0; krow<bs; krow++){ 2524 atmp = PetscAbsScalar(*ba); ba++; 2525 row = brow + krow; /* local row index */ 2526 if (PetscRealPart(va[row]) < atmp) va[row] = atmp; 2527 if (work[col] < atmp) work[col] = atmp; 2528 } 2529 } 2530 bj++; 2531 } 2532 } 2533 2534 /* send values to its owners */ 2535 for (dest=rank+1; dest<size; dest++){ 2536 svalues = work + rowners_bs[dest]; 2537 count = rowners_bs[dest+1]-rowners_bs[dest]; 2538 ierr = MPI_Send(svalues,count,MPIU_REAL,dest,rank,((PetscObject)A)->comm);CHKERRQ(ierr); 2539 } 2540 } 2541 2542 /* receive values */ 2543 if (rank){ 2544 rvalues = work; 2545 count = rowners_bs[rank+1]-rowners_bs[rank]; 2546 for (source=0; source<rank; source++){ 2547 ierr = MPI_Recv(rvalues,count,MPIU_REAL,MPI_ANY_SOURCE,MPI_ANY_TAG,((PetscObject)A)->comm,&stat);CHKERRQ(ierr); 2548 /* process values */ 2549 for (i=0; i<count; i++){ 2550 if (PetscRealPart(va[i]) < rvalues[i]) va[i] = rvalues[i]; 2551 } 2552 } 2553 } 2554 2555 ierr = VecRestoreArray(v,&va);CHKERRQ(ierr); 2556 ierr = PetscFree(work);CHKERRQ(ierr); 2557 PetscFunctionReturn(0); 2558 } 2559 2560 #undef __FUNCT__ 2561 #define __FUNCT__ "MatSOR_MPISBAIJ" 2562 PetscErrorCode MatSOR_MPISBAIJ(Mat matin,Vec bb,PetscReal omega,MatSORType flag,PetscReal fshift,PetscInt its,PetscInt lits,Vec xx) 2563 { 2564 Mat_MPISBAIJ *mat = (Mat_MPISBAIJ*)matin->data; 2565 PetscErrorCode ierr; 2566 PetscInt mbs=mat->mbs,bs=matin->rmap->bs; 2567 PetscScalar *x,*ptr,*from; 2568 Vec bb1; 2569 const PetscScalar *b; 2570 2571 PetscFunctionBegin; 2572 if (its <= 0 || lits <= 0) SETERRQ2(PETSC_COMM_SELF,PETSC_ERR_ARG_WRONG,"Relaxation requires global its %D and local its %D both positive",its,lits); 2573 if (bs > 1) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_SUP,"SSOR for block size > 1 is not yet implemented"); 2574 2575 if (flag == SOR_APPLY_UPPER) { 2576 ierr = (*mat->A->ops->sor)(mat->A,bb,omega,flag,fshift,lits,1,xx);CHKERRQ(ierr); 2577 PetscFunctionReturn(0); 2578 } 2579 2580 if ((flag & SOR_LOCAL_SYMMETRIC_SWEEP) == SOR_LOCAL_SYMMETRIC_SWEEP){ 2581 if ( flag & SOR_ZERO_INITIAL_GUESS ) { 2582 ierr = (*mat->A->ops->sor)(mat->A,bb,omega,flag,fshift,lits,lits,xx);CHKERRQ(ierr); 2583 its--; 2584 } 2585 2586 ierr = VecDuplicate(bb,&bb1);CHKERRQ(ierr); 2587 while (its--){ 2588 2589 /* lower triangular part: slvec0b = - B^T*xx */ 2590 ierr = (*mat->B->ops->multtranspose)(mat->B,xx,mat->slvec0b);CHKERRQ(ierr); 2591 2592 /* copy xx into slvec0a */ 2593 ierr = VecGetArray(mat->slvec0,&ptr);CHKERRQ(ierr); 2594 ierr = VecGetArray(xx,&x);CHKERRQ(ierr); 2595 ierr = PetscMemcpy(ptr,x,bs*mbs*sizeof(MatScalar));CHKERRQ(ierr); 