1 #define PETSCMAT_DLL 2 3 #include "../src/mat/impls/baij/mpi/mpibaij.h" /*I "petscmat.h" I*/ 4 5 EXTERN PetscErrorCode MatSetUpMultiply_MPIBAIJ(Mat); 6 EXTERN PetscErrorCode DisAssemble_MPIBAIJ(Mat); 7 EXTERN PetscErrorCode MatIncreaseOverlap_MPIBAIJ(Mat,PetscInt,IS[],PetscInt); 8 EXTERN PetscErrorCode MatGetSubMatrices_MPIBAIJ(Mat,PetscInt,const IS[],const IS[],MatReuse,Mat *[]); 9 EXTERN PetscErrorCode MatGetValues_SeqBAIJ(Mat,PetscInt,const PetscInt[],PetscInt,const PetscInt [],PetscScalar []); 10 EXTERN PetscErrorCode MatSetValues_SeqBAIJ(Mat,PetscInt,const PetscInt[],PetscInt,const PetscInt [],const PetscScalar [],InsertMode); 11 EXTERN PetscErrorCode MatSetValuesBlocked_SeqBAIJ(Mat,PetscInt,const PetscInt[],PetscInt,const PetscInt[],const PetscScalar[],InsertMode); 12 EXTERN PetscErrorCode MatGetRow_SeqBAIJ(Mat,PetscInt,PetscInt*,PetscInt*[],PetscScalar*[]); 13 EXTERN PetscErrorCode MatRestoreRow_SeqBAIJ(Mat,PetscInt,PetscInt*,PetscInt*[],PetscScalar*[]); 14 EXTERN PetscErrorCode MatZeroRows_SeqBAIJ(Mat,PetscInt,const PetscInt[],PetscScalar); 15 16 #undef __FUNCT__ 17 #define __FUNCT__ "MatGetRowMaxAbs_MPIBAIJ" 18 PetscErrorCode MatGetRowMaxAbs_MPIBAIJ(Mat A,Vec v,PetscInt idx[]) 19 { 20 Mat_MPIBAIJ *a = (Mat_MPIBAIJ*)A->data; 21 PetscErrorCode ierr; 22 PetscInt i,*idxb = 0; 23 PetscScalar *va,*vb; 24 Vec vtmp; 25 26 PetscFunctionBegin; 27 ierr = MatGetRowMaxAbs(a->A,v,idx);CHKERRQ(ierr); 28 ierr = VecGetArray(v,&va);CHKERRQ(ierr); 29 if (idx) { 30 for (i=0; i<A->rmap->n; i++) {if (PetscAbsScalar(va[i])) idx[i] += A->cmap->rstart;} 31 } 32 33 ierr = VecCreateSeq(PETSC_COMM_SELF,A->rmap->n,&vtmp);CHKERRQ(ierr); 34 if (idx) {ierr = PetscMalloc(A->rmap->n*sizeof(PetscInt),&idxb);CHKERRQ(ierr);} 35 ierr = MatGetRowMaxAbs(a->B,vtmp,idxb);CHKERRQ(ierr); 36 ierr = VecGetArray(vtmp,&vb);CHKERRQ(ierr); 37 38 for (i=0; i<A->rmap->n; i++){ 39 if (PetscAbsScalar(va[i]) < PetscAbsScalar(vb[i])) {va[i] = vb[i]; if (idx) idx[i] = A->cmap->bs*a->garray[idxb[i]/A->cmap->bs] + (idxb[i] % A->cmap->bs);} 40 } 41 42 ierr = VecRestoreArray(v,&va);CHKERRQ(ierr); 43 ierr = VecRestoreArray(vtmp,&vb);CHKERRQ(ierr); 44 if (idxb) {ierr = PetscFree(idxb);CHKERRQ(ierr);} 45 ierr = VecDestroy(vtmp);CHKERRQ(ierr); 46 PetscFunctionReturn(0); 47 } 48 49 EXTERN_C_BEGIN 50 #undef __FUNCT__ 51 #define __FUNCT__ "MatStoreValues_MPIBAIJ" 52 PetscErrorCode PETSCMAT_DLLEXPORT MatStoreValues_MPIBAIJ(Mat mat) 53 { 54 Mat_MPIBAIJ *aij = (Mat_MPIBAIJ *)mat->data; 55 PetscErrorCode ierr; 56 57 PetscFunctionBegin; 58 ierr = MatStoreValues(aij->A);CHKERRQ(ierr); 59 ierr = MatStoreValues(aij->B);CHKERRQ(ierr); 60 PetscFunctionReturn(0); 61 } 62 EXTERN_C_END 63 64 EXTERN_C_BEGIN 65 #undef __FUNCT__ 66 #define __FUNCT__ "MatRetrieveValues_MPIBAIJ" 67 PetscErrorCode PETSCMAT_DLLEXPORT MatRetrieveValues_MPIBAIJ(Mat mat) 68 { 69 Mat_MPIBAIJ *aij = (Mat_MPIBAIJ *)mat->data; 70 PetscErrorCode ierr; 71 72 PetscFunctionBegin; 73 ierr = MatRetrieveValues(aij->A);CHKERRQ(ierr); 74 ierr = MatRetrieveValues(aij->B);CHKERRQ(ierr); 75 PetscFunctionReturn(0); 76 } 77 EXTERN_C_END 78 79 /* 80 Local utility routine that creates a mapping from the global column 81 number to the local number in the off-diagonal part of the local 82 storage of the matrix. This is done in a non scable way since the 83 length of colmap equals the global matrix length. 84 */ 85 #undef __FUNCT__ 86 #define __FUNCT__ "CreateColmap_MPIBAIJ_Private" 87 PetscErrorCode CreateColmap_MPIBAIJ_Private(Mat mat) 88 { 89 Mat_MPIBAIJ *baij = (Mat_MPIBAIJ*)mat->data; 90 Mat_SeqBAIJ *B = (Mat_SeqBAIJ*)baij->B->data; 91 PetscErrorCode ierr; 92 PetscInt nbs = B->nbs,i,bs=mat->rmap->bs; 93 94 PetscFunctionBegin; 95 #if defined (PETSC_USE_CTABLE) 96 ierr = PetscTableCreate(baij->nbs,&baij->colmap);CHKERRQ(ierr); 97 for (i=0; i<nbs; i++){ 98 ierr = PetscTableAdd(baij->colmap,baij->garray[i]+1,i*bs+1);CHKERRQ(ierr); 99 } 100 #else 101 ierr = PetscMalloc((baij->Nbs+1)*sizeof(PetscInt),&baij->colmap);CHKERRQ(ierr); 102 ierr = PetscLogObjectMemory(mat,baij->Nbs*sizeof(PetscInt));CHKERRQ(ierr); 103 ierr = PetscMemzero(baij->colmap,baij->Nbs*sizeof(PetscInt));CHKERRQ(ierr); 104 for (i=0; i<nbs; i++) baij->colmap[baij->garray[i]] = i*bs+1; 105 #endif 106 PetscFunctionReturn(0); 107 } 108 109 #define CHUNKSIZE 10 110 111 #define MatSetValues_SeqBAIJ_A_Private(row,col,value,addv) \ 112 { \ 113 \ 114 brow = row/bs; \ 115 rp = aj + ai[brow]; ap = aa + bs2*ai[brow]; \ 116 rmax = aimax[brow]; nrow = ailen[brow]; \ 117 bcol = col/bs; \ 118 ridx = row % bs; cidx = col % bs; \ 119 low = 0; high = nrow; \ 120 while (high-low > 3) { \ 121 t = (low+high)/2; \ 122 if (rp[t] > bcol) high = t; \ 123 else low = t; \ 124 } \ 125 for (_i=low; _i<high; _i++) { \ 126 if (rp[_i] > bcol) break; \ 127 if (rp[_i] == bcol) { \ 128 bap = ap + bs2*_i + bs*cidx + ridx; \ 129 if (addv == ADD_VALUES) *bap += value; \ 130 else *bap = value; \ 131 goto a_noinsert; \ 132 } \ 133 } \ 134 if (a->nonew == 1) goto a_noinsert; \ 135 if (a->nonew == -1) SETERRQ2(PETSC_ERR_ARG_OUTOFRANGE,"Inserting a new nonzero (%D, %D) into matrix", row, col); \ 136 MatSeqXAIJReallocateAIJ(A,a->mbs,bs2,nrow,brow,bcol,rmax,aa,ai,aj,rp,ap,aimax,a->nonew,MatScalar); \ 137 N = nrow++ - 1; \ 138 /* shift up all the later entries in this row */ \ 139 for (ii=N; ii>=_i; ii--) { \ 140 rp[ii+1] = rp[ii]; \ 141 ierr = PetscMemcpy(ap+bs2*(ii+1),ap+bs2*(ii),bs2*sizeof(MatScalar));CHKERRQ(ierr); \ 142 } \ 143 if (N>=_i) { ierr = PetscMemzero(ap+bs2*_i,bs2*sizeof(MatScalar));CHKERRQ(ierr); } \ 144 rp[_i] = bcol; \ 145 ap[bs2*_i + bs*cidx + ridx] = value; \ 146 a_noinsert:; \ 147 ailen[brow] = nrow; \ 148 } 149 150 #define MatSetValues_SeqBAIJ_B_Private(row,col,value,addv) \ 151 { \ 152 brow = row/bs; \ 153 rp = bj + bi[brow]; ap = ba + bs2*bi[brow]; \ 154 rmax = bimax[brow]; nrow = bilen[brow]; \ 155 bcol = col/bs; \ 156 ridx = row % bs; cidx = col % bs; \ 157 low = 0; high = nrow; \ 158 while (high-low > 3) { \ 159 t = (low+high)/2; \ 160 if (rp[t] > bcol) high = t; \ 161 else low = t; \ 162 } \ 163 for (_i=low; _i<high; _i++) { \ 164 if (rp[_i] > bcol) break; \ 165 if (rp[_i] == bcol) { \ 166 bap = ap + bs2*_i + bs*cidx + ridx; \ 167 if (addv == ADD_VALUES) *bap += value; \ 168 else *bap = value; \ 169 goto b_noinsert; \ 170 } \ 171 } \ 172 if (b->nonew == 1) goto b_noinsert; \ 173 if (b->nonew == -1) SETERRQ2(PETSC_ERR_ARG_OUTOFRANGE,"Inserting a new nonzero (%D, %D) into matrix", row, col); \ 174 MatSeqXAIJReallocateAIJ(B,b->mbs,bs2,nrow,brow,bcol,rmax,ba,bi,bj,rp,ap,bimax,b->nonew,MatScalar); \ 175 CHKMEMQ;\ 176 N = nrow++ - 1; \ 177 /* shift up all the later entries in this row */ \ 178 for (ii=N; ii>=_i; ii--) { \ 179 rp[ii+1] = rp[ii]; \ 180 ierr = PetscMemcpy(ap+bs2*(ii+1),ap+bs2*(ii),bs2*sizeof(MatScalar));CHKERRQ(ierr); \ 181 } \ 182 if (N>=_i) { ierr = PetscMemzero(ap+bs2*_i,bs2*sizeof(MatScalar));CHKERRQ(ierr);} \ 183 rp[_i] = bcol; \ 184 ap[bs2*_i + bs*cidx + ridx] = value; \ 185 b_noinsert:; \ 186 bilen[brow] = nrow; \ 187 } 188 189 #undef __FUNCT__ 190 #define __FUNCT__ "MatSetValues_MPIBAIJ" 191 PetscErrorCode MatSetValues_MPIBAIJ(Mat mat,PetscInt m,const PetscInt im[],PetscInt n,const PetscInt in[],const PetscScalar v[],InsertMode addv) 192 { 193 Mat_MPIBAIJ *baij = (Mat_MPIBAIJ*)mat->data; 194 MatScalar value; 195 PetscTruth roworiented = baij->roworiented; 196 PetscErrorCode ierr; 197 PetscInt i,j,row,col; 198 PetscInt rstart_orig=mat->rmap->rstart; 199 PetscInt rend_orig=mat->rmap->rend,cstart_orig=mat->cmap->rstart; 200 PetscInt cend_orig=mat->cmap->rend,bs=mat->rmap->bs; 201 202 /* Some Variables required in the macro */ 203 Mat A = baij->A; 204 Mat_SeqBAIJ *a = (Mat_SeqBAIJ*)(A)->data; 205 PetscInt *aimax=a->imax,*ai=a->i,*ailen=a->ilen,*aj=a->j; 206 MatScalar *aa=a->a; 207 208 Mat B = baij->B; 209 Mat_SeqBAIJ *b = (Mat_SeqBAIJ*)(B)->data; 210 PetscInt *bimax=b->imax,*bi=b->i,*bilen=b->ilen,*bj=b->j; 211 MatScalar *ba=b->a; 212 213 PetscInt *rp,ii,nrow,_i,rmax,N,brow,bcol; 214 PetscInt low,high,t,ridx,cidx,bs2=a->bs2; 215 MatScalar *ap,*bap; 216 217 PetscFunctionBegin; 218 for (i=0; i<m; i++) { 219 if (im[i] < 0) continue; 220 #if defined(PETSC_USE_DEBUG) 221 if (im[i] >= mat->rmap->N) SETERRQ2(PETSC_ERR_ARG_OUTOFRANGE,"Row too large: row %D max %D",im[i],mat->rmap->N-1); 222 #endif 223 if (im[i] >= rstart_orig && im[i] < rend_orig) { 224 row = im[i] - rstart_orig; 225 for (j=0; j<n; j++) { 226 if (in[j] >= cstart_orig && in[j] < cend_orig){ 227 col = in[j] - cstart_orig; 228 if (roworiented) value = v[i*n+j]; else value = v[i+j*m]; 229 MatSetValues_SeqBAIJ_A_Private(row,col,value,addv); 230 /* ierr = MatSetValues_SeqBAIJ(baij->A,1,&row,1,&col,&value,addv);CHKERRQ(ierr); */ 231 } else if (in[j] < 0) continue; 232 #if defined(PETSC_USE_DEBUG) 233 else if (in[j] >= mat->cmap->N) {SETERRQ2(PETSC_ERR_ARG_OUTOFRANGE,"Column too large: col %D max %D",in[i],mat->cmap->N-1);} 234 #endif 235 else { 236 if (mat->was_assembled) { 237 if (!baij->colmap) { 238 ierr = CreateColmap_MPIBAIJ_Private(mat);CHKERRQ(ierr); 239 } 240 #if defined (PETSC_USE_CTABLE) 241 ierr = PetscTableFind(baij->colmap,in[j]/bs + 1,&col);CHKERRQ(ierr); 242 col = col - 1; 243 #else 244 col = baij->colmap[in[j]/bs] - 1; 245 #endif 246 if (col < 0 && !((Mat_SeqBAIJ*)(baij->A->data))->nonew) { 247 ierr = DisAssemble_MPIBAIJ(mat);CHKERRQ(ierr); 248 col = in[j]; 249 /* Reinitialize the variables required by MatSetValues_SeqBAIJ_B_Private() */ 250 B = baij->B; 251 b = (Mat_SeqBAIJ*)(B)->data; 252 bimax=b->imax;bi=b->i;bilen=b->ilen;bj=b->j; 253 ba=b->a; 254 } else col += in[j]%bs; 255 } else col = in[j]; 256 if (roworiented) value = v[i*n+j]; else value = v[i+j*m]; 257 MatSetValues_SeqBAIJ_B_Private(row,col,value,addv); 258 /* ierr = MatSetValues_SeqBAIJ(baij->B,1,&row,1,&col,&value,addv);CHKERRQ(ierr); */ 259 } 260 } 261 } else { 262 if (!baij->donotstash) { 263 if (roworiented) { 264 ierr = MatStashValuesRow_Private(&mat->stash,im[i],n,in,v+i*n);CHKERRQ(ierr); 265 } else { 266 ierr = MatStashValuesCol_Private(&mat->stash,im[i],n,in,v+i,m);CHKERRQ(ierr); 267 } 268 } 269 } 270 } 271 PetscFunctionReturn(0); 272 } 273 274 #undef __FUNCT__ 275 #define __FUNCT__ "MatSetValuesBlocked_MPIBAIJ" 276 PetscErrorCode MatSetValuesBlocked_MPIBAIJ(Mat mat,PetscInt m,const PetscInt im[],PetscInt n,const PetscInt in[],const PetscScalar v[],InsertMode addv) 277 { 278 Mat_MPIBAIJ *baij = (Mat_MPIBAIJ*)mat->data; 279 const PetscScalar *value; 280 MatScalar *barray=baij->barray; 281 PetscTruth roworiented = baij->roworiented; 282 PetscErrorCode ierr; 283 PetscInt i,j,ii,jj,row,col,rstart=baij->rstartbs; 284 PetscInt rend=baij->rendbs,cstart=baij->cstartbs,stepval; 285 PetscInt cend=baij->cendbs,bs=mat->rmap->bs,bs2=baij->bs2; 286 287 PetscFunctionBegin; 288 if(!barray) { 289 ierr = PetscMalloc(bs2*sizeof(MatScalar),&barray);CHKERRQ(ierr); 290 baij->barray = barray; 291 } 292 293 if (roworiented) { 294 stepval = (n-1)*bs; 295 } else { 296 stepval = (m-1)*bs; 297 } 298 for (i=0; i<m; i++) { 299 if (im[i] < 0) continue; 300 #if defined(PETSC_USE_DEBUG) 301 if (im[i] >= baij->Mbs) SETERRQ2(PETSC_ERR_ARG_OUTOFRANGE,"Row too large, row %D max %D",im[i],baij->Mbs-1); 302 #endif 303 if (im[i] >= rstart && im[i] < rend) { 304 row = im[i] - rstart; 305 for (j=0; j<n; j++) { 306 /* If NumCol = 1 then a copy is not required */ 307 if ((roworiented) && (n == 1)) { 308 barray = (MatScalar*)v + i*bs2; 309 } else if((!roworiented) && (m == 1)) { 310 barray = (MatScalar*)v + j*bs2; 311 } else { /* Here a copy is required */ 312 if (roworiented) { 313 value = v + i*(stepval+bs)*bs + j*bs; 314 } else { 315 value = v + j*(stepval+bs)*bs + i*bs; 316 } 317 for (ii=0; ii<bs; ii++,value+=stepval) { 318 for (jj=0; jj<bs; jj++) { 319 *barray++ = *value++; 320 } 321 } 322 barray -=bs2; 323 } 324 325 if (in[j] >= cstart && in[j] < cend){ 326 col = in[j] - cstart; 327 ierr = MatSetValuesBlocked_SeqBAIJ(baij->A,1,&row,1,&col,barray,addv);CHKERRQ(ierr); 328 } 329 else if (in[j] < 0) continue; 330 #if defined(PETSC_USE_DEBUG) 331 else if (in[j] >= baij->Nbs) {SETERRQ2(PETSC_ERR_ARG_OUTOFRANGE,"Column too large, col %D max %D",in[j],baij->Nbs-1);} 332 #endif 333 else { 334 if (mat->was_assembled) { 335 if (!baij->colmap) { 336 ierr = CreateColmap_MPIBAIJ_Private(mat);CHKERRQ(ierr); 337 } 338 339 #if defined(PETSC_USE_DEBUG) 340 #if defined (PETSC_USE_CTABLE) 341 { PetscInt data; 342 ierr = PetscTableFind(baij->colmap,in[j]+1,&data);CHKERRQ(ierr); 343 if ((data - 1) % bs) SETERRQ(PETSC_ERR_PLIB,"Incorrect colmap"); 344 } 345 #else 346 if ((baij->colmap[in[j]] - 1) % bs) SETERRQ(PETSC_ERR_PLIB,"Incorrect colmap"); 347 #endif 348 #endif 349 #if defined (PETSC_USE_CTABLE) 350 ierr = PetscTableFind(baij->colmap,in[j]+1,&col);CHKERRQ(ierr); 351 col = (col - 1)/bs; 352 #else 353 col = (baij->colmap[in[j]] - 1)/bs; 354 #endif 355 if (col < 0 && !((Mat_SeqBAIJ*)(baij->A->data))->nonew) { 356 ierr = DisAssemble_MPIBAIJ(mat);CHKERRQ(ierr); 357 col = in[j]; 358 } 359 } 360 else col = in[j]; 361 ierr = MatSetValuesBlocked_SeqBAIJ(baij->B,1,&row,1,&col,barray,addv);CHKERRQ(ierr); 362 } 363 } 364 } else { 365 if (!baij->donotstash) { 366 if (roworiented) { 367 ierr = MatStashValuesRowBlocked_Private(&mat->bstash,im[i],n,in,v,m,n,i);CHKERRQ(ierr); 368 } else { 369 ierr = MatStashValuesColBlocked_Private(&mat->bstash,im[i],n,in,v,m,n,i);CHKERRQ(ierr); 370 } 371 } 372 } 373 } 374 PetscFunctionReturn(0); 375 } 376 377 #define HASH_KEY 0.6180339887 378 #define HASH(size,key,tmp) (tmp = (key)*HASH_KEY,(PetscInt)((size)*(tmp-(PetscInt)tmp))) 379 /* #define HASH(size,key) ((PetscInt)((size)*fmod(((key)*HASH_KEY),1))) */ 380 /* #define HASH(size,key,tmp) ((PetscInt)((size)*fmod(((key)*HASH_KEY),1))) */ 381 #undef __FUNCT__ 382 #define __FUNCT__ "MatSetValues_MPIBAIJ_HT" 383 PetscErrorCode MatSetValues_MPIBAIJ_HT(Mat mat,PetscInt m,const PetscInt im[],PetscInt n,const PetscInt in[],const PetscScalar v[],InsertMode addv) 384 { 385 Mat_MPIBAIJ *baij = (Mat_MPIBAIJ*)mat->data; 386 PetscTruth roworiented = baij->roworiented; 387 PetscErrorCode ierr; 388 PetscInt i,j,row,col; 389 PetscInt rstart_orig=mat->rmap->rstart; 390 PetscInt rend_orig=mat->rmap->rend,Nbs=baij->Nbs; 391 PetscInt h1,key,size=baij->ht_size,bs=mat->rmap->bs,*HT=baij->ht,idx; 392 PetscReal tmp; 393 MatScalar **HD = baij->hd,value; 394 #if defined(PETSC_USE_DEBUG) 395 PetscInt total_ct=baij->ht_total_ct,insert_ct=baij->ht_insert_ct; 396 #endif 397 398 PetscFunctionBegin; 399 400 for (i=0; i<m; i++) { 401 #if defined(PETSC_USE_DEBUG) 402 if (im[i] < 0) SETERRQ(PETSC_ERR_ARG_OUTOFRANGE,"Negative row"); 403 if (im[i] >= mat->rmap->N) SETERRQ2(PETSC_ERR_ARG_OUTOFRANGE,"Row too large: row %D max %D",im[i],mat->rmap->N-1); 404 #endif 405 row = im[i]; 406 if (row >= rstart_orig && row < rend_orig) { 407 for (j=0; j<n; j++) { 408 col = in[j]; 409 if (roworiented) value = v[i*n+j]; else value = v[i+j*m]; 410 /* Look up PetscInto the Hash Table */ 411 key = (row/bs)*Nbs+(col/bs)+1; 412 h1 = HASH(size,key,tmp); 413 414 415 idx = h1; 416 #if defined(PETSC_USE_DEBUG) 417 insert_ct++; 418 total_ct++; 419 if (HT[idx] != key) { 420 for (idx=h1; (idx<size) && (HT[idx]!