1 #include <petsc/private/dmpleximpl.h> /*I "petscdmplex.h" I*/ 2 #include <petscsf.h> 3 4 #include <petsc/private/petscfeimpl.h> 5 #include <petsc/private/petscfvimpl.h> 6 7 #undef __FUNCT__ 8 #define __FUNCT__ "DMPlexGetScale" 9 PetscErrorCode DMPlexGetScale(DM dm, PetscUnit unit, PetscReal *scale) 10 { 11 DM_Plex *mesh = (DM_Plex*) dm->data; 12 13 PetscFunctionBegin; 14 PetscValidHeaderSpecific(dm, DM_CLASSID, 1); 15 PetscValidPointer(scale, 3); 16 *scale = mesh->scale[unit]; 17 PetscFunctionReturn(0); 18 } 19 20 #undef __FUNCT__ 21 #define __FUNCT__ "DMPlexSetScale" 22 PetscErrorCode DMPlexSetScale(DM dm, PetscUnit unit, PetscReal scale) 23 { 24 DM_Plex *mesh = (DM_Plex*) dm->data; 25 26 PetscFunctionBegin; 27 PetscValidHeaderSpecific(dm, DM_CLASSID, 1); 28 mesh->scale[unit] = scale; 29 PetscFunctionReturn(0); 30 } 31 32 PETSC_STATIC_INLINE PetscInt epsilon(PetscInt i, PetscInt j, PetscInt k) 33 { 34 switch (i) { 35 case 0: 36 switch (j) { 37 case 0: return 0; 38 case 1: 39 switch (k) { 40 case 0: return 0; 41 case 1: return 0; 42 case 2: return 1; 43 } 44 case 2: 45 switch (k) { 46 case 0: return 0; 47 case 1: return -1; 48 case 2: return 0; 49 } 50 } 51 case 1: 52 switch (j) { 53 case 0: 54 switch (k) { 55 case 0: return 0; 56 case 1: return 0; 57 case 2: return -1; 58 } 59 case 1: return 0; 60 case 2: 61 switch (k) { 62 case 0: return 1; 63 case 1: return 0; 64 case 2: return 0; 65 } 66 } 67 case 2: 68 switch (j) { 69 case 0: 70 switch (k) { 71 case 0: return 0; 72 case 1: return 1; 73 case 2: return 0; 74 } 75 case 1: 76 switch (k) { 77 case 0: return -1; 78 case 1: return 0; 79 case 2: return 0; 80 } 81 case 2: return 0; 82 } 83 } 84 return 0; 85 } 86 87 #undef __FUNCT__ 88 #define __FUNCT__ "DMPlexProjectRigidBody" 89 static PetscErrorCode DMPlexProjectRigidBody(PetscInt dim, PetscReal t, const PetscReal X[], PetscInt Nf, PetscScalar *mode, void *ctx) 90 { 91 PetscInt *ctxInt = (PetscInt *) ctx; 92 PetscInt dim2 = ctxInt[0]; 93 PetscInt d = ctxInt[1]; 94 PetscInt i, j, k = dim > 2 ? d - dim : d; 95 96 PetscFunctionBegin; 97 if (dim != dim2) SETERRQ2(PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "Input dimension %d does not match context dimension %d", dim, dim2); 98 for (i = 0; i < dim; i++) mode[i] = 0.; 99 if (d < dim) { 100 mode[d] = 1.; 101 } else { 102 for (i = 0; i < dim; i++) { 103 for (j = 0; j < dim; j++) { 104 mode[j] += epsilon(i, j, k)*X[i]; 105 } 106 } 107 } 108 PetscFunctionReturn(0); 109 } 110 111 #undef __FUNCT__ 112 #define __FUNCT__ "DMPlexCreateRigidBody" 113 /*@C 114 DMPlexCreateRigidBody - for the default global section, create rigid body modes from coordinates 115 116 Collective on DM 117 118 Input Arguments: 119 . dm - the DM 120 121 Output Argument: 122 . sp - the null space 123 124 Note: This is necessary to take account of Dirichlet conditions on the displacements 125 126 Level: advanced 127 128 .seealso: MatNullSpaceCreate() 129 @*/ 130 PetscErrorCode DMPlexCreateRigidBody(DM dm, MatNullSpace *sp) 131 { 132 MPI_Comm comm; 133 Vec mode[6]; 134 PetscSection section, globalSection; 135 PetscInt dim, dimEmbed, n, m, d, i, j; 136 PetscErrorCode ierr; 137 138 PetscFunctionBegin; 139 ierr = PetscObjectGetComm((PetscObject)dm,&comm);CHKERRQ(ierr); 140 ierr = DMGetDimension(dm, &dim);CHKERRQ(ierr); 141 ierr = DMGetCoordinateDim(dm, &dimEmbed);CHKERRQ(ierr); 142 if (dim == 1) { 143 ierr = MatNullSpaceCreate(comm, PETSC_TRUE, 0, NULL, sp);CHKERRQ(ierr); 144 PetscFunctionReturn(0); 145 } 146 ierr = DMGetDefaultSection(dm, §ion);CHKERRQ(ierr); 147 ierr = DMGetDefaultGlobalSection(dm, &globalSection);CHKERRQ(ierr); 148 ierr = PetscSectionGetConstrainedStorageSize(globalSection, &n);CHKERRQ(ierr); 149 m = (dim*(dim+1))/2; 150 ierr = VecCreate(comm, &mode[0]);CHKERRQ(ierr); 151 ierr = VecSetSizes(mode[0], n, PETSC_DETERMINE);CHKERRQ(ierr); 152 ierr = VecSetUp(mode[0]);CHKERRQ(ierr); 153 for (i = 1; i < m; ++i) {ierr = VecDuplicate(mode[0], &mode[i]);CHKERRQ(ierr);} 154 for (d = 0; d < m; d++) { 155 PetscInt ctx[2]; 156 void *voidctx = (void *) (&ctx[0]); 157 PetscErrorCode (*func)(PetscInt, PetscReal, const PetscReal *, PetscInt, PetscScalar *, void *) = DMPlexProjectRigidBody; 158 159 ctx[0] = dimEmbed; 160 ctx[1] = d; 161 ierr = DMPlexProjectFunction(dm, 0.0, &func, &voidctx, INSERT_VALUES, mode[d]);CHKERRQ(ierr); 162 } 163 for (i = 0; i < dim; ++i) {ierr = VecNormalize(mode[i], NULL);CHKERRQ(ierr);} 164 /* Orthonormalize system */ 165 for (i = dim; i < m; ++i) { 166 PetscScalar dots[6]; 167 168 ierr = VecMDot(mode[i], i, mode, dots);CHKERRQ(ierr); 169 for (j = 0; j < i; ++j) dots[j] *= -1.0; 170 ierr = VecMAXPY(mode[i], i, dots, mode);CHKERRQ(ierr); 171 ierr = VecNormalize(mode[i], NULL);CHKERRQ(ierr); 172 } 173 ierr = MatNullSpaceCreate(comm, PETSC_FALSE, m, mode, sp);CHKERRQ(ierr); 174 for (i = 0; i< m; ++i) {ierr = VecDestroy(&mode[i]);CHKERRQ(ierr);} 175 PetscFunctionReturn(0); 176 } 177 178 #undef __FUNCT__ 179 #define __FUNCT__ "DMPlexSetMaxProjectionHeight" 180 /*@ 181 DMPlexSetMaxProjectionHeight - In DMPlexProjectXXXLocal() functions, the projected values of a basis function's dofs 182 are computed by associating the basis function with one of the mesh points in its transitively-closed support, and 183 evaluating the dual space basis of that point. A basis function is associated with the point in its 184 transitively-closed support whose mesh height is highest (w.r.t. DAG height), but not greater than the maximum 185 projection height, which is set with this function. By default, the maximum projection height is zero, which means 186 that only mesh cells are used to project basis functions. A height of one, for example, evaluates a cell-interior 187 basis functions using its cells dual space basis, but all other basis functions with the dual space basis of a face. 188 189 Input Parameters: 190 + dm - the DMPlex object 191 - height - the maximum projection height >= 0 192 193 Level: advanced 194 195 .seealso: DMPlexGetMaxProjectionHeight(), DMPlexProjectFunctionLocal(), DMPlexProjectFunctionLabelLocal() 196 @*/ 197 PetscErrorCode DMPlexSetMaxProjectionHeight(DM dm, PetscInt height) 198 { 199 DM_Plex *plex = (DM_Plex *) dm->data; 200 201 PetscFunctionBegin; 202 PetscValidHeaderSpecific(dm, DM_CLASSID, 1); 203 plex->maxProjectionHeight = height; 204 PetscFunctionReturn(0); 205 } 206 207 #undef __FUNCT__ 208 #define __FUNCT__ "DMPlexGetMaxProjectionHeight" 209 /*@ 210 DMPlexGetMaxProjectionHeight - Get the maximum height (w.r.t. DAG) of mesh points used to evaluate dual bases in 211 DMPlexProjectXXXLocal() functions. 212 213 Input Parameters: 214 . dm - the DMPlex object 215 216 Output Parameters: 217 . height - the maximum projection height 218 219 Level: intermediate 220 221 .seealso: DMPlexSetMaxProjectionHeight(), DMPlexProjectFunctionLocal(), DMPlexProjectFunctionLabelLocal() 222 @*/ 223 PetscErrorCode DMPlexGetMaxProjectionHeight(DM dm, PetscInt *height) 224 { 225 DM_Plex *plex = (DM_Plex *) dm->data; 226 227 PetscFunctionBegin; 228 PetscValidHeaderSpecific(dm, DM_CLASSID, 1); 229 *height = plex->maxProjectionHeight; 230 PetscFunctionReturn(0); 231 } 232 233 #undef __FUNCT__ 234 #define __FUNCT__ "DMPlexProjectFunctionLabelLocal" 235 PetscErrorCode DMPlexProjectFunctionLabelLocal(DM dm, PetscReal time, DMLabel label, PetscInt numIds, const PetscInt ids[], PetscErrorCode (**funcs)(PetscInt, PetscReal, const PetscReal [], PetscInt, PetscScalar *, void *), void **ctxs, InsertMode mode, Vec localX) 236 { 237 PetscDualSpace *sp, *cellsp; 238 PetscInt *numComp; 239 PetscSection section; 240 PetscScalar *values; 241 PetscBool *fieldActive; 242 PetscInt numFields, dim, dimEmbed, spDim, totDim = 0, numValues, pStart, pEnd, cStart, cEnd, cEndInterior, f, d, v, i, comp, maxHeight, h; 243 PetscErrorCode ierr; 244 245 PetscFunctionBegin; 246 ierr = DMPlexGetHeightStratum(dm, 0, &cStart, &cEnd);CHKERRQ(ierr); 247 ierr = DMPlexGetHybridBounds(dm, &cEndInterior, NULL, NULL, NULL);CHKERRQ(ierr); 248 cEnd = cEndInterior < 0 ? cEnd : cEndInterior; 249 if (cEnd <= cStart) PetscFunctionReturn(0); 250 ierr = DMGetDimension(dm, &dim);CHKERRQ(ierr); 251 ierr = DMGetCoordinateDim(dm, &dimEmbed);CHKERRQ(ierr); 252 ierr = DMGetDefaultSection(dm, §ion);CHKERRQ(ierr); 253 ierr = PetscSectionGetNumFields(section, &numFields);CHKERRQ(ierr); 254 ierr = PetscMalloc2(numFields,&sp,numFields,&numComp);CHKERRQ(ierr); 255 ierr = DMPlexGetMaxProjectionHeight(dm,&maxHeight);CHKERRQ(ierr); 256 if (maxHeight < 0 || maxHeight > dim) {SETERRQ2(PETSC_COMM_SELF,PETSC_ERR_USER,"maximum projection height %d not in [0, %d)\n", maxHeight,dim);} 257 if (maxHeight > 0) {ierr = PetscMalloc1(numFields,&cellsp);CHKERRQ(ierr);} 258 else {cellsp = sp;} 259 for (h = 0; h <= maxHeight; h++) { 260 ierr = DMPlexGetHeightStratum(dm, h, &pStart, &pEnd);CHKERRQ(ierr); 261 if (!h) {pStart = cStart; pEnd = cEnd;} 262 if (pEnd <= pStart) continue; 263 totDim = 0; 264 for (f = 0; f < numFields; ++f) { 265 PetscObject obj; 266 PetscClassId id; 267 268 ierr = DMGetField(dm, f, &obj);CHKERRQ(ierr); 269 ierr = PetscObjectGetClassId(obj, &id);CHKERRQ(ierr); 270 if (id == PETSCFE_CLASSID) { 271 PetscFE fe = (PetscFE) obj; 272 273 ierr = PetscFEGetNumComponents(fe, &numComp[f]);CHKERRQ(ierr); 274 if (!h) { 275 ierr = PetscFEGetDualSpace(fe, &cellsp[f]);CHKERRQ(ierr); 276 sp[f] = cellsp[f]; 277 ierr = PetscObjectReference((PetscObject) sp[f]);CHKERRQ(ierr); 278 } else { 279 ierr = PetscDualSpaceGetHeightSubspace(cellsp[f], h, &sp[f]);CHKERRQ(ierr); 280 if (!sp[f]) continue; 281 } 282 } else if (id == PETSCFV_CLASSID) { 283 PetscFV fv = (PetscFV) obj; 284 285 ierr = PetscFVGetNumComponents(fv, &numComp[f]);CHKERRQ(ierr); 286 ierr = PetscFVGetDualSpace(fv, &sp[f]);CHKERRQ(ierr); 287 ierr = PetscObjectReference((PetscObject) sp[f]);CHKERRQ(ierr); 288 } else SETERRQ1(PetscObjectComm((PetscObject)dm), PETSC_ERR_ARG_WRONG, "Unknown discretization type for field %d", f); 289 ierr = PetscDualSpaceGetDimension(sp[f], &spDim);CHKERRQ(ierr); 290 totDim += spDim*numComp[f]; 291 } 292 ierr = DMPlexVecGetClosure(dm, section, localX, pStart, &numValues, NULL);CHKERRQ(ierr); 293 if (numValues != totDim) SETERRQ2(PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "The section point closure size %d != dual space dimension %d", numValues, totDim); 294 if (!totDim) continue; 295 ierr = DMGetWorkArray(dm, numValues, PETSC_SCALAR, &values);CHKERRQ(ierr); 296 ierr = DMGetWorkArray(dm, numFields, PETSC_BOOL, &fieldActive);CHKERRQ(ierr); 297 for (f = 0; f < numFields; ++f) fieldActive[f] = (funcs[f] && sp[f]) ? PETSC_TRUE : PETSC_FALSE; 298 for (i = 0; i < numIds; ++i) { 299 IS pointIS; 300 const PetscInt *points; 301 PetscInt n, p; 302 303 ierr = DMLabelGetStratumIS(label, ids[i], &pointIS);CHKERRQ(ierr); 304 ierr = ISGetLocalSize(pointIS, &n);CHKERRQ(ierr); 305 ierr = ISGetIndices(pointIS, &points);CHKERRQ(ierr); 306 for (p = 0; p < n; ++p) { 307 const PetscInt