1 2 #include <../src/mat/impls/baij/mpi/mpibaij.h> /*I "petscmat.h" I*/ 3 #include <petscblaslapack.h> 4 #include <petscsf.h> 5 6 extern PetscErrorCode MatSetUpMultiply_MPIBAIJ(Mat); 7 extern PetscErrorCode MatDisAssemble_MPIBAIJ(Mat); 8 extern PetscErrorCode MatGetValues_SeqBAIJ(Mat,PetscInt,const PetscInt[],PetscInt,const PetscInt [],PetscScalar []); 9 extern PetscErrorCode MatSetValues_SeqBAIJ(Mat,PetscInt,const PetscInt[],PetscInt,const PetscInt [],const PetscScalar [],InsertMode); 10 extern PetscErrorCode MatSetValuesBlocked_SeqBAIJ(Mat,PetscInt,const PetscInt[],PetscInt,const PetscInt[],const PetscScalar[],InsertMode); 11 extern PetscErrorCode MatGetRow_SeqBAIJ(Mat,PetscInt,PetscInt*,PetscInt*[],PetscScalar*[]); 12 extern PetscErrorCode MatRestoreRow_SeqBAIJ(Mat,PetscInt,PetscInt*,PetscInt*[],PetscScalar*[]); 13 extern PetscErrorCode MatZeroRows_SeqBAIJ(Mat,PetscInt,const PetscInt[],PetscScalar,Vec,Vec); 14 15 #undef __FUNCT__ 16 #define __FUNCT__ "MatGetRowMaxAbs_MPIBAIJ" 17 PetscErrorCode MatGetRowMaxAbs_MPIBAIJ(Mat A,Vec v,PetscInt idx[]) 18 { 19 Mat_MPIBAIJ *a = (Mat_MPIBAIJ*)A->data; 20 PetscErrorCode ierr; 21 PetscInt i,*idxb = 0; 22 PetscScalar *va,*vb; 23 Vec vtmp; 24 25 PetscFunctionBegin; 26 ierr = MatGetRowMaxAbs(a->A,v,idx);CHKERRQ(ierr); 27 ierr = VecGetArray(v,&va);CHKERRQ(ierr); 28 if (idx) { 29 for (i=0; i<A->rmap->n; i++) { 30 if (PetscAbsScalar(va[i])) idx[i] += A->cmap->rstart; 31 } 32 } 33 34 ierr = VecCreateSeq(PETSC_COMM_SELF,A->rmap->n,&vtmp);CHKERRQ(ierr); 35 if (idx) {ierr = PetscMalloc1(A->rmap->n,&idxb);CHKERRQ(ierr);} 36 ierr = MatGetRowMaxAbs(a->B,vtmp,idxb);CHKERRQ(ierr); 37 ierr = VecGetArray(vtmp,&vb);CHKERRQ(ierr); 38 39 for (i=0; i<A->rmap->n; i++) { 40 if (PetscAbsScalar(va[i]) < PetscAbsScalar(vb[i])) { 41 va[i] = vb[i]; 42 if (idx) idx[i] = A->cmap->bs*a->garray[idxb[i]/A->cmap->bs] + (idxb[i] % A->cmap->bs); 43 } 44 } 45 46 ierr = VecRestoreArray(v,&va);CHKERRQ(ierr); 47 ierr = VecRestoreArray(vtmp,&vb);CHKERRQ(ierr); 48 ierr = PetscFree(idxb);CHKERRQ(ierr); 49 ierr = VecDestroy(&vtmp);CHKERRQ(ierr); 50 PetscFunctionReturn(0); 51 } 52 53 #undef __FUNCT__ 54 #define __FUNCT__ "MatStoreValues_MPIBAIJ" 55 PetscErrorCode MatStoreValues_MPIBAIJ(Mat mat) 56 { 57 Mat_MPIBAIJ *aij = (Mat_MPIBAIJ*)mat->data; 58 PetscErrorCode ierr; 59 60 PetscFunctionBegin; 61 ierr = MatStoreValues(aij->A);CHKERRQ(ierr); 62 ierr = MatStoreValues(aij->B);CHKERRQ(ierr); 63 PetscFunctionReturn(0); 64 } 65 66 #undef __FUNCT__ 67 #define __FUNCT__ "MatRetrieveValues_MPIBAIJ" 68 PetscErrorCode MatRetrieveValues_MPIBAIJ(Mat mat) 69 { 70 Mat_MPIBAIJ *aij = (Mat_MPIBAIJ*)mat->data; 71 PetscErrorCode ierr; 72 73 PetscFunctionBegin; 74 ierr = MatRetrieveValues(aij->A);CHKERRQ(ierr); 75 ierr = MatRetrieveValues(aij->B);CHKERRQ(ierr); 76 PetscFunctionReturn(0); 77 } 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 scalable way since the 83 length of colmap equals the global matrix length. 84 */ 85 #undef __FUNCT__ 86 #define __FUNCT__ "MatCreateColmap_MPIBAIJ_Private" 87 PetscErrorCode MatCreateColmap_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->Nbs+1,&baij->colmap);CHKERRQ(ierr); 97 for (i=0; i<nbs; i++) { 98 ierr = PetscTableAdd(baij->colmap,baij->garray[i]+1,i*bs+1,INSERT_VALUES);CHKERRQ(ierr); 99 } 100 #else 101 ierr = PetscMalloc1((baij->Nbs+1),&baij->colmap);CHKERRQ(ierr); 102 ierr = PetscLogObjectMemory((PetscObject)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 MatSetValues_SeqBAIJ_A_Private(row,col,value,addv) \ 110 { \ 111 \ 112 brow = row/bs; \ 113 rp = aj + ai[brow]; ap = aa + bs2*ai[brow]; \ 114 rmax = aimax[brow]; nrow = ailen[brow]; \ 115 bcol = col/bs; \ 116 ridx = row % bs; cidx = col % bs; \ 117 low = 0; high = nrow; \ 118 while (high-low > 3) { \ 119 t = (low+high)/2; \ 120 if (rp[t] > bcol) high = t; \ 121 else low = t; \ 122 } \ 123 for (_i=low; _i<high; _i++) { \ 124 if (rp[_i] > bcol) break; \ 125 if (rp[_i] == bcol) { \ 126 bap = ap + bs2*_i + bs*cidx + ridx; \ 127 if (addv == ADD_VALUES) *bap += value; \ 128 else *bap = value; \ 129 goto a_noinsert; \ 130 } \ 131 } \ 132 if (a->nonew == 1) goto a_noinsert; \ 133 if (a->nonew == -1) SETERRQ2(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"Inserting a new nonzero (%D, %D) into matrix", row, col); \ 134 MatSeqXAIJReallocateAIJ(A,a->mbs,bs2,nrow,brow,bcol,rmax,aa,ai,aj,rp,ap,aimax,a->nonew,MatScalar); \ 135 N = nrow++ - 1; \ 136 /* shift up all the later entries in this row */ \ 137 for (ii=N; ii>=_i; ii--) { \ 138 rp[ii+1] = rp[ii]; \ 139 ierr = PetscMemcpy(ap+bs2*(ii+1),ap+bs2*(ii),bs2*sizeof(MatScalar));CHKERRQ(ierr); \ 140 } \ 141 if (N>=_i) { ierr = PetscMemzero(ap+bs2*_i,bs2*sizeof(MatScalar));CHKERRQ(ierr); } \ 142 rp[_i] = bcol; \ 143 ap[bs2*_i + bs*cidx + ridx] = value; \ 144 a_noinsert:; \ 145 ailen[brow] = nrow; \ 146 } 147 148 #define MatSetValues_SeqBAIJ_B_Private(row,col,value,addv) \ 149 { \ 150 brow = row/bs; \ 151 rp = bj + bi[brow]; ap = ba + bs2*bi[brow]; \ 152 rmax = bimax[brow]; nrow = bilen[brow]; \ 153 bcol = col/bs; \ 154 ridx = row % bs; cidx = col % bs; \ 155 low = 0; high = nrow; \ 156 while (high-low > 3) { \ 157 t = (low+high)/2; \ 158 if (rp[t] > bcol) high = t; \ 159 else low = t; \ 160 } \ 161 for (_i=low; _i<high; _i++) { \ 162 if (rp[_i] > bcol) break; \ 163 if (rp[_i] == bcol) { \ 164 bap = ap + bs2*_i + bs*cidx + ridx; \ 165 if (addv == ADD_VALUES) *bap += value; \ 166 else *bap = value; \ 167 goto b_noinsert; \ 168 } \ 169 } \ 170 if (b->nonew == 1) goto b_noinsert; \ 171 if (b->nonew == -1) SETERRQ2(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"Inserting a new nonzero (%D, %D) into matrix", row, col); \ 172 MatSeqXAIJReallocateAIJ(B,b->mbs,bs2,nrow,brow,bcol,rmax,ba,bi,bj,rp,ap,bimax,b->nonew,MatScalar); \ 173 N = nrow++ - 1; \ 174 /* shift up all the later entries in this row */ \ 175 for (ii=N; ii>=_i; ii--) { \ 176 rp[ii+1] = rp[ii]; \ 177 ierr = PetscMemcpy(ap+bs2*(ii+1),ap+bs2*(ii),bs2*sizeof(MatScalar));CHKERRQ(ierr); \ 178 } \ 179 if (N>=_i) { ierr = PetscMemzero(ap+bs2*_i,bs2*sizeof(MatScalar));CHKERRQ(ierr);} \ 180 rp[_i] = bcol; \ 181 ap[bs2*_i + bs*cidx + ridx] = value; \ 182 b_noinsert:; \ 183 bilen[brow] = nrow; \ 184 } 185 186 #undef __FUNCT__ 187 #define __FUNCT__ "MatSetValues_MPIBAIJ" 188 PetscErrorCode MatSetValues_MPIBAIJ(Mat mat,PetscInt m,const PetscInt im[],PetscInt n,const PetscInt in[],const PetscScalar v[],InsertMode addv) 189 { 190 Mat_MPIBAIJ *baij = (Mat_MPIBAIJ*)mat->data; 191 MatScalar value; 192 PetscBool roworiented = baij->roworiented; 193 PetscErrorCode ierr; 194 PetscInt i,j,row,col; 195 PetscInt rstart_orig=mat->rmap->rstart; 196 PetscInt rend_orig =mat->rmap->rend,cstart_orig=mat->cmap->rstart; 197 PetscInt cend_orig =mat->cmap->rend,bs=mat->rmap->bs; 198 199 /* Some Variables required in the macro */ 200 Mat A = baij->A; 201 Mat_SeqBAIJ *a = (Mat_SeqBAIJ*)(A)->data; 202 PetscInt *aimax=a->imax,*ai=a->i,*ailen=a->ilen,*aj=a->j; 203 MatScalar *aa =a->a; 204 205 Mat B = baij->B; 206 Mat_SeqBAIJ *b = (Mat_SeqBAIJ*)(B)->data; 207 PetscInt *bimax=b->imax,*bi=b->i,*bilen=b->ilen,*bj=b->j; 208 MatScalar *ba =b->a; 209 210 PetscInt *rp,ii,nrow,_i,rmax,N,brow,bcol; 211 PetscInt low,high,t,ridx,cidx,bs2=a->bs2; 212 MatScalar *ap,*bap; 213 214 PetscFunctionBegin; 215 for (i=0; i<m; i++) { 216 if (im[i] < 0) continue; 217 #if defined(PETSC_USE_DEBUG) 218 if (im[i] >= mat->rmap->N) SETERRQ2(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"Row too large: row %D max %D",im[i],mat->rmap->N-1); 219 #endif 220 if (im[i] >= rstart_orig && im[i] < rend_orig) { 221 row = im[i] - rstart_orig; 222 for (j=0; j<n; j++) { 223 if (in[j] >= cstart_orig && in[j] < cend_orig) { 224 col = in[j] - cstart_orig; 225 if (roworiented) value = v[i*n+j]; 226 else value = v[i+j*m]; 227 MatSetValues_SeqBAIJ_A_Private(row,col,value,addv); 228 /* ierr = MatSetValues_SeqBAIJ(baij->A,1,&row,1,&col,&value,addv);CHKERRQ(ierr); */ 229 } else if (in[j] < 0) continue; 230 #if defined(PETSC_USE_DEBUG) 231 else if (in[j] >= mat->cmap->N) SETERRQ2(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"Column too large: col %D max %D",in[j],mat->cmap->N-1); 232 #endif 233 else { 234 if (mat->was_assembled) { 235 if (!baij->colmap) { 236 ierr = MatCreateColmap_MPIBAIJ_Private(mat);CHKERRQ(ierr); 237 } 238 #if defined(PETSC_USE_CTABLE) 239 ierr = PetscTableFind(baij->colmap,in[j]/bs + 1,&col);CHKERRQ(ierr); 240 col = col - 1; 241 #else 242 col = baij->colmap[in[j]/bs] - 1; 243 #endif 244 if (col < 0 && !((Mat_SeqBAIJ*)(baij->B->data))->nonew) { 245 ierr = MatDisAssemble_MPIBAIJ(mat);CHKERRQ(ierr); 246 col = in[j]; 247 /* Reinitialize the variables required by MatSetValues_SeqBAIJ_B_Private() */ 248 B = baij->B; 249 b = (Mat_SeqBAIJ*)(B)->data; 250 bimax=b->imax;bi=b->i;bilen=b->ilen;bj=b->j; 251 ba =b->a; 252 } else if (col < 0) SETERRQ2(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"Inserting a new nonzero (%D, %D) into matrix", im[i], in[j]); 253 else col += in[j]%bs; 254 } else col = in[j]; 255 if (roworiented) value = v[i*n+j]; 256 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 (mat->nooffprocentries) SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_ARG_WRONG,"Setting off process row %D even though MatSetOption(,MAT_NO_OFF_PROC_ENTRIES,PETSC_TRUE) was set",im[i]); 263 if (!baij->donotstash) { 264 mat->assembled = PETSC_FALSE; 265 if (roworiented) { 266 ierr = MatStashValuesRow_Private(&mat->stash,im[i],n,in,v+i*n,PETSC_FALSE);CHKERRQ(ierr); 267 } else { 268 ierr = MatStashValuesCol_Private(&mat->stash,im[i],n,in,v+i,m,PETSC_FALSE);CHKERRQ(ierr); 269 } 270 } 271 } 272 } 273 PetscFunctionReturn(0); 274 } 275 276 #undef __FUNCT__ 277 #define __FUNCT__ "MatSetValuesBlocked_MPIBAIJ" 278 PetscErrorCode MatSetValuesBlocked_MPIBAIJ(Mat mat,PetscInt m,const PetscInt im[],PetscInt n,const PetscInt in[],const PetscScalar v[],InsertMode addv) 279 { 280 Mat_MPIBAIJ *baij = (Mat_MPIBAIJ*)mat->data; 281 const PetscScalar *value; 282 MatScalar *barray = baij->barray; 283 PetscBool roworiented = baij->roworiented; 284 PetscErrorCode ierr; 285 PetscInt i,j,ii,jj,row,col,rstart=baij->rstartbs; 286 PetscInt rend=baij->rendbs,cstart=baij->cstartbs,stepval; 287 PetscInt cend=baij->cendbs,bs=mat->rmap->bs,bs2=baij->bs2; 288 289 PetscFunctionBegin; 290 if (!barray) { 291 ierr = PetscMalloc1(bs2,&barray);CHKERRQ(ierr); 292 baij->barray = barray; 293 } 294 295 if (roworiented) stepval = (n-1)*bs; 296 else 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_COMM_SELF,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) + j)*bs; 314 } else { 315 value = v + (j*(stepval+bs) + i)*bs; 316 } 317 for (ii=0; ii<bs; ii++,value+=bs+stepval) { 318 for (jj=0; jj<bs; jj++) barray[jj] = value[jj]; 319 barray += bs; 320 } 321 barray -= bs2; 322 } 323 324 if (in[j] >= cstart && in[j] < cend) { 325 col = in[j] - cstart; 326 ierr = MatSetValuesBlocked_SeqBAIJ(baij->A,1,&row,1,&col,barray,addv);CHKERRQ(ierr); 327 } else if (in[j] < 0) continue; 328 #if defined(PETSC_USE_DEBUG) 329 else if (in[j] >= baij->Nbs) SETERRQ2(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"Column too large, col %D max %D",in[j],baij->Nbs-1); 330 #endif 331 else { 332 if (mat->was_assembled) { 333 if (!baij->colmap) { 334 ierr = MatCreateColmap_MPIBAIJ_Private(mat);CHKERRQ(ierr); 335 } 336 337 #if defined(PETSC_USE_DEBUG) 338 #if defined(PETSC_USE_CTABLE) 339 { PetscInt data; 340 ierr = PetscTableFind(baij->colmap,in[j]+1,&data);CHKERRQ(ierr); 341 if ((data - 1) % bs) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_PLIB,"Incorrect colmap"); 342 } 343 #else 344 if ((baij->colmap[in[j]] - 1) % bs) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_PLIB,"Incorrect colmap"); 345 #endif 346 #endif 347 #if defined(PETSC_USE_CTABLE) 348 ierr = PetscTableFind(baij->colmap,in[j]+1,&col);CHKERRQ(ierr); 349 col = (col - 1)/bs; 350 #else 351 col = (baij->colmap[in[j]] - 1)/bs; 352 #endif 353 if (col < 0 && !((Mat_SeqBAIJ*)(baij->B->data))->nonew) { 354 ierr = MatDisAssemble_MPIBAIJ(mat);CHKERRQ(ierr); 355 col = in[j]; 356 } else if (col < 0) SETERRQ2(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"Inserting a new nonzero (%D, %D) into matrix", bs*im[i], bs*in[j]); 357 } else col = in[j]; 358 ierr = MatSetValuesBlocked_SeqBAIJ(baij->B,1,&row,1,&col,barray,addv);CHKERRQ(ierr); 359 } 360 } 361 } else { 362 if (mat->nooffprocentries) SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_ARG_WRONG,"Setting off process row %D even though MatSetOption(,MAT_NO_OFF_PROC_ENTRIES,PETSC_TRUE) was set",im[i]); 363 if (!baij->donotstash) { 364 if (roworiented) { 365 ierr = MatStashValuesRowBlocked_Private(&mat->bstash,im[i],n,in,v,m,n,i);CHKERRQ(ierr); 366 } else { 367 ierr = MatStashValuesColBlocked_Private(&mat->bstash,im[i],n,in,v,m,n,i);CHKERRQ(ierr); 368 } 369 } 370 } 371 } 372 PetscFunctionReturn(0); 373 } 374 375 #define HASH_KEY 0.6180339887 376 #define HASH(size,key,tmp) (tmp = (key)*HASH_KEY,(PetscInt)((size)*(tmp-(PetscInt)tmp))) 377 /* #define HASH(size,key) ((PetscInt)((size)*fmod(((key)*HASH_KEY),1))) */ 378 /* #define HASH(size,key,tmp) ((PetscInt)((size)*fmod(((key)*HASH_KEY),1))) */ 379 #undef __FUNCT__ 380 #define __FUNCT__ "MatSetValues_MPIBAIJ_HT" 381 PetscErrorCode MatSetValues_MPIBAIJ_HT(Mat mat,PetscInt m,const PetscInt im[],PetscInt n,const PetscInt in[],const PetscScalar v[],InsertMode addv) 382 { 383 Mat_MPIBAIJ *baij = (Mat_MPIBAIJ*)mat->data; 384 PetscBool roworiented = baij->roworiented; 385 PetscErrorCode ierr; 386 PetscInt i,j,row,col; 387 PetscInt rstart_orig=mat->rmap->rstart; 388 PetscInt rend_orig =mat->rmap->rend,Nbs=baij->Nbs; 389 PetscInt h1,key,size=baij->ht_size,bs=mat->rmap->bs,*HT=baij->ht,idx; 390 PetscReal tmp; 391 MatScalar **HD = baij->hd,value; 392 #if defined(PETSC_USE_DEBUG) 393 PetscInt total_ct=baij->ht_total_ct,insert_ct=baij->ht_insert_ct; 394 #endif 395 396 PetscFunctionBegin; 397 for (i=0; i<m; i++) { 398 #if defined(PETSC_USE_DEBUG) 399 if (im[i] < 0) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"Negative row"); 400 if (im[i] >= mat->rmap->N) SETERRQ2(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"Row too large: row %D max %D",im[i],mat->rmap->N-1); 401 #endif 402 row = im[i]; 403 if (row >= rstart_orig && row < rend_orig) { 404 for (j=0; j<n; j++) { 405 col = in[j]; 406 if (roworiented) value = v[i*n+j]; 407 else value = v[i+j*m]; 408 /* Look up PetscInto the Hash Table */ 409 key = (row/bs)*Nbs+(col/bs)+1; 410 h1 = HASH(size,key,tmp); 411 412 413 idx = h1; 414 #if defined(PETSC_USE_DEBUG) 415 insert_ct++; 416 total_ct++; 417 if (HT[idx] != key) { 418 for (idx=h1; (idx<size) && (HT[idx]!=key); idx++,total_ct++) ; 419 if (idx == size) { 420 for (idx=0; (idx<h1) && (HT[idx]!=key); idx++,total_ct++) ; 421 if (idx == h1) SETERRQ2(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"(%D,%D) has no entry in the hash table", row, col); 422 } 423 } 424 #else 425 if (HT[idx] != key) { 426 for (idx=h1; (idx<size) && (HT[idx]!=key); idx++) ; 427 if (idx == size) { 428 for (idx=0; (idx<h1) && (HT[idx]!=key); idx++) ; 429 if (idx == h1) SETERRQ2(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"(%D,%D) has no entry in the hash table", row, col); 430 } 431 } 432 #endif 433 /* A HASH table entry is found, so insert the values at the correct address */ 434 if (addv == ADD_VALUES) *(HD[idx]+ (col % bs)*bs + (row % bs)) += value; 435 else *(HD[idx]+ (col % bs)*bs + (row % bs)) = value; 436 } 437 } else if (!baij->donotstash) { 438 if (roworiented) { 439 ierr = MatStashValuesRow_Private(&mat->stash,im[i],n,in,v+i*n,PETSC_FALSE);CHKERRQ(ierr); 440 } else { 441 ierr = MatStashValuesCol_Private(&mat->stash,im[i],n,in,v+i,m,PETSC_FALSE);CHKERRQ(ierr); 442 } 443 } 444 } 445 #if defined(PETSC_USE_DEBUG) 446 baij->ht_total_ct = total_ct; 447 baij->ht_insert_ct = insert_ct; 448 #endif 449 PetscFunctionReturn(0); 450 } 451 452 #undef __FUNCT__ 453 #define __FUNCT__ "MatSetValuesBlocked_MPIBAIJ_HT" 454 PetscErrorCode MatSetValuesBlocked_MPIBAIJ_HT(Mat mat,PetscInt m,const PetscInt im[],PetscInt n,const PetscInt in[],const PetscScalar v[],InsertMode addv) 455 { 456 Mat_MPIBAIJ *baij = (Mat_MPIBAIJ*)mat->data; 457 PetscBool roworiented = baij->roworiented; 458 PetscErrorCode ierr; 459 PetscInt i,j,ii,jj,row,col; 460 PetscInt rstart=baij->rstartbs; 461 PetscInt rend =mat->rmap->rend,stepval,bs=mat->rmap->bs,bs2=baij->bs2,nbs2=n*bs2; 462 PetscInt h1,key,size=baij->ht_size,idx,*HT=baij->ht,Nbs=baij->Nbs; 463 PetscReal tmp; 464 MatScalar **HD = baij->hd,*baij_a; 465 const PetscScalar *v_t,*value; 466 #if defined(PETSC_USE_DEBUG) 467 PetscInt total_ct=baij->ht_total_ct,insert_ct=baij->ht_insert_ct; 468 #endif 469 470 PetscFunctionBegin; 471 if (roworiented) stepval = (n-1)*bs; 472 else stepval = (m-1)*bs; 473 474 for (i=0; i<m; i++) { 475 #if defined(PETSC_USE_DEBUG) 476 if (im[i] < 0) SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"Negative row: %D",im[i]); 477 if (im[i] >= baij->Mbs) SETERRQ2(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"Row too large: row %D max %D",im[i],baij->Mbs-1); 478 #endif 479 row = im[i]; 480 v_t = v + i*nbs2; 481 if (row >= rstart && row < rend) { 482 for (j=0; j<n; j++) { 483 col = in[j]; 484 485 /* Look up into the Hash Table */ 486 key = row*Nbs+col+1; 487 h1 = HASH(size,key,tmp); 488 489 idx = h1; 490 #if defined(PETSC_USE_DEBUG) 491 total_ct++; 492 insert_ct++; 493 if (HT[idx] != key) { 494 for (idx=h1; (idx<size) && (HT[idx]!=key); idx++,total_ct++) ; 495 if (idx == size) { 496 for (idx=0; (idx<h1) && (HT[idx]!=key); idx++,total_ct++) ; 497 if (idx == h1) SETERRQ2(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"(%D,%D) has no entry in the hash table", row, col); 498 } 499 } 500 #else 501 if (HT[idx] != key) { 502 for (idx=h1; (idx<size) && (HT[idx]!=key); idx++) ; 503 if (idx == size) { 504 for (idx=0; (idx<h1) && (HT[idx]!