=key); idx++,total_ct++); 421 if (idx == size) { 422 for (idx=0; (idx<h1) && (HT[idx]!=key); idx++,total_ct++); 423 if (idx == h1) { 424 SETERRQ2(PETSC_ERR_ARG_OUTOFRANGE,"(%D,%D) has no entry in the hash table", row, col); 425 } 426 } 427 } 428 #else 429 if (HT[idx] != key) { 430 for (idx=h1; (idx<size) && (HT[idx]!=key); idx++); 431 if (idx == size) { 432 for (idx=0; (idx<h1) && (HT[idx]!=key); idx++); 433 if (idx == h1) { 434 SETERRQ2(PETSC_ERR_ARG_OUTOFRANGE,"(%D,%D) has no entry in the hash table", row, col); 435 } 436 } 437 } 438 #endif 439 /* A HASH table entry is found, so insert the values at the correct address */ 440 if (addv == ADD_VALUES) *(HD[idx]+ (col % bs)*bs + (row % bs)) += value; 441 else *(HD[idx]+ (col % bs)*bs + (row % bs)) = value; 442 } 443 } else { 444 if (!baij->donotstash) { 445 if (roworiented) { 446 ierr = MatStashValuesRow_Private(&mat->stash,im[i],n,in,v+i*n);CHKERRQ(ierr); 447 } else { 448 ierr = MatStashValuesCol_Private(&mat->stash,im[i],n,in,v+i,m);CHKERRQ(ierr); 449 } 450 } 451 } 452 } 453 #if defined(PETSC_USE_DEBUG) 454 baij->ht_total_ct = total_ct; 455 baij->ht_insert_ct = insert_ct; 456 #endif 457 PetscFunctionReturn(0); 458 } 459 460 #undef __FUNCT__ 461 #define __FUNCT__ "MatSetValuesBlocked_MPIBAIJ_HT" 462 PetscErrorCode MatSetValuesBlocked_MPIBAIJ_HT(Mat mat,PetscInt m,const PetscInt im[],PetscInt n,const PetscInt in[],const PetscScalar v[],InsertMode addv) 463 { 464 Mat_MPIBAIJ *baij = (Mat_MPIBAIJ*)mat->data; 465 PetscTruth roworiented = baij->roworiented; 466 PetscErrorCode ierr; 467 PetscInt i,j,ii,jj,row,col; 468 PetscInt rstart=baij->rstartbs; 469 PetscInt rend=mat->rmap->rend,stepval,bs=mat->rmap->bs,bs2=baij->bs2,nbs2=n*bs2; 470 PetscInt h1,key,size=baij->ht_size,idx,*HT=baij->ht,Nbs=baij->Nbs; 471 PetscReal tmp; 472 MatScalar **HD = baij->hd,*baij_a; 473 const PetscScalar *v_t,*value; 474 #if defined(PETSC_USE_DEBUG) 475 PetscInt total_ct=baij->ht_total_ct,insert_ct=baij->ht_insert_ct; 476 #endif 477 478 PetscFunctionBegin; 479 480 if (roworiented) { 481 stepval = (n-1)*bs; 482 } else { 483 stepval = (m-1)*bs; 484 } 485 for (i=0; i<m; i++) { 486 #if defined(PETSC_USE_DEBUG) 487 if (im[i] < 0) SETERRQ1(PETSC_ERR_ARG_OUTOFRANGE,"Negative row: %D",im[i]); 488 if (im[i] >= baij->Mbs) SETERRQ2(PETSC_ERR_ARG_OUTOFRANGE,"Row too large: row %D max %D",im[i],baij->Mbs-1); 489 #endif 490 row = im[i]; 491 v_t = v + i*nbs2; 492 if (row >= rstart && row < rend) { 493 for (j=0; j<n; j++) { 494 col = in[j]; 495 496 /* Look up into the Hash Table */ 497 key = row*Nbs+col+1; 498 h1 = HASH(size,key,tmp); 499 500 idx = h1; 501 #if defined(PETSC_USE_DEBUG) 502 total_ct++; 503 insert_ct++; 504 if (HT[idx] != key) { 505 for (idx=h1; (idx<size) && (HT[idx]!=key); idx++,total_ct++); 506 if (idx == size) { 507 for (idx=0; (idx<h1) && (HT[idx]!=key); idx++,total_ct++); 508 if (idx == h1) { 509 SETERRQ2(PETSC_ERR_ARG_OUTOFRANGE,"(%D,%D) has no entry in the hash table", row, col); 510 } 511 } 512 } 513 #else 514 if (HT[idx] != key) { 515 for (idx=h1; (idx<size) && (HT[idx]!=key); idx++); 516 if (idx == size) { 517 for (idx=0; (idx<h1) && (HT[idx]!=key); idx++); 518 if (idx == h1) { 519 SETERRQ2(PETSC_ERR_ARG_OUTOFRANGE,"(%D,%D) has no entry in the hash table", row, col); 520 } 521 } 522 } 523 #endif 524 baij_a = HD[idx]; 525 if (roworiented) { 526 /*value = v + i*(stepval+bs)*bs + j*bs;*/ 527 /* value = v + (i*(stepval+bs)+j)*bs; */ 528 value = v_t; 529 v_t += bs; 530 if (addv == ADD_VALUES) { 531 for (ii=0; ii<bs; ii++,value+=stepval) { 532 for (jj=ii; jj<bs2; jj+=bs) { 533 baij_a[jj] += *value++; 534 } 535 } 536 } else { 537 for (ii=0; ii<bs; ii++,value+=stepval) { 538 for (jj=ii; jj<bs2; jj+=bs) { 539 baij_a[jj] = *value++; 540 } 541 } 542 } 543 } else { 544 value = v + j*(stepval+bs)*bs + i*bs; 545 if (addv == ADD_VALUES) { 546 for (ii=0; ii<bs; ii++,value+=stepval,baij_a+=bs) { 547 for (jj=0; jj<bs; jj++) { 548 baij_a[jj] += *value++; 549 } 550 } 551 } else { 552 for (ii=0; ii<bs; ii++,value+=stepval,baij_a+=bs) { 553 for (jj=0; jj<bs; jj++) { 554 baij_a[jj] = *value++; 555 } 556 } 557 } 558 } 559 } 560 } else { 561 if (!baij->donotstash) { 562 if (roworiented) { 563 ierr = MatStashValuesRowBlocked_Private(&mat->bstash,im[i],n,in,v,m,n,i);CHKERRQ(ierr); 564 } else { 565 ierr = MatStashValuesColBlocked_Private(&mat->bstash,im[i],n,in,v,m,n,i);CHKERRQ(ierr); 566 } 567 } 568 } 569 } 570 #if defined(PETSC_USE_DEBUG) 571 baij->ht_total_ct = total_ct; 572 baij->ht_insert_ct = insert_ct; 573 #endif 574 PetscFunctionReturn(0); 575 } 576 577 #undef __FUNCT__ 578 #define __FUNCT__ "MatGetValues_MPIBAIJ" 579 PetscErrorCode MatGetValues_MPIBAIJ(Mat mat,PetscInt m,const PetscInt idxm[],PetscInt n,const PetscInt idxn[],PetscScalar v[]) 580 { 581 Mat_MPIBAIJ *baij = (Mat_MPIBAIJ*)mat->data; 582 PetscErrorCode ierr; 583 PetscInt bs=mat->rmap->bs,i,j,bsrstart = mat->rmap->rstart,bsrend = mat->rmap->rend; 584 PetscInt bscstart = mat->cmap->rstart,bscend = mat->cmap->rend,row,col,data; 585 586 PetscFunctionBegin; 587 for (i=0; i<m; i++) { 588 if (idxm[i] < 0) continue; /* SETERRQ1(PETSC_ERR_ARG_OUTOFRANGE,"Negative row: %D",idxm[i]);*/ 589 if (idxm[i] >= mat->rmap->N) SETERRQ2(PETSC_ERR_ARG_OUTOFRANGE,"Row too large: row %D max %D",idxm[i],mat->rmap->N-1); 590 if (idxm[i] >= bsrstart && idxm[i] < bsrend) { 591 row = idxm[i] - bsrstart; 592 for (j=0; j<n; j++) { 593 if (idxn[j] < 0) continue; /* SETERRQ1(PETSC_ERR_ARG_OUTOFRANGE,"Negative column: %D",idxn[j]); */ 594 if (idxn[j] >= mat->cmap->N) SETERRQ2(PETSC_ERR_ARG_OUTOFRANGE,"Column too large: col %D max %D",idxn[j],mat->cmap->N-1); 595 if (idxn[j] >= bscstart && idxn[j] < bscend){ 596 col = idxn[j] - bscstart; 597 ierr = MatGetValues_SeqBAIJ(baij->A,1,&row,1,&col,v+i*n+j);CHKERRQ(ierr); 598 } else { 599 if (!baij->colmap) { 600 ierr = CreateColmap_MPIBAIJ_Private(mat);CHKERRQ(ierr); 601 } 602 #if defined (PETSC_USE_CTABLE) 603 ierr = PetscTableFind(baij->colmap,idxn[j]/bs+1,&data);CHKERRQ(ierr); 604 data --; 605 #else 606 data = baij->colmap[idxn[j]/bs]-1; 607 #endif 608 if((data < 0) || (baij->garray[data/bs] != idxn[j]/bs)) *(v+i*n+j) = 0.0; 609 else { 610 col = data + idxn[j]%bs; 611 ierr = MatGetValues_SeqBAIJ(baij->B,1,&row,1,&col,v+i*n+j);CHKERRQ(ierr); 612 } 613 } 614 } 615 } else { 616 SETERRQ(PETSC_ERR_SUP,"Only local values currently supported"); 617 } 618 } 619 PetscFunctionReturn(0); 620 } 621 622 #undef __FUNCT__ 623 #define __FUNCT__ "MatNorm_MPIBAIJ" 624 PetscErrorCode MatNorm_MPIBAIJ(Mat mat,NormType type,PetscReal *nrm) 625 { 626 Mat_MPIBAIJ *baij = (Mat_MPIBAIJ*)mat->data; 627 Mat_SeqBAIJ *amat = (Mat_SeqBAIJ*)baij->A->data,*bmat = (Mat_SeqBAIJ*)baij->B->data; 628 PetscErrorCode ierr; 629 PetscInt i,j,bs2=baij->bs2,bs=baij->A->rmap->bs,nz,row,col; 630 PetscReal sum = 0.0; 631 MatScalar *v; 632 633 PetscFunctionBegin; 634 if (baij->size == 1) { 635 ierr = MatNorm(baij->A,type,nrm);CHKERRQ(ierr); 636 } else { 637 if (type == NORM_FROBENIUS) { 638 v = amat->a; 639 nz = amat->nz*bs2; 640 for (i=0; i<nz; i++) { 641 #if defined(PETSC_USE_COMPLEX) 642 sum += PetscRealPart(PetscConj(*v)*(*v)); v++; 643 #else 644 sum += (*v)*(*v); v++; 645 #endif 646 } 647 v = bmat->a; 648 nz = bmat->nz*bs2; 649 for (i=0; i<nz; i++) { 650 #if defined(PETSC_USE_COMPLEX) 651 sum += PetscRealPart(PetscConj(*v)*(*v)); v++; 652 #else 653 sum += (*v)*(*v); v++; 654 #endif 655 } 656 ierr = MPI_Allreduce(&sum,nrm,1,MPIU_REAL,MPI_SUM,((PetscObject)mat)->comm);CHKERRQ(ierr); 657 *nrm = sqrt(*nrm); 658 } else if (type == NORM_1) { /* max column sum */ 659 PetscReal *tmp,*tmp2; 660 PetscInt *jj,*garray=baij->garray,cstart=baij->rstartbs; 661 ierr = PetscMalloc((2*mat->cmap->N+1)*sizeof(PetscReal),&tmp);CHKERRQ(ierr); 662 tmp2 = tmp + mat->cmap->N; 663 ierr = PetscMemzero(tmp,mat->cmap->N*sizeof(PetscReal));CHKERRQ(ierr); 664 v = amat->a; jj = amat->j; 665 for (i=0; i<amat->nz; i++) { 666 for (j=0; j<bs; j++){ 667 col = bs*(cstart + *jj) + j; /* column index */ 668 for (row=0; row<bs; row++){ 669 tmp[col] += PetscAbsScalar(*v); v++; 670 } 671 } 672 jj++; 673 } 674 v = bmat->a; jj = bmat->j; 675 for (i=0; i<bmat->nz; i++) { 676 for (j=0; j<bs; j++){ 677 col = bs*garray[*jj] + j; 678 for (row=0; row<bs; row++){ 679 tmp[col] += PetscAbsScalar(*v); v++; 680 } 681 } 682 jj++; 683 } 684 ierr = MPI_Allreduce(tmp,tmp2,mat->cmap->N,MPIU_REAL,MPI_SUM,((PetscObject)mat)->comm);CHKERRQ(ierr); 685 *nrm = 0.0; 686 for (j=0; j<mat->cmap->N; j++) { 687 if (tmp2[j] > *nrm) *nrm = tmp2[j]; 688 } 689 ierr = PetscFree(tmp);CHKERRQ(ierr); 690 } else if (type == NORM_INFINITY) { /* max row sum */ 691 PetscReal *sums; 692 ierr = PetscMalloc(bs*sizeof(PetscReal),&sums);CHKERRQ(ierr) 693 sum = 0.0; 694 for (j=0; j<amat->mbs; j++) { 695 for (row=0; row<bs; row++) sums[row] = 0.0; 696 v = amat->a + bs2*amat->i[j]; 697 nz = amat->i[j+1]-amat->i[j]; 698 for (i=0; i<nz; i++) { 699 for (col=0; col<bs; col++){ 700 for (row=0; row<bs; row++){ 701 sums[row] += PetscAbsScalar(*v); v++; 702 } 703 } 704 } 705 v = bmat->a + bs2*bmat->i[j]; 706 nz = bmat->i[j+1]-bmat->i[j]; 707 for (i=0; i<nz; i++) { 708 for (col=0; col<bs; col++){ 709 for (row=0; row<bs; row++){ 710 sums[row] += PetscAbsScalar(*v); v++; 711 } 712 } 713 } 714 for (row=0; row<bs; row++){ 715 if (sums[row] > sum) sum = sums[row]; 716 } 717 } 718 ierr = MPI_Allreduce(&sum,nrm,1,MPIU_REAL,MPI_MAX,((PetscObject)mat)->comm);CHKERRQ(ierr); 719 ierr = PetscFree(sums);CHKERRQ(ierr); 720 } else { 721 SETERRQ(PETSC_ERR_SUP,"No support for this norm yet"); 722 } 723 } 724 PetscFunctionReturn(0); 725 } 726 727 /* 728 Creates the hash table, and sets the table 729 This table is created only once. 730 If new entried need to be added to the matrix 731 then the hash table has to be destroyed and 732 recreated. 733 */ 734 #undef __FUNCT__ 735 #define __FUNCT__ "MatCreateHashTable_MPIBAIJ_Private" 736 PetscErrorCode MatCreateHashTable_MPIBAIJ_Private(Mat mat,PetscReal factor) 737 { 738 Mat_MPIBAIJ *baij = (Mat_MPIBAIJ*)mat->data; 739 Mat A = baij->A,B=baij->B; 740 Mat_SeqBAIJ *a=(Mat_SeqBAIJ *)A->data,*b=(Mat_SeqBAIJ *)B->data; 741 PetscInt i,j,k,nz=a->nz+b->nz,h1,*ai=a->i,*aj=a->j,*bi=b->i,*bj=b->j; 742 PetscErrorCode ierr; 743 PetscInt size,bs2=baij->bs2,rstart=baij->rstartbs; 744 PetscInt cstart=baij->cstartbs,*garray=baij->garray,row,col,Nbs=baij->Nbs; 745 PetscInt *HT,key; 746 MatScalar **HD; 747 PetscReal tmp; 748 #if defined(PETSC_USE_INFO) 749 PetscInt ct=0,max=0; 750 #endif 751 752 PetscFunctionBegin; 753 baij->ht_size=(PetscInt)(factor*nz); 754 size = baij->ht_size; 755 756 if (baij->ht) { 757 PetscFunctionReturn(0); 758 } 759 760 /* Allocate Memory for Hash Table */ 761 ierr = PetscMalloc((size)*(sizeof(PetscInt)+sizeof(MatScalar*))+1,&baij->hd);CHKERRQ(ierr); 762 baij->ht = (PetscInt*)(baij->hd + size); 763 HD = baij->hd; 764 HT = baij->ht; 765 766 767 ierr = PetscMemzero(HD,size*(sizeof(PetscInt)+sizeof(PetscScalar*)));CHKERRQ(ierr); 768 769 770 /* Loop Over A */ 771 for (i=0; i<a->mbs; i++) { 772 for (j=ai[i]; j<ai[i+1]; j++) { 773 row = i+rstart; 774 col = aj[j]+cstart; 775 776 key = row*Nbs + col + 1; 777 h1 = HASH(size,key,tmp); 778 for (k=0; k<size; k++){ 779 if (!HT[(h1+k)%size]) { 780 HT[(h1+k)%size] = key; 781 HD[(h1+k)%size] = a->a + j*bs2; 782 break; 783 #if defined(PETSC_USE_INFO) 784 } else { 785 ct++; 786 #endif 787 } 788 } 789 #if defined(PETSC_USE_INFO) 790 if (k> max) max = k; 791 #endif 792 } 793 } 794 /* Loop Over B */ 795 for (i=0; i<b->mbs; i++) { 796 for (j=bi[i]; j<bi[i+1]; j++) { 797 row = i+rstart; 798 col = garray[bj[j]]; 799 key = row*Nbs + col + 1; 800 h1 = HASH(size,key,tmp); 801 for (k=0; k<size; k++){ 802 if (!HT[(h1+k)%size]) { 803 HT[(h1+k)%size] = key; 804 HD[(h1+k)%size] = b->a + j*bs2; 805 break; 806 #if defined(PETSC_USE_INFO) 807 } else { 808 ct++; 809 #endif 810 } 811 } 812 #if defined(PETSC_USE_INFO) 813 if (k> max) max = k; 814 #endif 815 } 816 } 817 818 /* Print Summary */ 819 #if defined(PETSC_USE_INFO) 820 for (i=0,j=0; i<size; i++) { 821 if (HT[i]) {j++;} 822 } 823 ierr = PetscInfo2(mat,"Average Search = %5.2f,max search = %D\n",(!j)? 0.0:((PetscReal)(ct+j))/j,max);CHKERRQ(ierr); 824 #endif 825 PetscFunctionReturn(0); 826 } 827 828 #undef __FUNCT__ 829 #define __FUNCT__ "MatAssemblyBegin_MPIBAIJ" 830 PetscErrorCode MatAssemblyBegin_MPIBAIJ(Mat mat,MatAssemblyType mode) 831 { 832 Mat_MPIBAIJ *baij = (Mat_MPIBAIJ*)mat->data; 833 PetscErrorCode ierr; 834 PetscInt nstash,reallocs; 835 InsertMode addv; 836 837 PetscFunctionBegin; 838 if (baij->donotstash) { 839 PetscFunctionReturn(0); 840 } 841 842 /* make sure all processors are either in INSERTMODE or ADDMODE */ 843 ierr = MPI_Allreduce(&mat->insertmode,&addv,1,MPI_INT,MPI_BOR,((PetscObject)mat)->comm);CHKERRQ(ierr); 844 if (addv == (ADD_VALUES|INSERT_VALUES)) { 845 SETERRQ(PETSC_ERR_ARG_WRONGSTATE,"Some processors inserted others added"); 846 } 847 mat->insertmode = addv; /* in case this processor had no cache */ 848 849 ierr = MatStashScatterBegin_Private(mat,&mat->stash,mat->rmap->range);CHKERRQ(ierr); 850 ierr = MatStashScatterBegin_Private(mat,&mat->bstash,baij->rangebs);CHKERRQ(ierr); 851 ierr = MatStashGetInfo_Private(&mat->stash,&nstash,&reallocs);CHKERRQ(ierr); 852 ierr = PetscInfo2(mat,"Stash has %D entries,uses %D mallocs.\n",nstash,reallocs);CHKERRQ(ierr); 853 ierr = MatStashGetInfo_Private(&mat->bstash,&nstash,&reallocs);CHKERRQ(ierr); 854 ierr = PetscInfo2(mat,"Block-Stash has %D entries, uses %D mallocs.\n",nstash,reallocs);CHKERRQ(ierr); 855 PetscFunctionReturn(0); 856 } 857 858 #undef __FUNCT__ 859 #define __FUNCT__ "MatAssemblyEnd_MPIBAIJ" 860 PetscErrorCode MatAssemblyEnd_MPIBAIJ(Mat mat,MatAssemblyType mode) 861 { 862 Mat_MPIBAIJ *baij=(Mat_MPIBAIJ*)mat->data; 863 Mat_SeqBAIJ *a=(Mat_SeqBAIJ*)baij->A->data; 864 PetscErrorCode ierr; 865 PetscInt i,j,rstart,ncols,flg,bs2=baij->bs2; 866 PetscInt *row,*col; 867 PetscTruth r1,r2,r3,other_disassembled; 868 MatScalar *val; 869 InsertMode addv = mat->insertmode; 870 PetscMPIInt n; 871 872 /* do not use 'b=(Mat_SeqBAIJ*)baij->B->data' as B can be reset in disassembly */ 873 PetscFunctionBegin; 874 if (!baij->donotstash) { 875 while (1) { 876 ierr = MatStashScatterGetMesg_Private(&mat->stash,&n,&row,&col,&val,&flg);CHKERRQ(ierr); 877 if (!flg) break; 878 879 for (i=0; i<n;) { 880 /* Now identify the consecutive vals belonging to the same row */ 881 for (j=i,rstart=row[j]; j<n; j++) { if (row[j] != rstart) break; } 882 if (j < n) ncols = j-i; 883 else ncols = n-i; 884 /* Now assemble all these values with a single function call */ 885 ierr = MatSetValues_MPIBAIJ(mat,1,row+i,ncols,col+i,val+i,addv);CHKERRQ(ierr); 886 i = j; 887 } 888 } 889 ierr = MatStashScatterEnd_Private(&mat->stash);CHKERRQ(ierr); 890 /* Now process the block-stash. Since the values are stashed column-oriented, 891 set the roworiented flag to column oriented, and after MatSetValues() 892 restore the original flags */ 893 r1 = baij->roworiented; 894 r2 = a->roworiented; 895 r3 = ((Mat_SeqBAIJ*)baij->B->data)->roworiented; 896 baij->roworiented = PETSC_FALSE; 897 a->roworiented = PETSC_FALSE; 898 (((Mat_SeqBAIJ*)baij->B->data))->roworiented = PETSC_FALSE; /* b->roworiented */ 899 while (1) { 900 ierr = MatStashScatterGetMesg_Private(&mat->bstash,&n,&row,&col,&val,&flg);CHKERRQ(ierr); 901 if (!flg) break; 902 903 for (i=0; i<n;) { 904 /* Now identify the consecutive vals belonging to the same row */ 905 for (j=i,rstart=row[j]; j<n; j++) { if (row[j] != rstart) break; } 906 if (j < n) ncols = j-i; 907 else ncols = n-i; 908 ierr = MatSetValuesBlocked_MPIBAIJ(mat,1,row+i,ncols,col+i,val+i*bs2,addv);CHKERRQ(ierr); 909 i = j; 910 } 911 } 912 ierr = MatStashScatterEnd_Private(&mat->bstash);CHKERRQ(ierr); 913 baij->roworiented = r1; 914 a->roworiented = r2; 915 ((Mat_SeqBAIJ*)baij->B->data)->roworiented = r3; /* b->roworiented */ 916 } 917 918 ierr = MatAssemblyBegin(baij->A,mode);CHKERRQ(ierr); 919 ierr = MatAssemblyEnd(baij->A,mode);CHKERRQ(ierr); 920 921 /* determine if any processor has disassembled, if so we must 922 also disassemble ourselfs, in order that we may reassemble. */ 923 /* 924 if nonzero structure of submatrix B cannot change then we know that 925 no processor disassembled thus we can skip this stuff 926 */ 927 if (!