point = points[p]; 308 PetscFECellGeom geom; 309 310 if ((point < pStart) || (point >= pEnd)) continue; 311 ierr = DMPlexComputeCellGeometryFEM(dm, point, NULL, geom.v0, geom.J, NULL, &geom.detJ);CHKERRQ(ierr); 312 geom.dim = dim - h; 313 geom.dimEmbed = dimEmbed; 314 for (f = 0, v = 0; f < numFields; ++f) { 315 void * const ctx = ctxs ? ctxs[f] : NULL; 316 317 if (!sp[f]) continue; 318 ierr = PetscDualSpaceGetDimension(sp[f], &spDim);CHKERRQ(ierr); 319 for (d = 0; d < spDim; ++d) { 320 if (funcs[f]) { 321 ierr = PetscDualSpaceApply(sp[f], d, time, &geom, numComp[f], funcs[f], ctx, &values[v]);CHKERRQ(ierr); 322 } else { 323 for (comp = 0; comp < numComp[f]; ++comp) values[v+comp] = 0.0; 324 } 325 v += numComp[f]; 326 } 327 } 328 ierr = DMPlexVecSetFieldClosure_Internal(dm, section, localX, fieldActive, point, values, mode);CHKERRQ(ierr); 329 } 330 ierr = ISRestoreIndices(pointIS, &points);CHKERRQ(ierr); 331 ierr = ISDestroy(&pointIS);CHKERRQ(ierr); 332 } 333 if (h) { 334 for (f = 0; f < numFields; ++f) {ierr = PetscDualSpaceDestroy(&sp[f]);CHKERRQ(ierr);} 335 } 336 } 337 ierr = DMRestoreWorkArray(dm, numValues, PETSC_SCALAR, &values);CHKERRQ(ierr); 338 ierr = DMRestoreWorkArray(dm, numFields, PETSC_BOOL, &fieldActive);CHKERRQ(ierr); 339 for (f = 0; f < numFields; ++f) {ierr = PetscDualSpaceDestroy(&sp[f]);CHKERRQ(ierr);} 340 ierr = PetscFree2(sp, numComp);CHKERRQ(ierr); 341 if (maxHeight > 0) { 342 ierr = PetscFree(cellsp);CHKERRQ(ierr); 343 } 344 PetscFunctionReturn(0); 345 } 346 347 #undef __FUNCT__ 348 #define __FUNCT__ "DMPlexProjectFunctionLocal" 349 PetscErrorCode DMPlexProjectFunctionLocal(DM dm, PetscReal time, PetscErrorCode (**funcs)(PetscInt, PetscReal, const PetscReal [], PetscInt, PetscScalar *, void *), void **ctxs, InsertMode mode, Vec localX) 350 { 351 PetscDualSpace *sp, *cellsp; 352 PetscInt *numComp; 353 PetscSection section; 354 PetscScalar *values; 355 PetscInt Nf, dim, dimEmbed, spDim, totDim = 0, numValues, pStart, pEnd, p, cStart, cEnd, cEndInterior, f, d, v, comp, h, maxHeight; 356 PetscErrorCode ierr; 357 358 PetscFunctionBegin; 359 ierr = DMPlexGetHeightStratum(dm, 0, &cStart, &cEnd);CHKERRQ(ierr); 360 ierr = DMPlexGetHybridBounds(dm, &cEndInterior, NULL, NULL, NULL);CHKERRQ(ierr); 361 cEnd = cEndInterior < 0 ? cEnd : cEndInterior; 362 if (cEnd <= cStart) PetscFunctionReturn(0); 363 ierr = DMGetDefaultSection(dm, §ion);CHKERRQ(ierr); 364 ierr = PetscSectionGetNumFields(section, &Nf);CHKERRQ(ierr); 365 ierr = PetscMalloc2(Nf, &sp, Nf, &numComp);CHKERRQ(ierr); 366 ierr = DMGetDimension(dm, &dim);CHKERRQ(ierr); 367 ierr = DMGetCoordinateDim(dm, &dimEmbed);CHKERRQ(ierr); 368 ierr = DMPlexGetMaxProjectionHeight(dm,&maxHeight);CHKERRQ(ierr); 369 if (maxHeight < 0 || maxHeight > dim) {SETERRQ2(PETSC_COMM_SELF,PETSC_ERR_USER,"maximum projection height %d not in [0, %d)\n", maxHeight,dim);} 370 if (maxHeight > 0) { 371 ierr = PetscMalloc1(Nf,&cellsp);CHKERRQ(ierr); 372 } 373 else { 374 cellsp = sp; 375 } 376 for (h = 0; h <= maxHeight; h++) { 377 ierr = DMPlexGetHeightStratum(dm, h, &pStart, &pEnd);CHKERRQ(ierr); 378 if (!h) {pStart = cStart; pEnd = cEnd;} 379 if (pEnd <= pStart) continue; 380 totDim = 0; 381 for (f = 0; f < Nf; ++f) { 382 PetscObject obj; 383 PetscClassId id; 384 385 ierr = DMGetField(dm, f, &obj);CHKERRQ(ierr); 386 ierr = PetscObjectGetClassId(obj, &id);CHKERRQ(ierr); 387 if (id == PETSCFE_CLASSID) { 388 PetscFE fe = (PetscFE) obj; 389 390 ierr = PetscFEGetNumComponents(fe, &numComp[f]);CHKERRQ(ierr); 391 if (!h) { 392 ierr = PetscFEGetDualSpace(fe, &cellsp[f]);CHKERRQ(ierr); 393 sp[f] = cellsp[f]; 394 ierr = PetscObjectReference((PetscObject) sp[f]);CHKERRQ(ierr); 395 } 396 else { 397 ierr = PetscDualSpaceGetHeightSubspace(cellsp[f], h, &sp[f]);CHKERRQ(ierr); 398 if (!sp[f]) { 399 continue; 400 } 401 } 402 } else if (id == PETSCFV_CLASSID) { 403 PetscFV fv = (PetscFV) obj; 404 405 if (!h) { 406 ierr = PetscFVGetNumComponents(fv, &numComp[f]);CHKERRQ(ierr); 407 ierr = PetscFVGetDualSpace(fv, &cellsp[f]);CHKERRQ(ierr); 408 ierr = PetscObjectReference((PetscObject) cellsp[f]);CHKERRQ(ierr); 409 sp[f] = cellsp[f]; 410 } 411 else { 412 sp[f] = NULL; 413 continue; /* FV doesn't have fields that can be evaluated at faces, corners, etc. */ 414 } 415 } else SETERRQ1(PetscObjectComm((PetscObject)dm), PETSC_ERR_ARG_WRONG, "Unknown discretization type for field %d", f); 416 ierr = PetscDualSpaceGetDimension(sp[f], &spDim);CHKERRQ(ierr); 417 totDim += spDim*numComp[f]; 418 } 419 ierr = DMPlexVecGetClosure(dm, section, localX, pStart, &numValues, NULL);CHKERRQ(ierr); 420 if (numValues != totDim) SETERRQ2(PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "The section point closure size %d != dual space dimension %d", numValues, totDim); 421 if (!totDim) continue; 422 ierr = DMGetWorkArray(dm, numValues, PETSC_SCALAR, &values);CHKERRQ(ierr); 423 for (p = pStart; p < pEnd; ++p) { 424 PetscFECellGeom geom; 425 426 ierr = DMPlexComputeCellGeometryFEM(dm, p, NULL, geom.v0, geom.J, NULL, &geom.detJ);CHKERRQ(ierr); 427 geom.dim = dim - h; 428 geom.dimEmbed = dimEmbed; 429 for (f = 0, v = 0; f < Nf; ++f) { 430 void * const ctx = ctxs ? ctxs[f] : NULL; 431 432 if (!sp[f]) continue; 433 ierr = PetscDualSpaceGetDimension(sp[f], &spDim);CHKERRQ(ierr); 434 for (d = 0; d < spDim; ++d) { 435 if (funcs[f]) { 436 ierr = PetscDualSpaceApply(sp[f], d, time, &geom, numComp[f], funcs[f], ctx, &values[v]);CHKERRQ(ierr); 437 } else { 438 for (comp = 0; comp < numComp[f]; ++comp) values[v+comp] = 0.0; 439 } 440 v += numComp[f]; 441 } 442 } 443 ierr = DMPlexVecSetClosure(dm, section, localX, p, values, mode);CHKERRQ(ierr); 444 } 445 ierr = DMRestoreWorkArray(dm, numValues, PETSC_SCALAR, &values);CHKERRQ(ierr); 446 if (h || !maxHeight) { 447 for (f = 0; f < Nf; f++) {ierr = PetscDualSpaceDestroy(&sp[f]);CHKERRQ(ierr);} 448 } 449 } 450 ierr = PetscFree2(sp, numComp);CHKERRQ(ierr); 451 if (maxHeight > 0) { 452 for (f = 0; f < Nf; f++) {ierr = PetscDualSpaceDestroy(&cellsp[f]);CHKERRQ(ierr);} 453 ierr = PetscFree(cellsp);CHKERRQ(ierr); 454 } 455 PetscFunctionReturn(0); 456 } 457 458 #undef __FUNCT__ 459 #define __FUNCT__ "DMPlexProjectFunction" 460 /*@C 461 DMPlexProjectFunction - This projects the given function into the function space provided. 462 463 Input Parameters: 464 + dm - The DM 465 . funcs - The coordinate functions to evaluate, one per field 466 . ctxs - Optional array of contexts to pass to each coordinate function. ctxs itself may be null. 467 - mode - The insertion mode for values 468 469 Output Parameter: 470 . X - vector 471 472 Calling sequence of func: 473 $ func(PetscInt dim, const PetscReal x[], PetscInt Nf, PetscScalar u[], void *ctx); 474 475 + dim - The spatial dimension 476 . x - The coordinates 477 . Nf - The number of fields 478 . u - The output field values 479 - ctx - optional user-defined function context 480 481 Level: developer 482 483 .seealso: DMPlexComputeL2Diff() 484 @*/ 485 PetscErrorCode DMPlexProjectFunction(DM dm, PetscReal time, PetscErrorCode (**funcs)(PetscInt, PetscReal, const PetscReal [], PetscInt, PetscScalar *, void *), void **ctxs, InsertMode mode, Vec X) 486 { 487 Vec localX; 488 PetscErrorCode ierr; 489 490 PetscFunctionBegin; 491 PetscValidHeaderSpecific(dm, DM_CLASSID, 1); 492 ierr = DMGetLocalVector(dm, &localX);CHKERRQ(ierr); 493 ierr = DMPlexProjectFunctionLocal(dm, time, funcs, ctxs, mode, localX);CHKERRQ(ierr); 494 ierr = DMLocalToGlobalBegin(dm, localX, mode, X);CHKERRQ(ierr); 495 ierr = DMLocalToGlobalEnd(dm, localX, mode, X);CHKERRQ(ierr); 496 ierr = DMRestoreLocalVector(dm, &localX);CHKERRQ(ierr); 497 PetscFunctionReturn(0); 498 } 499 500 #undef __FUNCT__ 501 #define __FUNCT__ "DMPlexProjectFieldLocal" 502 PetscErrorCode DMPlexProjectFieldLocal(DM dm, Vec localU, void (**funcs)(const PetscScalar[], const PetscScalar[], const PetscScalar[], const PetscScalar[], const PetscScalar[], const PetscScalar[], const PetscReal [], PetscScalar []), InsertMode mode, Vec localX) 503 { 504 DM dmAux; 505 PetscDS prob, probAux = NULL; 506 Vec A; 507 PetscSection section, sectionAux = NULL; 508 PetscDualSpace *sp; 509 PetscInt *Ncf; 510 PetscScalar *values, *u, *u_x, *a, *a_x; 511 PetscReal *x, *v0, *J, *invJ, detJ; 512 PetscInt Nf, dim, spDim, totDim, numValues, cStart, cEnd, cEndInterior, c, f, d, v, comp, maxHeight; 513 PetscErrorCode ierr; 514 515 PetscFunctionBegin; 516 ierr = DMPlexGetMaxProjectionHeight(dm,&maxHeight);CHKERRQ(ierr); 517 if (maxHeight > 0) {SETERRQ(PETSC_COMM_SELF,PETSC_ERR_SUP,"Field projection for height > 0 not supported yet");} 518 ierr = DMGetDS(dm, &prob);CHKERRQ(ierr); 519 ierr = DMGetDimension(dm, &dim);CHKERRQ(ierr); 520 ierr = DMGetDefaultSection(dm, §ion);CHKERRQ(ierr); 521 ierr = PetscSectionGetNumFields(section, &Nf);CHKERRQ(ierr); 522 ierr = PetscMalloc2(Nf, &sp, Nf, &Ncf);CHKERRQ(ierr); 523 ierr = DMPlexGetHeightStratum(dm, 0, &cStart, &cEnd);CHKERRQ(ierr); 524 ierr = PetscDSGetTotalDimension(prob, &totDim);CHKERRQ(ierr); 525 ierr = PetscDSGetEvaluationArrays(prob, &u, NULL, &u_x);CHKERRQ(ierr); 526 ierr = PetscDSGetRefCoordArrays(prob, &x, NULL);CHKERRQ(ierr); 527 ierr = PetscObjectQuery((PetscObject) dm, "dmAux", (PetscObject *) &dmAux);CHKERRQ(ierr); 528 ierr = PetscObjectQuery((PetscObject) dm, "A", (PetscObject *) &A);CHKERRQ(ierr); 529 if (dmAux) { 530 ierr = DMGetDS(dmAux, &probAux);CHKERRQ(ierr); 531 ierr = DMGetDefaultSection(dmAux, §ionAux);CHKERRQ(ierr); 532 ierr = PetscDSGetEvaluationArrays(probAux, &a, NULL, &a_x);CHKERRQ(ierr); 533 } 534 ierr = DMPlexInsertBoundaryValues(dm, localU, 0.0, NULL, NULL, NULL);CHKERRQ(ierr); 535 ierr = DMPlexVecGetClosure(dm, section, localX, cStart, &numValues, NULL);CHKERRQ(ierr); 536 if (numValues != totDim) SETERRQ2(PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "The section cell closure size %d != dual space dimension %d", numValues, totDim); 537 ierr = DMGetWorkArray(dm, numValues, PETSC_SCALAR, &values);CHKERRQ(ierr); 538 ierr = PetscMalloc3(dim,&v0,dim*dim,&J,dim*dim,&invJ);CHKERRQ(ierr); 539 ierr = DMPlexGetHybridBounds(dm, &cEndInterior, NULL, NULL, NULL);CHKERRQ(ierr); 540 cEnd = cEndInterior < 0 ? cEnd : cEndInterior; 541 for (c = cStart; c < cEnd; ++c) { 542 PetscScalar *coefficients = NULL, *coefficientsAux = NULL; 543 544 ierr = DMPlexComputeCellGeometryFEM(dm, c, NULL, v0, J, invJ, &detJ);CHKERRQ(ierr); 545 ierr = DMPlexVecGetClosure(dm, section, localU, c, NULL, &coefficients);CHKERRQ(ierr); 546 if (dmAux) {ierr = DMPlexVecGetClosure(dmAux, sectionAux, A, c, NULL, &coefficientsAux);CHKERRQ(ierr);} 547 for (f = 0, v = 0; f < Nf; ++f) { 548 PetscObject obj; 549 PetscClassId id; 550 551 ierr = PetscDSGetDiscretization(prob, f, &obj);CHKERRQ(ierr); 552 ierr = PetscObjectGetClassId(obj, &id);CHKERRQ(ierr); 553 if (id == PETSCFE_CLASSID) { 554 PetscFE fe = (PetscFE) obj; 555 556 ierr = PetscFEGetDualSpace(fe, &sp[f]);CHKERRQ(ierr); 557 ierr = PetscObjectReference((PetscObject) sp[f]);CHKERRQ(ierr); 