=key); idx++) ; 505 if (idx == h1) SETERRQ2(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"(%D,%D) has no entry in the hash table", row, col); 506 } 507 } 508 #endif 509 baij_a = HD[idx]; 510 if (roworiented) { 511 /*value = v + i*(stepval+bs)*bs + j*bs;*/ 512 /* value = v + (i*(stepval+bs)+j)*bs; */ 513 value = v_t; 514 v_t += bs; 515 if (addv == ADD_VALUES) { 516 for (ii=0; ii<bs; ii++,value+=stepval) { 517 for (jj=ii; jj<bs2; jj+=bs) { 518 baij_a[jj] += *value++; 519 } 520 } 521 } else { 522 for (ii=0; ii<bs; ii++,value+=stepval) { 523 for (jj=ii; jj<bs2; jj+=bs) { 524 baij_a[jj] = *value++; 525 } 526 } 527 } 528 } else { 529 value = v + j*(stepval+bs)*bs + i*bs; 530 if (addv == ADD_VALUES) { 531 for (ii=0; ii<bs; ii++,value+=stepval,baij_a+=bs) { 532 for (jj=0; jj<bs; jj++) { 533 baij_a[jj] += *value++; 534 } 535 } 536 } else { 537 for (ii=0; ii<bs; ii++,value+=stepval,baij_a+=bs) { 538 for (jj=0; jj<bs; jj++) { 539 baij_a[jj] = *value++; 540 } 541 } 542 } 543 } 544 } 545 } else { 546 if (!baij->donotstash) { 547 if (roworiented) { 548 ierr = MatStashValuesRowBlocked_Private(&mat->bstash,im[i],n,in,v,m,n,i);CHKERRQ(ierr); 549 } else { 550 ierr = MatStashValuesColBlocked_Private(&mat->bstash,im[i],n,in,v,m,n,i);CHKERRQ(ierr); 551 } 552 } 553 } 554 } 555 #if defined(PETSC_USE_DEBUG) 556 baij->ht_total_ct = total_ct; 557 baij->ht_insert_ct = insert_ct; 558 #endif 559 PetscFunctionReturn(0); 560 } 561 562 #undef __FUNCT__ 563 #define __FUNCT__ "MatGetValues_MPIBAIJ" 564 PetscErrorCode MatGetValues_MPIBAIJ(Mat mat,PetscInt m,const PetscInt idxm[],PetscInt n,const PetscInt idxn[],PetscScalar v[]) 565 { 566 Mat_MPIBAIJ *baij = (Mat_MPIBAIJ*)mat->data; 567 PetscErrorCode ierr; 568 PetscInt bs = mat->rmap->bs,i,j,bsrstart = mat->rmap->rstart,bsrend = mat->rmap->rend; 569 PetscInt bscstart = mat->cmap->rstart,bscend = mat->cmap->rend,row,col,data; 570 571 PetscFunctionBegin; 572 for (i=0; i<m; i++) { 573 if (idxm[i] < 0) continue; /* SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"Negative row: %D",idxm[i]);*/ 574 if (idxm[i] >= mat->rmap->N) SETERRQ2(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"Row too large: row %D max %D",idxm[i],mat->rmap->N-1); 575 if (idxm[i] >= bsrstart && idxm[i] < bsrend) { 576 row = idxm[i] - bsrstart; 577 for (j=0; j<n; j++) { 578 if (idxn[j] < 0) continue; /* SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"Negative column: %D",idxn[j]); */ 579 if (idxn[j] >= mat->cmap->N) SETERRQ2(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"Column too large: col %D max %D",idxn[j],mat->cmap->N-1); 580 if (idxn[j] >= bscstart && idxn[j] < bscend) { 581 col = idxn[j] - bscstart; 582 ierr = MatGetValues_SeqBAIJ(baij->A,1,&row,1,&col,v+i*n+j);CHKERRQ(ierr); 583 } else { 584 if (!baij->colmap) { 585 ierr = MatCreateColmap_MPIBAIJ_Private(mat);CHKERRQ(ierr); 586 } 587 #if defined(PETSC_USE_CTABLE) 588 ierr = PetscTableFind(baij->colmap,idxn[j]/bs+1,&data);CHKERRQ(ierr); 589 data--; 590 #else 591 data = baij->colmap[idxn[j]/bs]-1; 592 #endif 593 if ((data < 0) || (baij->garray[data/bs] != idxn[j]/bs)) *(v+i*n+j) = 0.0; 594 else { 595 col = data + idxn[j]%bs; 596 ierr = MatGetValues_SeqBAIJ(baij->B,1,&row,1,&col,v+i*n+j);CHKERRQ(ierr); 597 } 598 } 599 } 600 } else SETERRQ(PETSC_COMM_SELF,PETSC_ERR_SUP,"Only local values currently supported"); 601 } 602 PetscFunctionReturn(0); 603 } 604 605 #undef __FUNCT__ 606 #define __FUNCT__ "MatNorm_MPIBAIJ" 607 PetscErrorCode MatNorm_MPIBAIJ(Mat mat,NormType type,PetscReal *nrm) 608 { 609 Mat_MPIBAIJ *baij = (Mat_MPIBAIJ*)mat->data; 610 Mat_SeqBAIJ *amat = (Mat_SeqBAIJ*)baij->A->data,*bmat = (Mat_SeqBAIJ*)baij->B->data; 611 PetscErrorCode ierr; 612 PetscInt i,j,bs2=baij->bs2,bs=baij->A->rmap->bs,nz,row,col; 613 PetscReal sum = 0.0; 614 MatScalar *v; 615 616 PetscFunctionBegin; 617 if (baij->size == 1) { 618 ierr = MatNorm(baij->A,type,nrm);CHKERRQ(ierr); 619 } else { 620 if (type == NORM_FROBENIUS) { 621 v = amat->a; 622 nz = amat->nz*bs2; 623 for (i=0; i<nz; i++) { 624 sum += PetscRealPart(PetscConj(*v)*(*v)); v++; 625 } 626 v = bmat->a; 627 nz = bmat->nz*bs2; 628 for (i=0; i<nz; i++) { 629 sum += PetscRealPart(PetscConj(*v)*(*v)); v++; 630 } 631 ierr = MPI_Allreduce(&sum,nrm,1,MPIU_REAL,MPIU_SUM,PetscObjectComm((PetscObject)mat));CHKERRQ(ierr); 632 *nrm = PetscSqrtReal(*nrm); 633 } else if (type == NORM_1) { /* max column sum */ 634 PetscReal *tmp,*tmp2; 635 PetscInt *jj,*garray=baij->garray,cstart=baij->rstartbs; 636 ierr = PetscMalloc2(mat->cmap->N,&tmp,mat->cmap->N,&tmp2);CHKERRQ(ierr); 637 ierr = PetscMemzero(tmp,mat->cmap->N*sizeof(PetscReal));CHKERRQ(ierr); 638 v = amat->a; jj = amat->j; 639 for (i=0; i<amat->nz; i++) { 640 for (j=0; j<bs; j++) { 641 col = bs*(cstart + *jj) + j; /* column index */ 642 for (row=0; row<bs; row++) { 643 tmp[col] += PetscAbsScalar(*v); v++; 644 } 645 } 646 jj++; 647 } 648 v = bmat->a; jj = bmat->j; 649 for (i=0; i<bmat->nz; i++) { 650 for (j=0; j<bs; j++) { 651 col = bs*garray[*jj] + j; 652 for (row=0; row<bs; row++) { 653 tmp[col] += PetscAbsScalar(*v); v++; 654 } 655 } 656 jj++; 657 } 658 ierr = MPI_Allreduce(tmp,tmp2,mat->cmap->N,MPIU_REAL,MPIU_SUM,PetscObjectComm((PetscObject)mat));CHKERRQ(ierr); 659 *nrm = 0.0; 660 for (j=0; j<mat->cmap->N; j++) { 661 if (tmp2[j] > *nrm) *nrm = tmp2[j]; 662 } 663 ierr = PetscFree2(tmp,tmp2);CHKERRQ(ierr); 664 } else if (type == NORM_INFINITY) { /* max row sum */ 665 PetscReal *sums; 666 ierr = PetscMalloc1(bs,&sums);CHKERRQ(ierr); 667 sum = 0.0; 668 for (j=0; j<amat->mbs; j++) { 669 for (row=0; row<bs; row++) sums[row] = 0.0; 670 v = amat->a + bs2*amat->i[j]; 671 nz = amat->i[j+1]-amat->i[j]; 672 for (i=0; i<nz; i++) { 673 for (col=0; col<bs; col++) { 674 for (row=0; row<bs; row++) { 675 sums[row] += PetscAbsScalar(*v); v++; 676 } 677 } 678 } 679 v = bmat->a + bs2*bmat->i[j]; 680 nz = bmat->i[j+1]-bmat->i[j]; 681 for (i=0; i<nz; i++) { 682 for (col=0; col<bs; col++) { 683 for (row=0; row<bs; row++) { 684 sums[row] += PetscAbsScalar(*v); v++; 685 } 686 } 687 } 688 for (row=0; row<bs; row++) { 689 if (sums[row] > sum) sum = sums[row]; 690 } 691 } 692 ierr = MPI_Allreduce(&sum,nrm,1,MPIU_REAL,MPIU_MAX,PetscObjectComm((PetscObject)mat));CHKERRQ(ierr); 693 ierr = PetscFree(sums);CHKERRQ(ierr); 694 } else SETERRQ(PetscObjectComm((PetscObject)mat),PETSC_ERR_SUP,"No support for this norm yet"); 695 } 696 PetscFunctionReturn(0); 697 } 698 699 /* 700 Creates the hash table, and sets the table 701 This table is created only once. 702 If new entried need to be added to the matrix 703 then the hash table has to be destroyed and 704 recreated. 705 */ 706 #undef __FUNCT__ 707 #define __FUNCT__ "MatCreateHashTable_MPIBAIJ_Private" 708 PetscErrorCode MatCreateHashTable_MPIBAIJ_Private(Mat mat,PetscReal factor) 709 { 710 Mat_MPIBAIJ *baij = (Mat_MPIBAIJ*)mat->data; 711 Mat A = baij->A,B=baij->B; 712 Mat_SeqBAIJ *a = (Mat_SeqBAIJ*)A->data,*b=(Mat_SeqBAIJ*)B->data; 713 PetscInt i,j,k,nz=a->nz+b->nz,h1,*ai=a->i,*aj=a->j,*bi=b->i,*bj=b->j; 714 PetscErrorCode ierr; 715 PetscInt ht_size,bs2=baij->bs2,rstart=baij->rstartbs; 716 PetscInt cstart=baij->cstartbs,*garray=baij->garray,row,col,Nbs=baij->Nbs; 717 PetscInt *HT,key; 718 MatScalar **HD; 719 PetscReal tmp; 720 #if defined(PETSC_USE_INFO) 721 PetscInt ct=0,max=0; 722 #endif 723 724 PetscFunctionBegin; 725 if (baij->ht) PetscFunctionReturn(0); 726 727 baij->ht_size = (PetscInt)(factor*nz); 728 ht_size = baij->ht_size; 729 730 /* Allocate Memory for Hash Table */ 731 ierr = PetscCalloc2(ht_size,&baij->hd,ht_size,&baij->ht);CHKERRQ(ierr); 732 HD = baij->hd; 733 HT = baij->ht; 734 735 /* Loop Over A */ 736 for (i=0; i<a->mbs; i++) { 737 for (j=ai[i]; j<ai[i+1]; j++) { 738 row = i+rstart; 739 col = aj[j]+cstart; 740 741 key = row*Nbs + col + 1; 742 h1 = HASH(ht_size,key,tmp); 743 for (k=0; k<ht_size; k++) { 744 if (!HT[(h1+k)%ht_size]) { 745 HT[(h1+k)%ht_size] = key; 746 HD[(h1+k)%ht_size] = a->a + j*bs2; 747 break; 748 #if defined(PETSC_USE_INFO) 749 } else { 750 ct++; 751 #endif 752 } 753 } 754 #if defined(PETSC_USE_INFO) 755 if (k> max) max = k; 756 #endif 757 } 758 } 759 /* Loop Over B */ 760 for (i=0; i<b->mbs; i++) { 761 for (j=bi[i]; j<bi[i+1]; j++) { 762 row = i+rstart; 763 col = garray[bj[j]]; 764 key = row*Nbs + col + 1; 765 h1 = HASH(ht_size,key,tmp); 766 for (k=0; k<ht_size; k++) { 767 if (!HT[(h1+k)%ht_size]) { 768 HT[(h1+k)%ht_size] = key; 769 HD[(h1+k)%ht_size] = b->a + j*bs2; 770 break; 771 #if defined(PETSC_USE_INFO) 772 } else { 773 ct++; 774 #endif 775 } 776 } 777 #if defined(PETSC_USE_INFO) 778 if (k> max) max = k; 779 #endif 780 } 781 } 782 783 /* Print Summary */ 784 #if defined(PETSC_USE_INFO) 785 for (i=0,j=0; i<ht_size; i++) { 786 if (HT[i]) j++; 787 } 788 ierr = PetscInfo2(mat,"Average Search = %5.2f,max search = %D\n",(!j)? 0.0:((PetscReal)(ct+j))/j,max);CHKERRQ(ierr); 789 #endif 790 PetscFunctionReturn(0); 791 } 792 793 #undef __FUNCT__ 794 #define __FUNCT__ "MatAssemblyBegin_MPIBAIJ" 795 PetscErrorCode MatAssemblyBegin_MPIBAIJ(Mat mat,MatAssemblyType mode) 796 { 797 Mat_MPIBAIJ *baij = (Mat_MPIBAIJ*)mat->data; 798 PetscErrorCode ierr; 799 PetscInt nstash,reallocs; 800 InsertMode addv; 801 802 PetscFunctionBegin; 803 if (baij->donotstash || mat->nooffprocentries) PetscFunctionReturn(0); 804 805 /* make sure all processors are either in INSERTMODE or ADDMODE */ 806 ierr = MPI_Allreduce((PetscEnum*)&mat->insertmode,(PetscEnum*)&addv,1,MPIU_ENUM,MPI_BOR,PetscObjectComm((PetscObject)mat));CHKERRQ(ierr); 807 if (addv == (ADD_VALUES|INSERT_VALUES)) SETERRQ(PetscObjectComm((PetscObject)mat),PETSC_ERR_ARG_WRONGSTATE,"Some processors inserted others added"); 808 mat->insertmode = addv; /* in case this processor had no cache */ 809 810 ierr = MatStashScatterBegin_Private(mat,&mat->stash,mat->rmap->range);CHKERRQ(ierr); 811 ierr = MatStashScatterBegin_Private(mat,&mat->bstash,baij->rangebs);CHKERRQ(ierr); 812 ierr = MatStashGetInfo_Private(&mat->stash,&nstash,&reallocs);CHKERRQ(ierr); 813 ierr = PetscInfo2(mat,"Stash has %D entries,uses %D mallocs.\n",nstash,reallocs);CHKERRQ(ierr); 814 ierr = MatStashGetInfo_Private(&mat->bstash,&nstash,&reallocs);CHKERRQ(ierr); 815 ierr = PetscInfo2(mat,"Block-Stash has %D entries, uses %D mallocs.\n",nstash,reallocs);CHKERRQ(ierr); 816 PetscFunctionReturn(0); 817 } 818 819 #undef __FUNCT__ 820 #define __FUNCT__ "MatAssemblyEnd_MPIBAIJ" 821 PetscErrorCode MatAssemblyEnd_MPIBAIJ(Mat mat,MatAssemblyType mode) 822 { 823 Mat_MPIBAIJ *baij=(Mat_MPIBAIJ*)mat->data; 824 Mat_SeqBAIJ *a =(Mat_SeqBAIJ*)baij->A->data; 825 PetscErrorCode ierr; 826 PetscInt i,j,rstart,ncols,flg,bs2=baij->bs2; 827 PetscInt *row,*col; 828 PetscBool r1,r2,r3,other_disassembled; 829 MatScalar *val; 830 InsertMode addv = mat->insertmode; 831 PetscMPIInt n; 832 833 PetscFunctionBegin; 834 /* do not use 'b=(Mat_SeqBAIJ*)baij->B->data' as B can be reset in disassembly */ 835 if (!baij->donotstash && !mat->nooffprocentries) { 836 while (1) { 837 ierr = MatStashScatterGetMesg_Private(&mat->stash,&n,&row,&col,&val,&flg);CHKERRQ(ierr); 838 if (!flg) break; 839 840 for (i=0; i<n;) { 841 /* Now identify the consecutive vals belonging to the same row */ 842 for (j=i,rstart=row[j]; j<n; j++) { 843 if (row[j] != rstart) break; 844 } 845 if (j < n) ncols = j-i; 846 else ncols = n-i; 847 /* Now assemble all these values with a single function call */ 848 ierr = MatSetValues_MPIBAIJ(mat,1,row+i,ncols,col+i,val+i,addv);CHKERRQ(ierr); 849 i = j; 850 } 851 } 852 ierr = MatStashScatterEnd_Private(&mat->stash);CHKERRQ(ierr); 853 /* Now process the block-stash. Since the values are stashed column-oriented, 854 set the roworiented flag to column oriented, and after MatSetValues() 855 restore the original flags */ 856 r1 = baij->roworiented; 857 r2 = a->roworiented; 858 r3 = ((Mat_SeqBAIJ*)baij->B->data)->roworiented; 859 860 baij->roworiented = PETSC_FALSE; 861 a->roworiented = PETSC_FALSE; 862 863 (((Mat_SeqBAIJ*)baij->B->data))->roworiented = PETSC_FALSE; /* b->roworiented */ 864 while (1) { 865 ierr = MatStashScatterGetMesg_Private(&mat->bstash,&n,&row,&col,&val,&flg);CHKERRQ(ierr); 866 if (!flg) break; 867 868 for (i=0; i<n;) { 869 /* Now identify the consecutive vals belonging to the same row */ 870 for (j=i,rstart=row[j]; j<n; j++) { 871 if (row[j] != rstart) break; 872 } 873 if (j < n) ncols = j-i; 874 else ncols = n-i; 875 ierr = MatSetValuesBlocked_MPIBAIJ(mat,1,row+i,ncols,col+i,val+i*bs2,addv);CHKERRQ(ierr); 876 i = j; 877 } 878 } 879 ierr = MatStashScatterEnd_Private(&mat->bstash);CHKERRQ(ierr); 880 881 baij->roworiented = r1; 882 a->roworiented = r2; 883 884 ((Mat_SeqBAIJ*)baij->B->data)->roworiented = r3; /* b->roworiented */ 885 } 886 887 ierr = MatAssemblyBegin(baij->A,mode);CHKERRQ(ierr); 888 ierr = MatAssemblyEnd(baij->A,mode);CHKERRQ(ierr); 889 890 /* determine if any processor has disassembled, if so we must 891 also disassemble ourselfs, in order that we may reassemble. */ 892 /* 893 if nonzero structure of submatrix B cannot change then we know that 894 no processor disassembled thus we can skip this stuff 895 */ 896 if (!((Mat_SeqBAIJ*)baij->B->data)->nonew) { 897 ierr = MPI_Allreduce(&mat->was_assembled,&other_disassembled,1,MPIU_BOOL,MPI_PROD,PetscObjectComm((PetscObject)mat));CHKERRQ(ierr); 898 if (mat->was_assembled && !other_disassembled) { 899 ierr = MatDisAssemble_MPIBAIJ(mat);CHKERRQ(ierr); 900 } 901 } 902 903 if (!mat->was_assembled && mode == MAT_FINAL_ASSEMBLY) { 904 ierr = MatSetUpMultiply_MPIBAIJ(mat);CHKERRQ(ierr); 905 } 906 ierr = MatAssemblyBegin(baij->B,mode);CHKERRQ(ierr); 907 ierr = MatAssemblyEnd(baij->B,mode);CHKERRQ(ierr); 908 909 #if defined(PETSC_USE_INFO) 910 if (baij->ht && mode== MAT_FINAL_ASSEMBLY) { 911 ierr = PetscInfo1(mat,"Average Hash Table Search in MatSetValues = %5.2f\n",((PetscReal)baij->ht_total_ct)/baij->ht_insert_ct);CHKERRQ(ierr); 912 913 baij->ht_total_ct = 0; 914 baij->ht_insert_ct = 0; 915 } 916 #endif 917 if (baij->ht_flag && !baij->ht && mode == MAT_FINAL_ASSEMBLY) { 918 ierr = MatCreateHashTable_MPIBAIJ_Private(mat,baij->ht_fact);CHKERRQ(ierr); 919 920 mat->ops->setvalues = MatSetValues_MPIBAIJ_HT; 921 mat->ops->setvaluesblocked = MatSetValuesBlocked_MPIBAIJ_HT; 922 } 923 924 ierr = PetscFree2(baij->rowvalues,baij->rowindices);CHKERRQ(ierr); 925 926 baij->rowvalues = 0; 927 928 /* if no new nonzero locations are allowed in matrix then only set the matrix state the first time through */ 929 if ((!mat->was_assembled && mode == MAT_FINAL_ASSEMBLY) || !((Mat_SeqBAIJ*)(baij->A->data))->nonew) { 930 PetscObjectState state = baij->A->nonzerostate + baij->B->nonzerostate; 931 ierr = MPI_Allreduce(&state,&mat->nonzerostate,1,MPIU_INT64,MPI_SUM,PetscObjectComm((PetscObject)mat));CHKERRQ(ierr); 932 } 933 PetscFunctionReturn(0); 934 } 935 936 extern PetscErrorCode MatView_SeqBAIJ(Mat,PetscViewer); 937 #include <petscdraw.h> 938 #undef __FUNCT__ 939 #define __FUNCT__ "MatView_MPIBAIJ_ASCIIorDraworSocket" 940 static PetscErrorCode MatView_MPIBAIJ_ASCIIorDraworSocket(Mat mat,PetscViewer viewer) 941 { 942 Mat_MPIBAIJ *baij = (Mat_MPIBAIJ*)mat->data; 943 PetscErrorCode ierr; 944 PetscMPIInt rank = baij->rank; 945 PetscInt bs = mat->rmap->bs; 946 PetscBool iascii,isdraw; 947 PetscViewer sviewer; 948 PetscViewerFormat format; 949 950 PetscFunctionBegin; 951 ierr = PetscObjectTypeCompare((PetscObject)viewer,PETSCVIEWERASCII,&iascii);CHKERRQ(ierr); 952 ierr = PetscObjectTypeCompare((PetscObject)viewer,PETSCVIEWERDRAW,&isdraw);CHKERRQ(ierr); 953 if (iascii) { 954 ierr = PetscViewerGetFormat(viewer,&format);CHKERRQ(ierr); 955 if (format == PETSC_VIEWER_ASCII_INFO_DETAIL) { 956 MatInfo info; 957 ierr = MPI_Comm_rank(PetscObjectComm((PetscObject)mat),&rank);CHKERRQ(ierr); 958 ierr = MatGetInfo(mat,MAT_LOCAL,&info);CHKERRQ(ierr); 959 ierr = PetscViewerASCIISynchronizedAllow(viewer,PETSC_TRUE);CHKERRQ(ierr); 960 ierr = PetscViewerASCIISynchronizedPrintf(viewer,"[%d] Local rows %D nz %D nz alloced %D bs %D mem %D\n", 961 rank,mat->rmap->n,(PetscInt)info.nz_used,(PetscInt)info.nz_allocated,mat->rmap->bs,(PetscInt)info.memory);CHKERRQ(ierr); 962 ierr = MatGetInfo(baij->A,MAT_LOCAL,&info);CHKERRQ(ierr); 963 ierr = PetscViewerASCIISynchronizedPrintf(viewer,"[%d] on-diagonal part: nz %D \n",rank,(PetscInt)info.nz_used);CHKERRQ(ierr); 964 ierr = MatGetInfo(baij->B,MAT_LOCAL,&info);CHKERRQ(ierr); 965 ierr = PetscViewerASCIISynchronizedPrintf(viewer,"[%d] off-diagonal part: nz %D \n",rank,(PetscInt)info.nz_used);CHKERRQ(ierr); 966 ierr = PetscViewerFlush(viewer);CHKERRQ(ierr); 967 ierr = PetscViewerASCIISynchronizedAllow(viewer,PETSC_FALSE);CHKERRQ(ierr); 968 ierr = PetscViewerASCIIPrintf(viewer,"Information on VecScatter used in matrix-vector product: \n");CHKERRQ(ierr); 969 ierr = VecScatterView(baij->Mvctx,viewer);CHKERRQ(ierr); 970 PetscFunctionReturn(0); 971 } else if (format == PETSC_VIEWER_ASCII_INFO) { 972 ierr = PetscViewerASCIIPrintf(viewer," block size is %D\n",bs);CHKERRQ(ierr); 973 PetscFunctionReturn(0); 974 } else if (format == PETSC_VIEWER_ASCII_FACTOR_INFO) { 975 PetscFunctionReturn(0); 976 } 977 } 978 979 if (isdraw) { 980 PetscDraw draw; 981 PetscBool isnull; 982 ierr = PetscViewerDrawGetDraw(viewer,0,&draw);CHKERRQ(ierr); 983 ierr = PetscDrawIsNull(draw,&isnull);CHKERRQ(ierr); if (isnull) PetscFunctionReturn(0); 984 } 985 986 { 987 /* assemble the entire matrix onto first processor. */ 988 Mat A; 989 Mat_SeqBAIJ *Aloc; 990 PetscInt M = mat->rmap->N,N = mat->cmap->N,*ai,*aj,col,i,j,k,*rvals,mbs = baij->mbs; 991 MatScalar *a; 992 993 /* Here we are creating a temporary matrix, so will assume MPIBAIJ is acceptable */ 994 /* Perhaps this should be the type of mat? */ 995 ierr = MatCreate(PetscObjectComm((PetscObject)mat),&A);CHKERRQ(ierr); 996 if (!rank) { 997 ierr = MatSetSizes(A,M,N,M,N);CHKERRQ(ierr); 998 } else { 999 ierr = MatSetSizes(A,0,0,M,N);CHKERRQ(ierr); 1000 } 1001 ierr = MatSetType(A,MATMPIBAIJ);CHKERRQ(ierr); 1002 ierr = MatMPIBAIJSetPreallocation(A,mat->rmap->bs,0,NULL,0,NULL);CHKERRQ(ierr); 1003 ierr = MatSetOption(A,MAT_NEW_NONZERO_LOCATION_ERR,PETSC_FALSE);CHKERRQ(ierr); 1004 ierr = PetscLogObjectParent((PetscObject)mat,(PetscObject)A);CHKERRQ(ierr); 1005 1006 /* copy over the A part */ 1007 Aloc = (Mat_SeqBAIJ*)baij->A->data; 1008 ai = Aloc->i; aj = Aloc->j; a = Aloc->a; 1009 ierr = PetscMalloc1(bs,&rvals);CHKERRQ(ierr); 1010 1011 for (i=0; i<mbs; i++) { 1012 rvals[0] = bs*(baij->rstartbs + i); 1013 for (j=1; j<bs; j++) rvals[j] = rvals[j-1] + 1; 1014 for (j=ai[i]; j<ai[i+1]; j++) { 1015 col = (baij->cstartbs+aj[j])*bs; 1016 for (k=0; k<bs; k++) { 1017 ierr = MatSetValues_MPIBAIJ(A,bs,rvals,1,&col,a,INSERT_VALUES);CHKERRQ(ierr); 1018 col++; a += bs; 1019 } 1020 } 1021 } 1022 /* copy over the B part */ 1023 Aloc = (Mat_SeqBAIJ*)baij->B->data; 1024 ai = Aloc->i; aj = Aloc->j; a = Aloc->a; 1025 for (i=0; i<mbs; i++) { 1026 rvals[0] = bs*(baij->rstartbs + i); 1027 for (j=1; j<bs; j++) rvals[j] = rvals[j-1] + 1; 1028 for (j=ai[i]; j<ai[i+1]; j++) { 1029 col = baij->garray[aj[j]]*bs; 1030 for (k=0; k<bs; k++) { 1031 ierr = MatSetValues_MPIBAIJ(A,bs,rvals,1,&col,a,INSERT_VALUES);CHKERRQ(ierr); 1032 col++; a += bs; 1033 } 1034 } 1035 } 1036 ierr = PetscFree(rvals);CHKERRQ(ierr); 1037 ierr = MatAssemblyBegin(A,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 1038 ierr = MatAssemblyEnd(A,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 1039 /* 1040 Everyone has to call to draw the matrix since the graphics waits are 1041 synchronized across all processors that share the PetscDraw object 1042 */ 1043 ierr = PetscViewerGetSingleton(viewer,&sviewer);CHKERRQ(ierr); 1044 if (!rank) { 1045 ierr = MatView_SeqBAIJ(((Mat_MPIBAIJ*)(A->data))->A,sviewer);CHKERRQ(ierr); 1046 } 1047 ierr = PetscViewerRestoreSingleton(viewer,&sviewer);CHKERRQ(ierr); 1048 ierr = MatDestroy(&A);CHKERRQ(ierr); 1049 } 1050 PetscFunctionReturn(0); 1051 } 1052 1053 #undef __FUNCT__ 1054 #define __FUNCT__ "MatView_MPIBAIJ_Binary" 1055 static PetscErrorCode MatView_MPIBAIJ_Binary(Mat mat,PetscViewer viewer) 1056 { 1057 Mat_MPIBAIJ *a = (Mat_MPIBAIJ*)mat->data; 1058 Mat_SeqBAIJ *A = (Mat_SeqBAIJ*)a->A->data; 1059 Mat_SeqBAIJ *B = (Mat_SeqBAIJ*)a->B->data; 1060 PetscErrorCode ierr; 1061 