2596 ierr = VecRestoreArray(mat->slvec0,&ptr);CHKERRQ(ierr); 2597 2598 ierr = VecScale(mat->slvec0,-1.0);CHKERRQ(ierr); 2599 2600 /* copy bb into slvec1a */ 2601 ierr = VecGetArray(mat->slvec1,&ptr);CHKERRQ(ierr); 2602 ierr = VecGetArrayRead(bb,&b);CHKERRQ(ierr); 2603 ierr = PetscMemcpy(ptr,b,bs*mbs*sizeof(MatScalar));CHKERRQ(ierr); 2604 ierr = VecRestoreArray(mat->slvec1,&ptr);CHKERRQ(ierr); 2605 2606 /* set slvec1b = 0 */ 2607 ierr = VecSet(mat->slvec1b,0.0);CHKERRQ(ierr); 2608 2609 ierr = VecScatterBegin(mat->sMvctx,mat->slvec0,mat->slvec1,ADD_VALUES,SCATTER_FORWARD);CHKERRQ(ierr); 2610 ierr = VecRestoreArray(xx,&x);CHKERRQ(ierr); 2611 ierr = VecRestoreArrayRead(bb,&b);CHKERRQ(ierr); 2612 ierr = VecScatterEnd(mat->sMvctx,mat->slvec0,mat->slvec1,ADD_VALUES,SCATTER_FORWARD);CHKERRQ(ierr); 2613 2614 /* upper triangular part: bb1 = bb1 - B*x */ 2615 ierr = (*mat->B->ops->multadd)(mat->B,mat->slvec1b,mat->slvec1a,bb1);CHKERRQ(ierr); 2616 2617 /* local diagonal sweep */ 2618 ierr = (*mat->A->ops->sor)(mat->A,bb1,omega,SOR_SYMMETRIC_SWEEP,fshift,lits,lits,xx);CHKERRQ(ierr); 2619 } 2620 ierr = VecDestroy(&bb1);CHKERRQ(ierr); 2621 } else if ((flag & SOR_LOCAL_FORWARD_SWEEP) && (its == 1) && (flag & SOR_ZERO_INITIAL_GUESS)){ 2622 ierr = (*mat->A->ops->sor)(mat->A,bb,omega,flag,fshift,lits,1,xx);CHKERRQ(ierr); 2623 } else if ((flag & SOR_LOCAL_BACKWARD_SWEEP) && (its == 1) && (flag & SOR_ZERO_INITIAL_GUESS)){ 2624 ierr = (*mat->A->ops->sor)(mat->A,bb,omega,flag,fshift,lits,1,xx);CHKERRQ(ierr); 2625 } else if (flag & SOR_EISENSTAT) { 2626 Vec xx1; 2627 PetscBool hasop; 2628 const PetscScalar *diag; 2629 PetscScalar *sl,scale = (omega - 2.0)/omega; 2630 PetscInt i,n; 2631 2632 if (!mat->xx1) { 2633 ierr = VecDuplicate(bb,&mat->xx1);CHKERRQ(ierr); 2634 ierr = VecDuplicate(bb,&mat->bb1);CHKERRQ(ierr); 2635 } 2636 xx1 = mat->xx1; 2637 bb1 = mat->bb1; 2638 2639 ierr = (*mat->A->ops->sor)(mat->A,bb,omega,(MatSORType)(SOR_ZERO_INITIAL_GUESS | SOR_LOCAL_BACKWARD_SWEEP),fshift,lits,1,xx);CHKERRQ(ierr); 2640 2641 if (!mat->diag) { 2642 /* this is wrong for same matrix with new nonzero values */ 2643 ierr = MatGetVecs(matin,&mat->diag,PETSC_NULL);CHKERRQ(ierr); 2644 ierr = MatGetDiagonal(matin,mat->diag);CHKERRQ(ierr); 2645 } 2646 ierr = MatHasOperation(matin,MATOP_MULT_DIAGONAL_BLOCK,&hasop);CHKERRQ(ierr); 2647 2648 if (hasop) { 2649 ierr = MatMultDiagonalBlock(matin,xx,bb1);CHKERRQ(ierr); 2650 ierr = VecAYPX(mat->slvec1a,scale,bb);CHKERRQ(ierr); 2651 } else { 2652 /* 2653 These two lines are replaced by code that may be a bit faster for a good compiler 2654 ierr = VecPointwiseMult(mat->slvec1a,mat->diag,xx);CHKERRQ(ierr); 