1 #define PETSCMAT_DLL 2 3 /* 4 Provides an interface to the UMFPACKv5.1 sparse solver 5 6 When build with PETSC_USE_64BIT_INDICES this will use UF_Long as the 7 integer type in UMFPACK, otherwise it will use int. This means 8 all integers in this file as simply declared as PetscInt. Also it means 9 that UMFPACK UL_Long version MUST be built with 64 bit integers when used. 10 11 */ 12 #include "src/mat/impls/aij/seq/aij.h" 13 14 #if defined(PETSC_USE_64BIT_INDICES) 15 #if defined(PETSC_USE_COMPLEX) 16 #define umfpack_UMF_free_symbolic umfpack_zl_free_symbolic 17 #define umfpack_UMF_free_numeric umfpack_zl_free_numeric 18 #define umfpack_UMF_wsolve umfpack_zl_wsolve 19 #define umfpack_UMF_numeric umfpack_zl_numeric 20 #define umfpack_UMF_report_numeric umfpack_zl_report_numeric 21 #define umfpack_UMF_report_control umfpack_zl_report_control 22 #define umfpack_UMF_report_status umfpack_zl_report_status 23 #define umfpack_UMF_report_info umfpack_zl_report_info 24 #define umfpack_UMF_report_symbolic umfpack_zl_report_symbolic 25 #define umfpack_UMF_qsymbolic umfpack_zl_qsymbolic 26 #define umfpack_UMF_symbolic umfpack_zl_symbolic 27 #define umfpack_UMF_defaults umfpack_zl_defaults 28 29 #else 30 #define umfpack_UMF_free_symbolic umfpack_dl_free_symbolic 31 #define umfpack_UMF_free_numeric umfpack_dl_free_numeric 32 #define umfpack_UMF_wsolve umfpack_dl_wsolve 33 #define umfpack_UMF_numeric umfpack_dl_numeric 34 #define umfpack_UMF_report_numeric umfpack_dl_report_numeric 35 #define umfpack_UMF_report_control umfpack_dl_report_control 36 #define umfpack_UMF_report_status umfpack_dl_report_status 37 #define umfpack_UMF_report_info umfpack_dl_report_info 38 #define umfpack_UMF_report_symbolic umfpack_dl_report_symbolic 39 #define umfpack_UMF_qsymbolic umfpack_dl_qsymbolic 40 #define umfpack_UMF_symbolic umfpack_dl_symbolic 41 #define umfpack_UMF_defaults umfpack_dl_defaults 42 #endif 43 44 #else 45 #if defined(PETSC_USE_COMPLEX) 46 #define umfpack_UMF_free_symbolic umfpack_zi_free_symbolic 47 #define umfpack_UMF_free_numeric umfpack_zi_free_numeric 48 #define umfpack_UMF_wsolve umfpack_zi_wsolve 49 #define umfpack_UMF_numeric umfpack_zi_numeric 50 #define umfpack_UMF_report_numeric umfpack_zi_report_numeric 51 #define umfpack_UMF_report_control umfpack_zi_report_control 52 #define umfpack_UMF_report_status umfpack_zi_report_status 53 #define umfpack_UMF_report_info umfpack_zi_report_info 54 #define umfpack_UMF_report_symbolic umfpack_zi_report_symbolic 55 #define umfpack_UMF_qsymbolic umfpack_zi_qsymbolic 56 #define umfpack_UMF_symbolic umfpack_zi_symbolic 57 #define umfpack_UMF_defaults umfpack_zi_defaults 58 59 #else 60 #define umfpack_UMF_free_symbolic umfpack_di_free_symbolic 61 #define umfpack_UMF_free_numeric umfpack_di_free_numeric 62 #define umfpack_UMF_wsolve