PetscInt i,*row_lens,*crow_lens,bs = mat->rmap->bs,j,k,bs2=a->bs2,header[4],nz,rlen; 1062 PetscInt *range=0,nzmax,*column_indices,cnt,col,*garray = a->garray,cstart = mat->cmap->rstart/bs,len,pcnt,l,ll; 1063 int fd; 1064 PetscScalar *column_values; 1065 FILE *file; 1066 PetscMPIInt rank,size,tag = ((PetscObject)viewer)->tag; 1067 PetscInt message_count,flowcontrolcount; 1068 1069 PetscFunctionBegin; 1070 ierr = MPI_Comm_rank(PetscObjectComm((PetscObject)mat),&rank);CHKERRQ(ierr); 1071 ierr = MPI_Comm_size(PetscObjectComm((PetscObject)mat),&size);CHKERRQ(ierr); 1072 nz = bs2*(A->nz + B->nz); 1073 rlen = mat->rmap->n; 1074 if (!rank) { 1075 header[0] = MAT_FILE_CLASSID; 1076 header[1] = mat->rmap->N; 1077 header[2] = mat->cmap->N; 1078 1079 ierr = MPI_Reduce(&nz,&header[3],1,MPIU_INT,MPI_SUM,0,PetscObjectComm((PetscObject)mat));CHKERRQ(ierr); 1080 ierr = PetscViewerBinaryGetDescriptor(viewer,&fd);CHKERRQ(ierr); 1081 ierr = PetscBinaryWrite(fd,header,4,PETSC_INT,PETSC_TRUE);CHKERRQ(ierr); 1082 /* get largest number of rows any processor has */ 1083 range = mat->rmap->range; 1084 for (i=1; i<size; i++) { 1085 rlen = PetscMax(rlen,range[i+1] - range[i]); 1086 } 1087 } else { 1088 ierr = MPI_Reduce(&nz,0,1,MPIU_INT,MPI_SUM,0,PetscObjectComm((PetscObject)mat));CHKERRQ(ierr); 1089 } 1090 1091 ierr = PetscMalloc1((rlen/bs),&crow_lens);CHKERRQ(ierr); 1092 /* compute lengths of each row */ 1093 for (i=0; i<a->mbs; i++) { 1094 crow_lens[i] = A->i[i+1] - A->i[i] + B->i[i+1] - B->i[i]; 1095 } 1096 /* store the row lengths to the file */ 1097 ierr = PetscViewerFlowControlStart(viewer,&message_count,&flowcontrolcount);CHKERRQ(ierr); 1098 if (!rank) { 1099 MPI_Status status; 1100 ierr = PetscMalloc1(rlen,&row_lens);CHKERRQ(ierr); 1101 rlen = (range[1] - range[0])/bs; 1102 for (i=0; i<rlen; i++) { 1103 for (j=0; j<bs; j++) { 1104 row_lens[i*bs+j] = bs*crow_lens[i]; 1105 } 1106 } 1107 ierr = PetscBinaryWrite(fd,row_lens,bs*rlen,PETSC_INT,PETSC_TRUE);CHKERRQ(ierr); 1108 for (i=1; i<size; i++) { 1109 rlen = (range[i+1] - range[i])/bs; 1110 ierr = PetscViewerFlowControlStepMaster(viewer,i,&message_count,flowcontrolcount);CHKERRQ(ierr); 1111 ierr = MPI_Recv(crow_lens,rlen,MPIU_INT,i,tag,PetscObjectComm((PetscObject)mat),&status);CHKERRQ(ierr); 1112 for (k=0; k<rlen; k++) { 1113 for (j=0; j<bs; j++) { 1114 row_lens[k*bs+j] = bs*crow_lens[k]; 1115 } 1116 } 1117 ierr = PetscBinaryWrite(fd,row_lens,bs*rlen,PETSC_INT,PETSC_TRUE);CHKERRQ(ierr); 1118 } 1119 ierr = PetscViewerFlowControlEndMaster(viewer,&message_count);CHKERRQ(ierr); 1120 ierr = PetscFree(row_lens);CHKERRQ(ierr); 1121 } else { 1122 ierr = PetscViewerFlowControlStepWorker(viewer,rank,&message_count);CHKERRQ(ierr); 1123 ierr = MPI_Send(crow_lens,mat->rmap->n/bs,MPIU_INT,0,tag,PetscObjectComm((PetscObject)mat));CHKERRQ(ierr); 1124 ierr = PetscViewerFlowControlEndWorker(viewer,&message_count);CHKERRQ(ierr); 1125 } 1126 ierr = PetscFree(crow_lens);CHKERRQ(ierr); 1127 1128 /* load up the local column indices. Include for all rows not just one for each block row since process 0 does not have the 1129 information needed to make it for each row from a block row. This does require more communication but still not more than 1130 the communication needed for the nonzero values */ 1131 nzmax = nz; /* space a largest processor needs */ 1132 ierr = MPI_Reduce(&nz,&nzmax,1,MPIU_INT,MPI_MAX,0,PetscObjectComm((PetscObject)mat));CHKERRQ(ierr); 1133 ierr = PetscMalloc1(nzmax,&column_indices);CHKERRQ(ierr); 1134 cnt = 0; 1135 for (i=0; i<a->mbs; i++) { 1136 pcnt = cnt; 1137 for (j=B->i[i]; j<B->i[i+1]; j++) { 1138 if ((col = garray[B->j[j]]) > cstart) break; 1139 for (l=0; l<bs; l++) { 1140 column_indices[cnt++] = bs*col+l; 1141 } 1142 } 1143 for (k=A->i[i]; k<A->i[i+1]; k++) { 1144 for (l=0; l<bs; l++) { 1145 column_indices[cnt++] = bs*(A->j[k] + cstart)+l; 1146 } 1147 } 1148 for (; j<B->i[i+1]; j++) { 1149 for (l=0; l<bs; l++) { 1150 column_indices[cnt++] = bs*garray[B->j[j]]+l; 1151 } 1152 } 1153 len = cnt - pcnt; 1154 for (k=1; k<bs; k++) { 1155 ierr = PetscMemcpy(&column_indices[cnt],&column_indices[pcnt],len*sizeof(PetscInt));CHKERRQ(ierr); 1156 cnt += len; 1157 } 1158 } 1159 if (cnt != nz) SETERRQ2(PETSC_COMM_SELF,PETSC_ERR_LIB,"Internal PETSc error: cnt = %D nz = %D",cnt,nz); 1160 1161 /* store the columns to the file */ 1162 ierr = PetscViewerFlowControlStart(viewer,&message_count,&flowcontrolcount);CHKERRQ(ierr); 1163 if (!rank) { 1164 MPI_Status status; 1165 ierr = PetscBinaryWrite(fd,column_indices,nz,PETSC_INT,PETSC_TRUE);CHKERRQ(ierr); 1166 for (i=1; i<size; i++) { 1167 ierr = PetscViewerFlowControlStepMaster(viewer,i,&message_count,flowcontrolcount);CHKERRQ(ierr); 1168 ierr = MPI_Recv(&cnt,1,MPIU_INT,i,tag,PetscObjectComm((PetscObject)mat),&status);CHKERRQ(ierr); 1169 ierr = MPI_Recv(column_indices,cnt,MPIU_INT,i,tag,PetscObjectComm((PetscObject)mat),&status);CHKERRQ(ierr); 1170 ierr = PetscBinaryWrite(fd,column_indices,cnt,PETSC_INT,PETSC_TRUE);CHKERRQ(ierr); 1171 } 1172 ierr = PetscViewerFlowControlEndMaster(viewer,&message_count);CHKERRQ(ierr); 1173 } else { 1174 ierr = PetscViewerFlowControlStepWorker(viewer,rank,&message_count);CHKERRQ(ierr); 1175 ierr = MPI_Send(&cnt,1,MPIU_INT,0,tag,PetscObjectComm((PetscObject)mat));CHKERRQ(ierr); 1176 ierr = MPI_Send(column_indices,cnt,MPIU_INT,0,tag,PetscObjectComm((PetscObject)mat));CHKERRQ(ierr); 1177 ierr = PetscViewerFlowControlEndWorker(viewer,&message_count);CHKERRQ(ierr); 1178 } 1179 ierr = PetscFree(column_indices);CHKERRQ(ierr); 1180 1181 /* load up the numerical values */ 1182 ierr = PetscMalloc1(nzmax,&column_values);CHKERRQ(ierr); 1183 cnt = 0; 1184 for (i=0; i<a->mbs; i++) { 1185 rlen = bs*(B->i[i+1] - B->i[i] + A->i[i+1] - A->i[i]); 1186 for (j=B->i[i]; j<B->i[i+1]; j++) { 1187 if (garray[B->j[j]] > cstart) break; 1188 for (l=0; l<bs; l++) { 1189 for (ll=0; ll<bs; ll++) { 1190 column_values[cnt + l*rlen + ll] = B->a[bs2*j+l+bs*ll]; 1191 } 1192 } 1193 cnt += bs; 1194 } 1195 for (k=A->i[i]; k<A->i[i+1]; k++) { 1196 for (l=0; l<bs; l++) { 1197 for (ll=0; ll<bs; ll++) { 1198 column_values[cnt + l*rlen + ll] = A->a[bs2*k+l+bs*ll]; 1199 } 1200 } 1201 cnt += bs; 1202 } 1203 for (; j<B->i[i+1]; j++) { 1204 for (l=0; l<bs; l++) { 1205 for (ll=0; ll<bs; ll++) { 1206 column_values[cnt + l*rlen + ll] = B->a[bs2*j+l+bs*ll]; 1207 } 1208 } 1209 cnt += bs; 1210 } 1211 cnt += (bs-1)*rlen; 1212 } 1213 if (cnt != nz) SETERRQ2(PETSC_COMM_SELF,PETSC_ERR_PLIB,"Internal PETSc error: cnt = %D nz = %D",cnt,nz); 1214 1215 /* store the column values to the file */ 1216 ierr = PetscViewerFlowControlStart(viewer,&message_count,&flowcontrolcount);CHKERRQ(ierr); 1217 if (!rank) { 1218 MPI_Status status; 1219 ierr = PetscBinaryWrite(fd,column_values,nz,PETSC_SCALAR,PETSC_TRUE);CHKERRQ(ierr); 1220 for (i=1; i<size; i++) { 1221 ierr = PetscViewerFlowControlStepMaster(viewer,i,&message_count,flowcontrolcount);CHKERRQ(ierr); 1222 ierr = MPI_Recv(&cnt,1,MPIU_INT,i,tag,PetscObjectComm((PetscObject)mat),&status);CHKERRQ(ierr); 1223 ierr = MPI_Recv(column_values,cnt,MPIU_SCALAR,i,tag,PetscObjectComm((PetscObject)mat),&status);CHKERRQ(ierr); 1224 ierr = PetscBinaryWrite(fd,column_values,cnt,PETSC_SCALAR,PETSC_TRUE);CHKERRQ(ierr); 1225 } 1226 ierr = PetscViewerFlowControlEndMaster(viewer,&message_count);CHKERRQ(ierr); 1227 } else { 1228 ierr = PetscViewerFlowControlStepWorker(viewer,rank,&message_count);CHKERRQ(ierr); 1229 ierr = MPI_Send(&nz,1,MPIU_INT,0,tag,PetscObjectComm((PetscObject)mat));CHKERRQ(ierr); 1230 ierr = MPI_Send(column_values,nz,MPIU_SCALAR,0,tag,PetscObjectComm((PetscObject)mat));CHKERRQ(ierr); 1231 ierr = PetscViewerFlowControlEndWorker(viewer,&message_count);CHKERRQ(ierr); 1232 } 1233 ierr = PetscFree(column_values);CHKERRQ(ierr); 1234 1235 ierr = PetscViewerBinaryGetInfoPointer(viewer,&file);CHKERRQ(ierr); 1236 if (file) { 1237 fprintf(file,"-matload_block_size %d\n",(int)mat->rmap->bs); 1238 } 1239 PetscFunctionReturn(0); 1240 } 1241 1242 #undef __FUNCT__ 1243 #define __FUNCT__ "MatView_MPIBAIJ" 1244 PetscErrorCode MatView_MPIBAIJ(Mat mat,PetscViewer viewer) 1245 { 1246 PetscErrorCode ierr; 1247 PetscBool iascii,isdraw,issocket,isbinary; 1248 1249 PetscFunctionBegin; 1250 ierr = PetscObjectTypeCompare((PetscObject)viewer,PETSCVIEWERASCII,&iascii);CHKERRQ(ierr); 1251 ierr = PetscObjectTypeCompare((PetscObject)viewer,PETSCVIEWERDRAW,&isdraw);CHKERRQ(ierr); 1252 ierr = PetscObjectTypeCompare((PetscObject)viewer,PETSCVIEWERSOCKET,&issocket);CHKERRQ(ierr); 1253 ierr = PetscObjectTypeCompare((PetscObject)viewer,PETSCVIEWERBINARY,&isbinary);CHKERRQ(ierr); 1254 if (iascii || isdraw || issocket) { 1255 ierr = MatView_MPIBAIJ_ASCIIorDraworSocket(mat,viewer);CHKERRQ(ierr); 1256 } else if (isbinary) { 1257 ierr = MatView_MPIBAIJ_Binary(mat,viewer);CHKERRQ(ierr); 1258 } 1259 PetscFunctionReturn(0); 1260 } 1261 1262 #undef __FUNCT__ 1263 #define __FUNCT__ "MatDestroy_MPIBAIJ" 1264 PetscErrorCode MatDestroy_MPIBAIJ(Mat mat) 1265 { 1266 Mat_MPIBAIJ *baij = (Mat_MPIBAIJ*)mat->data; 1267 PetscErrorCode ierr; 1268 1269 PetscFunctionBegin; 1270 #if defined(PETSC_USE_LOG) 1271 PetscLogObjectState((PetscObject)mat,"Rows=%D,Cols=%D",mat->rmap->N,mat->cmap->N); 1272 #endif 1273 ierr = MatStashDestroy_Private(&mat->stash);CHKERRQ(ierr); 1274 ierr = MatStashDestroy_Private(&mat->bstash);CHKERRQ(ierr); 1275 ierr = MatDestroy(&baij->A);CHKERRQ(ierr); 1276 ierr = MatDestroy(&baij->B);CHKERRQ(ierr); 1277 #if defined(PETSC_USE_CTABLE) 1278 ierr = PetscTableDestroy(&baij->colmap);CHKERRQ(ierr); 1279 #else 1280 ierr = PetscFree(baij->colmap);CHKERRQ(ierr); 1281 #endif 1282 ierr = PetscFree(baij->garray);CHKERRQ(ierr); 1283 ierr = VecDestroy(&baij->lvec);CHKERRQ(ierr); 1284 ierr = VecScatterDestroy(&baij->Mvctx);CHKERRQ(ierr); 1285 ierr = PetscFree2(baij->rowvalues,baij->rowindices);CHKERRQ(ierr); 1286 ierr = PetscFree(baij->barray);CHKERRQ(ierr); 1287 ierr = PetscFree2(baij->hd,baij->ht);CHKERRQ(ierr); 1288 ierr = PetscFree(baij->rangebs);CHKERRQ(ierr); 1289 ierr = PetscFree(mat->data);CHKERRQ(ierr); 1290 1291 ierr = PetscObjectChangeTypeName((PetscObject)mat,0);CHKERRQ(ierr); 1292 ierr = PetscObjectComposeFunction((PetscObject)mat,"MatStoreValues_C",NULL);CHKERRQ(ierr); 1293 ierr = PetscObjectComposeFunction((PetscObject)mat,"MatRetrieveValues_C",NULL);CHKERRQ(ierr); 1294 ierr = PetscObjectComposeFunction((PetscObject)mat,"MatGetDiagonalBlock_C",NULL);CHKERRQ(ierr); 1295 ierr = PetscObjectComposeFunction((PetscObject)mat,"MatMPIBAIJSetPreallocation_C",NULL);CHKERRQ(ierr); 1296 ierr = PetscObjectComposeFunction((PetscObject)mat,"MatMPIBAIJSetPreallocationCSR_C",NULL);CHKERRQ(ierr); 1297 ierr = PetscObjectComposeFunction((PetscObject)mat,"MatDiagonalScaleLocal_C",NULL);CHKERRQ(ierr); 1298 ierr = PetscObjectComposeFunction((PetscObject)mat,"MatSetHashTableFactor_C",NULL);CHKERRQ(ierr); 1299 ierr = PetscObjectComposeFunction((PetscObject)mat,"MatConvert_mpibaij_mpisbaij_C",NULL);CHKERRQ(ierr); 1300 ierr = PetscObjectComposeFunction((PetscObject)mat,"MatConvert_mpibaij_mpibstrm_C",NULL);CHKERRQ(ierr); 1301 PetscFunctionReturn(0); 1302 } 1303 1304 #undef __FUNCT__ 1305 #define __FUNCT__ "MatMult_MPIBAIJ" 1306 PetscErrorCode MatMult_MPIBAIJ(Mat A,Vec xx,Vec yy) 1307 { 1308 Mat_MPIBAIJ *a = (Mat_MPIBAIJ*)A->data; 1309 PetscErrorCode ierr; 1310 PetscInt nt; 1311 1312 PetscFunctionBegin; 1313 ierr = VecGetLocalSize(xx,&nt);CHKERRQ(ierr); 1314 if (nt != A->cmap->n) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_SIZ,"Incompatible partition of A and xx"); 1315 ierr = VecGetLocalSize(yy,&nt);CHKERRQ(ierr); 1316 if (nt != A->rmap->n) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_SIZ,"Incompatible parition of A and yy"); 1317 ierr = VecScatterBegin(a->Mvctx,xx,a->lvec,INSERT_VALUES,SCATTER_FORWARD);CHKERRQ(ierr); 1318 ierr = (*a->A->ops->mult)(a->A,xx,yy);CHKERRQ(ierr); 1319 ierr = VecScatterEnd(a->Mvctx,xx,a->lvec,INSERT_VALUES,SCATTER_FORWARD);CHKERRQ(ierr); 1320 ierr = (*a->B->ops->multadd)(a->B,a->lvec,yy,yy);CHKERRQ(ierr); 1321 PetscFunctionReturn(0); 1322 } 1323 1324 #undef __FUNCT__ 1325 #define __FUNCT__ "MatMultAdd_MPIBAIJ" 1326 PetscErrorCode MatMultAdd_MPIBAIJ(Mat A,Vec xx,Vec yy,Vec zz) 1327 { 1328 Mat_MPIBAIJ *a = (Mat_MPIBAIJ*)A->data; 1329 PetscErrorCode ierr; 1330 1331 PetscFunctionBegin; 1332 ierr = VecScatterBegin(a->Mvctx,xx,a->lvec,INSERT_VALUES,SCATTER_FORWARD);CHKERRQ(ierr); 1333 ierr = (*a->A->ops->multadd)(a->A,xx,yy,zz);CHKERRQ(ierr); 1334 ierr = VecScatterEnd(a->Mvctx,xx,a->lvec,INSERT_VALUES,SCATTER_FORWARD);CHKERRQ(ierr); 1335 ierr = (*a->B->ops->multadd)(a->B,a->lvec,zz,zz);CHKERRQ(ierr); 1336 PetscFunctionReturn(0); 1337 } 1338 1339 #undef __FUNCT__ 1340 #define __FUNCT__ "MatMultTranspose_MPIBAIJ" 1341 PetscErrorCode MatMultTranspose_MPIBAIJ(Mat A,Vec xx,Vec yy) 1342 { 1343 Mat_MPIBAIJ *a = (Mat_MPIBAIJ*)A->data; 1344 PetscErrorCode ierr; 1345 PetscBool merged; 1346 1347 PetscFunctionBegin; 1348 ierr = VecScatterGetMerged(a->Mvctx,&merged);CHKERRQ(ierr); 1349 /* do nondiagonal part */ 1350 ierr = (*a->B->ops->multtranspose)(a->B,xx,a->lvec);CHKERRQ(ierr); 1351 if (!merged) { 1352 /* send it on its way */ 1353 ierr = VecScatterBegin(a->Mvctx,a->lvec,yy,ADD_VALUES,SCATTER_REVERSE);CHKERRQ(ierr); 1354 /* do local part */ 1355 ierr = (*a->A->ops->multtranspose)(a->A,xx,yy);CHKERRQ(ierr); 1356 /* receive remote parts: note this assumes the values are not actually */ 1357 /* inserted in yy until the next line */ 1358 ierr = VecScatterEnd(a->Mvctx,a->lvec,yy,ADD_VALUES,SCATTER_REVERSE);CHKERRQ(ierr); 1359 } else { 1360 /* do local part */ 1361 ierr = (*a->A->ops->multtranspose)(a->A,xx,yy);CHKERRQ(ierr); 1362 /* send it on its way */ 1363 ierr = VecScatterBegin(a->Mvctx,a->lvec,yy,ADD_VALUES,SCATTER_REVERSE);CHKERRQ(ierr); 1364 /* values actually were received in the Begin() but we need to call this nop */ 1365 ierr = VecScatterEnd(a->Mvctx,a->lvec,yy,ADD_VALUES,SCATTER_REVERSE);CHKERRQ(ierr); 1366 } 1367 PetscFunctionReturn(0); 1368 } 1369 1370 #undef __FUNCT__ 1371 #define __FUNCT__ "MatMultTransposeAdd_MPIBAIJ" 1372 PetscErrorCode MatMultTransposeAdd_MPIBAIJ(Mat A,Vec xx,Vec yy,Vec zz) 1373 { 1374 Mat_MPIBAIJ *a = (Mat_MPIBAIJ*)A->data; 1375 PetscErrorCode ierr; 1376 1377 PetscFunctionBegin; 1378 /* do nondiagonal part */ 1379 ierr = (*a->B->ops->multtranspose)(a->B,xx,a->lvec);CHKERRQ(ierr); 1380 /* send it on its way */ 1381 ierr = VecScatterBegin(a->Mvctx,a->lvec,zz,ADD_VALUES,SCATTER_REVERSE);CHKERRQ(ierr); 1382 /* do local part */ 1383 ierr = (*a->A->ops->multtransposeadd)(a->A,xx,yy,zz);CHKERRQ(ierr); 1384 /* receive remote parts: note this assumes the values are not actually */ 1385 /* inserted in yy until the next line, which is true for my implementation*/ 1386 /* but is not perhaps always true. */ 1387 ierr = VecScatterEnd(a->Mvctx,a->lvec,zz,ADD_VALUES,SCATTER_REVERSE);CHKERRQ(ierr); 1388 PetscFunctionReturn(0); 1389 } 1390 1391 /* 1392 This only works correctly for square matrices where the subblock A->A is the 1393 diagonal block 1394 */ 1395 #undef __FUNCT__ 1396 #define __FUNCT__ "MatGetDiagonal_MPIBAIJ" 1397 PetscErrorCode MatGetDiagonal_MPIBAIJ(Mat A,Vec v) 1398 { 1399 Mat_MPIBAIJ *a = (Mat_MPIBAIJ*)A->data; 1400 PetscErrorCode ierr; 1401 1402 PetscFunctionBegin; 1403 if (A->rmap->N != A->cmap->N) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_SUP,"Supports only square matrix where A->A is diag block"); 1404 ierr = MatGetDiagonal(a->A,v);CHKERRQ(ierr); 1405 PetscFunctionReturn(0); 1406 } 1407 1408 #undef __FUNCT__ 1409 #define __FUNCT__ "MatScale_MPIBAIJ" 1410 PetscErrorCode MatScale_MPIBAIJ(Mat A,PetscScalar aa) 1411 { 1412 Mat_MPIBAIJ *a = (Mat_MPIBAIJ*)A->data; 1413 PetscErrorCode ierr; 1414 1415 PetscFunctionBegin; 1416 ierr = MatScale(a->A,aa);CHKERRQ(ierr); 1417 ierr = MatScale(a->B,aa);CHKERRQ(ierr); 1418 PetscFunctionReturn(0); 1419 } 1420 1421 #undef __FUNCT__ 1422 #define __FUNCT__ "MatGetRow_MPIBAIJ" 1423 PetscErrorCode MatGetRow_MPIBAIJ(Mat matin,PetscInt row,PetscInt *nz,PetscInt **idx,PetscScalar **v) 1424 { 1425 Mat_MPIBAIJ *mat = (Mat_MPIBAIJ*)matin->data; 1426 PetscScalar *vworkA,*vworkB,**pvA,**pvB,*v_p; 1427 PetscErrorCode ierr; 1428 PetscInt bs = matin->rmap->bs,bs2 = mat->bs2,i,*cworkA,*cworkB,**pcA,**pcB; 1429 PetscInt nztot,nzA,nzB,lrow,brstart = matin->rmap->rstart,brend = matin->rmap->rend; 1430 PetscInt *cmap,*idx_p,cstart = mat->cstartbs; 1431 1432 PetscFunctionBegin; 1433 if (row < brstart || row >= brend) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_SUP,"Only local rows"); 1434 if (mat->getrowactive) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_WRONGSTATE,"Already active"); 1435 mat->getrowactive = PETSC_TRUE; 1436 1437 if (!mat->rowvalues && (idx || v)) { 1438 /* 1439 allocate enough space to hold information from the longest row. 1440 */ 1441 Mat_SeqBAIJ *Aa = (Mat_SeqBAIJ*)mat->A->data,*Ba = (Mat_SeqBAIJ*)mat->B->data; 1442 PetscInt max = 1,mbs = mat->mbs,tmp; 1443 for (i=0; i<mbs; i++) { 1444 tmp = Aa->i[i+1] - Aa->i[i] + Ba->i[i+1] - Ba->i[i]; 1445 if (max < tmp) max = tmp; 1446 } 1447 ierr = PetscMalloc2(max*bs2,&mat->rowvalues,max*bs2,&mat->rowindices);CHKERRQ(ierr); 1448 } 1449 lrow = row - brstart; 1450 1451 pvA = &vworkA; pcA = &cworkA; pvB = &vworkB; pcB = &cworkB; 1452 if (!v) {pvA = 0; pvB = 0;} 1453 if (!idx) {pcA = 0; if (!v) pcB = 0;} 1454 ierr = (*mat->A->ops->getrow)(mat->A,lrow,&nzA,pcA,pvA);CHKERRQ(ierr); 1455 ierr = (*mat->B->ops->getrow)(mat->B,lrow,&nzB,pcB,pvB);CHKERRQ(ierr); 1456 nztot = nzA + nzB; 1457 1458 cmap = mat->garray; 1459 if (v || idx) { 1460 if (nztot) { 1461 /* Sort by increasing column numbers, assuming A and B already sorted */ 1462 PetscInt imark = -1; 1463 if (v) { 1464 *v = v_p = mat->rowvalues; 1465 for (i=0; i<nzB; i++) { 1466 if (cmap[cworkB[i]/bs] < cstart) v_p[i] = vworkB[i]; 1467 else break; 1468 } 1469 imark = i; 1470 for (i=0; i<nzA; i++) v_p[imark+i] = vworkA[i]; 1471 for (i=imark; i<nzB; i++) v_p[nzA+i] = vworkB[i]; 1472 } 1473 if (idx) { 1474 *idx = idx_p = mat->rowindices; 1475 if (imark > -1) { 1476 for (i=0; i<imark; i++) { 1477 idx_p[i] = cmap[cworkB[i]/bs]*bs + cworkB[i]%bs; 1478 } 1479 } else { 1480 for (i=0; i<nzB; i++) { 1481 if (cmap[cworkB[i]/bs] < cstart) idx_p[i] = cmap[cworkB[i]/bs]*bs + cworkB[i]%bs; 1482 else break; 1483 } 1484 imark = i; 1485 } 1486 for (i=0; i<nzA; i++) idx_p[imark+i] = cstart*bs + cworkA[i]; 1487 for (i=imark; i<nzB; i++) idx_p[nzA+i] = cmap[cworkB[i]/bs]*bs + cworkB[i]%bs ; 1488 } 1489 } else { 1490 if (idx) *idx = 0; 1491 if (v) *v = 0; 1492 } 1493 } 1494 *nz = nztot; 1495 ierr = (*mat->A->ops->restorerow)(mat->A,lrow,&nzA,pcA,pvA);CHKERRQ(ierr); 1496 ierr = (*mat->B->ops->restorerow)(mat->B,lrow,&nzB,pcB,pvB);CHKERRQ(ierr); 1497 PetscFunctionReturn(0); 1498 } 1499 1500 #undef __FUNCT__ 1501 #define __FUNCT__ "MatRestoreRow_MPIBAIJ" 1502 PetscErrorCode MatRestoreRow_MPIBAIJ(Mat mat,PetscInt row,PetscInt *nz,PetscInt **idx,PetscScalar **v) 1503 { 1504 Mat_MPIBAIJ *baij = (Mat_MPIBAIJ*)mat->data; 1505 1506 PetscFunctionBegin; 1507 