558 ierr = PetscFEGetNumComponents(fe, &Ncf[f]);CHKERRQ(ierr); 559 } else if (id == PETSCFV_CLASSID) { 560 PetscFV fv = (PetscFV) obj; 561 562 ierr = PetscFVGetNumComponents(fv, &Ncf[f]);CHKERRQ(ierr); 563 ierr = PetscFVGetDualSpace(fv, &sp[f]);CHKERRQ(ierr); 564 ierr = PetscObjectReference((PetscObject) sp[f]);CHKERRQ(ierr); 565 } 566 ierr = PetscDualSpaceGetDimension(sp[f], &spDim);CHKERRQ(ierr); 567 for (d = 0; d < spDim; ++d) { 568 PetscQuadrature quad; 569 const PetscReal *points, *weights; 570 PetscInt numPoints, q; 571 572 if (funcs[f]) { 573 ierr = PetscDualSpaceGetFunctional(sp[f], d, &quad);CHKERRQ(ierr); 574 ierr = PetscQuadratureGetData(quad, NULL, &numPoints, &points, &weights);CHKERRQ(ierr); 575 for (q = 0; q < numPoints; ++q) { 576 CoordinatesRefToReal(dim, dim, v0, J, &points[q*dim], x); 577 ierr = EvaluateFieldJets(prob, PETSC_FALSE, q, invJ, coefficients, NULL, u, u_x, NULL);CHKERRQ(ierr); 578 ierr = EvaluateFieldJets(probAux, PETSC_FALSE, q, invJ, coefficientsAux, NULL, a, a_x, NULL);CHKERRQ(ierr); 579 (*funcs[f])(u, NULL, u_x, a, NULL, a_x, x, &values[v]); 580 } 581 } else { 582 for (comp = 0; comp < Ncf[f]; ++comp) values[v+comp] = 0.0; 583 } 584 v += Ncf[f]; 585 } 586 } 587 ierr = DMPlexVecRestoreClosure(dm, section, localU, c, NULL, &coefficients);CHKERRQ(ierr); 588 if (dmAux) {ierr = DMPlexVecRestoreClosure(dmAux, sectionAux, A, c, NULL, &coefficientsAux);CHKERRQ(ierr);} 589 ierr = DMPlexVecSetClosure(dm, section, localX, c, values, mode);CHKERRQ(ierr); 590 } 591 ierr = DMRestoreWorkArray(dm, numValues, PETSC_SCALAR, &values);CHKERRQ(ierr); 592 ierr = PetscFree3(v0,J,invJ);CHKERRQ(ierr); 593 for (f = 0; f < Nf; f++) {ierr = PetscDualSpaceDestroy(&sp[f]);CHKERRQ(ierr);} 594 ierr = PetscFree2(sp, Ncf);CHKERRQ(ierr); 595 PetscFunctionReturn(0); 596 } 597 598 #undef __FUNCT__ 599 #define __FUNCT__ "DMPlexInsertBoundaryValues_FEM_Internal" 600 static PetscErrorCode DMPlexInsertBoundaryValues_FEM_Internal(DM dm, PetscReal time, PetscInt field, DMLabel label, PetscInt numids, const PetscInt ids[], PetscErrorCode (*func)(PetscInt, PetscReal, const PetscReal[], PetscInt, PetscScalar *, void *), void *ctx, Vec locX) 601 { 602 PetscErrorCode (**funcs)(PetscInt, PetscReal, const PetscReal x[], PetscInt, PetscScalar *u, void *ctx); 603 void **ctxs; 604 PetscInt numFields; 605 PetscErrorCode ierr; 606 607 PetscFunctionBegin; 608 ierr = DMGetNumFields(dm, &numFields);CHKERRQ(ierr); 609 ierr = PetscCalloc2(numFields,&funcs,numFields,&ctxs);CHKERRQ(ierr); 610 funcs[field] = func; 611 ctxs[field] = ctx; 612 ierr = DMPlexProjectFunctionLabelLocal(dm, time, label, numids, ids, funcs, ctxs, INSERT_BC_VALUES, locX);CHKERRQ(ierr); 613 ierr = PetscFree2(funcs,ctxs);CHKERRQ(ierr); 614 PetscFunctionReturn(0); 615 } 616 617 #undef __FUNCT__ 618 #define __FUNCT__ "DMPlexInsertBoundaryValues_FVM_Internal" 619 /* This ignores numcomps/comps */ 620 static PetscErrorCode DMPlexInsertBoundaryValues_FVM_Internal(DM dm, PetscReal time, Vec faceGeometry, Vec cellGeometry, Vec Grad, 621 PetscInt field, DMLabel label, PetscInt numids, const PetscInt ids[], PetscErrorCode (*func)(PetscReal,const PetscReal*,const PetscReal*,const PetscScalar*,PetscScalar*,void*), void *ctx, Vec locX) 622 { 623 PetscDS prob; 624 PetscSF sf; 625 DM dmFace, dmCell, dmGrad; 626 const PetscScalar *facegeom, *cellgeom, *grad; 627 const PetscInt *leaves; 628 PetscScalar *x, *fx; 629 PetscInt dim, nleaves, loc, fStart, fEnd, pdim, i; 630 PetscErrorCode ierr; 631 632 PetscFunctionBegin; 633 ierr = DMGetPointSF(dm, &sf);CHKERRQ(ierr); 634 ierr = PetscSFGetGraph(sf, NULL, &nleaves, &leaves, NULL);CHKERRQ(ierr); 635 nleaves = PetscMax(0, nleaves); 636 ierr = DMGetDimension(dm, &dim);CHKERRQ(ierr); 637 ierr = DMPlexGetHeightStratum(dm, 1, &fStart, &fEnd);CHKERRQ(ierr); 638 ierr = DMGetDS(dm, &prob);CHKERRQ(ierr); 639 ierr = VecGetDM(faceGeometry, &dmFace);CHKERRQ(ierr); 640 ierr = VecGetArrayRead(faceGeometry, &facegeom);CHKERRQ(ierr); 641 ierr = VecGetDM(cellGeometry, &dmCell);CHKERRQ(ierr); 642 ierr = VecGetArrayRead(cellGeometry, &cellgeom);CHKERRQ(ierr); 643 if (Grad) { 644 PetscFV fv; 645 646 ierr = PetscDSGetDiscretization(prob, field, (PetscObject *) &fv);CHKERRQ(ierr); 647 ierr = VecGetDM(Grad, &dmGrad);CHKERRQ(ierr); 648 ierr = VecGetArrayRead(Grad, &grad);CHKERRQ(ierr); 649 ierr = PetscFVGetNumComponents(fv, &pdim);CHKERRQ(ierr); 650 ierr = DMGetWorkArray(dm, pdim, PETSC_SCALAR, &fx);CHKERRQ(ierr); 651 } 652 ierr = VecGetArray(locX, &x);CHKERRQ(ierr); 653 for (i = 0; i < numids; ++i) { 654 IS faceIS; 655 const PetscInt *faces; 656 PetscInt numFaces, f; 657 658 ierr = DMLabelGetStratumIS(label, ids[i], &faceIS);CHKERRQ(ierr); 659 if (!faceIS) continue; /* No points with that id on this process */ 660 ierr = ISGetLocalSize(faceIS, &numFaces);CHKERRQ(ierr); 661 ierr = ISGetIndices(faceIS, &faces);CHKERRQ(ierr); 662 for (f = 0; f < numFaces; ++f) { 663 const PetscInt face = faces[f], *cells; 664 const PetscFVFaceGeom *fg; 665 666 if ((face < fStart) || (face >= fEnd)) continue; /* Refinement adds non-faces to labels */ 667 ierr = PetscFindInt(face, nleaves, (PetscInt *) leaves, &loc);CHKERRQ(ierr); 668 if (loc >= 0) continue; 669 ierr = DMPlexPointLocalRead(dmFace, face, facegeom, &fg);CHKERRQ(ierr); 670 ierr = DMPlexGetSupport(dm, face, &cells);CHKERRQ(ierr); 671 if (Grad) { 672 const PetscFVCellGeom *cg; 673 const PetscScalar *cx, *cgrad; 674 PetscScalar *xG; 675 PetscReal dx[3]; 676 PetscInt d; 677 678 ierr = DMPlexPointLocalRead(dmCell, cells[0], cellgeom, &cg);CHKERRQ(ierr); 679 ierr = DMPlexPointLocalRead(dm, cells[0], x, &cx);CHKERRQ(ierr); 680 ierr = DMPlexPointLocalRead(dmGrad, cells[0], grad, &cgrad);CHKERRQ(ierr); 681 ierr = DMPlexPointLocalFieldRef(dm, cells[1], field, x, &xG);CHKERRQ(ierr); 682 DMPlex_WaxpyD_Internal(dim, -1, cg->centroid, fg->centroid, dx); 683 for (d = 0; d < pdim; ++d) fx[d] = cx[d] + DMPlex_DotD_Internal(dim, &cgrad[d*dim], dx); 684 ierr = (*func)(time, fg->centroid, fg->normal, fx, xG, ctx);CHKERRQ(ierr); 685 } else { 686 const PetscScalar *xI; 687 PetscScalar *xG; 688 689 ierr = DMPlexPointLocalRead(dm, cells[0], x, &xI);CHKERRQ(ierr); 690 ierr = DMPlexPointLocalFieldRef(dm, cells[1], field, x, &xG);CHKERRQ(ierr); 691 ierr = (*func)(time, fg->centroid, fg->normal, xI, xG, ctx);CHKERRQ(ierr); 692 } 693 } 694 ierr = ISRestoreIndices(faceIS, &faces);CHKERRQ(ierr); 695 ierr = ISDestroy(&faceIS);CHKERRQ(ierr); 696 } 697 ierr = VecRestoreArray(locX, &x);CHKERRQ(ierr); 698 if (Grad) { 699 ierr = DMRestoreWorkArray(dm, pdim, PETSC_SCALAR, &fx);CHKERRQ(ierr); 700 ierr = VecRestoreArrayRead(Grad, &grad);CHKERRQ(ierr); 701 } 702 ierr = VecRestoreArrayRead(cellGeometry, &cellgeom);CHKERRQ(ierr); 703 ierr = VecRestoreArrayRead(faceGeometry, &facegeom);CHKERRQ(ierr); 704 PetscFunctionReturn(0); 705 } 706 707 #undef __FUNCT__ 708 #define __FUNCT__ "DMPlexInsertBoundaryValues" 709 PetscErrorCode DMPlexInsertBoundaryValues(DM dm, Vec locX, PetscReal time, Vec faceGeomFVM, Vec cellGeomFVM, Vec gradFVM) 710 { 711 PetscInt numBd, b; 712 PetscErrorCode ierr; 713 714 PetscFunctionBegin; 715 PetscValidHeaderSpecific(dm, DM_CLASSID, 1); 716 PetscValidHeaderSpecific(locX, VEC_CLASSID, 2); 717 if (faceGeomFVM) {PetscValidHeaderSpecific(faceGeomFVM, VEC_CLASSID, 4);} 718 if (cellGeomFVM) {PetscValidHeaderSpecific(cellGeomFVM, VEC_CLASSID, 5);} 719 if (gradFVM) {PetscValidHeaderSpecific(gradFVM, VEC_CLASSID, 6);} 720 ierr = DMPlexGetNumBoundary(dm, &numBd);CHKERRQ(ierr); 721 for (b = 0; b < numBd; ++b) { 722 PetscBool isEssential; 723 const char *labelname; 724 DMLabel label; 725 PetscInt field; 726 PetscObject obj; 727 PetscClassId id; 728 void (*func)(); 729 PetscInt numids; 730 const PetscInt *ids; 731 void *ctx; 732 733 ierr = DMPlexGetBoundary(dm, b, &isEssential, NULL, &labelname, &field, NULL, NULL, &func, &numids, &ids, &ctx);CHKERRQ(ierr); 734 if (!isEssential) continue; 735 ierr = DMGetLabel(dm, labelname, &label);CHKERRQ(ierr); 736 ierr = DMGetField(dm, field, &obj);CHKERRQ(ierr); 737 ierr = PetscObjectGetClassId(obj, &id);CHKERRQ(ierr); 738 if (id == PETSCFE_CLASSID) { 739 ierr = DMPlexInsertBoundaryValues_FEM_Internal(dm, time, field, label, numids, ids, (PetscErrorCode (*)(PetscInt, PetscReal, const PetscReal[], PetscInt, PetscScalar *, void *)) func, ctx, locX);CHKERRQ(ierr); 740 } else if (id == PETSCFV_CLASSID) { 741 if (!faceGeomFVM) continue; 742 ierr = DMPlexInsertBoundaryValues_FVM_Internal(dm, time, faceGeomFVM, cellGeomFVM, gradFVM, 743 field, label, numids, ids, (PetscErrorCode (*)(PetscReal,const PetscReal*,const PetscReal*,const PetscScalar*,PetscScalar*,void*)) func, ctx, locX);CHKERRQ(ierr); 744 } else SETERRQ1(PetscObjectComm((PetscObject)dm), PETSC_ERR_ARG_WRONG, "Unknown discretization type for field %d", field); 745 } 746 PetscFunctionReturn(0); 747 } 748 749 #undef __FUNCT__ 750 #define __FUNCT__ "DMPlexComputeL2Diff" 751 /*@C 752 DMPlexComputeL2Diff - This function computes the L_2 difference between a function u and an FEM interpolant solution u_h. 753 754 Input Parameters: 755 + dm - The DM 756 . time - The time 757 . funcs - The functions to evaluate for each field component 758 . ctxs - Optional array of contexts to pass to each function, or NULL. 759 - X - The coefficient vector u_h 760 761 Output Parameter: 762 . diff - The diff ||u - u_h||_2 763 764 Level: developer 765 766 .seealso: DMPlexProjectFunction(), DMPlexComputeL2FieldDiff(), DMPlexComputeL2GradientDiff() 767 @*/ 768 PetscErrorCode DMPlexComputeL2Diff(DM dm, PetscReal time, PetscErrorCode (**funcs)(PetscInt, PetscReal, const PetscReal [], PetscInt, PetscScalar *, void *), void **ctxs, Vec X, PetscReal *diff) 769 { 770 const PetscInt debug = 0; 771 PetscSection section; 772 PetscQuadrature quad; 773 Vec localX; 774 PetscScalar *funcVal, *interpolant; 775 PetscReal *coords, *v0, *J, *invJ, detJ; 776 PetscReal localDiff = 0.0; 777 const PetscReal *quadPoints, *quadWeights; 778 PetscInt dim, numFields, numComponents = 0, numQuadPoints, cStart, cEnd, cEndInterior, c, field, fieldOffset; 779 PetscErrorCode ierr; 780 781 PetscFunctionBegin; 782 ierr = DMGetDimension(dm, &dim);CHKERRQ(ierr); 783 ierr = DMGetDefaultSection(dm, §ion);CHKERRQ(ierr); 784 ierr = PetscSectionGetNumFields(section, &numFields);CHKERRQ(ierr); 785 ierr = DMGetLocalVector(dm, &localX);CHKERRQ(ierr); 786 ierr = DMGlobalToLocalBegin(dm, X, INSERT_VALUES, localX);CHKERRQ(ierr); 787 ierr = DMGlobalToLocalEnd(dm, X, INSERT_VALUES, localX);CHKERRQ(ierr); 788 for (field = 0; field < numFields; ++field) { 789 PetscObject obj; 790 PetscClassId id; 791 PetscInt Nc; 792 793 ierr = DMGetField(dm, field, &obj);CHKERRQ(ierr); 794 ierr = PetscObjectGetClassId(obj, &id);CHKERRQ(ierr); 795 if (id == PETSCFE_CLASSID) { 796 PetscFE fe = (PetscFE) obj; 797 798 ierr = PetscFEGetQuadrature(fe, &quad);CHKERRQ(ierr); 799 ierr = PetscFEGetNumComponents(fe, &Nc);CHKERRQ(ierr); 800 } else if (id == PETSCFV_CLASSID) { 801 PetscFV fv = (PetscFV) obj; 802 803 ierr = PetscFVGetQuadrature(fv, &quad);CHKERRQ(ierr); 804 ierr = PetscFVGetNumComponents(fv, &Nc);CHKERRQ(ierr); 805 } else SETERRQ1(PetscObjectComm((PetscObject)dm), PETSC_ERR_ARG_WRONG, "Unknown discretization type for field %d", field); 806 numComponents += Nc; 807 } 808 ierr = PetscQuadratureGetData(quad, NULL, &numQuadPoints, &quadPoints, &quadWeights);CHKERRQ(ierr); 809 ierr = DMPlexProjectFunctionLocal(dm, 0.0, funcs, ctxs, INSERT_BC_VALUES, localX);CHKERRQ(ierr); 810 ierr = PetscMalloc6(numComponents,&funcVal,numComponents,&interpolant,dim,&coords,dim,&v0,dim*dim,&J,dim*dim,&invJ);CHKERRQ(ierr); 811 ierr = DMPlexGetHeightStratum(dm, 0, &cStart, &cEnd);CHKERRQ(ierr); 812 ierr = DMPlexGetHybridBounds(dm, &cEndInterior, NULL, NULL, NULL);CHKERRQ(ierr); 813 cEnd = cEndInterior < 0 ? cEnd : cEndInterior; 814 for (c = cStart; c < cEnd; ++c) { 815 PetscScalar *x = NULL; 816 PetscReal elemDiff = 0.0; 817 818 ierr = DMPlexComputeCellGeometryFEM(dm, c, NULL, v0, J, invJ, &detJ);CHKERRQ(ierr); 819 if (detJ <= 0.0) SETERRQ2(PETSC_COMM_SELF, PETSC_ERR_ARG_OUTOFRANGE, "Invalid determinant %g for element %d", detJ, c); 820 ierr = DMPlexVecGetClosure(dm, NULL, localX, c, NULL, &x);CHKERRQ(ierr); 821 822 for (field = 0, fieldOffset = 0; field < numFields; ++field) { 823 PetscObject obj; 824 PetscClassId id; 825 void * const ctx = ctxs ? ctxs[field] : NULL; 826 PetscInt Nb, Nc, q, fc; 827 828 ierr = DMGetField(dm, field, &obj);CHKERRQ(ierr); 829 ierr = PetscObjectGetClassId(obj, &id);CHKERRQ(ierr); 830 if (id == PETSCFE_CLASSID) {ierr = PetscFEGetNumComponents((PetscFE) obj, &Nc);CHKERRQ(ierr);ierr = PetscFEGetDimension((PetscFE) obj, &Nb);CHKERRQ(ierr);} 831 else if (id == PETSCFV_CLASSID) {ierr = PetscFVGetNumComponents((PetscFV) obj, &Nc);CHKERRQ(ierr);Nb = 1;} 832 else SETERRQ1(PetscObjectComm((PetscObject)dm), PETSC_ERR_ARG_WRONG, "Unknown discretization type for field %d", field); 833 if (debug) { 834 char title[1024]; 835 ierr = PetscSNPrintf(title, 1023, "Solution for Field %d", field);CHKERRQ(ierr); 836 ierr = DMPrintCellVector(c, title, Nb*Nc, &x[fieldOffset]);CHKERRQ(ierr); 837 } 838 for (q = 0; q < numQuadPoints; ++q) { 839 CoordinatesRefToReal(dim, dim, v0, J, &quadPoints[q*dim], coords); 840 ierr = (*funcs[field])(dim, time, coords, Nc, funcVal, ctx);CHKERRQ(ierr); 841 if (id == PETSCFE_CLASSID) {ierr = PetscFEInterpolate_Static((PetscFE) obj, &x[fieldOffset], q, interpolant);CHKERRQ(ierr);} 842 else if (id == PETSCFV_CLASSID) {ierr = PetscFVInterpolate_Static((PetscFV) obj, &x[fieldOffset], q, interpolant);CHKERRQ(ierr);} 843 else SETERRQ1(PetscObjectComm((PetscObject)dm), PETSC_ERR_ARG_WRONG, "Unknown discretization type for field %d", field); 844 for (fc = 0; fc < Nc; ++fc) { 845 if (debug) {ierr = PetscPrintf(PETSC_COMM_SELF, " elem %d field %d diff %g\n", c, field, PetscSqr(PetscRealPart(interpolant[fc] - funcVal[fc]))*quadWeights[q]*detJ);CHKERRQ(ierr);} 846 elemDiff += PetscSqr(PetscRealPart(interpolant[fc] - funcVal[fc]))*quadWeights[q]*detJ; 847 } 848 } 849 fieldOffset += Nb*Nc; 850 } 851 ierr = DMPlexVecRestoreClosure(dm, NULL, localX, c, NULL, &x);CHKERRQ(ierr); 852 if (debug) {ierr = PetscPrintf(PETSC_COMM_SELF, " elem %d diff %g\n", c, elemDiff);CHKERRQ(ierr);} 853 localDiff += elemDiff; 854 } 855 ierr = PetscFree6(funcVal,interpolant,coords,v0,J,invJ);CHKERRQ(ierr); 856 ierr = DMRestoreLocalVector(dm, &localX);CHKERRQ(ierr); 857 ierr = MPIU_Allreduce(&localDiff, diff, 1, MPIU_REAL, MPIU_SUM, PetscObjectComm((PetscObject)dm));CHKERRQ(ierr); 858 *diff = PetscSqrtReal(*diff); 859 PetscFunctionReturn(0); 860 } 861 862 #undef __FUNCT__ 863 #define __FUNCT__ "DMPlexComputeL2GradientDiff" 864 /*@C 865 DMPlexComputeL2GradientDiff - This function computes the L_2 difference between the gradient of a function u and an FEM interpolant solution grad u_h. 866 867 Input Parameters: 868 + dm - The DM 869 , time - The time 870 . funcs - The gradient functions to evaluate for each field component 871 . ctxs - Optional array of contexts to pass to each function, or NULL. 872 . X - The coefficient vector u_h 873 - n - The vector to project along 874 875 Output Parameter: 876 . diff - The diff ||(grad u - grad u_h) . n||_2 877 878 Level: developer 879 880 .seealso: DMPlexProjectFunction(), DMPlexComputeL2Diff() 881 @*/ 882 PetscErrorCode DMPlexComputeL2GradientDiff(DM dm, PetscReal time, PetscErrorCode (**funcs)(PetscInt, PetscReal, const PetscReal [], const PetscReal [], PetscInt, PetscScalar *, void *), void **ctxs, Vec X, const PetscReal n[], PetscReal *diff) 883 { 884 const PetscInt debug = 0; 885 PetscSection section; 886 PetscQuadrature quad; 887 Vec localX; 888 PetscScalar *funcVal, *interpolantVec; 889 PetscReal *coords, *realSpaceDer, *v0, *J, *invJ, detJ; 890 PetscReal localDiff = 0.0; 891 PetscInt dim, numFields, numComponents = 0, cStart, cEnd, cEndInterior, c, field, fieldOffset, comp; 892 PetscErrorCode ierr; 893 894 PetscFunctionBegin; 895 ierr = DMGetDimension(dm, &dim);CHKERRQ(ierr); 896 ierr = DMGetDefaultSection(dm, §ion);CHKERRQ(ierr); 897 ierr = PetscSectionGetNumFields(section, &numFields);CHKERRQ(ierr); 898 ierr = DMGetLocalVector(dm, &localX);CHKERRQ(ierr); 899 ierr = DMGlobalToLocalBegin(dm, X, INSERT_VALUES, localX);CHKERRQ(ierr); 900 ierr = DMGlobalToLocalEnd(dm, X, INSERT_VALUES, localX);CHKERRQ(ierr); 901 for (field = 0; field < numFields; ++field) { 902 PetscFE fe; 903 PetscInt Nc; 904 905 ierr = DMGetField(dm, field, (PetscObject *) &fe);CHKERRQ(ierr); 906 ierr = PetscFEGetQuadrature(fe, &quad);CHKERRQ(ierr); 907 ierr = PetscFEGetNumComponents(fe, &Nc);CHKERRQ(ierr); 908 numComponents += Nc; 909 } 910 /* ierr = DMPlexProjectFunctionLocal(dm, fe, funcs, INSERT_BC_VALUES, localX);CHKERRQ(ierr); */ 911 ierr = PetscMalloc7(numComponents,&funcVal,dim,&coords,dim,&realSpaceDer,dim,&v0,dim*dim,&J,dim*dim,&invJ,dim,&interpolantVec);CHKERRQ(ierr); 912 ierr = DMPlexGetHeightStratum(dm, 0, &cStart, &cEnd);CHKERRQ(ierr); 913 ierr = DMPlexGetHybridBounds(dm, &cEndInterior, NULL, NULL, NULL);CHKERRQ(ierr); 914 cEnd = cEndInterior < 0 ? cEnd : cEndInterior; 915 for (c = cStart; c < cEnd; ++c) { 916 PetscScalar *x = NULL; 917 PetscReal elemDiff = 0.0; 918 919 ierr = DMPlexComputeCellGeometryFEM(dm, c, NULL, v0, J, invJ, &detJ);CHKERRQ(ierr); 920 if (detJ <= 0.0) SETERRQ2(PETSC_COMM_SELF, PETSC_ERR_ARG_OUTOFRANGE, "Invalid determinant %g for element %d", detJ, c); 921 ierr = DMPlexVecGetClosure(dm, NULL, localX, c, NULL, &x);CHKERRQ(ierr); 922 923 for (field = 0, comp = 0, fieldOffset = 0; field < numFields; ++field) { 924 PetscFE fe; 925 void * const ctx = ctxs ? ctxs[field] : NULL; 926 const PetscReal *quadPoints, *quadWeights; 927 PetscReal *basisDer; 928 PetscInt numQuadPoints, Nb, Ncomp, q, d, e, fc, f, g; 929 930 ierr = DMGetField(dm, field, (PetscObject *) &fe);CHKERRQ(ierr); 931 ierr = PetscQuadratureGetData(quad, NULL, &numQuadPoints, &quadPoints, &quadWeights);CHKERRQ(ierr); 932 ierr = PetscFEGetDimension(fe, &Nb);CHKERRQ(ierr); 933 ierr = PetscFEGetNumComponents(fe, &Ncomp);CHKERRQ(ierr); 934 ierr = PetscFEGetDefaultTabulation(fe, NULL, &basisDer, NULL);CHKERRQ(ierr); 935 if (debug) { 936 char title[1024]; 937 ierr = PetscSNPrintf(title, 1023, "Solution for Field %d", field);CHKERRQ(ierr); 938 ierr = DMPrintCellVector(c, title, Nb*Ncomp, &x[fieldOffset]);CHKERRQ(ierr); 939 } 940 for (q = 0; q < numQuadPoints; ++q) { 941 for (d = 0; d < dim; d++) { 942 coords[d] = v0[d]; 943 for (e = 0; e < dim; e++) { 944 coords[d] += J[d*dim+e]*(quadPoints[q*dim+e] + 1.0); 945 } 946 } 947 ierr = (*funcs[field])(dim, time, coords, n, numFields, funcVal, ctx);CHKERRQ(ierr); 948 for (fc = 0; fc < Ncomp; ++fc) { 949 PetscScalar interpolant = 0.0; 950 951 for (d = 0; d < dim; ++d) interpolantVec[d] = 0.0; 952 for (f = 0; f < Nb; ++f) { 953 const PetscInt fidx = f*Ncomp+fc; 954 955 for (d = 0; d < dim; ++d) { 956 realSpaceDer[d] = 0.0; 957 for (g = 0; g < dim; ++g) { 958 realSpaceDer[d] += invJ[g*dim+d]*basisDer[(q*Nb*Ncomp+fidx)*dim+g]; 959 } 960 interpolantVec[d] += x[fieldOffset+fidx]*realSpaceDer[d]; 961 } 962 } 963 for (d = 0; d < dim; ++d) interpolant += interpolantVec[d]*n[d]; 964 if (debug) {ierr = PetscPrintf(PETSC_COMM_SELF, " elem %d fieldDer %d diff %g\n", c, field, PetscSqr(PetscRealPart(interpolant - funcVal[fc]))*quadWeights[q]*detJ);CHKERRQ(ierr);} 965 elemDiff += PetscSqr(PetscRealPart(interpolant - funcVal[fc]))*quadWeights[q]*detJ; 966 } 967 } 968 comp += Ncomp; 969 fieldOffset += Nb*Ncomp; 970 } 971 ierr = DMPlexVecRestoreClosure(dm, NULL, localX, c, NULL, &x);CHKERRQ(ierr); 972 if (debug) {ierr = PetscPrintf(PETSC_COMM_SELF, " elem %d diff %g\n", c, elemDiff);CHKERRQ(ierr);} 973 localDiff += elemDiff; 974 } 975 ierr = PetscFree7(funcVal,coords,realSpaceDer,v0,J,invJ,interpolantVec);CHKERRQ(ierr); 976 ierr = DMRestoreLocalVector(dm, &localX);CHKERRQ(ierr); 977 ierr = MPIU_Allreduce(&localDiff, diff, 1, MPIU_REAL, MPIU_SUM, PetscObjectComm((PetscObject)dm));CHKERRQ(ierr); 978 *diff = PetscSqrtReal(*diff); 979 PetscFunctionReturn(0); 980 } 981 982 #undef __FUNCT__ 983 #define __FUNCT__ "DMPlexComputeL2FieldDiff" 984 /*@C 985 DMPlexComputeL2FieldDiff - This function computes the L_2 difference between a function u and an FEM interpolant solution u_h, separated into field components. 