umfpack_di_wsolve 63 #define umfpack_UMF_numeric umfpack_di_numeric 64 #define umfpack_UMF_report_numeric umfpack_di_report_numeric 65 #define umfpack_UMF_report_control umfpack_di_report_control 66 #define umfpack_UMF_report_status umfpack_di_report_status 67 #define umfpack_UMF_report_info umfpack_di_report_info 68 #define umfpack_UMF_report_symbolic umfpack_di_report_symbolic 69 #define umfpack_UMF_qsymbolic umfpack_di_qsymbolic 70 #define umfpack_UMF_symbolic umfpack_di_symbolic 71 #define umfpack_UMF_defaults umfpack_di_defaults 72 #endif 73 #endif 74 75 76 #define UF_long long long 77 #define UF_long_max LONG_LONG_MAX 78 #define UF_long_id "%lld" 79 80 EXTERN_C_BEGIN 81 #include "umfpack.h" 82 EXTERN_C_END 83 84 typedef struct { 85 void *Symbolic, *Numeric; 86 double Info[UMFPACK_INFO], Control[UMFPACK_CONTROL],*W; 87 PetscInt *Wi,*ai,*aj,*perm_c; 88 PetscScalar *av; 89 MatStructure flg; 90 PetscTruth PetscMatOdering; 91 92 /* Flag to clean up UMFPACK objects during Destroy */ 93 PetscTruth CleanUpUMFPACK; 94 } Mat_UMFPACK; 95 96 #undef __FUNCT__ 97 #define __FUNCT__ "MatDestroy_UMFPACK" 98 PetscErrorCode MatDestroy_UMFPACK(Mat A) 99 { 100 PetscErrorCode ierr; 101 Mat_UMFPACK *lu=(Mat_UMFPACK*)A->spptr; 102 103 PetscFunctionBegin; 104 if (lu->CleanUpUMFPACK) { 105 umfpack_UMF_free_symbolic(&lu->Symbolic); 106 umfpack_UMF_free_numeric(&lu->Numeric); 107 ierr = PetscFree(lu->Wi);CHKERRQ(ierr); 108 ierr = PetscFree(lu->W);CHKERRQ(ierr); 109 if (lu->PetscMatOdering) { 110 ierr = PetscFree(lu->perm_c);CHKERRQ(ierr); 111 } 112 } 113 ierr = MatDestroy_SeqAIJ(A);CHKERRQ(ierr); 114 PetscFunctionReturn(0); 115 } 116 117 #undef __FUNCT__ 118 #define __FUNCT__ "MatSolve_UMFPACK" 119 PetscErrorCode MatSolve_UMFPACK(Mat A,Vec b,Vec x) 120 { 121 Mat_UMFPACK *lu = (Mat_UMFPACK*)A->spptr; 122 PetscScalar *av=lu->av,*ba,*xa; 123 PetscErrorCode ierr; 124 PetscInt *ai=lu->ai,*aj=lu->aj,status; 125 126 PetscFunctionBegin; 127 /* solve Ax = b by umfpack_*_wsolve */ 128 /* ----------------------------------*/ 129 130 ierr = VecConjugate(b); 131 132 ierr = VecGetArray(b,&ba); 133 ierr = VecGetArray(x,&xa); 134 135 status = umfpack_UMF_wsolve(UMFPACK_At,ai,aj,av,xa,ba,lu->Numeric,lu->Control,lu->Info,lu->Wi,lu->W); 136 umfpack_UMF_report_info(lu->Control, lu->Info); 137 if (status < 0){ 138 umfpack_UMF_report_status(lu->Control, status); 139 SETERRQ(PETSC_ERR_LIB,"umfpack_UMF_wsolve failed"); 140 } 141 142 ierr = VecRestoreArray(b,&ba); 143 ierr = VecRestoreArray(x,&xa); 144 145 ierr = VecConjugate(b); 146 ierr = VecConjugate(x); 147 148 PetscFunctionReturn(0); 149 } 150 151 #undef __FUNCT__ 152 #define __FUNCT__ "MatLUFactorNumeric_UMFPACK" 153 PetscErrorCode MatLUFactorNumeric_UMFPACK(Mat F,Mat A,const MatFactorInfo *info) 154 { 155 Mat_UMFPACK *lu=(Mat_UMFPACK*)(F)->spptr; 156 PetscErrorCode