((Mat_SeqBAIJ*)baij->B->data)->nonew) { 928 ierr = MPI_Allreduce(&mat->was_assembled,&other_disassembled,1,MPI_INT,MPI_PROD,((PetscObject)mat)->comm);CHKERRQ(ierr); 929 if (mat->was_assembled && !other_disassembled) { 930 ierr = DisAssemble_MPIBAIJ(mat);CHKERRQ(ierr); 931 } 932 } 933 934 if (!mat->was_assembled && mode == MAT_FINAL_ASSEMBLY) { 935 ierr = MatSetUpMultiply_MPIBAIJ(mat);CHKERRQ(ierr); 936 } 937 ((Mat_SeqBAIJ*)baij->B->data)->compressedrow.use = PETSC_TRUE; /* b->compressedrow.use */ 938 ierr = MatAssemblyBegin(baij->B,mode);CHKERRQ(ierr); 939 ierr = MatAssemblyEnd(baij->B,mode);CHKERRQ(ierr); 940 941 #if defined(PETSC_USE_INFO) 942 if (baij->ht && mode== MAT_FINAL_ASSEMBLY) { 943 ierr = PetscInfo1(mat,"Average Hash Table Search in MatSetValues = %5.2f\n",((PetscReal)baij->ht_total_ct)/baij->ht_insert_ct);CHKERRQ(ierr); 944 baij->ht_total_ct = 0; 945 baij->ht_insert_ct = 0; 946 } 947 #endif 948 if (baij->ht_flag && !baij->ht && mode == MAT_FINAL_ASSEMBLY) { 949 ierr = MatCreateHashTable_MPIBAIJ_Private(mat,baij->ht_fact);CHKERRQ(ierr); 950 mat->ops->setvalues = MatSetValues_MPIBAIJ_HT; 951 mat->ops->setvaluesblocked = MatSetValuesBlocked_MPIBAIJ_HT; 952 } 953 954 ierr = PetscFree(baij->rowvalues);CHKERRQ(ierr); 955 baij->rowvalues = 0; 956 PetscFunctionReturn(0); 957 } 958 959 #undef __FUNCT__ 960 #define __FUNCT__ "MatView_MPIBAIJ_ASCIIorDraworSocket" 961 static PetscErrorCode MatView_MPIBAIJ_ASCIIorDraworSocket(Mat mat,PetscViewer viewer) 962 { 963 Mat_MPIBAIJ *baij = (Mat_MPIBAIJ*)mat->data; 964 PetscErrorCode ierr; 965 PetscMPIInt size = baij->size,rank = baij->rank; 966 PetscInt bs = mat->rmap->bs; 967 PetscTruth iascii,isdraw; 968 PetscViewer sviewer; 969 PetscViewerFormat format; 970 971 PetscFunctionBegin; 972 ierr = PetscTypeCompare((PetscObject)viewer,PETSC_VIEWER_ASCII,&iascii);CHKERRQ(ierr); 973 ierr = PetscTypeCompare((PetscObject)viewer,PETSC_VIEWER_DRAW,&isdraw);CHKERRQ(ierr); 974 if (iascii) { 975 ierr = PetscViewerGetFormat(viewer,&format);CHKERRQ(ierr); 976 if (format == PETSC_VIEWER_ASCII_INFO_DETAIL) { 977 MatInfo info; 978 ierr = MPI_Comm_rank(((PetscObject)mat)->comm,&rank);CHKERRQ(ierr); 979 ierr = MatGetInfo(mat,MAT_LOCAL,&info);CHKERRQ(ierr); 980 ierr = PetscViewerASCIISynchronizedPrintf(viewer,"[%d] Local rows %D nz %D nz alloced %D bs %D mem %D\n", 981 rank,mat->rmap->N,(PetscInt)info.nz_used*bs,(PetscInt)info.nz_allocated*bs, 982 mat->rmap->bs,(PetscInt)info.memory);CHKERRQ(ierr); 983 ierr = MatGetInfo(baij->A,MAT_LOCAL,&info);CHKERRQ(ierr); 984 ierr = PetscViewerASCIISynchronizedPrintf(viewer,"[%d] on-diagonal part: nz %D \n",rank,(PetscInt)info.nz_used*bs);CHKERRQ(ierr); 985 ierr = MatGetInfo(baij->B,MAT_LOCAL,&info);CHKERRQ(ierr); 986 ierr = PetscViewerASCIISynchronizedPrintf(viewer,"[%d] off-diagonal part: nz %D \n",rank,(PetscInt)info.nz_used*bs);CHKERRQ(ierr); 987 ierr = PetscViewerFlush(viewer);CHKERRQ(ierr); 988 ierr = PetscViewerASCIIPrintf(viewer,"Information on VecScatter used in matrix-vector product: \n");CHKERRQ(ierr); 989 ierr = VecScatterView(baij->Mvctx,viewer);CHKERRQ(ierr); 990 PetscFunctionReturn(0); 991 } else if (format == PETSC_VIEWER_ASCII_INFO) { 992 ierr = PetscViewerASCIIPrintf(viewer," block size is %D\n",bs);CHKERRQ(ierr); 993 PetscFunctionReturn(0); 994 } else if (format == PETSC_VIEWER_ASCII_FACTOR_INFO) { 995 PetscFunctionReturn(0); 996 } 997 } 998 999 if (isdraw) { 1000 PetscDraw draw; 1001 PetscTruth isnull; 1002 ierr = PetscViewerDrawGetDraw(viewer,0,&draw);CHKERRQ(ierr); 1003 ierr = PetscDrawIsNull(draw,&isnull);CHKERRQ(ierr); if (isnull) PetscFunctionReturn(0); 1004 } 1005 1006 if (size == 1) { 1007 ierr = PetscObjectSetName((PetscObject)baij->A,((PetscObject)mat)->name);CHKERRQ(ierr); 1008 ierr = MatView(baij->A,viewer);CHKERRQ(ierr); 1009 } else { 1010 /* assemble the entire matrix onto first processor. */ 1011 Mat A; 1012 Mat_SeqBAIJ *Aloc; 1013 PetscInt M = mat->rmap->N,N = mat->cmap->N,*ai,*aj,col,i,j,k,*rvals,mbs = baij->mbs; 1014 MatScalar *a; 1015 1016 /* Here we are creating a temporary matrix, so will assume MPIBAIJ is acceptable */ 1017 /* Perhaps this should be the type of mat? */ 1018 ierr = MatCreate(((PetscObject)mat)->comm,&A);CHKERRQ(ierr); 1019 if (!rank) { 1020 ierr = MatSetSizes(A,M,N,M,N);CHKERRQ(ierr); 1021 } else { 1022 ierr = MatSetSizes(A,0,0,M,N);CHKERRQ(ierr); 1023 } 1024 ierr = MatSetType(A,MATMPIBAIJ);CHKERRQ(ierr); 1025 ierr = MatMPIBAIJSetPreallocation(A,mat->rmap->bs,0,PETSC_NULL,0,PETSC_NULL);CHKERRQ(ierr); 1026 ierr = PetscLogObjectParent(mat,A);CHKERRQ(ierr); 1027 1028 /* copy over the A part */ 1029 Aloc = (Mat_SeqBAIJ*)baij->A->data; 1030 ai = Aloc->i; aj = Aloc->j; a = Aloc->a; 1031 ierr = PetscMalloc(bs*sizeof(PetscInt),&rvals);CHKERRQ(ierr); 1032 1033 for (i=0; i<mbs; i++) { 1034 rvals[0] = bs*(baij->rstartbs + i); 1035 for (j=1; j<bs; j++) { rvals[j] = rvals[j-1] + 1; } 1036 for (j=ai[i]; j<ai[i+1]; j++) { 1037 col = (baij->cstartbs+aj[j])*bs; 1038 for (k=0; k<bs; k++) { 1039 ierr = MatSetValues_MPIBAIJ(A,bs,rvals,1,&col,a,INSERT_VALUES);CHKERRQ(ierr); 1040 col++; a += bs; 1041 } 1042 } 1043 } 1044 /* copy over the B part */ 1045 Aloc = (Mat_SeqBAIJ*)baij->B->data; 1046 ai = Aloc->i; aj = Aloc->j; a = Aloc->a; 1047 for (i=0; i<mbs; i++) { 1048 rvals[0] = bs*(baij->rstartbs + i); 1049 for (j=1; j<bs; j++) { rvals[j] = rvals[j-1] + 1; } 1050 for (j=ai[i]; j<ai[i+1]; j++) { 1051 col = baij->garray[aj[j]]*bs; 1052 for (k=0; k<bs; k++) { 1053 ierr = MatSetValues_MPIBAIJ(A,bs,rvals,1,&col,a,INSERT_VALUES);CHKERRQ(ierr); 1054 col++; a += bs; 1055 } 1056 } 1057 } 1058 ierr = PetscFree(rvals);CHKERRQ(ierr); 1059 ierr = MatAssemblyBegin(A,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 1060 ierr = MatAssemblyEnd(A,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 1061 /* 1062 Everyone has to call to draw the matrix since the graphics waits are 1063 synchronized across all processors that share the PetscDraw object 1064 */ 1065 ierr = PetscViewerGetSingleton(viewer,&sviewer);CHKERRQ(ierr); 1066 if (!rank) { 1067 ierr = PetscObjectSetName((PetscObject)((Mat_MPIBAIJ*)(A->data))->A,((PetscObject)mat)->name);CHKERRQ(ierr); 1068 ierr = MatView(((Mat_MPIBAIJ*)(A->data))->A,sviewer);CHKERRQ(ierr); 1069 } 1070 ierr = PetscViewerRestoreSingleton(viewer,&sviewer);CHKERRQ(ierr); 1071 ierr = MatDestroy(A);CHKERRQ(ierr); 1072 } 1073 PetscFunctionReturn(0); 1074 } 1075 1076 #undef __FUNCT__ 1077 #define __FUNCT__ "MatView_MPIBAIJ" 1078 PetscErrorCode MatView_MPIBAIJ(Mat mat,PetscViewer viewer) 1079 { 1080 PetscErrorCode ierr; 1081 PetscTruth iascii,isdraw,issocket,isbinary; 1082 1083 PetscFunctionBegin; 1084 ierr = PetscTypeCompare((PetscObject)viewer,PETSC_VIEWER_ASCII,&iascii);CHKERRQ(ierr); 1085 ierr = PetscTypeCompare((PetscObject)viewer,PETSC_VIEWER_DRAW,&isdraw);CHKERRQ(ierr); 1086 ierr = PetscTypeCompare((PetscObject)viewer,PETSC_VIEWER_SOCKET,&issocket);CHKERRQ(ierr); 1087 ierr = PetscTypeCompare((PetscObject)viewer,PETSC_VIEWER_BINARY,&isbinary);CHKERRQ(ierr); 1088 if (iascii || isdraw || issocket || isbinary) { 1089 ierr = MatView_MPIBAIJ_ASCIIorDraworSocket(mat,viewer);CHKERRQ(ierr); 1090 } else { 1091 SETERRQ1(PETSC_ERR_SUP,"Viewer type %s not supported by MPIBAIJ matrices",((PetscObject)viewer)->type_name); 1092 } 1093 PetscFunctionReturn(0); 1094 } 1095 1096 #undef __FUNCT__ 1097 #define __FUNCT__ "MatDestroy_MPIBAIJ" 1098 PetscErrorCode MatDestroy_MPIBAIJ(Mat mat) 1099 { 1100 Mat_MPIBAIJ *baij = (Mat_MPIBAIJ*)mat->data; 1101 PetscErrorCode ierr; 1102 1103 PetscFunctionBegin; 1104 #if defined(PETSC_USE_LOG) 1105 PetscLogObjectState((PetscObject)mat,"Rows=%D,Cols=%D",mat->rmap->N,mat->cmap->N); 1106 #endif 1107 ierr = MatStashDestroy_Private(&mat->stash);CHKERRQ(ierr); 1108 ierr = MatStashDestroy_Private(&mat->bstash);CHKERRQ(ierr); 1109 ierr = MatDestroy(baij->A);CHKERRQ(ierr); 1110 ierr = MatDestroy(baij->B);CHKERRQ(ierr); 1111 #if defined (PETSC_USE_CTABLE) 1112 if (baij->colmap) {ierr = PetscTableDestroy(baij->colmap);CHKERRQ(ierr);} 1113 #else 1114 ierr = PetscFree(baij->colmap);CHKERRQ(ierr); 1115 #endif 1116 ierr = PetscFree(baij->garray);CHKERRQ(ierr); 1117 if (baij->lvec) {ierr = VecDestroy(baij->lvec);CHKERRQ(ierr);} 1118 if (baij->Mvctx) {ierr = VecScatterDestroy(baij->Mvctx);CHKERRQ(ierr);} 1119 ierr = PetscFree(baij->rowvalues);CHKERRQ(ierr); 1120 ierr = PetscFree(baij->barray);CHKERRQ(ierr); 1121 ierr = PetscFree(baij->hd);CHKERRQ(ierr); 1122 ierr = PetscFree(baij->rangebs);CHKERRQ(ierr); 1123 ierr = PetscFree(baij);CHKERRQ(ierr); 1124 1125 ierr = PetscObjectChangeTypeName((PetscObject)mat,0);CHKERRQ(ierr); 1126 ierr = PetscObjectComposeFunction((PetscObject)mat,"MatStoreValues_C","",PETSC_NULL);CHKERRQ(ierr); 1127 ierr = PetscObjectComposeFunction((PetscObject)mat,"MatRetrieveValues_C","",PETSC_NULL);CHKERRQ(ierr); 1128 ierr = PetscObjectComposeFunction((PetscObject)mat,"MatGetDiagonalBlock_C","",PETSC_NULL);CHKERRQ(ierr); 1129 ierr = PetscObjectComposeFunction((PetscObject)mat,"MatMPIBAIJSetPreallocation_C","",PETSC_NULL);CHKERRQ(ierr); 1130 ierr = PetscObjectComposeFunction((PetscObject)mat,"MatMPIBAIJSetPreallocationCSR_C","",PETSC_NULL);CHKERRQ(ierr); 1131 ierr = PetscObjectComposeFunction((PetscObject)mat,"MatDiagonalScaleLocal_C","",PETSC_NULL);CHKERRQ(ierr); 1132 ierr = PetscObjectComposeFunction((PetscObject)mat,"MatSetHashTableFactor_C","",PETSC_NULL);CHKERRQ(ierr); 1133 PetscFunctionReturn(0); 1134 } 1135 1136 #undef __FUNCT__ 1137 #define __FUNCT__ "MatMult_MPIBAIJ" 1138 PetscErrorCode MatMult_MPIBAIJ(Mat A,Vec xx,Vec yy) 1139 { 1140 Mat_MPIBAIJ *a = (Mat_MPIBAIJ*)A->data; 1141 PetscErrorCode ierr; 1142 PetscInt nt; 1143 1144 PetscFunctionBegin; 1145 ierr = VecGetLocalSize(xx,&nt);CHKERRQ(ierr); 1146 if (nt != A->cmap->n) { 1147 SETERRQ(PETSC_ERR_ARG_SIZ,"Incompatible partition of A and xx"); 1148 } 1149 ierr = VecGetLocalSize(yy,&nt);CHKERRQ(ierr); 1150 if (nt != A->rmap->n) { 1151 SETERRQ(PETSC_ERR_ARG_SIZ,"Incompatible parition of A and yy"); 1152 } 1153 ierr = VecScatterBegin(a->Mvctx,xx,a->lvec,INSERT_VALUES,SCATTER_FORWARD);CHKERRQ(ierr); 1154 ierr = (*a->A->ops->mult)(a->A,xx,yy);CHKERRQ(ierr); 1155 ierr = VecScatterEnd(a->Mvctx,xx,a->lvec,INSERT_VALUES,SCATTER_FORWARD);CHKERRQ(ierr); 1156 ierr = (*a->B->ops->multadd)(a->B,a->lvec,yy,yy);CHKERRQ(ierr); 1157 PetscFunctionReturn(0); 1158 } 1159 1160 #undef __FUNCT__ 1161 #define __FUNCT__ "MatMultAdd_MPIBAIJ" 1162 PetscErrorCode MatMultAdd_MPIBAIJ(Mat A,Vec xx,Vec yy,Vec zz) 1163 { 1164 Mat_MPIBAIJ *a = (Mat_MPIBAIJ*)A->data; 1165 PetscErrorCode ierr; 1166 1167 PetscFunctionBegin; 1168 ierr = VecScatterBegin(a->Mvctx,xx,a->lvec,INSERT_VALUES,SCATTER_FORWARD);CHKERRQ(ierr); 1169 ierr = (*a->A->ops->multadd)(a->A,xx,yy,zz);CHKERRQ(ierr); 1170 ierr = VecScatterEnd(a->Mvctx,xx,a->lvec,INSERT_VALUES,SCATTER_FORWARD);CHKERRQ(ierr); 1171 ierr = (*a->B->ops->multadd)(a->B,a->lvec,zz,zz);CHKERRQ(ierr); 1172 PetscFunctionReturn(0); 1173 } 1174 1175 #undef __FUNCT__ 1176 #define __FUNCT__ "MatMultTranspose_MPIBAIJ" 1177 PetscErrorCode MatMultTranspose_MPIBAIJ(Mat A,Vec xx,Vec yy) 1178 { 1179 Mat_MPIBAIJ *a = (Mat_MPIBAIJ*)A->data; 1180 PetscErrorCode ierr; 1181 PetscTruth merged; 1182 1183 PetscFunctionBegin; 1184 ierr = VecScatterGetMerged(a->Mvctx,&merged);CHKERRQ(ierr); 1185 /* do nondiagonal part */ 1186 ierr = (*a->B->ops->multtranspose)(a->B,xx,a->lvec);CHKERRQ(ierr); 1187 if (!merged) { 1188 /* send it on its way */ 1189 ierr = VecScatterBegin(a->Mvctx,a->lvec,yy,ADD_VALUES,SCATTER_REVERSE);CHKERRQ(ierr); 1190 /* do local part */ 1191 ierr = (*a->A->ops->multtranspose)(a->A,xx,yy);CHKERRQ(ierr); 1192 /* receive remote parts: note this assumes the values are not actually */ 1193 /* inserted in yy until the next line */ 1194 ierr = VecScatterEnd(a->Mvctx,a->lvec,yy,ADD_VALUES,SCATTER_REVERSE);CHKERRQ(ierr); 1195 } else { 1196 /* do local part */ 1197 ierr = (*a->A->ops->multtranspose)(a->A,xx,yy);CHKERRQ(ierr); 1198 /* send it on its way */ 1199 ierr = VecScatterBegin(a->Mvctx,a->lvec,yy,ADD_VALUES,SCATTER_REVERSE);CHKERRQ(ierr); 1200 /* values actually were received in the Begin() but we need to call this nop */ 1201 ierr = VecScatterEnd(a->Mvctx,a->lvec,yy,ADD_VALUES,SCATTER_REVERSE);CHKERRQ(ierr); 1202 } 1203 PetscFunctionReturn(0); 1204 } 1205 1206 #undef __FUNCT__ 1207 #define __FUNCT__ "MatMultTransposeAdd_MPIBAIJ" 1208 PetscErrorCode MatMultTransposeAdd_MPIBAIJ(Mat A,Vec xx,Vec yy,Vec zz) 1209 { 1210 Mat_MPIBAIJ *a = (Mat_MPIBAIJ*)A->data; 1211 PetscErrorCode ierr; 1212 1213 PetscFunctionBegin; 1214 /* do nondiagonal part */ 1215 ierr = (*a->B->ops->multtranspose)(a->B,xx,a->lvec);CHKERRQ(ierr); 1216 /* send it on its way */ 1217 ierr = VecScatterBegin(a->Mvctx,a->lvec,zz,ADD_VALUES,SCATTER_REVERSE);CHKERRQ(ierr); 1218 /* do local part */ 1219 ierr = (*a->A->ops->multtransposeadd)(a->A,xx,yy,zz);CHKERRQ(ierr); 1220 /* receive remote parts: note this assumes the values are not actually */ 1221 /* inserted in yy until the next line, which is true for my implementation*/ 1222 /* but is not perhaps always true. */ 1223 ierr = VecScatterEnd(a->Mvctx,a->lvec,zz,ADD_VALUES,SCATTER_REVERSE);CHKERRQ(ierr); 1224 PetscFunctionReturn(0); 1225 } 1226 1227 /* 1228 This only works correctly for square matrices where the subblock A->A is the 1229 diagonal block 1230 */ 1231 #undef __FUNCT__ 1232 #define __FUNCT__ "MatGetDiagonal_MPIBAIJ" 1233 PetscErrorCode MatGetDiagonal_MPIBAIJ(Mat A,Vec v) 1234 { 1235 Mat_MPIBAIJ *a = (Mat_MPIBAIJ*)A->data; 1236 PetscErrorCode ierr; 1237 1238 PetscFunctionBegin; 1239 if (A->rmap->N != A->cmap->N) SETERRQ(PETSC_ERR_SUP,"Supports only square matrix where A->A is diag block"); 1240 ierr = MatGetDiagonal(a->A,v);CHKERRQ(ierr); 1241 PetscFunctionReturn(0); 1242 } 1243 1244 #undef __FUNCT__ 1245 #define __FUNCT__ "MatScale_MPIBAIJ" 