986 987 Input Parameters: 988 + dm - The DM 989 . time - The time 990 . funcs - The functions to evaluate for each field component 991 . ctxs - Optional array of contexts to pass to each function, or NULL. 992 - X - The coefficient vector u_h 993 994 Output Parameter: 995 . diff - The array of differences, ||u^f - u^f_h||_2 996 997 Level: developer 998 999 .seealso: DMPlexProjectFunction(), DMPlexComputeL2Diff(), DMPlexComputeL2GradientDiff() 1000 @*/ 1001 PetscErrorCode DMPlexComputeL2FieldDiff(DM dm, PetscReal time, PetscErrorCode (**funcs)(PetscInt, PetscReal, const PetscReal [], PetscInt, PetscScalar *, void *), void **ctxs, Vec X, PetscReal diff[]) 1002 { 1003 const PetscInt debug = 0; 1004 PetscSection section; 1005 PetscQuadrature quad; 1006 Vec localX; 1007 PetscScalar *funcVal, *interpolant; 1008 PetscReal *coords, *v0, *J, *invJ, detJ; 1009 PetscReal *localDiff; 1010 const PetscReal *quadPoints, *quadWeights; 1011 PetscInt dim, numFields, numComponents = 0, numQuadPoints, cStart, cEnd, cEndInterior, c, field, fieldOffset; 1012 PetscErrorCode ierr; 1013 1014 PetscFunctionBegin; 1015 ierr = DMGetDimension(dm, &dim);CHKERRQ(ierr); 1016 ierr = DMGetDefaultSection(dm, §ion);CHKERRQ(ierr); 1017 ierr = PetscSectionGetNumFields(section, &numFields);CHKERRQ(ierr); 1018 ierr = DMGetLocalVector(dm, &localX);CHKERRQ(ierr); 1019 ierr = DMGlobalToLocalBegin(dm, X, INSERT_VALUES, localX);CHKERRQ(ierr); 1020 ierr = DMGlobalToLocalEnd(dm, X, INSERT_VALUES, localX);CHKERRQ(ierr); 1021 for (field = 0; field < numFields; ++field) { 1022 PetscObject obj; 1023 PetscClassId id; 1024 PetscInt Nc; 1025 1026 ierr = DMGetField(dm, field, &obj);CHKERRQ(ierr); 1027 ierr = PetscObjectGetClassId(obj, &id);CHKERRQ(ierr); 1028 if (id == PETSCFE_CLASSID) { 1029 PetscFE fe = (PetscFE) obj; 1030 1031 ierr = PetscFEGetQuadrature(fe, &quad);CHKERRQ(ierr); 1032 ierr = PetscFEGetNumComponents(fe, &Nc);CHKERRQ(ierr); 1033 } else if (id == PETSCFV_CLASSID) { 1034 PetscFV fv = (PetscFV) obj; 1035 1036 ierr = PetscFVGetQuadrature(fv, &quad);CHKERRQ(ierr); 1037 ierr = PetscFVGetNumComponents(fv, &Nc);CHKERRQ(ierr); 1038 } else SETERRQ1(PetscObjectComm((PetscObject)dm), PETSC_ERR_ARG_WRONG, "Unknown discretization type for field %d", field); 1039 numComponents += Nc; 1040 } 1041 ierr = PetscQuadratureGetData(quad, NULL, &numQuadPoints, &quadPoints, &quadWeights);CHKERRQ(ierr); 1042 ierr = DMPlexProjectFunctionLocal(dm, time, funcs, ctxs, INSERT_BC_VALUES, localX);CHKERRQ(ierr); 1043 ierr = PetscCalloc7(numFields,&localDiff,numComponents,&funcVal,numComponents,&interpolant,dim,&coords,dim,&v0,dim*dim,&J,dim*dim,&invJ);CHKERRQ(ierr); 1044 ierr = DMPlexGetHeightStratum(dm, 0, &cStart, &cEnd);CHKERRQ(ierr); 1045 ierr = DMPlexGetHybridBounds(dm, &cEndInterior, NULL, NULL, NULL);CHKERRQ(ierr); 1046 cEnd = cEndInterior < 0 ? cEnd : cEndInterior; 1047 for (c = cStart; c < cEnd; ++c) { 1048 PetscScalar *x = NULL; 1049 1050 ierr = DMPlexComputeCellGeometryFEM(dm, c, NULL, v0, J, invJ, &detJ);CHKERRQ(ierr); 1051 if (detJ <= 0.0) SETERRQ2(PETSC_COMM_SELF, PETSC_ERR_ARG_OUTOFRANGE, "Invalid determinant %g for element %d", detJ, c); 1052 ierr = DMPlexVecGetClosure(dm, NULL, localX, c, NULL, &x);CHKERRQ(ierr); 1053 1054 for (field = 0, fieldOffset = 0; field < numFields; ++field) { 1055 PetscObject obj; 1056 PetscClassId id; 1057 void * const ctx = ctxs ? ctxs[field] : NULL; 1058 PetscInt Nb, Nc, q, fc; 1059 1060 PetscReal elemDiff = 0.0; 1061 1062 ierr = DMGetField(dm, field, &obj);CHKERRQ(ierr); 1063 ierr = PetscObjectGetClassId(obj, &id);CHKERRQ(ierr); 1064 if (id == PETSCFE_CLASSID) {ierr = PetscFEGetNumComponents((PetscFE) obj, &Nc);CHKERRQ(ierr);ierr = PetscFEGetDimension((PetscFE) obj, &Nb);CHKERRQ(ierr);} 1065 else if (id == PETSCFV_CLASSID) {ierr = PetscFVGetNumComponents((PetscFV) obj, &Nc);CHKERRQ(ierr);Nb = 1;} 1066 else SETERRQ1(PetscObjectComm((PetscObject)dm), PETSC_ERR_ARG_WRONG, "Unknown discretization type for field %d", field); 1067 if (debug) { 1068 char title[1024]; 1069 ierr = PetscSNPrintf(title, 1023, "Solution for Field %d", field);CHKERRQ(ierr); 1070 ierr = DMPrintCellVector(c, title, Nb*Nc, &x[fieldOffset]);CHKERRQ(ierr); 1071 } 1072 for (q = 0; q < numQuadPoints; ++q) { 1073 CoordinatesRefToReal(dim, dim, v0, J, &quadPoints[q*dim], coords); 1074 ierr = (*funcs[field])(dim, time, coords, numFields, funcVal, ctx);CHKERRQ(ierr); 1075 if (id == PETSCFE_CLASSID) {ierr = PetscFEInterpolate_Static((PetscFE) obj, &x[fieldOffset], q, interpolant);CHKERRQ(ierr);} 1076 else if (id == PETSCFV_CLASSID) {ierr = PetscFVInterpolate_Static((PetscFV) obj, &x[fieldOffset], q, interpolant);CHKERRQ(ierr);} 1077 else SETERRQ1(PetscObjectComm((PetscObject)dm), PETSC_ERR_ARG_WRONG, "Unknown discretization type for field %d", field); 1078 for (fc = 0; fc < Nc; ++fc) { 1079 if (debug) {ierr = PetscPrintf(PETSC_COMM_SELF, " elem %d field %d diff %g\n", c, field, PetscSqr(PetscRealPart(interpolant[fc] - funcVal[fc]))*quadWeights[q]*detJ);CHKERRQ(ierr);} 1080 elemDiff += PetscSqr(PetscRealPart(interpolant[fc] - funcVal[fc]))*quadWeights[q]*detJ; 1081 } 1082 } 1083 fieldOffset += Nb*Nc; 1084 localDiff[field] += elemDiff; 1085 } 1086 ierr = DMPlexVecRestoreClosure(dm, NULL, localX, c, NULL, &x);CHKERRQ(ierr); 1087 } 1088 ierr = DMRestoreLocalVector(dm, &localX);CHKERRQ(ierr); 1089 ierr = MPIU_Allreduce(localDiff, diff, numFields, MPIU_REAL, MPIU_SUM, PetscObjectComm((PetscObject)dm));CHKERRQ(ierr); 1090 for (field = 0; field < numFields; ++field) diff[field] = PetscSqrtReal(diff[field]); 1091 ierr = PetscFree7(localDiff,funcVal,interpolant,coords,v0,J,invJ);CHKERRQ(ierr); 1092 PetscFunctionReturn(0); 1093 } 1094 1095 #undef __FUNCT__ 1096 #define __FUNCT__ "DMPlexComputeL2DiffVec" 1097 /*@C 1098 DMPlexComputeL2DiffVec - This function computes the cellwise L_2 difference between a function u and an FEM interpolant solution u_h, and stores it in a Vec. 1099 1100 Input Parameters: 1101 + dm - The DM 1102 . time - The time 1103 . funcs - The functions to evaluate for each field component 1104 . ctxs - Optional array of contexts to pass to each function, or NULL. 1105 - X - The coefficient vector u_h 1106 1107 Output Parameter: 1108 . D - A Vec which holds the difference ||u - u_h||_2 for each cell 1109 1110 Level: developer 1111 1112 .seealso: DMPlexProjectFunction(), DMPlexComputeL2Diff(), DMPlexComputeL2FieldDiff(), DMPlexComputeL2GradientDiff() 1113 @*/ 1114 PetscErrorCode DMPlexComputeL2DiffVec(DM dm, PetscReal time, PetscErrorCode (**funcs)(PetscInt, PetscReal, const PetscReal [], PetscInt, PetscScalar *, void *), void **ctxs, Vec X, Vec D) 1115 { 1116 PetscSection section; 1117 PetscQuadrature quad; 1118 Vec localX; 1119 PetscScalar *funcVal, *interpolant; 1120 PetscReal *coords, *v0, *J, *invJ, detJ; 1121 const PetscReal *quadPoints, *quadWeights; 1122 PetscInt dim, numFields, numComponents = 0, numQuadPoints, cStart, cEnd, cEndInterior, c, field, fieldOffset; 1123 PetscErrorCode ierr; 1124 1125 PetscFunctionBegin; 1126 ierr = VecSet(D, 0.0);CHKERRQ(ierr); 1127 ierr = DMGetDimension(dm, &dim);CHKERRQ(ierr); 1128 ierr = DMGetDefaultSection(dm, §ion);CHKERRQ(ierr); 1129 ierr = PetscSectionGetNumFields(section, &numFields);CHKERRQ(ierr); 1130 ierr = DMGetLocalVector(dm, &localX);CHKERRQ(ierr); 1131 ierr = DMGlobalToLocalBegin(dm, X, INSERT_VALUES, localX);CHKERRQ(ierr); 1132 ierr = DMGlobalToLocalEnd(dm, X, INSERT_VALUES, localX);CHKERRQ(ierr); 1133 for (field = 0; field < numFields; ++field) { 1134 PetscObject obj; 1135 PetscClassId id; 1136 PetscInt Nc; 1137 1138 ierr = DMGetField(dm, field, &obj);CHKERRQ(ierr); 1139 ierr = PetscObjectGetClassId(obj, &id);CHKERRQ(ierr); 1140 if (id == PETSCFE_CLASSID) { 1141 PetscFE fe = (PetscFE) obj; 1142 1143 ierr = PetscFEGetQuadrature(fe, &quad);CHKERRQ(ierr); 1144 ierr = PetscFEGetNumComponents(fe, &Nc);CHKERRQ(ierr); 1145 } else if (id == PETSCFV_CLASSID) { 1146 PetscFV fv = (PetscFV) obj; 1147 1148 ierr = PetscFVGetQuadrature(fv, &quad);CHKERRQ(ierr); 1149 ierr = PetscFVGetNumComponents(fv, &Nc);CHKERRQ(ierr); 1150 } else SETERRQ1(PetscObjectComm((PetscObject)dm), PETSC_ERR_ARG_WRONG, "Unknown discretization type for field %d", field); 1151 numComponents += Nc; 1152 } 1153 ierr = PetscQuadratureGetData(quad, NULL, &numQuadPoints, &quadPoints, &quadWeights);CHKERRQ(ierr); 1154 ierr = DMPlexProjectFunctionLocal(dm, time, funcs, ctxs, INSERT_BC_VALUES, localX);CHKERRQ(ierr); 1155 ierr = PetscMalloc6(numComponents,&funcVal,numComponents,&interpolant,dim,&coords,dim,&v0,dim*dim,&J,dim*dim,&invJ);CHKERRQ(ierr); 1156 ierr = DMPlexGetHeightStratum(dm, 0, &cStart, &cEnd);CHKERRQ(ierr); 1157 ierr = DMPlexGetHybridBounds(dm, &cEndInterior, NULL, NULL, NULL);CHKERRQ(ierr); 1158 cEnd = cEndInterior < 0 ? cEnd : cEndInterior; 1159 for (c = cStart; c < cEnd; ++c) { 1160 PetscScalar *x = NULL; 1161 PetscScalar elemDiff = 0.0; 1162 1163 ierr = DMPlexComputeCellGeometryFEM(dm, c, NULL, v0, J, invJ, &detJ);CHKERRQ(ierr); 1164 if (detJ <= 0.0) SETERRQ2(PETSC_COMM_SELF, PETSC_ERR_ARG_OUTOFRANGE, "Invalid determinant %g for element %d", detJ, c); 1165 ierr = DMPlexVecGetClosure(dm, NULL, localX, c, NULL, &x);CHKERRQ(ierr); 1166 1167 for (field = 0, fieldOffset = 0; field < numFields; ++field) { 1168 PetscObject obj; 1169 PetscClassId id; 1170 void * const ctx = ctxs ? ctxs[field] : NULL; 1171 PetscInt Nb, Nc, q, fc; 1172 1173 ierr = DMGetField(dm, field, &obj);CHKERRQ(ierr); 1174 ierr = PetscObjectGetClassId(obj, &id);CHKERRQ(ierr); 1175 if (id == PETSCFE_CLASSID) {ierr = PetscFEGetNumComponents((PetscFE) obj, &Nc);CHKERRQ(ierr);ierr = PetscFEGetDimension((PetscFE) obj, &Nb);CHKERRQ(ierr);} 1176 else if (id == PETSCFV_CLASSID) {ierr = PetscFVGetNumComponents((PetscFV) obj, &Nc);CHKERRQ(ierr);Nb = 1;} 1177 else SETERRQ1(PetscObjectComm((PetscObject)dm), PETSC_ERR_ARG_WRONG, "Unknown discretization type for field %d", field); 1178 for (q = 0; q < numQuadPoints; ++q) { 1179 CoordinatesRefToReal(dim, dim, v0, J, &quadPoints[q*dim], coords); 1180 ierr = (*funcs[field])(dim, time, coords, Nc, funcVal, ctx);CHKERRQ(ierr); 1181 if (id == PETSCFE_CLASSID) {ierr = PetscFEInterpolate_Static((PetscFE) obj, &x[fieldOffset], q, interpolant);CHKERRQ(ierr);} 1182 else if (id == PETSCFV_CLASSID) {ierr = PetscFVInterpolate_Static((PetscFV) obj, &x[fieldOffset], q, interpolant);CHKERRQ(ierr);} 1183 else SETERRQ1(PetscObjectComm((PetscObject)dm), PETSC_ERR_ARG_WRONG, "Unknown discretization type for field %d", field); 1184 for (fc = 0; fc < Nc; ++fc) { 1185 elemDiff += PetscSqr(PetscRealPart(interpolant[fc] - funcVal[fc]))*quadWeights[q]*detJ; 1186 } 1187 } 1188 fieldOffset += Nb*Nc; 1189 } 1190 ierr = DMPlexVecRestoreClosure(dm, NULL, localX, c, NULL, &x);CHKERRQ(ierr); 1191 ierr = VecSetValuesSection(D, section, c, &elemDiff, ADD_VALUES);CHKERRQ(ierr); 1192 } 1193 ierr = PetscFree6(funcVal,interpolant,coords,v0,J,invJ);CHKERRQ(ierr); 1194 ierr = DMRestoreLocalVector(dm, &localX);CHKERRQ(ierr); 1195 ierr = VecSqrtAbs(D);CHKERRQ(ierr); 1196 PetscFunctionReturn(0); 1197 } 1198 1199 #undef __FUNCT__ 1200 #define __FUNCT__ "DMPlexComputeIntegralFEM" 1201 /*@ 1202 DMPlexComputeIntegralFEM - Form the local integral F from the local input X using pointwise functions specified by the user 1203 1204 Input Parameters: 1205 + dm - The mesh 1206 . X - Local input vector 1207 - user - The user context 1208 1209 Output Parameter: 1210 . integral - Local integral for each field 1211 1212 Level: developer 1213 1214 .seealso: DMPlexComputeResidualFEM() 1215 @*/ 1216 PetscErrorCode DMPlexComputeIntegralFEM(DM dm, Vec X, PetscReal *integral, void *user) 1217 { 1218 DM_Plex *mesh = (DM_Plex *) dm->data; 1219 DM dmAux; 1220 Vec localX, A; 1221 PetscDS prob, probAux = NULL; 1222 PetscSection section, sectionAux; 1223 PetscFECellGeom *cgeom; 1224 PetscScalar *u, *a = NULL; 1225 PetscReal *lintegral, *vol; 1226 PetscInt dim, Nf, f, numCells, cStart, cEnd, cEndInterior, c; 1227 PetscInt totDim, totDimAux; 1228 PetscErrorCode ierr; 1229 1230 PetscFunctionBegin; 1231 ierr = PetscLogEventBegin(DMPLEX_IntegralFEM,dm,0,0,0);CHKERRQ(ierr); 1232 ierr = DMGetLocalVector(dm, &localX);CHKERRQ(ierr); 1233 ierr = DMGlobalToLocalBegin(dm, X, INSERT_VALUES, localX);CHKERRQ(ierr); 1234 ierr = DMGlobalToLocalEnd(dm, X, INSERT_VALUES, localX);CHKERRQ(ierr); 1235 ierr = DMGetDimension(dm, &dim);CHKERRQ(ierr); 1236 ierr = DMGetDefaultSection(dm, §ion);CHKERRQ(ierr); 1237 ierr = DMGetDS(dm, &prob);CHKERRQ(ierr); 1238 ierr = PetscDSGetTotalDimension(prob, &totDim);CHKERRQ(ierr); 1239 ierr = PetscSectionGetNumFields(section, &Nf);CHKERRQ(ierr); 1240 ierr = DMPlexGetHeightStratum(dm, 0, &cStart, &cEnd);CHKERRQ(ierr); 1241 ierr = DMPlexGetHybridBounds(dm, &cEndInterior, NULL, NULL, NULL);CHKERRQ(ierr); 1242 cEnd = cEndInterior < 0 ? cEnd : cEndInterior; 1243 numCells = cEnd - cStart; 1244 ierr = PetscObjectQuery((PetscObject) dm, "dmAux", (PetscObject *) &dmAux);CHKERRQ(ierr); 1245 ierr = PetscObjectQuery((PetscObject) dm, "A", (PetscObject *) &A);CHKERRQ(ierr); 1246 if (dmAux) { 1247 ierr = DMGetDefaultSection(dmAux, §ionAux);CHKERRQ(ierr); 1248 ierr = DMGetDS(dmAux, &probAux);CHKERRQ(ierr); 1249 ierr = PetscDSGetTotalDimension(probAux, &totDimAux);CHKERRQ(ierr); 1250 } 1251 ierr = DMPlexInsertBoundaryValues(dm, localX, 0.0, NULL, NULL, NULL);CHKERRQ(ierr); 1252 ierr = PetscMalloc4(Nf,&lintegral,numCells*totDim,&u,numCells,&cgeom,numCells,&vol);CHKERRQ(ierr); 1253 if (dmAux) {ierr = PetscMalloc1(numCells*totDimAux, &a);CHKERRQ(ierr);} 1254 for (f = 0; f < Nf; ++f) {lintegral[f] = 0.0;} 1255 for (c = cStart; c < cEnd; ++c) { 1256 PetscScalar *x = NULL; 1257 PetscInt i; 1258 1259 ierr = DMPlexComputeCellGeometryFEM(dm, c, NULL, cgeom[c].v0, cgeom[c].J, cgeom[c].invJ, &cgeom[c].detJ);CHKERRQ(ierr); 1260 ierr = DMPlexComputeCellGeometryFVM(dm, c, &vol[c], NULL, NULL);CHKERRQ(ierr); 1261 if (cgeom[c].detJ <= 0.0) SETERRQ2(PETSC_COMM_SELF, PETSC_ERR_ARG_OUTOFRANGE, "Invalid determinant %g for element %d", cgeom[c].detJ, c); 1262 ierr = DMPlexVecGetClosure(dm, section, localX, c, NULL, &x);CHKERRQ(ierr); 1263 for (i = 0; i < totDim; ++i) u[c*totDim+i] = x[i]; 1264 ierr = DMPlexVecRestoreClosure(dm, section, localX, c, NULL, &x);CHKERRQ(ierr); 1265 if (dmAux) { 1266 ierr = DMPlexVecGetClosure(dmAux, sectionAux, A, c, NULL, &x);CHKERRQ(ierr); 1267 for (i = 0; i < totDimAux; ++i) a[c*totDimAux+i] = x[i]; 1268 ierr = DMPlexVecRestoreClosure(dmAux, sectionAux, A, c, NULL, &x);CHKERRQ(ierr); 1269 } 1270 } 1271 for (f = 0; f < Nf; ++f) { 1272 PetscObject obj; 1273 PetscClassId id; 1274 PetscInt numChunks, numBatches, batchSize, numBlocks, blockSize, Ne, Nr, offset; 1275 1276 ierr = PetscDSGetDiscretization(prob, f, &obj);CHKERRQ(ierr); 1277 ierr = PetscObjectGetClassId(obj, &id);CHKERRQ(ierr); 1278 if (id == PETSCFE_CLASSID) { 1279 PetscFE fe = (PetscFE) obj; 1280 PetscQuadrature q; 1281 PetscInt Nq, Nb; 1282 1283 ierr = PetscFEGetTileSizes(fe, NULL, &numBlocks, NULL, &numBatches);CHKERRQ(ierr); 1284 ierr = PetscFEGetQuadrature(fe, &q);CHKERRQ(ierr); 1285 ierr = PetscQuadratureGetData(q, NULL, &Nq, NULL, NULL);CHKERRQ(ierr); 1286 ierr = PetscFEGetDimension(fe, &Nb);CHKERRQ(ierr); 1287 blockSize = Nb*Nq; 1288 batchSize = numBlocks * blockSize; 1289 ierr = PetscFESetTileSizes(fe, blockSize, numBlocks, batchSize, numBatches);CHKERRQ(ierr); 1290 numChunks = numCells / (numBatches*batchSize); 1291 Ne = numChunks*numBatches*batchSize; 1292 Nr = numCells % (numBatches*batchSize); 1293 offset = numCells - Nr; 1294 ierr = PetscFEIntegrate(fe, prob, f, Ne, cgeom, u, probAux, a, lintegral);CHKERRQ(ierr); 1295 ierr = PetscFEIntegrate(fe, prob, f, Nr, &cgeom[offset], &u[offset*totDim], probAux, &a[offset*totDimAux], lintegral);CHKERRQ(ierr); 1296 } else if (id == PETSCFV_CLASSID) { 1297 /* PetscFV fv = (PetscFV) obj; */ 1298 PetscInt foff; 1299 PetscPointFunc obj_func; 1300 PetscScalar lint; 1301 1302 ierr = PetscDSGetObjective(prob, f, &obj_func);CHKERRQ(ierr); 1303 ierr = PetscDSGetFieldOffset(prob, f, &foff);CHKERRQ(ierr); 1304 if (obj_func) { 1305 for (c = 0; c < numCells; ++c) { 1306 /* TODO: Need full pointwise interpolation and get centroid for x argument */ 1307 obj_func(dim, Nf, 0, NULL, NULL, &u[totDim*c+foff], NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0.0, NULL, &lint); 1308 lintegral[f] = PetscRealPart(lint)*vol[c]; 1309 } 1310 } 1311 } else SETERRQ1(PetscObjectComm((PetscObject) dm), PETSC_ERR_ARG_WRONG, "Unknown discretization type for field %d", f); 1312 } 1313 if (dmAux) {ierr = PetscFree(a);CHKERRQ(ierr);} 1314 if (mesh->printFEM) { 1315 ierr = PetscPrintf(PetscObjectComm((PetscObject) dm), "Local integral:");CHKERRQ(ierr); 1316 for (f = 0; f < Nf; ++f) {ierr = PetscPrintf(PetscObjectComm((PetscObject) dm), " %g", lintegral[f]);CHKERRQ(ierr);} 1317 ierr = PetscPrintf(PetscObjectComm((PetscObject) dm), "\n");CHKERRQ(ierr); 1318 } 1319 ierr = DMRestoreLocalVector(dm, &localX);CHKERRQ(ierr); 1320 ierr = MPIU_Allreduce(lintegral, integral, Nf, MPIU_REAL, MPIU_SUM, PetscObjectComm((PetscObject) dm));CHKERRQ(ierr); 1321 ierr = PetscFree4(lintegral,u,cgeom,vol);CHKERRQ(ierr); 1322 ierr = PetscLogEventEnd(DMPLEX_IntegralFEM,dm,0,0,0);CHKERRQ(ierr); 1323 PetscFunctionReturn(0); 1324 } 1325 1326 #undef __FUNCT__ 1327 #define __FUNCT__ "DMPlexComputeInterpolatorNested" 1328 /*@ 1329 DMPlexComputeInterpolatorNested - Form the local portion of the interpolation matrix I from the coarse DM to the uniformly refined DM. 1330 1331 Input Parameters: 1332 + dmf - The fine mesh 1333 . dmc - The coarse mesh 1334 - user - The user context 1335 1336 Output Parameter: 1337 . In - The interpolation matrix 1338 1339 Level: developer 1340 1341 .seealso: DMPlexComputeInterpolatorGeneral(), DMPlexComputeJacobianFEM() 1342 @*/ 1343 PetscErrorCode DMPlexComputeInterpolatorNested(DM dmc, DM dmf, Mat In, void *user) 1344 { 1345 DM_Plex *mesh = (DM_Plex *) dmc->data; 1346 const char *name = "Interpolator"; 1347 PetscDS prob; 1348 PetscFE *feRef; 1349 PetscFV *fvRef; 1350 PetscSection fsection, fglobalSection; 1351 PetscSection csection, cglobalSection; 1352 PetscScalar *elemMat; 1353 PetscInt dim, Nf, f, fieldI, fieldJ, offsetI, offsetJ, cStart, cEnd, cEndInterior, c; 1354 PetscInt cTotDim, rTotDim = 0; 1355 PetscErrorCode ierr; 1356 1357 PetscFunctionBegin; 1358 ierr = PetscLogEventBegin(DMPLEX_InterpolatorFEM,dmc,dmf,0,0);CHKERRQ(ierr); 1359 ierr = DMGetDimension(dmf, &dim);CHKERRQ(ierr); 1360 ierr = DMGetDefaultSection(dmf, &fsection);CHKERRQ(ierr); 1361 ierr = DMGetDefaultGlobalSection(dmf, &fglobalSection);CHKERRQ(ierr); 1362 ierr = DMGetDefaultSection(dmc, &csection);CHKERRQ(ierr); 1363 ierr = DMGetDefaultGlobalSection(dmc, &cglobalSection);CHKERRQ(ierr); 1364 ierr = PetscSectionGetNumFields(fsection, &Nf);CHKERRQ(ierr); 1365 ierr = DMPlexGetHeightStratum(dmc, 0, &cStart, &cEnd);CHKERRQ(ierr); 1366 ierr = DMPlexGetHybridBounds(dmc, &cEndInterior, NULL, NULL, NULL);CHKERRQ(ierr); 1367 cEnd = cEndInterior < 0 ? cEnd : cEndInterior; 1368 ierr = DMGetDS(dmf, &prob);CHKERRQ(ierr); 1369 ierr = PetscCalloc2(Nf,&feRef,Nf,&fvRef);CHKERRQ(ierr); 1370 for (f = 0; f < Nf; ++f) { 1371 PetscObject obj; 1372 PetscClassId id; 1373 PetscInt rNb = 0, Nc = 0; 1374 1375 ierr = PetscDSGetDiscretization(prob, f, &obj);CHKERRQ(ierr); 1376 ierr = PetscObjectGetClassId(obj, &id);CHKERRQ(ierr); 1377 if (id == PETSCFE_CLASSID) { 1378 PetscFE fe = (PetscFE) obj; 1379 1380 ierr = PetscFERefine(fe, &feRef[f]);CHKERRQ(ierr); 1381 ierr = PetscFEGetDimension(feRef[f], &rNb);CHKERRQ(ierr); 1382 ierr = PetscFEGetNumComponents(fe, &Nc);CHKERRQ(ierr); 1383 } else if (id == PETSCFV_CLASSID) { 1384 PetscFV fv = (PetscFV) obj; 1385 PetscDualSpace Q; 1386 1387 ierr = PetscFVRefine(fv, &fvRef[f]);CHKERRQ(ierr); 1388 ierr = PetscFVGetDualSpace(fvRef[f], &Q);CHKERRQ(ierr); 1389 ierr = PetscDualSpaceGetDimension(Q, &rNb);CHKERRQ(ierr); 1390 ierr = PetscFVGetNumComponents(fv, &Nc);CHKERRQ(ierr); 1391 } 1392 rTotDim += rNb*Nc; 1393 } 1394 ierr = PetscDSGetTotalDimension(prob, &cTotDim);CHKERRQ(ierr); 1395 ierr = PetscMalloc1(rTotDim*cTotDim,&elemMat);CHKERRQ(ierr); 1396 ierr = PetscMemzero(elemMat, rTotDim*cTotDim * sizeof(PetscScalar));CHKERRQ(ierr); 1397 for (fieldI = 0, offsetI = 0; fieldI < Nf; ++fieldI) { 1398 PetscDualSpace Qref; 1399 PetscQuadrature f; 1400 const PetscReal *qpoints, *qweights; 1401 PetscReal *points; 1402 PetscInt npoints = 0, Nc, Np, fpdim, i, k, p, d; 1403 1404 /* Compose points from all dual basis functionals */ 1405 if (feRef[fieldI]) { 1406 ierr = PetscFEGetDualSpace(feRef[fieldI], &Qref);CHKERRQ(ierr); 1407 ierr = PetscFEGetNumComponents(feRef[fieldI], &Nc);CHKERRQ(ierr); 1408 } else { 1409 ierr = PetscFVGetDualSpace(fvRef[fieldI], &Qref);CHKERRQ(ierr); 1410 ierr = PetscFVGetNumComponents(fvRef[fieldI], &Nc);CHKERRQ(ierr); 1411 } 1412 ierr = PetscDualSpaceGetDimension(Qref, &fpdim);CHKERRQ(ierr); 1413 for (i = 0; i < fpdim; ++i) { 1414 ierr = PetscDualSpaceGetFunctional(Qref, i, &f);CHKERRQ(ierr); 1415 ierr = PetscQuadratureGetData(f, NULL, &Np, NULL, NULL);CHKERRQ(ierr); 1416 npoints += Np; 1417 } 1418 ierr = PetscMalloc1(npoints*dim,&points);CHKERRQ(ierr); 1419 for (i = 0, k = 0; i < fpdim; ++i) { 1420 ierr = PetscDualSpaceGetFunctional(Qref, i, &f);CHKERRQ(ierr); 1421 ierr = PetscQuadratureGetData(f, NULL, &Np, &qpoints, NULL);CHKERRQ(ierr); 1422 for (p = 0; p < Np; ++p, ++k) for (d = 0; d < dim; ++d) points[k*dim+d] = qpoints[p*dim+d]; 1423 } 1424 1425 for (fieldJ = 0, offsetJ = 0; fieldJ < Nf; ++fieldJ) { 1426 PetscObject obj; 1427 PetscClassId id; 1428 PetscReal *B; 1429 PetscInt NcJ = 0, cpdim = 0, j; 1430 1431 ierr = PetscDSGetDiscretization(prob, fieldJ, &obj);CHKERRQ(ierr); 1432 ierr = PetscObjectGetClassId(obj, &id);CHKERRQ(ierr); 1433 if (id == PETSCFE_CLASSID) { 1434 PetscFE fe = (PetscFE) obj; 1435 1436 /* Evaluate basis at points */ 1437 ierr = PetscFEGetNumComponents(fe, &NcJ);CHKERRQ(ierr); 1438 ierr = PetscFEGetDimension(fe, &cpdim);CHKERRQ(ierr); 1439 /* For now, fields only interpolate themselves */ 1440 if (fieldI == fieldJ) { 1441 if (Nc != NcJ) SETERRQ2(PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "Number of components in fine space field %d does not match coarse field %d", Nc, NcJ); 1442 ierr = PetscFEGetTabulation(fe, npoints, points, &B, NULL, NULL);CHKERRQ(ierr); 1443 for (i = 0, k = 0; i < fpdim; ++i) { 1444 ierr = PetscDualSpaceGetFunctional(Qref, i, &f);CHKERRQ(ierr); 1445 ierr = PetscQuadratureGetData(f, NULL, &Np, NULL, &qweights);CHKERRQ(ierr); 1446 for (p = 0; p < Np; ++p, ++k) { 1447 for (j = 0; j < cpdim; ++j) { 1448 for (c = 0; c < Nc; ++c) elemMat[(offsetI + i*Nc + c)*cTotDim + offsetJ + j*NcJ + c] += B[k*cpdim*NcJ+j*Nc+c]*qweights[p]; 1449 } 1450 } 1451 } 1452 ierr = PetscFERestoreTabulation(fe, npoints, points, &B, NULL, NULL);CHKERRQ(ierr);CHKERRQ(ierr); 1453 } 1454 } else if (id == PETSCFV_CLASSID) { 1455 PetscFV fv = (PetscFV) obj; 1456 1457 /* Evaluate constant function at points */ 1458 ierr = PetscFVGetNumComponents(fv, &NcJ);CHKERRQ(ierr); 1459 cpdim = 1; 1460 /* For now, fields only interpolate themselves */ 1461 if (fieldI == fieldJ) { 1462 if (Nc != NcJ) SETERRQ2(PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "Number of components in fine space field %d does not match coarse field %d", Nc, NcJ); 1463 for (i = 0, k = 0; i < fpdim; ++i) { 1464 ierr = PetscDualSpaceGetFunctional(Qref, i, &f);CHKERRQ(ierr); 1465 ierr = PetscQuadratureGetData(f, NULL, &Np, NULL, &qweights);CHKERRQ(ierr); 1466 for (p = 0; p < Np; ++p, ++k) { 1467 for (j = 0; j < cpdim; ++j) { 1468 for (c = 0; c < Nc; ++c) elemMat[(offsetI + i*Nc + c)*cTotDim + offsetJ + j*NcJ + c] += 1.0*qweights[p]; 1469 } 1470 } 1471 } 1472 } 1473 } 1474 offsetJ += cpdim*NcJ; 1475 } 1476 offsetI += fpdim*Nc; 1477 ierr = PetscFree(points);CHKERRQ(ierr); 1478 } 1479 if (mesh->printFEM > 1) {ierr = DMPrintCellMatrix(0, name, rTotDim, cTotDim, elemMat);CHKERRQ(ierr);} 1480 /* Preallocate matrix */ 1481 { 1482 Mat preallocator; 1483 PetscScalar *vals; 1484 PetscInt *cellCIndices, *cellFIndices; 1485 PetscInt locRows, locCols, cell; 1486 1487 ierr = MatGetLocalSize(In, &locRows, &locCols);CHKERRQ(ierr); 1488 ierr = MatCreate(PetscObjectComm((PetscObject) In), &preallocator);CHKERRQ(ierr); 1489 ierr = MatSetType(preallocator, MATPREALLOCATOR);CHKERRQ(ierr); 1490 ierr = MatSetSizes(preallocator, locRows, locCols, PETSC_DETERMINE, PETSC_DETERMINE);CHKERRQ(ierr); 1491 ierr = MatSetUp(preallocator);CHKERRQ(ierr); 1492 ierr = PetscCalloc3(rTotDim*cTotDim, &vals,cTotDim,&cellCIndices,rTotDim,&cellFIndices);CHKERRQ(ierr); 1493 for (cell = cStart; cell < cEnd; ++cell) { 1494 ierr = DMPlexMatGetClosureIndicesRefined(dmf, fsection, fglobalSection, dmc, csection, cglobalSection, cell, cellCIndices, cellFIndices);CHKERRQ(ierr); 1495 ierr = MatSetValues(preallocator, rTotDim, cellFIndices, cTotDim, cellCIndices, vals, INSERT_VALUES);CHKERRQ(ierr); 1496 } 1497 ierr = PetscFree3(vals,cellCIndices,cellFIndices);CHKERRQ(ierr); 1498 ierr = MatAssemblyBegin(preallocator, MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 1499 ierr = MatAssemblyEnd(preallocator, MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 1500 ierr = MatPreallocatorPreallocate(preallocator, PETSC_TRUE, In);CHKERRQ(ierr); 1501 ierr = MatDestroy(&preallocator);CHKERRQ(ierr); 1502 } 1503 /* Fill matrix */ 1504 ierr = MatZeroEntries(In);CHKERRQ(ierr); 1505 for (c = cStart; c < cEnd; ++c) { 1506 ierr = DMPlexMatSetClosureRefined(dmf, fsection, fglobalSection, dmc, csection, cglobalSection, In, c, elemMat, INSERT_VALUES);CHKERRQ(ierr); 1507 } 1508 for (f = 0; f < Nf; ++f) {ierr = PetscFEDestroy(&feRef[f]);CHKERRQ(ierr);} 1509 ierr = PetscFree2(feRef,fvRef);CHKERRQ(ierr); 1510 ierr = PetscFree(elemMat);CHKERRQ(ierr); 1511 ierr = MatAssemblyBegin(In, MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 1512 ierr = MatAssemblyEnd(In, MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 1513 if (mesh->printFEM) { 1514 ierr = PetscPrintf(PETSC_COMM_WORLD, "%s:\n", name);CHKERRQ(ierr); 1515 ierr = MatChop(In, 1.0e-10);CHKERRQ(ierr); 1516 ierr = MatView(In, PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr); 1517 } 1518 ierr = PetscLogEventEnd(DMPLEX_InterpolatorFEM,dmc,dmf,0,0);CHKERRQ(ierr); 1519 PetscFunctionReturn(0); 1520 } 1521 1522 #undef __FUNCT__ 1523 #define __FUNCT__ "DMPlexComputeInterpolatorGeneral" 1524 /*@ 1525 DMPlexComputeInterpolatorGeneral - Form the local portion of the interpolation matrix I from the coarse DM to a non-nested fine DM. 1526 1527 Input Parameters: 1528 + dmf - The fine mesh 1529 . dmc - The coarse mesh 1530 - user - The user context 1531 1532 Output Parameter: 1533 . In - The interpolation matrix 1534 1535 Level: developer 1536 1537 .seealso: DMPlexComputeInterpolatorNested(), DMPlexComputeJacobianFEM() 1538 @*/ 1539 PetscErrorCode DMPlexComputeInterpolatorGeneral(DM dmc, DM dmf, Mat In, void *user) 1540 { 1541 DM_Plex *mesh = (DM_Plex *) dmf->data; 1542 const char *name = "Interpolator"; 1543 PetscDS prob; 1544 PetscSection fsection, csection, globalFSection, globalCSection; 1545 PetscHashJK ht; 1546 PetscLayout rLayout; 1547 PetscInt *dnz, *onz; 1548 PetscInt locRows, rStart, rEnd; 1549 PetscReal *x, *v0, *J, *invJ, detJ; 1550 PetscReal *v0c, *Jc, *invJc, detJc; 1551 PetscScalar *elemMat; 1552 PetscInt dim, Nf, field, totDim, cStart, cEnd, cell, ccell; 1553 PetscErrorCode ierr; 1554 1555 PetscFunctionBegin; 1556 ierr = DMGetCoordinateDim(dmc, &dim);CHKERRQ(ierr); 1557 ierr = DMGetDS(dmc, &prob);CHKERRQ(ierr); 1558 ierr = PetscDSGetRefCoordArrays(prob, &x, NULL);CHKERRQ(ierr); 1559 ierr = PetscDSGetNumFields(prob, &Nf);CHKERRQ(ierr); 1560 ierr = PetscMalloc3(dim,&v0,dim*dim,&J,dim*dim,&invJ);CHKERRQ(ierr); 1561 ierr = PetscMalloc3(dim,&v0c,dim*dim,&Jc,dim*dim,&invJc);CHKERRQ(ierr); 1562 ierr = DMGetDefaultSection(dmf, &fsection);CHKERRQ(ierr); 1563 ierr = DMGetDefaultGlobalSection(dmf, &globalFSection);CHKERRQ(ierr); 1564 ierr = DMGetDefaultSection(dmc, &csection);CHKERRQ(ierr); 1565 ierr = DMGetDefaultGlobalSection(dmc, &globalCSection);CHKERRQ(ierr); 1566 ierr = DMPlexGetHeightStratum(dmf, 0, &cStart, &cEnd);CHKERRQ(ierr); 1567 ierr = PetscDSGetTotalDimension(prob, &totDim);CHKERRQ(ierr); 1568 ierr = PetscMalloc1(totDim*totDim, &elemMat);CHKERRQ(ierr); 1569 1570 ierr = MatGetLocalSize(In, &locRows, NULL);CHKERRQ(ierr); 1571 ierr = PetscLayoutCreate(PetscObjectComm((PetscObject) In), &rLayout);CHKERRQ(ierr); 1572 ierr = PetscLayoutSetLocalSize(rLayout, locRows);CHKERRQ(ierr); 1573 ierr = PetscLayoutSetBlockSize(rLayout, 1);CHKERRQ(ierr); 1574 ierr = PetscLayoutSetUp(rLayout);CHKERRQ(ierr); 1575 ierr = PetscLayoutGetRange(rLayout, &rStart, &rEnd);CHKERRQ(ierr); 1576 ierr = PetscLayoutDestroy(&rLayout);CHKERRQ(ierr); 1577 ierr = PetscCalloc2(locRows,&dnz,locRows,&onz);CHKERRQ(ierr); 1578 ierr = PetscHashJKCreate(&ht);CHKERRQ(ierr); 1579 for (field = 0; field < Nf; ++field) { 1580 PetscObject obj; 1581 PetscClassId id; 1582 PetscDualSpace Q = NULL; 1583 PetscQuadrature f; 1584 const PetscReal *qpoints; 1585 PetscInt Nc, Np, fpdim, i, d; 1586 1587 ierr = PetscDSGetDiscretization(prob, field, &obj);CHKERRQ(ierr); 1588 ierr = PetscObjectGetClassId(obj, &id);CHKERRQ(ierr); 1589 if (id == PETSCFE_CLASSID) { 1590 PetscFE fe = (PetscFE) obj; 1591 1592 ierr = PetscFEGetDualSpace(fe, &Q);CHKERRQ(ierr); 1593 ierr = PetscFEGetNumComponents(fe, &Nc);CHKERRQ(ierr); 1594 } else if (id == PETSCFV_CLASSID) { 1595 PetscFV fv = (PetscFV) obj; 1596 1597 ierr = PetscFVGetDualSpace(fv, &Q);CHKERRQ(ierr); 1598 Nc = 1; 1599 } 1600 ierr = PetscDualSpaceGetDimension(Q, &fpdim);CHKERRQ(ierr); 1601 /* For each fine grid cell */ 1602 for (cell = cStart; cell < cEnd; ++cell) { 1603 PetscInt *findices, *cindices; 1604 PetscInt numFIndices, numCIndices; 1605 1606 ierr = DMPlexGetClosureIndices(dmf, fsection, globalFSection, cell, &numFIndices, &findices);CHKERRQ(ierr);CHKERRQ(ierr); 1607 ierr = DMPlexComputeCellGeometryFEM(dmf, cell, NULL, v0, J, invJ, &detJ);CHKERRQ(ierr); 1608 if (numFIndices != fpdim*Nc) SETERRQ2(PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "Number of fine indices %d != %d dual basis vecs", numFIndices, fpdim*Nc); 1609 for (i = 0; i < fpdim; ++i) { 1610 Vec pointVec; 1611 PetscScalar *pV; 1612 IS coarseCellIS; 1613 const PetscInt *coarseCells; 1614 PetscInt numCoarseCells, q, r, c; 1615 1616 /* Get points from the dual basis functional quadrature */ 1617 ierr = PetscDualSpaceGetFunctional(Q, i, &f);CHKERRQ(ierr); 1618 ierr = PetscQuadratureGetData(f, NULL, &Np, &qpoints, NULL);CHKERRQ(ierr); 1619 ierr = VecCreateSeq(PETSC_COMM_SELF, Np*dim, &pointVec);CHKERRQ(ierr); 1620 ierr = VecSetBlockSize(pointVec, dim);CHKERRQ(ierr); 1621 ierr = VecGetArray(pointVec, &pV);CHKERRQ(ierr); 1622 for (q = 0; q < Np; ++q) { 1623 /* Transform point to real space */ 1624 CoordinatesRefToReal(dim, dim, v0, J, &qpoints[q*dim], x); 1625 for (d = 0; d < dim; ++d) pV[q*dim+d] = x[d]; 1626 } 1627 ierr = VecRestoreArray(pointVec, &pV);CHKERRQ(ierr); 1628 /* Get set of coarse cells that overlap points (would like to group points by coarse cell) */ 1629 ierr = DMLocatePoints(dmc, pointVec, &coarseCellIS);CHKERRQ(ierr); 1630 ierr = ISViewFromOptions(coarseCellIS, NULL, "-interp_is_view");CHKERRQ(ierr); 1631 /* Update preallocation info */ 1632 ierr = ISGetLocalSize(coarseCellIS, &numCoarseCells);CHKERRQ(ierr); 1633 ierr = ISGetIndices(coarseCellIS, &coarseCells);CHKERRQ(ierr); 1634 for (r = 0; r < Nc; ++r) { 1635 PetscHashJKKey key; 1636 PetscHashJKIter missing, iter; 1637 1638 key.j = findices[i*Nc+r]; 1639 if (key.j < 0) continue; 1640 /* Get indices for coarse elements */ 1641 for (ccell = 0; ccell < numCoarseCells; ++ccell) { 1642 ierr = DMPlexGetClosureIndices(dmc, csection, globalCSection, coarseCells[ccell], &numCIndices, &cindices);CHKERRQ(ierr);CHKERRQ(ierr); 1643 for (c = 0; c < numCIndices; ++c) { 1644 key.k = cindices[c]; 1645 if (key.k < 0) continue; 1646 ierr = PetscHashJKPut(ht, key, &missing, &iter);CHKERRQ(ierr); 1647 if (missing) { 1648 ierr = PetscHashJKSet(ht, iter, 1);CHKERRQ(ierr); 1649 if ((key.k >= rStart) && (key.k < rEnd)) ++dnz[key.j-rStart]; 1650 else ++onz[key.j-rStart]; 1651 } 1652 } 1653 ierr = DMPlexRestoreClosureIndices(dmc, csection, globalCSection, coarseCells[ccell], &numCIndices, &cindices);CHKERRQ(ierr);CHKERRQ(ierr); 1654 } 1655 } 1656 ierr = ISRestoreIndices(coarseCellIS, &coarseCells);CHKERRQ(ierr); 1657 ierr = ISDestroy(&coarseCellIS);CHKERRQ(ierr); 1658 ierr = VecDestroy(&pointVec);CHKERRQ(ierr); 1659 } 1660 ierr = DMPlexRestoreClosureIndices(dmf, fsection, globalFSection, cell, &numFIndices, &findices);CHKERRQ(ierr);CHKERRQ(ierr); 1661 } 1662 } 1663 ierr = PetscHashJKDestroy(&ht);CHKERRQ(ierr); 1664 ierr = MatXAIJSetPreallocation(In, 1, dnz, onz, NULL, NULL);CHKERRQ(ierr); 1665 ierr = MatSetOption(In, MAT_NEW_NONZERO_ALLOCATION_ERR,PETSC_TRUE);CHKERRQ(ierr); 1666 ierr = PetscFree2(dnz,onz);CHKERRQ(ierr); 1667 for (field = 0; field < Nf; ++field) { 1668 PetscObject obj; 1669 PetscClassId id; 1670 PetscDualSpace Q = NULL; 1671 PetscQuadrature f; 1672 const PetscReal *qpoints, *qweights; 1673 PetscInt Nc, Np, fpdim, i, d; 1674 1675 ierr = PetscDSGetDiscretization(prob, field, &obj);CHKERRQ(ierr); 1676 ierr = PetscObjectGetClassId(obj, &id);CHKERRQ(ierr); 1677 if (id == PETSCFE_CLASSID) { 1678 PetscFE fe = (PetscFE) obj; 1679 1680 ierr = PetscFEGetDualSpace(fe, &Q);CHKERRQ(ierr); 1681 ierr = PetscFEGetNumComponents(fe, &Nc);CHKERRQ(ierr); 1682 } else if (id == PETSCFV_CLASSID) { 1683 PetscFV fv = (PetscFV) obj; 1684 1685 ierr = PetscFVGetDualSpace(fv, &Q);CHKERRQ(ierr); 1686 Nc = 1; 1687 } 1688 ierr = PetscDualSpaceGetDimension(Q, &fpdim);CHKERRQ(ierr); 1689 /* For each fine grid cell */ 1690 for (cell = cStart; cell < cEnd; ++cell) { 1691 PetscInt *findices, *cindices; 1692 PetscInt numFIndices, numCIndices; 1693 1694 ierr = DMPlexGetClosureIndices(dmf, fsection, globalFSection, cell, &numFIndices, &findices);CHKERRQ(ierr);CHKERRQ(ierr); 1695 ierr = DMPlexComputeCellGeometryFEM(dmf, cell, NULL, v0, J, invJ, &detJ);CHKERRQ(ierr); 1696 if (numFIndices != fpdim*Nc) SETERRQ2(PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "Number of fine indices %d != %d dual basis vecs", numFIndices, fpdim*Nc); 1697 for (i = 0; i < fpdim; ++i) { 1698 Vec pointVec; 1699 PetscScalar *pV; 1700 IS coarseCellIS; 1701 