ierr; 157 PetscInt *ai=lu->ai,*aj=lu->aj,m=A->rmap->n,status; 158 PetscScalar *av=lu->av; 159 160 PetscFunctionBegin; 161 /* numeric factorization of A' */ 162 /* ----------------------------*/ 163 164 if (lu->flg == SAME_NONZERO_PATTERN && lu->Numeric){ 165 umfpack_UMF_free_numeric(&lu->Numeric); 166 } 167 #if defined(PETSC_USE_COMPLEX) 168 status = umfpack_UMF_numeric(ai,aj,(double*)av,NULL,lu->Symbolic,&lu->Numeric,lu->Control,lu->Info); 169 #else 170 status = umfpack_UMF_numeric(ai,aj,av,lu->Symbolic,&lu->Numeric,lu->Control,lu->Info); 171 #endif 172 if (status < 0) { 173 umfpack_UMF_report_status(lu->Control, status); 174 SETERRQ(PETSC_ERR_LIB,"umfpack_UMF_numeric failed"); 175 } 176 /* report numeric factorization of A' when Control[PRL] > 3 */ 177 (void) umfpack_UMF_report_numeric(lu->Numeric, lu->Control); 178 179 if (lu->flg == DIFFERENT_NONZERO_PATTERN){ /* first numeric factorization */ 180 /* allocate working space to be used by Solve */ 181 ierr = PetscMalloc(m * sizeof(PetscInt), &lu->Wi);CHKERRQ(ierr); 182 ierr = PetscMalloc(5*m * sizeof(PetscScalar), &lu->W);CHKERRQ(ierr); 183 } 184 185 lu->flg = SAME_NONZERO_PATTERN; 186 lu->CleanUpUMFPACK = PETSC_TRUE; 187 (F)->ops->solve = MatSolve_UMFPACK; 188 PetscFunctionReturn(0); 189 } 190 191 /* 192 Note the r permutation is ignored 193 */ 194 #undef __FUNCT__ 195 #define __FUNCT__ "MatLUFactorSymbolic_UMFPACK" 196 PetscErrorCode MatLUFactorSymbolic_UMFPACK(Mat F,Mat A,IS r,IS c,const MatFactorInfo *info) 197 { 198 Mat_SeqAIJ *mat=(Mat_SeqAIJ*)A->data; 199 Mat_UMFPACK *lu = (Mat_UMFPACK*)(F->spptr); 200 PetscErrorCode ierr; 201 PetscInt i,m=A->rmap->n,n=A->cmap->n; 202 const PetscInt *ra; 203 PetscInt status; 204 PetscScalar *av=mat->a; 205 206 PetscFunctionBegin; 207 if (lu->PetscMatOdering) { 208 ierr = ISGetIndices(r,&ra);CHKERRQ(ierr); 209 ierr = PetscMalloc(m*sizeof(PetscInt),&lu->perm_c);CHKERRQ(ierr); 210 /* we cannot simply memcpy on 64 bit archs */ 211 for(i = 0; i < m; i++) lu->perm_c[i] = ra[i]; 212 ierr = ISRestoreIndices(r,&ra);CHKERRQ(ierr); 213 } 214 215 lu->ai = mat->i; 216 lu->aj = mat->j; 217 218 /* print the control parameters */ 219 if(lu->Control[UMFPACK_PRL] > 1) umfpack_UMF_report_control(lu->Control); 220 221 /* symbolic factorization of A' */ 222 /* ---------------------------------------------------------------------- */ 223 if (lu->PetscMatOdering) { /* use Petsc row ordering */ 224 #if !defined(PETSC_USE_COMPLEX) 225 status = umfpack_UMF_qsymbolic(n,m,lu->ai,lu->aj,av,lu->perm_c,&lu->Symbolic,lu->Control,lu->Info); 226 #else 227 status = umfpack_UMF_qsymbolic(n,m,lu->ai,lu->aj,av,NULL,lu->perm_c,&lu->Symbolic,lu->Control,lu->Info); 228 #endif 229 } else { /* use Umfpack col ordering */ 230 #if !defined(PETSC_USE_COMPLEX) 231 status = umfpack_UMF_symbolic(n,m,lu->ai,lu->aj,av,&lu->Symbolic,lu->Control,lu->Info); 