1 /*$Id: mpibaij.c,v 1.234 2001/09/25 22:56:49 balay Exp $*/ 2 3 #include "src/mat/impls/baij/mpi/mpibaij.h" /*I "petscmat.h" I*/ 4 #include "src/vec/vecimpl.h" 5 6 EXTERN int MatSetUpMultiply_MPIBAIJ(Mat); 7 EXTERN int DisAssemble_MPIBAIJ(Mat); 8 EXTERN int MatIncreaseOverlap_MPIBAIJ(Mat,int,IS *,int); 9 EXTERN int MatGetSubMatrices_MPIBAIJ(Mat,int,IS *,IS *,MatReuse,Mat **); 10 EXTERN int MatGetValues_SeqBAIJ(Mat,int,int *,int,int *,PetscScalar *); 11 EXTERN int MatSetValues_SeqBAIJ(Mat,int,int *,int,int *,PetscScalar *,InsertMode); 12 EXTERN int MatSetValuesBlocked_SeqBAIJ(Mat,int,int*,int,int*,PetscScalar*,InsertMode); 13 EXTERN int MatGetRow_SeqBAIJ(Mat,int,int*,int**,PetscScalar**); 14 EXTERN int MatRestoreRow_SeqBAIJ(Mat,int,int*,int**,PetscScalar**); 15 EXTERN int MatPrintHelp_SeqBAIJ(Mat); 16 EXTERN int MatZeroRows_SeqBAIJ(Mat,IS,PetscScalar*); 17 18 /* UGLY, ugly, ugly 19 When MatScalar == PetscScalar the function MatSetValuesBlocked_MPIBAIJ_MatScalar() does 20 not exist. Otherwise ..._MatScalar() takes matrix elements in single precision and 21 inserts them into the single precision data structure. The function MatSetValuesBlocked_MPIBAIJ() 22 converts the entries into single precision and then calls ..._MatScalar() to put them 23 into the single precision data structures. 24 */ 25 #if defined(PETSC_USE_MAT_SINGLE) 26 EXTERN int MatSetValuesBlocked_SeqBAIJ_MatScalar(Mat,int,int*,int,int*,MatScalar*,InsertMode); 27 EXTERN int MatSetValues_MPIBAIJ_MatScalar(Mat,int,int*,int,int*,MatScalar*,InsertMode); 28 EXTERN int MatSetValuesBlocked_MPIBAIJ_MatScalar(Mat,int,int*,int,int*,MatScalar*,InsertMode); 29 EXTERN int MatSetValues_MPIBAIJ_HT_MatScalar(Mat,int,int*,int,int*,MatScalar*,InsertMode); 30 EXTERN int MatSetValuesBlocked_MPIBAIJ_HT_MatScalar(Mat,int,int*,int,int*,MatScalar*,InsertMode); 31 #else 32 #define MatSetValuesBlocked_SeqBAIJ_MatScalar MatSetValuesBlocked_SeqBAIJ 33 #define MatSetValues_MPIBAIJ_MatScalar MatSetValues_MPIBAIJ 34 #define MatSetValuesBlocked_MPIBAIJ_MatScalar MatSetValuesBlocked_MPIBAIJ 35 #define MatSetValues_MPIBAIJ_HT_MatScalar MatSetValues_MPIBAIJ_HT 36 #define MatSetValuesBlocked_MPIBAIJ_HT_MatScalar MatSetValuesBlocked_MPIBAIJ_HT 37 #endif 38 39 #undef __FUNCT__ 40 #define __FUNCT__ "MatGetRowMax_MPIBAIJ" 41 int MatGetRowMax_MPIBAIJ(Mat A,Vec v) 42 { 43 Mat_MPIBAIJ *a = (Mat_MPIBAIJ*)A->data; 44 int ierr,i; 45 PetscScalar *va,*vb; 46 Vec vtmp; 47 48 PetscFunctionBegin; 49 50 ierr = MatGetRowMax(a->A,v);CHKERRQ(ierr); 51 ierr = VecGetArray(v,&va);CHKERRQ(ierr); 52 53 ierr = VecCreateSeq(PETSC_COMM_SELF,A->m,&vtmp);CHKERRQ(ierr); 54 ierr = MatGetRowMax(a->B,vtmp);CHKERRQ(ierr); 55 ierr = VecGetArray(vtmp,&vb);CHKERRQ(ierr); 56 57 for (i=0; i<A->m; i++){ 58 if (PetscAbsScalar(va[i]) < PetscAbsScalar(vb[i])) va[i] = vb[i]; 59 } 60 61 ierr = VecRestoreArray(v,&va);CHKERRQ(ierr); 62 ierr = VecRestoreArray(vtmp,&vb);CHKERRQ(ierr); 63 ierr = VecDestroy(vtmp);CHKERRQ(ierr); 64 65 PetscFunctionReturn(0); 66 } 67 68 EXTERN_C_BEGIN 69 #undef __FUNCT__ 70 #define __FUNCT__ "MatStoreValues_MPIBAIJ" 71 int MatStoreValues_MPIBAIJ(Mat mat) 72 { 73 Mat_MPIBAIJ *aij = (Mat_MPIBAIJ *)mat->data; 74 int ierr; 75 76 PetscFunctionBegin; 77 ierr = MatStoreValues(aij->A);CHKERRQ(ierr); 78 ierr = MatStoreValues(aij->B);CHKERRQ(ierr); 79 PetscFunctionReturn(0); 80 } 81 EXTERN_C_END 82 83 EXTERN_C_BEGIN 84 #undef __FUNCT__ 85 #define __FUNCT__ "MatRetrieveValues_MPIBAIJ" 86 int MatRetrieveValues_MPIBAIJ(Mat mat) 87 { 88 Mat_MPIBAIJ *aij = (Mat_MPIBAIJ *)mat->data; 89 int ierr; 90 91 PetscFunctionBegin; 92 ierr = MatRetrieveValues(aij->A);CHKERRQ(ierr); 93 ierr = MatRetrieveValues(aij->B);CHKERRQ(ierr); 94 PetscFunctionReturn(0); 95 } 96 EXTERN_C_END 97 98 /* 99 Local utility routine that creates a mapping from the global column 100 number to the local number in the off-diagonal part of the local 101 storage of the matrix. This is done in a non scable way since the 102 length of colmap equals the global matrix length. 103 */ 104 #undef __FUNCT__ 105 #define __FUNCT__ "CreateColmap_MPIBAIJ_Private" 106 static int CreateColmap_MPIBAIJ_Private(Mat mat) 107 { 108 Mat_MPIBAIJ *baij = (Mat_MPIBAIJ*)mat->data; 109 Mat_SeqBAIJ *B = (Mat_SeqBAIJ*)baij->B->data; 110 int nbs = B->nbs,i,bs=B->bs,ierr; 111 112 PetscFunctionBegin; 113 #if defined (PETSC_USE_CTABLE) 114 ierr = PetscTableCreate(baij->nbs,&baij->colmap);CHKERRQ(ierr); 115 for (i=0; i<nbs; i++){ 116 ierr = PetscTableAdd(baij->colmap,baij->garray[i]+1,i*bs+1);CHKERRQ(ierr); 117 } 118 #else 119 ierr = PetscMalloc((baij->Nbs+1)*sizeof(int),&baij->colmap);CHKERRQ(ierr); 120 PetscLogObjectMemory(mat,baij->Nbs*sizeof(int)); 121 ierr = PetscMemzero(baij->colmap,baij->Nbs*sizeof(int));CHKERRQ(ierr); 122 for (i=0; i<nbs; i++) baij->colmap[baij->garray[i]] = i*bs+1; 123 #endif 124 PetscFunctionReturn(0); 125 } 126 127 #define CHUNKSIZE 10 128 129 #define MatSetValues_SeqBAIJ_A_Private(row,col,value,addv) \ 130 { \ 131 \ 132 brow = row/bs; \ 133 rp = aj + ai[brow]; ap = aa + bs2*ai[brow]; \ 134 rmax = aimax[brow]; nrow = ailen[brow]; \ 135 bcol = col/bs; \ 136 ridx = row % bs; cidx = col % bs; \ 137 low = 0; high = nrow; \ 138 while (high-low > 3) { \ 139 t = (low+high)/2; \ 140 if (rp[t] > bcol) high = t; \ 141 else low = t; \ 142 } \ 143 for (_i=low; _i<high; _i++) { \ 144 if (rp[_i] > bcol) break; \ 145 if (rp[_i] == bcol) { \ 146 bap = ap + bs2*_i + bs*cidx + ridx; \ 147 if (addv == ADD_VALUES) *bap += value; \ 148 else *bap = value; \ 149 goto a_noinsert; \ 150 } \ 151 } \ 152 if (a->nonew == 1) goto a_noinsert; \ 153 else if (a->nonew == -1) SETERRQ(PETSC_ERR_ARG_OUTOFRANGE,"Inserting a new nonzero into matrix"); \ 154 if (nrow >= rmax) { \ 155 /* there is no extra room in row, therefore enlarge */ \ 156 int new_nz = ai[a->mbs] + CHUNKSIZE,len,*new_i,*new_j; \ 157 MatScalar *new_a; \ 158 \ 159 if (a->nonew == -2) SETERRQ(PETSC_ERR_ARG_OUTOFRANGE,"Inserting a new nonzero in the matrix"); \ 160 \ 161 /* malloc new storage space */ \ 162 len = new_nz*(sizeof(int)+bs2*sizeof(MatScalar))+(a->mbs+1)*sizeof(int); \ 163 ierr = PetscMalloc(len,&new_a);CHKERRQ(ierr); \ 164 new_j = (int*)(new_a + bs2*new_nz); \ 165 new_i = new_j + new_nz; \ 166 \ 167 /* copy over old data into new slots */ \ 168 for (ii=0; ii<brow+1; ii++) {new_i[ii] = ai[ii];} \ 169 for (ii=brow+1; ii<a->mbs+1; ii++) {new_i[ii] = ai[ii]+CHUNKSIZE;} \ 170 ierr = PetscMemcpy(new_j,aj,(ai[brow]+nrow)*sizeof(int));CHKERRQ(ierr); \ 171 len = (new_nz - CHUNKSIZE - ai[brow] - nrow); \ 172 ierr = PetscMemcpy(new_j+ai[brow]+nrow+CHUNKSIZE,aj+ai[brow]+nrow,len*sizeof(int));CHKERRQ(ierr); \ 173 ierr = PetscMemcpy(new_a,aa,(ai[brow]+nrow)*bs2*sizeof(MatScalar));CHKERRQ(ierr); \ 174 ierr = PetscMemzero(new_a+bs2*(ai[brow]+nrow),bs2*CHUNKSIZE*sizeof(PetscScalar));CHKERRQ(ierr); \ 175 ierr = PetscMemcpy(new_a+bs2*(ai[brow]+nrow+CHUNKSIZE), \ 176 aa+bs2*(ai[brow]+nrow),bs2*len*sizeof(MatScalar));CHKERRQ(ierr); \ 177 /* free up old matrix storage */ \ 178 ierr = PetscFree(a->a);CHKERRQ(ierr); \ 179 if (!a->singlemalloc) { \ 180 ierr = PetscFree(a->i);CHKERRQ(ierr); \ 181 ierr = PetscFree(a->j);CHKERRQ(ierr);\ 182 } \ 183 aa = a->a = new_a; ai = a->i = new_i; aj = a->j = new_j; \ 184 a->singlemalloc = PETSC_TRUE; \ 185 \ 186 rp = aj + ai[brow]; ap = aa + bs2*ai[brow]; \ 187 rmax = aimax[brow] = aimax[brow] + CHUNKSIZE; \ 188 PetscLogObjectMemory(A,CHUNKSIZE*(sizeof(int) + bs2*sizeof(MatScalar))); \ 189 a->maxnz += bs2*CHUNKSIZE; \ 190 a->reallocs++; \ 191 a->nz++; \ 192 } \ 193 N = nrow++ - 1; \ 194 /* shift up all the later entries in this row */ \ 195 for (ii=N; ii>=_i; ii--) { \ 196 rp[ii+1] = rp[ii]; \ 197 ierr = PetscMemcpy(ap+bs2*(ii+1),ap+bs2*(ii),bs2*sizeof(MatScalar));CHKERRQ(ierr); \ 198 } \ 199 if (N>=_i) { ierr = PetscMemzero(ap+bs2*_i,bs2*sizeof(MatScalar));CHKERRQ(ierr); } \ 200 rp[_i] = bcol; \ 201 ap[bs2*_i + bs*cidx + ridx] = value; \ 202 a_noinsert:; \ 203 ailen[brow] = nrow; \ 204 } 205 206 #define MatSetValues_SeqBAIJ_B_Private(row,col,value,addv) \ 207 { \ 208 brow = row/bs; \ 209 rp = bj + bi[brow]; ap = ba + bs2*bi[brow]; \ 210 rmax = bimax[brow]; nrow = bilen[brow]; \ 211 bcol = col/bs; \ 212 ridx = row % bs; cidx = col % bs; \ 213 low = 0; high = nrow; \ 214 while (high-low > 3) { \ 215 t = (low+high)/2; \ 216 if (rp[t] > bcol) high = t; \ 217 else low = t; \ 218 } \ 219 for (_i=low; _i<high; _i++) { \ 220 if (rp[_i] > bcol) break; \ 221 if (rp[_i] == bcol) { \ 222 bap = ap + bs2*_i + bs*cidx + ridx; \ 223 if (addv == ADD_VALUES) *bap += value; \ 224 else *bap = value; \ 225 goto b_noinsert; \ 226 } \ 227 } \ 228 if (b->nonew == 1) goto b_noinsert; \ 229 else if (b->nonew == -1) SETERRQ(PETSC_ERR_ARG_OUTOFRANGE,"Inserting a new nonzero into matrix"); \ 230 if (nrow >= rmax) { \ 231 /* there is no extra room in row, therefore enlarge */ \ 232 int new_nz = bi[b->mbs] + CHUNKSIZE,len,*new_i,*new_j; \ 233 MatScalar *new_a; \ 234 \ 235 if (b->nonew == -2) SETERRQ(PETSC_ERR_ARG_OUTOFRANGE,"Inserting a new nonzero in the matrix"); \ 236 \ 237 /* malloc new storage space */ \ 238 len = new_nz*(sizeof(int)+bs2*sizeof(MatScalar))+(b->mbs+1)*sizeof(int); \ 239 ierr = PetscMalloc(len,&new_a);CHKERRQ(ierr); \ 240 new_j = (int*)(new_a + bs2*new_nz); \ 241 new_i = new_j + new_nz; \ 242 \ 243 /* copy over old data into new slots */ \ 244 for (ii=0; ii<brow+1; ii++) {new_i[ii] = bi[ii];} \ 245 for (ii=brow+1; ii<b->mbs+1; ii++) {new_i[ii] = bi[ii]+CHUNKSIZE;} \ 246 ierr = PetscMemcpy(new_j,bj,(bi[brow]+nrow)*sizeof(int));CHKERRQ(ierr); \ 247 len = (new_nz - CHUNKSIZE - bi[brow] - nrow); \ 248 ierr = PetscMemcpy(new_j+bi[brow]+nrow+CHUNKSIZE,bj+bi[brow]+nrow,len*sizeof(int));CHKERRQ(ierr); \ 249 ierr = PetscMemcpy(new_a,ba,(bi[brow]+nrow)*bs2*sizeof(MatScalar));CHKERRQ(ierr); \ 250 ierr = PetscMemzero(new_a+bs2*(bi[brow]+nrow),bs2*CHUNKSIZE*sizeof(MatScalar));CHKERRQ(ierr); \ 251 ierr = PetscMemcpy(new_a+bs2*(bi[brow]+nrow+CHUNKSIZE), \ 252 ba+bs2*(bi[brow]+nrow),bs2*len*sizeof(MatScalar));CHKERRQ(ierr); \ 253 /* free up old matrix storage */ \ 254 ierr = PetscFree(b->a);CHKERRQ(ierr); \ 255 if (!b->singlemalloc) { \ 256 ierr = PetscFree(b->i);CHKERRQ(ierr); \ 257 ierr = PetscFree(b->j);CHKERRQ(ierr); \ 258 } \ 259 ba = b->a = new_a; bi = b->i = new_i; bj = b->j = new_j; \ 260 b->singlemalloc = PETSC_TRUE; \ 261 \ 262 rp = bj + bi[brow]; ap = ba + bs2*bi[brow]; \ 263 rmax = bimax[brow] = bimax[brow] + CHUNKSIZE; \ 264 PetscLogObjectMemory(B,CHUNKSIZE*(sizeof(int) + bs2*sizeof(MatScalar))); \ 265 b->maxnz += bs2*CHUNKSIZE; \ 266 b->reallocs++; \ 267 b->nz++; \ 268 } \ 269 N = nrow++ - 1; \ 270 /* shift up all the later entries in this row */ \ 271 for (ii=N; ii>=_i; ii--) { \ 272 rp[ii+1] = rp[ii]; \ 273 ierr = PetscMemcpy(ap+bs2*(ii+1),ap+bs2*(ii),bs2*sizeof(MatScalar));CHKERRQ(ierr); \ 274 } \ 275 if (N>=_i) { ierr = PetscMemzero(ap+bs2*_i,bs2*sizeof(MatScalar));CHKERRQ(ierr);} \ 276 rp[_i] = bcol; \ 277 ap[bs2*_i + bs*cidx + ridx] = value; \ 278 b_noinsert:; \ 279 bilen[brow] = nrow; \ 280 } 281 282 #if defined(PETSC_USE_MAT_SINGLE) 283 #undef __FUNCT__ 284 #define __FUNCT__ "MatSetValues_MPIBAIJ" 285 int MatSetValues_MPIBAIJ(Mat mat,int m,int *im,int n,int *in,PetscScalar *v,InsertMode addv) 286 { 287 Mat_MPIBAIJ *b = (Mat_MPIBAIJ*)mat->data; 288 int ierr,i,N = m*n; 289 MatScalar *vsingle; 290 291 PetscFunctionBegin; 292 if (N > b->setvalueslen) { 293 if (b->setvaluescopy) {ierr = PetscFree(b->setvaluescopy);CHKERRQ(ierr);} 294 ierr = PetscMalloc(N*sizeof(MatScalar),&b->setvaluescopy);CHKERRQ(ierr); 295 b->setvalueslen = N; 296 } 297 vsingle = b->setvaluescopy; 298 299 for (i=0; i<N; i++) { 300 vsingle[i] = v[i]; 301 } 302 ierr = MatSetValues_MPIBAIJ_MatScalar(mat,m,im,n,in,vsingle,addv);CHKERRQ(ierr); 303 PetscFunctionReturn(0); 304 } 305 306 #undef __FUNCT__ 307 #define __FUNCT__ "MatSetValuesBlocked_MPIBAIJ" 308 int MatSetValuesBlocked_MPIBAIJ(Mat mat,int m,int *im,int n,int *in,PetscScalar *v,InsertMode addv) 309 { 310 Mat_MPIBAIJ *b = (Mat_MPIBAIJ*)mat->data; 311 int ierr,i,N = m*n*b->bs2; 312 MatScalar *vsingle; 313 314 PetscFunctionBegin; 315 if (N > b->setvalueslen) { 316 if (b->setvaluescopy) {ierr = PetscFree(b->setvaluescopy);CHKERRQ(ierr);} 317 ierr = PetscMalloc(N*sizeof(MatScalar),&b->setvaluescopy);CHKERRQ(ierr); 318 b->setvalueslen = N; 319 } 320 vsingle = b->setvaluescopy; 321 for (i=0; i<N; i++) { 322 vsingle[i] = v[i]; 323 } 324 ierr = MatSetValuesBlocked_MPIBAIJ_MatScalar(mat,m,im,n,in,vsingle,addv);CHKERRQ(ierr); 325 PetscFunctionReturn(0); 326 } 327 328 #undef __FUNCT__ 329 #define __FUNCT__ "MatSetValues_MPIBAIJ_HT" 330 int MatSetValues_MPIBAIJ_HT(Mat mat,int m,int *im,int n,int *in,PetscScalar *v,InsertMode addv) 331 { 332 Mat_MPIBAIJ *b = (Mat_MPIBAIJ*)mat->data; 333 int ierr,i,N = m*n; 334 MatScalar *vsingle; 335 336 PetscFunctionBegin; 337 if (N > b->setvalueslen) { 338 if (b->setvaluescopy) {ierr = PetscFree(b->setvaluescopy);CHKERRQ(ierr);} 339 ierr = PetscMalloc(N*sizeof(MatScalar),&b->setvaluescopy);CHKERRQ(ierr); 340 b->setvalueslen = N; 341 } 342 vsingle = b->setvaluescopy; 343 for (i=0; i<N; i++) { 344 vsingle[i] = v[i]; 345 } 346 ierr = MatSetValues_MPIBAIJ_HT_MatScalar(mat,m,im,n,in,vsingle,addv);CHKERRQ(ierr); 347 PetscFunctionReturn(0); 348 } 349 350 #undef __FUNCT__ 351 #define __FUNCT__ "MatSetValuesBlocked_MPIBAIJ_HT" 352 int MatSetValuesBlocked_MPIBAIJ_HT(Mat mat,int m,int *im,int n,int *in,PetscScalar *v,InsertMode addv) 353 { 354 Mat_MPIBAIJ *b = (Mat_MPIBAIJ*)mat->data; 355 int ierr,i,N = m*n*b->bs2; 356 MatScalar *vsingle; 357 358 PetscFunctionBegin; 359 if (N > b->setvalueslen) { 360 if (b->setvaluescopy) {ierr = PetscFree(b->setvaluescopy);CHKERRQ(ierr);} 361 ierr = PetscMalloc(N*sizeof(MatScalar),&b->setvaluescopy);CHKERRQ(ierr); 362 b->setvalueslen = N; 363 } 364 vsingle = b->setvaluescopy; 365 for (i=0; i<N; i++) { 366 vsingle[i] = v[i]; 367 } 368 ierr = MatSetValuesBlocked_MPIBAIJ_HT_MatScalar(mat,m,im,n,in,vsingle,addv);CHKERRQ(ierr); 369 PetscFunctionReturn(0); 370 } 371 #endif 372 373 #undef __FUNCT__ 374 #define __FUNCT__ "MatSetValues_MPIBAIJ" 375 int MatSetValues_MPIBAIJ_MatScalar(Mat mat,int m,int *im,int n,int *in,MatScalar *v,InsertMode addv) 376 { 377 Mat_MPIBAIJ *baij = (Mat_MPIBAIJ*)mat->data; 378 MatScalar value; 379 PetscTruth roworiented = baij->roworiented; 380 int ierr,i,j,row,col; 381 int rstart_orig=baij->rstart_bs; 382 int rend_orig=baij->rend_bs,cstart_orig=baij->cstart_bs; 383 int cend_orig=baij->cend_bs,bs=baij->bs; 384 385 /* Some Variables required in the macro */ 386 Mat A = baij->A; 387 Mat_SeqBAIJ *a = (Mat_SeqBAIJ*)(A)->data; 388 int *aimax=a->imax,*ai=a->i,*ailen=a->ilen,*aj=a->j; 389 MatScalar *aa=a->a; 390 391 Mat B = baij->B; 392 Mat_SeqBAIJ *b = (Mat_SeqBAIJ*)(B)->data; 393 int *bimax=b->imax,*bi=b->i,*bilen=b->ilen,*bj=b->j; 394 MatScalar *ba=b->a; 395 396 int *rp,ii,nrow,_i,rmax,N,brow,bcol; 397 int low,high,t,ridx,cidx,bs2=a->bs2; 398 MatScalar *ap,*bap; 399 400 PetscFunctionBegin; 401 for (i=0; i<m; i++) { 402 if (im[i] < 0) continue; 403 #if defined(PETSC_USE_BOPT_g) 404 if (im[i] >= mat->M) SETERRQ(PETSC_ERR_ARG_OUTOFRANGE,"Row too large"); 405 #endif 406 if (im[i] >= rstart_orig && im[i] < rend_orig) { 407 row = im[i] - rstart_orig; 408 for (j=0; j<n; j++) { 409 if (in[j] >= cstart_orig && in[j] < cend_orig){ 410 col = in[j] - cstart_orig; 411 if (roworiented) value = v[i*n+j]; else value = v[i+j*m]; 412 MatSetValues_SeqBAIJ_A_Private(row,col,value,addv); 413 /* ierr = MatSetValues_SeqBAIJ(baij->A,1,&row,1,&col,&value,addv);CHKERRQ(ierr); */ 414 } else if (in[j] < 0) continue; 415 #if defined(PETSC_USE_BOPT_g) 416 else if (in[j] >= mat->N) {SETERRQ(PETSC_ERR_ARG_OUTOFRANGE,"Column too large");} 417 #endif 418 else { 419 if (mat->was_assembled) { 420 if (!baij->colmap) { 421 ierr = CreateColmap_MPIBAIJ_Private(mat);CHKERRQ(ierr); 422 } 423 #if defined (PETSC_USE_CTABLE) 424 ierr = PetscTableFind(baij->colmap,in[j]/bs + 1,&col);CHKERRQ(ierr); 425 col = col - 1; 426 #else 427 col = baij->colmap[in[j]/bs] - 1; 428 #endif 429 if (col < 0 && !((Mat_SeqBAIJ*)(baij->A->data))->nonew) { 430 ierr = DisAssemble_MPIBAIJ(mat);CHKERRQ(ierr); 431 col = in[j]; 432 /* Reinitialize the variables required by MatSetValues_SeqBAIJ_B_Private() */ 433 B = baij->B; 434 b = (Mat_SeqBAIJ*)(B)->data; 435 bimax=b->imax;bi=b->i;bilen=b->ilen;bj=b->j; 436 ba=b->a; 437 } else col += in[j]%bs; 438 } else col = in[j]; 439 if (roworiented) value = v[i*n+j]; else value = v[i+j*m]; 440 MatSetValues_SeqBAIJ_B_Private(row,col,value,addv); 441 /* ierr = MatSetValues_SeqBAIJ(baij->B,1,&row,1,&col,&value,addv);CHKERRQ(ierr); */ 442 } 443 } 444 } else { 445 if (!baij->donotstash) { 446 if (roworiented) { 447 ierr = MatStashValuesRow_Private(&mat->stash,im[i],n,in,v+i*n);CHKERRQ(ierr); 448 } else { 449 ierr = MatStashValuesCol_Private(&mat->stash,im[i],n,in,v+i,m);CHKERRQ(ierr); 450 } 451 } 452 } 453 } 454 PetscFunctionReturn(0); 455 } 456 457 #undef __FUNCT__ 458 #define __FUNCT__ "MatSetValuesBlocked_MPIBAIJ_MatScalar" 459 int MatSetValuesBlocked_MPIBAIJ_MatScalar(Mat mat,int m,int *im,int n,int *in,MatScalar *v,InsertMode addv) 460 { 461 Mat_MPIBAIJ *baij = (Mat_MPIBAIJ*)mat->data; 462 MatScalar *value,*barray=baij->barray; 463 PetscTruth roworiented = baij->roworiented; 464 int ierr,i,j,ii,jj,row,col,rstart=baij->rstart; 465 int rend=baij->rend,cstart=baij->cstart,stepval; 466 int cend=baij->cend,bs=baij->bs,bs2=baij->bs2; 467 468 PetscFunctionBegin; 469 if(!barray) { 470 ierr = PetscMalloc(bs2*sizeof(MatScalar),&barray);CHKERRQ(ierr); 471 baij->barray = barray; 472 } 473 474 if (roworiented) { 475 stepval = (n-1)*bs; 476 } else { 477 stepval = (m-1)*bs; 478 } 479 for (i=0; i<m; i++) { 480 if (im[i] < 0) continue; 481 #if defined(PETSC_USE_BOPT_g) 482 if (im[i] >= baij->Mbs) SETERRQ2(PETSC_ERR_ARG_OUTOFRANGE,"Row too large, row %d max %d",im[i],baij->Mbs); 483 #endif 484 if (im[i] >= rstart && im[i] < rend) { 485 row = im[i] - rstart; 486 for (j=0; j<n; j++) { 487 /* If NumCol = 1 then a copy is not required */ 488 if ((roworiented) && (n == 1)) { 489 barray = v + i*bs2; 490 } else if((!roworiented) && (m == 1)) { 491 barray = v + j*bs2; 492 } else { /* Here a copy is required */ 493 if (roworiented) { 494 value = v + i*(stepval+bs)*bs + j*bs; 495 } else { 496 value = v + j*(stepval+bs)*bs + i*bs; 497 } 498 for (ii=0; ii<bs; ii++,value+=stepval) { 499 for (jj=0; jj<bs; jj++) { 500 *barray++ = *value++; 501 } 502 } 503 barray -=bs2; 504 } 505 506 if (in[j] >= cstart && in[j] < cend){ 507 col = in[j] - cstart; 508 ierr = MatSetValuesBlocked_SeqBAIJ_MatScalar(baij->A,1,&row,1,&col,barray,addv);CHKERRQ(ierr); 509 } 510 else if (in[j] < 0) continue; 511 #if defined(PETSC_USE_BOPT_g) 512 else if (in[j] >= baij->Nbs) {SETERRQ2(PETSC_ERR_ARG_OUTOFRANGE,"Column too large, col %d max %d",in[j],baij->Nbs);} 513 #endif 514 else { 515 if (mat->was_assembled) { 516 if (!baij->colmap) { 517 ierr = CreateColmap_MPIBAIJ_Private(mat);CHKERRQ(ierr); 518 } 519 520 #if defined(PETSC_USE_BOPT_g) 521 #if defined (PETSC_USE_CTABLE) 522 { int data; 523 ierr = PetscTableFind(baij->colmap,in[j]+1,&data);CHKERRQ(ierr); 524 if ((data - 1) % bs) SETERRQ(PETSC_ERR_PLIB,"Incorrect colmap"); 525 } 526 #else 527 if ((baij->colmap[in[j]] - 1) % bs) SETERRQ(PETSC_ERR_PLIB,"Incorrect colmap"); 528 #endif 529 #endif 530 #if defined (PETSC_USE_CTABLE) 531 ierr = PetscTableFind(baij->colmap,in[j]+1,&col);CHKERRQ(ierr); 532 col = (col - 1)/bs; 533 #else 534 col = (baij->colmap[in[j]] - 1)/bs; 535 #endif 536 if (col < 0 && !((Mat_SeqBAIJ*)(baij->A->data))->nonew) { 537 ierr = DisAssemble_MPIBAIJ(mat);CHKERRQ(ierr); 538 col = in[j]; 539 } 540 } 541 else col = in[j]; 542 ierr = MatSetValuesBlocked_SeqBAIJ_MatScalar(baij->B,1,&row,1,&col,barray,addv);CHKERRQ(ierr); 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 PetscFunctionReturn(0); 556 } 557 558 #define HASH_KEY 0.6180339887 559 #define HASH(size,key,tmp) (tmp = (key)*HASH_KEY,(int)((size)*(tmp-(int)tmp))) 560 /* #define HASH(size,key) ((int)((size)*fmod(((key)*HASH_KEY),1))) */ 561 /* #define HASH(size,key,tmp) ((int)((size)*fmod(((key)*HASH_KEY),1))) */ 562 #undef __FUNCT__ 563 #define __FUNCT__ "MatSetValues_MPIBAIJ_HT_MatScalar" 564 int MatSetValues_MPIBAIJ_HT_MatScalar(Mat mat,int m,int *im,int n,int *in,MatScalar *v,InsertMode addv) 565 { 566 Mat_MPIBAIJ *baij = (Mat_MPIBAIJ*)mat->data; 567 PetscTruth roworiented = baij->roworiented; 568 int ierr,i,j,row,col; 569 int rstart_orig=baij->rstart_bs; 570 int rend_orig=baij->rend_bs,Nbs=baij->Nbs; 571 int h1,key,size=baij->ht_size,bs=baij->bs,*HT=baij->ht,idx; 572 PetscReal tmp; 573 MatScalar **HD = baij->hd,value; 574 #if defined(PETSC_USE_BOPT_g) 575 int total_ct=baij->ht_total_ct,insert_ct=baij->ht_insert_ct; 576 #endif 577 578 PetscFunctionBegin; 579 580 for (i=0; i<m; i++) { 581 #if defined(PETSC_USE_BOPT_g) 582 if (im[i] < 0) SETERRQ(PETSC_ERR_ARG_OUTOFRANGE,"Negative row"); 583 if (im[i] >= mat->M) SETERRQ(PETSC_ERR_ARG_OUTOFRANGE,"Row too large"); 584 #endif 585 row = im[i]; 586 if (row >= rstart_orig && row < rend_orig) { 587 for (j=0; j<n; j++) { 588 col = in[j]; 589 if (roworiented) value = v[i*n+j]; else value = v[i+j*m]; 590 /* Look up into the Hash Table */ 591 key = (row/bs)*Nbs+(col/bs)+1; 592 h1 = HASH(size,key,tmp); 593 594 595 idx = h1; 596 #if defined(PETSC_USE_BOPT_g) 597 insert_ct++; 598 total_ct++; 599 if (HT[idx] != key) { 600 for (idx=h1; (idx<size) && (HT[idx]!=key); idx++,total_ct++); 601 if (idx == size) { 602 for (idx=0; (idx<h1) && (HT[idx]!=key); idx++,total_ct++); 603 if (idx == h1) { 604 SETERRQ(PETSC_ERR_ARG_OUTOFRANGE,"(row,col) has no entry in the hash table"); 605 } 606 } 607 } 608 #else 609 if (HT[idx] != key) { 610 for (idx=h1; (idx<size) && (HT[idx]!=key); idx++); 611 if (idx == size) { 612 for (idx=0; (idx<h1) && (HT[idx]!=key); idx++); 613 if (idx == h1) { 614 SETERRQ(PETSC_ERR_ARG_OUTOFRANGE,"(row,col) has no entry in the hash table"); 615 } 616 } 617 } 618 #endif 619 /* A HASH table entry is found, so insert the values at the correct address */ 620 if (addv == ADD_VALUES) *(HD[idx]+ (col % bs)*bs + (row % bs)) += value; 621 else *(HD[idx]+ (col % bs)*bs + (row % bs)) = value; 622 } 623 } else { 624 if (!baij->donotstash) { 625 if (roworiented) { 626 ierr = MatStashValuesRow_Private(&mat->stash,im[i],n,in,v+i*n);CHKERRQ(ierr); 627 } else { 628 ierr = MatStashValuesCol_Private(&mat->stash,im[i],n,in,v+i,m);CHKERRQ(ierr); 629 } 630 } 631 } 632 } 633 #if defined(PETSC_USE_BOPT_g) 634 baij->ht_total_ct = total_ct; 635 baij->ht_insert_ct = insert_ct; 636 #endif 637 PetscFunctionReturn(0); 638 } 639 640 #undef __FUNCT__ 641 #define __FUNCT__ "MatSetValuesBlocked_MPIBAIJ_HT_MatScalar" 642 int MatSetValuesBlocked_MPIBAIJ_HT_MatScalar(Mat mat,int m,int *im,int n,int *in,MatScalar *v,InsertMode addv) 643 { 644 Mat_MPIBAIJ *baij = (Mat_MPIBAIJ*)mat->data; 645 PetscTruth roworiented = baij->roworiented; 646 int ierr,i,j,ii,jj,row,col; 647 int rstart=baij->rstart ; 648 int rend=baij->rend,stepval,bs=baij->bs,bs2=baij->bs2; 649 int h1,key,size=baij->ht_size,idx,*HT=baij->ht,Nbs=baij->Nbs; 650 PetscReal tmp; 651 MatScalar **HD = baij->hd,*baij_a; 652 MatScalar *v_t,*value; 653 #if defined(PETSC_USE_BOPT_g) 654 int total_ct=baij->ht_total_ct,insert_ct=baij->ht_insert_ct; 655 #endif 656 657 PetscFunctionBegin; 658 659 if (roworiented) { 660 stepval = (n-1)*bs; 661 } else { 662 stepval = (m-1)*bs; 663 } 664 for (i=0; i<m; i++) { 665 #if defined(PETSC_USE_BOPT_g) 666 if (im[i] < 0) SETERRQ(PETSC_ERR_ARG_OUTOFRANGE,"Negative row"); 667 if (im[i] >= baij->Mbs) SETERRQ(PETSC_ERR_ARG_OUTOFRANGE,"Row too large"); 668 #endif 669 row = im[i]; 670 v_t = v + i*bs2; 671 if (row >= rstart && row < rend) { 672 for (j=0; j<n; j++) { 673 col = in[j]; 674 675 /* Look up into the Hash Table */ 676 key = row*Nbs+col+1; 677 h1 = HASH(size,key,tmp); 678 679 idx = h1; 680 #if defined(PETSC_USE_BOPT_g) 681 total_ct++; 682 insert_ct++; 683 if (HT[idx] != key) { 684 for (idx=h1; (idx<size) && (HT[idx]!