const PetscInt *coarseCells; 1702 PetscInt numCoarseCells, cpdim, q, c, j; 1703 1704 /* Get points from the dual basis functional quadrature */ 1705 ierr = PetscDualSpaceGetFunctional(Q, i, &f);CHKERRQ(ierr); 1706 ierr = PetscQuadratureGetData(f, NULL, &Np, &qpoints, &qweights);CHKERRQ(ierr); 1707 ierr = VecCreateSeq(PETSC_COMM_SELF, Np*dim, &pointVec);CHKERRQ(ierr); 1708 ierr = VecSetBlockSize(pointVec, dim);CHKERRQ(ierr); 1709 ierr = VecGetArray(pointVec, &pV);CHKERRQ(ierr); 1710 for (q = 0; q < Np; ++q) { 1711 /* Transform point to real space */ 1712 CoordinatesRefToReal(dim, dim, v0, J, &qpoints[q*dim], x); 1713 for (d = 0; d < dim; ++d) pV[q*dim+d] = x[d]; 1714 } 1715 ierr = VecRestoreArray(pointVec, &pV);CHKERRQ(ierr); 1716 /* Get set of coarse cells that overlap points (would like to group points by coarse cell) */ 1717 ierr = DMLocatePoints(dmc, pointVec, &coarseCellIS);CHKERRQ(ierr); 1718 /* Update preallocation info */ 1719 ierr = ISGetLocalSize(coarseCellIS, &numCoarseCells);CHKERRQ(ierr); 1720 ierr = ISGetIndices(coarseCellIS, &coarseCells);CHKERRQ(ierr); 1721 ierr = VecGetArray(pointVec, &pV);CHKERRQ(ierr); 1722 for (ccell = 0; ccell < numCoarseCells; ++ccell) { 1723 PetscReal pVReal[3]; 1724 1725 ierr = DMPlexGetClosureIndices(dmc, csection, globalCSection, coarseCells[ccell], &numCIndices, &cindices);CHKERRQ(ierr);CHKERRQ(ierr); 1726 /* Transform points from real space to coarse reference space */ 1727 ierr = DMPlexComputeCellGeometryFEM(dmc, coarseCells[ccell], NULL, v0c, Jc, invJc, &detJc);CHKERRQ(ierr); 1728 for (d = 0; d < dim; ++d) pVReal[d] = PetscRealPart(pV[ccell*dim+d]); 1729 CoordinatesRealToRef(dim, dim, v0c, invJc, pVReal, x); 1730 1731 if (id == PETSCFE_CLASSID) { 1732 PetscFE fe = (PetscFE) obj; 1733 PetscReal *B; 1734 1735 /* Evaluate coarse basis on contained point */ 1736 ierr = PetscFEGetDimension(fe, &cpdim);CHKERRQ(ierr); 1737 ierr = PetscFEGetTabulation(fe, 1, x, &B, NULL, NULL);CHKERRQ(ierr); 1738 /* Get elemMat entries by multiplying by weight */ 1739 for (j = 0; j < cpdim; ++j) { 1740 for (c = 0; c < Nc; ++c) elemMat[(c*cpdim + j)*Nc + c] = B[j*Nc + c]*qweights[ccell]; 1741 } 1742 ierr = PetscFERestoreTabulation(fe, 1, x, &B, NULL, NULL);CHKERRQ(ierr);CHKERRQ(ierr); 1743 } else { 1744 cpdim = 1; 1745 for (j = 0; j < cpdim; ++j) { 1746 for (c = 0; c < Nc; ++c) elemMat[(c*cpdim + j)*Nc + c] = 1.0*qweights[ccell]; 1747 } 1748 } 1749 /* Update interpolator */ 1750 if (mesh->printFEM > 1) {ierr = DMPrintCellMatrix(cell, name, Nc, numCIndices, elemMat);CHKERRQ(ierr);} 1751 ierr = MatSetValues(In, Nc, &findices[i*Nc], numCIndices, cindices, elemMat, INSERT_VALUES);CHKERRQ(ierr); 1752 ierr = DMPlexRestoreClosureIndices(dmc, csection, globalCSection, coarseCells[ccell], &numCIndices, &cindices);CHKERRQ(ierr);CHKERRQ(ierr); 1753 } 1754 ierr = VecRestoreArray(pointVec, &pV);CHKERRQ(ierr); 1755 ierr = ISRestoreIndices(coarseCellIS, &coarseCells);CHKERRQ(ierr); 1756 ierr = ISDestroy(&coarseCellIS);CHKERRQ(ierr); 1757 ierr = VecDestroy(&pointVec);CHKERRQ(ierr); 1758 } 1759 ierr = DMPlexRestoreClosureIndices(dmf, fsection, globalFSection, cell, &numFIndices, &findices);CHKERRQ(ierr);CHKERRQ(ierr); 1760 } 1761 } 1762 ierr = PetscFree3(v0,J,invJ);CHKERRQ(ierr); 1763 ierr = PetscFree3(v0c,Jc,invJc);CHKERRQ(ierr); 1764 ierr = PetscFree(elemMat);CHKERRQ(ierr); 1765 ierr = MatAssemblyBegin(In, MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 1766 ierr = MatAssemblyEnd(In, MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 1767 PetscFunctionReturn(0); 1768 } 1769 1770 #undef __FUNCT__ 1771 #define __FUNCT__ "DMPlexComputeInjectorFEM" 1772 PetscErrorCode DMPlexComputeInjectorFEM(DM dmc, DM dmf, VecScatter *sc, void *user) 1773 { 1774 PetscDS prob; 1775 PetscFE *feRef; 1776 PetscFV *fvRef; 1777 Vec fv, cv; 1778 IS fis, cis; 1779 PetscSection fsection, fglobalSection, csection, cglobalSection; 1780 PetscInt *cmap, *cellCIndices, *cellFIndices, *cindices, *findices; 1781 PetscInt cTotDim, fTotDim = 0, Nf, f, field, cStart, cEnd, cEndInterior, c, dim, d, startC, endC, offsetC, offsetF, m; 1782 PetscErrorCode ierr; 1783 1784 PetscFunctionBegin; 1785 ierr = PetscLogEventBegin(DMPLEX_InjectorFEM,dmc,dmf,0,0);CHKERRQ(ierr); 1786 ierr = DMGetDimension(dmf, &dim);CHKERRQ(ierr); 1787 ierr = DMGetDefaultSection(dmf, &fsection);CHKERRQ(ierr); 1788 ierr = DMGetDefaultGlobalSection(dmf, &fglobalSection);CHKERRQ(ierr); 1789 ierr = DMGetDefaultSection(dmc, &csection);CHKERRQ(ierr); 1790 ierr = DMGetDefaultGlobalSection(dmc, &cglobalSection);CHKERRQ(ierr); 1791 ierr = PetscSectionGetNumFields(fsection, &Nf);CHKERRQ(ierr); 1792 ierr = DMPlexGetHeightStratum(dmc, 0, &cStart, &cEnd);CHKERRQ(ierr); 1793 ierr = DMPlexGetHybridBounds(dmc, &cEndInterior, NULL, NULL, NULL);CHKERRQ(ierr); 1794 cEnd = cEndInterior < 0 ? cEnd : cEndInterior; 1795 ierr = DMGetDS(dmc, &prob);CHKERRQ(ierr); 1796 ierr = PetscCalloc2(Nf,&feRef,Nf,&fvRef);CHKERRQ(ierr); 1797 for (f = 0; f < Nf; ++f) { 1798 PetscObject obj; 1799 PetscClassId id; 1800 PetscInt fNb = 0, Nc = 0; 1801 1802 ierr = PetscDSGetDiscretization(prob, f, &obj);CHKERRQ(ierr); 1803 ierr = PetscObjectGetClassId(obj, &id);CHKERRQ(ierr); 1804 if (id == PETSCFE_CLASSID) { 1805 PetscFE fe = (PetscFE) obj; 1806 1807 ierr = PetscFERefine(fe, &feRef[f]);CHKERRQ(ierr); 1808 ierr = PetscFEGetDimension(feRef[f], &fNb);CHKERRQ(ierr); 1809 ierr = PetscFEGetNumComponents(fe, &Nc);CHKERRQ(ierr); 1810 } else if (id == PETSCFV_CLASSID) { 1811 PetscFV fv = (PetscFV) obj; 1812 PetscDualSpace Q; 1813 1814 ierr = PetscFVRefine(fv, &fvRef[f]);CHKERRQ(ierr); 1815 ierr = PetscFVGetDualSpace(fvRef[f], &Q);CHKERRQ(ierr); 1816 ierr = PetscDualSpaceGetDimension(Q, &fNb);CHKERRQ(ierr); 1817 ierr = PetscFVGetNumComponents(fv, &Nc);CHKERRQ(ierr); 1818 } 1819 fTotDim += fNb*Nc; 1820 } 1821 ierr = PetscDSGetTotalDimension(prob, &cTotDim);CHKERRQ(ierr); 1822 ierr = PetscMalloc1(cTotDim,&cmap);CHKERRQ(ierr); 1823 for (field = 0, offsetC = 0, offsetF = 0; field < Nf; ++field) { 1824 PetscFE feC; 1825 PetscFV fvC; 1826 PetscDualSpace QF, QC; 1827 PetscInt NcF, NcC, fpdim, cpdim; 1828 1829 if (feRef[field]) { 1830 ierr = PetscDSGetDiscretization(prob, field, (PetscObject *) &feC);CHKERRQ(ierr); 1831 ierr = PetscFEGetNumComponents(feC, &NcC);CHKERRQ(ierr); 1832 ierr = PetscFEGetNumComponents(feRef[field], &NcF);CHKERRQ(ierr); 1833 ierr = PetscFEGetDualSpace(feRef[field], &QF);CHKERRQ(ierr); 1834 ierr = PetscDualSpaceGetDimension(QF, &fpdim);CHKERRQ(ierr); 1835 ierr = PetscFEGetDualSpace(feC, &QC);CHKERRQ(ierr); 1836 ierr = PetscDualSpaceGetDimension(QC, &cpdim);CHKERRQ(ierr); 1837 } else { 1838 ierr = PetscDSGetDiscretization(prob, field, (PetscObject *) &fvC);CHKERRQ(ierr); 1839 ierr = PetscFVGetNumComponents(fvC, &NcC);CHKERRQ(ierr); 1840 ierr = PetscFVGetNumComponents(fvRef[field], &NcF);CHKERRQ(ierr); 1841 ierr = PetscFVGetDualSpace(fvRef[field], &QF);CHKERRQ(ierr); 1842 ierr = PetscDualSpaceGetDimension(QF, &fpdim);CHKERRQ(ierr); 1843 ierr = PetscFVGetDualSpace(fvC, &QC);CHKERRQ(ierr); 1844 ierr = PetscDualSpaceGetDimension(QC, &cpdim);CHKERRQ(ierr); 1845 } 1846 if (NcF != NcC) SETERRQ2(PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "Number of components in fine space field %d does not match coarse field %d", NcF, NcC); 1847 for (c = 0; c < cpdim; ++c) { 1848 PetscQuadrature cfunc; 1849 const PetscReal *cqpoints; 1850 PetscInt NpC; 1851 PetscBool found = PETSC_FALSE; 1852 1853 ierr = PetscDualSpaceGetFunctional(QC, c, &cfunc);CHKERRQ(ierr); 1854 ierr = PetscQuadratureGetData(cfunc, NULL, &NpC, &cqpoints, NULL);CHKERRQ(ierr); 1855 if (NpC != 1 && feRef[field]) SETERRQ(PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "Do not know how to do injection for moments"); 1856 for (f = 0; f < fpdim; ++f) { 1857 PetscQuadrature ffunc; 1858 const PetscReal *fqpoints; 1859 PetscReal sum = 0.0; 1860 PetscInt NpF, comp; 1861 1862 ierr = PetscDualSpaceGetFunctional(QF, f, &ffunc);CHKERRQ(ierr); 1863 ierr = PetscQuadratureGetData(ffunc, NULL, &NpF, &fqpoints, NULL);CHKERRQ(ierr); 1864 if (NpC != NpF) continue; 1865 for (d = 0; d < dim; ++d) sum += PetscAbsReal(cqpoints[d] - fqpoints[d]); 1866 if (sum > 1.0e-9) continue; 1867 for (comp = 0; comp < NcC; ++comp) { 1868 cmap[(offsetC+c)*NcC+comp] = (offsetF+f)*NcF+comp; 1869 } 1870 found = PETSC_TRUE; 1871 break; 1872 } 1873 if (!found) { 1874 /* TODO We really want the average here, but some asshole put VecScatter in the interface */ 1875 if (fvRef[field]) { 1876 PetscInt comp; 1877 for (comp = 0; comp < NcC; ++comp) { 1878 cmap[(offsetC+c)*NcC+comp] = (offsetF+0)*NcF+comp; 1879 } 1880 } else SETERRQ(PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "Could not locate matching functional for injection"); 1881 } 1882 } 1883 offsetC += cpdim*NcC; 1884 offsetF += fpdim*NcF; 1885 } 1886 for (f = 0; f < Nf; ++f) {ierr = PetscFEDestroy(&feRef[f]);CHKERRQ(ierr);ierr = PetscFVDestroy(&fvRef[f]);CHKERRQ(ierr);} 1887 ierr = PetscFree2(feRef,fvRef);CHKERRQ(ierr); 1888 1889 ierr = DMGetGlobalVector(dmf, &fv);CHKERRQ(ierr); 1890 ierr = DMGetGlobalVector(dmc, &cv);CHKERRQ(ierr); 1891 ierr = VecGetOwnershipRange(cv, &startC, &endC);CHKERRQ(ierr); 1892 ierr = PetscSectionGetConstrainedStorageSize(cglobalSection, &m);CHKERRQ(ierr); 1893 ierr = PetscMalloc2(cTotDim,&cellCIndices,fTotDim,&cellFIndices);CHKERRQ(ierr); 1894 ierr = PetscMalloc1(m,&cindices);CHKERRQ(ierr); 1895 ierr = PetscMalloc1(m,&findices);CHKERRQ(ierr); 1896 for (d = 0; d < m; ++d) cindices[d] = findices[d] = -1; 1897 for (c = cStart; c < cEnd; ++c) { 1898 ierr = DMPlexMatGetClosureIndicesRefined(dmf, fsection, fglobalSection, dmc, csection, cglobalSection, c, cellCIndices, cellFIndices);CHKERRQ(ierr); 1899 for (d = 0; d < cTotDim; ++d) { 1900 if ((cellCIndices[d] < startC) || (cellCIndices[d] >= endC)) continue; 1901 if ((findices[cellCIndices[d]-startC] >= 0) && (findices[cellCIndices[d]-startC] != cellFIndices[cmap[d]])) SETERRQ3(PETSC_COMM_SELF, PETSC_ERR_PLIB, "Coarse dof %d maps to both %d and %d", cindices[cellCIndices[d]-startC], findices[cellCIndices[d]-startC], cellFIndices[cmap[d]]); 1902 cindices[cellCIndices[d]-startC] = cellCIndices[d]; 1903 findices[cellCIndices[d]-startC] = cellFIndices[cmap[d]]; 1904 } 1905 } 1906 ierr = PetscFree(cmap);CHKERRQ(ierr); 1907 ierr = PetscFree2(cellCIndices,cellFIndices);CHKERRQ(ierr); 1908 1909 ierr = ISCreateGeneral(PETSC_COMM_SELF, m, cindices, PETSC_OWN_POINTER, &cis);CHKERRQ(ierr); 1910 ierr = ISCreateGeneral(PETSC_COMM_SELF, m, findices, PETSC_OWN_POINTER, &fis);CHKERRQ(ierr); 1911 ierr = VecScatterCreate(cv, cis, fv, fis, sc);CHKERRQ(ierr); 1912 ierr = ISDestroy(&cis);CHKERRQ(ierr); 1913 ierr = ISDestroy(&fis);CHKERRQ(ierr); 1914 ierr = DMRestoreGlobalVector(dmf, &fv);CHKERRQ(ierr); 1915 ierr = DMRestoreGlobalVector(dmc, &cv);CHKERRQ(ierr); 1916 ierr = PetscLogEventEnd(DMPLEX_InjectorFEM,dmc,dmf,0,0);CHKERRQ(ierr); 1917 PetscFunctionReturn(0); 1918 } 1919