if (!baij->getrowactive) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_WRONGSTATE,"MatGetRow not called"); 1508 baij->getrowactive = PETSC_FALSE; 1509 PetscFunctionReturn(0); 1510 } 1511 1512 #undef __FUNCT__ 1513 #define __FUNCT__ "MatZeroEntries_MPIBAIJ" 1514 PetscErrorCode MatZeroEntries_MPIBAIJ(Mat A) 1515 { 1516 Mat_MPIBAIJ *l = (Mat_MPIBAIJ*)A->data; 1517 PetscErrorCode ierr; 1518 1519 PetscFunctionBegin; 1520 ierr = MatZeroEntries(l->A);CHKERRQ(ierr); 1521 ierr = MatZeroEntries(l->B);CHKERRQ(ierr); 1522 PetscFunctionReturn(0); 1523 } 1524 1525 #undef __FUNCT__ 1526 #define __FUNCT__ "MatGetInfo_MPIBAIJ" 1527 PetscErrorCode MatGetInfo_MPIBAIJ(Mat matin,MatInfoType flag,MatInfo *info) 1528 { 1529 Mat_MPIBAIJ *a = (Mat_MPIBAIJ*)matin->data; 1530 Mat A = a->A,B = a->B; 1531 PetscErrorCode ierr; 1532 PetscReal isend[5],irecv[5]; 1533 1534 PetscFunctionBegin; 1535 info->block_size = (PetscReal)matin->rmap->bs; 1536 1537 ierr = MatGetInfo(A,MAT_LOCAL,info);CHKERRQ(ierr); 1538 1539 isend[0] = info->nz_used; isend[1] = info->nz_allocated; isend[2] = info->nz_unneeded; 1540 isend[3] = info->memory; isend[4] = info->mallocs; 1541 1542 ierr = MatGetInfo(B,MAT_LOCAL,info);CHKERRQ(ierr); 1543 1544 isend[0] += info->nz_used; isend[1] += info->nz_allocated; isend[2] += info->nz_unneeded; 1545 isend[3] += info->memory; isend[4] += info->mallocs; 1546 1547 if (flag == MAT_LOCAL) { 1548 info->nz_used = isend[0]; 1549 info->nz_allocated = isend[1]; 1550 info->nz_unneeded = isend[2]; 1551 info->memory = isend[3]; 1552 info->mallocs = isend[4]; 1553 } else if (flag == MAT_GLOBAL_MAX) { 1554 ierr = MPI_Allreduce(isend,irecv,5,MPIU_REAL,MPIU_MAX,PetscObjectComm((PetscObject)matin));CHKERRQ(ierr); 1555 1556 info->nz_used = irecv[0]; 1557 info->nz_allocated = irecv[1]; 1558 info->nz_unneeded = irecv[2]; 1559 info->memory = irecv[3]; 1560 info->mallocs = irecv[4]; 1561 } else if (flag == MAT_GLOBAL_SUM) { 1562 ierr = MPI_Allreduce(isend,irecv,5,MPIU_REAL,MPIU_SUM,PetscObjectComm((PetscObject)matin));CHKERRQ(ierr); 1563 1564 info->nz_used = irecv[0]; 1565 info->nz_allocated = irecv[1]; 1566 info->nz_unneeded = irecv[2]; 1567 info->memory = irecv[3]; 1568 info->mallocs = irecv[4]; 1569 } else SETERRQ1(PetscObjectComm((PetscObject)matin),PETSC_ERR_ARG_WRONG,"Unknown MatInfoType argument %d",(int)flag); 1570 info->fill_ratio_given = 0; /* no parallel LU/ILU/Cholesky */ 1571 info->fill_ratio_needed = 0; 1572 info->factor_mallocs = 0; 1573 PetscFunctionReturn(0); 1574 } 1575 1576 #undef __FUNCT__ 1577 #define __FUNCT__ "MatSetOption_MPIBAIJ" 1578 PetscErrorCode MatSetOption_MPIBAIJ(Mat A,MatOption op,PetscBool flg) 1579 { 1580 Mat_MPIBAIJ *a = (Mat_MPIBAIJ*)A->data; 1581 PetscErrorCode ierr; 1582 1583 PetscFunctionBegin; 1584 switch (op) { 1585 case MAT_NEW_NONZERO_LOCATIONS: 1586 case MAT_NEW_NONZERO_ALLOCATION_ERR: 1587 case MAT_UNUSED_NONZERO_LOCATION_ERR: 1588 case MAT_KEEP_NONZERO_PATTERN: 1589 case MAT_NEW_NONZERO_LOCATION_ERR: 1590 ierr = MatSetOption(a->A,op,flg);CHKERRQ(ierr); 1591 ierr = MatSetOption(a->B,op,flg);CHKERRQ(ierr); 1592 break; 1593 case MAT_ROW_ORIENTED: 1594 a->roworiented = flg; 1595 1596 ierr = MatSetOption(a->A,op,flg);CHKERRQ(ierr); 1597 ierr = MatSetOption(a->B,op,flg);CHKERRQ(ierr); 1598 break; 1599 case MAT_NEW_DIAGONALS: 1600 ierr = PetscInfo1(A,"Option %s ignored\n",MatOptions[op]);CHKERRQ(ierr); 1601 break; 1602 case MAT_IGNORE_OFF_PROC_ENTRIES: 1603 a->donotstash = flg; 1604 break; 1605 case MAT_USE_HASH_TABLE: 1606 a->ht_flag = flg; 1607 break; 1608 case MAT_SYMMETRIC: 1609 case MAT_STRUCTURALLY_SYMMETRIC: 1610 case MAT_HERMITIAN: 1611 case MAT_SYMMETRY_ETERNAL: 1612 ierr = MatSetOption(a->A,op,flg);CHKERRQ(ierr); 1613 break; 1614 default: 1615 SETERRQ1(PetscObjectComm((PetscObject)A),PETSC_ERR_SUP,"unknown option %d",op); 1616 } 1617 PetscFunctionReturn(0); 1618 } 1619 1620 #undef __FUNCT__ 1621 #define __FUNCT__ "MatTranspose_MPIBAIJ" 1622 PetscErrorCode MatTranspose_MPIBAIJ(Mat A,MatReuse reuse,Mat *matout) 1623 { 1624 Mat_MPIBAIJ *baij = (Mat_MPIBAIJ*)A->data; 1625 Mat_SeqBAIJ *Aloc; 1626 Mat B; 1627 PetscErrorCode ierr; 1628 PetscInt M =A->rmap->N,N=A->cmap->N,*ai,*aj,i,*rvals,j,k,col; 1629 PetscInt bs=A->rmap->bs,mbs=baij->mbs; 1630 MatScalar *a; 1631 1632 PetscFunctionBegin; 1633 if (reuse == MAT_REUSE_MATRIX && A == *matout && M != N) SETERRQ(PetscObjectComm((PetscObject)A),PETSC_ERR_ARG_SIZ,"Square matrix only for in-place"); 1634 if (reuse == MAT_INITIAL_MATRIX || *matout == A) { 1635 ierr = MatCreate(PetscObjectComm((PetscObject)A),&B);CHKERRQ(ierr); 1636 ierr = MatSetSizes(B,A->cmap->n,A->rmap->n,N,M);CHKERRQ(ierr); 1637 ierr = MatSetType(B,((PetscObject)A)->type_name);CHKERRQ(ierr); 1638 /* Do not know preallocation information, but must set block size */ 1639 ierr = MatMPIBAIJSetPreallocation(B,A->rmap->bs,PETSC_DECIDE,NULL,PETSC_DECIDE,NULL);CHKERRQ(ierr); 1640 } else { 1641 B = *matout; 1642 } 1643 1644 /* copy over the A part */ 1645 Aloc = (Mat_SeqBAIJ*)baij->A->data; 1646 ai = Aloc->i; aj = Aloc->j; a = Aloc->a; 1647 ierr = PetscMalloc1(bs,&rvals);CHKERRQ(ierr); 1648 1649 for (i=0; i<mbs; i++) { 1650 rvals[0] = bs*(baij->rstartbs + i); 1651 for (j=1; j<bs; j++) rvals[j] = rvals[j-1] + 1; 1652 for (j=ai[i]; j<ai[i+1]; j++) { 1653 col = (baij->cstartbs+aj[j])*bs; 1654 for (k=0; k<bs; k++) { 1655 ierr = MatSetValues_MPIBAIJ(B,1,&col,bs,rvals,a,INSERT_VALUES);CHKERRQ(ierr); 1656 1657 col++; a += bs; 1658 } 1659 } 1660 } 1661 /* copy over the B part */ 1662 Aloc = (Mat_SeqBAIJ*)baij->B->data; 1663 ai = Aloc->i; aj = Aloc->j; a = Aloc->a; 1664 for (i=0; i<mbs; i++) { 1665 rvals[0] = bs*(baij->rstartbs + i); 1666 for (j=1; j<bs; j++) rvals[j] = rvals[j-1] + 1; 1667 for (j=ai[i]; j<ai[i+1]; j++) { 1668 col = baij->garray[aj[j]]*bs; 1669 for (k=0; k<bs; k++) { 1670 ierr = MatSetValues_MPIBAIJ(B,1,&col,bs,rvals,a,INSERT_VALUES);CHKERRQ(ierr); 1671 col++; 1672 a += bs; 1673 } 1674 } 1675 } 1676 ierr = PetscFree(rvals);CHKERRQ(ierr); 1677 ierr = MatAssemblyBegin(B,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 1678 ierr = MatAssemblyEnd(B,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 1679 1680 if (reuse == MAT_INITIAL_MATRIX || *matout != A) *matout = B; 1681 else { 1682 ierr = MatHeaderMerge(A,B);CHKERRQ(ierr); 1683 } 1684 PetscFunctionReturn(0); 1685 } 1686 1687 #undef __FUNCT__ 1688 #define __FUNCT__ "MatDiagonalScale_MPIBAIJ" 1689 PetscErrorCode MatDiagonalScale_MPIBAIJ(Mat mat,Vec ll,Vec rr) 1690 { 1691 Mat_MPIBAIJ *baij = (Mat_MPIBAIJ*)mat->data; 1692 Mat a = baij->A,b = baij->B; 1693 PetscErrorCode ierr; 1694 PetscInt s1,s2,s3; 1695 1696 PetscFunctionBegin; 1697 ierr = MatGetLocalSize(mat,&s2,&s3);CHKERRQ(ierr); 1698 if (rr) { 1699 ierr = VecGetLocalSize(rr,&s1);CHKERRQ(ierr); 1700 if (s1!=s3) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_SIZ,"right vector non-conforming local size"); 1701 /* Overlap communication with computation. */ 1702 ierr = VecScatterBegin(baij->Mvctx,rr,baij->lvec,INSERT_VALUES,SCATTER_FORWARD);CHKERRQ(ierr); 1703 } 1704 if (ll) { 1705 ierr = VecGetLocalSize(ll,&s1);CHKERRQ(ierr); 1706 if (s1!=s2) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_SIZ,"left vector non-conforming local size"); 1707 ierr = (*b->ops->diagonalscale)(b,ll,NULL);CHKERRQ(ierr); 1708 } 1709 /* scale the diagonal block */ 1710 ierr = (*a->ops->diagonalscale)(a,ll,rr);CHKERRQ(ierr); 1711 1712 if (rr) { 1713 /* Do a scatter end and then right scale the off-diagonal block */ 1714 ierr = VecScatterEnd(baij->Mvctx,rr,baij->lvec,INSERT_VALUES,SCATTER_FORWARD);CHKERRQ(ierr); 1715 ierr = (*b->ops->diagonalscale)(b,NULL,baij->lvec);CHKERRQ(ierr); 1716 } 1717 PetscFunctionReturn(0); 1718 } 1719 1720 #undef __FUNCT__ 1721 #define __FUNCT__ "MatZeroRows_MPIBAIJ" 1722 PetscErrorCode MatZeroRows_MPIBAIJ(Mat A,PetscInt N,const PetscInt rows[],PetscScalar diag,Vec x,Vec b) 1723 { 1724 Mat_MPIBAIJ *l = (Mat_MPIBAIJ *) A->data; 1725 PetscInt *owners = A->rmap->range; 1726 PetscInt n = A->rmap->n; 1727 PetscSF sf; 1728 PetscInt *lrows; 1729 PetscSFNode *rrows; 1730 PetscInt r, p = 0, len = 0; 1731 PetscErrorCode ierr; 1732 1733 PetscFunctionBegin; 1734 /* Create SF where leaves are input rows and roots are owned rows */ 1735 ierr = PetscMalloc1(n, &lrows);CHKERRQ(ierr); 1736 for (r = 0; r < n; ++r) lrows[r] = -1; 1737 if (!A->nooffproczerorows) {ierr = PetscMalloc1(N, &rrows);CHKERRQ(ierr);} 1738 for (r = 0; r < N; ++r) { 1739 const PetscInt idx = rows[r]; 1740 if (idx < 0 || A->rmap->N <= idx) SETERRQ2(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"Row %D out of range [0,%D)",idx,A->rmap->N); 1741 if (idx < owners[p] || owners[p+1] <= idx) { /* short-circuit the search if the last p owns this row too */ 1742 ierr = PetscLayoutFindOwner(A->rmap,idx,&p);CHKERRQ(ierr); 1743 } 1744 if (A->nooffproczerorows) { 1745 if (p != l->rank) SETERRQ2(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"MAT_NO_OFF_PROC_ZERO_ROWS set, but row %D is not owned by rank %d",idx,l->rank); 1746 lrows[len++] = idx - owners[p]; 1747 } else { 1748 rrows[r].rank = p; 1749 rrows[r].index = rows[r] - owners[p]; 1750 } 1751 } 1752 if (!A->nooffproczerorows) { 1753 ierr = PetscSFCreate(PetscObjectComm((PetscObject) A), &sf);CHKERRQ(ierr); 1754 ierr = PetscSFSetGraph(sf, n, N, NULL, PETSC_OWN_POINTER, rrows, PETSC_OWN_POINTER);CHKERRQ(ierr); 1755 /* Collect flags for rows to be zeroed */ 1756 ierr = PetscSFReduceBegin(sf, MPIU_INT, (PetscInt *) rows, lrows, MPI_LOR);CHKERRQ(ierr); 1757 ierr = PetscSFReduceEnd(sf, MPIU_INT, (PetscInt *) rows, lrows, MPI_LOR);CHKERRQ(ierr); 1758 ierr = PetscSFDestroy(&sf);CHKERRQ(ierr); 1759 /* Compress and put in row numbers */ 1760 for (r = 0; r < n; ++r) if (lrows[r] >= 0) lrows[len++] = r; 1761 } 1762 /* fix right hand side if needed */ 1763 if (x && b) { 1764 const PetscScalar *xx; 1765 PetscScalar *bb; 1766 1767 ierr = VecGetArrayRead(x,&xx);CHKERRQ(ierr); 1768 ierr = VecGetArray(b,&bb);CHKERRQ(ierr); 1769 for (r = 0; r < len; ++r) bb[lrows[r]] = diag*xx[lrows[r]]; 1770 ierr = VecRestoreArrayRead(x,&xx);CHKERRQ(ierr); 1771 ierr = VecRestoreArray(b,&bb);CHKERRQ(ierr); 1772 } 1773 1774 /* actually zap the local rows */ 1775 /* 1776 Zero the required rows. If the "diagonal block" of the matrix 1777 is square and the user wishes to set the diagonal we use separate 1778 code so that MatSetValues() is not called for each diagonal allocating 1779 new memory, thus calling lots of mallocs and slowing things down. 1780 1781 */ 1782 /* must zero l->B before l->A because the (diag) case below may put values into l->B*/ 1783 ierr = MatZeroRows_SeqBAIJ(l->B,len,lrows,0.0,NULL,NULL);CHKERRQ(ierr); 1784 if ((diag != 0.0) && (l->A->rmap->N == l->A->cmap->N)) { 1785 ierr = MatZeroRows_SeqBAIJ(l->A,len,lrows,diag,NULL,NULL);CHKERRQ(ierr); 1786 } else if (diag != 0.0) { 1787 ierr = MatZeroRows_SeqBAIJ(l->A,len,lrows,0.0,0,0);CHKERRQ(ierr); 1788 if (((Mat_SeqBAIJ*)l->A->data)->nonew) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_SUP,"MatZeroRows() on rectangular matrices cannot be used with the Mat options \n\ 1789 MAT_NEW_NONZERO_LOCATIONS,MAT_NEW_NONZERO_LOCATION_ERR,MAT_NEW_NONZERO_ALLOCATION_ERR"); 1790 for (r = 0; r < len; ++r) { 1791 const PetscInt row = lrows[r] + A->rmap->rstart; 1792 ierr = MatSetValues(A,1,&row,1,&row,&diag,INSERT_VALUES);CHKERRQ(ierr); 1793 } 1794 ierr = MatAssemblyBegin(A,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 1795 ierr = MatAssemblyEnd(A,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 1796 } else { 1797 ierr = MatZeroRows_SeqBAIJ(l->A,len,lrows,0.0,NULL,NULL);CHKERRQ(ierr); 1798 } 1799 ierr = PetscFree(lrows);CHKERRQ(ierr); 1800 1801 /* only change matrix nonzero state if pattern was allowed to be changed */ 1802 if (!((Mat_SeqBAIJ*)(l->A->data))->keepnonzeropattern) { 1803 PetscObjectState state = l->A->nonzerostate + l->B->nonzerostate; 1804 ierr = MPI_Allreduce(&state,&A->nonzerostate,1,MPIU_INT64,MPI_SUM,PetscObjectComm((PetscObject)A));CHKERRQ(ierr); 1805 } 1806 PetscFunctionReturn(0); 1807 } 1808 1809 #undef __FUNCT__ 1810 #define __FUNCT__ "MatZeroRowsColumns_MPIBAIJ" 1811 PetscErrorCode MatZeroRowsColumns_MPIBAIJ(Mat A,PetscInt N,const PetscInt rows[],PetscScalar diag,Vec x,Vec b) 1812 { 1813 Mat_MPIBAIJ *l = (Mat_MPIBAIJ*)A->data; 1814 PetscErrorCode ierr; 1815 PetscMPIInt n = A->rmap->n; 1816 PetscInt i,j,k,r,p = 0,len = 0,row,col,count; 1817 PetscInt *lrows,*owners = A->rmap->range; 1818 PetscSFNode *rrows; 1819 PetscSF sf; 1820 const PetscScalar *xx; 1821 PetscScalar *bb,*mask; 1822 Vec xmask,lmask; 1823 Mat_SeqBAIJ *baij = (Mat_SeqBAIJ*)l->B->data; 1824 PetscInt bs = A->rmap->bs, bs2 = baij->bs2; 1825 PetscScalar *aa; 1826 1827 PetscFunctionBegin; 1828 /* Create SF where leaves are input rows and roots are owned rows */ 1829 ierr = PetscMalloc1(n, &lrows);CHKERRQ(ierr); 1830 for (r = 0; r < n; ++r) lrows[r] = -1; 1831 ierr = PetscMalloc1(N, &rrows);CHKERRQ(ierr); 1832 for (r = 0; r < N; ++r) { 1833 const PetscInt idx = rows[r]; 1834 if (idx < 0 || A->rmap->N <= idx) SETERRQ2(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"Row %D out of range [0,%D)",idx,A->rmap->N); 1835 if (idx < owners[p] || owners[p+1] <= idx) { /* short-circuit the search if the last p owns this row too */ 1836 ierr = PetscLayoutFindOwner(A->rmap,idx,&p);CHKERRQ(ierr); 1837 } 1838 rrows[r].rank = p; 1839 rrows[r].index = rows[r] - owners[p]; 1840 } 1841 ierr = PetscSFCreate(PetscObjectComm((PetscObject) A), &sf);CHKERRQ(ierr); 1842 ierr = PetscSFSetGraph(sf, n, N, NULL, PETSC_OWN_POINTER, rrows, PETSC_OWN_POINTER);CHKERRQ(ierr); 1843 /* Collect flags for rows to be zeroed */ 1844 ierr = PetscSFReduceBegin(sf, MPIU_INT, (PetscInt *) rows, lrows, MPI_LOR);CHKERRQ(ierr); 1845 ierr = PetscSFReduceEnd(sf, MPIU_INT, (PetscInt *) rows, lrows, MPI_LOR);CHKERRQ(ierr); 1846 ierr = PetscSFDestroy(&sf);CHKERRQ(ierr); 1847 /* Compress and put in row numbers */ 1848 for (r = 0; r < n; ++r) if (lrows[r] >= 0) lrows[len++] = r; 1849 /* zero diagonal part of matrix */ 1850 ierr = MatZeroRowsColumns(l->A,len,lrows,diag,x,b);CHKERRQ(ierr); 1851 /* handle off diagonal part of matrix */ 1852 ierr = MatCreateVecs(A,&xmask,NULL);CHKERRQ(ierr); 1853 ierr = VecDuplicate(l->lvec,&lmask);CHKERRQ(ierr); 1854 ierr = VecGetArray(xmask,&bb);CHKERRQ(ierr); 1855 for (i=0; i<len; i++) bb[lrows[i]] = 1; 1856 ierr = VecRestoreArray(xmask,&bb);CHKERRQ(ierr); 1857 ierr = VecScatterBegin(l->Mvctx,xmask,lmask,ADD_VALUES,SCATTER_FORWARD);CHKERRQ(ierr); 1858 ierr = VecScatterEnd(l->Mvctx,xmask,lmask,ADD_VALUES,SCATTER_FORWARD);CHKERRQ(ierr); 1859 ierr = VecDestroy(&xmask);CHKERRQ(ierr); 1860 if (x) { 1861 ierr = VecScatterBegin(l->Mvctx,x,l->lvec,INSERT_VALUES,SCATTER_FORWARD);CHKERRQ(ierr); 1862 ierr = VecScatterEnd(l->Mvctx,x,l->lvec,INSERT_VALUES,SCATTER_FORWARD);CHKERRQ(ierr); 1863 ierr = VecGetArrayRead(l->lvec,&xx);CHKERRQ(ierr); 1864 ierr = VecGetArray(b,&bb);CHKERRQ(ierr); 1865 } 1866 ierr = VecGetArray(lmask,&mask);CHKERRQ(ierr); 1867 /* remove zeroed rows of off diagonal matrix */ 1868 for (i = 0; i < len; ++i) { 1869 row = lrows[i]; 1870 count = (baij->i[row/bs +1] - baij->i[row/bs])*bs; 1871 aa = ((MatScalar*)(baij->a)) + baij->i[row/bs]*bs2 + (row%bs); 1872 for (k = 0; k < count; ++k) { 1873 aa[0] = 0.0; 1874 aa += bs; 1875 } 1876 } 1877 /* loop over all elements of off process part of matrix zeroing removed columns*/ 1878 for (i = 0; i < l->B->rmap->N; ++i) { 1879 row = i/bs; 1880 for (j = baij->i[row]; j < baij->i[row+1]; ++j) { 1881 for (k = 0; k < bs; ++k) { 1882 col = bs*baij->j[j] + k; 1883 if (PetscAbsScalar(mask[col])) { 1884 aa = ((MatScalar*)(baij->a)) + j*bs2 + (i%bs) + bs*k; 1885 if (b) bb[i] -= aa[0]*xx[col]; 1886 aa[0] = 0.0; 1887 } 1888 } 1889 } 1890 } 1891 if (x) { 1892 ierr = VecRestoreArray(b,&bb);CHKERRQ(ierr); 1893 ierr = VecRestoreArrayRead(l->lvec,&xx);CHKERRQ(ierr); 1894 } 1895 ierr = VecRestoreArray(lmask,&mask);CHKERRQ(ierr); 1896 ierr = VecDestroy(&lmask);CHKERRQ(ierr); 1897 ierr = PetscFree(lrows);CHKERRQ(ierr); 1898 1899 /* only change matrix nonzero state if pattern was allowed to be changed */ 1900 if (!((Mat_SeqBAIJ*)(l->A->data))->keepnonzeropattern) { 1901 PetscObjectState state = l->A->nonzerostate + l->B->nonzerostate; 1902 ierr = MPI_Allreduce(&state,&A->nonzerostate,1,MPIU_INT64,MPI_SUM,PetscObjectComm((PetscObject)A));CHKERRQ(ierr); 1903 } 1904 PetscFunctionReturn(0); 1905 } 1906 1907 #undef __FUNCT__ 1908 #define __FUNCT__ "MatSetUnfactored_MPIBAIJ" 1909 PetscErrorCode MatSetUnfactored_MPIBAIJ(Mat A) 1910 { 1911 Mat_MPIBAIJ *a = (Mat_MPIBAIJ*)A->data; 1912 PetscErrorCode ierr; 1913 1914 PetscFunctionBegin; 1915 ierr = MatSetUnfactored(a->A);CHKERRQ(ierr); 1916 PetscFunctionReturn(0); 1917 } 1918 1919 static PetscErrorCode MatDuplicate_MPIBAIJ(Mat,MatDuplicateOption,Mat*); 1920 1921 #undef __FUNCT__ 1922 #define __FUNCT__ "MatEqual_MPIBAIJ" 1923 PetscErrorCode MatEqual_MPIBAIJ(Mat A,Mat B,PetscBool *flag) 1924 { 1925 Mat_MPIBAIJ *matB = (Mat_MPIBAIJ*)B->data,*matA = (Mat_MPIBAIJ*)A->data; 1926 Mat a,b,c,d; 1927 PetscBool flg; 1928 PetscErrorCode ierr; 1929 1930 PetscFunctionBegin; 1931 a = matA->A; b = matA->B; 1932 c = matB->A; d = matB->B; 1933 1934 ierr = MatEqual(a,c,&flg);CHKERRQ(ierr); 1935 if (flg) { 1936 ierr = MatEqual(b,d,&flg);CHKERRQ(ierr); 1937 } 1938 ierr = MPI_Allreduce(&flg,flag,1,MPIU_BOOL,MPI_LAND,PetscObjectComm((PetscObject)A));CHKERRQ(ierr); 1939 PetscFunctionReturn(0); 1940 } 1941 1942 #undef __FUNCT__ 1943 #define __FUNCT__ "MatCopy_MPIBAIJ" 1944 PetscErrorCode MatCopy_MPIBAIJ(Mat A,Mat B,MatStructure str) 1945 { 1946 PetscErrorCode ierr; 1947 Mat_MPIBAIJ *a = (Mat_MPIBAIJ*)A->data; 1948 Mat_MPIBAIJ *b = (Mat_MPIBAIJ*)B->data; 1949 1950 PetscFunctionBegin; 1951 /* If the two matrices don't have the same copy implementation, they aren't compatible for fast copy. */ 1952 if ((str != SAME_NONZERO_PATTERN) || (A->ops->copy != B->ops->copy)) { 1953 ierr = MatCopy_Basic(A,B,str);CHKERRQ(ierr); 1954 } else { 1955 ierr = MatCopy(a->A,b->A,str);CHKERRQ(ierr); 1956 ierr = MatCopy(a->B,b->B,str);CHKERRQ(ierr); 1957 } 1958 PetscFunctionReturn(0); 1959 } 1960 1961 #undef __FUNCT__ 1962 #define __FUNCT__ "MatSetUp_MPIBAIJ" 1963 PetscErrorCode MatSetUp_MPIBAIJ(Mat A) 1964 { 1965 PetscErrorCode ierr; 1966 1967 PetscFunctionBegin; 1968 ierr = MatMPIBAIJSetPreallocation(A,A->rmap->bs,PETSC_DEFAULT,0,PETSC_DEFAULT,0);CHKERRQ(ierr); 1969 PetscFunctionReturn(0); 1970 } 1971 1972 #undef __FUNCT__ 1973 #define __FUNCT__ "MatAXPYGetPreallocation_MPIBAIJ" 1974 PetscErrorCode MatAXPYGetPreallocation_MPIBAIJ(Mat Y,const PetscInt *yltog,Mat X,const PetscInt *xltog,PetscInt *nnz) 1975 { 1976 PetscErrorCode ierr; 1977 PetscInt bs = Y->rmap->bs,m = Y->rmap->N/bs; 1978 Mat_SeqBAIJ *x = (Mat_SeqBAIJ*)X->data; 1979 Mat_SeqBAIJ *y = (Mat_SeqBAIJ*)Y->data; 1980 1981 PetscFunctionBegin; 1982 ierr = MatAXPYGetPreallocation_MPIX_private(m,x->i,x->j,xltog,y->i,y->j,yltog,nnz);CHKERRQ(ierr); 1983 PetscFunctionReturn(0); 1984 } 1985 1986 #undef __FUNCT__ 1987 #define __FUNCT__ "MatAXPY_MPIBAIJ" 1988 PetscErrorCode MatAXPY_MPIBAIJ(Mat Y,PetscScalar a,Mat X,MatStructure str) 1989 { 1990 PetscErrorCode ierr; 1991 Mat_MPIBAIJ *xx=(Mat_MPIBAIJ*)X->data,*yy=(Mat_MPIBAIJ*)Y->data; 1992 PetscBLASInt bnz,one=1; 1993 Mat_SeqBAIJ *x,*y; 1994 1995 PetscFunctionBegin; 1996 if (str == SAME_NONZERO_PATTERN) { 1997 PetscScalar alpha = a; 1998 x = (Mat_SeqBAIJ*)xx->A->data; 1999 y = (Mat_SeqBAIJ*)yy->A->data; 2000 ierr = PetscBLASIntCast(x->nz,&bnz);CHKERRQ(ierr); 2001 PetscStackCallBLAS("BLASaxpy",BLASaxpy_(&bnz,&alpha,x->a,&one,y->a,&one)); 2002 x = (Mat_SeqBAIJ*)xx->B->data; 2003 y = (Mat_SeqBAIJ*)yy->B->data; 2004 ierr = PetscBLASIntCast(x->nz,&bnz);CHKERRQ(ierr); 2005 PetscStackCallBLAS("BLASaxpy",BLASaxpy_(&bnz,&alpha,x->a,&one,y->a,&one)); 2006 ierr = PetscObjectStateIncrease((PetscObject)Y);CHKERRQ(ierr); 2007 } else { 2008 Mat B; 2009 PetscInt *nnz_d,*nnz_o,bs=Y->rmap->bs; 2010 ierr = PetscMalloc1(yy->A->rmap->N,&nnz_d);CHKERRQ(ierr); 2011 ierr = PetscMalloc1(yy->B->rmap->N,&nnz_o);CHKERRQ(ierr); 2012 ierr = MatCreate(PetscObjectComm((PetscObject)Y),&B);CHKERRQ(ierr); 2013 ierr = PetscObjectSetName((PetscObject)B,((PetscObject)Y)->name);CHKERRQ(ierr); 2014 ierr = MatSetSizes(B,Y->rmap->n,Y->cmap->n,Y->rmap->N,Y->cmap->N);CHKERRQ(ierr); 2015 ierr = MatSetBlockSizesFromMats(B,Y,Y);CHKERRQ(ierr); 2016 ierr = MatSetType(B,MATMPIBAIJ);CHKERRQ(ierr); 2017 ierr = MatAXPYGetPreallocation_SeqBAIJ(yy->A,xx->A,nnz_d);CHKERRQ(ierr); 2018 ierr = MatAXPYGetPreallocation_MPIBAIJ(yy->B,yy->garray,xx->B,xx->garray,nnz_o);CHKERRQ(ierr); 2019 ierr = MatMPIBAIJSetPreallocation(B,bs,0,nnz_d,0,nnz_o);CHKERRQ(ierr); 2020 /* MatAXPY_BasicWithPreallocation() for BAIJ matrix is much slower than AIJ, even for bs=1 ! */ 2021 ierr = MatAXPY_BasicWithPreallocation(B,Y,a,X,str);CHKERRQ(ierr); 2022 ierr = MatHeaderReplace(Y,B);CHKERRQ(ierr); 2023 ierr = PetscFree(nnz_d);CHKERRQ(ierr); 2024 ierr = PetscFree(nnz_o);CHKERRQ(ierr); 2025 } 2026 PetscFunctionReturn(0); 2027 } 2028 2029 #undef __FUNCT__ 2030 #define __FUNCT__ "MatRealPart_MPIBAIJ" 2031 PetscErrorCode MatRealPart_MPIBAIJ(Mat A) 2032 { 2033 Mat_MPIBAIJ *a = (Mat_MPIBAIJ*)A->data; 2034 PetscErrorCode ierr; 2035 2036 PetscFunctionBegin; 2037 ierr = MatRealPart(a->A);CHKERRQ(ierr); 2038 ierr = MatRealPart(a->B);CHKERRQ(ierr); 2039 PetscFunctionReturn(0); 2040 } 2041 2042 #undef __FUNCT__ 2043 #define __FUNCT__ "MatImaginaryPart_MPIBAIJ" 2044 PetscErrorCode MatImaginaryPart_MPIBAIJ(Mat A) 2045 { 2046 Mat_MPIBAIJ *a = (Mat_MPIBAIJ*)A->data; 2047 PetscErrorCode ierr; 2048 2049 PetscFunctionBegin; 2050 ierr = MatImaginaryPart(a->A);CHKERRQ(ierr); 2051 ierr = MatImaginaryPart(a->B);CHKERRQ(ierr); 2052 PetscFunctionReturn(0); 2053 } 2054 2055 #undef __FUNCT__ 2056 #define __FUNCT__ "MatGetSubMatrix_MPIBAIJ" 2057 PetscErrorCode MatGetSubMatrix_MPIBAIJ(Mat mat,IS isrow,IS iscol,MatReuse call,Mat *newmat) 2058 { 2059 PetscErrorCode ierr; 2060 IS iscol_local; 2061 PetscInt csize; 2062 2063 PetscFunctionBegin; 2064 ierr = ISGetLocalSize(iscol,&csize);CHKERRQ(ierr); 2065 if (call == MAT_REUSE_MATRIX) { 2066 ierr = PetscObjectQuery((PetscObject)*newmat,"ISAllGather",(PetscObject*)&iscol_local);CHKERRQ(ierr); 2067 if (!iscol_local) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_WRONGSTATE,"Submatrix passed in was not used before, cannot reuse"); 2068 } else { 2069 ierr = ISAllGather(iscol,&iscol_local);CHKERRQ(ierr); 2070 } 2071 ierr = MatGetSubMatrix_MPIBAIJ_Private(mat,isrow,iscol_local,csize,call,newmat);CHKERRQ(ierr); 2072 if (call == MAT_INITIAL_MATRIX) { 2073 ierr = PetscObjectCompose((PetscObject)*newmat,"ISAllGather",(PetscObject)iscol_local);CHKERRQ(ierr); 2074 ierr = ISDestroy(&iscol_local);CHKERRQ(ierr); 2075 } 2076 PetscFunctionReturn(0); 2077 } 2078 extern PetscErrorCode MatGetSubMatrices_MPIBAIJ_local(Mat,PetscInt,const IS[],const IS[],MatReuse,PetscBool*,PetscBool*,Mat*); 2079 #undef __FUNCT__ 2080 #define __FUNCT__ "MatGetSubMatrix_MPIBAIJ_Private" 2081 /* 2082 Not great since it makes two copies of the submatrix, first an SeqBAIJ 2083 in local and then by concatenating the local matrices the end result. 2084 Writing it directly would be much like MatGetSubMatrices_MPIBAIJ() 2085 */ 2086 PetscErrorCode MatGetSubMatrix_MPIBAIJ_Private(Mat mat,IS isrow,IS iscol,PetscInt csize,MatReuse call,Mat *newmat) 2087 { 2088 PetscErrorCode ierr; 2089 PetscMPIInt rank,size; 2090 PetscInt i,m,n,rstart,row,rend,nz,*cwork,j,bs; 2091 PetscInt *ii,*jj,nlocal,*dlens,*olens,dlen,olen,jend,mglobal,ncol,nrow; 2092 Mat M,Mreuse; 2093 MatScalar *vwork,*aa; 2094 MPI_Comm comm; 2095 IS isrow_new, iscol_new; 2096 PetscBool idflag,allrows, allcols; 2097 Mat_SeqBAIJ *aij; 2098 2099 PetscFunctionBegin; 2100 ierr = PetscObjectGetComm((PetscObject)mat,&comm);CHKERRQ(ierr); 2101 ierr = MPI_Comm_rank(comm,&rank);CHKERRQ(ierr); 2102 ierr = MPI_Comm_size(comm,&size);CHKERRQ(ierr); 2103 /* The compression and expansion should be avoided. Doesn't point 2104 out errors, might change the indices, hence buggey */ 2105 ierr = ISCompressIndicesGeneral(mat->rmap->N,mat->rmap->n,mat->rmap->bs,1,&isrow,&isrow_new);CHKERRQ(ierr); 2106 ierr = ISCompressIndicesGeneral(mat->cmap->N,mat->cmap->n,mat->cmap->bs,1,&iscol,&iscol_new);CHKERRQ(ierr); 2107 2108 /* Check for special case: each processor gets entire matrix columns */ 2109 ierr = ISIdentity(iscol,&idflag);CHKERRQ(ierr); 2110 ierr = ISGetLocalSize(iscol,&ncol);CHKERRQ(ierr); 2111 if (idflag && ncol == mat->cmap->N) allcols = PETSC_TRUE; 2112 else allcols = PETSC_FALSE; 2113 2114 ierr = ISIdentity(isrow,&idflag);CHKERRQ(ierr); 2115 ierr = ISGetLocalSize(isrow,&nrow);CHKERRQ(ierr); 2116 if (idflag && nrow == mat->rmap->N) allrows = PETSC_TRUE; 2117 else allrows = PETSC_FALSE; 2118 2119 if (call == MAT_REUSE_MATRIX) { 2120 ierr = PetscObjectQuery((PetscObject)*newmat,"SubMatrix",(PetscObject*)&Mreuse);CHKERRQ(ierr); 2121 if (!Mreuse) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_WRONGSTATE,"Submatrix passed in was not used before, cannot reuse"); 2122 ierr = MatGetSubMatrices_MPIBAIJ_local(mat,1,&isrow_new,&iscol_new,MAT_REUSE_MATRIX,&allrows,&allcols,&Mreuse);CHKERRQ(ierr); 2123 } else { 2124 ierr = MatGetSubMatrices_MPIBAIJ_local(mat,1,&isrow_new,&iscol_new,MAT_INITIAL_MATRIX,&allrows,&allcols,&Mreuse);CHKERRQ(ierr); 2125 } 2126 ierr = ISDestroy(&isrow_new);CHKERRQ(ierr); 2127 ierr = ISDestroy(&iscol_new);CHKERRQ(ierr); 2128 /* 2129 m - number of local rows 2130 n - number of columns (same on all processors) 2131 rstart - first row in new global matrix generated 2132 */ 2133 ierr = MatGetBlockSize(mat,&bs);CHKERRQ(ierr); 2134 ierr = MatGetSize(Mreuse,&m,&n);CHKERRQ(ierr); 2135 m = m/bs; 2136 n = n/bs; 2137 2138 if (call == MAT_INITIAL_MATRIX) { 2139 aij = (Mat_SeqBAIJ*)(Mreuse)->data; 2140 ii = aij->i; 2141 jj = aij->j; 2142 2143 /* 2144 Determine the number of non-zeros in the diagonal and off-diagonal 2145 portions of the matrix in order to do correct preallocation 2146 */ 2147 2148 /* first get start and end of "diagonal" columns */ 2149 if (csize == PETSC_DECIDE) { 2150 ierr = ISGetSize(isrow,&mglobal);CHKERRQ(ierr); 2151 if (mglobal == n*bs) { /* square matrix */ 2152 nlocal = m; 2153 } else { 2154 nlocal = n/size + ((n % size) > rank); 2155 } 2156 } else { 2157 nlocal = csize/bs; 2158 } 2159 ierr = MPI_Scan(&nlocal,&rend,1,MPIU_INT,MPI_SUM,comm);CHKERRQ(ierr); 2160 rstart = rend - nlocal; 2161 if (rank == size - 1 && rend != n) SETERRQ2(PETSC_COMM_SELF,PETSC_ERR_ARG_SIZ,"Local column sizes %D do not add up to total number of columns %D",rend,n); 2162 2163 /* next, compute all the lengths */ 2164 ierr = PetscMalloc2(m+1,&dlens,m+1,&olens);CHKERRQ(ierr); 2165 for (i=0; i<m; i++) { 2166 jend = ii[i+1] - ii[i]; 2167 olen = 0; 2168 dlen = 0; 2169 for (j=0; j<jend; j++) { 2170 if (*jj < rstart || *jj >= rend) olen++; 2171 else dlen++; 2172 jj++; 2173 } 2174 olens[i] = olen; 2175 dlens[i] = dlen; 2176 } 2177 ierr = MatCreate(comm,&M);CHKERRQ(ierr); 2178 ierr = MatSetSizes(M,bs*m,bs*nlocal,PETSC_DECIDE,bs*n);CHKERRQ(ierr); 2179 ierr = MatSetType(M,((PetscObject)mat)->type_name);CHKERRQ(ierr); 2180 ierr = MatMPIBAIJSetPreallocation(M,bs,0,dlens,0,olens);CHKERRQ(ierr); 2181 ierr = PetscFree2(dlens,olens);CHKERRQ(ierr); 2182 } else { 2183 PetscInt ml,nl; 2184 2185 M = *newmat; 2186 ierr = MatGetLocalSize(M,&ml,&nl);CHKERRQ(ierr); 2187 if (ml != m) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_SIZ,"Previous matrix must be same size/layout as request"); 2188 ierr = MatZeroEntries(M);CHKERRQ(ierr); 2189 /* 2190 The next two lines are needed so we may call MatSetValues_MPIAIJ() below directly, 2191 rather than the slower MatSetValues(). 2192 */ 2193 M->was_assembled = PETSC_TRUE; 2194 M->assembled = PETSC_FALSE; 2195 } 2196 ierr = MatSetOption(M,MAT_ROW_ORIENTED,PETSC_FALSE);CHKERRQ(ierr); 2197 ierr = MatGetOwnershipRange(M,&rstart,&rend);CHKERRQ(ierr); 2198 aij = (Mat_SeqBAIJ*)(Mreuse)->data; 2199 ii = aij->i; 2200 jj = aij->j; 2201 aa = aij->a; 2202 for (i=0; i<m; i++) { 2203 row = rstart/bs + i; 2204 nz = ii[i+1] - ii[i]; 2205 cwork = jj; jj += nz; 2206 vwork = aa; aa += nz*bs*bs; 2207 ierr = MatSetValuesBlocked_MPIBAIJ(M,1,&row,nz,cwork,vwork,INSERT_VALUES);CHKERRQ(ierr); 2208 } 2209 2210 ierr = MatAssemblyBegin(M,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 2211 ierr = MatAssemblyEnd(M,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 2212 *newmat = M; 2213 2214 /* save submatrix used in processor for next request */ 2215 if (call == MAT_INITIAL_MATRIX) { 2216 ierr = PetscObjectCompose((PetscObject)M,"SubMatrix",(PetscObject)Mreuse);CHKERRQ(ierr); 2217 ierr = PetscObjectDereference((PetscObject)Mreuse);CHKERRQ(ierr); 2218 } 2219 PetscFunctionReturn(0); 2220 } 2221 2222 #undef __FUNCT__ 2223 #define __FUNCT__ "MatPermute_MPIBAIJ" 2224 PetscErrorCode MatPermute_MPIBAIJ(Mat A,IS rowp,IS colp,Mat *B) 2225 { 2226 MPI_Comm comm,pcomm; 2227 PetscInt clocal_size,nrows; 2228 const PetscInt *rows; 2229 PetscMPIInt size; 2230 IS crowp,lcolp; 2231 PetscErrorCode ierr; 2232 2233 PetscFunctionBegin; 2234 ierr = PetscObjectGetComm((PetscObject)A,&comm);CHKERRQ(ierr); 2235 /* make a collective version of 'rowp' */ 2236 ierr = PetscObjectGetComm((PetscObject)rowp,&pcomm);CHKERRQ(ierr); 2237 if (pcomm==comm) { 2238 crowp = rowp; 2239 } else { 2240 ierr = ISGetSize(rowp,&nrows);CHKERRQ(ierr); 2241 ierr = ISGetIndices(rowp,&rows);CHKERRQ(ierr); 2242 ierr = ISCreateGeneral(comm,nrows,rows,PETSC_COPY_VALUES,&crowp);CHKERRQ(ierr); 2243 ierr = ISRestoreIndices(rowp,&rows);CHKERRQ(ierr); 2244 } 2245 ierr = ISSetPermutation(crowp);CHKERRQ(ierr); 2246 /* make a local version of 'colp' */ 2247 ierr = PetscObjectGetComm((PetscObject)colp,&pcomm);CHKERRQ(ierr); 2248 ierr = MPI_Comm_size(pcomm,&size);CHKERRQ(ierr); 2249 if (size==1) { 2250 lcolp = colp; 2251 } else { 2252 ierr = ISAllGather(colp,&lcolp);CHKERRQ(ierr); 2253 } 2254 ierr = ISSetPermutation(lcolp);CHKERRQ(ierr); 2255 /* now we just get the submatrix */ 2256 ierr = MatGetLocalSize(A,NULL,&clocal_size);CHKERRQ(ierr); 2257 ierr = MatGetSubMatrix_MPIBAIJ_Private(A,crowp,lcolp,clocal_size,MAT_INITIAL_MATRIX,B);CHKERRQ(ierr); 2258 /* clean up */ 2259 if (pcomm!=comm) { 2260 ierr = ISDestroy(&crowp);CHKERRQ(ierr); 2261 } 2262 if (size>1) { 2263 ierr = ISDestroy(&lcolp);CHKERRQ(ierr); 2264 } 2265 PetscFunctionReturn(0); 2266 } 2267 2268 #undef __FUNCT__ 2269 #define __FUNCT__ "MatGetGhosts_MPIBAIJ" 2270 PetscErrorCode MatGetGhosts_MPIBAIJ(Mat mat,PetscInt *nghosts,const PetscInt *ghosts[]) 2271 { 2272 Mat_MPIBAIJ *baij = (Mat_MPIBAIJ*) mat->data; 2273 Mat_SeqBAIJ *B = (Mat_SeqBAIJ*)baij->B->data; 2274 2275 PetscFunctionBegin; 2276 if (nghosts) *nghosts = B->nbs; 2277 if (ghosts) *ghosts = baij->garray; 2278 PetscFunctionReturn(0); 2279 } 2280 2281 #undef __FUNCT__ 2282 #define __FUNCT__ "MatGetSeqNonzeroStructure_MPIBAIJ" 2283 PetscErrorCode MatGetSeqNonzeroStructure_MPIBAIJ(Mat A,Mat *newmat) 2284 { 2285 Mat B; 2286 Mat_MPIBAIJ *a = (Mat_MPIBAIJ*)A->data; 2287 Mat_SeqBAIJ *ad = (Mat_SeqBAIJ*)a->A->data,*bd = (Mat_SeqBAIJ*)a->B->data; 2288 Mat_SeqAIJ *b; 2289 PetscErrorCode ierr; 2290 PetscMPIInt size,rank,*recvcounts = 0,*displs = 0; 2291 PetscInt sendcount,i,*rstarts = A->rmap->range,n,cnt,j,bs = A->rmap->bs; 2292 PetscInt m,*garray = a->garray,*lens,*jsendbuf,*a_jsendbuf,*b_jsendbuf; 2293 2294 PetscFunctionBegin; 2295 ierr = MPI_Comm_size(PetscObjectComm((PetscObject)A),&size);CHKERRQ(ierr); 2296 ierr = MPI_Comm_rank(PetscObjectComm((PetscObject)A),&rank);CHKERRQ(ierr); 2297 2298 /* ---------------------------------------------------------------- 2299 Tell every processor the number of nonzeros per row 2300 */ 2301 ierr = PetscMalloc1((A->rmap->N/bs),&lens);CHKERRQ(ierr); 2302 for (i=A->rmap->rstart/bs; i<A->rmap->rend/bs; i++) { 2303 lens[i] = ad->i[i-A->rmap->rstart/bs+1] - ad->i[i-A->rmap->rstart/bs] + bd->i[i-A->rmap->rstart/bs+1] - bd->i[i-A->rmap->rstart/bs]; 2304 } 2305 sendcount = A->rmap->rend/bs - A->rmap->rstart/bs; 2306 ierr = PetscMalloc1(2*size,&recvcounts);CHKERRQ(ierr); 2307 displs = recvcounts + size; 2308 for (i=0; i<size; i++) { 2309 recvcounts[i] = A->rmap->range[i+1]/bs - A->rmap->range[i]/bs; 2310 displs[i] = A->rmap->range[i]/bs; 2311 } 2312 #if defined(PETSC_HAVE_MPI_IN_PLACE) 2313 ierr = MPI_Allgatherv(MPI_IN_PLACE,0,MPI_DATATYPE_NULL,lens,recvcounts,displs,MPIU_INT,PetscObjectComm((PetscObject)A));CHKERRQ(ierr); 2314 #else 2315 ierr = MPI_Allgatherv(lens+A->rmap->rstart/bs,sendcount,MPIU_INT,lens,recvcounts,displs,MPIU_INT,PetscObjectComm((PetscObject)A));CHKERRQ(ierr); 2316 #endif 2317 /* --------------------------------------------------------------- 2318 Create the sequential matrix of the same type as the local block diagonal 2319 */ 2320 ierr = MatCreate(PETSC_COMM_SELF,&B);CHKERRQ(ierr); 2321 ierr = MatSetSizes(B,A->rmap->N/bs,A->cmap->N/bs,PETSC_DETERMINE,PETSC_DETERMINE);CHKERRQ(ierr); 2322 ierr = MatSetType(B,MATSEQAIJ);CHKERRQ(ierr); 2323 ierr = MatSeqAIJSetPreallocation(B,0,lens);CHKERRQ(ierr); 2324 b = (Mat_SeqAIJ*)B->data; 2325 2326 /*-------------------------------------------------------------------- 2327 Copy my part of matrix column indices over 2328 */ 2329 sendcount = ad->nz + bd->nz; 2330 jsendbuf = b->j + b->i[rstarts[rank]/bs]; 2331 a_jsendbuf = ad->j; 2332 b_jsendbuf = bd->j; 2333 n = A->rmap->rend/bs - A->rmap->rstart/bs; 2334 cnt = 0; 2335 for (i=0; i<n; i++) { 2336 2337 /* put in lower diagonal portion */ 2338 m = bd->i[i+1] - bd->i[i]; 2339 while (m > 0) { 2340 /* is it above diagonal (in bd (compressed) numbering) */ 2341 if (garray[*b_jsendbuf] > A->rmap->rstart/bs + i) break; 2342 jsendbuf[cnt++] = garray[*b_jsendbuf++]; 2343 m--; 2344 } 2345 2346 /* put in diagonal portion */ 2347 for (j=ad->i[i]; j<ad->i[i+1]; j++) { 2348 jsendbuf[cnt++] = A->rmap->rstart/bs + *a_jsendbuf++; 2349 } 2350 2351 /* put in upper diagonal portion */ 2352 while (m-- > 0) { 2353 jsendbuf[cnt++] = garray[*b_jsendbuf++]; 2354 } 2355 } 2356 if (cnt != sendcount) SETERRQ2(PETSC_COMM_SELF,PETSC_ERR_PLIB,"Corrupted PETSc matrix: nz given %D actual nz %D",sendcount,cnt); 2357 2358 /*-------------------------------------------------------------------- 2359 Gather all column indices to all processors 2360 */ 2361 for (i=0; i<size; i++) { 2362 recvcounts[i] = 0; 2363 for (j=A->rmap->range[i]/bs; j<A->rmap->range[i+1]/bs; j++) { 2364 recvcounts[i] += lens[j]; 2365 } 2366 } 2367 displs[0] = 0; 2368 for (i=1; i<size; i++) { 2369 displs[i] = displs[i-1] + recvcounts[i-1]; 2370 } 2371 #if defined(PETSC_HAVE_MPI_IN_PLACE) 2372 ierr = MPI_Allgatherv(MPI_IN_PLACE,0,MPI_DATATYPE_NULL,b->j,recvcounts,displs,MPIU_INT,PetscObjectComm((PetscObject)A));CHKERRQ(ierr); 2373 #else 2374 ierr = MPI_Allgatherv(jsendbuf,sendcount,MPIU_INT,b->j,recvcounts,displs,MPIU_INT,PetscObjectComm((PetscObject)A));CHKERRQ(ierr); 2375 #endif 2376 /*-------------------------------------------------------------------- 2377 Assemble the matrix into useable form (note numerical values not yet set) 2378 */ 2379 /* set the b->ilen (length of each row) values */ 2380 ierr = PetscMemcpy(b->ilen,lens,(A->rmap->N/bs)*sizeof(PetscInt));CHKERRQ(ierr); 2381 /* set the b->i indices */ 2382 b->i[0] = 0; 2383 for (i=1; i<=A->rmap->N/bs; i++) { 2384 b->i[i] = b->i[i-1] + lens[i-1]; 2385 } 2386 ierr = PetscFree(lens);CHKERRQ(ierr); 2387 ierr = MatAssemblyBegin(B,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 2388 ierr = MatAssemblyEnd(B,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 2389 ierr = PetscFree(recvcounts);CHKERRQ(ierr); 2390 2391 if (A->symmetric) { 2392 ierr = MatSetOption(B,MAT_SYMMETRIC,PETSC_TRUE);CHKERRQ(ierr); 2393 } else if (A->hermitian) { 2394 ierr = MatSetOption(B,MAT_HERMITIAN,PETSC_TRUE);CHKERRQ(ierr); 2395 } else if (A->structurally_symmetric) { 2396 ierr = MatSetOption(B,MAT_STRUCTURALLY_SYMMETRIC,PETSC_TRUE);CHKERRQ(ierr); 2397 } 2398 *newmat = B; 2399 PetscFunctionReturn(0); 2400 } 2401 2402 #undef __FUNCT__ 2403 #define __FUNCT__ "MatSOR_MPIBAIJ" 2404 PetscErrorCode MatSOR_MPIBAIJ(Mat matin,Vec bb,PetscReal omega,MatSORType flag,PetscReal fshift,PetscInt its,PetscInt lits,Vec xx) 2405 { 2406 Mat_MPIBAIJ *mat = (Mat_MPIBAIJ*)matin->data; 2407 PetscErrorCode ierr; 2408 Vec bb1 = 0; 2409 2410 PetscFunctionBegin; 2411 if (flag == SOR_APPLY_UPPER) { 2412 ierr = (*mat->A->ops->sor)(mat->A,bb,omega,flag,fshift,lits,1,xx);CHKERRQ(ierr); 2413 PetscFunctionReturn(0); 2414 } 2415 2416 if (its > 1 || ~flag & SOR_ZERO_INITIAL_GUESS) { 2417 ierr = VecDuplicate(bb,&bb1);CHKERRQ(ierr); 2418 } 2419 2420 if ((flag & SOR_LOCAL_SYMMETRIC_SWEEP) == SOR_LOCAL_SYMMETRIC_SWEEP) { 2421 if (flag & SOR_ZERO_INITIAL_GUESS) { 2422 ierr = (*mat->A->ops->sor)(mat->A,bb,omega,flag,fshift,lits,1,xx);CHKERRQ(ierr); 2423 its--; 2424 } 2425 2426 while (its--) { 2427 ierr = VecScatterBegin(mat->Mvctx,xx,mat->lvec,INSERT_VALUES,SCATTER_FORWARD);CHKERRQ(ierr); 2428 ierr = VecScatterEnd(mat->Mvctx,xx,mat->lvec,INSERT_VALUES,SCATTER_FORWARD);CHKERRQ(ierr); 2429 2430 /* update rhs: bb1 = bb - B*x */ 2431 ierr = VecScale(mat->lvec,-1.0);CHKERRQ(ierr); 2432 ierr = (*mat->B->ops->multadd)(mat->B,mat->lvec,bb,bb1);CHKERRQ(ierr); 2433 2434 /* local sweep */ 2435 ierr = (*mat->A->ops->sor)(mat->A,bb1,omega,SOR_SYMMETRIC_SWEEP,fshift,lits,1,xx);CHKERRQ(ierr); 2436 } 2437 } else if (flag & SOR_LOCAL_FORWARD_SWEEP) { 2438 if (flag & SOR_ZERO_INITIAL_GUESS) { 2439 ierr = (*mat->A->ops->sor)(mat->A,bb,omega,flag,fshift,lits,1,xx);CHKERRQ(ierr); 2440 its--; 2441 } 2442 while (its--) { 2443 ierr = VecScatterBegin(mat->Mvctx,xx,mat->lvec,INSERT_VALUES,SCATTER_FORWARD);CHKERRQ(ierr); 2444 ierr = VecScatterEnd(mat->Mvctx,xx,mat->lvec,INSERT_VALUES,SCATTER_FORWARD);CHKERRQ(ierr); 2445 2446 /* update rhs: bb1 = bb - B*x */ 2447 ierr = VecScale(mat->lvec,-1.0);CHKERRQ(ierr); 2448 ierr = (*mat->B->ops->multadd)(mat->B,mat->lvec,bb,bb1);CHKERRQ(ierr); 2449 2450 /* local sweep */ 2451 ierr = (*mat->A->ops->sor)(mat->A,bb1,omega,SOR_FORWARD_SWEEP,fshift,lits,1,xx);CHKERRQ(ierr); 2452 } 2453 } else