232 #else 233 status = umfpack_UMF_symbolic(n,m,lu->ai,lu->aj,av,NULL,&lu->Symbolic,lu->Control,lu->Info); 234 #endif 235 } 236 if (status < 0){ 237 umfpack_UMF_report_info(lu->Control, lu->Info); 238 umfpack_UMF_report_status(lu->Control, status); 239 SETERRQ(PETSC_ERR_LIB,"umfpack_UMF_symbolic failed"); 240 } 241 /* report sumbolic factorization of A' when Control[PRL] > 3 */ 242 (void) umfpack_UMF_report_symbolic(lu->Symbolic, lu->Control); 243 244 lu->flg = DIFFERENT_NONZERO_PATTERN; 245 lu->av = av; 246 lu->CleanUpUMFPACK = PETSC_TRUE; 247 (F)->ops->lufactornumeric = MatLUFactorNumeric_UMFPACK; 248 PetscFunctionReturn(0); 249 } 250 251 #undef __FUNCT__ 252 #define __FUNCT__ "MatFactorInfo_UMFPACK" 253 PetscErrorCode MatFactorInfo_UMFPACK(Mat A,PetscViewer viewer) 254 { 255 Mat_UMFPACK *lu= (Mat_UMFPACK*)A->spptr; 256 PetscErrorCode ierr; 257 258 PetscFunctionBegin; 259 /* check if matrix is UMFPACK type */ 260 if (A->ops->solve != MatSolve_UMFPACK) PetscFunctionReturn(0); 261 262 ierr = PetscViewerASCIIPrintf(viewer,"UMFPACK run parameters:\n");CHKERRQ(ierr); 263 /* Control parameters used by reporting routiones */ 264 ierr = PetscViewerASCIIPrintf(viewer," Control[UMFPACK_PRL]: %g\n",lu->Control[UMFPACK_PRL]);CHKERRQ(ierr); 265 266 /* Control parameters used by symbolic factorization */ 267 ierr = PetscViewerASCIIPrintf(viewer," Control[UMFPACK_STRATEGY]: %g\n",lu->Control[UMFPACK_STRATEGY]);CHKERRQ(ierr); 268 ierr = PetscViewerASCIIPrintf(viewer," Control[UMFPACK_DENSE_COL]: %g\n",lu->Control[UMFPACK_DENSE_COL]);CHKERRQ(ierr); 269 ierr = PetscViewerASCIIPrintf(viewer," Control[UMFPACK_DENSE_ROW]: %g\n",lu->Control[UMFPACK_DENSE_ROW]);CHKERRQ(ierr); 270 ierr = PetscViewerASCIIPrintf(viewer," Control[UMFPACK_AMD_DENSE]: %g\n",lu->Control[UMFPACK_AMD_DENSE]);CHKERRQ(ierr); 271 ierr = PetscViewerASCIIPrintf(viewer," Control[UMFPACK_BLOCK_SIZE]: %g\n",lu->Control[UMFPACK_BLOCK_SIZE]);CHKERRQ(ierr); 272 ierr = PetscViewerASCIIPrintf(viewer," Control[UMFPACK_2BY2_TOLERANCE]: %g\n",lu->Control[UMFPACK_2BY2_TOLERANCE]);CHKERRQ(ierr); 273 ierr = PetscViewerASCIIPrintf(viewer," Control[UMFPACK_FIXQ]: %g\n",lu->Control[UMFPACK_FIXQ]);CHKERRQ(ierr); 274 ierr = PetscViewerASCIIPrintf(viewer," Control[UMFPACK_AGGRESSIVE]: %g\n",lu->Control[UMFPACK_AGGRESSIVE]);CHKERRQ(ierr); 275 276 /* Control parameters used by numeric factorization */ 277 ierr = PetscViewerASCIIPrintf(viewer," Control[UMFPACK_PIVOT_TOLERANCE]: %g\n",lu->Control[UMFPACK_PIVOT_TOLERANCE]);CHKERRQ(ierr); 278 ierr = PetscViewerASCIIPrintf(viewer," Control[UMFPACK_SYM_PIVOT_TOLERANCE]: %g\n",lu->Control[UMFPACK_SYM_PIVOT_TOLERANCE]);CHKERRQ(ierr); 279 ierr = PetscViewerASCIIPrintf(viewer," Control[UMFPACK_SCALE]: %g\n",lu->Control[UMFPACK_SCALE]);CHKERRQ(ierr); 280 ierr = PetscViewerASCIIPrintf(viewer," Control[UMFPACK_ALLOC_INIT]: %g\n",lu->Control[UMFPACK_ALLOC_INIT]);CHKERRQ(ierr); 281 ierr = PetscViewerASCIIPrintf(viewer," Control[UMFPACK_DROPTOL]: %g\n",lu->Control[UMFPACK_DROPTOL]);CHKERRQ(ierr); 282 283 /* Control parameters used by solve */ 284 ierr = PetscViewerASCIIPrintf(viewer," Control[UMFPACK_IRSTEP]: %g\n",lu->Control[UMFPACK_IRSTEP]);CHKERRQ(ierr); 285 286 /* mat ordering */ 287 if(!lu->PetscMatOdering) ierr = PetscViewerASCIIPrintf(viewer," UMFPACK default matrix ordering is used (not the PETSc matrix ordering) \n");CHKERRQ(ierr); 288 289 PetscFunctionReturn(0); 290 } 291 292 #undef __FUNCT__ 293 #define __FUNCT__ "MatView_UMFPACK" 294 PetscErrorCode MatView_UMFPACK(Mat A,PetscViewer viewer) 295 { 296 PetscErrorCode ierr; 297 PetscTruth iascii; 298 PetscViewerFormat format; 299 300 PetscFunctionBegin; 301 ierr = MatView_SeqAIJ(A,viewer);CHKERRQ(ierr); 302 303 ierr = PetscTypeCompare((PetscObject)viewer,PETSC_VIEWER_ASCII,&iascii);CHKERRQ(ierr); 304 if (iascii) { 305 ierr = PetscViewerGetFormat(viewer,&format);CHKERRQ(ierr); 306 if (format == PETSC_VIEWER_ASCII_INFO) { 307 ierr = MatFactorInfo_UMFPACK(A,viewer);CHKERRQ(ierr); 308 } 309 } 310 PetscFunctionReturn(0); 311 } 312 313 /*MC 314 MAT_SOLVER_UMFPACK = "umfpack" - A matrix type providing direct solvers (LU) for sequential matrices 315 via the external package UMFPACK. 316 317 config/configure.py --download-umfpack to install PETSc to use UMFPACK 318 319 Consult UMFPACK documentation for more information about the Control parameters 320 which correspond to the options database keys below. 321 322 Options Database Keys: 323 + -mat_umfpack_prl - UMFPACK print level: Control[UMFPACK_PRL] 324 . -mat_umfpack_strategy <AUTO> (choose one of) AUTO UNSYMMETRIC SYMMETRIC 2BY2 325 . -mat_umfpack_dense_col <alpha_c> - UMFPACK dense column threshold: Control[UMFPACK_DENSE_COL] 326 . -mat_umfpack_dense_row <0.2>: Control[UMFPACK_DENSE_ROW] 327 . -mat_umfpack_amd_dense <10>: Control[UMFPACK_AMD_DENSE] 328 . -mat_umfpack_block_size <bs> - UMFPACK block size for BLAS-Level 3 calls: Control[UMFPACK_BLOCK_SIZE] 329 . -mat_umfpack_2by2_tolerance <0.01>: Control[UMFPACK_2BY2_TOLERANCE] 330 . -mat_umfpack_fixq <0>: Control[UMFPACK_FIXQ] 331 . -mat_umfpack_aggressive <1>: Control[UMFPACK_AGGRESSIVE] 332 . -mat_umfpack_pivot_tolerance <delta> - UMFPACK partial pivot tolerance: Control[UMFPACK_PIVOT_TOLERANCE] 333 . -mat_umfpack_sym_pivot_tolerance <0.001>: Control[UMFPACK_SYM_PIVOT_TOLERANCE] 334 . -mat_umfpack_scale <NONE> (choose one of) NONE SUM MAX 335 . -mat_umfpack_alloc_init <delta> - UMFPACK factorized matrix allocation modifier: Control[UMFPACK_ALLOC_INIT] 336 . -mat_umfpack_droptol <0>: Control[UMFPACK_DROPTOL] 337 - -mat_umfpack_irstep <maxit> - UMFPACK maximum number of iterative refinement steps: Control[UMFPACK_IRSTEP] 338 339 Level: beginner 340 341 .seealso: PCLU, MAT_SOLVER_SUPERLU, MAT_SOLVER_MUMPS, MAT_SOLVER_SPOOLES 342 M*/ 343 EXTERN_C_BEGIN 344 #undef __FUNCT__ 345 #define __FUNCT__ "MatGetFactor_seqaij_umfpack" 346 PetscErrorCode MatGetFactor_seqaij_umfpack(Mat A,MatFactorType ftype,Mat *F) 347 { 348 Mat B; 349 Mat_UMFPACK *lu; 350 PetscErrorCode ierr; 351 PetscInt m=A->rmap->n,n=A->cmap->n,idx; 352 353 const char *strategy[]={"AUTO","UNSYMMETRIC","SYMMETRIC","2BY2"}, 354 *scale[]={"NONE","SUM","MAX"}; 355 PetscTruth flg; 356 357 PetscFunctionBegin; 358 /* Create the factorization matrix F */ 359 ierr = MatCreate(((PetscObject)A)->comm,&B);CHKERRQ(ierr); 360 ierr = MatSetSizes(B,PETSC_DECIDE,PETSC_DECIDE,m,n);CHKERRQ(ierr); 361 ierr = MatSetType(B,((PetscObject)A)->type_name);CHKERRQ(ierr); 362 ierr = MatSeqAIJSetPreallocation(B,0,PETSC_NULL);CHKERRQ(ierr); 363 ierr = PetscNewLog(B,Mat_UMFPACK,&lu);CHKERRQ(ierr); 364 B->spptr = lu; 365 B->ops->lufactorsymbolic = MatLUFactorSymbolic_UMFPACK; 366 B->ops->destroy = MatDestroy_UMFPACK; 367 B->ops->view = MatView_UMFPACK; 368 B->factor = MAT_FACTOR_LU; 369 B->assembled = PETSC_TRUE; /* required by -ksp_view */ 370 B->preallocated = PETSC_TRUE; 371 372 /* initializations */ 373 /* ------------------------------------------------*/ 374 /* get the default control parameters */ 375 umfpack_UMF_defaults(lu->Control); 376 lu->perm_c = PETSC_NULL; /* use defaul UMFPACK col permutation */ 377 lu->Control[UMFPACK_IRSTEP] = 0; /* max num of iterative refinement steps to attempt */ 378 379 ierr = PetscOptionsBegin(((PetscObject)A)->comm,((PetscObject)A)->prefix,"UMFPACK Options","Mat");CHKERRQ(ierr); 380 /* Control parameters used by reporting routiones */ 381 ierr = PetscOptionsReal("-mat_umfpack_prl","Control[UMFPACK_PRL]","None",lu->Control[UMFPACK_PRL],&lu->Control[UMFPACK_PRL],PETSC_NULL);CHKERRQ(ierr); 382 383 /* Control parameters for symbolic factorization */ 384 ierr = PetscOptionsEList("-mat_umfpack_strategy","ordering and pivoting strategy","None",strategy,4,strategy[0],&idx,&flg);CHKERRQ(ierr); 385 if (flg) { 386 switch (idx){ 387 case 0: lu->Control[UMFPACK_STRATEGY] = UMFPACK_STRATEGY_AUTO; break; 388 case 1: lu->Control[UMFPACK_STRATEGY] = UMFPACK_STRATEGY_UNSYMMETRIC; break; 389 case 2: lu->Control[UMFPACK_STRATEGY] = UMFPACK_STRATEGY_SYMMETRIC; break; 390 case 3: lu->Control[UMFPACK_STRATEGY] = UMFPACK_STRATEGY_2BY2; break; 391 } 392 } 393 ierr = PetscOptionsReal("-mat_umfpack_dense_col","Control[UMFPACK_DENSE_COL]","None",lu->Control[UMFPACK_DENSE_COL],&lu->Control[UMFPACK_DENSE_COL],PETSC_NULL);CHKERRQ(ierr); 394 ierr = PetscOptionsReal("-mat_umfpack_dense_row","Control[UMFPACK_DENSE_ROW]","None",lu->Control[UMFPACK_DENSE_ROW],&lu->Control[UMFPACK_DENSE_ROW],PETSC_NULL);CHKERRQ(ierr); 395 ierr = PetscOptionsReal("-mat_umfpack_amd_dense","Control[UMFPACK_AMD_DENSE]","None",lu->Control[UMFPACK_AMD_DENSE],&lu->Control[UMFPACK_AMD_DENSE],PETSC_NULL);CHKERRQ(ierr); 396 ierr = PetscOptionsReal("-mat_umfpack_block_size","Control[UMFPACK_BLOCK_SIZE]","None",lu->Control[UMFPACK_BLOCK_SIZE],&lu->Control[UMFPACK_BLOCK_SIZE],PETSC_NULL);CHKERRQ(ierr); 397 ierr = PetscOptionsReal("-mat_umfpack_2by2_tolerance","Control[UMFPACK_2BY2_TOLERANCE]","None",lu->Control[UMFPACK_2BY2_TOLERANCE],&lu->Control[UMFPACK_2BY2_TOLERANCE],PETSC_NULL);CHKERRQ(ierr); 398 ierr = PetscOptionsReal("-mat_umfpack_fixq","Control[UMFPACK_FIXQ]","None",lu->Control[UMFPACK_FIXQ],&lu->Control[UMFPACK_FIXQ],PETSC_NULL);CHKERRQ(ierr); 399 ierr = PetscOptionsReal("-mat_umfpack_aggressive","Control[UMFPACK_AGGRESSIVE]","None",lu->Control[UMFPACK_AGGRESSIVE],&lu->Control[UMFPACK_AGGRESSIVE],PETSC_NULL);CHKERRQ(ierr); 400 401 /* Control parameters used by numeric factorization */ 402 ierr = PetscOptionsReal("-mat_umfpack_pivot_tolerance","Control[UMFPACK_PIVOT_TOLERANCE]","None",lu->Control[UMFPACK_PIVOT_TOLERANCE],&lu->Control[UMFPACK_PIVOT_TOLERANCE],PETSC_NULL);CHKERRQ(ierr); 403 ierr = PetscOptionsReal("-mat_umfpack_sym_pivot_tolerance","Control[UMFPACK_SYM_PIVOT_TOLERANCE]","None",lu->Control[UMFPACK_SYM_PIVOT_TOLERANCE],&lu->Control[UMFPACK_SYM_PIVOT_TOLERANCE],PETSC_NULL);CHKERRQ(ierr); 404 ierr = PetscOptionsEList("-mat_umfpack_scale","Control[UMFPACK_SCALE]","None",scale,3,scale[0],&idx,&flg);CHKERRQ(ierr); 405 if (flg) { 406 switch (idx){ 407 case 0: lu->Control[UMFPACK_SCALE] = UMFPACK_SCALE_NONE; break; 408 case 1: lu->Control[UMFPACK_SCALE] = UMFPACK_SCALE_SUM; break; 409 case 2: lu->Control[UMFPACK_SCALE] = UMFPACK_SCALE_MAX; break; 410 } 411 } 412 ierr = PetscOptionsReal("-mat_umfpack_alloc_init","Control[UMFPACK_ALLOC_INIT]","None",lu->Control[UMFPACK_ALLOC_INIT],&lu->Control[UMFPACK_ALLOC_INIT],PETSC_NULL);CHKERRQ(ierr); 413 ierr = PetscOptionsReal("-mat_umfpack_front_alloc_init","Control[UMFPACK_FRONT_ALLOC_INIT]","None",lu->Control[UMFPACK_FRONT_ALLOC_INIT],&lu->Control[UMFPACK_ALLOC_INIT],PETSC_NULL);CHKERRQ(ierr); 414 ierr = PetscOptionsReal("-mat_umfpack_droptol","Control[UMFPACK_DROPTOL]","None",lu->Control[UMFPACK_DROPTOL],&lu->Control[UMFPACK_DROPTOL],PETSC_NULL);CHKERRQ(ierr); 415 416 /* Control parameters used by solve */ 417 ierr = PetscOptionsReal("-mat_umfpack_irstep","Control[UMFPACK_IRSTEP]","None",lu->Control[UMFPACK_IRSTEP],&lu->Control[UMFPACK_IRSTEP],PETSC_NULL);CHKERRQ(ierr); 418 419 /* use Petsc mat ordering (note: size is for the transpose, and PETSc r = Umfpack perm_c) */ 420 ierr = PetscOptionsHasName(PETSC_NULL,"-pc_factor_mat_ordering_type",&lu->PetscMatOdering);CHKERRQ(ierr); 421 PetscOptionsEnd(); 422 *F = B; 423 PetscFunctionReturn(0); 424 } 425 EXTERN_C_END 426 427