1246 PetscErrorCode MatScale_MPIBAIJ(Mat A,PetscScalar aa) 1247 { 1248 Mat_MPIBAIJ *a = (Mat_MPIBAIJ*)A->data; 1249 PetscErrorCode ierr; 1250 1251 PetscFunctionBegin; 1252 ierr = MatScale(a->A,aa);CHKERRQ(ierr); 1253 ierr = MatScale(a->B,aa);CHKERRQ(ierr); 1254 PetscFunctionReturn(0); 1255 } 1256 1257 #undef __FUNCT__ 1258 #define __FUNCT__ "MatGetRow_MPIBAIJ" 1259 PetscErrorCode MatGetRow_MPIBAIJ(Mat matin,PetscInt row,PetscInt *nz,PetscInt **idx,PetscScalar **v) 1260 { 1261 Mat_MPIBAIJ *mat = (Mat_MPIBAIJ*)matin->data; 1262 PetscScalar *vworkA,*vworkB,**pvA,**pvB,*v_p; 1263 PetscErrorCode ierr; 1264 PetscInt bs = matin->rmap->bs,bs2 = mat->bs2,i,*cworkA,*cworkB,**pcA,**pcB; 1265 PetscInt nztot,nzA,nzB,lrow,brstart = matin->rmap->rstart,brend = matin->rmap->rend; 1266 PetscInt *cmap,*idx_p,cstart = mat->cstartbs; 1267 1268 PetscFunctionBegin; 1269 if (mat->getrowactive) SETERRQ(PETSC_ERR_ARG_WRONGSTATE,"Already active"); 1270 mat->getrowactive = PETSC_TRUE; 1271 1272 if (!mat->rowvalues && (idx || v)) { 1273 /* 1274 allocate enough space to hold information from the longest row. 1275 */ 1276 Mat_SeqBAIJ *Aa = (Mat_SeqBAIJ*)mat->A->data,*Ba = (Mat_SeqBAIJ*)mat->B->data; 1277 PetscInt max = 1,mbs = mat->mbs,tmp; 1278 for (i=0; i<mbs; i++) { 1279 tmp = Aa->i[i+1] - Aa->i[i] + Ba->i[i+1] - Ba->i[i]; 1280 if (max < tmp) { max = tmp; } 1281 } 1282 ierr = PetscMalloc(max*bs2*(sizeof(PetscInt)+sizeof(PetscScalar)),&mat->rowvalues);CHKERRQ(ierr); 1283 mat->rowindices = (PetscInt*)(mat->rowvalues + max*bs2); 1284 } 1285 1286 if (row < brstart || row >= brend) SETERRQ(PETSC_ERR_SUP,"Only local rows") 1287 lrow = row - brstart; 1288 1289 pvA = &vworkA; pcA = &cworkA; pvB = &vworkB; pcB = &cworkB; 1290 if (!v) {pvA = 0; pvB = 0;} 1291 if (!idx) {pcA = 0; if (!v) pcB = 0;} 1292 ierr = (*mat->A->ops->getrow)(mat->A,lrow,&nzA,pcA,pvA);CHKERRQ(ierr); 1293 ierr = (*mat->B->ops->getrow)(mat->B,lrow,&nzB,pcB,pvB);CHKERRQ(ierr); 1294 nztot = nzA + nzB; 1295 1296 cmap = mat->garray; 1297 if (v || idx) { 1298 if (nztot) { 1299 /* Sort by increasing column numbers, assuming A and B already sorted */ 1300 PetscInt imark = -1; 1301 if (v) { 1302 *v = v_p = mat->rowvalues; 1303 for (i=0; i<nzB; i++) { 1304 if (cmap[cworkB[i]/bs] < cstart) v_p[i] = vworkB[i]; 1305 else break; 1306 } 1307 imark = i; 1308 for (i=0; i<nzA; i++) v_p[imark+i] = vworkA[i]; 1309 for (i=imark; i<nzB; i++) v_p[nzA+i] = vworkB[i]; 1310 } 1311 if (idx) { 1312 *idx = idx_p = mat->rowindices; 1313 if (imark > -1) { 1314 for (i=0; i<imark; i++) { 1315 idx_p[i] = cmap[cworkB[i]/bs]*bs + cworkB[i]%bs; 1316 } 1317 } else { 1318 for (i=0; i<nzB; i++) { 1319 if (cmap[cworkB[i]/bs] < cstart) 1320 idx_p[i] = cmap[cworkB[i]/bs]*bs + cworkB[i]%bs ; 1321 else break; 1322 } 1323 imark = i; 1324 } 1325 for (i=0; i<nzA; i++) idx_p[imark+i] = cstart*bs + cworkA[i]; 1326 for (i=imark; i<nzB; i++) idx_p[nzA+i] = cmap[cworkB[i]/bs]*bs + cworkB[i]%bs ; 1327 } 1328 } else { 1329 if (idx) *idx = 0; 1330 if (v) *v = 0; 1331 } 1332 } 1333 *nz = nztot; 1334 ierr = (*mat->A->ops->restorerow)(mat->A,lrow,&nzA,pcA,pvA);CHKERRQ(ierr); 1335 ierr = (*mat->B->ops->restorerow)(mat->B,lrow,&nzB,pcB,pvB);CHKERRQ(ierr); 1336 PetscFunctionReturn(0); 1337 } 1338 1339 #undef __FUNCT__ 1340 #define __FUNCT__ "MatRestoreRow_MPIBAIJ" 1341 PetscErrorCode MatRestoreRow_MPIBAIJ(Mat mat,PetscInt row,PetscInt *nz,PetscInt **idx,PetscScalar **v) 1342 { 1343 Mat_MPIBAIJ *baij = (Mat_MPIBAIJ*)mat->data; 1344 1345 PetscFunctionBegin; 1346 if (!baij->getrowactive) { 1347 SETERRQ(PETSC_ERR_ARG_WRONGSTATE,"MatGetRow not called"); 1348 } 1349 baij->getrowactive = PETSC_FALSE; 1350 PetscFunctionReturn(0); 1351 } 1352 1353 #undef __FUNCT__ 1354 #define __FUNCT__ "MatZeroEntries_MPIBAIJ" 1355 PetscErrorCode MatZeroEntries_MPIBAIJ(Mat A) 1356 { 1357 Mat_MPIBAIJ *l = (Mat_MPIBAIJ*)A->data; 1358 PetscErrorCode ierr; 1359 1360 PetscFunctionBegin; 1361 ierr = MatZeroEntries(l->A);CHKERRQ(ierr); 1362 ierr = MatZeroEntries(l->B);CHKERRQ(ierr); 1363 PetscFunctionReturn(0); 1364 } 1365 1366 #undef __FUNCT__ 1367 #define __FUNCT__ "MatGetInfo_MPIBAIJ" 1368 PetscErrorCode MatGetInfo_MPIBAIJ(Mat matin,MatInfoType flag,MatInfo *info) 1369 { 1370 Mat_MPIBAIJ *a = (Mat_MPIBAIJ*)matin->data; 1371 Mat A = a->A,B = a->B; 1372 PetscErrorCode ierr; 1373 PetscReal isend[5],irecv[5]; 1374 1375 PetscFunctionBegin; 1376 info->block_size = (PetscReal)matin->rmap->bs; 1377 ierr = MatGetInfo(A,MAT_LOCAL,info);CHKERRQ(ierr); 1378 isend[0] = info->nz_used; isend[1] = info->nz_allocated; isend[2] = info->nz_unneeded; 1379 isend[3] = info->memory; isend[4] = info->mallocs; 1380 ierr = MatGetInfo(B,MAT_LOCAL,info);CHKERRQ(ierr); 1381 isend[0] += info->nz_used; isend[1] += info->nz_allocated; isend[2] += info->nz_unneeded; 1382 isend[3] += info->memory; isend[4] += info->mallocs; 1383 if (flag == MAT_LOCAL) { 1384 info->nz_used = isend[0]; 1385 info->nz_allocated = isend[1]; 1386 info->nz_unneeded = isend[2]; 1387 info->memory = isend[3]; 1388 info->mallocs = isend[4]; 1389 } else if (flag == MAT_GLOBAL_MAX) { 1390 ierr = MPI_Allreduce(isend,irecv,5,MPIU_REAL,MPI_MAX,((PetscObject)matin)->comm);CHKERRQ(ierr); 1391 info->nz_used = irecv[0]; 1392 info->nz_allocated = irecv[1]; 1393 info->nz_unneeded = irecv[2]; 1394 info->memory = irecv[3]; 1395 info->mallocs = irecv[4]; 1396 } else if (flag == MAT_GLOBAL_SUM) { 1397 ierr = MPI_Allreduce(isend,irecv,5,MPIU_REAL,MPI_SUM,((PetscObject)matin)->comm);CHKERRQ(ierr); 1398 info->nz_used = irecv[0]; 1399 info->nz_allocated = irecv[1]; 1400 info->nz_unneeded = irecv[2]; 1401 info->memory = irecv[3]; 1402 info->mallocs = irecv[4]; 1403 } else { 1404 SETERRQ1(PETSC_ERR_ARG_WRONG,"Unknown MatInfoType argument %d",(int)flag); 1405 } 1406 info->fill_ratio_given = 0; /* no parallel LU/ILU/Cholesky */ 1407 info->fill_ratio_needed = 0; 1408 info->factor_mallocs = 0; 1409 PetscFunctionReturn(0); 1410 } 1411 1412 #undef __FUNCT__ 1413 #define __FUNCT__ "MatSetOption_MPIBAIJ" 1414 PetscErrorCode MatSetOption_MPIBAIJ(Mat A,MatOption op,PetscTruth flg) 1415 { 1416 Mat_MPIBAIJ *a = (Mat_MPIBAIJ*)A->data; 1417 PetscErrorCode ierr; 1418 1419 PetscFunctionBegin; 1420 switch (op) { 1421 case MAT_NEW_NONZERO_LOCATIONS: 1422 case MAT_NEW_NONZERO_ALLOCATION_ERR: 1423 case MAT_UNUSED_NONZERO_LOCATION_ERR: 1424 case MAT_KEEP_ZEROED_ROWS: 1425 case MAT_NEW_NONZERO_LOCATION_ERR: 1426 ierr = MatSetOption(a->A,op,flg);CHKERRQ(ierr); 1427 ierr = MatSetOption(a->B,op,flg);CHKERRQ(ierr); 1428 break; 1429 case MAT_ROW_ORIENTED: 1430 a->roworiented = flg; 1431 ierr = MatSetOption(a->A,op,flg);CHKERRQ(ierr); 1432 ierr = MatSetOption(a->B,op,flg);CHKERRQ(ierr); 1433 break; 1434 case MAT_NEW_DIAGONALS: 1435 ierr = PetscInfo1(A,"Option %s ignored\n",MatOptions[op]);CHKERRQ(ierr); 1436 break; 1437 case MAT_IGNORE_OFF_PROC_ENTRIES: 1438 a->donotstash = flg; 1439 break; 1440 case MAT_USE_HASH_TABLE: 1441 a->ht_flag = flg; 1442 break; 1443 case MAT_SYMMETRIC: 1444 case MAT_STRUCTURALLY_SYMMETRIC: 1445 case MAT_HERMITIAN: 1446 case MAT_SYMMETRY_ETERNAL: 1447 ierr = MatSetOption(a->A,op,flg);CHKERRQ(ierr); 1448 break; 1449 default: 1450 SETERRQ1(PETSC_ERR_SUP,"unknown option %d",op); 1451 } 1452 PetscFunctionReturn(0); 1453 } 1454 1455 #undef __FUNCT__ 1456 #define __FUNCT__ "MatTranspose_MPIBAIJ(" 1457 PetscErrorCode MatTranspose_MPIBAIJ(Mat A,MatReuse reuse,Mat *matout) 1458 { 1459 Mat_MPIBAIJ *baij = (Mat_MPIBAIJ*)A->data; 1460 Mat_SeqBAIJ *Aloc; 1461 Mat B; 1462 PetscErrorCode ierr; 1463 PetscInt M=A->rmap->N,N=A->cmap->N,*ai,*aj,i,*rvals,j,k,col; 1464 PetscInt bs=A->rmap->bs,mbs=baij->mbs; 1465 MatScalar *a; 1466 1467 PetscFunctionBegin; 1468 if (reuse == MAT_REUSE_MATRIX && A == *matout && M != N) SETERRQ(PETSC_ERR_ARG_SIZ,"Square matrix only for in-place"); 1469 if (reuse == MAT_INITIAL_MATRIX || *matout == A) { 1470 ierr = MatCreate(((PetscObject)A)->comm,&B);CHKERRQ(ierr); 1471 ierr = MatSetSizes(B,A->cmap->n,A->rmap->n,N,M);CHKERRQ(ierr); 1472 ierr = MatSetType(B,((PetscObject)A)->type_name);CHKERRQ(ierr); 1473 ierr = MatMPIBAIJSetPreallocation(B,A->rmap->bs,0,PETSC_NULL,0,PETSC_NULL);CHKERRQ(ierr); 1474 } else { 1475 B = *matout; 1476 } 1477 1478 /* copy over the A part */ 1479 Aloc = (Mat_SeqBAIJ*)baij->A->data; 1480 ai = Aloc->i; aj = Aloc->j; a = Aloc->a; 1481 ierr = PetscMalloc(bs*sizeof(PetscInt),&rvals);CHKERRQ(ierr); 1482 1483 for (i=0; i<mbs; i++) { 1484 rvals[0] = bs*(baij->rstartbs + i); 1485 for (j=1; j<bs; j++) { rvals[j] = rvals[j-1] + 1; } 1486 for (j=ai[i]; j<ai[i+1]; j++) { 1487 col = (baij->cstartbs+aj[j])*bs; 1488 for (k=0; k<bs; k++) { 1489 ierr = MatSetValues_MPIBAIJ(B,1,&col,bs,rvals,a,INSERT_VALUES);CHKERRQ(ierr); 1490 col++; a += bs; 1491 } 1492 } 1493 } 1494 /* copy over the B part */ 1495 Aloc = (Mat_SeqBAIJ*)baij->B->data; 1496 ai = Aloc->i; aj = Aloc->j; a = Aloc->a; 1497 for (i=0; i<mbs; i++) { 1498 rvals[0] = bs*(baij->rstartbs + i); 1499 for (j=1; j<bs; j++) { rvals[j] = rvals[j-1] + 1; } 1500 for (j=ai[i]; j<ai[i+1]; j++) { 1501 col = baij->garray[aj[j]]*bs; 1502 for (k=0; k<bs; k++) { 1503 ierr = MatSetValues_MPIBAIJ(B,1,&col,bs,rvals,a,INSERT_VALUES);CHKERRQ(ierr); 1504 col++; a += bs; 1505 } 1506 } 1507 } 1508 ierr = PetscFree(rvals);CHKERRQ(ierr); 1509 ierr = MatAssemblyBegin(B,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 1510 ierr = MatAssemblyEnd(B,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 1511 1512 if (reuse == MAT_INITIAL_MATRIX || *matout != A) { 1513 *matout = B; 1514 } else { 1515 ierr = MatHeaderCopy(A,B);CHKERRQ(ierr); 1516 } 1517 PetscFunctionReturn(0); 1518 } 1519 1520 #undef __FUNCT__ 1521 #define __FUNCT__ "MatDiagonalScale_MPIBAIJ" 1522 PetscErrorCode MatDiagonalScale_MPIBAIJ(Mat mat,Vec ll,Vec rr) 1523 { 1524 Mat_MPIBAIJ *baij = (Mat_MPIBAIJ*)mat->data; 1525 Mat a = baij->A,b = baij->B; 1526 PetscErrorCode ierr; 1527 PetscInt s1,s2,s3; 1528 1529 PetscFunctionBegin; 1530 ierr = MatGetLocalSize(mat,&s2,&s3);CHKERRQ(ierr); 1531 if (rr) { 1532 ierr = VecGetLocalSize(rr,&s1);CHKERRQ(ierr); 1533 if (s1!=s3) SETERRQ(PETSC_ERR_ARG_SIZ,"right vector non-conforming local size"); 1534 /* Overlap communication with computation. */ 1535 ierr = VecScatterBegin(baij->Mvctx,rr,baij->lvec,INSERT_VALUES,SCATTER_FORWARD);CHKERRQ(ierr); 1536 } 1537 if (ll) { 1538 ierr = VecGetLocalSize(ll,&s1);CHKERRQ(ierr); 1539 if (s1!=s2) SETERRQ(PETSC_ERR_ARG_SIZ,"left vector non-conforming local size"); 1540 ierr = (*b->ops->diagonalscale)(b,ll,PETSC_NULL);CHKERRQ(ierr); 1541 } 1542 /* scale the diagonal block */ 1543 ierr = (*a->ops->diagonalscale)(a,ll,rr);CHKERRQ(ierr); 1544 1545 if (rr) { 1546 /* Do a scatter end and then right scale the off-diagonal block */ 1547 ierr = VecScatterEnd(baij->Mvctx,rr,baij->lvec,INSERT_VALUES,SCATTER_FORWARD);CHKERRQ(ierr); 1548 ierr = (*b->ops->diagonalscale)(b,PETSC_NULL,baij->lvec);CHKERRQ(ierr); 1549 } 1550 1551 PetscFunctionReturn(0); 1552 } 1553 1554 #undef __FUNCT__ 1555 #define __FUNCT__ "MatZeroRows_MPIBAIJ" 1556 PetscErrorCode MatZeroRows_MPIBAIJ(Mat A,PetscInt N,const PetscInt rows[],PetscScalar diag) 1557 { 1558 Mat_MPIBAIJ *l = (Mat_MPIBAIJ*)A->data; 1559 PetscErrorCode ierr; 1560 PetscMPIInt imdex,size = l->size,n,rank = l->rank; 1561 PetscInt i,*owners = A->rmap->range; 1562 PetscInt *nprocs,j,idx,nsends,row; 1563 PetscInt nmax,*svalues,*starts,*owner,nrecvs; 1564 PetscInt *rvalues,tag = ((PetscObject)A)->tag,count,base,slen,*source,lastidx = -1; 1565 PetscInt *lens,*lrows,*values,rstart_bs=A->rmap->rstart; 1566 MPI_Comm comm = ((PetscObject)A)->comm; 1567 MPI_Request *send_waits,*recv_waits; 1568 MPI_Status recv_status,*send_status; 1569 #if defined(PETSC_DEBUG) 1570 PetscTruth found = PETSC_FALSE; 1571 #endif 1572 1573 PetscFunctionBegin; 1574 /* first count number of contributors to each processor */ 1575 ierr = PetscMalloc(2*size*sizeof(PetscInt),&nprocs);CHKERRQ(ierr); 1576 ierr = PetscMemzero(nprocs,2*size*sizeof(PetscInt));CHKERRQ(ierr); 1577 ierr = PetscMalloc((N+1)*sizeof(PetscInt),&owner);CHKERRQ(ierr); /* see note*/ 1578 j = 0; 1579 for (i=0; i<N; i++) { 1580 if (lastidx > (idx = rows[i])) j = 0; 1581 lastidx = idx; 1582 for (; j<size; j++) { 1583 if (idx >= owners[j] && idx < owners[j+1]) { 1584 nprocs[2*j]++; 1585 nprocs[2*j+1] = 1; 1586 owner[i] = j; 1587 #if defined(PETSC_DEBUG) 1588 found = PETSC_TRUE; 1589 #endif 1590 break; 1591 } 1592 } 1593 #if defined(PETSC_DEBUG) 1594 if (!found) SETERRQ(PETSC_ERR_ARG_OUTOFRANGE,"Index out of range"); 1595 found = PETSC_FALSE; 1596 #endif 1597 } 1598 nsends = 0; for (i=0; i<size; i++) { nsends += nprocs[2*i+1];} 1599 1600 /* inform other processors of number of messages and max length*/ 1601 ierr = PetscMaxSum(comm,nprocs,&nmax,&nrecvs);CHKERRQ(ierr); 1602 1603 /* post receives: */ 1604 ierr = PetscMalloc((nrecvs+1)*(nmax+1)*sizeof(PetscInt),&rvalues);CHKERRQ(ierr); 1605 ierr = PetscMalloc((nrecvs+1)*sizeof(MPI_Request),&recv_waits);CHKERRQ(ierr); 1606 for (i=0; i<nrecvs; i++) { 1607 ierr = MPI_Irecv(rvalues+nmax*i,nmax,MPIU_INT,MPI_ANY_SOURCE,tag,comm,recv_waits+i);CHKERRQ(ierr); 1608 } 1609 1610 /* do sends: 1611 1) starts[i] gives the starting index in svalues for stuff going to 1612 the ith processor 1613 */ 1614 ierr = PetscMalloc((N+1)*sizeof(PetscInt),&svalues);CHKERRQ(ierr); 1615 ierr = PetscMalloc((nsends+1)*sizeof(MPI_Request),&send_waits);CHKERRQ(ierr); 1616 ierr = PetscMalloc((size+1)*sizeof(PetscInt),&starts);CHKERRQ(ierr); 1617 starts[0] = 0; 1618 for (i=1; i<size; i++) { starts[i] = starts[i-1] + nprocs[2*i-2];} 1619 for (i=0; i<N; i++) { 1620 svalues[starts[owner[i]]++] = rows[i]; 1621 } 1622 1623 starts[0] = 0; 1624 for (i=1; i<size+1; i++) { starts[i] = starts[i-1] + nprocs[2*i-2];} 1625 count = 0; 1626 for (i=0; i<size; i++) { 1627 if (nprocs[2*i+1]) { 1628 ierr = MPI_Isend(svalues+starts[i],nprocs[2*i],MPIU_INT,i,tag,comm,send_waits+count++);CHKERRQ(ierr); 1629 } 1630 } 1631 ierr = PetscFree(starts);CHKERRQ(ierr); 1632 1633 base = owners[rank]; 1634 1635 /* wait on receives */ 1636 ierr = PetscMalloc(2*(nrecvs+1)*sizeof(PetscInt),&lens);CHKERRQ(ierr); 1637 source = lens + nrecvs; 1638 count = nrecvs; slen = 0; 1639 while (count) { 1640 ierr = MPI_Waitany(nrecvs,recv_waits,&imdex,&recv_status);CHKERRQ(ierr); 1641 /* unpack receives into our local space */ 1642 ierr = MPI_Get_count(&recv_status,MPIU_INT,&n);CHKERRQ(ierr); 1643 source[imdex] = recv_status.MPI_SOURCE; 1644 lens[imdex] = n; 1645 slen += n; 1646 count--; 1647 } 1648 ierr = PetscFree(recv_waits);CHKERRQ(ierr); 1649 1650 /* move the data into the send scatter */ 1651 ierr = PetscMalloc((slen+1)*sizeof(PetscInt),&lrows);CHKERRQ(ierr); 1652 count = 0; 1653 for (i=0; i<nrecvs; i++) { 1654 values = rvalues + i*nmax; 1655 for (j=0; j<lens[i]; j++) { 1656 lrows[count++] = values[j] - base; 1657 } 1658 } 1659 ierr = PetscFree(rvalues);CHKERRQ(ierr); 1660 ierr = PetscFree(lens);CHKERRQ(ierr); 1661 ierr = PetscFree(owner);CHKERRQ(ierr); 1662 ierr = PetscFree(nprocs);CHKERRQ(ierr); 1663 1664 /* actually zap the local rows */ 1665 /* 1666 Zero the required rows. If the "diagonal block" of