if (flag & SOR_LOCAL_BACKWARD_SWEEP) { 2454 if (flag & SOR_ZERO_INITIAL_GUESS) { 2455 ierr = (*mat->A->ops->sor)(mat->A,bb,omega,flag,fshift,lits,1,xx);CHKERRQ(ierr); 2456 its--; 2457 } 2458 while (its--) { 2459 ierr = VecScatterBegin(mat->Mvctx,xx,mat->lvec,INSERT_VALUES,SCATTER_FORWARD);CHKERRQ(ierr); 2460 ierr = VecScatterEnd(mat->Mvctx,xx,mat->lvec,INSERT_VALUES,SCATTER_FORWARD);CHKERRQ(ierr); 2461 2462 /* update rhs: bb1 = bb - B*x */ 2463 ierr = VecScale(mat->lvec,-1.0);CHKERRQ(ierr); 2464 ierr = (*mat->B->ops->multadd)(mat->B,mat->lvec,bb,bb1);CHKERRQ(ierr); 2465 2466 /* local sweep */ 2467 ierr = (*mat->A->ops->sor)(mat->A,bb1,omega,SOR_BACKWARD_SWEEP,fshift,lits,1,xx);CHKERRQ(ierr); 2468 } 2469 } else SETERRQ(PetscObjectComm((PetscObject)matin),PETSC_ERR_SUP,"Parallel version of SOR requested not supported"); 2470 2471 ierr = VecDestroy(&bb1);CHKERRQ(ierr); 2472 PetscFunctionReturn(0); 2473 } 2474 2475 #undef __FUNCT__ 2476 #define __FUNCT__ "MatGetColumnNorms_MPIBAIJ" 2477 PetscErrorCode MatGetColumnNorms_MPIBAIJ(Mat A,NormType type,PetscReal *norms) 2478 { 2479 PetscErrorCode ierr; 2480 Mat_MPIBAIJ *aij = (Mat_MPIBAIJ*)A->data; 2481 PetscInt N,i,*garray = aij->garray; 2482 PetscInt ib,jb,bs = A->rmap->bs; 2483 Mat_SeqBAIJ *a_aij = (Mat_SeqBAIJ*) aij->A->data; 2484 MatScalar *a_val = a_aij->a; 2485 Mat_SeqBAIJ *b_aij = (Mat_SeqBAIJ*) aij->B->data; 2486 MatScalar *b_val = b_aij->a; 2487 PetscReal *work; 2488 2489 PetscFunctionBegin; 2490 ierr = MatGetSize(A,NULL,&N);CHKERRQ(ierr); 2491 ierr = PetscCalloc1(N,&work);CHKERRQ(ierr); 2492 if (type == NORM_2) { 2493 for (i=a_aij->i[0]; i<a_aij->i[aij->A->rmap->n/bs]; i++) { 2494 for (jb=0; jb<bs; jb++) { 2495 for (ib=0; ib<bs; ib++) { 2496 work[A->cmap->rstart + a_aij->j[i] * bs + jb] += PetscAbsScalar(*a_val * *a_val); 2497 a_val++; 2498 } 2499 } 2500 } 2501 for (i=b_aij->i[0]; i<b_aij->i[aij->B->rmap->n/bs]; i++) { 2502 for (jb=0; jb<bs; jb++) { 2503 for (ib=0; ib<bs; ib++) { 2504 work[garray[b_aij->j[i]] * bs + jb] += PetscAbsScalar(*b_val * *b_val); 2505 b_val++; 2506 } 2507 } 2508 } 2509 } else if (type == NORM_1) { 2510 for (i=a_aij->i[0]; i<a_aij->i[aij->A->rmap->n/bs]; i++) { 2511 for (jb=0; jb<bs; jb++) { 2512 for (ib=0; ib<bs; ib++) { 2513 work[A->cmap->rstart + a_aij->j[i] * bs + jb] += PetscAbsScalar(*a_val); 2514 a_val++; 2515 } 2516 } 2517 } 2518 for (i=b_aij->i[0]; i<b_aij->i[aij->B->rmap->n/bs]; i++) { 2519 for (jb=0; jb<bs; jb++) { 2520 for (ib=0; ib<bs; ib++) { 2521 work[garray[b_aij->j[i]] * bs + jb] += PetscAbsScalar(*b_val); 2522 b_val++; 2523 } 2524 } 2525 } 2526 } else if (type == NORM_INFINITY) { 2527 for (i=a_aij->i[0]; i<a_aij->i[aij->A->rmap->n/bs]; i++) { 2528 for (jb=0; jb<bs; jb++) { 2529 for (ib=0; ib<bs; ib++) { 2530 int col = A->cmap->rstart + a_aij->j[i] * bs + jb; 2531 work[col] = PetscMax(PetscAbsScalar(*a_val), work[col]); 2532 a_val++; 2533 } 2534 } 2535 } 2536 for (i=b_aij->i[0]; i<b_aij->i[aij->B->rmap->n/bs]; i++) { 2537 for (jb=0; jb<bs; jb++) { 2538 for (ib=0; ib<bs; ib++) { 2539 int col = garray[b_aij->j[i]] * bs + jb; 2540 work[col] = PetscMax(PetscAbsScalar(*b_val), work[col]); 2541 b_val++; 2542 } 2543 } 2544 } 2545 } else SETERRQ(PetscObjectComm((PetscObject)A),PETSC_ERR_ARG_WRONG,"Unknown NormType"); 2546 if (type == NORM_INFINITY) { 2547 ierr = MPI_Allreduce(work,norms,N,MPIU_REAL,MPIU_MAX,PetscObjectComm((PetscObject)A));CHKERRQ(ierr); 2548 } else { 2549 ierr = MPI_Allreduce(work,norms,N,MPIU_REAL,MPIU_SUM,PetscObjectComm((PetscObject)A));CHKERRQ(ierr); 2550 } 2551 ierr = PetscFree(work);CHKERRQ(ierr); 2552 if (type == NORM_2) { 2553 for (i=0; i<N; i++) norms[i] = PetscSqrtReal(norms[i]); 2554 } 2555 PetscFunctionReturn(0); 2556 } 2557 2558 #undef __FUNCT__ 2559 #define __FUNCT__ "MatInvertBlockDiagonal_MPIBAIJ" 2560 PetscErrorCode MatInvertBlockDiagonal_MPIBAIJ(Mat A,const PetscScalar **values) 2561 { 2562 Mat_MPIBAIJ *a = (Mat_MPIBAIJ*) A->data; 2563 PetscErrorCode ierr; 2564 2565 PetscFunctionBegin; 2566 ierr = MatInvertBlockDiagonal(a->A,values);CHKERRQ(ierr); 2567 PetscFunctionReturn(0); 2568 } 2569 2570 2571 /* -------------------------------------------------------------------*/ 2572 static struct _MatOps MatOps_Values = {MatSetValues_MPIBAIJ, 2573 MatGetRow_MPIBAIJ, 2574 MatRestoreRow_MPIBAIJ, 2575 MatMult_MPIBAIJ, 2576 /* 4*/ MatMultAdd_MPIBAIJ, 2577 MatMultTranspose_MPIBAIJ, 2578 MatMultTransposeAdd_MPIBAIJ, 2579 0, 2580 0, 2581 0, 2582 /*10*/ 0, 2583 0, 2584 0, 2585 MatSOR_MPIBAIJ, 2586 MatTranspose_MPIBAIJ, 2587 /*15*/ MatGetInfo_MPIBAIJ, 2588 MatEqual_MPIBAIJ, 2589 MatGetDiagonal_MPIBAIJ, 2590 MatDiagonalScale_MPIBAIJ, 2591 MatNorm_MPIBAIJ, 2592 /*20*/ MatAssemblyBegin_MPIBAIJ, 2593 MatAssemblyEnd_MPIBAIJ, 2594 MatSetOption_MPIBAIJ, 2595 MatZeroEntries_MPIBAIJ, 2596 /*24*/ MatZeroRows_MPIBAIJ, 2597 0, 2598 0, 2599 0, 2600 0, 2601 /*29*/ MatSetUp_MPIBAIJ, 2602 0, 2603 0, 2604 0, 2605 0, 2606 /*34*/ MatDuplicate_MPIBAIJ, 2607 0, 2608 0, 2609 0, 2610 0, 2611 /*39*/ MatAXPY_MPIBAIJ, 2612 MatGetSubMatrices_MPIBAIJ, 2613 MatIncreaseOverlap_MPIBAIJ, 2614 MatGetValues_MPIBAIJ, 2615 MatCopy_MPIBAIJ, 2616 /*44*/ 0, 2617 MatScale_MPIBAIJ, 2618 0, 2619 0, 2620 MatZeroRowsColumns_MPIBAIJ, 2621 /*49*/ 0, 2622 0, 2623 0, 2624 0, 2625 0, 2626 /*54*/ MatFDColoringCreate_MPIXAIJ, 2627 0, 2628 MatSetUnfactored_MPIBAIJ, 2629 MatPermute_MPIBAIJ, 2630 MatSetValuesBlocked_MPIBAIJ, 2631 /*59*/ MatGetSubMatrix_MPIBAIJ, 2632 MatDestroy_MPIBAIJ, 2633 MatView_MPIBAIJ, 2634 0, 2635 0, 2636 /*64*/ 0, 2637 0, 2638 0, 2639 0, 2640 0, 2641 /*69*/ MatGetRowMaxAbs_MPIBAIJ, 2642 0, 2643 0, 2644 0, 2645 0, 2646 /*74*/ 0, 2647 MatFDColoringApply_BAIJ, 2648 0, 2649 0, 2650 0, 2651 /*79*/ 0, 2652 0, 2653 0, 2654 0, 2655 MatLoad_MPIBAIJ, 2656 /*84*/ 0, 2657 0, 2658 0, 2659 0, 2660 0, 2661 /*89*/ 0, 2662 0, 2663 0, 2664 0, 2665 0, 2666 /*94*/ 0, 2667 0, 2668 0, 2669 0, 2670 0, 2671 /*99*/ 0, 2672 0, 2673 0, 2674 0, 2675 0, 2676 /*104*/0, 2677 MatRealPart_MPIBAIJ, 2678 MatImaginaryPart_MPIBAIJ, 2679 0, 2680 0, 2681 /*109*/0, 2682 0, 2683 0, 2684 0, 2685 0, 2686 /*114*/MatGetSeqNonzeroStructure_MPIBAIJ, 2687 0, 2688 MatGetGhosts_MPIBAIJ, 2689 0, 2690 0, 2691 /*119*/0, 2692 0, 2693 0, 2694 0, 2695 MatGetMultiProcBlock_MPIBAIJ, 2696 /*124*/0, 2697 MatGetColumnNorms_MPIBAIJ, 2698 MatInvertBlockDiagonal_MPIBAIJ, 2699 0, 2700 0, 2701 /*129*/ 0, 2702 0, 2703 0, 2704 0, 2705 0, 2706 /*134*/ 0, 2707 0, 2708 0, 2709 0, 2710 0, 2711 /*139*/ 0, 2712 0, 2713 0, 2714 MatFDColoringSetUp_MPIXAIJ 2715 }; 2716 2717 #undef __FUNCT__ 2718 #define __FUNCT__ "MatGetDiagonalBlock_MPIBAIJ" 2719 PetscErrorCode MatGetDiagonalBlock_MPIBAIJ(Mat A,Mat *a) 2720 { 2721 PetscFunctionBegin; 2722 *a = ((Mat_MPIBAIJ*)A->data)->A; 2723 PetscFunctionReturn(0); 2724 } 2725 2726 PETSC_EXTERN PetscErrorCode MatConvert_MPIBAIJ_MPISBAIJ(Mat, MatType,MatReuse,Mat*); 2727 2728 #undef __FUNCT__ 2729 #define __FUNCT__ "MatMPIBAIJSetPreallocationCSR_MPIBAIJ" 2730 PetscErrorCode MatMPIBAIJSetPreallocationCSR_MPIBAIJ(Mat B,PetscInt bs,const PetscInt ii[],const PetscInt jj[],const PetscScalar V[]) 2731 { 2732 PetscInt m,rstart,cstart,cend; 2733 PetscInt i,j,d,nz,nz_max=0,*d_nnz=0,*o_nnz=0; 2734 const PetscInt *JJ =0; 2735 PetscScalar *values=0; 2736 PetscBool roworiented = ((Mat_MPIBAIJ*)B->data)->roworiented; 2737 PetscErrorCode ierr; 2738 2739 PetscFunctionBegin; 2740 ierr = PetscLayoutSetBlockSize(B->rmap,bs);CHKERRQ(ierr); 2741 ierr = PetscLayoutSetBlockSize(B->cmap,bs);CHKERRQ(ierr); 2742 ierr = PetscLayoutSetUp(B->rmap);CHKERRQ(ierr); 2743 ierr = PetscLayoutSetUp(B->cmap);CHKERRQ(ierr); 2744 ierr = PetscLayoutGetBlockSize(B->rmap,&bs);CHKERRQ(ierr); 2745 m = B->rmap->n/bs; 2746 rstart = B->rmap->rstart/bs; 2747 cstart = B->cmap->rstart/bs; 2748 cend = B->cmap->rend/bs; 2749 2750 if (ii[0]) SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"ii[0] must be 0 but it is %D",ii[0]); 2751 ierr = PetscMalloc2(m,&d_nnz,m,&o_nnz);CHKERRQ(ierr); 2752 for (i=0; i<m; i++) { 2753 nz = ii[i+1] - ii[i]; 2754 if (nz < 0) SETERRQ2(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"Local row %D has a negative number of columns %D",i,nz); 2755 nz_max = PetscMax(nz_max,nz); 2756 JJ = jj + ii[i]; 2757 for (j=0; j<nz; j++) { 2758 if (*JJ >= cstart) break; 2759 JJ++; 2760 } 2761 d = 0; 2762 for (; j<nz; j++) { 2763 if (*JJ++ >= cend) break; 2764 d++; 2765 } 2766 d_nnz[i] = d; 2767 o_nnz[i] = nz - d; 2768 } 2769 ierr = MatMPIBAIJSetPreallocation(B,bs,0,d_nnz,0,o_nnz);CHKERRQ(ierr); 2770 ierr = PetscFree2(d_nnz,o_nnz);CHKERRQ(ierr); 2771 2772 values = (PetscScalar*)V; 2773 if (!values) { 2774 ierr = PetscMalloc1(bs*bs*nz_max,&values);CHKERRQ(ierr); 2775 ierr = PetscMemzero(values,bs*bs*nz_max*sizeof(PetscScalar));CHKERRQ(ierr); 2776 } 2777 for (i=0; i<m; i++) { 2778 PetscInt row = i + rstart; 2779 PetscInt ncols = ii[i+1] - ii[i]; 2780 const PetscInt *icols = jj + ii[i]; 2781 if (!roworiented) { /* block ordering matches the non-nested layout of MatSetValues so we can insert entire rows */ 2782 const PetscScalar *svals = values + (V ? (bs*bs*ii[i]) : 0); 2783 ierr = MatSetValuesBlocked_MPIBAIJ(B,1,&row,ncols,icols,svals,INSERT_VALUES);CHKERRQ(ierr); 2784 } else { /* block ordering does not match so we can only insert one block at a time. */ 2785 PetscInt j; 2786 for (j=0; j<ncols; j++) { 2787 const PetscScalar *svals = values + (V ? (bs*bs*(ii[i]+j)) : 0); 2788 ierr = MatSetValuesBlocked_MPIBAIJ(B,1,&row,1,&icols[j],svals,INSERT_VALUES);CHKERRQ(ierr); 2789 } 2790 } 2791 } 2792 2793 if (!V) { ierr = PetscFree(values);CHKERRQ(ierr); } 2794 ierr = MatAssemblyBegin(B,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 2795 ierr = MatAssemblyEnd(B,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 2796 ierr = MatSetOption(B,MAT_NEW_NONZERO_LOCATION_ERR,PETSC_TRUE);CHKERRQ(ierr); 2797 PetscFunctionReturn(0); 2798 } 2799 2800 #undef __FUNCT__ 2801 #define __FUNCT__ "MatMPIBAIJSetPreallocationCSR" 2802 /*@C 2803 MatMPIBAIJSetPreallocationCSR - Allocates memory for a sparse parallel matrix in BAIJ format 2804 (the default parallel PETSc format). 2805 2806 Collective on MPI_Comm 2807 2808 Input Parameters: 2809 + B - the matrix 2810 . bs - the block size 2811 . i - the indices into j for the start of each local row (starts with zero) 2812 . j - the column indices for each local row (starts with zero) these must be sorted for each row 2813 - v - optional values in the matrix 2814 2815 Level: developer 2816 2817 Notes: The order of the entries in values is specified by the MatOption MAT_ROW_ORIENTED. For example, C programs 2818 may want to use the default MAT_ROW_ORIENTED=PETSC_TRUE and use an array v[nnz][bs][bs] where the second index is 2819 over rows within a block and the last index is over columns within a block row. Fortran programs will likely set 2820 MAT_ROW_ORIENTED=PETSC_FALSE and use a Fortran array v(bs,bs,nnz) in which the first index is over rows within a 2821 block column and the second index is over columns within a block. 2822 2823 .keywords: matrix, aij, compressed row, sparse, parallel 2824 2825 .seealso: MatCreate(), MatCreateSeqAIJ(), MatSetValues(), MatMPIBAIJSetPreallocation(), MatCreateAIJ(), MPIAIJ, MatCreateMPIBAIJWithArrays(), MPIBAIJ 2826 @*/ 2827 PetscErrorCode MatMPIBAIJSetPreallocationCSR(Mat B,PetscInt bs,const PetscInt i[],const PetscInt j[], const PetscScalar v[]) 2828 { 2829 PetscErrorCode ierr; 2830 2831 PetscFunctionBegin; 2832 PetscValidHeaderSpecific(B,MAT_CLASSID,1); 2833 PetscValidType(B,1); 2834 PetscValidLogicalCollectiveInt(B,bs,2); 2835 ierr = PetscTryMethod(B,"MatMPIBAIJSetPreallocationCSR_C",(Mat,PetscInt,const PetscInt[],const PetscInt[],const PetscScalar[]),(B,bs,i,j,v));CHKERRQ(ierr); 2836 PetscFunctionReturn(0); 2837 } 2838 2839 #undef __FUNCT__ 2840 #define __FUNCT__ "MatMPIBAIJSetPreallocation_MPIBAIJ" 2841 PetscErrorCode MatMPIBAIJSetPreallocation_MPIBAIJ(Mat B,PetscInt bs,PetscInt d_nz,const PetscInt *d_nnz,PetscInt o_nz,const PetscInt *o_nnz) 2842 { 2843 Mat_MPIBAIJ *b; 2844 PetscErrorCode ierr; 2845 PetscInt i; 2846 2847 PetscFunctionBegin; 2848 ierr = MatSetBlockSize(B,PetscAbs(bs));CHKERRQ(ierr); 2849 ierr = PetscLayoutSetUp(B->rmap);CHKERRQ(ierr); 2850 ierr = PetscLayoutSetUp(B->cmap);CHKERRQ(ierr); 2851 ierr = PetscLayoutGetBlockSize(B->rmap,&bs);CHKERRQ(ierr); 2852 2853 if (d_nnz) { 2854 for (i=0; i<B->rmap->n/bs; i++) { 2855 if (d_nnz[i] < 0) SETERRQ2(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"d_nnz cannot be less than -1: local row %D value %D",i,d_nnz[i]); 2856 } 2857 } 2858 if (o_nnz) { 2859 for (i=0; i<B->rmap->n/bs; i++) { 2860 if (o_nnz[i] < 0) SETERRQ2(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"o_nnz cannot be less than -1: local row %D value %D",i,o_nnz[i]); 2861 } 2862 } 2863 2864 b = (Mat_MPIBAIJ*)B->data; 2865 b->bs2 = bs*bs; 2866 b->mbs = B->rmap->n/bs; 2867 b->nbs = B->cmap->n/bs; 2868 b->Mbs = B->rmap->N/bs; 2869 b->Nbs = B->cmap->N/bs; 2870 2871 for (i=0; i<=b->size; i++) { 2872 b->rangebs[i] = B->rmap->range[i]/bs; 2873 } 2874 b->rstartbs = B->rmap->rstart/bs; 2875 b->rendbs = B->rmap->rend/bs; 2876 b->cstartbs = B->cmap->rstart/bs; 2877 b->cendbs = B->cmap->rend/bs; 2878 2879 if (!B->preallocated) { 2880 ierr = MatCreate(PETSC_COMM_SELF,&b->A);CHKERRQ(ierr); 2881 ierr = MatSetSizes(b->A,B->rmap->n,B->cmap->n,B->rmap->n,B->cmap->n);CHKERRQ(ierr); 2882 ierr = MatSetType(b->A,MATSEQBAIJ);CHKERRQ(ierr); 2883 ierr = PetscLogObjectParent((PetscObject)B,(PetscObject)b->A);CHKERRQ(ierr); 2884 ierr = MatCreate(PETSC_COMM_SELF,&b->B);CHKERRQ(ierr); 2885 ierr = MatSetSizes(b->B,B->rmap->n,B->cmap->N,B->rmap->n,B->cmap->N);CHKERRQ(ierr); 2886 ierr = MatSetType(b->B,MATSEQBAIJ);CHKERRQ(ierr); 2887 ierr = PetscLogObjectParent((PetscObject)B,(PetscObject)b->B);CHKERRQ(ierr); 2888 ierr = MatStashCreate_Private(PetscObjectComm((PetscObject)B),bs,&B->bstash);CHKERRQ(ierr); 2889 } 2890 2891 ierr = MatSeqBAIJSetPreallocation(b->A,bs,d_nz,d_nnz);CHKERRQ(ierr); 2892 ierr = MatSeqBAIJSetPreallocation(b->B,bs,o_nz,o_nnz);CHKERRQ(ierr); 2893 B->preallocated = PETSC_TRUE; 2894 PetscFunctionReturn(0); 2895 } 2896 2897 extern PetscErrorCode MatDiagonalScaleLocal_MPIBAIJ(Mat,Vec); 2898 extern PetscErrorCode MatSetHashTableFactor_MPIBAIJ(Mat,PetscReal); 2899 2900 #undef __FUNCT__ 2901 #define __FUNCT__ "MatConvert_MPIBAIJ_MPIAdj" 2902 PETSC_EXTERN PetscErrorCode MatConvert_MPIBAIJ_MPIAdj(Mat B, MatType newtype,MatReuse reuse,Mat *adj) 2903 { 2904 Mat_MPIBAIJ *b = (Mat_MPIBAIJ*)B->data; 2905 PetscErrorCode ierr; 2906 Mat_SeqBAIJ *d = (Mat_SeqBAIJ*) b->A->data,*o = (Mat_SeqBAIJ*) b->B->data; 2907 PetscInt M = B->rmap->n/B->rmap->bs,i,*ii,*jj,cnt,j,k,rstart = B->rmap->rstart/B->rmap->bs; 2908 const PetscInt *id = d->i, *jd = d->j, *io = o->i, *jo = o->j, *garray = b->garray; 2909 2910 PetscFunctionBegin; 2911 ierr = PetscMalloc1((M+1),&ii);CHKERRQ(ierr); 2912 ii[0] = 0; 2913 for (i=0; i<M; i++) { 2914 if ((id[i+1] - id[i]) < 0) SETERRQ3(PETSC_COMM_SELF,PETSC_ERR_PLIB,"Indices wrong %D %D %D",i,id[i],id[i+1]); 2915 if ((io[i+1] - io[i]) < 0) SETERRQ3(PETSC_COMM_SELF,PETSC_ERR_PLIB,"Indices wrong %D %D %D",i,io[i],io[i+1]); 2916 ii[i+1] = ii[i] + id[i+1] - id[i] + io[i+1] - io[i]; 2917 /* remove one from count of matrix has diagonal */ 2918 for (j=id[i]; j<id[i+1]; j++) { 2919 if (jd[j] == i) {ii[i+1]--;break;} 2920 } 2921 } 2922 ierr = PetscMalloc1(ii[M],&jj);CHKERRQ(ierr); 2923 cnt = 0; 2924 for (i=0; i<M; i++) { 2925 for (j=io[i]; j<io[i+1]; j++) { 2926 if (garray[jo[j]] > rstart) break; 2927 jj[cnt++] = garray[jo[j]]; 2928 } 2929 for (k=id[i]; k<id[i+1]; k++) { 2930 if (jd[k] != i) { 2931 jj[cnt++] = rstart + jd[k]; 2932 } 2933 } 2934 for (; j<io[i+1]; j++) { 2935 jj[cnt++] = garray[jo[j]]; 2936 } 2937 } 2938 ierr = MatCreateMPIAdj(PetscObjectComm((PetscObject)B),M,B->cmap->N/B->rmap->bs,ii,jj,NULL,adj);CHKERRQ(ierr); 2939 PetscFunctionReturn(0); 2940 } 2941 2942 #include <../src/mat/impls/aij/mpi/mpiaij.h> 2943 2944 PETSC_EXTERN PetscErrorCode MatConvert_SeqBAIJ_SeqAIJ(Mat,MatType,MatReuse,Mat*); 2945 2946 #undef __FUNCT__ 2947 #define __FUNCT__ "MatConvert_MPIBAIJ_MPIAIJ" 2948 PETSC_EXTERN PetscErrorCode MatConvert_MPIBAIJ_MPIAIJ(Mat A,MatType newtype,MatReuse reuse,Mat *newmat) 2949 { 2950 PetscErrorCode ierr; 2951 Mat_MPIBAIJ *a = (Mat_MPIBAIJ*)A->data; 2952 Mat B; 2953 Mat_MPIAIJ *b; 2954 2955 PetscFunctionBegin; 2956 if (!A->assembled) SETERRQ(PetscObjectComm((PetscObject)A),PETSC_ERR_SUP,"Matrix must be assembled"); 2957 2958 ierr = MatCreate(PetscObjectComm((PetscObject)A),&B);CHKERRQ(ierr); 2959 ierr = MatSetSizes(B,A->rmap->n,A->cmap->n,A->rmap->N,A->cmap->N);CHKERRQ(ierr); 2960 ierr = MatSetType(B,MATMPIAIJ);CHKERRQ(ierr); 2961 ierr = MatSeqAIJSetPreallocation(B,0,NULL);CHKERRQ(ierr); 2962 ierr = MatMPIAIJSetPreallocation(B,0,NULL,0,NULL);CHKERRQ(ierr); 2963 b = (Mat_MPIAIJ*) B->data; 2964 2965 ierr = MatDestroy(&b->A);CHKERRQ(ierr); 2966 ierr = MatDestroy(&b->B);CHKERRQ(ierr); 2967 ierr = MatDisAssemble_MPIBAIJ(A);CHKERRQ(ierr); 2968 ierr = MatConvert_SeqBAIJ_SeqAIJ(a->A, MATSEQAIJ, MAT_INITIAL_MATRIX, &b->A);CHKERRQ(ierr); 2969 ierr = MatConvert_SeqBAIJ_SeqAIJ(a->B, MATSEQAIJ, MAT_INITIAL_MATRIX, &b->B);CHKERRQ(ierr); 2970 ierr = MatAssemblyBegin(B,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 2971 ierr = MatAssemblyEnd(B,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 2972 ierr = MatAssemblyBegin(A,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 2973 ierr = MatAssemblyEnd(A,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 2974 if (reuse == MAT_REUSE_MATRIX) { 2975 ierr = MatHeaderReplace(A,B);CHKERRQ(ierr); 2976 } else { 2977 *newmat = B; 2978 } 2979 PetscFunctionReturn(0); 2980 } 2981 2982 #if defined(PETSC_HAVE_MUMPS) 2983 PETSC_EXTERN PetscErrorCode MatGetFactor_baij_mumps(Mat,MatFactorType,Mat*); 2984 #endif 2985 2986 /*MC 2987 MATMPIBAIJ - MATMPIBAIJ = "mpibaij" - A matrix type to be used for distributed block sparse matrices. 