=key); idx++,total_ct++); 685 if (idx == size) { 686 for (idx=0; (idx<h1) && (HT[idx]!=key); idx++,total_ct++); 687 if (idx == h1) { 688 SETERRQ(PETSC_ERR_ARG_OUTOFRANGE,"(row,col) has no entry in the hash table"); 689 } 690 } 691 } 692 #else 693 if (HT[idx] != key) { 694 for (idx=h1; (idx<size) && (HT[idx]!=key); idx++); 695 if (idx == size) { 696 for (idx=0; (idx<h1) && (HT[idx]!=key); idx++); 697 if (idx == h1) { 698 SETERRQ(PETSC_ERR_ARG_OUTOFRANGE,"(row,col) has no entry in the hash table"); 699 } 700 } 701 } 702 #endif 703 baij_a = HD[idx]; 704 if (roworiented) { 705 /*value = v + i*(stepval+bs)*bs + j*bs;*/ 706 /* value = v + (i*(stepval+bs)+j)*bs; */ 707 value = v_t; 708 v_t += bs; 709 if (addv == ADD_VALUES) { 710 for (ii=0; ii<bs; ii++,value+=stepval) { 711 for (jj=ii; jj<bs2; jj+=bs) { 712 baij_a[jj] += *value++; 713 } 714 } 715 } else { 716 for (ii=0; ii<bs; ii++,value+=stepval) { 717 for (jj=ii; jj<bs2; jj+=bs) { 718 baij_a[jj] = *value++; 719 } 720 } 721 } 722 } else { 723 value = v + j*(stepval+bs)*bs + i*bs; 724 if (addv == ADD_VALUES) { 725 for (ii=0; ii<bs; ii++,value+=stepval,baij_a+=bs) { 726 for (jj=0; jj<bs; jj++) { 727 baij_a[jj] += *value++; 728 } 729 } 730 } else { 731 for (ii=0; ii<bs; ii++,value+=stepval,baij_a+=bs) { 732 for (jj=0; jj<bs; jj++) { 733 baij_a[jj] = *value++; 734 } 735 } 736 } 737 } 738 } 739 } else { 740 if (!baij->donotstash) { 741 if (roworiented) { 742 ierr = MatStashValuesRowBlocked_Private(&mat->bstash,im[i],n,in,v,m,n,i);CHKERRQ(ierr); 743 } else { 744 ierr = MatStashValuesColBlocked_Private(&mat->bstash,im[i],n,in,v,m,n,i);CHKERRQ(ierr); 745 } 746 } 747 } 748 } 749 #if defined(PETSC_USE_BOPT_g) 750 baij->ht_total_ct = total_ct; 751 baij->ht_insert_ct = insert_ct; 752 #endif 753 PetscFunctionReturn(0); 754 } 755 756 #undef __FUNCT__ 757 #define __FUNCT__ "MatGetValues_MPIBAIJ" 758 int MatGetValues_MPIBAIJ(Mat mat,int m,int *idxm,int n,int *idxn,PetscScalar *v) 759 { 760 Mat_MPIBAIJ *baij = (Mat_MPIBAIJ*)mat->data; 761 int bs=baij->bs,ierr,i,j,bsrstart = baij->rstart*bs,bsrend = baij->rend*bs; 762 int bscstart = baij->cstart*bs,bscend = baij->cend*bs,row,col,data; 763 764 PetscFunctionBegin; 765 for (i=0; i<m; i++) { 766 if (idxm[i] < 0) SETERRQ(PETSC_ERR_ARG_OUTOFRANGE,"Negative row"); 767 if (idxm[i] >= mat->M) SETERRQ(PETSC_ERR_ARG_OUTOFRANGE,"Row too large"); 768 if (idxm[i] >= bsrstart && idxm[i] < bsrend) { 769 row = idxm[i] - bsrstart; 770 for (j=0; j<n; j++) { 771 if (idxn[j] < 0) SETERRQ(PETSC_ERR_ARG_OUTOFRANGE,"Negative column"); 772 if (idxn[j] >= mat->N) SETERRQ(PETSC_ERR_ARG_OUTOFRANGE,"Column too large"); 773 if (idxn[j] >= bscstart && idxn[j] < bscend){ 774 col = idxn[j] - bscstart; 775 ierr = MatGetValues_SeqBAIJ(baij->A,1,&row,1,&col,v+i*n+j);CHKERRQ(ierr); 776 } else { 777 if (!baij->colmap) { 778 ierr = CreateColmap_MPIBAIJ_Private(mat);CHKERRQ(ierr); 779 } 780 #if defined (PETSC_USE_CTABLE) 781 ierr = PetscTableFind(baij->colmap,idxn[j]/bs+1,&data);CHKERRQ(ierr); 782 data --; 783 #else 784 data = baij->colmap[idxn[j]/bs]-1; 785 #endif 786 if((data < 0) || (baij->garray[data/bs] != idxn[j]/bs)) *(v+i*n+j) = 0.0; 787 else { 788 col = data + idxn[j]%bs; 789 ierr = MatGetValues_SeqBAIJ(baij->B,1,&row,1,&col,v+i*n+j);CHKERRQ(ierr); 790 } 791 } 792 } 793 } else { 794 SETERRQ(PETSC_ERR_SUP,"Only local values currently supported"); 795 } 796 } 797 PetscFunctionReturn(0); 798 } 799 800 #undef __FUNCT__ 801 #define __FUNCT__ "MatNorm_MPIBAIJ" 802 int MatNorm_MPIBAIJ(Mat mat,NormType type,PetscReal *nrm) 803 { 804 Mat_MPIBAIJ *baij = (Mat_MPIBAIJ*)mat->data; 805 Mat_SeqBAIJ *amat = (Mat_SeqBAIJ*)baij->A->data,*bmat = (Mat_SeqBAIJ*)baij->B->data; 806 int ierr,i,bs2=baij->bs2; 807 PetscReal sum = 0.0; 808 MatScalar *v; 809 810 PetscFunctionBegin; 811 if (baij->size == 1) { 812 ierr = MatNorm(baij->A,type,nrm);CHKERRQ(ierr); 813 } else { 814 if (type == NORM_FROBENIUS) { 815 v = amat->a; 816 for (i=0; i<amat->nz*bs2; i++) { 817 #if defined(PETSC_USE_COMPLEX) 818 sum += PetscRealPart(PetscConj(*v)*(*v)); v++; 819 #else 820 sum += (*v)*(*v); v++; 821 #endif 822 } 823 v = bmat->a; 824 for (i=0; i<bmat->nz*bs2; i++) { 825 #if defined(PETSC_USE_COMPLEX) 826 sum += PetscRealPart(PetscConj(*v)*(*v)); v++; 827 #else 828 sum += (*v)*(*v); v++; 829 #endif 830 } 831 ierr = MPI_Allreduce(&sum,nrm,1,MPIU_REAL,MPI_SUM,mat->comm);CHKERRQ(ierr); 832 *nrm = sqrt(*nrm); 833 } else { 834 SETERRQ(PETSC_ERR_SUP,"No support for this norm yet"); 835 } 836 } 837 PetscFunctionReturn(0); 838 } 839 840 841 /* 842 Creates the hash table, and sets the table 843 This table is created only once. 844 If new entried need to be added to the matrix 845 then the hash table has to be destroyed and 846 recreated. 847 */ 848 #undef __FUNCT__ 849 #define __FUNCT__ "MatCreateHashTable_MPIBAIJ_Private" 850 int MatCreateHashTable_MPIBAIJ_Private(Mat mat,PetscReal factor) 851 { 852 Mat_MPIBAIJ *baij = (Mat_MPIBAIJ*)mat->data; 853 Mat A = baij->A,B=baij->B; 854 Mat_SeqBAIJ *a=(Mat_SeqBAIJ *)A->data,*b=(Mat_SeqBAIJ *)B->data; 855 int i,j,k,nz=a->nz+b->nz,h1,*ai=a->i,*aj=a->j,*bi=b->i,*bj=b->j; 856 int size,bs2=baij->bs2,rstart=baij->rstart,ierr; 857 int cstart=baij->cstart,*garray=baij->garray,row,col,Nbs=baij->Nbs; 858 int *HT,key; 859 MatScalar **HD; 860 PetscReal tmp; 861 #if defined(PETSC_USE_BOPT_g) 862 int ct=0,max=0; 863 #endif 864 865 PetscFunctionBegin; 866 baij->ht_size=(int)(factor*nz); 867 size = baij->ht_size; 868 869 if (baij->ht) { 870 PetscFunctionReturn(0); 871 } 872 873 /* Allocate Memory for Hash Table */ 874 ierr = PetscMalloc((size)*(sizeof(int)+sizeof(MatScalar*))+1,&baij->hd);CHKERRQ(ierr); 875 baij->ht = (int*)(baij->hd + size); 876 HD = baij->hd; 877 HT = baij->ht; 878 879 880 ierr = PetscMemzero(HD,size*(sizeof(int)+sizeof(PetscScalar*)));CHKERRQ(ierr); 881 882 883 /* Loop Over A */ 884 for (i=0; i<a->mbs; i++) { 885 for (j=ai[i]; j<ai[i+1]; j++) { 886 row = i+rstart; 887 col = aj[j]+cstart; 888 889 key = row*Nbs + col + 1; 890 h1 = HASH(size,key,tmp); 891 for (k=0; k<size; k++){ 892 if (HT[(h1+k)%size] == 0.0) { 893 HT[(h1+k)%size] = key; 894 HD[(h1+k)%size] = a->a + j*bs2; 895 break; 896 #if defined(PETSC_USE_BOPT_g) 897 } else { 898 ct++; 899 #endif 900 } 901 } 902 #if defined(PETSC_USE_BOPT_g) 903 if (k> max) max = k; 904 #endif 905 } 906 } 907 /* Loop Over B */ 908 for (i=0; i<b->mbs; i++) { 909 for (j=bi[i]; j<bi[i+1]; j++) { 910 row = i+rstart; 911 col = garray[bj[j]]; 912 key = row*Nbs + col + 1; 913 h1 = HASH(size,key,tmp); 914 for (k=0; k<size; k++){ 915 if (HT[(h1+k)%size] == 0.0) { 916 HT[(h1+k)%size] = key; 917 HD[(h1+k)%size] = b->a + j*bs2; 918 break; 919 #if defined(PETSC_USE_BOPT_g) 920 } else { 921 ct++; 922 #endif 923 } 924 } 925 #if defined(PETSC_USE_BOPT_g) 926 if (k> max) max = k; 927 #endif 928 } 929 } 930 931 /* Print Summary */ 932 #if defined(PETSC_USE_BOPT_g) 933 for (i=0,j=0; i<size; i++) { 934 if (HT[i]) {j++;} 935 } 936 PetscLogInfo(0,"MatCreateHashTable_MPIBAIJ_Private: Average Search = %5.2f,max search = %d\n",(j== 0)? 0.0:((PetscReal)(ct+j))/j,max); 937 #endif 938 PetscFunctionReturn(0); 939 } 940 941 #undef __FUNCT__ 942 #define __FUNCT__ "MatAssemblyBegin_MPIBAIJ" 943 int MatAssemblyBegin_MPIBAIJ(Mat mat,MatAssemblyType mode) 944 { 945 Mat_MPIBAIJ *baij = (Mat_MPIBAIJ*)mat->data; 946 int ierr,nstash,reallocs; 947 InsertMode addv; 948 949 PetscFunctionBegin; 950 if (baij->donotstash) { 951 PetscFunctionReturn(0); 952 } 953 954 /* make sure all processors are either in INSERTMODE or ADDMODE */ 955 ierr = MPI_Allreduce(&mat->insertmode,&addv,1,MPI_INT,MPI_BOR,mat->comm);CHKERRQ(ierr); 956 if (addv == (ADD_VALUES|INSERT_VALUES)) { 957 SETERRQ(PETSC_ERR_ARG_WRONGSTATE,"Some processors inserted others added"); 958 } 959 mat->insertmode = addv; /* in case this processor had no cache */ 960 961 ierr = MatStashScatterBegin_Private(&mat->stash,baij->rowners_bs);CHKERRQ(ierr); 962 ierr = MatStashScatterBegin_Private(&mat->bstash,baij->rowners);CHKERRQ(ierr); 963 ierr = MatStashGetInfo_Private(&mat->stash,&nstash,&reallocs);CHKERRQ(ierr); 964 PetscLogInfo(0,"MatAssemblyBegin_MPIBAIJ:Stash has %d entries,uses %d mallocs.\n",nstash,reallocs); 965 ierr = MatStashGetInfo_Private(&mat->bstash,&nstash,&reallocs);CHKERRQ(ierr); 966 PetscLogInfo(0,"MatAssemblyBegin_MPIBAIJ:Block-Stash has %d entries, uses %d mallocs.\n",nstash,reallocs); 967 PetscFunctionReturn(0); 968 } 969 970 EXTERN int MatUseDSCPACK_MPIBAIJ(Mat); 971 #undef __FUNCT__ 972 #define __FUNCT__ "MatAssemblyEnd_MPIBAIJ" 973 int MatAssemblyEnd_MPIBAIJ(Mat mat,MatAssemblyType mode) 974 { 975 Mat_MPIBAIJ *baij=(Mat_MPIBAIJ*)mat->data; 976 Mat_SeqBAIJ *a=(Mat_SeqBAIJ*)baij->A->data,*b=(Mat_SeqBAIJ*)baij->B->data; 977 int i,j,rstart,ncols,n,ierr,flg,bs2=baij->bs2; 978 int *row,*col,other_disassembled; 979 PetscTruth r1,r2,r3; 980 MatScalar *val; 981 InsertMode addv = mat->insertmode; 982 #if defined(PETSC_HAVE_DSCPACK) 983 PetscTruth flag; 984 #endif 985 986 PetscFunctionBegin; 987 if (!baij->donotstash) { 988 while (1) { 989 ierr = MatStashScatterGetMesg_Private(&mat->stash,&n,&row,&col,&val,&flg);CHKERRQ(ierr); 990 if (!flg) break; 991 992 for (i=0; i<n;) { 993 /* Now identify the consecutive vals belonging to the same row */ 994 for (j=i,rstart=row[j]; j<n; j++) { if (row[j] != rstart) break; } 995 if (j < n) ncols = j-i; 996 else ncols = n-i; 997 /* Now assemble all these values with a single function call */ 998 ierr = MatSetValues_MPIBAIJ_MatScalar(mat,1,row+i,ncols,col+i,val+i,addv);CHKERRQ(ierr); 999 i = j; 1000 } 1001 } 1002 ierr = MatStashScatterEnd_Private(&mat->stash);CHKERRQ(ierr); 1003 /* Now process the block-stash. Since the values are stashed column-oriented, 1004 set the roworiented flag to column oriented, and after MatSetValues() 1005 restore the original flags */ 1006 r1 = baij->roworiented; 1007 r2 = a->roworiented; 1008 r3 = b->roworiented; 1009 baij->roworiented = PETSC_FALSE; 1010 a->roworiented = PETSC_FALSE; 1011 b->roworiented = PETSC_FALSE; 1012 while (1) { 1013 ierr = MatStashScatterGetMesg_Private(&mat->bstash,&n,&row,&col,&val,&flg);CHKERRQ(ierr); 1014 if (!flg) break; 1015 1016 for (i=0; i<n;) { 1017 /* Now identify the consecutive vals belonging to the same row */ 1018 for (j=i,rstart=row[j]; j<n; j++) { if (row[j] != rstart) break; } 1019 if (j < n) ncols = j-i; 1020 else ncols = n-i; 1021 ierr = MatSetValuesBlocked_MPIBAIJ_MatScalar(mat,1,row+i,ncols,col+i,val+i*bs2,addv);CHKERRQ(ierr); 1022 i = j; 1023 } 1024 } 1025 ierr = MatStashScatterEnd_Private(&mat->bstash);CHKERRQ(ierr); 1026 baij->roworiented = r1; 1027 a->roworiented = r2; 1028 b->roworiented = r3; 1029 } 1030 1031 ierr = MatAssemblyBegin(baij->A,mode);CHKERRQ(ierr); 1032 ierr = MatAssemblyEnd(baij->A,mode);CHKERRQ(ierr); 1033 1034 /* determine if any processor has disassembled, if so we must 1035 also disassemble ourselfs, in order that we may reassemble. */ 1036 /* 1037 if nonzero structure of submatrix B cannot change then we know that 1038 no processor disassembled thus we can skip this stuff 1039 */ 1040 if (!