the matrix 1667 is square and the user wishes to set the diagonal we use separate 1668 code so that MatSetValues() is not called for each diagonal allocating 1669 new memory, thus calling lots of mallocs and slowing things down. 1670 1671 Contributed by: Matthew Knepley 1672 */ 1673 /* must zero l->B before l->A because the (diag) case below may put values into l->B*/ 1674 ierr = MatZeroRows_SeqBAIJ(l->B,slen,lrows,0.0);CHKERRQ(ierr); 1675 if ((diag != 0.0) && (l->A->rmap->N == l->A->cmap->N)) { 1676 ierr = MatZeroRows_SeqBAIJ(l->A,slen,lrows,diag);CHKERRQ(ierr); 1677 } else if (diag != 0.0) { 1678 ierr = MatZeroRows_SeqBAIJ(l->A,slen,lrows,0.0);CHKERRQ(ierr); 1679 if (((Mat_SeqBAIJ*)l->A->data)->nonew) { 1680 SETERRQ(PETSC_ERR_SUP,"MatZeroRows() on rectangular matrices cannot be used with the Mat options \n\ 1681 MAT_NEW_NONZERO_LOCATIONS,MAT_NEW_NONZERO_LOCATION_ERR,MAT_NEW_NONZERO_ALLOCATION_ERR"); 1682 } 1683 for (i=0; i<slen; i++) { 1684 row = lrows[i] + rstart_bs; 1685 ierr = MatSetValues(A,1,&row,1,&row,&diag,INSERT_VALUES);CHKERRQ(ierr); 1686 } 1687 ierr = MatAssemblyBegin(A,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 1688 ierr = MatAssemblyEnd(A,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 1689 } else { 1690 ierr = MatZeroRows_SeqBAIJ(l->A,slen,lrows,0.0);CHKERRQ(ierr); 1691 } 1692 1693 ierr = PetscFree(lrows);CHKERRQ(ierr); 1694 1695 /* wait on sends */ 1696 if (nsends) { 1697 ierr = PetscMalloc(nsends*sizeof(MPI_Status),&send_status);CHKERRQ(ierr); 1698 ierr = MPI_Waitall(nsends,send_waits,send_status);CHKERRQ(ierr); 1699 ierr = PetscFree(send_status);CHKERRQ(ierr); 1700 } 1701 ierr = PetscFree(send_waits);CHKERRQ(ierr); 1702 ierr = PetscFree(svalues);CHKERRQ(ierr); 1703 1704 PetscFunctionReturn(0); 1705 } 1706 1707 #undef __FUNCT__ 1708 #define __FUNCT__ "MatSetUnfactored_MPIBAIJ" 1709 PetscErrorCode MatSetUnfactored_MPIBAIJ(Mat A) 1710 { 1711 Mat_MPIBAIJ *a = (Mat_MPIBAIJ*)A->data; 1712 PetscErrorCode ierr; 1713 1714 PetscFunctionBegin; 1715 ierr = MatSetUnfactored(a->A);CHKERRQ(ierr); 1716 PetscFunctionReturn(0); 1717 } 1718 1719 static PetscErrorCode MatDuplicate_MPIBAIJ(Mat,MatDuplicateOption,Mat *); 1720 1721 #undef __FUNCT__ 1722 #define __FUNCT__ "MatEqual_MPIBAIJ" 1723 PetscErrorCode MatEqual_MPIBAIJ(Mat A,Mat B,PetscTruth *flag) 1724 { 1725 Mat_MPIBAIJ *matB = (Mat_MPIBAIJ*)B->data,*matA = (Mat_MPIBAIJ*)A->data; 1726 Mat a,b,c,d; 1727 PetscTruth flg; 1728 PetscErrorCode ierr; 1729 1730 PetscFunctionBegin; 1731 a = matA->A; b = matA->B; 1732 c = matB->A; d = matB->B; 1733 1734 ierr = MatEqual(a,c,&flg);CHKERRQ(ierr); 1735 if (flg) { 1736 ierr = MatEqual(b,d,&flg);CHKERRQ(ierr); 1737 } 1738 ierr = MPI_Allreduce(&flg,flag,1,MPI_INT,MPI_LAND,((PetscObject)A)->comm);CHKERRQ(ierr); 1739 PetscFunctionReturn(0); 1740 } 1741 1742 #undef __FUNCT__ 1743 #define __FUNCT__ "MatCopy_MPIBAIJ" 1744 PetscErrorCode MatCopy_MPIBAIJ(Mat A,Mat B,MatStructure str) 1745 { 1746 PetscErrorCode ierr; 1747 Mat_MPIBAIJ *a = (Mat_MPIBAIJ *)A->data; 1748 Mat_MPIBAIJ *b = (Mat_MPIBAIJ *)B->data; 1749 1750 PetscFunctionBegin; 1751 /* If the two matrices don't have the same copy implementation, they aren't compatible for fast copy. */ 1752 if ((str != SAME_NONZERO_PATTERN) || (A->ops->copy != B->ops->copy)) { 1753 ierr = MatCopy_Basic(A,B,str);CHKERRQ(ierr); 1754 } else { 1755 ierr = MatCopy(a->A,b->A,str);CHKERRQ(ierr); 1756 ierr = MatCopy(a->B,b->B,str);CHKERRQ(ierr); 1757 } 1758 PetscFunctionReturn(0); 1759 } 1760 1761 #undef __FUNCT__ 1762 #define __FUNCT__ "MatSetUpPreallocation_MPIBAIJ" 1763 PetscErrorCode MatSetUpPreallocation_MPIBAIJ(Mat A) 1764 { 1765 PetscErrorCode ierr; 1766 1767 PetscFunctionBegin; 1768 ierr = MatMPIBAIJSetPreallocation(A,-PetscMax(A->rmap->bs,1),PETSC_DEFAULT,0,PETSC_DEFAULT,0);CHKERRQ(ierr); 1769 PetscFunctionReturn(0); 1770 } 1771 1772 #include "petscblaslapack.h" 1773 #undef __FUNCT__ 1774 #define __FUNCT__ "MatAXPY_MPIBAIJ" 1775 PetscErrorCode MatAXPY_MPIBAIJ(Mat Y,PetscScalar a,Mat X,MatStructure str) 1776 { 1777 PetscErrorCode ierr; 1778 Mat_MPIBAIJ *xx=(Mat_MPIBAIJ *)X->data,*yy=(Mat_MPIBAIJ *)Y->data; 1779 PetscBLASInt bnz,one=1; 1780 Mat_SeqBAIJ *x,*y; 1781 1782 PetscFunctionBegin; 1783 if (str == SAME_NONZERO_PATTERN) { 1784 PetscScalar alpha = a; 1785 x = (Mat_SeqBAIJ *)xx->A->data; 1786 y = (Mat_SeqBAIJ *)yy->A->data; 1787 bnz = PetscBLASIntCast(x->nz); 1788 BLASaxpy_(&bnz,&alpha,x->a,&one,y->a,&one); 1789 x = (Mat_SeqBAIJ *)xx->B->data; 1790 y = (Mat_SeqBAIJ *)yy->B->data; 1791 bnz = PetscBLASIntCast(x->nz); 1792 BLASaxpy_(&bnz,&alpha,x->a,&one,y->a,&one); 1793 } else { 1794 ierr = MatAXPY_Basic(Y,a,X,str);CHKERRQ(ierr); 1795 } 1796 PetscFunctionReturn(0); 1797 } 1798 1799 #undef __FUNCT__ 1800 #define __FUNCT__ "MatRealPart_MPIBAIJ" 1801 PetscErrorCode MatRealPart_MPIBAIJ(Mat A) 1802 { 1803 Mat_MPIBAIJ *a = (Mat_MPIBAIJ*)A->data; 1804 PetscErrorCode ierr; 1805 1806 PetscFunctionBegin; 1807 ierr = MatRealPart(a->A);CHKERRQ(ierr); 1808 ierr = MatRealPart(a->B);CHKERRQ(ierr); 1809 PetscFunctionReturn(0); 1810 } 1811 1812 #undef __FUNCT__ 1813 #define __FUNCT__ "MatImaginaryPart_MPIBAIJ" 1814 PetscErrorCode MatImaginaryPart_MPIBAIJ(Mat A) 1815 { 1816 Mat_MPIBAIJ *a = (Mat_MPIBAIJ*)A->data; 1817 PetscErrorCode ierr; 1818 1819 PetscFunctionBegin; 1820 ierr = MatImaginaryPart(a->A);CHKERRQ(ierr); 1821 ierr = MatImaginaryPart(a->B);CHKERRQ(ierr); 1822 PetscFunctionReturn(0); 1823 } 1824 1825 #undef __FUNCT__ 1826 #define __FUNCT__ "MatGetSubMatrix_MPIBAIJ" 1827 /* 1828 Not great since it makes two copies of the submatrix, first an SeqBAIJ 1829 in local and then by concatenating the local matrices the end result. 1830 Writing it directly would be much like MatGetSubMatrices_MPIBAIJ() 1831 */ 1832 PetscErrorCode MatGetSubMatrix_MPIBAIJ(Mat mat,IS isrow,IS iscol,PetscInt csize,MatReuse call,Mat *newmat) 1833 { 1834 PetscErrorCode ierr; 1835 PetscMPIInt rank,size; 1836 PetscInt i,m,n,rstart,row,rend,nz,*cwork,j,bs; 1837 PetscInt *ii,*jj,nlocal,*dlens,*olens,dlen,olen,jend,mglobal; 1838 Mat *local,M,Mreuse; 1839 MatScalar *vwork,*aa; 1840 MPI_Comm comm = ((PetscObject)mat)->comm; 1841 Mat_SeqBAIJ *aij; 1842 1843 1844 PetscFunctionBegin; 1845 ierr = MPI_Comm_rank(comm,&rank);CHKERRQ(ierr); 1846 ierr = MPI_Comm_size(comm,&size);CHKERRQ(ierr); 1847 1848 if (call == MAT_REUSE_MATRIX) { 1849 ierr = PetscObjectQuery((PetscObject)*newmat,"SubMatrix",(PetscObject *)&Mreuse);CHKERRQ(ierr); 1850 if (!Mreuse) SETERRQ(PETSC_ERR_ARG_WRONGSTATE,"Submatrix passed in was not used before, cannot reuse"); 1851 local = &Mreuse; 1852 ierr = MatGetSubMatrices(mat,1,&isrow,&iscol,MAT_REUSE_MATRIX,&local);CHKERRQ(ierr); 1853 } else { 1854 ierr = MatGetSubMatrices(mat,1,&isrow,&iscol,MAT_INITIAL_MATRIX,&local);CHKERRQ(ierr); 1855 Mreuse = *local; 1856 ierr = PetscFree(local);CHKERRQ(ierr); 1857 } 1858 1859 /* 1860 m - number of local rows 1861 n - number of columns (same on all processors) 1862 rstart - first row in new global matrix generated 1863 */ 1864 ierr = MatGetBlockSize(mat,&bs);CHKERRQ(ierr); 1865 ierr = MatGetSize(Mreuse,&m,&n);CHKERRQ(ierr); 1866 m = m/bs; 1867 n = n/bs; 1868 1869 if (call == MAT_INITIAL_MATRIX) { 1870 aij = (Mat_SeqBAIJ*)(Mreuse)->data; 1871 ii = aij->i; 1872 jj = aij->j; 1873 1874 /* 1875 Determine the number of non-zeros in the diagonal and off-diagonal 1876 portions of the matrix in order to do correct preallocation 1877 */ 1878 1879 /* first get start and end of "diagonal" columns */ 1880 if (csize == PETSC_DECIDE) { 1881 ierr = ISGetSize(isrow,&mglobal);CHKERRQ(ierr); 1882 if (mglobal == n*bs) { /* square matrix */ 1883 nlocal = m; 1884 } else { 1885 nlocal = n/size + ((n % size) > rank); 1886 } 1887 } else { 1888 nlocal = csize/bs; 1889 } 1890 ierr = MPI_Scan(&nlocal,&rend,1,MPIU_INT,MPI_SUM,comm);CHKERRQ(ierr); 1891 rstart = rend - nlocal; 1892 if (rank == size - 1 && rend != n) { 1893 SETERRQ2(PETSC_ERR_ARG_SIZ,"Local column sizes %D do not add up to total number of columns %D",rend,n); 1894 } 1895 1896 /* next, compute all the lengths */ 1897 ierr = PetscMalloc((2*m+1)*sizeof(PetscInt),&dlens);CHKERRQ(ierr); 1898 olens = dlens + m; 1899 for (i=0; i<m; i++) { 1900 jend = ii[i+1] - ii[i]; 1901 olen = 0; 1902 dlen = 0; 1903 for (j=0; j<jend; j++) { 1904 if (*jj < rstart || *jj >= rend) olen++; 1905 else dlen++; 1906 jj++; 1907 } 1908 olens[i] = olen; 1909 dlens[i] = dlen; 1910 } 1911 ierr = MatCreate(comm,&M);CHKERRQ(ierr); 1912 ierr = MatSetSizes(M,bs*m,bs*nlocal,PETSC_DECIDE,bs*n);CHKERRQ(ierr); 1913 ierr = MatSetType(M,((PetscObject)mat)->type_name);CHKERRQ(ierr); 1914 ierr = MatMPIBAIJSetPreallocation(M,bs,0,dlens,0,olens);CHKERRQ(ierr); 1915 ierr = PetscFree(dlens);CHKERRQ(ierr); 1916 } else { 1917 PetscInt ml,nl; 1918 1919 M = *newmat; 1920 ierr = MatGetLocalSize(M,&ml,&nl);CHKERRQ(ierr); 1921 if (ml != m) SETERRQ(PETSC_ERR_ARG_SIZ,"Previous matrix must be same size/layout as request"); 1922 ierr = MatZeroEntries(M);CHKERRQ(ierr); 1923 /* 1924 The next two lines are needed so we may call MatSetValues_MPIAIJ() below directly, 1925 rather than the slower MatSetValues(). 1926 */ 1927 M->was_assembled = PETSC_TRUE; 1928 M->assembled = PETSC_FALSE; 1929 } 1930 ierr = MatSetOption(M,MAT_ROW_ORIENTED,PETSC_FALSE);CHKERRQ(ierr); 1931 ierr = MatGetOwnershipRange(M,&rstart,&rend);CHKERRQ(ierr); 1932 aij = (Mat_SeqBAIJ*)(Mreuse)->data; 1933 ii = aij->i; 1934 jj = aij->j; 1935 aa = aij->a; 1936 for (i=0; i<m; i++) { 1937 row = rstart/bs + i; 1938 nz = ii[i+1] - ii[i]; 1939 cwork = jj; jj += nz; 1940 vwork = aa; aa += nz; 1941 ierr = MatSetValuesBlocked_MPIBAIJ(M,1,&row,nz,cwork,vwork,INSERT_VALUES);CHKERRQ(ierr); 1942 } 1943 1944 ierr = MatAssemblyBegin(M,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 1945 ierr = MatAssemblyEnd(M,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 1946 *newmat = M; 1947 1948 /* save submatrix used in processor for next request */ 1949 if (call == MAT_INITIAL_MATRIX) { 1950 ierr = PetscObjectCompose((PetscObject)M,"SubMatrix",(PetscObject)Mreuse);CHKERRQ(ierr); 1951 ierr = PetscObjectDereference((PetscObject)Mreuse);CHKERRQ(ierr); 1952 } 1953 1954 PetscFunctionReturn(0); 1955 } 1956 1957 #undef __FUNCT__ 1958 #define __FUNCT__ "MatPermute_MPIBAIJ" 1959 PetscErrorCode MatPermute_MPIBAIJ(Mat A,IS rowp,IS colp,Mat *B) 1960 { 1961 MPI_Comm comm,pcomm; 1962 PetscInt first,local_size,nrows; 1963 const PetscInt *rows; 1964 PetscMPIInt size; 1965 IS crowp,growp,irowp,lrowp,lcolp,icolp; 1966 PetscErrorCode ierr; 1967 1968 PetscFunctionBegin; 1969 ierr = PetscObjectGetComm((PetscObject)A,&comm);CHKERRQ(ierr); 1970 /* make a collective version of 'rowp' */ 1971 ierr = PetscObjectGetComm((PetscObject)rowp,&pcomm);CHKERRQ(ierr); 1972 if (pcomm==comm) { 1973 crowp = rowp; 1974 } else { 1975 ierr = ISGetSize(rowp,&nrows);CHKERRQ(ierr); 1976 ierr = ISGetIndices(rowp,&rows);CHKERRQ(ierr); 1977 ierr = ISCreateGeneral(comm,nrows,rows,&crowp);CHKERRQ(ierr); 1978 ierr = ISRestoreIndices(rowp,&rows);CHKERRQ(ierr); 1979 } 1980 /* collect the global row permutation and invert it */ 1981 ierr = ISAllGather(crowp,&growp);CHKERRQ(ierr); 1982 ierr = ISSetPermutation(growp);CHKERRQ(ierr); 1983 if (pcomm!=comm) { 1984 ierr = ISDestroy(crowp);CHKERRQ(ierr); 1985 } 1986 ierr = ISInvertPermutation(growp,PETSC_DECIDE,&irowp);CHKERRQ(ierr); 1987 /* get the local target indices */ 1988 ierr = MatGetOwnershipRange(A,&first,PETSC_NULL);CHKERRQ(ierr); 1989 ierr = MatGetLocalSize(A,&local_size,PETSC_NULL);CHKERRQ(ierr); 1990 ierr = ISGetIndices(irowp,&rows);CHKERRQ(ierr); 1991 ierr = ISCreateGeneral(MPI_COMM_SELF,local_size,rows+first,&lrowp);CHKERRQ(ierr); 1992 ierr = ISRestoreIndices(irowp,&rows);CHKERRQ(ierr); 1993 ierr = ISDestroy(irowp);CHKERRQ(ierr); 1994 /* the column permutation is so much easier; 1995 make a local version of 'colp' and invert it */ 1996 ierr = PetscObjectGetComm((PetscObject)colp,&pcomm);CHKERRQ(ierr); 1997 ierr = MPI_Comm_size(pcomm,&size);CHKERRQ(ierr); 1998 if (size==1) { 1999 lcolp = colp; 2000 } else { 2001 ierr = ISGetSize(colp,&nrows);CHKERRQ(ierr); 2002 ierr = ISGetIndices(colp,&rows);CHKERRQ(ierr); 2003 ierr = ISCreateGeneral(MPI_COMM_SELF,nrows,rows,&lcolp);CHKERRQ(ierr); 2004 } 2005 ierr = ISSetPermutation(lcolp);CHKERRQ(ierr); 2006 ierr = ISInvertPermutation(lcolp,PETSC_DECIDE,&icolp);CHKERRQ(ierr); 2007 ierr = ISSetPermutation(lcolp);CHKERRQ(ierr); 2008 if (size>1) { 2009 ierr = ISRestoreIndices(colp,&rows);CHKERRQ(ierr); 2010 ierr = ISDestroy(lcolp);CHKERRQ(ierr); 2011 } 2012 /* now we just get the submatrix */ 2013 ierr = MatGetSubMatrix(A,lrowp,icolp,local_size,MAT_INITIAL_MATRIX,B);CHKERRQ(ierr); 2014 /* clean up */ 2015 ierr = ISDestroy(lrowp);CHKERRQ(ierr); 2016 ierr = ISDestroy(icolp);CHKERRQ(ierr); 2017 PetscFunctionReturn(0); 2018 } 2019 2020 #undef __FUNCT__ 2021 #define __FUNCT__ "MatGetGhosts_MPIBAIJ" 2022 PetscErrorCode PETSCMAT_DLLEXPORT MatGetGhosts_MPIBAIJ(Mat mat,PetscInt *nghosts,const PetscInt *ghosts[]) 2023 { 2024 Mat_MPIBAIJ *baij = (Mat_MPIBAIJ*) mat->data; 2025 Mat_SeqBAIJ *B = (Mat_SeqBAIJ*)baij->B->data; 2026 2027 PetscFunctionBegin; 2028 if (nghosts) { *nghosts = B->nbs;} 2029 if (ghosts) {*ghosts = baij->garray;} 2030 PetscFunctionReturn(0); 2031 } 2032 2033 2034 /* -------------------------------------------------------------------*/ 2035 static struct _MatOps MatOps_Values = { 2036 MatSetValues_MPIBAIJ, 2037 MatGetRow_MPIBAIJ, 2038 MatRestoreRow_MPIBAIJ, 2039 MatMult_MPIBAIJ, 2040 /* 4*/ MatMultAdd_MPIBAIJ, 2041 MatMultTranspose_MPIBAIJ, 2042 MatMultTransposeAdd_MPIBAIJ, 2043 0, 2044 0, 2045 0, 2046 /*10*/ 0, 2047 0, 2048 0, 2049 0, 2050 MatTranspose_MPIBAIJ, 2051 /*15*/ MatGetInfo_MPIBAIJ, 2052 MatEqual_MPIBAIJ, 2053 MatGetDiagonal_MPIBAIJ, 2054 MatDiagonalScale_MPIBAIJ, 2055 MatNorm_MPIBAIJ, 2056 /*20*/ MatAssemblyBegin_MPIBAIJ, 2057 MatAssemblyEnd_MPIBAIJ, 2058 MatSetOption_MPIBAIJ, 2059 MatZeroEntries_MPIBAIJ, 2060 /*24*/ MatZeroRows_MPIBAIJ, 2061 0, 2062 0, 2063 0, 2064 0, 2065 /*29*/ MatSetUpPreallocation_MPIBAIJ, 2066 0, 2067 0, 2068 0, 2069 0, 2070 /*34*/ MatDuplicate_MPIBAIJ, 2071 0, 2072 0, 2073 0, 2074 0, 2075 /*39*/ MatAXPY_MPIBAIJ, 2076 MatGetSubMatrices_MPIBAIJ, 2077 MatIncreaseOverlap_MPIBAIJ, 2078 MatGetValues_MPIBAIJ, 2079 MatCopy_MPIBAIJ, 2080 /*44*/ 0, 2081 MatScale_MPIBAIJ, 2082 0, 2083 0, 2084 0, 2085 /*49*/ 0, 2086 0, 2087 0, 2088 0, 2089 0, 2090 /*54*/ 0, 2091 0, 2092 MatSetUnfactored_MPIBAIJ, 2093 MatPermute_MPIBAIJ, 2094 MatSetValuesBlocked_MPIBAIJ, 2095 /*59*/ MatGetSubMatrix_MPIBAIJ, 2096 MatDestroy_MPIBAIJ, 2097 MatView_MPIBAIJ, 2098 0, 2099 0, 2100 /*64*/ 0, 2101 0, 2102 0, 2103 0, 2104 0, 2105 /*69*/ MatGetRowMaxAbs_MPIBAIJ, 2106 0, 2107 0, 2108 0, 2109 0, 2110 /*74*/ 0, 2111 0, 2112 0, 2113 0, 2114 0, 2115 /*79*/ 0, 2116 0, 2117 0, 2118 0, 2119 MatLoad_MPIBAIJ, 2120 /*84*/ 0, 2121 0, 2122 0, 2123 0, 2124 0, 2125 /*89*/ 0, 2126 0, 2127 0, 2128 0, 2129 0, 2130 /*94*/ 0, 2131 0, 2132 0, 2133 0, 2134 0, 2135 /*99*/ 0, 2136 0, 2137 0, 2138 0, 2139 0, 2140 /*104*/0, 2141 MatRealPart_MPIBAIJ, 2142 MatImaginaryPart_MPIBAIJ, 