2988 2989 Options Database Keys: 2990 + -mat_type mpibaij - sets the matrix type to "mpibaij" during a call to MatSetFromOptions() 2991 . -mat_block_size <bs> - set the blocksize used to store the matrix 2992 - -mat_use_hash_table <fact> 2993 2994 Level: beginner 2995 2996 .seealso: MatCreateMPIBAIJ 2997 M*/ 2998 2999 PETSC_EXTERN PetscErrorCode MatConvert_MPIBAIJ_MPIBSTRM(Mat,MatType,MatReuse,Mat*); 3000 3001 #undef __FUNCT__ 3002 #define __FUNCT__ "MatCreate_MPIBAIJ" 3003 PETSC_EXTERN PetscErrorCode MatCreate_MPIBAIJ(Mat B) 3004 { 3005 Mat_MPIBAIJ *b; 3006 PetscErrorCode ierr; 3007 PetscBool flg = PETSC_FALSE; 3008 3009 PetscFunctionBegin; 3010 ierr = PetscNewLog(B,&b);CHKERRQ(ierr); 3011 B->data = (void*)b; 3012 3013 ierr = PetscMemcpy(B->ops,&MatOps_Values,sizeof(struct _MatOps));CHKERRQ(ierr); 3014 B->assembled = PETSC_FALSE; 3015 3016 B->insertmode = NOT_SET_VALUES; 3017 ierr = MPI_Comm_rank(PetscObjectComm((PetscObject)B),&b->rank);CHKERRQ(ierr); 3018 ierr = MPI_Comm_size(PetscObjectComm((PetscObject)B),&b->size);CHKERRQ(ierr); 3019 3020 /* build local table of row and column ownerships */ 3021 ierr = PetscMalloc1((b->size+1),&b->rangebs);CHKERRQ(ierr); 3022 3023 /* build cache for off array entries formed */ 3024 ierr = MatStashCreate_Private(PetscObjectComm((PetscObject)B),1,&B->stash);CHKERRQ(ierr); 3025 3026 b->donotstash = PETSC_FALSE; 3027 b->colmap = NULL; 3028 b->garray = NULL; 3029 b->roworiented = PETSC_TRUE; 3030 3031 /* stuff used in block assembly */ 3032 b->barray = 0; 3033 3034 /* stuff used for matrix vector multiply */ 3035 b->lvec = 0; 3036 b->Mvctx = 0; 3037 3038 /* stuff for MatGetRow() */ 3039 b->rowindices = 0; 3040 b->rowvalues = 0; 3041 b->getrowactive = PETSC_FALSE; 3042 3043 /* hash table stuff */ 3044 b->ht = 0; 3045 b->hd = 0; 3046 b->ht_size = 0; 3047 b->ht_flag = PETSC_FALSE; 3048 b->ht_fact = 0; 3049 b->ht_total_ct = 0; 3050 b->ht_insert_ct = 0; 3051 3052 /* stuff for MatGetSubMatrices_MPIBAIJ_local() */ 3053 b->ijonly = PETSC_FALSE; 3054 3055 3056 #if defined(PETSC_HAVE_MUMPS) 3057 ierr = PetscObjectComposeFunction((PetscObject)B,"MatGetFactor_mumps_C",MatGetFactor_baij_mumps);CHKERRQ(ierr); 3058 #endif 3059 ierr = PetscObjectComposeFunction((PetscObject)B,"MatConvert_mpibaij_mpiadj_C",MatConvert_MPIBAIJ_MPIAdj);CHKERRQ(ierr); 3060 ierr = PetscObjectComposeFunction((PetscObject)B,"MatConvert_mpibaij_mpiaij_C",MatConvert_MPIBAIJ_MPIAIJ);CHKERRQ(ierr); 3061 ierr = PetscObjectComposeFunction((PetscObject)B,"MatConvert_mpibaij_mpisbaij_C",MatConvert_MPIBAIJ_MPISBAIJ);CHKERRQ(ierr); 3062 ierr = PetscObjectComposeFunction((PetscObject)B,"MatStoreValues_C",MatStoreValues_MPIBAIJ);CHKERRQ(ierr); 3063 ierr = PetscObjectComposeFunction((PetscObject)B,"MatRetrieveValues_C",MatRetrieveValues_MPIBAIJ);CHKERRQ(ierr); 3064 ierr = PetscObjectComposeFunction((PetscObject)B,"MatGetDiagonalBlock_C",MatGetDiagonalBlock_MPIBAIJ);CHKERRQ(ierr); 3065 ierr = PetscObjectComposeFunction((PetscObject)B,"MatMPIBAIJSetPreallocation_C",MatMPIBAIJSetPreallocation_MPIBAIJ);CHKERRQ(ierr); 3066 ierr = PetscObjectComposeFunction((PetscObject)B,"MatMPIBAIJSetPreallocationCSR_C",MatMPIBAIJSetPreallocationCSR_MPIBAIJ);CHKERRQ(ierr); 3067 ierr = PetscObjectComposeFunction((PetscObject)B,"MatDiagonalScaleLocal_C",MatDiagonalScaleLocal_MPIBAIJ);CHKERRQ(ierr); 3068 ierr = PetscObjectComposeFunction((PetscObject)B,"MatSetHashTableFactor_C",MatSetHashTableFactor_MPIBAIJ);CHKERRQ(ierr); 3069 ierr = PetscObjectComposeFunction((PetscObject)B,"MatConvert_mpibaij_mpibstrm_C",MatConvert_MPIBAIJ_MPIBSTRM);CHKERRQ(ierr); 3070 ierr = PetscObjectChangeTypeName((PetscObject)B,MATMPIBAIJ);CHKERRQ(ierr); 3071 3072 ierr = PetscOptionsBegin(PetscObjectComm((PetscObject)B),NULL,"Options for loading MPIBAIJ matrix 1","Mat");CHKERRQ(ierr); 3073 ierr = PetscOptionsBool("-mat_use_hash_table","Use hash table to save memory in constructing matrix","MatSetOption",flg,&flg,NULL);CHKERRQ(ierr); 3074 if (flg) { 3075 PetscReal fact = 1.39; 3076 ierr = MatSetOption(B,MAT_USE_HASH_TABLE,PETSC_TRUE);CHKERRQ(ierr); 3077 ierr = PetscOptionsReal("-mat_use_hash_table","Use hash table factor","MatMPIBAIJSetHashTableFactor",fact,&fact,NULL);CHKERRQ(ierr); 3078 if (fact <= 1.0) fact = 1.39; 3079 ierr = MatMPIBAIJSetHashTableFactor(B,fact);CHKERRQ(ierr); 3080 ierr = PetscInfo1(B,"Hash table Factor used %5.2f\n",fact);CHKERRQ(ierr); 3081 } 3082 ierr = PetscOptionsEnd();CHKERRQ(ierr); 3083 PetscFunctionReturn(0); 3084 } 3085 3086 /*MC 3087 MATBAIJ - MATBAIJ = "baij" - A matrix type to be used for block sparse matrices. 3088 3089 This matrix type is identical to MATSEQBAIJ when constructed with a single process communicator, 3090 and MATMPIBAIJ otherwise. 3091 3092 Options Database Keys: 3093 . -mat_type baij - sets the matrix type to "baij" during a call to MatSetFromOptions() 3094 3095 Level: beginner 3096 3097 .seealso: MatCreateBAIJ(),MATSEQBAIJ,MATMPIBAIJ, MatMPIBAIJSetPreallocation(), MatMPIBAIJSetPreallocationCSR() 3098 M*/ 3099 3100 #undef __FUNCT__ 3101 #define __FUNCT__ "MatMPIBAIJSetPreallocation" 3102 /*@C 3103 MatMPIBAIJSetPreallocation - Allocates memory for a sparse parallel matrix in block AIJ format 3104 (block compressed row). For good matrix assembly performance 3105 the user should preallocate the matrix storage by setting the parameters 3106 d_nz (or d_nnz) and o_nz (or o_nnz). By setting these parameters accurately, 3107 performance can be increased by more than a factor of 50. 3108 3109 Collective on Mat 3110 3111 Input Parameters: 3112 + B - the matrix 3113 . bs - size of block, the blocks are ALWAYS square. One can use MatSetBlockSizes() to set a different row and column blocksize but the row 3114 blocksize always defines the size of the blocks. The column blocksize sets the blocksize of the vectors obtained with MatCreateVecs() 3115 . d_nz - number of block nonzeros per block row in diagonal portion of local 3116 submatrix (same for all local rows) 3117 . d_nnz - array containing the number of block nonzeros in the various block rows 3118 of the in diagonal portion of the local (possibly different for each block 3119 row) or NULL. If you plan to factor the matrix you must leave room for the diagonal entry and 3120 set it even if it is zero. 3121 . o_nz - number of block nonzeros per block row in the off-diagonal portion of local 3122 submatrix (same for all local rows). 3123 - o_nnz - array containing the number of nonzeros in the various block rows of the 3124 off-diagonal portion of the local submatrix (possibly different for 3125 each block row) or NULL. 3126 3127 If the *_nnz parameter is given then the *_nz parameter is ignored 3128 3129 Options Database Keys: 3130 + -mat_block_size - size of the blocks to use 3131 - -mat_use_hash_table <fact> 3132 3133 Notes: 3134 If PETSC_DECIDE or PETSC_DETERMINE is used for a particular argument on one processor 3135 than it must be used on all processors that share the object for that argument. 3136 3137 Storage Information: 3138 For a square global matrix we define each processor's diagonal portion 3139 to be its local rows and the corresponding columns (a square submatrix); 3140 each processor's off-diagonal portion encompasses the remainder of the 3141 local matrix (a rectangular submatrix). 3142 3143 The user can specify preallocated storage for the diagonal part of 3144 the local submatrix with either d_nz or d_nnz (not both). Set 3145 d_nz=PETSC_DEFAULT and d_nnz=NULL for PETSc to control dynamic 3146 memory allocation. Likewise, specify preallocated storage for the 3147 off-diagonal part of the local submatrix with o_nz or o_nnz (not both). 3148 3149 Consider a processor that owns rows 3, 4 and 5 of a parallel matrix. In 3150 the figure below we depict these three local rows and all columns (0-11). 3151 3152 .vb 3153 0 1 2 3 4 5 6 7 8 9 10 11 3154 -------------------------- 3155 row 3 |o o o d d d o o o o o o 3156 row 4 |o o o d d d o o o o o o 3157 row 5 |o o o d d d o o o o o o 3158 -------------------------- 3159 .ve 3160 3161 Thus, any entries in the d locations are stored in the d (diagonal) 3162 submatrix, and any entries in the o locations are stored in the 3163 o (off-diagonal) submatrix. Note that the d and the o submatrices are 3164 stored simply in the MATSEQBAIJ format for compressed row storage. 3165 3166 Now d_nz should indicate the number of block nonzeros per row in the d matrix, 3167 and o_nz should indicate the number of block nonzeros per row in the o matrix. 3168 In general, for PDE problems in which most nonzeros are near the diagonal, 3169 one expects d_nz >> o_nz. For large problems you MUST preallocate memory 3170 or you will get TERRIBLE performance; see the users' manual chapter on 3171 matrices. 3172 3173 You can call MatGetInfo() to get information on how effective the preallocation was; 3174 for example the fields mallocs,nz_allocated,nz_used,nz_unneeded; 3175 You can also run with the option -info and look for messages with the string 3176 malloc in them to see if additional memory allocation was needed. 3177 3178 Level: intermediate 3179 3180 .keywords: matrix, block, aij, compressed row, sparse, parallel 3181 3182 .seealso: MatCreate(), MatCreateSeqBAIJ(), MatSetValues(), MatCreateBAIJ(), MatMPIBAIJSetPreallocationCSR(), PetscSplitOwnership() 3183 @*/ 3184 PetscErrorCode MatMPIBAIJSetPreallocation(Mat B,PetscInt bs,PetscInt d_nz,const PetscInt d_nnz[],PetscInt o_nz,const PetscInt o_nnz[]) 3185 { 3186 PetscErrorCode ierr; 3187 3188 PetscFunctionBegin; 3189 PetscValidHeaderSpecific(B,MAT_CLASSID,1); 3190 PetscValidType(B,1); 3191 PetscValidLogicalCollectiveInt(B,bs,2); 3192 ierr = PetscTryMethod(B,"MatMPIBAIJSetPreallocation_C",(Mat,PetscInt,PetscInt,const PetscInt[],PetscInt,const PetscInt[]),(B,bs,d_nz,d_nnz,o_nz,o_nnz));CHKERRQ(ierr); 3193 PetscFunctionReturn(0); 3194 } 3195 3196 #undef __FUNCT__ 3197 #define __FUNCT__ "MatCreateBAIJ" 3198 /*@C 3199 MatCreateBAIJ - Creates a sparse parallel matrix in block AIJ format 3200 (block compressed row). For good matrix assembly performance 3201 the user should preallocate the matrix storage by setting the parameters 3202 d_nz (or d_nnz) and o_nz (or o_nnz). By setting these parameters accurately, 3203 performance can be increased by more than a factor of 50. 3204 3205 Collective on MPI_Comm 3206 3207 Input Parameters: 3208 + comm - MPI communicator 3209 . bs - size of block, the blocks are ALWAYS square. One can use MatSetBlockSizes() to set a different row and column blocksize but the row 3210 blocksize always defines the size of the blocks. The column blocksize sets the blocksize of the vectors obtained with MatCreateVecs() 3211 . m - number of local rows (or PETSC_DECIDE to have calculated if M is given) 3212 This value should be the same as the local size used in creating the 3213 y vector for the matrix-vector product y = Ax. 3214 . n - number of local columns (or PETSC_DECIDE to have calculated if N is given) 3215 This value should be the same as the local size used in creating the 3216 x vector for the matrix-vector product y = Ax. 3217 . M - number of global rows (or PETSC_DETERMINE to have calculated if m is given) 3218 . N - number of global columns (or PETSC_DETERMINE to have calculated if n is given) 3219 . d_nz - number of nonzero blocks per block row in diagonal portion of local 3220 submatrix (same for all local rows) 3221 . d_nnz - array containing the number of nonzero blocks in the various block rows 3222 of the in diagonal portion of the local (possibly different for each block 3223 row) or NULL. If you plan to factor the matrix you must leave room for the diagonal entry 3224 and set it even if it is zero. 3225 . o_nz - number of nonzero blocks per block row in the off-diagonal portion of local 3226 submatrix (same for all local rows). 3227 - o_nnz - array containing the number of nonzero blocks in the various block rows of the 3228 off-diagonal portion of the local submatrix (possibly different for 3229 each block row) or NULL. 3230 3231 Output Parameter: 3232 . A - the matrix 3233 3234 Options Database Keys: 3235 + -mat_block_size - size of the blocks to use 3236 - -mat_use_hash_table <fact> 3237 3238 It is recommended that one use the MatCreate(), MatSetType() and/or MatSetFromOptions(), 3239 MatXXXXSetPreallocation() paradgm instead of this routine directly. 3240 [MatXXXXSetPreallocation() is, for example, MatSeqAIJSetPreallocation] 3241 3242 Notes: 3243 If the *_nnz parameter is given then the *_nz parameter is ignored 3244 3245 A nonzero block is any block that as 1 or more nonzeros in it 3246 3247 The user MUST specify either the local or global matrix dimensions 3248 (possibly both). 3249 3250 If PETSC_DECIDE or PETSC_DETERMINE is used for a particular argument on one processor 3251 than it must be used on all processors that share the object for that argument. 3252 3253 Storage Information: 3254 For a square global matrix we define each processor's diagonal portion 3255 to be its local rows and the corresponding columns (a square submatrix); 3256 each processor's off-diagonal portion encompasses the remainder of the 3257 local matrix (a rectangular submatrix). 3258 3259 The user can specify preallocated storage for the diagonal part of 3260 the local submatrix with either d_nz or d_nnz (not both). Set 3261 d_nz=PETSC_DEFAULT and d_nnz=NULL for PETSc to control dynamic 3262 memory allocation. Likewise, specify preallocated storage for the 3263 off-diagonal part of the local submatrix with o_nz or o_nnz (not both). 3264 3265 Consider a processor that owns rows 3, 4 and 5 of a parallel matrix. In 3266 the figure below we depict these three local rows and all columns (0-11). 3267 3268 .vb 3269 0 1 2 3 4 5 6 7 8 9 10 11 3270 -------------------------- 3271 row 3 |o o o d d d o o o o o o 3272 row 4 |o o o d d d o o o o o o 3273 row 5 |o o o d d d o o o o o o 3274 -------------------------- 3275 .ve 3276 3277 Thus, any entries in the d locations are stored in the d (diagonal) 3278 submatrix, and any entries in the o locations are stored in the 3279 o (off-diagonal) submatrix. Note that the d and the o submatrices are 3280 stored simply in the MATSEQBAIJ format for compressed row storage. 3281 3282 Now d_nz should indicate the number of block nonzeros per row in the d matrix, 3283 and o_nz should indicate the number of block nonzeros per row in the o matrix. 3284 In general, for PDE problems in which most nonzeros are near the diagonal, 3285 one expects d_nz >> o_nz. For large problems you MUST preallocate memory 3286 or you will get TERRIBLE performance; see the users' manual chapter on 3287 matrices. 3288 3289 Level: intermediate 3290 3291 .keywords: matrix, block, aij, compressed row, sparse, parallel 3292 3293 .seealso: MatCreate(), MatCreateSeqBAIJ(), MatSetValues(), MatCreateBAIJ(), MatMPIBAIJSetPreallocation(), MatMPIBAIJSetPreallocationCSR() 3294 @*/ 3295 PetscErrorCode MatCreateBAIJ(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) 3296 { 3297 PetscErrorCode ierr; 3298 PetscMPIInt size; 3299 3300 PetscFunctionBegin; 3301 ierr = MatCreate(comm,A);CHKERRQ(ierr); 3302 ierr = MatSetSizes(*A,m,n,M,N);CHKERRQ(ierr); 3303 ierr = MPI_Comm_size(comm,&size);CHKERRQ(ierr); 3304 if (size > 1) { 3305 ierr = MatSetType(*A,MATMPIBAIJ);CHKERRQ(ierr); 3306 ierr = MatMPIBAIJSetPreallocation(*A,bs,d_nz,d_nnz,o_nz,o_nnz);CHKERRQ(ierr); 3307 } else { 3308 ierr = MatSetType(*A,MATSEQBAIJ);CHKERRQ(ierr); 3309 ierr = MatSeqBAIJSetPreallocation(*A,bs,d_nz,d_nnz);CHKERRQ(ierr); 3310 } 3311 PetscFunctionReturn(0); 3312 } 3313 3314 #undef __FUNCT__ 3315 #define __FUNCT__ "MatDuplicate_MPIBAIJ" 3316 static PetscErrorCode MatDuplicate_MPIBAIJ(Mat matin,MatDuplicateOption cpvalues,Mat *newmat) 3317 { 3318 Mat mat; 3319 Mat_MPIBAIJ *a,*oldmat = (Mat_MPIBAIJ*)matin->data; 3320 PetscErrorCode ierr; 3321 PetscInt len=0; 3322 3323 PetscFunctionBegin; 3324 *newmat = 0; 3325 ierr = MatCreate(PetscObjectComm((PetscObject)matin),&mat);CHKERRQ(ierr); 3326 ierr = MatSetSizes(mat,matin->rmap->n,matin->cmap->n,matin->rmap->N,matin->cmap->N);CHKERRQ(ierr); 3327 ierr = MatSetType(mat,((PetscObject)matin)->type_name);CHKERRQ(ierr); 3328 ierr = PetscMemcpy(mat->ops,matin->ops,sizeof(struct _MatOps));CHKERRQ(ierr); 3329 3330 mat->factortype = matin->factortype; 3331 mat->preallocated = PETSC_TRUE; 3332 mat->assembled = PETSC_TRUE; 3333 mat->insertmode = NOT_SET_VALUES; 3334 3335 a = (Mat_MPIBAIJ*)mat->data; 3336 mat->rmap->bs = matin->rmap->bs; 3337 a->bs2 = oldmat->bs2; 3338 a->mbs = oldmat->mbs; 3339 a->nbs = oldmat->nbs; 3340 a->Mbs = oldmat->Mbs; 3341 a->Nbs = oldmat->Nbs; 3342 3343 ierr = PetscLayoutReference(matin->rmap,&mat->rmap);CHKERRQ(ierr); 3344 ierr = PetscLayoutReference(matin->cmap,&mat->cmap);CHKERRQ(ierr); 3345 3346 a->size = oldmat->size; 3347 a->rank = oldmat->rank; 3348 a->donotstash = oldmat->donotstash; 3349 a->roworiented = oldmat->roworiented; 3350 a->rowindices = 0; 3351 a->rowvalues = 0; 3352 a->getrowactive = PETSC_FALSE; 3353 a->barray = 0; 3354 a->rstartbs = oldmat->rstartbs; 3355 a->rendbs = oldmat->rendbs; 3356 a->cstartbs = oldmat->cstartbs; 3357 a->cendbs = oldmat->cendbs; 3358 3359 /* hash table stuff */ 3360 a->ht = 0; 3361 a->hd = 0; 3362 a->ht_size = 0; 3363 a->ht_flag = oldmat->ht_flag; 3364 a->ht_fact = oldmat->ht_fact; 3365 a->ht_total_ct = 0; 3366 a->ht_insert_ct = 0; 3367 3368 ierr = PetscMemcpy(a->rangebs,oldmat->rangebs,(a->size+1)*sizeof(PetscInt));CHKERRQ(ierr); 3369 if (oldmat->colmap) { 3370 #if defined(PETSC_USE_CTABLE) 3371 ierr = PetscTableCreateCopy(oldmat->colmap,&a->colmap);CHKERRQ(ierr); 3372 #else 3373 ierr = PetscMalloc1((a->Nbs),&a->colmap);CHKERRQ(ierr); 3374 ierr = PetscLogObjectMemory((PetscObject)mat,(a->Nbs)*sizeof(PetscInt));CHKERRQ(ierr); 3375 ierr = PetscMemcpy(a->colmap,oldmat->colmap,(a->Nbs)*sizeof(PetscInt));CHKERRQ(ierr); 3376 #endif 3377 } else a->colmap = 0; 3378 3379 if (oldmat->garray && (len = ((Mat_SeqBAIJ*)(oldmat->B->data))->nbs)) { 3380 ierr = PetscMalloc1(len,&a->garray);CHKERRQ(ierr); 3381 ierr = PetscLogObjectMemory((PetscObject)mat,len*sizeof(PetscInt));CHKERRQ(ierr); 3382 ierr = PetscMemcpy(a->garray,oldmat->garray,len*sizeof(PetscInt));CHKERRQ(ierr); 3383 } else a->garray = 0; 3384 3385 ierr = MatStashCreate_Private(PetscObjectComm((PetscObject)matin),matin->rmap->bs,&mat->bstash);CHKERRQ(ierr); 3386 ierr = VecDuplicate(oldmat->lvec,&a->lvec);CHKERRQ(ierr); 3387 ierr = PetscLogObjectParent((PetscObject)mat,(PetscObject)a->lvec);CHKERRQ(ierr); 3388 ierr = VecScatterCopy(oldmat->Mvctx,&a->Mvctx);CHKERRQ(ierr); 3389 ierr = PetscLogObjectParent((PetscObject)mat,(PetscObject)a->Mvctx);CHKERRQ(ierr); 3390 3391 ierr = MatDuplicate(oldmat->A,cpvalues,&a->A);CHKERRQ(ierr); 3392 ierr = PetscLogObjectParent((PetscObject)mat,(PetscObject)a->A);CHKERRQ(ierr); 3393 ierr = MatDuplicate(oldmat->B,cpvalues,&a->B);CHKERRQ(ierr); 3394 ierr = PetscLogObjectParent((PetscObject)mat,(PetscObject)a->B);CHKERRQ(ierr); 3395 ierr = PetscFunctionListDuplicate(((PetscObject)matin)->qlist,&((PetscObject)mat)->qlist);CHKERRQ(ierr); 3396 *newmat = mat; 3397 PetscFunctionReturn(0); 3398 } 3399 3400 #undef __FUNCT__ 3401 #define __FUNCT__ "MatLoad_MPIBAIJ" 3402 PetscErrorCode MatLoad_MPIBAIJ(Mat newmat,PetscViewer viewer) 3403 { 3404 PetscErrorCode ierr; 3405 int fd; 3406 PetscInt i,nz,j,rstart,rend; 3407 PetscScalar *vals,*buf; 3408 MPI_Comm comm; 3409 MPI_Status status; 3410 PetscMPIInt rank,size,maxnz; 3411 PetscInt header[4],*rowlengths = 0,M,N,m,*rowners,*cols; 3412 PetscInt *locrowlens = NULL,*procsnz = NULL,*browners = NULL; 3413 PetscInt jj,*mycols,*ibuf,bs=1,Mbs,mbs,extra_rows,mmax; 3414 PetscMPIInt tag = ((PetscObject)viewer)->tag; 3415 PetscInt *dlens = NULL,*odlens = NULL,*mask = NULL,*masked1 = NULL,*masked2 = NULL,rowcount,odcount; 3416 PetscInt dcount,kmax,k,nzcount,tmp,mend,sizesset=1,grows,gcols; 3417 3418 PetscFunctionBegin; 3419 ierr = PetscObjectGetComm((PetscObject)viewer,&comm);CHKERRQ(ierr); 3420 ierr = PetscOptionsBegin(comm,NULL,"Options for loading MPIBAIJ matrix 2","Mat");CHKERRQ(ierr); 3421 ierr = PetscOptionsInt("-matload_block_size","Set the blocksize used to store the