2655 ierr = VecAYPX(mat->slvec1a,scale,bb);CHKERRQ(ierr); 2656 */ 2657 ierr = VecGetArray(mat->slvec1a,&sl);CHKERRQ(ierr); 2658 ierr = VecGetArrayRead(mat->diag,&diag);CHKERRQ(ierr); 2659 ierr = VecGetArrayRead(bb,&b);CHKERRQ(ierr); 2660 ierr = VecGetArray(xx,&x);CHKERRQ(ierr); 2661 ierr = VecGetLocalSize(xx,&n);CHKERRQ(ierr); 2662 if (omega == 1.0) { 2663 for (i=0; i<n; i++) { 2664 sl[i] = b[i] - diag[i]*x[i]; 2665 } 2666 ierr = PetscLogFlops(2.0*n);CHKERRQ(ierr); 2667 } else { 2668 for (i=0; i<n; i++) { 2669 sl[i] = b[i] + scale*diag[i]*x[i]; 2670 } 2671 ierr = PetscLogFlops(3.0*n);CHKERRQ(ierr); 2672 } 2673 ierr = VecRestoreArray(mat->slvec1a,&sl);CHKERRQ(ierr); 2674 ierr = VecRestoreArrayRead(mat->diag,&diag);CHKERRQ(ierr); 2675 ierr = VecRestoreArrayRead(bb,&b);CHKERRQ(ierr); 2676 ierr = VecRestoreArray(xx,&x);CHKERRQ(ierr); 2677 } 2678 2679 /* multiply off-diagonal portion of matrix */ 2680 ierr = VecSet(mat->slvec1b,0.0);CHKERRQ(ierr); 2681 ierr = (*mat->B->ops->multtranspose)(mat->B,xx,mat->slvec0b);CHKERRQ(ierr); 2682 ierr = VecGetArray(mat->slvec0,&from);CHKERRQ(ierr); 2683 ierr = VecGetArray(xx,&x);CHKERRQ(ierr); 2684 ierr = PetscMemcpy(from,x,bs*mbs*sizeof(MatScalar));CHKERRQ(ierr); 2685 ierr = VecRestoreArray(mat->slvec0,&from);CHKERRQ(ierr); 2686 ierr = VecRestoreArray(xx,&x);CHKERRQ(ierr); 2687 ierr = VecScatterBegin(mat->sMvctx,mat->slvec0,mat->slvec1,ADD_VALUES,SCATTER_FORWARD);CHKERRQ(ierr); 2688 ierr = VecScatterEnd(mat->sMvctx,mat->slvec0,mat->slvec1,ADD_VALUES,SCATTER_FORWARD);CHKERRQ(ierr); 2689 ierr = (*mat->B->ops->multadd)(mat->B,mat->slvec1b,mat->slvec1a,mat->slvec1a);CHKERRQ(ierr); 2690 2691 /* local sweep */ 2692 ierr = (*mat->A->ops->sor)(mat->A,mat->slvec1a,omega,(MatSORType)(SOR_ZERO_INITIAL_GUESS | SOR_LOCAL_FORWARD_SWEEP),fshift,lits,1,xx1);CHKERRQ(ierr); 2693 ierr = VecAXPY(xx,1.0,xx1);CHKERRQ(ierr); 2694 } else { 2695 SETERRQ(PETSC_COMM_SELF,PETSC_ERR_SUP,"MatSORType is not supported for SBAIJ matrix format"); 2696 } 2697 PetscFunctionReturn(0); 2698 } 2699 2700 #undef __FUNCT__ 2701 #define __FUNCT__ "MatSOR_MPISBAIJ_2comm" 2702 PetscErrorCode MatSOR_MPISBAIJ_2comm(Mat matin,Vec bb,PetscReal omega,MatSORType flag,PetscReal fshift,PetscInt its,PetscInt lits,Vec xx) 2703 { 2704 Mat_MPISBAIJ *mat = (Mat_MPISBAIJ*)matin->data; 2705 PetscErrorCode ierr; 2706 Vec lvec1,bb1; 2707 2708 PetscFunctionBegin; 2709 if (its <= 0 || lits <= 0) SETERRQ2(PETSC_COMM_SELF,PETSC_ERR_ARG_WRONG,"Relaxation requires global its %D and local its %D both positive",its,lits); 2710 if (matin->rmap->bs > 1) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_SUP,"SSOR