((Mat_SeqBAIJ*)baij->B->data)->nonew) { 1041 ierr = MPI_Allreduce(&mat->was_assembled,&other_disassembled,1,MPI_INT,MPI_PROD,mat->comm);CHKERRQ(ierr); 1042 if (mat->was_assembled && !other_disassembled) { 1043 ierr = DisAssemble_MPIBAIJ(mat);CHKERRQ(ierr); 1044 } 1045 } 1046 1047 if (!mat->was_assembled && mode == MAT_FINAL_ASSEMBLY) { 1048 ierr = MatSetUpMultiply_MPIBAIJ(mat);CHKERRQ(ierr); 1049 } 1050 ierr = MatAssemblyBegin(baij->B,mode);CHKERRQ(ierr); 1051 ierr = MatAssemblyEnd(baij->B,mode);CHKERRQ(ierr); 1052 1053 #if defined(PETSC_USE_BOPT_g) 1054 if (baij->ht && mode== MAT_FINAL_ASSEMBLY) { 1055 PetscLogInfo(0,"MatAssemblyEnd_MPIBAIJ:Average Hash Table Search in MatSetValues = %5.2f\n",((PetscReal)baij->ht_total_ct)/baij->ht_insert_ct); 1056 baij->ht_total_ct = 0; 1057 baij->ht_insert_ct = 0; 1058 } 1059 #endif 1060 if (baij->ht_flag && !baij->ht && mode == MAT_FINAL_ASSEMBLY) { 1061 ierr = MatCreateHashTable_MPIBAIJ_Private(mat,baij->ht_fact);CHKERRQ(ierr); 1062 mat->ops->setvalues = MatSetValues_MPIBAIJ_HT; 1063 mat->ops->setvaluesblocked = MatSetValuesBlocked_MPIBAIJ_HT; 1064 } 1065 1066 if (baij->rowvalues) { 1067 ierr = PetscFree(baij->rowvalues);CHKERRQ(ierr); 1068 baij->rowvalues = 0; 1069 } 1070 #if defined(PETSC_HAVE_DSCPACK) 1071 ierr = PetscOptionsHasName(mat->prefix,"-mat_baij_dscpack",&flag);CHKERRQ(ierr); 1072 if (flag) { ierr = MatUseDSCPACK_MPIBAIJ(mat);CHKERRQ(ierr); } 1073 #endif 1074 PetscFunctionReturn(0); 1075 } 1076 1077 extern int MatMPIBAIJFactorInfo_DSCPACK(Mat,PetscViewer); 1078 1079 #undef __FUNCT__ 1080 #define __FUNCT__ "MatView_MPIBAIJ_ASCIIorDraworSocket" 1081 static int MatView_MPIBAIJ_ASCIIorDraworSocket(Mat mat,PetscViewer viewer) 1082 { 1083 Mat_MPIBAIJ *baij = (Mat_MPIBAIJ*)mat->data; 1084 int ierr,bs = baij->bs,size = baij->size,rank = baij->rank; 1085 PetscTruth isascii,isdraw; 1086 PetscViewer sviewer; 1087 PetscViewerFormat format; 1088 1089 PetscFunctionBegin; 1090 /* printf(" MatView_MPIBAIJ_ASCIIorDraworSocket is called ...\n"); */ 1091 ierr = PetscTypeCompare((PetscObject)viewer,PETSC_VIEWER_ASCII,&isascii);CHKERRQ(ierr); 1092 ierr = PetscTypeCompare((PetscObject)viewer,PETSC_VIEWER_DRAW,&isdraw);CHKERRQ(ierr); 1093 if (isascii) { 1094 ierr = PetscViewerGetFormat(viewer,&format);CHKERRQ(ierr); 1095 if (format == PETSC_VIEWER_ASCII_INFO_DETAIL) { 1096 MatInfo info; 1097 ierr = MPI_Comm_rank(mat->comm,&rank);CHKERRQ(ierr); 1098 ierr = MatGetInfo(mat,MAT_LOCAL,&info);CHKERRQ(ierr); 1099 ierr = PetscViewerASCIISynchronizedPrintf(viewer,"[%d] Local rows %d nz %d nz alloced %d bs %d mem %d\n", 1100 rank,mat->m,(int)info.nz_used*bs,(int)info.nz_allocated*bs, 1101 baij->bs,(int)info.memory);CHKERRQ(ierr); 1102 ierr = MatGetInfo(baij->A,MAT_LOCAL,&info);CHKERRQ(ierr); 1103 ierr = PetscViewerASCIISynchronizedPrintf(viewer,"[%d] on-diagonal part: nz %d \n",rank,(int)info.nz_used*bs);CHKERRQ(ierr); 1104 ierr = MatGetInfo(baij->B,MAT_LOCAL,&info);CHKERRQ(ierr); 1105 ierr = PetscViewerASCIISynchronizedPrintf(viewer,"[%d] off-diagonal part: nz %d \n",rank,(int)info.nz_used*bs);CHKERRQ(ierr); 1106 ierr = PetscViewerFlush(viewer);CHKERRQ(ierr); 1107 ierr = VecScatterView(baij->Mvctx,viewer);CHKERRQ(ierr); 1108 PetscFunctionReturn(0); 1109 } else if (format == PETSC_VIEWER_ASCII_INFO) { 1110 ierr = PetscViewerASCIIPrintf(viewer," block size is %d\n",bs);CHKERRQ(ierr); 1111 PetscFunctionReturn(0); 1112 } else if (format == PETSC_VIEWER_ASCII_FACTOR_INFO) { 1113 #if defined(PETSC_HAVE_DSCPACK) && !defined(PETSC_USE_SINGLE) && !defined(PETSC_USE_COMPLEX) 1114 ierr = MatMPIBAIJFactorInfo_DSCPACK(mat,viewer);CHKERRQ(ierr); 1115 #endif 1116 PetscFunctionReturn(0); 1117 } 1118 } 1119 1120 if (isdraw) { 1121 PetscDraw draw; 1122 PetscTruth isnull; 1123 ierr = PetscViewerDrawGetDraw(viewer,0,&draw);CHKERRQ(ierr); 1124 ierr = PetscDrawIsNull(draw,&isnull);CHKERRQ(ierr); if (isnull) PetscFunctionReturn(0); 1125 } 1126 1127 if (size == 1) { 1128 ierr = PetscObjectSetName((PetscObject)baij->A,mat->name);CHKERRQ(ierr); 1129 ierr = MatView(baij->A,viewer);CHKERRQ(ierr); 1130 } else { 1131 /* assemble the entire matrix onto first processor. */ 1132 Mat A; 1133 Mat_SeqBAIJ *Aloc; 1134 int M = mat->M,N = mat->N,*ai,*aj,col,i,j,k,*rvals,mbs = baij->mbs; 1135 MatScalar *a; 1136 1137 if (!rank) { 1138 ierr = MatCreateMPIBAIJ(mat->comm,baij->bs,M,N,M,N,0,PETSC_NULL,0,PETSC_NULL,&A);CHKERRQ(ierr); 1139 } else { 1140 ierr = MatCreateMPIBAIJ(mat->comm,baij->bs,0,0,M,N,0,PETSC_NULL,0,PETSC_NULL,&A);CHKERRQ(ierr); 1141 } 1142 PetscLogObjectParent(mat,A); 1143 1144 /* copy over the A part */ 1145 Aloc = (Mat_SeqBAIJ*)baij->A->data; 1146 ai = Aloc->i; aj = Aloc->j; a = Aloc->a; 1147 ierr = PetscMalloc(bs*sizeof(int),&rvals);CHKERRQ(ierr); 1148 1149 for (i=0; i<mbs; i++) { 1150 rvals[0] = bs*(baij->rstart + i); 1151 for (j=1; j<bs; j++) { rvals[j] = rvals[j-1] + 1; } 1152 for (j=ai[i]; j<ai[i+1]; j++) { 1153 col = (baij->cstart+aj[j])*bs; 1154 for (k=0; k<bs; k++) { 1155 ierr = MatSetValues_MPIBAIJ_MatScalar(A,bs,rvals,1,&col,a,INSERT_VALUES);CHKERRQ(ierr); 1156 col++; a += bs; 1157 } 1158 } 1159 } 1160 /* copy over the B part */ 1161 Aloc = (Mat_SeqBAIJ*)baij->B->data; 1162 ai = Aloc->i; aj = Aloc->j; a = Aloc->a; 1163 for (i=0; i<mbs; i++) { 1164 rvals[0] = bs*(baij->rstart + i); 1165 for (j=1; j<bs; j++) { rvals[j] = rvals[j-1] + 1; } 1166 for (j=ai[i]; j<ai[i+1]; j++) { 1167 col = baij->garray[aj[j]]*bs; 1168 for (k=0; k<bs; k++) { 1169 ierr = MatSetValues_MPIBAIJ_MatScalar(A,bs,rvals,1,&col,a,INSERT_VALUES);CHKERRQ(ierr); 1170 col++; a += bs; 1171 } 1172 } 1173 } 1174 ierr = PetscFree(rvals);CHKERRQ(ierr); 1175 ierr = MatAssemblyBegin(A,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 1176 ierr = MatAssemblyEnd(A,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 1177 /* 1178 Everyone has to call to draw the matrix since the graphics waits are 1179 synchronized across all processors that share the PetscDraw object 1180 */ 1181 ierr = PetscViewerGetSingleton(viewer,&sviewer);CHKERRQ(ierr); 1182 if (!rank) { 1183 ierr = PetscObjectSetName((PetscObject)((Mat_MPIBAIJ*)(A->data))->A,mat->name);CHKERRQ(ierr); 1184 ierr = MatView(((Mat_MPIBAIJ*)(A->data))->A,sviewer);CHKERRQ(ierr); 1185 } 1186 ierr = PetscViewerRestoreSingleton(viewer,&sviewer);CHKERRQ(ierr); 1187 ierr = MatDestroy(A);CHKERRQ(ierr); 1188 } 1189 PetscFunctionReturn(0); 1190 } 1191 1192 #undef __FUNCT__ 1193 #define __FUNCT__ "MatView_MPIBAIJ" 1194 int MatView_MPIBAIJ(Mat mat,PetscViewer viewer) 1195 { 1196 int ierr; 1197 PetscTruth isascii,isdraw,issocket,isbinary; 1198 1199 PetscFunctionBegin; 1200 ierr = PetscTypeCompare((PetscObject)viewer,PETSC_VIEWER_ASCII,&isascii);CHKERRQ(ierr); 1201 ierr = PetscTypeCompare((PetscObject)viewer,PETSC_VIEWER_DRAW,&isdraw);CHKERRQ(ierr); 1202 ierr = PetscTypeCompare((PetscObject)viewer,PETSC_VIEWER_SOCKET,&issocket);CHKERRQ(ierr); 1203 ierr = PetscTypeCompare((PetscObject)viewer,PETSC_VIEWER_BINARY,&isbinary);CHKERRQ(ierr); 1204 if (isascii || isdraw || issocket || isbinary) { 1205 ierr = MatView_MPIBAIJ_ASCIIorDraworSocket(mat,viewer);CHKERRQ(ierr); 1206 } else { 1207 SETERRQ1(1,"Viewer type %s not supported by MPIBAIJ matrices",((PetscObject)viewer)->type_name); 1208 } 1209 PetscFunctionReturn(0); 1210 } 1211 1212 #undef __FUNCT__ 1213 #define __FUNCT__ "MatDestroy_MPIBAIJ" 1214 int MatDestroy_MPIBAIJ(Mat mat) 1215 { 1216 Mat_MPIBAIJ *baij = (Mat_MPIBAIJ*)mat->data; 1217 int ierr; 1218 1219 PetscFunctionBegin; 1220 #if defined(PETSC_USE_LOG) 1221 PetscLogObjectState((PetscObject)mat,"Rows=%d,Cols=%d",mat->M,mat->N); 1222 #endif 1223 ierr = MatStashDestroy_Private(&mat->stash);CHKERRQ(ierr); 1224 ierr = MatStashDestroy_Private(&mat->bstash);CHKERRQ(ierr); 1225 ierr = PetscFree(baij->rowners);CHKERRQ(ierr); 1226 ierr = MatDestroy(baij->A);CHKERRQ(ierr); 1227 ierr = MatDestroy(baij->B);CHKERRQ(ierr); 1228 #if defined (PETSC_USE_CTABLE) 1229 if (baij->colmap) {ierr = PetscTableDelete(baij->colmap);CHKERRQ(ierr);} 1230 #else 1231 if (baij->colmap) {ierr = PetscFree(baij->colmap);CHKERRQ(ierr);} 1232 #endif 1233 if (baij->garray) {ierr = PetscFree(baij->garray);CHKERRQ(ierr);} 1234 if (baij->lvec) {ierr = VecDestroy(baij->lvec);CHKERRQ(ierr);} 1235 if (baij->Mvctx) {ierr = VecScatterDestroy(baij->Mvctx);CHKERRQ(ierr);} 1236 if (baij->rowvalues) {ierr = PetscFree(baij->rowvalues);CHKERRQ(ierr);} 1237 if (baij->barray) {ierr = PetscFree(baij->barray);CHKERRQ(ierr);} 1238 if (baij->hd) {ierr = PetscFree(baij->hd);CHKERRQ(ierr);} 1239 #if defined(PETSC_USE_MAT_SINGLE) 1240 if (baij->setvaluescopy) {ierr = PetscFree(baij->setvaluescopy);CHKERRQ(ierr);} 1241 #endif 1242 ierr = PetscFree(baij);CHKERRQ(ierr); 1243 PetscFunctionReturn(0); 1244 } 1245 1246 #undef __FUNCT__ 1247 #define __FUNCT__ "MatMult_MPIBAIJ" 1248 int MatMult_MPIBAIJ(Mat A,Vec xx,Vec yy) 1249 { 1250 Mat_MPIBAIJ *a = (Mat_MPIBAIJ*)A->data; 1251 int ierr,nt; 1252 1253 PetscFunctionBegin; 1254 ierr = VecGetLocalSize(xx,&nt);CHKERRQ(ierr); 1255 if (nt != A->n) { 1256 SETERRQ(PETSC_ERR_ARG_SIZ,"Incompatible partition of A and xx"); 1257 } 1258 ierr = VecGetLocalSize(yy,&nt);CHKERRQ(ierr); 1259 if (nt != A->m) { 1260 SETERRQ(PETSC_ERR_ARG_SIZ,"Incompatible parition of A and yy"); 1261 } 1262 ierr = VecScatterBegin(xx,a->lvec,INSERT_VALUES,SCATTER_FORWARD,a->Mvctx);CHKERRQ(ierr); 1263 ierr = (*a->A->ops->mult)(a->A,xx,yy);CHKERRQ(ierr); 1264 ierr = VecScatterEnd(xx,a->lvec,INSERT_VALUES,SCATTER_FORWARD,a->Mvctx);CHKERRQ(ierr); 1265 ierr = (*a->B->ops->multadd)(a->B,a->lvec,yy,yy);CHKERRQ(ierr); 1266 ierr = VecScatterPostRecvs(xx,a->lvec,INSERT_VALUES,SCATTER_FORWARD,a->Mvctx);CHKERRQ(ierr); 1267 PetscFunctionReturn(0); 1268 } 1269 1270 #undef __FUNCT__ 1271 #define __FUNCT__ "MatMultAdd_MPIBAIJ" 1272 int MatMultAdd_MPIBAIJ(Mat A,Vec xx,Vec yy,Vec zz) 1273 { 1274 Mat_MPIBAIJ *a = (Mat_MPIBAIJ*)A->data; 1275 int ierr; 1276 1277 PetscFunctionBegin; 1278 ierr = VecScatterBegin(xx,a->lvec,INSERT_VALUES,SCATTER_FORWARD,a->Mvctx);CHKERRQ(ierr); 1279 ierr = (*a->A->ops->multadd)(a->A,xx,yy,zz);CHKERRQ(ierr); 1280 ierr = VecScatterEnd(xx,a->lvec,INSERT_VALUES,SCATTER_FORWARD,a->Mvctx);CHKERRQ(ierr); 1281 ierr = (*a->B->ops->multadd)(a->B,a->lvec,zz,zz);CHKERRQ(ierr); 1282 PetscFunctionReturn(0); 1283 } 1284 1285 #undef __FUNCT__ 1286 #define __FUNCT__ "MatMultTranspose_MPIBAIJ" 1287 int MatMultTranspose_MPIBAIJ(Mat A,Vec xx,Vec yy) 1288 { 1289 Mat_MPIBAIJ *a = (Mat_MPIBAIJ*)A->data; 1290 int ierr; 1291 1292 PetscFunctionBegin; 1293 /* do nondiagonal part */ 1294 ierr = (*a->B->ops->multtranspose)(a->B,xx,a->lvec);CHKERRQ(ierr); 1295 /* send it on its way */ 1296 ierr = VecScatterBegin(a->lvec,yy,ADD_VALUES,SCATTER_REVERSE,a->Mvctx);CHKERRQ(ierr); 1297 /* do local part */ 1298 ierr = (*a->A->ops->multtranspose)(a->A,xx,yy);CHKERRQ(ierr); 1299 /* receive remote parts: note this assumes the values are not actually */ 1300 /* inserted in yy until the next line, which is true for my implementation*/ 1301 /* but is not perhaps always true. */ 1302 ierr = VecScatterEnd(a->lvec,yy,ADD_VALUES,SCATTER_REVERSE,a->Mvctx);CHKERRQ(ierr); 1303 PetscFunctionReturn(0); 1304 } 1305 1306 #undef __FUNCT__ 1307 #define __FUNCT__ "MatMultTransposeAdd_MPIBAIJ" 1308 int MatMultTransposeAdd_MPIBAIJ(Mat A,Vec xx,Vec yy,Vec zz) 1309 { 1310 Mat_MPIBAIJ *a = (Mat_MPIBAIJ*)A->data; 1311 int ierr; 1312 1313 PetscFunctionBegin; 1314 /* do nondiagonal part */ 1315 ierr = (*a->B->ops->multtranspose)(a->B,xx,a->lvec);CHKERRQ(ierr); 1316 /* send it on its way */ 1317 ierr = VecScatterBegin(a->lvec,zz,ADD_VALUES,SCATTER_REVERSE,a->Mvctx);CHKERRQ(ierr); 1318 /* do local part */ 1319 ierr = (*a->A->ops->multtransposeadd)(a->A,xx,yy,zz);CHKERRQ(ierr); 1320 /* receive remote parts: note this assumes the values are not actually */ 1321 /* inserted in yy until the next line, which is true for my implementation*/ 1322 /* but is not perhaps always true. */ 1323 ierr = VecScatterEnd(a->lvec,zz,ADD_VALUES,SCATTER_REVERSE,a->Mvctx);CHKERRQ(ierr); 1324 PetscFunctionReturn(0); 1325 } 1326 1327 /* 1328 This only works correctly for square matrices where the subblock A->A is the 1329 diagonal block 1330 */ 1331 #undef __FUNCT__ 1332 #define __FUNCT__ "MatGetDiagonal_MPIBAIJ" 1333 int MatGetDiagonal_MPIBAIJ(Mat A,Vec v) 1334 { 1335 Mat_MPIBAIJ *a = (Mat_MPIBAIJ*)A->data; 1336 int ierr; 1337 1338 PetscFunctionBegin; 1339 if (A->M != A->N) SETERRQ(PETSC_ERR_SUP,"Supports only square matrix where A->A is diag block"); 1340 ierr = MatGetDiagonal(a->A,v);CHKERRQ(ierr); 1341 PetscFunctionReturn(0); 1342 } 1343 1344 #undef __FUNCT__ 1345 #define __FUNCT__ "MatScale_MPIBAIJ" 1346 int MatScale_MPIBAIJ(PetscScalar *aa,Mat A) 1347 { 1348 Mat_MPIBAIJ *a = (Mat_MPIBAIJ*)A->data; 1349 int ierr; 1350 1351 PetscFunctionBegin; 1352 ierr = MatScale(aa,a->A);CHKERRQ(ierr); 1353 ierr = MatScale(aa,a->B);CHKERRQ(ierr); 1354 PetscFunctionReturn(0); 1355 } 