matrix","MatLoad",bs,&bs,NULL);CHKERRQ(ierr); 3422 ierr = PetscOptionsEnd();CHKERRQ(ierr); 3423 3424 ierr = MPI_Comm_size(comm,&size);CHKERRQ(ierr); 3425 ierr = MPI_Comm_rank(comm,&rank);CHKERRQ(ierr); 3426 if (!rank) { 3427 ierr = PetscViewerBinaryGetDescriptor(viewer,&fd);CHKERRQ(ierr); 3428 ierr = PetscBinaryRead(fd,(char*)header,4,PETSC_INT);CHKERRQ(ierr); 3429 if (header[0] != MAT_FILE_CLASSID) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_FILE_UNEXPECTED,"not matrix object"); 3430 } 3431 3432 if (newmat->rmap->n < 0 && newmat->rmap->N < 0 && newmat->cmap->n < 0 && newmat->cmap->N < 0) sizesset = 0; 3433 3434 ierr = MPI_Bcast(header+1,3,MPIU_INT,0,comm);CHKERRQ(ierr); 3435 M = header[1]; N = header[2]; 3436 3437 /* If global rows/cols are set to PETSC_DECIDE, set it to the sizes given in the file */ 3438 if (sizesset && newmat->rmap->N < 0) newmat->rmap->N = M; 3439 if (sizesset && newmat->cmap->N < 0) newmat->cmap->N = N; 3440 3441 /* If global sizes are set, check if they are consistent with that given in the file */ 3442 if (sizesset) { 3443 ierr = MatGetSize(newmat,&grows,&gcols);CHKERRQ(ierr); 3444 } 3445 if (sizesset && newmat->rmap->N != grows) SETERRQ2(PETSC_COMM_SELF,PETSC_ERR_FILE_UNEXPECTED, "Inconsistent # of rows:Matrix in file has (%d) and input matrix has (%d)",M,grows); 3446 if (sizesset && newmat->cmap->N != gcols) SETERRQ2(PETSC_COMM_SELF,PETSC_ERR_FILE_UNEXPECTED, "Inconsistent # of cols:Matrix in file has (%d) and input matrix has (%d)",N,gcols); 3447 3448 if (M != N) SETERRQ(PetscObjectComm((PetscObject)viewer),PETSC_ERR_SUP,"Can only do square matrices"); 3449 3450 /* 3451 This code adds extra rows to make sure the number of rows is 3452 divisible by the blocksize 3453 */ 3454 Mbs = M/bs; 3455 extra_rows = bs - M + bs*Mbs; 3456 if (extra_rows == bs) extra_rows = 0; 3457 else Mbs++; 3458 if (extra_rows && !rank) { 3459 ierr = PetscInfo(viewer,"Padding loaded matrix to match blocksize\n");CHKERRQ(ierr); 3460 } 3461 3462 /* determine ownership of all rows */ 3463 if (newmat->rmap->n < 0) { /* PETSC_DECIDE */ 3464 mbs = Mbs/size + ((Mbs % size) > rank); 3465 m = mbs*bs; 3466 } else { /* User set */ 3467 m = newmat->rmap->n; 3468 mbs = m/bs; 3469 } 3470 ierr = PetscMalloc2(size+1,&rowners,size+1,&browners);CHKERRQ(ierr); 3471 ierr = MPI_Allgather(&mbs,1,MPIU_INT,rowners+1,1,MPIU_INT,comm);CHKERRQ(ierr); 3472 3473 /* process 0 needs enough room for process with most rows */ 3474 if (!rank) { 3475 mmax = rowners[1]; 3476 for (i=2; i<=size; i++) { 3477 mmax = PetscMax(mmax,rowners[i]); 3478 } 3479 mmax*=bs; 3480 } else mmax = -1; /* unused, but compiler warns anyway */ 3481 3482 rowners[0] = 0; 3483 for (i=2; i<=size; i++) rowners[i] += rowners[i-1]; 3484 for (i=0; i<=size; i++) browners[i] = rowners[i]*bs; 3485 rstart = rowners[rank]; 3486 rend = rowners[rank+1]; 3487 3488 /* distribute row lengths to all processors */ 3489 ierr = PetscMalloc1(m,&locrowlens);CHKERRQ(ierr); 3490 if (!rank) { 3491 mend = m; 3492 if (size == 1) mend = mend - extra_rows; 3493 ierr = PetscBinaryRead(fd,locrowlens,mend,PETSC_INT);CHKERRQ(ierr); 3494 for (j=mend; j<m; j++) locrowlens[j] = 1; 3495 ierr = PetscMalloc1(mmax,&rowlengths);CHKERRQ(ierr); 3496 ierr = PetscCalloc1(size,&procsnz);CHKERRQ(ierr); 3497 for (j=0; j<m; j++) { 3498 procsnz[0] += locrowlens[j]; 3499 } 3500 for (i=1; i<size; i++) { 3501 mend = browners[i+1] - browners[i]; 3502 if (i == size-1) mend = mend - extra_rows; 3503 ierr = PetscBinaryRead(fd,rowlengths,mend,PETSC_INT);CHKERRQ(ierr); 3504 for (j=mend; j<browners[i+1] - browners[i]; j++) rowlengths[j] = 1; 3505 /* calculate the number of nonzeros on each processor */ 3506 for (j=0; j<browners[i+1]-browners[i]; j++) { 3507 procsnz[i] += rowlengths[j]; 3508 } 3509 ierr = MPI_Send(rowlengths,browners[i+1]-browners[i],MPIU_INT,i,tag,comm);CHKERRQ(ierr); 3510 } 3511 ierr = PetscFree(rowlengths);CHKERRQ(ierr); 3512 } else { 3513 ierr = MPI_Recv(locrowlens,m,MPIU_INT,0,tag,comm,&status);CHKERRQ(ierr); 3514 } 3515 3516 if (!rank) { 3517 /* determine max buffer needed and allocate it */ 3518 maxnz = procsnz[0]; 3519 for (i=1; i<size; i++) { 3520 maxnz = PetscMax(maxnz,procsnz[i]); 3521 } 3522 ierr = PetscMalloc1(maxnz,&cols);CHKERRQ(ierr); 3523 3524 /* read in my part of the matrix column indices */ 3525 nz = procsnz[0]; 3526 ierr = PetscMalloc1((nz+1),&ibuf);CHKERRQ(ierr); 3527 mycols = ibuf; 3528 if (size == 1) nz -= extra_rows; 3529 ierr = PetscBinaryRead(fd,mycols,nz,PETSC_INT);CHKERRQ(ierr); 3530 if (size == 1) { 3531 for (i=0; i< extra_rows; i++) mycols[nz+i] = M+i; 3532 } 3533 3534 /* read in every ones (except the last) and ship off */ 3535 for (i=1; i<size-1; i++) { 3536 nz = procsnz[i]; 3537 ierr = PetscBinaryRead(fd,cols,nz,PETSC_INT);CHKERRQ(ierr); 3538 ierr = MPI_Send(cols,nz,MPIU_INT,i,tag,comm);CHKERRQ(ierr); 3539 } 3540 /* read in the stuff for the last proc */ 3541 if (size != 1) { 3542 nz = procsnz[size-1] - extra_rows; /* the extra rows are not on the disk */ 3543 ierr = PetscBinaryRead(fd,cols,nz,PETSC_INT);CHKERRQ(ierr); 3544 for (i=0; i<extra_rows; i++) cols[nz+i] = M+i; 3545 ierr = MPI_Send(cols,nz+extra_rows,MPIU_INT,size-1,tag,comm);CHKERRQ(ierr); 3546 } 3547 ierr = PetscFree(cols);CHKERRQ(ierr); 3548 } else { 3549 /* determine buffer space needed for message */ 3550 nz = 0; 3551 for (i=0; i<m; i++) { 3552 nz += locrowlens[i]; 3553 } 3554 ierr = PetscMalloc1((nz+1),&ibuf);CHKERRQ(ierr); 3555 mycols = ibuf; 3556 /* receive message of column indices*/ 3557 ierr = MPI_Recv(mycols,nz,MPIU_INT,0,tag,comm,&status);CHKERRQ(ierr); 3558 ierr = MPI_Get_count(&status,MPIU_INT,&maxnz);CHKERRQ(ierr); 3559 if (maxnz != nz) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_FILE_UNEXPECTED,"something is wrong with file"); 3560 } 3561 3562 /* loop over local rows, determining number of off diagonal entries */ 3563 ierr = PetscMalloc2(rend-rstart,&dlens,rend-rstart,&odlens);CHKERRQ(ierr); 3564 ierr = PetscCalloc3(Mbs,&mask,Mbs,&masked1,Mbs,&masked2);CHKERRQ(ierr); 3565 rowcount = 0; nzcount = 0; 3566 for (i=0; i<mbs; i++) { 3567 dcount = 0; 3568 odcount = 0; 3569 for (j=0; j<bs; j++) { 3570 kmax = locrowlens[rowcount]; 3571 for (k=0; k<kmax; k++) { 3572 tmp = mycols[nzcount++]/bs; 3573 if (!mask[tmp]) { 3574 mask[tmp] = 1; 3575 if (tmp < rstart || tmp >= rend) masked2[odcount++] = tmp; 3576 else masked1[dcount++] = tmp; 3577 } 3578 } 3579 rowcount++; 3580 } 3581 3582 dlens[i] = dcount; 3583 odlens[i] = odcount; 3584 3585 /* zero out the mask elements we set */ 3586 for (j=0; j<dcount; j++) mask[masked1[j]] = 0; 3587 for (j=0; j<odcount; j++) mask[masked2[j]] = 0; 3588 } 3589 3590 3591 if (!sizesset) { 3592 ierr = MatSetSizes(newmat,m,m,M+extra_rows,N+extra_rows);CHKERRQ(ierr); 3593 } 3594 ierr = MatMPIBAIJSetPreallocation(newmat,bs,0,dlens,0,odlens);CHKERRQ(ierr); 3595 3596 if (!rank) { 3597 ierr = PetscMalloc1((maxnz+1),&buf);CHKERRQ(ierr); 3598 /* read in my part of the matrix numerical values */ 3599 nz = procsnz[0]; 3600 vals = buf; 3601 mycols = ibuf; 3602 if (size == 1) nz -= extra_rows; 3603 ierr = PetscBinaryRead(fd,vals,nz,PETSC_SCALAR);CHKERRQ(ierr); 3604 if (size == 1) { 3605 for (i=0; i< extra_rows; i++) vals[nz+i] = 1.0; 3606 } 3607 3608 /* insert into matrix */ 3609 jj = rstart*bs; 3610 for (i=0; i<m; i++) { 3611 ierr = MatSetValues_MPIBAIJ(newmat,1,&jj,locrowlens[i],mycols,vals,INSERT_VALUES);CHKERRQ(ierr); 3612 mycols += locrowlens[i]; 3613 vals += locrowlens[i]; 3614 jj++; 3615 } 3616 /* read in other processors (except the last one) and ship out */ 3617 for (i=1; i<size-1; i++) { 3618 nz = procsnz[i]; 3619 vals = buf; 3620 ierr = PetscBinaryRead(fd,vals,nz,PETSC_SCALAR);CHKERRQ(ierr); 3621 ierr = MPIULong_Send(vals,nz,MPIU_SCALAR,i,((PetscObject)newmat)->tag,comm);CHKERRQ(ierr); 3622 } 3623 /* the last proc */ 3624 if (size != 1) { 3625 nz = procsnz[i] - extra_rows; 3626 vals = buf; 3627 ierr = PetscBinaryRead(fd,vals,nz,PETSC_SCALAR);CHKERRQ(ierr); 3628 for (i=0; i<extra_rows; i++) vals[nz+i] = 1.0; 3629 ierr = MPIULong_Send(vals,nz+extra_rows,MPIU_SCALAR,size-1,((PetscObject)newmat)->tag,comm);CHKERRQ(ierr); 3630 } 3631 ierr = PetscFree(procsnz);CHKERRQ(ierr); 3632 } else { 3633 /* receive numeric values */ 3634 ierr = PetscMalloc1((nz+1),&buf);CHKERRQ(ierr); 3635 3636 /* receive message of values*/ 3637 vals = buf; 3638 mycols = ibuf; 3639 ierr = MPIULong_Recv(vals,nz,MPIU_SCALAR,0,((PetscObject)newmat)->tag,comm);CHKERRQ(ierr); 3640 3641 /* insert into matrix */ 3642 jj = rstart*bs; 3643 for (i=0; i<m; i++) { 3644 ierr = MatSetValues_MPIBAIJ(newmat,1,&jj,locrowlens[i],mycols,vals,INSERT_VALUES);CHKERRQ(ierr); 3645 mycols += locrowlens[i]; 3646 vals += locrowlens[i]; 3647 jj++; 3648 } 3649 } 3650 ierr = PetscFree(locrowlens);CHKERRQ(ierr); 3651 ierr = PetscFree(buf);CHKERRQ(ierr); 3652 ierr = PetscFree(ibuf);CHKERRQ(ierr); 3653 ierr = PetscFree2(rowners,browners);CHKERRQ(ierr); 3654 ierr = PetscFree2(dlens,odlens);CHKERRQ(ierr); 3655 ierr = PetscFree3(mask,masked1,masked2);CHKERRQ(ierr); 3656 ierr = MatAssemblyBegin(newmat,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 3657 ierr = MatAssemblyEnd(newmat,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 3658 PetscFunctionReturn(0); 3659 } 3660 3661 #undef __FUNCT__ 3662 #define __FUNCT__ "MatMPIBAIJSetHashTableFactor" 3663 /*@ 3664 MatMPIBAIJSetHashTableFactor - Sets the factor required to compute the size of the HashTable. 3665 3666 Input Parameters: 3667 . mat - the matrix 3668 . fact - factor 3669 3670 Not Collective, each process can use a different factor 3671 3672 Level: advanced 3673 3674 Notes: 3675 This can also be set by the command line option: -mat_use_hash_table <fact> 3676 3677 .keywords: matrix, hashtable, factor, HT 3678 3679 .seealso: MatSetOption() 3680 @*/ 3681 PetscErrorCode MatMPIBAIJSetHashTableFactor(Mat mat,PetscReal fact) 3682 { 3683 PetscErrorCode ierr; 3684 3685 PetscFunctionBegin; 3686 ierr = PetscTryMethod(mat,"MatSetHashTableFactor_C",(Mat,PetscReal),(mat,fact));CHKERRQ(ierr); 3687 PetscFunctionReturn(0); 3688 } 3689 3690 #undef __FUNCT__ 3691 #define __FUNCT__ "MatSetHashTableFactor_MPIBAIJ" 3692 PetscErrorCode MatSetHashTableFactor_MPIBAIJ(Mat mat,PetscReal fact) 3693 { 3694 Mat_MPIBAIJ *baij; 3695 3696 PetscFunctionBegin; 3697 baij = (Mat_MPIBAIJ*)mat->data; 3698 baij->ht_fact = fact; 3699 PetscFunctionReturn(0); 3700 } 3701 3702 #undef __FUNCT__ 3703 #define __FUNCT__ "MatMPIBAIJGetSeqBAIJ" 3704 PetscErrorCode MatMPIBAIJGetSeqBAIJ(Mat A,Mat *Ad,Mat *Ao,const PetscInt *colmap[]) 3705 { 3706 Mat_MPIBAIJ *a = (Mat_MPIBAIJ*)A->data; 3707 3708 PetscFunctionBegin; 3709 if (Ad) *Ad = a->A; 3710 if (Ao) *Ao = a->B; 3711 if (colmap) *colmap = a->garray; 3712 PetscFunctionReturn(0); 3713 } 3714 3715 /* 3716 Special version for direct calls from Fortran (to eliminate two function call overheads 3717 */ 3718 #if defined(PETSC_HAVE_FORTRAN_CAPS) 3719 #define matmpibaijsetvaluesblocked_ MATMPIBAIJSETVALUESBLOCKED 3720 #elif !defined(PETSC_HAVE_FORTRAN_UNDERSCORE) 3721 #define matmpibaijsetvaluesblocked_ matmpibaijsetvaluesblocked 3722 #endif 3723 3724 #undef __FUNCT__ 3725 #define __FUNCT__ "matmpibiajsetvaluesblocked" 3726 /*@C 3727 MatMPIBAIJSetValuesBlocked - Direct Fortran call to replace call to MatSetValuesBlocked() 3728 3729 Collective on Mat 3730 3731 Input Parameters: 3732 + mat - the matrix 3733 . min - number of input rows 3734 . im - input rows 3735 . nin - number of input columns 3736 . in - input columns 3737 . v - numerical values input 3738 - addvin - INSERT_VALUES or ADD_VALUES 3739 3740 Notes: This has a complete copy of MatSetValuesBlocked_MPIBAIJ() which is terrible code un-reuse. 3741 3742 Level: advanced 3743 3744 .seealso: MatSetValuesBlocked() 3745 @*/ 3746 PetscErrorCode matmpibaijsetvaluesblocked_(Mat *matin,PetscInt *min,const PetscInt im[],PetscInt *nin,const PetscInt in[],const MatScalar v[],InsertMode *addvin) 3747 { 3748 /* convert input arguments to C version */ 3749 Mat mat = *matin; 3750 PetscInt m = *min, n = *nin; 3751 InsertMode addv = *addvin; 3752 3753 Mat_MPIBAIJ *baij = (Mat_MPIBAIJ*)mat->data; 3754 const MatScalar *value; 3755 MatScalar *barray = baij->barray; 3756 PetscBool roworiented = baij->roworiented; 3757 PetscErrorCode ierr; 3758 PetscInt i,j,ii,jj,row,col,rstart=baij->rstartbs; 3759 PetscInt rend=baij->rendbs,cstart=baij->cstartbs,stepval; 3760 PetscInt cend=baij->cendbs,bs=mat->rmap->bs,bs2=baij->bs2; 3761 3762 PetscFunctionBegin; 3763 /* tasks normally handled by MatSetValuesBlocked() */ 3764 if (mat->insertmode == NOT_SET_VALUES) mat->insertmode = addv; 3765 #if defined(PETSC_USE_DEBUG) 3766 else if (mat->insertmode != addv) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_WRONGSTATE,"Cannot mix add values and insert values"); 3767 if (mat->factortype) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_WRONGSTATE,"Not for factored matrix"); 3768 #endif 3769 if (mat->assembled) { 3770 mat->was_assembled = PETSC_TRUE; 3771 mat->assembled = PETSC_FALSE; 3772 } 3773 ierr = PetscLogEventBegin(MAT_SetValues,mat,0,0,0);CHKERRQ(ierr); 3774 3775 3776 if (!barray) { 3777 ierr = PetscMalloc1(bs2,&barray);CHKERRQ(ierr); 3778 baij->barray = barray; 3779 } 3780 3781 if (roworiented) stepval = (n-1)*bs; 3782 else stepval = (m-1)*bs; 3783 3784 for (i=0; i<m; i++) { 3785 if (im[i] < 0) continue; 3786 #if defined(PETSC_USE_DEBUG) 3787 if (im[i] >= baij->Mbs) SETERRQ2(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"Row too large, row %D max %D",im[i],baij->Mbs-1); 3788 #endif 3789 if (im[i] >= rstart && im[i] < rend) { 3790 row = im[i] - rstart; 3791 for (j=0; j<n; j++) { 3792 /* If NumCol = 1 then a copy is not required */ 3793 if ((roworiented) && (n == 1)) { 3794 barray = (MatScalar*)v + i*bs2; 3795 } else if ((!roworiented) && (m == 1)) { 3796 barray = (MatScalar*)v + j*bs2; 3797 } else { /* Here a copy is required */ 3798 if (roworiented) { 3799 value = v + i*(stepval+bs)*bs + j*bs; 3800 } else { 3801 value = v + j*(stepval+bs)*bs + i*bs; 3802 } 3803 for (ii=0; ii<bs; ii++,value+=stepval) { 3804 for (jj=0; jj<bs; jj++) { 3805 *barray++ = *value++; 3806 } 3807 } 3808 barray -=bs2; 3809 } 3810 3811 if (in[j] >= cstart && in[j] < cend) { 3812 col = in[j] - cstart; 3813 ierr = MatSetValuesBlocked_SeqBAIJ(baij->A,1,&row,1,&col,barray,addv);CHKERRQ(ierr); 3814 } else if (in[j] < 0) continue; 3815 #if defined(PETSC_USE_DEBUG) 3816 else if (in[j] >= baij->Nbs) SETERRQ2(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"Column too large, col %D max %D",in[j],baij->Nbs-1); 3817 #endif 3818 else { 3819 if (mat->was_assembled) { 3820 if (!baij->colmap) { 3821 ierr = MatCreateColmap_MPIBAIJ_Private(mat);CHKERRQ(ierr); 3822 } 3823 3824 #if defined(PETSC_USE_DEBUG) 3825 #if defined(PETSC_USE_CTABLE) 3826 { PetscInt data; 3827 ierr = PetscTableFind(baij->colmap,in[j]+1,&data);CHKERRQ(ierr); 3828 if ((data - 1) % bs) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_PLIB,"Incorrect colmap"); 3829 } 3830 #else 3831 if ((baij->colmap[in[j]] - 1) % bs) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_PLIB,"Incorrect colmap"); 3832 #endif 3833 #endif 3834 #if defined(PETSC_USE_CTABLE) 3835 ierr = PetscTableFind(baij->colmap,in[j]+1,&col);CHKERRQ(ierr); 3836 col = (col - 1)/bs; 3837 #else 3838 col = (baij->colmap[in[j]] - 1)/bs; 3839 #endif 3840 if (col < 0 && !((Mat_SeqBAIJ*)(baij->A->data))->nonew) { 3841 ierr = MatDisAssemble_MPIBAIJ(mat);CHKERRQ(ierr); 3842 col = in[j]; 3843 } 3844 } else col = in[j]; 3845 ierr = MatSetValuesBlocked_SeqBAIJ(baij->B,1,&row,1,&col,barray,addv);CHKERRQ(ierr); 3846 } 3847 } 3848 } else { 3849 if (!baij->donotstash) { 3850 if (roworiented) { 3851 ierr = MatStashValuesRowBlocked_Private(&mat->bstash,im[i],n,in,v,m,n,i);CHKERRQ(ierr); 3852 } else { 3853 ierr = MatStashValuesColBlocked_Private(&mat->bstash,im[i],n,in,v,m,n,i);CHKERRQ(ierr); 3854 } 3855 } 3856 } 3857 } 3858 3859 /* task normally handled by MatSetValuesBlocked() */ 3860 ierr = PetscLogEventEnd(MAT_SetValues,mat,0,0,0);CHKERRQ(ierr); 3861 PetscFunctionReturn(0); 3862 } 3863 3864 #undef __FUNCT__ 3865 #define __FUNCT__ "MatCreateMPIBAIJWithArrays" 3866 /*@ 3867 MatCreateMPIBAIJWithArrays - creates a MPI BAIJ matrix using arrays that contain in standard 3868 CSR format the local rows. 3869 3870 Collective on MPI_Comm 3871 3872 Input Parameters: 3873 + comm - MPI communicator 3874 . bs - the block size, only a block size of 1 is supported 3875 . m - number of local rows (Cannot be PETSC_DECIDE) 3876 . n - This value should be the same as the local size used in creating the 3877 x vector for the matrix-vector product y = Ax. (or PETSC_DECIDE to have 3878 calculated if N is given) For square matrices n is almost always m. 3879 . M - number of global rows (or PETSC_DETERMINE to have calculated if m is given) 3880 . N - number of global columns (or PETSC_DETERMINE to have calculated if n is given) 3881 . i - row indices 3882 . j - column indices 3883 - a - matrix values 3884 3885 Output Parameter: 3886 . mat - the matrix 3887 3888 Level: intermediate 3889 3890 Notes: 3891 The i, j, and a arrays ARE copied by this routine into the internal format used by PETSc; 3892 thus you CANNOT change the matrix entries by changing the values of a[] after you have 3893 called this routine. Use MatCreateMPIAIJWithSplitArrays() to avoid needing to copy the arrays. 3894 3895 The order of the entries in values is the same as the block compressed sparse row storage format; that is, it is 3896 the same as a three dimensional array in Fortran values(bs,bs,nnz) that contains the first column of the first 3897 block, followed by the second column of the first block etc etc. That is, the blocks are contiguous in memory 3898 with column-major ordering within blocks. 3899 3900 The i and j indices are 0 based, and i indices are indices corresponding to the local j array. 3901 3902 .keywords: matrix, aij, compressed row, sparse, parallel 3903 3904 .seealso: MatCreate(), MatCreateSeqAIJ(), MatSetValues(), MatMPIAIJSetPreallocation(), MatMPIAIJSetPreallocationCSR(), 3905 MPIAIJ, MatCreateAIJ(), MatCreateMPIAIJWithSplitArrays() 3906 @*/ 3907 PetscErrorCode MatCreateMPIBAIJWithArrays(MPI_Comm comm,PetscInt bs,PetscInt m,PetscInt n,PetscInt M,PetscInt N,const PetscInt i[],const PetscInt j[],const PetscScalar a[],Mat *mat) 3908 { 3909 PetscErrorCode ierr; 3910 3911 PetscFunctionBegin; 3912 if (i[0]) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"i (row indices) must start with 0"); 3913 if (m < 0) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"local number of rows (m) cannot be PETSC_DECIDE, or negative"); 3914 ierr = MatCreate(comm,mat);CHKERRQ(ierr); 3915 ierr = MatSetSizes(*mat,m,n,M,N);CHKERRQ(ierr); 3916 ierr = MatSetType(*mat,MATMPISBAIJ);CHKERRQ(ierr); 3917 ierr = MatSetOption(*mat,MAT_ROW_ORIENTED,PETSC_FALSE);CHKERRQ(ierr); 3918 ierr = MatMPIBAIJSetPreallocationCSR(*mat,bs,i,j,a);CHKERRQ(ierr); 3919 ierr = MatSetOption(*mat,MAT_ROW_ORIENTED,PETSC_TRUE);CHKERRQ(ierr); 3920 PetscFunctionReturn(0); 3921 } 3922