for block size > 1 is not yet implemented"); 2711 2712 if ((flag & SOR_LOCAL_SYMMETRIC_SWEEP) == SOR_LOCAL_SYMMETRIC_SWEEP){ 2713 if ( flag & SOR_ZERO_INITIAL_GUESS ) { 2714 ierr = (*mat->A->ops->sor)(mat->A,bb,omega,flag,fshift,lits,lits,xx);CHKERRQ(ierr); 2715 its--; 2716 } 2717 2718 ierr = VecDuplicate(mat->lvec,&lvec1);CHKERRQ(ierr); 2719 ierr = VecDuplicate(bb,&bb1);CHKERRQ(ierr); 2720 while (its--){ 2721 ierr = VecScatterBegin(mat->Mvctx,xx,mat->lvec,INSERT_VALUES,SCATTER_FORWARD);CHKERRQ(ierr); 2722 2723 /* lower diagonal part: bb1 = bb - B^T*xx */ 2724 ierr = (*mat->B->ops->multtranspose)(mat->B,xx,lvec1);CHKERRQ(ierr); 2725 ierr = VecScale(lvec1,-1.0);CHKERRQ(ierr); 2726 2727 ierr = VecScatterEnd(mat->Mvctx,xx,mat->lvec,INSERT_VALUES,SCATTER_FORWARD);CHKERRQ(ierr); 2728 ierr = VecCopy(bb,bb1);CHKERRQ(ierr); 2729 ierr = VecScatterBegin(mat->Mvctx,lvec1,bb1,ADD_VALUES,SCATTER_REVERSE);CHKERRQ(ierr); 2730 2731 /* upper diagonal part: bb1 = bb1 - B*x */ 2732 ierr = VecScale(mat->lvec,-1.0);CHKERRQ(ierr); 2733 ierr = (*mat->B->ops->multadd)(mat->B,mat->lvec,bb1,bb1);CHKERRQ(ierr); 2734 2735 ierr = VecScatterEnd(mat->Mvctx,lvec1,bb1,ADD_VALUES,SCATTER_REVERSE);CHKERRQ(ierr); 2736 2737 /* diagonal sweep */ 2738 ierr = (*mat->A->ops->sor)(mat->A,bb1,omega,SOR_SYMMETRIC_SWEEP,fshift,lits,lits,xx);CHKERRQ(ierr); 2739 } 2740 ierr = VecDestroy(&lvec1);CHKERRQ(ierr); 2741 ierr = VecDestroy(&bb1);CHKERRQ(ierr); 2742 } else SETERRQ(PETSC_COMM_SELF,PETSC_ERR_SUP,"MatSORType is not supported for SBAIJ matrix format"); 2743 PetscFunctionReturn(0); 2744 } 2745 2746 #undef __FUNCT__ 2747 #define __FUNCT__ "MatCreateMPISBAIJWithArrays" 2748 /*@ 2749 MatCreateMPISBAIJWithArrays - creates a MPI SBAIJ matrix using arrays that contain in standard 2750 CSR format the local rows. 2751 2752 Collective on MPI_Comm 2753 2754 Input Parameters: 2755 + comm - MPI communicator 2756 . bs - the block size, only a block size of 1 is supported 2757 . m - number of local rows (Cannot be PETSC_DECIDE) 2758 . n - This value should be the same as the local size used in creating the 2759 x vector for the matrix-vector product y = Ax. (or PETSC_DECIDE to have 2760 calculated if N is given) For square matrices n is almost always m. 2761 . M - number of global rows (or PETSC_DETERMINE to have calculated if m is given) 2762 . N - number of global columns (or PETSC_DETERMINE to have calculated if n is given) 2763 . i - row indices 2764 . j - column indices 2765 - a - matrix values 2766 2767 Output Parameter: 2768 . mat - the matrix 2769 2770 Level: intermediate 2771 2772 Notes: 2773 The i, j, and a arrays ARE copied by this routine into the internal format used by PETSc; 2774 thus you CANNOT change the matrix entries by changing the values of a[] after you have 2775 called this routine. Use MatCreateMPIAIJWithSplitArrays() to avoid needing to copy the arrays. 