2143 0, 2144 0, 2145 /*109*/0, 2146 0, 2147 0, 2148 0, 2149 0, 2150 /*114*/0, 2151 0, 2152 MatGetGhosts_MPIBAIJ 2153 }; 2154 2155 2156 EXTERN_C_BEGIN 2157 #undef __FUNCT__ 2158 #define __FUNCT__ "MatGetDiagonalBlock_MPIBAIJ" 2159 PetscErrorCode PETSCMAT_DLLEXPORT MatGetDiagonalBlock_MPIBAIJ(Mat A,PetscTruth *iscopy,MatReuse reuse,Mat *a) 2160 { 2161 PetscFunctionBegin; 2162 *a = ((Mat_MPIBAIJ *)A->data)->A; 2163 *iscopy = PETSC_FALSE; 2164 PetscFunctionReturn(0); 2165 } 2166 EXTERN_C_END 2167 2168 EXTERN_C_BEGIN 2169 extern PetscErrorCode PETSCMAT_DLLEXPORT MatConvert_MPIBAIJ_MPISBAIJ(Mat, MatType,MatReuse,Mat*); 2170 EXTERN_C_END 2171 2172 EXTERN_C_BEGIN 2173 #undef __FUNCT__ 2174 #define __FUNCT__ "MatMPIBAIJSetPreallocationCSR_MPIBAIJ" 2175 PetscErrorCode MatMPIBAIJSetPreallocationCSR_MPIBAIJ(Mat B,PetscInt bs,const PetscInt ii[],const PetscInt jj[],const PetscScalar V[]) 2176 { 2177 PetscInt m,rstart,cstart,cend; 2178 PetscInt i,j,d,nz,nz_max=0,*d_nnz=0,*o_nnz=0; 2179 const PetscInt *JJ=0; 2180 PetscScalar *values=0; 2181 PetscErrorCode ierr; 2182 2183 PetscFunctionBegin; 2184 2185 if (bs < 1) SETERRQ1(PETSC_ERR_ARG_OUTOFRANGE,"Invalid block size specified, must be positive but it is %D",bs); 2186 ierr = PetscMapSetBlockSize(B->rmap,bs);CHKERRQ(ierr); 2187 ierr = PetscMapSetBlockSize(B->cmap,bs);CHKERRQ(ierr); 2188 ierr = PetscMapSetUp(B->rmap);CHKERRQ(ierr); 2189 ierr = PetscMapSetUp(B->cmap);CHKERRQ(ierr); 2190 m = B->rmap->n/bs; 2191 rstart = B->rmap->rstart/bs; 2192 cstart = B->cmap->rstart/bs; 2193 cend = B->cmap->rend/bs; 2194 2195 if (ii[0]) SETERRQ1(PETSC_ERR_ARG_OUTOFRANGE,"ii[0] must be 0 but it is %D",ii[0]); 2196 ierr = PetscMalloc((2*m+1)*sizeof(PetscInt),&d_nnz);CHKERRQ(ierr); 2197 o_nnz = d_nnz + m; 2198 for (i=0; i<m; i++) { 2199 nz = ii[i+1] - ii[i]; 2200 if (nz < 0) SETERRQ2(PETSC_ERR_ARG_OUTOFRANGE,"Local row %D has a negative number of columns %D",i,nz); 2201 nz_max = PetscMax(nz_max,nz); 2202 JJ = jj + ii[i]; 2203 for (j=0; j<nz; j++) { 2204 if (*JJ >= cstart) break; 2205 JJ++; 2206 } 2207 d = 0; 2208 for (; j<nz; j++) { 2209 if (*JJ++ >= cend) break; 2210 d++; 2211 } 2212 d_nnz[i] = d; 2213 o_nnz[i] = nz - d; 2214 } 2215 ierr = MatMPIBAIJSetPreallocation(B,bs,0,d_nnz,0,o_nnz);CHKERRQ(ierr); 2216 ierr = PetscFree(d_nnz);CHKERRQ(ierr); 2217 2218 values = (PetscScalar*)V; 2219 if (!values) { 2220 ierr = PetscMalloc(bs*bs*(nz_max+1)*sizeof(PetscScalar),&values);CHKERRQ(ierr); 2221 ierr = PetscMemzero(values,bs*bs*nz_max*sizeof(PetscScalar));CHKERRQ(ierr); 2222 } 2223 for (i=0; i<m; i++) { 2224 PetscInt row = i + rstart; 2225 PetscInt ncols = ii[i+1] - ii[i]; 2226 const PetscInt *icols = jj + ii[i]; 2227 const PetscScalar *svals = values + (V ? (bs*bs*ii[i]) : 0); 2228 ierr = MatSetValuesBlocked_MPIBAIJ(B,1,&row,ncols,icols,svals,INSERT_VALUES);CHKERRQ(ierr); 2229 } 2230 2231 if (!V) { ierr = PetscFree(values);CHKERRQ(ierr); } 2232 ierr = MatAssemblyBegin(B,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 2233 ierr = MatAssemblyEnd(B,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 2234 2235 PetscFunctionReturn(0); 2236 } 2237 EXTERN_C_END 2238 2239 #undef __FUNCT__ 2240 #define __FUNCT__ "MatMPIBAIJSetPreallocationCSR" 2241 /*@C 2242 MatMPIBAIJSetPreallocationCSR - Allocates memory for a sparse parallel matrix in AIJ format 2243 (the default parallel PETSc format). 2244 2245 Collective on MPI_Comm 2246 2247 Input Parameters: 2248 + A - the matrix 2249 . i - the indices into j for the start of each local row (starts with zero) 2250 . j - the column indices for each local row (starts with zero) these must be sorted for each row 2251 - v - optional values in the matrix 2252 2253 Level: developer 2254 2255 .keywords: matrix, aij, compressed row, sparse, parallel 2256 2257 .seealso: MatCreate(), MatCreateSeqAIJ(), MatSetValues(), MatMPIBAIJSetPreallocation(), MatCreateMPIAIJ(), MPIAIJ 2258 @*/ 2259 PetscErrorCode PETSCMAT_DLLEXPORT MatMPIBAIJSetPreallocationCSR(Mat B,PetscInt bs,const PetscInt i[],const PetscInt j[], const PetscScalar v[]) 2260 { 2261 PetscErrorCode ierr,(*f)(Mat,PetscInt,const PetscInt[],const PetscInt[],const PetscScalar[]); 2262 2263 PetscFunctionBegin; 2264 ierr = PetscObjectQueryFunction((PetscObject)B,"MatMPIBAIJSetPreallocationCSR_C",(void (**)(void))&f);CHKERRQ(ierr); 2265 if (f) { 2266 ierr = (*f)(B,bs,i,j,v);CHKERRQ(ierr); 2267 } 2268 PetscFunctionReturn(0); 2269 } 2270 2271 EXTERN_C_BEGIN 2272 #undef __FUNCT__ 2273 #define __FUNCT__ "MatMPIBAIJSetPreallocation_MPIBAIJ" 2274 PetscErrorCode PETSCMAT_DLLEXPORT MatMPIBAIJSetPreallocation_MPIBAIJ(Mat B,PetscInt bs,PetscInt d_nz,PetscInt *d_nnz,PetscInt o_nz,PetscInt *o_nnz) 2275 { 2276 Mat_MPIBAIJ *b; 2277 PetscErrorCode ierr; 2278 PetscInt i, newbs = PetscAbs(bs); 2279 2280 PetscFunctionBegin; 2281 B->preallocated = PETSC_TRUE; 2282 if (bs < 0) { 2283 ierr = PetscOptionsBegin(((PetscObject)B)->comm,((PetscObject)B)->prefix,"Options for MPIBAIJ matrix","Mat");CHKERRQ(ierr); 2284 ierr = PetscOptionsInt("-mat_block_size","Set the blocksize used to store the matrix","MatMPIBAIJSetPreallocation",newbs,&newbs,PETSC_NULL);CHKERRQ(ierr); 2285 ierr = PetscOptionsEnd();CHKERRQ(ierr); 2286 bs = PetscAbs(bs); 2287 } 2288 if ((d_nnz || o_nnz) && newbs != bs) { 2289 SETERRQ(PETSC_ERR_ARG_WRONG,"Cannot change blocksize from command line if setting d_nnz or o_nnz"); 2290 } 2291 bs = newbs; 2292 2293 2294 if (bs < 1) SETERRQ(PETSC_ERR_ARG_OUTOFRANGE,"Invalid block size specified, must be positive"); 2295 if (d_nz == PETSC_DEFAULT || d_nz == PETSC_DECIDE) d_nz = 5; 2296 if (o_nz == PETSC_DEFAULT || o_nz == PETSC_DECIDE) o_nz = 2; 2297 if (d_nz < 0) SETERRQ1(PETSC_ERR_ARG_OUTOFRANGE,"d_nz cannot be less than 0: value %D",d_nz); 2298 if (o_nz < 0) SETERRQ1(PETSC_ERR_ARG_OUTOFRANGE,"o_nz cannot be less than 0: value %D",o_nz); 2299 2300 ierr = PetscMapSetBlockSize(B->rmap,bs);CHKERRQ(ierr); 2301 ierr = PetscMapSetBlockSize(B->cmap,bs);CHKERRQ(ierr); 2302 ierr = PetscMapSetUp(B->rmap);CHKERRQ(ierr); 2303 ierr = PetscMapSetUp(B->cmap);CHKERRQ(ierr); 2304 2305 if (d_nnz) { 2306 for (i=0; i<B->rmap->n/bs; i++) { 2307 if (d_nnz[i] < 0) SETERRQ2(PETSC_ERR_ARG_OUTOFRANGE,"d_nnz cannot be less than -1: local row %D value %D",i,d_nnz[i]); 2308 } 2309 } 2310 if (o_nnz) { 2311 for (i=0; i<B->rmap->n/bs; i++) { 2312 if (o_nnz[i] < 0) SETERRQ2(PETSC_ERR_ARG_OUTOFRANGE,"o_nnz cannot be less than -1: local row %D value %D",i,o_nnz[i]); 2313 } 2314 } 2315 2316 b = (Mat_MPIBAIJ*)B->data; 2317 b->bs2 = bs*bs; 2318 b->mbs = B->rmap->n/bs; 2319 b->nbs = B->cmap->n/bs; 2320 b->Mbs = B->rmap->N/bs; 2321 b->Nbs = B->cmap->N/bs; 2322 2323 for (i=0; i<=b->size; i++) { 2324 b->rangebs[i] = B->rmap->range[i]/bs; 2325 } 2326 b->rstartbs = B->rmap->rstart/bs; 2327 b->rendbs = B->rmap->rend/bs; 2328 b->cstartbs = B->cmap->rstart/bs; 2329 b->cendbs = B->cmap->rend/bs; 2330 2331 ierr = MatCreate(PETSC_COMM_SELF,&b->A);CHKERRQ(ierr); 2332 ierr = MatSetSizes(b->A,B->rmap->n,B->cmap->n,B->rmap->n,B->cmap->n);CHKERRQ(ierr); 2333 ierr = MatSetType(b->A,MATSEQBAIJ);CHKERRQ(ierr); 2334 ierr = MatSeqBAIJSetPreallocation(b->A,bs,d_nz,d_nnz);CHKERRQ(ierr); 2335 ierr = PetscLogObjectParent(B,b->A);CHKERRQ(ierr); 2336 ierr = MatCreate(PETSC_COMM_SELF,&b->B);CHKERRQ(ierr); 2337 ierr = MatSetSizes(b->B,B->rmap->n,B->cmap->N,B->rmap->n,B->cmap->N);CHKERRQ(ierr); 2338 ierr = MatSetType(b->B,MATSEQBAIJ);CHKERRQ(ierr); 2339 ierr = MatSeqBAIJSetPreallocation(b->B,bs,o_nz,o_nnz);CHKERRQ(ierr); 2340 ierr = PetscLogObjectParent(B,b->B);CHKERRQ(ierr); 2341 2342 ierr = MatStashCreate_Private(((PetscObject)B)->comm,bs,&B->bstash);CHKERRQ(ierr); 2343 2344 PetscFunctionReturn(0); 2345 } 2346 EXTERN_C_END 2347 2348 EXTERN_C_BEGIN 2349 EXTERN PetscErrorCode PETSCMAT_DLLEXPORT MatDiagonalScaleLocal_MPIBAIJ(Mat,Vec); 2350 EXTERN PetscErrorCode PETSCMAT_DLLEXPORT MatSetHashTableFactor_MPIBAIJ(Mat,PetscReal); 2351 EXTERN_C_END 2352 2353 2354 EXTERN_C_BEGIN 2355 #undef __FUNCT__ 2356 #define __FUNCT__ "MatConvert_MPIBAIJ_MPIAdj" 2357 PetscErrorCode PETSCMAT_DLLEXPORT MatConvert_MPIBAIJ_MPIAdj(Mat B, const MatType newtype,MatReuse reuse,Mat *adj) 2358 { 2359 Mat_MPIBAIJ *b = (Mat_MPIBAIJ*)B->data; 2360 PetscErrorCode ierr; 2361 Mat_SeqBAIJ *d = (Mat_SeqBAIJ*) b->A->data,*o = (Mat_SeqBAIJ*) b->B->data; 2362 PetscInt M = B->rmap->n/B->rmap->bs,i,*ii,*jj,cnt,j,k,rstart = B->rmap->rstart/B->rmap->bs; 2363 const PetscInt *id = d->i, *jd = d->j, *io = o->i, *jo = o->j, *garray = b->garray; 2364 2365 PetscFunctionBegin; 2366 ierr = PetscMalloc((M+1)*sizeof(PetscInt),&ii);CHKERRQ(ierr); 2367 ii[0] = 0; 2368 CHKMEMQ; 2369 for (i=0; i<M; i++) { 2370 if ((id[i+1] - id[i]) < 0) SETERRQ3(PETSC_ERR_PLIB,"Indices wrong %D %D %D",i,id[i],id[i+1]); 2371 if ((io[i+1] - io[i]) < 0) SETERRQ3(PETSC_ERR_PLIB,"Indices wrong %D %D %D",i,io[i],io[i+1]); 2372 ii[i+1] = ii[i] + id[i+1] - id[i] + io[i+1] - io[i]; 2373 /* remove one from count of matrix has diagonal */ 2374 for (j=id[i]; j<id[i+1]; j++) { 2375 if (jd[j] == i) {ii[i+1]--;break;} 2376 } 2377 CHKMEMQ; 2378 } 2379 ierr = PetscMalloc(ii[M]*sizeof(PetscInt),&jj);CHKERRQ(ierr); 2380 cnt = 0; 2381 for (i=0; i<M; i++) { 2382 for (j=io[i]; j<io[i+1]; j++) { 2383 if (garray[jo[j]] > rstart) break; 2384 jj[cnt++] = garray[jo[j]]; 2385 CHKMEMQ; 2386 } 2387 for (k=id[i]; k<id[i+1]; k++) { 2388 if (jd[k] != i) { 2389 jj[cnt++] = rstart + jd[k]; 2390 CHKMEMQ; 2391 } 2392 } 2393 for (;j<io[i+1]; j++) { 2394 jj[cnt++] = garray[jo[j]]; 2395 CHKMEMQ; 2396 } 2397 } 2398 ierr = MatCreateMPIAdj(((PetscObject)B)->comm,M,B->cmap->N/B->rmap->bs,ii,jj,PETSC_NULL,adj);CHKERRQ(ierr); 2399 PetscFunctionReturn(0); 2400 } 2401 EXTERN_C_END 2402 2403 /*MC 2404 MATMPIBAIJ - MATMPIBAIJ = "mpibaij" - A matrix type to be used for distributed block sparse matrices. 2405 2406 Options Database Keys: 2407 + -mat_type mpibaij - sets the matrix type to "mpibaij" during a call to MatSetFromOptions() 2408 . -mat_block_size <bs> - set the blocksize used to store the matrix 2409 - -mat_use_hash_table <fact> 2410 2411 Level: beginner 2412 2413 .seealso: MatCreateMPIBAIJ 2414 M*/ 2415 2416 EXTERN_C_BEGIN 2417 #undef __FUNCT__ 2418 #define __FUNCT__ "MatCreate_MPIBAIJ" 2419 PetscErrorCode PETSCMAT_DLLEXPORT MatCreate_MPIBAIJ(Mat B) 2420 { 2421 Mat_MPIBAIJ *b; 2422 PetscErrorCode ierr; 2423 PetscTruth flg; 2424 2425 PetscFunctionBegin; 2426 ierr = PetscNewLog(B,Mat_MPIBAIJ,&b);CHKERRQ(ierr); 2427 B->data = (void*)b; 2428 2429 2430 ierr = PetscMemcpy(B->ops,&MatOps_Values,sizeof(struct _MatOps));CHKERRQ(ierr); 2431 B->mapping = 0; 2432 B->assembled = PETSC_FALSE; 2433 2434 B->insertmode = NOT_SET_VALUES; 2435 ierr = MPI_Comm_rank(((PetscObject)B)->comm,&b->rank);CHKERRQ(ierr); 2436 ierr = MPI_Comm_size(((PetscObject)B)->comm,&b->size);CHKERRQ(ierr); 2437 2438 /* build local table of row and column ownerships */ 2439 ierr = PetscMalloc((b->size+1)*sizeof(PetscInt),&b->rangebs);CHKERRQ(ierr); 2440 2441 /* build cache for off array entries formed */ 2442 ierr = MatStashCreate_Private(((PetscObject)B)->comm,1,&B->stash);CHKERRQ(ierr); 2443 b->donotstash = PETSC_FALSE; 2444 b->colmap = PETSC_NULL; 2445 b->garray = PETSC_NULL; 2446 b->roworiented = PETSC_TRUE; 2447 2448 /* stuff used in block assembly */ 2449 b->barray = 0; 2450 2451 /* stuff used for matrix vector multiply */ 2452 b->lvec = 0; 2453 b->Mvctx = 0; 2454 2455 /* stuff for MatGetRow() */ 2456 b->rowindices = 0; 2457 b->rowvalues = 0; 2458 b->getrowactive = PETSC_FALSE; 2459 2460 /* hash table stuff */ 2461 b->ht = 0; 2462 b->hd = 0; 2463 b->ht_size = 0; 2464 b->ht_flag = PETSC_FALSE; 2465 b->ht_fact = 0; 2466 b->ht_total_ct = 0; 2467 b->ht_insert_ct = 0; 2468 2469 ierr = PetscOptionsBegin(((PetscObject)B)->comm,PETSC_NULL,"Options for loading MPIBAIJ matrix 1","Mat");CHKERRQ(ierr); 2470 ierr = PetscOptionsTruth("-mat_use_hash_table","Use hash table to save memory in constructing matrix","MatSetOption",PETSC_FALSE,&flg,PETSC_NULL);CHKERRQ(ierr); 2471 if (flg) { 2472 PetscReal fact = 1.39; 2473 ierr = MatSetOption(B,MAT_USE_HASH_TABLE,PETSC_TRUE);CHKERRQ(ierr); 2474 ierr = PetscOptionsReal("-mat_use_hash_table","Use hash table factor","MatMPIBAIJSetHashTableFactor",fact,&fact,PETSC_NULL);CHKERRQ(ierr); 2475 if (fact <= 1.0) fact = 1.39; 2476 ierr = MatMPIBAIJSetHashTableFactor(B,fact);CHKERRQ(ierr); 2477 ierr = PetscInfo1(B,"Hash table Factor used %5.2f\n",fact);CHKERRQ(ierr); 2478 } 2479 ierr = PetscOptionsEnd();CHKERRQ(ierr); 2480 2481 ierr = PetscObjectComposeFunctionDynamic((PetscObject)B,"MatConvert_mpibaij_mpiadj_C", 2482 "MatConvert_MPIBAIJ_MPIAdj", 2483 MatConvert_MPIBAIJ_MPIAdj);CHKERRQ(ierr); 2484 ierr = PetscObjectComposeFunctionDynamic((PetscObject)B,"MatStoreValues_C", 2485 "MatStoreValues_MPIBAIJ", 2486 MatStoreValues_MPIBAIJ);CHKERRQ(ierr); 2487 ierr = PetscObjectComposeFunctionDynamic((PetscObject)B,"MatRetrieveValues_C", 2488 "MatRetrieveValues_MPIBAIJ", 2489 MatRetrieveValues_MPIBAIJ);CHKERRQ(ierr); 2490 ierr = PetscObjectComposeFunctionDynamic((PetscObject)B,"MatGetDiagonalBlock_C", 2491 "MatGetDiagonalBlock_MPIBAIJ", 2492 MatGetDiagonalBlock_MPIBAIJ);CHKERRQ(ierr); 2493 ierr = PetscObjectComposeFunctionDynamic((PetscObject)B,"MatMPIBAIJSetPreallocation_C", 2494 "MatMPIBAIJSetPreallocation_MPIBAIJ", 2495 MatMPIBAIJSetPreallocation_MPIBAIJ);CHKERRQ(ierr); 2496 ierr = PetscObjectComposeFunctionDynamic((PetscObject)B,"MatMPIBAIJSetPreallocationCSR_C", 2497 "MatMPIBAIJSetPreallocationCSR_MPIBAIJ", 2498 MatMPIBAIJSetPreallocationCSR_MPIBAIJ);CHKERRQ(ierr); 2499 ierr = PetscObjectComposeFunctionDynamic((PetscObject)B,"MatDiagonalScaleLocal_C", 2500 "MatDiagonalScaleLocal_MPIBAIJ", 2501 MatDiagonalScaleLocal_MPIBAIJ);CHKERRQ(ierr); 2502 ierr = PetscObjectComposeFunctionDynamic((PetscObject)B,"MatSetHashTableFactor_C", 2503 "MatSetHashTableFactor_MPIBAIJ", 2504 MatSetHashTableFactor_MPIBAIJ);CHKERRQ(ierr); 2505 ierr = PetscObjectChangeTypeName((PetscObject)B,MATMPIBAIJ);CHKERRQ(ierr); 2506 PetscFunctionReturn(0); 2507 } 2508 EXTERN_C_END 2509 2510 /*MC 2511 MATBAIJ - MATBAIJ = "baij" - A matrix type to be used for block sparse matrices. 2512 2513 This matrix type is identical to MATSEQBAIJ when constructed with a single process communicator, 2514 and MATMPIBAIJ otherwise. 2515 2516 Options Database Keys: 2517 . -mat_type baij - sets the matrix type to "baij" during a call to MatSetFromOptions() 2518 2519 Level: beginner 2520 2521 .seealso: MatCreateMPIBAIJ(),MATSEQBAIJ,MATMPIBAIJ, MatMPIBAIJSetPreallocation(), MatMPIBAIJSetPreallocationCSR() 2522 M*/ 2523 2524 EXTERN_C_BEGIN 2525 #undef __FUNCT__ 2526 #define __FUNCT__ "MatCreate_BAIJ" 2527 PetscErrorCode PETSCMAT_DLLEXPORT MatCreate_BAIJ(Mat A) 2528 { 2529 PetscErrorCode ierr; 2530 PetscMPIInt size; 2531 2532 PetscFunctionBegin; 2533 ierr = MPI_Comm_size(((PetscObject)A)->comm,&size);CHKERRQ(ierr); 2534 if (size == 1) { 2535 ierr = MatSetType(A,MATSEQBAIJ);CHKERRQ(ierr); 2536 } else { 2537 ierr = MatSetType(A,MATMPIBAIJ);CHKERRQ(ierr); 2538 } 2539 PetscFunctionReturn(0); 2540 } 2541 EXTERN_C_END 2542 2543 #undef __FUNCT__ 2544 #define __FUNCT__ "MatMPIBAIJSetPreallocation" 2545 /*@C 2546 MatMPIBAIJSetPreallocation - Allocates memory for a sparse parallel matrix in block AIJ format 2547 (block compressed row). For good matrix assembly performance 2548 the user should preallocate the matrix storage by setting the parameters 2549 d_nz (or d_nnz) and o_nz (or o_nnz). By setting these parameters accurately, 2550 performance can be increased by more than a factor of 50. 