1356 1357 #undef __FUNCT__ 1358 #define __FUNCT__ "MatGetRow_MPIBAIJ" 1359 int MatGetRow_MPIBAIJ(Mat matin,int row,int *nz,int **idx,PetscScalar **v) 1360 { 1361 Mat_MPIBAIJ *mat = (Mat_MPIBAIJ*)matin->data; 1362 PetscScalar *vworkA,*vworkB,**pvA,**pvB,*v_p; 1363 int bs = mat->bs,bs2 = mat->bs2,i,ierr,*cworkA,*cworkB,**pcA,**pcB; 1364 int nztot,nzA,nzB,lrow,brstart = mat->rstart*bs,brend = mat->rend*bs; 1365 int *cmap,*idx_p,cstart = mat->cstart; 1366 1367 PetscFunctionBegin; 1368 if (mat->getrowactive == PETSC_TRUE) SETERRQ(PETSC_ERR_ARG_WRONGSTATE,"Already active"); 1369 mat->getrowactive = PETSC_TRUE; 1370 1371 if (!mat->rowvalues && (idx || v)) { 1372 /* 1373 allocate enough space to hold information from the longest row. 1374 */ 1375 Mat_SeqBAIJ *Aa = (Mat_SeqBAIJ*)mat->A->data,*Ba = (Mat_SeqBAIJ*)mat->B->data; 1376 int max = 1,mbs = mat->mbs,tmp; 1377 for (i=0; i<mbs; i++) { 1378 tmp = Aa->i[i+1] - Aa->i[i] + Ba->i[i+1] - Ba->i[i]; 1379 if (max < tmp) { max = tmp; } 1380 } 1381 ierr = PetscMalloc(max*bs2*(sizeof(int)+sizeof(PetscScalar)),&mat->rowvalues);CHKERRQ(ierr); 1382 mat->rowindices = (int*)(mat->rowvalues + max*bs2); 1383 } 1384 1385 if (row < brstart || row >= brend) SETERRQ(PETSC_ERR_SUP,"Only local rows") 1386 lrow = row - brstart; 1387 1388 pvA = &vworkA; pcA = &cworkA; pvB = &vworkB; pcB = &cworkB; 1389 if (!v) {pvA = 0; pvB = 0;} 1390 if (!idx) {pcA = 0; if (!v) pcB = 0;} 1391 ierr = (*mat->A->ops->getrow)(mat->A,lrow,&nzA,pcA,pvA);CHKERRQ(ierr); 1392 ierr = (*mat->B->ops->getrow)(mat->B,lrow,&nzB,pcB,pvB);CHKERRQ(ierr); 1393 nztot = nzA + nzB; 1394 1395 cmap = mat->garray; 1396 if (v || idx) { 1397 if (nztot) { 1398 /* Sort by increasing column numbers, assuming A and B already sorted */ 1399 int imark = -1; 1400 if (v) { 1401 *v = v_p = mat->rowvalues; 1402 for (i=0; i<nzB; i++) { 1403 if (cmap[cworkB[i]/bs] < cstart) v_p[i] = vworkB[i]; 1404 else break; 1405 } 1406 imark = i; 1407 for (i=0; i<nzA; i++) v_p[imark+i] = vworkA[i]; 1408 for (i=imark; i<nzB; i++) v_p[nzA+i] = vworkB[i]; 1409 } 1410 if (idx) { 1411 *idx = idx_p = mat->rowindices; 1412 if (imark > -1) { 1413 for (i=0; i<imark; i++) { 1414 idx_p[i] = cmap[cworkB[i]/bs]*bs + cworkB[i]%bs; 1415 } 1416 } else { 1417 for (i=0; i<nzB; i++) { 1418 if (cmap[cworkB[i]/bs] < cstart) 1419 idx_p[i] = cmap[cworkB[i]/bs]*bs + cworkB[i]%bs ; 1420 else break; 1421 } 1422 imark = i; 1423 } 1424 for (i=0; i<nzA; i++) idx_p[imark+i] = cstart*bs + cworkA[i]; 1425 for (i=imark; i<nzB; i++) idx_p[nzA+i] = cmap[cworkB[i]/bs]*bs + cworkB[i]%bs ; 1426 } 1427 } else { 1428 if (idx) *idx = 0; 1429 if (v) *v = 0; 1430 } 1431 } 1432 *nz = nztot; 1433 ierr = (*mat->A->ops->restorerow)(mat->A,lrow,&nzA,pcA,pvA);CHKERRQ(ierr); 1434 ierr = (*mat->B->ops->restorerow)(mat->B,lrow,&nzB,pcB,pvB);CHKERRQ(ierr); 1435 PetscFunctionReturn(0); 1436 } 1437 1438 #undef __FUNCT__ 1439 #define __FUNCT__ "MatRestoreRow_MPIBAIJ" 1440 int MatRestoreRow_MPIBAIJ(Mat mat,int row,int *nz,int **idx,PetscScalar **v) 1441 { 1442 Mat_MPIBAIJ *baij = (Mat_MPIBAIJ*)mat->data; 1443 1444 PetscFunctionBegin; 1445 if (baij->getrowactive == PETSC_FALSE) { 1446 SETERRQ(PETSC_ERR_ARG_WRONGSTATE,"MatGetRow not called"); 1447 } 1448 baij->getrowactive = PETSC_FALSE; 1449 PetscFunctionReturn(0); 1450 } 1451 1452 #undef __FUNCT__ 1453 #define __FUNCT__ "MatGetBlockSize_MPIBAIJ" 1454 int MatGetBlockSize_MPIBAIJ(Mat mat,int *bs) 1455 { 1456 Mat_MPIBAIJ *baij = (Mat_MPIBAIJ*)mat->data; 1457 1458 PetscFunctionBegin; 1459 *bs = baij->bs; 1460 PetscFunctionReturn(0); 1461 } 1462 1463 #undef __FUNCT__ 1464 #define __FUNCT__ "MatZeroEntries_MPIBAIJ" 1465 int MatZeroEntries_MPIBAIJ(Mat A) 1466 { 1467 Mat_MPIBAIJ *l = (Mat_MPIBAIJ*)A->data; 1468 int ierr; 1469 1470 PetscFunctionBegin; 1471 ierr = MatZeroEntries(l->A);CHKERRQ(ierr); 1472 ierr = MatZeroEntries(l->B);CHKERRQ(ierr); 1473 PetscFunctionReturn(0); 1474 } 1475 1476 #undef __FUNCT__ 1477 #define __FUNCT__ "MatGetInfo_MPIBAIJ" 1478 int MatGetInfo_MPIBAIJ(Mat matin,MatInfoType flag,MatInfo *info) 1479 { 1480 Mat_MPIBAIJ *a = (Mat_MPIBAIJ*)matin->data; 1481 Mat A = a->A,B = a->B; 1482 int ierr; 1483 PetscReal isend[5],irecv[5]; 1484 1485 PetscFunctionBegin; 1486 info->block_size = (PetscReal)a->bs; 1487 ierr = MatGetInfo(A,MAT_LOCAL,info);CHKERRQ(ierr); 1488 isend[0] = info->nz_used; isend[1] = info->nz_allocated; isend[2] = info->nz_unneeded; 1489 isend[3] = info->memory; isend[4] = info->mallocs; 1490 ierr = MatGetInfo(B,MAT_LOCAL,info);CHKERRQ(ierr); 1491 isend[0] += info->nz_used; isend[1] += info->nz_allocated; isend[2] += info->nz_unneeded; 1492 isend[3] += info->memory; isend[4] += info->mallocs; 1493 if (flag == MAT_LOCAL) { 1494 info->nz_used = isend[0]; 1495 info->nz_allocated = isend[1]; 1496 info->nz_unneeded = isend[2]; 1497 info->memory = isend[3]; 1498 info->mallocs = isend[4]; 1499 } else if (flag == MAT_GLOBAL_MAX) { 1500 ierr = MPI_Allreduce(isend,irecv,5,MPIU_REAL,MPI_MAX,matin->comm);CHKERRQ(ierr); 1501 info->nz_used = irecv[0]; 1502 info->nz_allocated = irecv[1]; 1503 info->nz_unneeded = irecv[2]; 1504 info->memory = irecv[3]; 1505 info->mallocs = irecv[4]; 1506 } else if (flag == MAT_GLOBAL_SUM) { 1507 ierr = MPI_Allreduce(isend,irecv,5,MPIU_REAL,MPI_SUM,matin->comm);CHKERRQ(ierr); 1508 info->nz_used = irecv[0]; 1509 info->nz_allocated = irecv[1]; 1510 info->nz_unneeded = irecv[2]; 1511 info->memory = irecv[3]; 1512 info->mallocs = irecv[4]; 1513 } else { 1514 SETERRQ1(1,"Unknown MatInfoType argument %d",flag); 1515 } 1516 info->rows_global = (PetscReal)A->M; 1517 info->columns_global = (PetscReal)A->N; 1518 info->rows_local = (PetscReal)A->m; 1519 info->columns_local = (PetscReal)A->N; 1520 info->fill_ratio_given = 0; /* no parallel LU/ILU/Cholesky */ 1521 info->fill_ratio_needed = 0; 1522 info->factor_mallocs = 0; 1523 PetscFunctionReturn(0); 1524 } 1525 1526 #undef __FUNCT__ 1527 #define __FUNCT__ "MatSetOption_MPIBAIJ" 1528 int MatSetOption_MPIBAIJ(Mat A,MatOption op) 1529 { 1530 Mat_MPIBAIJ *a = (Mat_MPIBAIJ*)A->data; 1531 int ierr; 1532 1533 PetscFunctionBegin; 1534 switch (op) { 1535 case MAT_NO_NEW_NONZERO_LOCATIONS: 1536 case MAT_YES_NEW_NONZERO_LOCATIONS: 1537 case MAT_COLUMNS_UNSORTED: 1538 case MAT_COLUMNS_SORTED: 1539 case MAT_NEW_NONZERO_ALLOCATION_ERR: 1540 case MAT_KEEP_ZEROED_ROWS: 1541 case MAT_NEW_NONZERO_LOCATION_ERR: 1542 ierr = MatSetOption(a->A,op);CHKERRQ(ierr); 1543 ierr = MatSetOption(a->B,op);CHKERRQ(ierr); 1544 break; 1545 case MAT_ROW_ORIENTED: 1546 a->roworiented = PETSC_TRUE; 1547 ierr = MatSetOption(a->A,op);CHKERRQ(ierr); 1548 ierr = MatSetOption(a->B,op);CHKERRQ(ierr); 1549 break; 1550 case MAT_ROWS_SORTED: 1551 case MAT_ROWS_UNSORTED: 1552 case MAT_YES_NEW_DIAGONALS: 1553 case MAT_USE_SINGLE_PRECISION_SOLVES: 1554 PetscLogInfo(A,"Info:MatSetOption_MPIBAIJ:Option ignored\n"); 1555 break; 1556 case MAT_COLUMN_ORIENTED: 1557 a->roworiented = PETSC_FALSE; 1558 ierr = MatSetOption(a->A,op);CHKERRQ(ierr); 1559 ierr = MatSetOption(a->B,op);CHKERRQ(ierr); 1560 break; 1561 case MAT_IGNORE_OFF_PROC_ENTRIES: 1562 a->donotstash = PETSC_TRUE; 1563 break; 1564 case MAT_NO_NEW_DIAGONALS: 1565 SETERRQ(PETSC_ERR_SUP,"MAT_NO_NEW_DIAGONALS"); 1566 case MAT_USE_HASH_TABLE: 1567 a->ht_flag = PETSC_TRUE; 1568 break; 1569 default: 1570 SETERRQ(PETSC_ERR_SUP,"unknown option"); 1571 } 1572 PetscFunctionReturn(0); 1573 } 1574 1575 #undef __FUNCT__ 1576 #define __FUNCT__ "MatTranspose_MPIBAIJ(" 1577 int MatTranspose_MPIBAIJ(Mat A,Mat *matout) 1578 { 1579 Mat_MPIBAIJ *baij = (Mat_MPIBAIJ*)A->data; 1580 Mat_SeqBAIJ *Aloc; 1581 Mat B; 1582 int ierr,M=A->M,N=A->N,*ai,*aj,i,*rvals,j,k,col; 1583 int bs=baij->bs,mbs=baij->mbs; 1584 MatScalar *a; 1585 1586 PetscFunctionBegin; 1587 if (!matout && M != N) SETERRQ(PETSC_ERR_ARG_SIZ,"Square matrix only for in-place"); 1588 ierr = MatCreateMPIBAIJ(A->comm,baij->bs,A->n,A->m,N,M,0,PETSC_NULL,0,PETSC_NULL,&B);CHKERRQ(ierr); 1589 1590 /* copy over the A part */ 1591 Aloc = (Mat_SeqBAIJ*)baij->A->data; 1592 ai = Aloc->i; aj = Aloc->j; a = Aloc->a; 1593 ierr = PetscMalloc(bs*sizeof(int),&rvals);CHKERRQ(ierr); 1594 1595 for (i=0; i<mbs; i++) { 1596 rvals[0] = bs*(baij->rstart + i); 1597 for (j=1; j<bs; j++) { rvals[j] = rvals[j-1] + 1; } 1598 for (j=ai[i]; j<ai[i+1]; j++) { 1599 col = (baij->cstart+aj[j])*bs; 1600 for (k=0; k<bs; k++) { 1601 ierr = MatSetValues_MPIBAIJ_MatScalar(B,1,&col,bs,rvals,a,INSERT_VALUES);CHKERRQ(ierr); 1602 col++; a += bs; 1603 } 1604 } 1605 } 1606 /* copy over the B part */ 1607 Aloc = (Mat_SeqBAIJ*)baij->B->data; 1608 ai = Aloc->i; aj = Aloc->j; a = Aloc->a; 1609 for (i=0; i<mbs; i++) { 1610 rvals[0] = bs*(baij->rstart + i); 1611 for (j=1; j<bs; j++) { rvals[j] = rvals[j-1] + 1; } 1612 for (j=ai[i]; j<ai[i+1]; j++) { 1613 col = baij->garray[aj[j]]*bs; 1614 for (k=0; k<bs; k++) { 1615 ierr = MatSetValues_MPIBAIJ_MatScalar(B,1,&col,bs,rvals,a,INSERT_VALUES);CHKERRQ(ierr); 1616 col++; a += bs; 1617 } 1618 } 1619 } 1620 ierr = PetscFree(rvals);CHKERRQ(ierr); 1621 ierr = MatAssemblyBegin(B,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 1622 ierr = MatAssemblyEnd(B,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 1623 1624 if (matout) { 1625 *matout = B; 1626 } else { 1627 ierr = MatHeaderCopy(A,B);CHKERRQ(ierr); 1628 } 1629 PetscFunctionReturn(0); 1630 } 1631 1632 #undef __FUNCT__ 1633 #define __FUNCT__ "MatDiagonalScale_MPIBAIJ" 1634 int MatDiagonalScale_MPIBAIJ(Mat mat,Vec ll,Vec rr) 1635 { 1636 Mat_MPIBAIJ *baij = (Mat_MPIBAIJ*)mat->data; 1637 Mat a = baij->A,b = baij->B; 1638 int ierr,s1,s2,s3; 1639 1640 PetscFunctionBegin; 1641 ierr = MatGetLocalSize(mat,&s2,&s3);CHKERRQ(ierr); 1642 if (rr) { 1643 ierr = VecGetLocalSize(rr,&s1);CHKERRQ(ierr); 1644 if (s1!=s3) SETERRQ(PETSC_ERR_ARG_SIZ,"right vector non-conforming local size"); 1645 /* Overlap communication with computation. */ 1646 ierr = VecScatterBegin(rr,baij->lvec,INSERT_VALUES,SCATTER_FORWARD,baij->Mvctx);CHKERRQ(ierr); 1647 } 1648 if (ll) { 1649 ierr = VecGetLocalSize(ll,&s1);CHKERRQ(ierr); 1650 if (s1!=s2) SETERRQ(PETSC_ERR_ARG_SIZ,"left vector non-conforming local size"); 1651 ierr = (*b->ops->diagonalscale)(b,ll,PETSC_NULL);CHKERRQ(ierr); 1652 } 1653 /* scale the diagonal block */ 1654 ierr = (*a->ops->diagonalscale)(a,ll,rr);CHKERRQ(ierr); 1655 1656 if (rr) { 1657 /* Do a scatter end and then right scale the off-diagonal block */ 1658 ierr = VecScatterEnd(rr,baij->lvec,INSERT_VALUES,SCATTER_FORWARD,baij->Mvctx);CHKERRQ(ierr); 1659 ierr = (*b->ops->diagonalscale)(b,PETSC_NULL,baij->lvec);CHKERRQ(ierr); 1660 } 1661 1662 PetscFunctionReturn(0); 1663 } 1664 1665 #undef __FUNCT__ 1666 #define __FUNCT__ "MatZeroRows_MPIBAIJ" 1667 int MatZeroRows_MPIBAIJ(Mat A,IS is,PetscScalar *diag) 1668 { 1669 Mat_MPIBAIJ *l = (Mat_MPIBAIJ*)A->data; 1670 int i,ierr,N,*rows,*owners = l->rowners,size = l->size; 1671 int *procs,*nprocs,j,idx,nsends,*work,row; 1672 int nmax,*svalues,*starts,*owner,nrecvs,rank = l->rank; 1673 int *rvalues,tag = A->tag,count,base,slen,n,*source; 1674 int *lens,imdex,*lrows,*values,bs=l->bs,rstart_bs=l->rstart_bs; 1675 MPI_Comm comm = A->comm; 1676 MPI_Request *send_waits,*recv_waits; 1677 MPI_Status recv_status,*send_status; 1678 IS istmp; 1679 PetscTruth found; 1680 1681 PetscFunctionBegin; 1682 ierr = ISGetLocalSize(is,&N);CHKERRQ(ierr); 1683 ierr = ISGetIndices(is,&rows);CHKERRQ(ierr); 1684 1685 /* first count number of contributors to each processor */ 1686 ierr = PetscMalloc(2*size*sizeof(int),&nprocs);CHKERRQ(ierr); 1687 ierr = PetscMemzero(nprocs,2*size*sizeof(int));CHKERRQ(ierr); 1688 procs = nprocs + size; 1689 ierr = PetscMalloc((N+1)*sizeof(int),&owner);CHKERRQ(ierr); /* see note*/ 1690 for (i=0; i<N; i++) { 1691 idx = rows[i]; 1692 found = PETSC_FALSE; 1693 for (j=0; j<size; j++) { 1694 if (idx >= owners[j]*bs && idx < owners[j+1]*bs) { 1695 nprocs[j]++; procs[j] = 1; owner[i] = j; found = PETSC_TRUE; break; 1696 } 1697 } 1698 if (!found) SETERRQ(PETSC_ERR_ARG_OUTOFRANGE,"Index out of range"); 1699 } 1700 nsends = 0; for (i=0; i<size; i++) { nsends += procs[i];} 1701 1702 /* inform other processors of number of messages and max length*/ 1703 ierr = PetscMalloc(2*size*sizeof(int),&work);CHKERRQ(ierr); 1704 ierr = MPI_Allreduce(nprocs,work,2*size,MPI_INT,PetscMaxSum_Op,comm);CHKERRQ(ierr); 1705 nmax = work[rank]; 1706 nrecvs = work[size+rank]; 1707 ierr = PetscFree(work);CHKERRQ(ierr); 1708 1709 /* post receives: */ 1710 ierr = PetscMalloc((nrecvs+1)*(nmax+1)*sizeof(int),&rvalues);CHKERRQ(ierr); 1711 ierr = PetscMalloc((nrecvs+1)*sizeof(MPI_Request),&recv_waits);CHKERRQ(ierr); 1712 for (i=0; i<nrecvs; i++) { 1713 ierr = MPI_Irecv(rvalues+nmax*i,nmax,MPI_INT,MPI_ANY_SOURCE,tag,comm,recv_waits+i);CHKERRQ(ierr); 1714 } 1715 1716 /* do sends: 1717 1) starts[i] gives the starting index in svalues for stuff going to 1718 the ith processor 1719 */ 1720 ierr = PetscMalloc((N+1)*sizeof(int),&svalues);CHKERRQ(ierr); 1721 ierr = PetscMalloc((nsends+1)*sizeof(MPI_Request),&send_waits);CHKERRQ(ierr); 1722 ierr = PetscMalloc((size+1)*sizeof(int),&starts);CHKERRQ(ierr); 1723 starts[0] = 0; 1724 for (i=1; i<size; i++) { starts[i] = starts[i-1] + nprocs[i-1];} 1725 for (i=0; i<N; i++) { 1726 svalues[starts[owner[i]]++] = rows[i]; 1727 } 1728 ierr = ISRestoreIndices(is,&rows);CHKERRQ(ierr); 1729 1730 starts[0] = 0; 1731 for (i=1; i<size+1; i++) { starts[i] = starts[i-1] + nprocs[i-1];} 1732 count = 0; 1733 for (i=0; i<size; i++) { 1734 if (procs[i]) { 1735 ierr = MPI_Isend(svalues+starts[i],nprocs[i],MPI_INT,i,tag,comm,send_waits+count++);CHKERRQ(ierr); 1736 } 1737 } 1738 ierr = PetscFree(starts);CHKERRQ(ierr); 1739 1740 base = owners[rank]*bs; 1741 1742 /* wait on receives */ 1743 ierr = PetscMalloc(2*(nrecvs+1)*sizeof(int),&lens);CHKERRQ(ierr); 1744 source = lens + nrecvs; 1745 count = nrecvs; slen = 0; 1746 while (count) { 1747 ierr = MPI_Waitany(nrecvs,recv_waits,&imdex,&recv_status);CHKERRQ(ierr); 1748 /* unpack receives into our local space */ 1749 ierr = MPI_Get_count(&recv_status,MPI_INT,&n);CHKERRQ(ierr); 1750 source[imdex] = recv_status.MPI_SOURCE; 1751 lens[imdex] = n; 1752 slen += n; 1753 count--; 1754 } 1755 ierr = PetscFree(recv_waits);CHKERRQ(ierr); 1756 1757 /* move the data into the send scatter */ 1758 ierr = PetscMalloc((slen+1)*sizeof(int),&lrows);CHKERRQ(ierr); 1759 count = 0; 1760 for (i=0; i<nrecvs; i++) { 1761 values = rvalues + i*nmax; 1762 for (j=0; j<lens[i]; j++) { 1763 lrows[count++] = values[j] - base; 1764 } 1765 } 1766 ierr = PetscFree(rvalues);CHKERRQ(ierr); 1767 ierr = PetscFree(lens);CHKERRQ(ierr); 1768 ierr = PetscFree(owner);CHKERRQ(ierr); 1769 ierr = PetscFree(nprocs);CHKERRQ(ierr); 1770 1771 /* actually zap the local rows */ 1772 ierr = ISCreateGeneral(PETSC_COMM_SELF,slen,lrows,&istmp);CHKERRQ(ierr); 1773 PetscLogObjectParent(A,istmp); 1774 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 seperate 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 Contributed by: Mathew Knepley 1782 */ 1783 /* must zero l->B before l->A because the (diag) case below may put values into l->B*/ 1784 ierr = MatZeroRows_SeqBAIJ(l->B,istmp,0);CHKERRQ(ierr); 1785 if (diag && (l->A->M == l->A->N)) { 1786 ierr = MatZeroRows_SeqBAIJ(l->A,istmp,diag);CHKERRQ(ierr); 1787 } else if (diag) { 1788 ierr = MatZeroRows_SeqBAIJ(l->A,istmp,0);CHKERRQ(ierr); 1789 if (((Mat_SeqBAIJ*)l->A->data)->nonew) { 1790 SETERRQ(PETSC_ERR_SUP,"MatZeroRows() on rectangular matrices cannot be used with the Mat options \n\ 1791 MAT_NO_NEW_NONZERO_LOCATIONS,MAT_NEW_NONZERO_LOCATION_ERR,MAT_NEW_NONZERO_ALLOCATION_ERR"); 1792 } 1793 for (i=0; i<slen; i++) { 1794 row = lrows[i] + rstart_bs; 1795 ierr = MatSetValues(A,1,&row,1,&row,diag,INSERT_VALUES);CHKERRQ(ierr); 1796 } 1797 ierr = MatAssemblyBegin(A,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 1798 ierr = MatAssemblyEnd(A,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 1799 } else { 1800 ierr = MatZeroRows_SeqBAIJ(l->A,istmp,0);CHKERRQ(ierr); 1801 } 1802 1803 ierr = ISDestroy(istmp);CHKERRQ(ierr); 1804 ierr = PetscFree(lrows);CHKERRQ(ierr); 1805 1806 /* wait on sends */ 1807 if (nsends) { 1808 ierr = PetscMalloc(nsends*sizeof(MPI_Status),&send_status);CHKERRQ(ierr); 1809 ierr = MPI_Waitall(nsends,send_waits,send_status);CHKERRQ(ierr); 1810 ierr = PetscFree(send_status);CHKERRQ(ierr); 1811 } 1812 ierr = PetscFree(send_waits);CHKERRQ(ierr); 1813 ierr = PetscFree(svalues);CHKERRQ(ierr); 1814 1815 PetscFunctionReturn(0); 1816 } 1817 1818 #undef __FUNCT__ 1819 #define __FUNCT__ "MatPrintHelp_MPIBAIJ" 1820 int MatPrintHelp_MPIBAIJ(Mat A) 1821 { 1822 Mat_MPIBAIJ *a = (Mat_MPIBAIJ*)A->data; 1823 MPI_Comm comm = A->comm; 1824 static int called = 0; 1825 int ierr; 1826 1827 PetscFunctionBegin; 1828 if (!a->rank) { 1829 ierr = MatPrintHelp_SeqBAIJ(a->A);CHKERRQ(ierr); 1830 } 1831 if (called) {PetscFunctionReturn(0);} else called = 1; 1832 ierr = (*PetscHelpPrintf)(comm," Options for MATMPIBAIJ matrix format (the defaults):\n");CHKERRQ(ierr); 1833 ierr = (*PetscHelpPrintf)(comm," -mat_use_hash_table <factor>: Use hashtable for efficient matrix assembly\n");CHKERRQ(ierr); 1834 PetscFunctionReturn(0); 1835 } 1836 1837 #undef __FUNCT__ 1838 #define __FUNCT__ "MatSetUnfactored_MPIBAIJ" 1839 int MatSetUnfactored_MPIBAIJ(Mat A) 1840 { 1841 Mat_MPIBAIJ *a = (Mat_MPIBAIJ*)A->data; 1842 int ierr; 1843 1844 PetscFunctionBegin; 1845 ierr = MatSetUnfactored(a->A);CHKERRQ(ierr); 1846 PetscFunctionReturn(0); 1847 } 1848 1849 static int MatDuplicate_MPIBAIJ(Mat,MatDuplicateOption,Mat *); 1850 1851 #undef __FUNCT__ 1852 #define __FUNCT__ "MatEqual_MPIBAIJ" 1853 int MatEqual_MPIBAIJ(Mat A,Mat B,PetscTruth *flag) 1854 { 1855 Mat_MPIBAIJ *matB = (Mat_MPIBAIJ*)B->data,*matA = (Mat_MPIBAIJ*)A->data; 1856 Mat a,b,c,d; 1857 PetscTruth flg; 1858 int ierr; 1859 1860 PetscFunctionBegin; 1861 ierr = PetscTypeCompare((PetscObject)B,MATMPIBAIJ,&flg);CHKERRQ(ierr); 1862 if (!flg) SETERRQ(PETSC_ERR_ARG_INCOMP,"Matrices must be same type"); 1863 a = matA->A; b = matA->B; 1864 c = matB->A; d = matB->B; 1865 1866 ierr = MatEqual(a,c,&flg);CHKERRQ(ierr); 1867 if (flg == PETSC_TRUE) { 1868 ierr = MatEqual(b,d,&flg);CHKERRQ(ierr); 1869 } 1870 ierr = MPI_Allreduce(&flg,flag,1,MPI_INT,MPI_LAND,A->comm);CHKERRQ(ierr); 1871 PetscFunctionReturn(0); 1872 } 1873 1874 1875 #undef __FUNCT__ 1876 #define __FUNCT__ "MatSetUpPreallocation_MPIBAIJ" 1877 int MatSetUpPreallocation_MPIBAIJ(Mat A) 1878 { 1879 int ierr; 1880 1881 PetscFunctionBegin; 1882 ierr = MatMPIBAIJSetPreallocation(A,1,PETSC_DEFAULT,0,PETSC_DEFAULT,0);CHKERRQ(ierr); 1883 PetscFunctionReturn(0); 1884 } 1885 1886 /* -------------------------------------------------------------------*/ 1887 static struct _MatOps MatOps_Values = { 1888 MatSetValues_MPIBAIJ, 1889 MatGetRow_MPIBAIJ, 1890 MatRestoreRow_MPIBAIJ, 1891 MatMult_MPIBAIJ, 1892 MatMultAdd_MPIBAIJ, 1893 MatMultTranspose_MPIBAIJ, 1894 MatMultTransposeAdd_MPIBAIJ, 1895 0, 1896 0, 1897 0, 1898 0, 1899 0, 1900 0, 1901 0, 1902 MatTranspose_MPIBAIJ, 1903 MatGetInfo_MPIBAIJ, 1904 MatEqual_MPIBAIJ, 1905 MatGetDiagonal_MPIBAIJ, 1906 MatDiagonalScale_MPIBAIJ, 1907 MatNorm_MPIBAIJ, 1908 MatAssemblyBegin_MPIBAIJ, 1909 MatAssemblyEnd_MPIBAIJ, 1910 0, 1911 MatSetOption_MPIBAIJ, 1912 MatZeroEntries_MPIBAIJ, 1913 MatZeroRows_MPIBAIJ, 1914 0, 1915 0, 1916 0, 1917 0, 1918 MatSetUpPreallocation_MPIBAIJ, 1919 0, 1920 0, 1921 0, 1922 0, 1923 MatDuplicate_MPIBAIJ, 1924 0, 1925 0, 1926 0, 1927 0, 1928 0, 1929 MatGetSubMatrices_MPIBAIJ, 1930 MatIncreaseOverlap_MPIBAIJ, 1931 MatGetValues_MPIBAIJ, 1932 0, 1933 MatPrintHelp_MPIBAIJ, 1934 MatScale_MPIBAIJ, 1935 0, 1936 0, 1937 0, 1938 MatGetBlockSize_MPIBAIJ, 1939 0, 1940 0, 1941 0, 1942 0, 1943 0, 1944 0, 1945 MatSetUnfactored_MPIBAIJ, 1946 0, 1947 MatSetValuesBlocked_MPIBAIJ, 1948 0, 1949 MatDestroy_MPIBAIJ, 1950 MatView_MPIBAIJ, 1951 MatGetPetscMaps_Petsc, 1952 0, 1953 0, 1954 0, 1955 0, 1956 0, 1957 0, 1958 MatGetRowMax_MPIBAIJ}; 1959 1960 1961 EXTERN_C_BEGIN 1962 #undef __FUNCT__ 1963 #define __FUNCT__ "MatGetDiagonalBlock_MPIBAIJ" 1964 int MatGetDiagonalBlock_MPIBAIJ(Mat A,PetscTruth *iscopy,MatReuse reuse,Mat *a) 1965 { 1966 PetscFunctionBegin; 1967 *a = ((Mat_MPIBAIJ *)A->data)->A; 1968 *iscopy = PETSC_FALSE; 1969 PetscFunctionReturn(0); 1970 } 1971 EXTERN_C_END 1972 1973 EXTERN_C_BEGIN 1974 #undef __FUNCT__ 1975 #define __FUNCT__ "MatCreate_MPIBAIJ" 1976 int MatCreate_MPIBAIJ(Mat B) 1977 { 1978 Mat_MPIBAIJ *b; 1979 int ierr; 1980 PetscTruth flg; 1981 1982 PetscFunctionBegin; 1983 1984 ierr = PetscNew(Mat_MPIBAIJ,&b);CHKERRQ(ierr); 1985 B->data = (void*)b; 1986 1987 ierr = PetscMemzero(b,sizeof(Mat_MPIBAIJ));CHKERRQ(ierr); 1988 ierr = PetscMemcpy(B->ops,&MatOps_Values,sizeof(struct _MatOps));CHKERRQ(ierr); 1989 B->mapping = 0; 1990 B->factor = 0; 1991 B->assembled = PETSC_FALSE; 1992 1993 B->insertmode = NOT_SET_VALUES; 1994 ierr = MPI_Comm_rank(B->comm,&b->rank);CHKERRQ(ierr); 1995 ierr = MPI_Comm_size(B->comm,&b->size);CHKERRQ(ierr); 1996 1997 /* build local table of row and column ownerships */ 1998 ierr = PetscMalloc(3*(b->size+2)*sizeof(int),&b->rowners);CHKERRQ(ierr); 1999 PetscLogObjectMemory(B,3*(b->size+2)*sizeof(int)+sizeof(struct _p_Mat)+sizeof(Mat_MPIBAIJ)); 2000 b->cowners = b->rowners + b->size + 2; 2001 b->rowners_bs = b->cowners + b->size + 2; 2002 2003 /* build cache for off array entries formed */ 2004 ierr = MatStashCreate_Private(B->comm,1,&B->stash);CHKERRQ(ierr); 2005 b->donotstash = PETSC_FALSE; 2006 b->colmap = PETSC_NULL; 2007 b->garray = PETSC_NULL; 2008 b->roworiented = PETSC_TRUE; 2009 2010 #if defined(PETSC_USE_MAT_SINGLE) 2011 /* stuff for MatSetValues_XXX in single precision */ 2012 b->setvalueslen = 0; 2013 b->setvaluescopy = PETSC_NULL; 2014 #endif 2015 2016 /* stuff used in block assembly */ 2017 b->barray = 0; 2018 2019 /* stuff used for matrix vector multiply */ 2020 b->lvec = 0; 2021 b->Mvctx = 0; 2022 2023 /* stuff for MatGetRow() */ 2024 b->rowindices = 0; 2025 b->rowvalues = 0; 2026 b->getrowactive = PETSC_FALSE; 2027 2028 /* hash table stuff */ 2029 b->ht = 0; 2030 b->hd = 0; 2031 b->ht_size = 0; 2032 b->ht_flag = PETSC_FALSE; 2033 b->ht_fact = 0; 2034 b->ht_total_ct = 0; 2035 b->ht_insert_ct = 0; 2036 2037 ierr = PetscOptionsHasName(PETSC_NULL,"-mat_use_hash_table",&flg);CHKERRQ(ierr); 2038 if (flg) { 2039 PetscReal fact = 1.39; 2040 ierr = MatSetOption(B,MAT_USE_HASH_TABLE);CHKERRQ(ierr); 2041 ierr = PetscOptionsGetReal(PETSC_NULL,"-mat_use_hash_table",&fact,PETSC_NULL);CHKERRQ(ierr); 2042 if (fact <= 1.0) fact = 1.39; 2043 ierr = MatMPIBAIJSetHashTableFactor(B,fact);CHKERRQ(ierr); 2044 PetscLogInfo(0,"MatCreateMPIBAIJ:Hash table Factor used %5.2f\n",fact); 2045 } 2046 ierr = PetscObjectComposeFunctionDynamic((PetscObject)B,"MatStoreValues_C", 2047 "MatStoreValues_MPIBAIJ", 2048 MatStoreValues_MPIBAIJ);CHKERRQ(ierr); 2049 ierr = PetscObjectComposeFunctionDynamic((PetscObject)B,"MatRetrieveValues_C", 2050 "MatRetrieveValues_MPIBAIJ", 2051 MatRetrieveValues_MPIBAIJ);CHKERRQ(ierr); 2052 ierr = PetscObjectComposeFunctionDynamic((PetscObject)B,"MatGetDiagonalBlock_C", 2053 "MatGetDiagonalBlock_MPIBAIJ", 2054 MatGetDiagonalBlock_MPIBAIJ);CHKERRQ(ierr); 2055 PetscFunctionReturn(0); 2056 } 2057 EXTERN_C_END 2058 2059 #undef __FUNCT__ 2060 #define __FUNCT__ "MatMPIBAIJSetPreallocation" 2061 /*@C 2062 MatMPIBAIJSetPreallocation - Creates a sparse parallel matrix in block AIJ format 2063 (block compressed row). For good matrix assembly performance 2064 the user should preallocate the matrix storage by setting the parameters 2065 d_nz (or d_nnz) and o_nz (or o_nnz). By setting these parameters accurately, 2066 performance can be increased by more than a factor of 50. 2067 2068 Collective on Mat 2069 2070 Input Parameters: 2071 + A - the matrix 2072 . bs - size of blockk 2073 . d_nz - number of block nonzeros per block row in diagonal portion of local 2074 submatrix (same for all local rows) 2075 . d_nnz - array containing the number of block nonzeros in the various block rows 2076 of the in diagonal portion of the local (possibly different for each block 2077 row) or PETSC_NULL. You must leave room for the diagonal entry even if it is zero. 2078 . o_nz - number of block nonzeros per block row in the off-diagonal portion of local 2079 submatrix (same for all local rows). 