2776 2777 The i and j indices are 0 based, and i indices are indices corresponding to the local j array. 2778 2779 .keywords: matrix, aij, compressed row, sparse, parallel 2780 2781 .seealso: MatCreate(), MatCreateSeqAIJ(), MatSetValues(), MatMPIAIJSetPreallocation(), MatMPIAIJSetPreallocationCSR(), 2782 MPIAIJ, MatCreateAIJ(), MatCreateMPIAIJWithSplitArrays() 2783 @*/ 2784 PetscErrorCode MatCreateMPISBAIJWithArrays(MPI_Comm comm,PetscInt bs,PetscInt m,PetscInt n,PetscInt M,PetscInt N,const PetscInt i[],const PetscInt j[],const PetscScalar a[],Mat *mat) 2785 { 2786 PetscErrorCode ierr; 2787 2788 2789 PetscFunctionBegin; 2790 if (i[0]) { 2791 SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"i (row indices) must start with 0"); 2792 } 2793 if (m < 0) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"local number of rows (m) cannot be PETSC_DECIDE, or negative"); 2794 ierr = MatCreate(comm,mat);CHKERRQ(ierr); 2795 ierr = MatSetSizes(*mat,m,n,M,N);CHKERRQ(ierr); 2796 ierr = MatSetType(*mat,MATMPISBAIJ);CHKERRQ(ierr); 2797 ierr = MatMPISBAIJSetPreallocationCSR(*mat,bs,i,j,a);CHKERRQ(ierr); 2798 PetscFunctionReturn(0); 2799 } 2800 2801 2802 #undef __FUNCT__ 2803 #define __FUNCT__ "MatMPISBAIJSetPreallocationCSR" 2804 /*@C 2805 MatMPISBAIJSetPreallocationCSR - Allocates memory for a sparse parallel matrix in BAIJ format 2806 (the default parallel PETSc format). 2807 2808 Collective on MPI_Comm 2809 2810 Input Parameters: 2811 + A - the matrix 2812 . bs - the block size 2813 . i - the indices into j for the start of each local row (starts with zero) 2814 . j - the column indices for each local row (starts with zero) these must be sorted for each row 2815 - v - optional values in the matrix 2816 2817 Level: developer 2818 2819 .keywords: matrix, aij, compressed row, sparse, parallel 2820 2821 .seealso: MatCreate(), MatCreateSeqAIJ(), MatSetValues(), MatMPIBAIJSetPreallocation(), MatCreateAIJ(), MPIAIJ 2822 @*/ 2823 PetscErrorCode MatMPISBAIJSetPreallocationCSR(Mat B,PetscInt bs,const PetscInt i[],const PetscInt j[], const PetscScalar v[]) 2824 { 2825 PetscErrorCode ierr; 2826 2827 PetscFunctionBegin; 2828 ierr = PetscTryMethod(B,"MatMPISBAIJSetPreallocationCSR_C",(Mat,PetscInt,const PetscInt[],const PetscInt[],const PetscScalar[]),(B,bs,i,j,v));CHKERRQ(ierr); 2829 PetscFunctionReturn(0); 2830 } 2831 2832 2833