2551 2552 Collective on Mat 2553 2554 Input Parameters: 2555 + A - the matrix 2556 . bs - size of blockk 2557 . d_nz - number of block nonzeros per block row in diagonal portion of local 2558 submatrix (same for all local rows) 2559 . d_nnz - array containing the number of block nonzeros in the various block rows 2560 of the in diagonal portion of the local (possibly different for each block 2561 row) or PETSC_NULL. You must leave room for the diagonal entry even if it is zero. 2562 . o_nz - number of block nonzeros per block row in the off-diagonal portion of local 2563 submatrix (same for all local rows). 2564 - o_nnz - array containing the number of nonzeros in the various block rows of the 2565 off-diagonal portion of the local submatrix (possibly different for 2566 each block row) or PETSC_NULL. 2567 2568 If the *_nnz parameter is given then the *_nz parameter is ignored 2569 2570 Options Database Keys: 2571 + -mat_block_size - size of the blocks to use 2572 - -mat_use_hash_table <fact> 2573 2574 Notes: 2575 If PETSC_DECIDE or PETSC_DETERMINE is used for a particular argument on one processor 2576 than it must be used on all processors that share the object for that argument. 2577 2578 Storage Information: 2579 For a square global matrix we define each processor's diagonal portion 2580 to be its local rows and the corresponding columns (a square submatrix); 2581 each processor's off-diagonal portion encompasses the remainder of the 2582 local matrix (a rectangular submatrix). 2583 2584 The user can specify preallocated storage for the diagonal part of 2585 the local submatrix with either d_nz or d_nnz (not both). Set 2586 d_nz=PETSC_DEFAULT and d_nnz=PETSC_NULL for PETSc to control dynamic 2587 memory allocation. Likewise, specify preallocated storage for the 2588 off-diagonal part of the local submatrix with o_nz or o_nnz (not both). 2589 2590 Consider a processor that owns rows 3, 4 and 5 of a parallel matrix. In 2591 the figure below we depict these three local rows and all columns (0-11). 2592 2593 .vb 2594 0 1 2 3 4 5 6 7 8 9 10 11 2595 ------------------- 2596 row 3 | o o o d d d o o o o o o 2597 row 4 | o o o d d d o o o o o o 2598 row 5 | o o o d d d o o o o o o 2599 ------------------- 2600 .ve 2601 2602 Thus, any entries in the d locations are stored in the d (diagonal) 2603 submatrix, and any entries in the o locations are stored in the 2604 o (off-diagonal) submatrix. Note that the d and the o submatrices are 2605 stored simply in the MATSEQBAIJ format for compressed row storage. 2606 2607 Now d_nz should indicate the number of block nonzeros per row in the d matrix, 2608 and o_nz should indicate the number of block nonzeros per row in the o matrix. 2609 In general, for PDE problems in which most nonzeros are near the diagonal, 2610 one expects d_nz >> o_nz. For large problems you MUST preallocate memory 2611 or you will get TERRIBLE performance; see the users' manual chapter on 2612 matrices. 2613 2614 You can call MatGetInfo() to get information on how effective the preallocation was; 2615 for example the fields mallocs,nz_allocated,nz_used,nz_unneeded; 2616 You can also run with the option -info and look for messages with the string 2617 malloc in them to see if additional memory allocation was needed. 2618 2619 Level: intermediate 2620 2621 .keywords: matrix, block, aij, compressed row, sparse, parallel 2622 2623 .seealso: MatCreate(), MatCreateSeqBAIJ(), MatSetValues(), MatCreateMPIBAIJ(), MatMPIBAIJSetPreallocationCSR() 2624 @*/ 2625 PetscErrorCode PETSCMAT_DLLEXPORT MatMPIBAIJSetPreallocation(Mat B,PetscInt bs,PetscInt d_nz,const PetscInt d_nnz[],PetscInt o_nz,const PetscInt o_nnz[]) 2626 { 2627 PetscErrorCode ierr,(*f)(Mat,PetscInt,PetscInt,const PetscInt[],PetscInt,const PetscInt[]); 2628 2629 PetscFunctionBegin; 2630 ierr = PetscObjectQueryFunction((PetscObject)B,"MatMPIBAIJSetPreallocation_C",(void (**)(void))&f);CHKERRQ(ierr); 2631 if (f) { 2632 ierr = (*f)(B,bs,d_nz,d_nnz,o_nz,o_nnz);CHKERRQ(ierr); 2633 } 2634 PetscFunctionReturn(0); 2635 } 2636 2637 #undef __FUNCT__ 2638 #define __FUNCT__ "MatCreateMPIBAIJ" 2639 /*@C 2640 MatCreateMPIBAIJ - Creates a sparse parallel matrix in block AIJ format 2641 (block compressed row). For good matrix assembly performance 2642 the user should preallocate the matrix storage by setting the parameters 2643 d_nz (or d_nnz) and o_nz (or o_nnz). By setting these parameters accurately, 2644 performance can be increased by more than a factor of 50. 2645 2646 Collective on MPI_Comm 2647 2648 Input Parameters: 2649 + comm - MPI communicator 2650 . bs - size of blockk 2651 . m - number of local rows (or PETSC_DECIDE to have calculated if M is given) 2652 This value should be the same as the local size used in creating the 2653 y vector for the matrix-vector product y = Ax. 2654 . n - number of local columns (or PETSC_DECIDE to have calculated if N is given) 2655 This value should be the same as the local size used in creating the 2656 x vector for the matrix-vector product y = Ax. 2657 . M - number of global rows (or PETSC_DETERMINE to have calculated if m is given) 2658 . N - number of global columns (or PETSC_DETERMINE to have calculated if n is given) 2659 . d_nz - number of nonzero blocks per block row in diagonal portion of local 2660 submatrix (same for all local rows) 2661 . d_nnz - array containing the number of nonzero blocks in the various block rows 2662 of the in diagonal portion of the local (possibly different for each block 2663 row) or PETSC_NULL. You must leave room for the diagonal entry even if it is zero. 2664 . o_nz - number of nonzero blocks per block row in the off-diagonal portion of local 2665 submatrix (same for all local rows). 2666 - o_nnz - array containing the number of nonzero blocks in the various block rows of the 2667 off-diagonal portion of the local submatrix (possibly different for 2668 each block row) or PETSC_NULL. 2669 2670 Output Parameter: 2671 . A - the matrix 2672 2673 Options Database Keys: 2674 + -mat_block_size - size of the blocks to use 2675 - -mat_use_hash_table <fact> 2676 2677 It is recommended that one use the MatCreate(), MatSetType() and/or MatSetFromOptions(), 2678 MatXXXXSetPreallocation() paradgm instead of this routine directly. 2679 [MatXXXXSetPreallocation() is, for example, MatSeqAIJSetPreallocation] 2680 2681 Notes: 2682 If the *_nnz parameter is given then the *_nz parameter is ignored 2683 2684 A nonzero block is any block that as 1 or more nonzeros in it 2685 2686 The user MUST specify either the local or global matrix dimensions 2687 (possibly both). 2688 2689 If PETSC_DECIDE or PETSC_DETERMINE is used for a particular argument on one processor 2690 than it must be used on all processors that share the object for that argument. 2691 2692 Storage Information: 2693 For a square global matrix we define each processor's diagonal portion 2694 to be its local rows and the corresponding columns (a square submatrix); 2695 each processor's off-diagonal portion encompasses the remainder of the 2696 local matrix (a rectangular submatrix). 2697 2698 The user can specify preallocated storage for the diagonal part of 2699 the local submatrix with either d_nz or d_nnz (not both). Set 2700 d_nz=PETSC_DEFAULT and d_nnz=PETSC_NULL for PETSc to control dynamic 2701 memory allocation. Likewise, specify preallocated storage for the 2702 off-diagonal part of the local submatrix with o_nz or o_nnz (not both). 2703 2704 Consider a processor that owns rows 3, 4 and 5 of a parallel matrix. In 2705 the figure below we depict these three local rows and all columns (0-11). 2706 2707 .vb 2708 0 1 2 3 4 5 6 7 8 9 10 11 2709 ------------------- 2710 row 3 | o o o d d d o o o o o o 2711 row 4 | o o o d d d o o o o o o 2712 row 5 | o o o d d d o o o o o o 2713 ------------------- 2714 .ve 2715 2716 Thus, any entries in the d locations are stored in the d (diagonal) 2717 submatrix, and any entries in the o locations are stored in the 2718 o (off-diagonal) submatrix. Note that the d and the o submatrices are 2719 stored simply in the MATSEQBAIJ format for compressed row storage. 2720 2721 Now d_nz should indicate the number of block nonzeros per row in the d matrix, 2722 and o_nz should indicate the number of block nonzeros per row in the o matrix. 2723 In general, for PDE problems in which most nonzeros are near the diagonal, 2724 one expects d_nz >> o_nz. For large problems you MUST preallocate memory 2725 or you will get TERRIBLE performance; see the users' manual chapter on 2726 matrices. 2727 2728 Level: intermediate 2729 2730 .keywords: matrix, block, aij, compressed row, sparse, parallel 2731 2732 .seealso: MatCreate(), MatCreateSeqBAIJ(), MatSetValues(), MatCreateMPIBAIJ(), MatMPIBAIJSetPreallocation(), MatMPIBAIJSetPreallocationCSR() 2733 @*/ 2734 PetscErrorCode PETSCMAT_DLLEXPORT MatCreateMPIBAIJ(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) 2735 { 2736 PetscErrorCode ierr; 2737 PetscMPIInt size; 2738 2739 PetscFunctionBegin; 2740 ierr = MatCreate(comm,A);CHKERRQ(ierr); 2741 ierr = MatSetSizes(*A,m,n,M,N);CHKERRQ(ierr); 2742 ierr = MPI_Comm_size(comm,&size);CHKERRQ(ierr); 2743 if (size > 1) { 2744 ierr = MatSetType(*A,MATMPIBAIJ);CHKERRQ(ierr); 2745 ierr = MatMPIBAIJSetPreallocation(*A,bs,d_nz,d_nnz,o_nz,o_nnz);CHKERRQ(ierr); 2746 } else { 2747 ierr = MatSetType(*A,MATSEQBAIJ);CHKERRQ(ierr); 2748 ierr = MatSeqBAIJSetPreallocation(*A,bs,d_nz,d_nnz);CHKERRQ(ierr); 2749 } 2750 PetscFunctionReturn(0); 2751 } 2752 2753 #undef __FUNCT__ 2754 #define __FUNCT__ "MatDuplicate_MPIBAIJ" 2755 static PetscErrorCode MatDuplicate_MPIBAIJ(Mat matin,MatDuplicateOption cpvalues,Mat *newmat) 2756 { 2757 Mat mat; 2758 Mat_MPIBAIJ *a,*oldmat = (Mat_MPIBAIJ*)matin->data; 2759 PetscErrorCode ierr; 2760 PetscInt len=0; 2761 2762 PetscFunctionBegin; 2763 *newmat = 0; 2764 ierr = MatCreate(((PetscObject)matin)->comm,&mat);CHKERRQ(ierr); 2765 ierr = MatSetSizes(mat,matin->rmap->n,matin->cmap->n,matin->rmap->N,matin->cmap->N);CHKERRQ(ierr); 2766 ierr = MatSetType(mat,((PetscObject)matin)->type_name);CHKERRQ(ierr); 2767 ierr = PetscMemcpy(mat->ops,matin->ops,sizeof(struct _MatOps));CHKERRQ(ierr); 2768 2769 mat->factor = matin->factor; 2770 mat->preallocated = PETSC_TRUE; 2771 mat->assembled = PETSC_TRUE; 2772 mat->insertmode = NOT_SET_VALUES; 2773 2774 a = (Mat_MPIBAIJ*)mat->data; 2775 mat->rmap->bs = matin->rmap->bs; 2776 a->bs2 = oldmat->bs2; 2777 a->mbs = oldmat->mbs; 2778 a->nbs = oldmat->nbs; 2779 a->Mbs = oldmat->Mbs; 2780 a->Nbs = oldmat->Nbs; 2781 2782 ierr = PetscMapCopy(((PetscObject)matin)->comm,matin->rmap,mat->rmap);CHKERRQ(ierr); 2783 ierr = PetscMapCopy(((PetscObject)matin)->comm,matin->cmap,mat->cmap);CHKERRQ(ierr); 2784 2785 a->size = oldmat->size; 2786 a->rank = oldmat->rank; 2787 a->donotstash = oldmat->donotstash; 2788 a->roworiented = oldmat->roworiented; 2789 a->rowindices = 0; 2790 a->rowvalues = 0; 2791 a->getrowactive = PETSC_FALSE; 2792 a->barray = 0; 2793 a->rstartbs = oldmat->rstartbs; 2794 a->rendbs = oldmat->rendbs; 2795 a->cstartbs = oldmat->cstartbs; 2796 a->cendbs = oldmat->cendbs; 2797 2798 /* hash table stuff */ 2799 a->ht = 0; 2800 a->hd = 0; 2801 a->ht_size = 0; 2802 a->ht_flag = oldmat->ht_flag; 2803 a->ht_fact = oldmat->ht_fact; 2804 a->ht_total_ct = 0; 2805 a->ht_insert_ct = 0; 2806 2807 ierr = PetscMemcpy(a->rangebs,oldmat->rangebs,(a->size+1)*sizeof(PetscInt));CHKERRQ(ierr); 2808 ierr = MatStashCreate_Private(((PetscObject)matin)->comm,1,&mat->stash);CHKERRQ(ierr); 2809 ierr = MatStashCreate_Private(((PetscObject)matin)->comm,matin->rmap->bs,&mat->bstash);CHKERRQ(ierr); 2810 if (oldmat->colmap) { 2811 #if defined (PETSC_USE_CTABLE) 2812 ierr = PetscTableCreateCopy(oldmat->colmap,&a->colmap);CHKERRQ(ierr); 2813 #else 2814 ierr = PetscMalloc((a->Nbs)*sizeof(PetscInt),&a->colmap);CHKERRQ(ierr); 2815 ierr = PetscLogObjectMemory(mat,(a->Nbs)*sizeof(PetscInt));CHKERRQ(ierr); 2816 ierr = PetscMemcpy(a->colmap,oldmat->colmap,(a->Nbs)*sizeof(PetscInt));CHKERRQ(ierr); 2817 #endif 2818 } else a->colmap = 0; 2819 2820 if (oldmat->garray && (len = ((Mat_SeqBAIJ*)(oldmat->B->data))->nbs)) { 2821 ierr = PetscMalloc(len*sizeof(PetscInt),&a->garray);CHKERRQ(ierr); 2822 ierr = PetscLogObjectMemory(mat,len*sizeof(PetscInt));CHKERRQ(ierr); 2823 ierr = PetscMemcpy(a->garray,oldmat->garray,len*sizeof(PetscInt));CHKERRQ(ierr); 2824 } else a->garray = 0; 2825 2826 ierr = VecDuplicate(oldmat->lvec,&a->lvec);CHKERRQ(ierr); 2827 ierr = PetscLogObjectParent(mat,a->lvec);CHKERRQ(ierr); 2828 ierr = VecScatterCopy(oldmat->Mvctx,&a->Mvctx);CHKERRQ(ierr); 2829 ierr = PetscLogObjectParent(mat,a->Mvctx);CHKERRQ(ierr); 2830 2831 ierr = MatDuplicate(oldmat->A,cpvalues,&a->A);CHKERRQ(ierr); 2832 ierr = PetscLogObjectParent(mat,a->A);CHKERRQ(ierr); 2833 ierr = MatDuplicate(oldmat->B,cpvalues,&a->B);CHKERRQ(ierr); 2834 ierr = PetscLogObjectParent(mat,a->B);CHKERRQ(ierr); 2835 ierr = PetscFListDuplicate(((PetscObject)matin)->qlist,&((PetscObject)mat)->qlist);CHKERRQ(ierr); 2836 *newmat = mat; 2837 2838 PetscFunctionReturn(0); 2839 } 2840 2841 #include "petscsys.h" 2842 2843 #undef __FUNCT__ 2844 #define __FUNCT__ "MatLoad_MPIBAIJ" 2845 PetscErrorCode MatLoad_MPIBAIJ(PetscViewer viewer, const MatType type,Mat *newmat) 2846 { 2847 Mat A; 2848 PetscErrorCode ierr; 2849 int fd; 2850 PetscInt i,nz,j,rstart,rend; 2851 PetscScalar *vals,*buf; 2852 MPI_Comm comm = ((PetscObject)viewer)->comm; 2853 MPI_Status status; 2854 PetscMPIInt rank,size,maxnz; 2855 PetscInt header[4],*rowlengths = 0,M,N,m,*rowners,*cols; 2856 PetscInt *locrowlens = PETSC_NULL,*procsnz = PETSC_NULL,*browners = PETSC_NULL; 2857 PetscInt jj,*mycols,*ibuf,bs=1,Mbs,mbs,extra_rows,mmax; 2858 PetscMPIInt tag = ((PetscObject)viewer)->tag; 2859 PetscInt *dlens = PETSC_NULL,*odlens = PETSC_NULL,*mask = PETSC_NULL,*masked1 = PETSC_NULL,*masked2 = PETSC_NULL,rowcount,odcount; 2860 PetscInt dcount,kmax,k,nzcount,tmp,mend; 2861 2862 PetscFunctionBegin; 2863 ierr = PetscOptionsBegin(comm,PETSC_NULL,"Options for loading MPIBAIJ matrix 2","Mat");CHKERRQ(ierr); 2864 ierr = PetscOptionsInt("-matload_block_size","Set the blocksize used to store the matrix","MatLoad",bs,&bs,PETSC_NULL);CHKERRQ(ierr); 2865 ierr = PetscOptionsEnd();CHKERRQ(ierr); 2866 2867 ierr = MPI_Comm_size(comm,&size);CHKERRQ(ierr); 2868 ierr = MPI_Comm_rank(comm,&rank);CHKERRQ(ierr); 2869 if (!rank) { 2870 ierr = PetscViewerBinaryGetDescriptor(viewer,&fd);CHKERRQ(ierr); 2871 ierr = PetscBinaryRead(fd,(char *)header,4,PETSC_INT);CHKERRQ(ierr); 2872 if (header[0] != MAT_FILE_COOKIE) SETERRQ(PETSC_ERR_FILE_UNEXPECTED,"not matrix object"); 2873 } 2874 2875 