2080 - o_nnz - array containing the number of nonzeros in the various block rows of the 2081 off-diagonal portion of the local submatrix (possibly different for 2082 each block row) or PETSC_NULL. 2083 2084 Output Parameter: 2085 2086 2087 Options Database Keys: 2088 . -mat_no_unroll - uses code that does not unroll the loops in the 2089 block calculations (much slower) 2090 . -mat_block_size - size of the blocks to use 2091 2092 Notes: 2093 If PETSC_DECIDE or PETSC_DETERMINE is used for a particular argument on one processor 2094 than it must be used on all processors that share the object for that argument. 2095 2096 Storage Information: 2097 For a square global matrix we define each processor's diagonal portion 2098 to be its local rows and the corresponding columns (a square submatrix); 2099 each processor's off-diagonal portion encompasses the remainder of the 2100 local matrix (a rectangular submatrix). 2101 2102 The user can specify preallocated storage for the diagonal part of 2103 the local submatrix with either d_nz or d_nnz (not both). Set 2104 d_nz=PETSC_DEFAULT and d_nnz=PETSC_NULL for PETSc to control dynamic 2105 memory allocation. Likewise, specify preallocated storage for the 2106 off-diagonal part of the local submatrix with o_nz or o_nnz (not both). 2107 2108 Consider a processor that owns rows 3, 4 and 5 of a parallel matrix. In 2109 the figure below we depict these three local rows and all columns (0-11). 2110 2111 .vb 2112 0 1 2 3 4 5 6 7 8 9 10 11 2113 ------------------- 2114 row 3 | o o o d d d o o o o o o 2115 row 4 | o o o d d d o o o o o o 2116 row 5 | o o o d d d o o o o o o 2117 ------------------- 2118 .ve 2119 2120 Thus, any entries in the d locations are stored in the d (diagonal) 2121 submatrix, and any entries in the o locations are stored in the 2122 o (off-diagonal) submatrix. Note that the d and the o submatrices are 2123 stored simply in the MATSEQBAIJ format for compressed row storage. 2124 2125 Now d_nz should indicate the number of block nonzeros per row in the d matrix, 2126 and o_nz should indicate the number of block nonzeros per row in the o matrix. 2127 In general, for PDE problems in which most nonzeros are near the diagonal, 2128 one expects d_nz >> o_nz. For large problems you MUST preallocate memory 2129 or you will get TERRIBLE performance; see the users' manual chapter on 2130 matrices. 2131 2132 Level: intermediate 2133 2134 .keywords: matrix, block, aij, compressed row, sparse, parallel 2135 2136 .seealso: MatCreate(), MatCreateSeqBAIJ(), MatSetValues(), MatCreateMPIBAIJ() 2137 @*/ 2138 int MatMPIBAIJSetPreallocation(Mat B,int bs,int d_nz,int *d_nnz,int o_nz,int *o_nnz) 2139 { 2140 Mat_MPIBAIJ *b; 2141 int ierr,i; 2142 PetscTruth flg2; 2143 2144 PetscFunctionBegin; 2145 ierr = PetscTypeCompare((PetscObject)B,MATMPIBAIJ,&flg2);CHKERRQ(ierr); 2146 if (!flg2) PetscFunctionReturn(0); 2147 2148 B->preallocated = PETSC_TRUE; 2149 ierr = PetscOptionsGetInt(PETSC_NULL,"-mat_block_size",&bs,PETSC_NULL);CHKERRQ(ierr); 2150 2151 if (bs < 1) SETERRQ(PETSC_ERR_ARG_OUTOFRANGE,"Invalid block size specified, must be positive"); 2152 if (d_nz == PETSC_DEFAULT || d_nz == PETSC_DECIDE) d_nz = 5; 2153 if (o_nz == PETSC_DEFAULT || o_nz == PETSC_DECIDE) o_nz = 2; 2154 if (d_nz < 0) SETERRQ1(PETSC_ERR_ARG_OUTOFRANGE,"d_nz cannot be less than 0: value %d",d_nz); 2155 if (o_nz < 0) SETERRQ1(PETSC_ERR_ARG_OUTOFRANGE,"o_nz cannot be less than 0: value %d",o_nz); 2156 if (d_nnz) { 2157 for (i=0; i<B->m/bs; i++) { 2158 if (d_nnz[i] < 0) SETERRQ2(PETSC_ERR_ARG_OUTOFRANGE,"d_nnz cannot be less than -1: local row %d value %d",i,d_nnz[i]); 2159 } 2160 } 2161 if (o_nnz) { 2162 for (i=0; i<B->m/bs; i++) { 2163 if (o_nnz[i] < 0) SETERRQ2(PETSC_ERR_ARG_OUTOFRANGE,"o_nnz cannot be less than -1: local row %d value %d",i,o_nnz[i]); 2164 } 2165 } 2166 2167 ierr = PetscSplitOwnershipBlock(B->comm,bs,&B->m,&B->M);CHKERRQ(ierr); 2168 ierr = PetscSplitOwnershipBlock(B->comm,bs,&B->n,&B->N);CHKERRQ(ierr); 2169 ierr = PetscMapCreateMPI(B->comm,B->m,B->M,&B->rmap);CHKERRQ(ierr); 2170 ierr = PetscMapCreateMPI(B->comm,B->n,B->N,&B->cmap);CHKERRQ(ierr); 2171 2172 b = (Mat_MPIBAIJ*)B->data; 2173 b->bs = bs; 2174 b->bs2 = bs*bs; 2175 b->mbs = B->m/bs; 2176 b->nbs = B->n/bs; 2177 b->Mbs = B->M/bs; 2178 b->Nbs = B->N/bs; 2179 2180 ierr = MPI_Allgather(&b->mbs,1,MPI_INT,b->rowners+1,1,MPI_INT,B->comm);CHKERRQ(ierr); 2181 b->rowners[0] = 0; 2182 for (i=2; i<=b->size; i++) { 2183 b->rowners[i] += b->rowners[i-1]; 2184 } 2185 b->rstart = b->rowners[b->rank]; 2186 b->rend = b->rowners[b->rank+1]; 2187 2188 ierr = MPI_Allgather(&b->nbs,1,MPI_INT,b->cowners+1,1,MPI_INT,B->comm);CHKERRQ(ierr); 2189 b->cowners[0] = 0; 2190 for (i=2; i<=b->size; i++) { 2191 b->cowners[i] += b->cowners[i-1]; 2192 } 2193 b->cstart = b->cowners[b->rank]; 2194 b->cend = b->cowners[b->rank+1]; 2195 2196 for (i=0; i<=b->size; i++) { 2197 b->rowners_bs[i] = b->rowners[i]*bs; 2198 } 2199 b->rstart_bs = b->rstart*bs; 2200 b->rend_bs = b->rend*bs; 2201 b->cstart_bs = b->cstart*bs; 2202 b->cend_bs = b->cend*bs; 2203 2204 ierr = MatCreateSeqBAIJ(PETSC_COMM_SELF,bs,B->m,B->n,d_nz,d_nnz,&b->A);CHKERRQ(ierr); 2205 PetscLogObjectParent(B,b->A); 2206 ierr = MatCreateSeqBAIJ(PETSC_COMM_SELF,bs,B->m,B->N,o_nz,o_nnz,&b->B);CHKERRQ(ierr); 2207 PetscLogObjectParent(B,b->B); 2208 ierr = MatStashCreate_Private(B->comm,bs,&B->bstash);CHKERRQ(ierr); 2209 2210 PetscFunctionReturn(0); 2211 } 2212 2213 #undef __FUNCT__ 2214 #define __FUNCT__ "MatCreateMPIBAIJ" 2215 /*@C 2216 MatCreateMPIBAIJ - Creates a sparse parallel matrix in block AIJ format 2217 (block compressed row). For good matrix assembly performance 2218 the user should preallocate the matrix storage by setting the parameters 2219 d_nz (or d_nnz) and o_nz (or o_nnz). By setting these parameters accurately, 2220 performance can be increased by more than a factor of 50. 2221 2222 Collective on MPI_Comm 2223 2224 Input Parameters: 2225 + comm - MPI communicator 2226 . bs - size of blockk 2227 . m - number of local rows (or PETSC_DECIDE to have calculated if M is given) 2228 This value should be the same as the local size used in creating the 2229 y vector for the matrix-vector product y = Ax. 2230 . n - number of local columns (or PETSC_DECIDE to have calculated if N is given) 2231 This value should be the same as the local size used in creating the 2232 x vector for the matrix-vector product y = Ax. 2233 . M - number of global rows (or PETSC_DETERMINE to have calculated if m is given) 2234 . N - number of global columns (or PETSC_DETERMINE to have calculated if n is given) 2235 . d_nz - number of nonzero blocks per block row in diagonal portion of local 2236 submatrix (same for all local rows) 2237 . d_nnz - array containing the number of nonzero blocks in the various block rows 2238 of the in diagonal portion of the local (possibly different for each block 2239 row) or PETSC_NULL. You must leave room for the diagonal entry even if it is zero. 2240 . o_nz - number of nonzero blocks per block row in the off-diagonal portion of local 2241 submatrix (same for all local rows). 2242 - o_nnz - array containing the number of nonzero blocks in the various block rows of the 2243 off-diagonal portion of the local submatrix (possibly different for 2244 each block row) or PETSC_NULL. 2245 2246 Output Parameter: 2247 . A - the matrix 2248 2249 Options Database Keys: 2250 . -mat_no_unroll - uses code that does not unroll the loops in the 2251 block calculations (much slower) 2252 . -mat_block_size - size of the blocks to use 2253 2254 Notes: 2255 A nonzero block is any block that as 1 or more nonzeros in it 2256 2257 The user MUST specify either the local or global matrix dimensions 2258 (possibly both). 2259 2260 If PETSC_DECIDE or PETSC_DETERMINE is used for a particular argument on one processor 2261 than it must be used on all processors that share the object for that argument. 2262 2263 Storage Information: 2264 For a square global matrix we define each processor's diagonal portion 2265 to be its local rows and the corresponding columns (a square submatrix); 2266 each processor's off-diagonal portion encompasses the remainder of the 2267 local matrix (a rectangular submatrix). 2268 2269 The user can specify preallocated storage for the diagonal part of 2270 the local submatrix with either d_nz or d_nnz (not both). Set 2271 d_nz=PETSC_DEFAULT and d_nnz=PETSC_NULL for PETSc to control dynamic 2272 memory allocation. Likewise, specify preallocated storage for the 2273 off-diagonal part of the local submatrix with o_nz or o_nnz (not both). 2274 2275 Consider a processor that owns rows 3, 4 and 5 of a parallel matrix. In 2276 the figure below we depict these three local rows and all columns (0-11). 2277 2278 .vb 2279 0 1 2 3 4 5 6 7 8 9 10 11 2280 ------------------- 2281 row 3 | o o o d d d o o o o o o 2282 row 4 | o o o d d d o o o o o o 2283 row 5 | o o o d d d o o o o o o 2284 ------------------- 2285 .ve 2286 2287 Thus, any entries in the d locations are stored in the d (diagonal) 2288 submatrix, and any entries in the o locations are stored in the 2289 o (off-diagonal) submatrix. Note that the d and the o submatrices are 2290 stored simply in the MATSEQBAIJ format for compressed row storage. 2291 2292 Now d_nz should indicate the number of block nonzeros per row in the d matrix, 2293 and o_nz should indicate the number of block nonzeros per row in the o matrix. 2294 In general, for PDE problems in which most nonzeros are near the diagonal, 2295 one expects d_nz >> o_nz. For large problems you MUST preallocate memory 2296 or you will get TERRIBLE performance; see the users' manual chapter on 2297 matrices. 2298 2299 Level: intermediate 2300 2301 .keywords: matrix, block, aij, compressed row, sparse, parallel 2302 2303 .seealso: MatCreate(), MatCreateSeqBAIJ(), MatSetValues(), MatCreateMPIBAIJ() 2304 @*/ 2305 int MatCreateMPIBAIJ(MPI_Comm comm,int bs,int m,int n,int M,int N,int d_nz,int *d_nnz,int o_nz,int *o_nnz,Mat *A) 2306 { 2307 int ierr,size; 2308 2309 PetscFunctionBegin; 2310 ierr = MatCreate(comm,m,n,M,N,A);CHKERRQ(ierr); 2311 ierr = MPI_Comm_size(comm,&size);CHKERRQ(ierr); 2312 if (size > 1) { 2313 ierr = MatSetType(*A,MATMPIBAIJ);CHKERRQ(ierr); 2314 ierr = MatMPIBAIJSetPreallocation(*A,bs,d_nz,d_nnz,o_nz,o_nnz);CHKERRQ(ierr); 2315 } else { 2316 ierr = MatSetType(*A,MATSEQBAIJ);CHKERRQ(ierr); 2317 ierr = MatSeqBAIJSetPreallocation(*A,bs,d_nz,d_nnz);CHKERRQ(ierr); 2318 } 2319 PetscFunctionReturn(0); 2320 } 2321 2322 #undef __FUNCT__ 2323 #define __FUNCT__ "MatDuplicate_MPIBAIJ" 2324 static int MatDuplicate_MPIBAIJ(Mat matin,MatDuplicateOption cpvalues,Mat *newmat) 2325 { 2326 Mat mat; 2327 Mat_MPIBAIJ *a,*oldmat = (Mat_MPIBAIJ*)matin->data; 2328 int ierr,len=0; 2329 2330 PetscFunctionBegin; 2331 *newmat = 0; 2332 ierr = MatCreate(matin->comm,matin->m,matin->n,matin->M,matin->N,&mat);CHKERRQ(ierr); 2333 ierr = MatSetType(mat,MATMPIBAIJ);CHKERRQ(ierr); 2334 mat->preallocated = PETSC_TRUE; 2335 mat->assembled = PETSC_TRUE; 2336 a = (Mat_MPIBAIJ*)mat->data; 2337 a->bs = oldmat->bs; 2338 a->bs2 = oldmat->bs2; 2339 a->mbs = oldmat->mbs; 2340 a->nbs = oldmat->nbs; 2341 a->Mbs = oldmat->Mbs; 2342 a->Nbs = oldmat->Nbs; 2343 2344 a->rstart = oldmat->rstart; 2345 a->rend = oldmat->rend; 2346 a->cstart = oldmat->cstart; 2347 a->cend = oldmat->cend; 2348 a->size = oldmat->size; 2349 a->rank = oldmat->rank; 2350 a->donotstash = oldmat->donotstash; 2351 a->roworiented = oldmat->roworiented; 2352 a->rowindices = 0; 2353 a->rowvalues = 0; 2354 a->getrowactive = PETSC_FALSE; 2355 a->barray = 0; 2356 a->rstart_bs = oldmat->rstart_bs; 2357 a->rend_bs = oldmat->rend_bs; 2358 a->cstart_bs = oldmat->cstart_bs; 2359 a->cend_bs = oldmat->cend_bs; 2360 2361 /* hash table stuff */ 2362 a->ht = 0; 2363 a->hd = 0; 2364 a->ht_size = 0; 2365 a->ht_flag = oldmat->ht_flag; 2366 a->ht_fact = oldmat->ht_fact; 2367 a->ht_total_ct = 0; 2368 a->ht_insert_ct = 0; 2369 2370 ierr = PetscMemcpy(a->rowners,oldmat->rowners,3*(a->size+2)*sizeof(int));CHKERRQ(ierr); 2371 ierr = MatStashCreate_Private(matin->comm,1,&mat->stash);CHKERRQ(ierr); 2372 ierr = MatStashCreate_Private(matin->comm,oldmat->bs,&mat->bstash);CHKERRQ(ierr); 2373 if (oldmat->colmap) { 2374 #if defined (PETSC_USE_CTABLE) 2375 ierr = PetscTableCreateCopy(oldmat->colmap,&a->colmap);CHKERRQ(ierr); 2376 #else 2377 ierr = PetscMalloc((a->Nbs)*sizeof(int),&a->colmap);CHKERRQ(ierr); 2378 PetscLogObjectMemory(mat,(a->Nbs)*sizeof(int)); 2379 ierr = PetscMemcpy(a->colmap,oldmat->colmap,(a->Nbs)*sizeof(int));CHKERRQ(ierr); 2380 #endif 2381 } else a->colmap = 0; 2382 if (oldmat->garray && (len = ((Mat_SeqBAIJ*)(oldmat->B->data))->nbs)) { 2383 ierr = PetscMalloc(len*sizeof(int),&a->garray);CHKERRQ(ierr); 2384 PetscLogObjectMemory(mat,len*sizeof(int)); 2385 ierr = PetscMemcpy(a->garray,oldmat->garray,len*sizeof(int));CHKERRQ(ierr); 2386 } else a->garray = 0; 2387 2388 ierr = VecDuplicate(oldmat->lvec,&a->lvec);CHKERRQ(ierr); 2389 PetscLogObjectParent(mat,a->lvec); 2390 ierr = VecScatterCopy(oldmat->Mvctx,&a->Mvctx);CHKERRQ(ierr); 2391 2392 PetscLogObjectParent(mat,a->Mvctx); 2393 ierr = MatDuplicate(oldmat->A,cpvalues,&a->A);CHKERRQ(ierr); 2394 PetscLogObjectParent(mat,a->A); 2395 ierr = MatDuplicate(oldmat->B,cpvalues,&a->B);CHKERRQ(ierr); 2396 PetscLogObjectParent(mat,a->B); 2397 ierr = PetscFListDuplicate(matin->qlist,&mat->qlist);CHKERRQ(ierr); 2398 *newmat = mat; 2399 PetscFunctionReturn(0); 2400 } 2401 2402 #include "petscsys.h" 2403 2404 EXTERN_C_BEGIN 2405 #undef __FUNCT__ 2406 #define __FUNCT__ "MatLoad_MPIBAIJ" 2407 int MatLoad_MPIBAIJ(PetscViewer viewer,MatType type,Mat *newmat) 2408 { 2409 Mat A; 2410 int i,nz,ierr,j,rstart,rend,fd; 2411 PetscScalar *vals,*buf; 2412 MPI_Comm comm = ((PetscObject)viewer)->comm; 2413 MPI_Status status; 2414 int header[4],rank,size,*rowlengths = 0,M,N,m,*rowners,*browners,maxnz,*cols; 2415 int *locrowlens,*sndcounts = 0,*procsnz = 0,jj,*mycols,*ibuf; 2416 int tag = ((PetscObject)viewer)->tag,bs=1,Mbs,mbs,extra_rows; 2417 int *dlens,*odlens,*mask,*masked1,*masked2,rowcount,odcount; 2418 int dcount,kmax,k,nzcount,tmp; 2419 2420 PetscFunctionBegin; 2421 ierr = PetscOptionsGetInt(PETSC_NULL,"-matload_block_size",&bs,PETSC_NULL);CHKERRQ(ierr); 2422 2423 ierr = MPI_Comm_size(comm,&size);CHKERRQ(ierr); 2424 ierr = MPI_Comm_rank(comm,&rank);CHKERRQ(ierr); 2425 if (!rank) { 2426 ierr = PetscViewerBinaryGetDescriptor(viewer,&fd);CHKERRQ(ierr); 2427 ierr = PetscBinaryRead(fd,(char *)header,4,PETSC_INT);CHKERRQ(ierr); 2428 if (header[0] != MAT_FILE_COOKIE) SETERRQ(PETSC_ERR_FILE_UNEXPECTED,"not matrix object"); 2429 if (header[3] < 0) { 2430 SETERRQ(PETSC_ERR_FILE_UNEXPECTED,"Matrix stored in special format, cannot load as MPIBAIJ"); 2431 } 2432 } 2433 2434 ierr = MPI_Bcast(header+1,3,MPI_INT,0,comm);CHKERRQ(ierr); 2435 M = header[1]; N = header[2]; 2436 2437 if (M != N) SETERRQ(PETSC_ERR_SUP,"Can only do square matrices"); 2438 2439 /* 2440 This code adds extra rows to make sure the number of rows is 2441 divisible by the blocksize 2442 */ 2443 Mbs = M/bs; 2444 extra_rows = bs - M + bs*(Mbs); 2445 if (extra_rows == bs) extra_rows = 0; 2446 else Mbs++; 2447 if (extra_rows &&!rank) { 2448 PetscLogInfo(0,"MatLoad_MPIBAIJ:Padding loaded matrix to match blocksize\n"); 2449 } 2450 2451 /* determine ownership of all rows */ 2452 mbs = Mbs/size + ((Mbs % size) > rank); 2453 m = mbs*bs; 2454 ierr = PetscMalloc(2*(size+2)*sizeof(int),&rowners);CHKERRQ(ierr); 2455 browners = rowners + size + 1; 2456 ierr = MPI_Allgather(&mbs,1,MPI_INT,rowners+1,1,MPI_INT,comm);CHKERRQ(ierr); 2457 rowners[0] = 0; 2458 for (i=2; i<=size; i++) rowners[i] += rowners[i-1]; 2459 for (i=0; i<=size; i++) browners[i] = rowners[i]*bs; 2460 rstart = rowners[rank]; 2461 rend = rowners[rank+1]; 2462 2463 /* distribute row lengths to all processors */ 2464 ierr = PetscMalloc((rend-rstart)*bs*sizeof(int),&locrowlens);CHKERRQ(ierr); 2465 if (!rank) { 2466 ierr = PetscMalloc((M+extra_rows)*sizeof(int),&rowlengths);CHKERRQ(ierr); 2467 ierr = PetscBinaryRead(fd,rowlengths,M,PETSC_INT);CHKERRQ(ierr); 2468 for (i=0; i<extra_rows; i++) rowlengths[M+i] = 1; 2469 ierr = PetscMalloc(size*sizeof(int),&sndcounts);CHKERRQ(ierr); 2470 for (i=0; i<size; i++) sndcounts[i] = browners[i+1] - browners[i]; 2471 ierr = MPI_Scatterv(rowlengths,sndcounts,browners,MPI_INT,locrowlens,(rend-rstart)*bs,MPI_INT,0,comm);CHKERRQ(ierr); 2472 ierr = PetscFree(sndcounts);CHKERRQ(ierr); 2473 } else { 2474 ierr = MPI_Scatterv(0,0,0,MPI_INT,locrowlens,(rend-rstart)*bs,MPI_INT,0,comm);CHKERRQ(ierr); 2475 } 2476 2477 if (!rank) { 2478 /* calculate the number of nonzeros on each processor */ 2479 ierr = PetscMalloc(size*sizeof(int),&procsnz);CHKERRQ(ierr); 2480 ierr = PetscMemzero(procsnz,size*sizeof(int));CHKERRQ(ierr); 2481 for (i=0; i<size; i++) { 2482 for (j=rowners[i]*bs; j< rowners[i+1]*bs; j++) { 2483 procsnz[i] += rowlengths[j]; 2484 } 2485 } 2486 ierr = PetscFree(rowlengths);CHKERRQ(ierr); 2487 2488 /* determine max buffer needed and allocate it */ 2489 maxnz = 0; 2490 for (i=0; i<size; i++) { 2491 maxnz = PetscMax(maxnz,procsnz[i]); 2492 } 2493 ierr = PetscMalloc(maxnz*sizeof(int),&cols);CHKERRQ(ierr); 2494 2495 /* read in my part of the matrix column indices */ 2496 nz = procsnz[0]; 2497 ierr = PetscMalloc(nz*sizeof(int),&ibuf);CHKERRQ(ierr); 2498 mycols = ibuf; 2499 if (size == 1) nz -= extra_rows; 2500 ierr = PetscBinaryRead(fd,mycols,nz,PETSC_INT);CHKERRQ(ierr); 2501 if (size == 1) for (i=0; i< extra_rows; i++) { mycols[nz+i] = M+i; } 2502 2503 /* read in every ones (except the last) and ship off */ 2504 for (i=1; i<size-1; i++) { 2505 nz = procsnz[i]; 2506 ierr = PetscBinaryRead(fd,cols,nz,PETSC_INT);CHKERRQ(ierr); 2507 ierr = MPI_Send(cols,nz,MPI_INT,i,tag,comm);CHKERRQ(ierr); 2508 } 2509 /* read in the stuff for the last proc */ 2510 if (size != 1) { 2511 nz = procsnz[size-1] - extra_rows; /* the extra rows are not on the disk */ 2512 ierr = PetscBinaryRead(fd,cols,nz,PETSC_INT);CHKERRQ(ierr); 2513 for (i=0; i<extra_rows; i++) cols[nz+i] = M+i; 2514 ierr = MPI_Send(cols,nz+extra_rows,MPI_INT,size-1,tag,comm);CHKERRQ(ierr); 2515 } 2516 ierr = PetscFree(cols);CHKERRQ(ierr); 2517 } else { 2518 /* determine buffer space needed for message */ 2519 nz = 0; 2520 for (i=0; i<m; i++) { 2521 nz += locrowlens[i]; 2522 } 2523 ierr = PetscMalloc(nz*sizeof(int),&ibuf);CHKERRQ(ierr); 2524 mycols = ibuf; 2525 /* receive message of column indices*/ 2526 ierr = MPI_Recv(mycols,nz,MPI_INT,0,tag,comm,&status);CHKERRQ(ierr); 2527 ierr = MPI_Get_count(&status,MPI_INT,&maxnz);CHKERRQ(ierr); 2528 if (maxnz != nz) SETERRQ(PETSC_ERR_FILE_UNEXPECTED,"something is wrong with file"); 2529 } 2530 2531 /* loop over local rows, determining number of off diagonal entries */ 2532 ierr = PetscMalloc(2*(rend-rstart+1)*sizeof(int),&dlens);CHKERRQ(ierr); 2533 odlens = dlens + (rend-rstart); 2534 ierr = PetscMalloc(3*Mbs*sizeof(int),&mask);CHKERRQ(ierr); 2535 ierr = PetscMemzero(mask,3*Mbs*sizeof(int));CHKERRQ(ierr); 2536 masked1 = mask + Mbs; 2537 masked2 = masked1 + Mbs; 2538 rowcount = 0; nzcount = 0; 2539 for (i=0; i<mbs; i++) { 2540 dcount = 0; 2541 odcount = 0; 2542 for (j=0; j<bs; j++) { 2543 kmax = locrowlens[rowcount]; 2544 for (k=0; k<kmax; k++) { 2545 tmp = mycols[nzcount++]/bs; 2546 if (!mask[tmp]) { 2547 mask[tmp] = 1; 2548 if (tmp < rstart || tmp >= rend) masked2[odcount++] = tmp; 2549 else masked1[dcount++] = tmp; 2550 } 2551 } 2552 rowcount++; 2553 } 2554 2555 dlens[i] = dcount; 2556 odlens[i] = odcount; 2557 2558 /* zero out the mask elements we set */ 2559 for (j=0; j<dcount; j++) mask[masked1[j]] = 0; 2560 for (j=0; j<odcount; j++) mask[masked2[j]] = 0; 2561 } 2562 2563 /* create our matrix */ 2564 ierr = MatCreateMPIBAIJ(comm,bs,m,m,M+extra_rows,N+extra_rows,0,dlens,0,odlens,newmat);CHKERRQ(ierr); 2565 A = *newmat; 2566 MatSetOption(A,MAT_COLUMNS_SORTED); 2567 2568 if (!rank) { 2569 ierr = PetscMalloc(maxnz*sizeof(PetscScalar),&buf);CHKERRQ(ierr); 2570 /* read in my part of the matrix numerical values */ 2571 nz = procsnz[0]; 2572 vals = buf; 2573 mycols = ibuf; 2574 if (size == 1) nz -= extra_rows; 2575 ierr = PetscBinaryRead(fd,vals,nz,PETSC_SCALAR);CHKERRQ(ierr); 2576 if (size == 1) for (i=0; i< extra_rows; i++) { vals[nz+i] = 1.0; } 2577 2578 /* insert into matrix */ 2579 jj = rstart*bs; 2580 for (i=0; i<m; i++) { 2581 ierr = MatSetValues(A,1,&jj,locrowlens[i],mycols,vals,INSERT_VALUES);CHKERRQ(ierr); 2582 mycols += locrowlens[i]; 2583 vals += locrowlens[i]; 2584 jj++; 2585 } 2586 /* read in other processors (except the last one) and ship out */ 2587 for (i=1; i<size-1; i++) { 2588 nz = procsnz[i]; 2589 vals = buf; 2590 ierr = PetscBinaryRead(fd,vals,nz,PETSC_SCALAR);CHKERRQ(ierr); 2591 ierr = MPI_Send(vals,nz,MPIU_SCALAR,i,A->tag,comm);CHKERRQ(ierr); 2592 } 2593 /* the last proc */ 2594 if (size != 1){ 2595 nz = procsnz[i] - extra_rows; 2596 vals = buf; 2597 ierr = PetscBinaryRead(fd,vals,nz,PETSC_SCALAR);CHKERRQ(ierr); 2598 for (i=0; i<extra_rows; i++) vals[nz+i] = 1.0; 2599 ierr = MPI_Send(vals,nz+extra_rows,MPIU_SCALAR,size-1,A->tag,comm);CHKERRQ(ierr); 2600 } 2601 ierr = PetscFree(procsnz);CHKERRQ(ierr); 2602 } else { 2603 /* receive numeric values */ 2604 ierr = PetscMalloc(nz*sizeof(PetscScalar),&buf);CHKERRQ(ierr); 2605 2606 /* receive message of values*/ 2607 vals = buf; 2608 mycols = ibuf; 2609 ierr = MPI_Recv(vals,nz,MPIU_SCALAR,0,A->tag,comm,&status);CHKERRQ(ierr); 2610 ierr = MPI_Get_count(&status,MPIU_SCALAR,&maxnz);CHKERRQ(ierr); 2611 if (maxnz != nz) SETERRQ(PETSC_ERR_FILE_UNEXPECTED,"something is wrong with file"); 2612 2613 /* insert into matrix */ 2614 jj = rstart*bs; 2615 for (i=0; i<m; i++) { 2616 ierr = MatSetValues(A,1,&jj,locrowlens[i],mycols,vals,INSERT_VALUES);CHKERRQ(ierr); 2617 mycols += locrowlens[i]; 2618 vals += locrowlens[i]; 2619 jj++; 2620 } 2621 } 2622 ierr = PetscFree(locrowlens);CHKERRQ(ierr); 2623 ierr = PetscFree(buf);CHKERRQ(ierr); 2624 ierr = PetscFree(ibuf);CHKERRQ(ierr); 2625 ierr = PetscFree(rowners);CHKERRQ(ierr); 2626 ierr = PetscFree(dlens);CHKERRQ(ierr); 2627 ierr = PetscFree(mask);CHKERRQ(ierr); 2628 ierr = MatAssemblyBegin(A,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 2629 ierr = MatAssemblyEnd(A,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 2630 PetscFunctionReturn(0); 2631 } 2632 EXTERN_C_END 2633 2634 #undef __FUNCT__ 2635 #define __FUNCT__ "MatMPIBAIJSetHashTableFactor" 2636 /*@ 2637 MatMPIBAIJSetHashTableFactor - Sets the factor required to compute the size of the HashTable. 2638 2639 Input Parameters: 2640 . mat - the matrix 2641 . fact - factor 2642 2643 Collective on Mat 2644 2645 Level: advanced 2646 2647 Notes: 2648 This can also be set by the command line option: -mat_use_hash_table fact 2649 2650 .keywords: matrix, hashtable, factor, HT 2651 2652 .seealso: MatSetOption() 2653 @*/ 2654 int MatMPIBAIJSetHashTableFactor(Mat mat,PetscReal fact) 2655 { 2656 Mat_MPIBAIJ *baij; 2657 int ierr; 2658 PetscTruth flg; 2659 2660 PetscFunctionBegin; 2661 PetscValidHeaderSpecific(mat,MAT_COOKIE); 2662 ierr = PetscTypeCompare((PetscObject)mat,MATMPIBAIJ,&flg);CHKERRQ(ierr); 2663 if (!flg) { 2664 SETERRQ(PETSC_ERR_ARG_WRONG,"Incorrect matrix type. Use MPIBAIJ only."); 2665 } 2666 baij = (Mat_MPIBAIJ*)mat->data; 2667 baij->ht_fact = fact; 2668 PetscFunctionReturn(0); 2669 } 2670 2671 #undef __FUNCT__ 2672 #define __FUNCT__ "MatMPIBAIJGetSeqBAIJ" 2673 int MatMPIBAIJGetSeqBAIJ(Mat A,Mat *Ad,Mat *Ao,int **colmap) 2674 { 2675 Mat_MPIBAIJ *a = (Mat_MPIBAIJ *)A->data; 2676 PetscFunctionBegin; 2677 *Ad = a->A; 2678 *Ao = a->B; 2679 *colmap = a->garray; 2680 PetscFunctionReturn(0); 2681 } 2682