ierr = MPI_Bcast(header+1,3,MPIU_INT,0,comm);CHKERRQ(ierr); 2876 M = header[1]; N = header[2]; 2877 2878 if (M != N) SETERRQ(PETSC_ERR_SUP,"Can only do square matrices"); 2879 2880 /* 2881 This code adds extra rows to make sure the number of rows is 2882 divisible by the blocksize 2883 */ 2884 Mbs = M/bs; 2885 extra_rows = bs - M + bs*Mbs; 2886 if (extra_rows == bs) extra_rows = 0; 2887 else Mbs++; 2888 if (extra_rows && !rank) { 2889 ierr = PetscInfo(viewer,"Padding loaded matrix to match blocksize\n");CHKERRQ(ierr); 2890 } 2891 2892 /* determine ownership of all rows */ 2893 mbs = Mbs/size + ((Mbs % size) > rank); 2894 m = mbs*bs; 2895 ierr = PetscMalloc2(size+1,PetscInt,&rowners,size+1,PetscInt,&browners);CHKERRQ(ierr); 2896 ierr = MPI_Allgather(&mbs,1,MPIU_INT,rowners+1,1,MPIU_INT,comm);CHKERRQ(ierr); 2897 2898 /* process 0 needs enough room for process with most rows */ 2899 if (!rank) { 2900 mmax = rowners[1]; 2901 for (i=2; i<size; i++) { 2902 mmax = PetscMax(mmax,rowners[i]); 2903 } 2904 mmax*=bs; 2905 } else mmax = m; 2906 2907 rowners[0] = 0; 2908 for (i=2; i<=size; i++) rowners[i] += rowners[i-1]; 2909 for (i=0; i<=size; i++) browners[i] = rowners[i]*bs; 2910 rstart = rowners[rank]; 2911 rend = rowners[rank+1]; 2912 2913 /* distribute row lengths to all processors */ 2914 ierr = PetscMalloc((mmax+1)*sizeof(PetscInt),&locrowlens);CHKERRQ(ierr); 2915 if (!rank) { 2916 mend = m; 2917 if (size == 1) mend = mend - extra_rows; 2918 ierr = PetscBinaryRead(fd,locrowlens,mend,PETSC_INT);CHKERRQ(ierr); 2919 for (j=mend; j<m; j++) locrowlens[j] = 1; 2920 ierr = PetscMalloc(m*sizeof(PetscInt),&rowlengths);CHKERRQ(ierr); 2921 ierr = PetscMalloc(size*sizeof(PetscInt),&procsnz);CHKERRQ(ierr); 2922 ierr = PetscMemzero(procsnz,size*sizeof(PetscInt));CHKERRQ(ierr); 2923 for (j=0; j<m; j++) { 2924 procsnz[0] += locrowlens[j]; 2925 } 2926 for (i=1; i<size; i++) { 2927 mend = browners[i+1] - browners[i]; 2928 if (i == size-1) mend = mend - extra_rows; 2929 ierr = PetscBinaryRead(fd,rowlengths,mend,PETSC_INT);CHKERRQ(ierr); 2930 for (j=mend; j<browners[i+1] - browners[i]; j++) rowlengths[j] = 1; 2931 /* calculate the number of nonzeros on each processor */ 2932 for (j=0; j<browners[i+1]-browners[i]; j++) { 2933 procsnz[i] += rowlengths[j]; 2934 } 2935 ierr = MPI_Send(rowlengths,browners[i+1]-browners[i],MPIU_INT,i,tag,comm);CHKERRQ(ierr); 2936 } 2937 ierr = PetscFree(rowlengths);CHKERRQ(ierr); 2938 } else { 2939 ierr = MPI_Recv(locrowlens,m,MPIU_INT,0,tag,comm,&status);CHKERRQ(ierr); 2940 } 2941 2942 if (!rank) { 2943 /* determine max buffer needed and allocate it */ 2944 maxnz = procsnz[0]; 2945 for (i=1; i<size; i++) { 2946 maxnz = PetscMax(maxnz,procsnz[i]); 2947 } 2948 ierr = PetscMalloc(maxnz*sizeof(PetscInt),&cols);CHKERRQ(ierr); 2949 2950 /* read in my part of the matrix column indices */ 2951 nz = procsnz[0]; 2952 ierr = PetscMalloc((nz+1)*sizeof(PetscInt),&ibuf);CHKERRQ(ierr); 2953 mycols = ibuf; 2954 if (size == 1) nz -= extra_rows; 2955 ierr = PetscBinaryRead(fd,mycols,nz,PETSC_INT);CHKERRQ(ierr); 2956 if (size == 1) for (i=0; i< extra_rows; i++) { mycols[nz+i] = M+i; } 2957 2958 /* read in every ones (except the last) and ship off */ 2959 for (i=1; i<size-1; i++) { 2960 nz = procsnz[i]; 2961 ierr = PetscBinaryRead(fd,cols,nz,PETSC_INT);CHKERRQ(ierr); 2962 ierr = MPI_Send(cols,nz,MPIU_INT,i,tag,comm);CHKERRQ(ierr); 2963 } 2964 /* read in the stuff for the last proc */ 2965 if (size != 1) { 2966 nz = procsnz[size-1] - extra_rows; /* the extra rows are not on the disk */ 2967 ierr = PetscBinaryRead(fd,cols,nz,PETSC_INT);CHKERRQ(ierr); 2968 for (i=0; i<extra_rows; i++) cols[nz+i] = M+i; 2969 ierr = MPI_Send(cols,nz+extra_rows,MPIU_INT,size-1,tag,comm);CHKERRQ(ierr); 2970 } 2971 ierr = PetscFree(cols);CHKERRQ(ierr); 2972 } else { 2973 /* determine buffer space needed for message */ 2974 nz = 0; 2975 for (i=0; i<m; i++) { 2976 nz += locrowlens[i]; 2977 } 2978 ierr = PetscMalloc((nz+1)*sizeof(PetscInt),&ibuf);CHKERRQ(ierr); 2979 mycols = ibuf; 2980 /* receive message of column indices*/ 2981 ierr = MPI_Recv(mycols,nz,MPIU_INT,0,tag,comm,&status);CHKERRQ(ierr); 2982 ierr = MPI_Get_count(&status,MPIU_INT,&maxnz);CHKERRQ(ierr); 2983 if (maxnz != nz) SETERRQ(PETSC_ERR_FILE_UNEXPECTED,"something is wrong with file"); 2984 } 2985 2986 /* loop over local rows, determining number of off diagonal entries */ 2987 ierr = PetscMalloc2(rend-rstart,PetscInt,&dlens,rend-rstart,PetscInt,&odlens);CHKERRQ(ierr); 2988 ierr = PetscMalloc3(Mbs,PetscInt,&mask,Mbs,PetscInt,&masked1,Mbs,PetscInt,&masked2);CHKERRQ(ierr); 2989 ierr = PetscMemzero(mask,Mbs*sizeof(PetscInt));CHKERRQ(ierr); 2990 ierr = PetscMemzero(masked1,Mbs*sizeof(PetscInt));CHKERRQ(ierr); 2991 ierr = PetscMemzero(masked2,Mbs*sizeof(PetscInt));CHKERRQ(ierr); 2992 rowcount = 0; nzcount = 0; 2993 for (i=0; i<mbs; i++) { 2994 dcount = 0; 2995 odcount = 0; 2996 for (j=0; j<bs; j++) { 2997 kmax = locrowlens[rowcount]; 2998 for (k=0; k<kmax; k++) { 2999 tmp = mycols[nzcount++]/bs; 3000 if (!mask[tmp]) { 3001 mask[tmp] = 1; 3002 if (tmp < rstart || tmp >= rend) masked2[odcount++] = tmp; 3003 else masked1[dcount++] = tmp; 3004 } 3005 } 3006 rowcount++; 3007 } 3008 3009 dlens[i] = dcount; 3010 odlens[i] = odcount; 3011 3012 /* zero out the mask elements we set */ 3013 for (j=0; j<dcount; j++) mask[masked1[j]] = 0; 3014 for (j=0; j<odcount; j++) mask[masked2[j]] = 0; 3015 } 3016 3017 /* create our matrix */ 3018 ierr = MatCreate(comm,&A);CHKERRQ(ierr); 3019 ierr = MatSetSizes(A,m,m,M+extra_rows,N+extra_rows);CHKERRQ(ierr); 3020 ierr = MatSetType(A,type);CHKERRQ(ierr) 3021 ierr = MatMPIBAIJSetPreallocation(A,bs,0,dlens,0,odlens);CHKERRQ(ierr); 3022 3023 if (!rank) { 3024 ierr = PetscMalloc((maxnz+1)*sizeof(PetscScalar),&buf);CHKERRQ(ierr); 3025 /* read in my part of the matrix numerical values */ 3026 nz = procsnz[0]; 3027 vals = buf; 3028 mycols = ibuf; 3029 if (size == 1) nz -= extra_rows; 3030 ierr = PetscBinaryRead(fd,vals,nz,PETSC_SCALAR);CHKERRQ(ierr); 3031 if (size == 1) for (i=0; i< extra_rows; i++) { vals[nz+i] = 1.0; } 3032 3033 /* insert into matrix */ 3034 jj = rstart*bs; 3035 for (i=0; i<m; i++) { 3036 ierr = MatSetValues_MPIBAIJ(A,1,&jj,locrowlens[i],mycols,vals,INSERT_VALUES);CHKERRQ(ierr); 3037 mycols += locrowlens[i]; 3038 vals += locrowlens[i]; 3039 jj++; 3040 } 3041 /* read in other processors (except the last one) and ship out */ 3042 for (i=1; i<size-1; i++) { 3043 nz = procsnz[i]; 3044 vals = buf; 3045 ierr = PetscBinaryRead(fd,vals,nz,PETSC_SCALAR);CHKERRQ(ierr); 3046 ierr = MPI_Send(vals,nz,MPIU_SCALAR,i,((PetscObject)A)->tag,comm);CHKERRQ(ierr); 3047 } 3048 /* the last proc */ 3049 if (size != 1){ 3050 nz = procsnz[i] - extra_rows; 3051 vals = buf; 3052 ierr = PetscBinaryRead(fd,vals,nz,PETSC_SCALAR);CHKERRQ(ierr); 3053 for (i=0; i<extra_rows; i++) vals[nz+i] = 1.0; 3054 ierr = MPI_Send(vals,nz+extra_rows,MPIU_SCALAR,size-1,((PetscObject)A)->tag,comm);CHKERRQ(ierr); 3055 } 3056 ierr = PetscFree(procsnz);CHKERRQ(ierr); 3057 } else { 3058 /* receive numeric values */ 3059 ierr = PetscMalloc((nz+1)*sizeof(PetscScalar),&buf);CHKERRQ(ierr); 3060 3061 /* receive message of values*/ 3062 vals = buf; 3063 mycols = ibuf; 3064 ierr = MPI_Recv(vals,nz,MPIU_SCALAR,0,((PetscObject)A)->tag,comm,&status);CHKERRQ(ierr); 3065 ierr = MPI_Get_count(&status,MPIU_SCALAR,&maxnz);CHKERRQ(ierr); 3066 if (maxnz != nz) SETERRQ(PETSC_ERR_FILE_UNEXPECTED,"something is wrong with file"); 3067 3068 /* insert into matrix */ 3069 jj = rstart*bs; 3070 for (i=0; i<m; i++) { 3071 ierr = MatSetValues_MPIBAIJ(A,1,&jj,locrowlens[i],mycols,vals,INSERT_VALUES);CHKERRQ(ierr); 3072 mycols += locrowlens[i]; 3073 vals += locrowlens[i]; 3074 jj++; 3075 } 3076 } 3077 ierr = PetscFree(locrowlens);CHKERRQ(ierr); 3078 ierr = PetscFree(buf);CHKERRQ(ierr); 3079 ierr = PetscFree(ibuf);CHKERRQ(ierr); 3080 ierr = PetscFree2(rowners,browners);CHKERRQ(ierr); 3081 ierr = PetscFree2(dlens,odlens);CHKERRQ(ierr); 3082 ierr = PetscFree3(mask,masked1,masked2);CHKERRQ(ierr); 3083 ierr = MatAssemblyBegin(A,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 3084 ierr = MatAssemblyEnd(A,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 3085 3086 *newmat = A; 3087 PetscFunctionReturn(0); 3088 } 3089 3090 #undef __FUNCT__ 3091 #define __FUNCT__ "MatMPIBAIJSetHashTableFactor" 3092 /*@ 3093 MatMPIBAIJSetHashTableFactor - Sets the factor required to compute the size of the HashTable. 3094 3095 Input Parameters: 3096 . mat - the matrix 3097 . fact - factor 3098 3099 Collective on Mat 3100 3101 Level: advanced 3102 3103 Notes: 3104 This can also be set by the command line option: -mat_use_hash_table <fact> 3105 3106 .keywords: matrix, hashtable, factor, HT 3107 3108 .seealso: MatSetOption() 3109 @*/ 3110 PetscErrorCode PETSCMAT_DLLEXPORT MatMPIBAIJSetHashTableFactor(Mat mat,PetscReal fact) 3111 { 3112 PetscErrorCode ierr,(*f)(Mat,PetscReal); 3113 3114 PetscFunctionBegin; 3115 ierr = PetscObjectQueryFunction((PetscObject)mat,"MatSetHashTableFactor_C",(void (**)(void))&f);CHKERRQ(ierr); 3116 if (f) { 3117 ierr = (*f)(mat,fact);CHKERRQ(ierr); 3118 } 3119 PetscFunctionReturn(0); 3120 } 3121 3122 EXTERN_C_BEGIN 3123 #undef __FUNCT__ 3124 #define __FUNCT__ "MatSetHashTableFactor_MPIBAIJ" 3125 PetscErrorCode PETSCMAT_DLLEXPORT MatSetHashTableFactor_MPIBAIJ(Mat mat,PetscReal fact) 3126 { 3127 Mat_MPIBAIJ *baij; 3128 3129 PetscFunctionBegin; 3130 baij = (Mat_MPIBAIJ*)mat->data; 3131 baij->ht_fact = fact; 3132 PetscFunctionReturn(0); 3133 } 3134 EXTERN_C_END 3135 3136 #undef __FUNCT__ 3137 #define __FUNCT__ "MatMPIBAIJGetSeqBAIJ" 3138 PetscErrorCode PETSCMAT_DLLEXPORT MatMPIBAIJGetSeqBAIJ(Mat A,Mat *Ad,Mat *Ao,PetscInt *colmap[]) 3139 { 3140 Mat_MPIBAIJ *a = (Mat_MPIBAIJ *)A->data; 3141 PetscFunctionBegin; 3142 *Ad = a->A; 3143 *Ao = a->B; 3144 *colmap = a->garray; 3145 PetscFunctionReturn(0); 3146 } 3147 3148 /* 3149 Special version for direct calls from Fortran (to eliminate two function call overheads 3150 */ 3151 #if defined(PETSC_HAVE_FORTRAN_CAPS) 3152 #define matmpibaijsetvaluesblocked_ MATMPIBAIJSETVALUESBLOCKED 3153 #elif !defined(PETSC_HAVE_FORTRAN_UNDERSCORE) 3154 #define matmpibaijsetvaluesblocked_ matmpibaijsetvaluesblocked 3155 #endif 3156 3157 #undef __FUNCT__ 3158 #define __FUNCT__ "matmpibiajsetvaluesblocked" 3159 /*@C 3160 MatMPIBAIJSetValuesBlocked - Direct Fortran call to replace call to MatSetValuesBlocked() 3161 3162 Collective on Mat 3163 3164 Input Parameters: 3165 + mat - the matrix 3166 . min - number of input rows 3167 . im - input rows 3168 . nin - number of input columns 3169 . in - input columns 3170 . v - numerical values input 3171 - addvin - INSERT_VALUES or ADD_VALUES 3172 3173 Notes: This has a complete copy of MatSetValuesBlocked_MPIBAIJ() which is terrible code un-reuse. 3174 3175 Level: advanced 3176 3177 .seealso: MatSetValuesBlocked() 3178 @*/ 3179 PetscErrorCode matmpibaijsetvaluesblocked_(Mat *matin,PetscInt *min,const PetscInt im[],PetscInt *nin,const PetscInt in[],const MatScalar v[],InsertMode *addvin) 3180 { 3181 /* convert input arguments to C version */ 3182 Mat mat = *matin; 3183 PetscInt m = *min, n = *nin; 3184 InsertMode addv = *addvin; 3185 3186 Mat_MPIBAIJ *baij = (Mat_MPIBAIJ*)mat->data; 3187 const MatScalar *value; 3188 MatScalar *barray=baij->barray; 3189 PetscTruth roworiented = baij->roworiented; 3190 PetscErrorCode ierr; 3191 PetscInt i,j,ii,jj,row,col,rstart=baij->rstartbs; 3192 PetscInt rend=baij->rendbs,cstart=baij->cstartbs,stepval; 3193 PetscInt cend=baij->cendbs,bs=mat->rmap->bs,bs2=baij->bs2; 3194 3195 PetscFunctionBegin; 3196 /* tasks normally handled by MatSetValuesBlocked() */ 3197 if (mat->insertmode == NOT_SET_VALUES) { 3198 mat->insertmode = addv; 3199 } 3200 #if defined(PETSC_USE_DEBUG) 3201 else if (mat->insertmode != addv) { 3202 SETERRQ(PETSC_ERR_ARG_WRONGSTATE,"Cannot mix add values and insert values"); 3203 } 3204 if (mat->factor) SETERRQ(PETSC_ERR_ARG_WRONGSTATE,"Not for factored matrix"); 3205 #endif 3206 if (mat->assembled) { 3207 mat->was_assembled = PETSC_TRUE; 3208 mat->assembled = PETSC_FALSE; 3209 } 3210 ierr = PetscLogEventBegin(MAT_SetValues,mat,0,0,0);CHKERRQ(ierr); 3211 3212 3213 if(!barray) { 3214 ierr = PetscMalloc(bs2*sizeof(MatScalar),&barray);CHKERRQ(ierr); 3215 baij->barray = barray; 3216 } 3217 3218 if (roworiented) { 3219 stepval = (n-1)*bs; 3220 } else { 3221 stepval = (m-1)*bs; 3222 } 3223 for (i=0; i<m; i++) { 3224 if (im[i] < 0) continue; 3225 #if defined(PETSC_USE_DEBUG) 3226 if (im[i] >= baij->Mbs) SETERRQ2(PETSC_ERR_ARG_OUTOFRANGE,"Row too large, row %D max %D",im[i],baij->Mbs-1); 3227 #endif 3228 if (im[i] >= rstart && im[i] < rend) { 3229 row = im[i] - rstart; 3230 for (j=0; j<n; j++) { 3231 /* If NumCol = 1 then a copy is not required */ 3232 if ((roworiented) && (n == 1)) { 3233 barray = (MatScalar*)v + i*bs2; 3234 } else if((!roworiented) && (m == 1)) { 3235 barray = (MatScalar*)v + j*bs2; 3236 } else { /* Here a copy is required */ 3237 if (roworiented) { 3238 value = v + i*(stepval+bs)*bs + j*bs; 3239 } else { 3240 value = v + j*(stepval+bs)*bs + i*bs; 3241 } 3242 for (ii=0; ii<bs; ii++,value+=stepval) { 3243 for (jj=0; jj<bs; jj++) { 3244 *barray++ = *value++; 3245 } 3246 } 3247 barray -=bs2; 3248 } 3249 3250 if (in[j] >= cstart && in[j] < cend){ 3251 col = in[j] - cstart; 3252 ierr = MatSetValuesBlocked_SeqBAIJ(baij->A,1,&row,1,&col,barray,addv);CHKERRQ(ierr); 3253 } 3254 else if (in[j] < 0) continue; 3255 #if defined(PETSC_USE_DEBUG) 3256 else if (in[j] >= baij->Nbs) {SETERRQ2(PETSC_ERR_ARG_OUTOFRANGE,"Column too large, col %D max %D",in[j],baij->Nbs-1);} 3257 #endif 3258 else { 3259 if (mat->was_assembled) { 3260 if (!baij->colmap) { 3261 ierr = CreateColmap_MPIBAIJ_Private(mat);CHKERRQ(ierr); 3262 } 3263 3264 #if defined(PETSC_USE_DEBUG) 3265 #if defined (PETSC_USE_CTABLE) 3266 { PetscInt data; 3267 ierr = PetscTableFind(baij->colmap,in[j]+1,&data);CHKERRQ(ierr); 3268 if ((data - 1) % bs) SETERRQ(PETSC_ERR_PLIB,"Incorrect colmap"); 3269 } 3270 #else 3271 if ((baij->colmap[in[j]] - 1) % bs) SETERRQ(PETSC_ERR_PLIB,"Incorrect colmap"); 3272 #endif 3273 #endif 3274 #if defined (PETSC_USE_CTABLE) 3275 ierr = PetscTableFind(baij->colmap,in[j]+1,&col);CHKERRQ(ierr); 3276 col = (col - 1)/bs; 3277 #else 3278 col = (baij->colmap[in[j]] - 1)/bs; 3279 #endif 3280 if (col < 0 && !((Mat_SeqBAIJ*)(baij->A->data))->nonew) { 3281 ierr = DisAssemble_MPIBAIJ(mat);CHKERRQ(ierr); 3282 col = in[j]; 3283 } 3284 } 3285 else col = in[j]; 3286 ierr = MatSetValuesBlocked_SeqBAIJ(baij->B,1,&row,1,&col,barray,addv);CHKERRQ(ierr); 3287 } 3288 } 3289 } else { 3290 if (!baij->donotstash) { 3291 if (roworiented) { 3292 ierr = MatStashValuesRowBlocked_Private(&mat->bstash,im[i],n,in,v,m,n,i);CHKERRQ(ierr); 3293 } else { 3294 ierr = MatStashValuesColBlocked_Private(&mat->bstash,im[i],n,in,v,m,n,i);CHKERRQ(ierr); 3295 } 3296 } 3297 } 3298 } 3299 3300 /* task normally handled by MatSetValuesBlocked() */ 3301 ierr = PetscLogEventEnd(MAT_SetValues,mat,0,0,0);CHKERRQ(ierr); 3302 PetscFunctionReturn(0); 3303 } 3304