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 /*@ 8 DMPlexGetScale - Get the scale for the specified fundamental unit 9 10 Not collective 11 12 Input Arguments: 13 + dm - the DM 14 - unit - The SI unit 15 16 Output Argument: 17 . scale - The value used to scale all quantities with this unit 18 19 Level: advanced 20 21 .seealso: DMPlexSetScale(), PetscUnit 22 @*/ 23 PetscErrorCode DMPlexGetScale(DM dm, PetscUnit unit, PetscReal *scale) 24 { 25 DM_Plex *mesh = (DM_Plex*) dm->data; 26 27 PetscFunctionBegin; 28 PetscValidHeaderSpecific(dm, DM_CLASSID, 1); 29 PetscValidPointer(scale, 3); 30 *scale = mesh->scale[unit]; 31 PetscFunctionReturn(0); 32 } 33 34 /*@ 35 DMPlexSetScale - Set the scale for the specified fundamental unit 36 37 Not collective 38 39 Input Arguments: 40 + dm - the DM 41 . unit - The SI unit 42 - scale - The value used to scale all quantities with this unit 43 44 Level: advanced 45 46 .seealso: DMPlexGetScale(), PetscUnit 47 @*/ 48 PetscErrorCode DMPlexSetScale(DM dm, PetscUnit unit, PetscReal scale) 49 { 50 DM_Plex *mesh = (DM_Plex*) dm->data; 51 52 PetscFunctionBegin; 53 PetscValidHeaderSpecific(dm, DM_CLASSID, 1); 54 mesh->scale[unit] = scale; 55 PetscFunctionReturn(0); 56 } 57 58 PETSC_STATIC_INLINE PetscInt epsilon(PetscInt i, PetscInt j, PetscInt k) 59 { 60 switch (i) { 61 case 0: 62 switch (j) { 63 case 0: return 0; 64 case 1: 65 switch (k) { 66 case 0: return 0; 67 case 1: return 0; 68 case 2: return 1; 69 } 70 case 2: 71 switch (k) { 72 case 0: return 0; 73 case 1: return -1; 74 case 2: return 0; 75 } 76 } 77 case 1: 78 switch (j) { 79 case 0: 80 switch (k) { 81 case 0: return 0; 82 case 1: return 0; 83 case 2: return -1; 84 } 85 case 1: return 0; 86 case 2: 87 switch (k) { 88 case 0: return 1; 89 case 1: return 0; 90 case 2: return 0; 91 } 92 } 93 case 2: 94 switch (j) { 95 case 0: 96 switch (k) { 97 case 0: return 0; 98 case 1: return 1; 99 case 2: return 0; 100 } 101 case 1: 102 switch (k) { 103 case 0: return -1; 104 case 1: return 0; 105 case 2: return 0; 106 } 107 case 2: return 0; 108 } 109 } 110 return 0; 111 } 112 113 static PetscErrorCode DMPlexProjectRigidBody_Private(PetscInt dim, PetscReal t, const PetscReal X[], PetscInt Nf, PetscScalar *mode, void *ctx) 114 { 115 PetscInt *ctxInt = (PetscInt *) ctx; 116 PetscInt dim2 = ctxInt[0]; 117 PetscInt d = ctxInt[1]; 118 PetscInt i, j, k = dim > 2 ? d - dim : d; 119 120 PetscFunctionBegin; 121 if (dim != dim2) SETERRQ2(PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "Input dimension %d does not match context dimension %d", dim, dim2); 122 for (i = 0; i < dim; i++) mode[i] = 0.; 123 if (d < dim) { 124 mode[d] = 1.; 125 } else { 126 for (i = 0; i < dim; i++) { 127 for (j = 0; j < dim; j++) { 128 mode[j] += epsilon(i, j, k)*X[i]; 129 } 130 } 131 } 132 PetscFunctionReturn(0); 133 } 134 135 /*@C 136 DMPlexCreateRigidBody - for the default global section, create rigid body modes from coordinates 137 138 Collective on DM 139 140 Input Arguments: 141 . dm - the DM 142 143 Output Argument: 144 . sp - the null space 145 146 Note: This is necessary to take account of Dirichlet conditions on the displacements 147 148 Level: advanced 149 150 .seealso: MatNullSpaceCreate() 151 @*/ 152 PetscErrorCode DMPlexCreateRigidBody(DM dm, MatNullSpace *sp) 153 { 154 MPI_Comm comm; 155 Vec mode[6]; 156 PetscSection section, globalSection; 157 PetscInt dim, dimEmbed, n, m, d, i, j; 158 PetscErrorCode ierr; 159 160 PetscFunctionBegin; 161 ierr = PetscObjectGetComm((PetscObject)dm,&comm);CHKERRQ(ierr); 162 ierr = DMGetDimension(dm, &dim);CHKERRQ(ierr); 163 ierr = DMGetCoordinateDim(dm, &dimEmbed);CHKERRQ(ierr); 164 if (dim == 1) { 165 ierr = MatNullSpaceCreate(comm, PETSC_TRUE, 0, NULL, sp);CHKERRQ(ierr); 166 PetscFunctionReturn(0); 167 } 168 ierr = DMGetDefaultSection(dm, §ion);CHKERRQ(ierr); 169 ierr = DMGetDefaultGlobalSection(dm, &globalSection);CHKERRQ(ierr); 170 ierr = PetscSectionGetConstrainedStorageSize(globalSection, &n);CHKERRQ(ierr); 171 m = (dim*(dim+1))/2; 172 ierr = VecCreate(comm, &mode[0]);CHKERRQ(ierr); 173 ierr = VecSetSizes(mode[0], n, PETSC_DETERMINE);CHKERRQ(ierr); 174 ierr = VecSetUp(mode[0]);CHKERRQ(ierr); 175 for (i = 1; i < m; ++i) {ierr = VecDuplicate(mode[0], &mode[i]);CHKERRQ(ierr);} 176 for (d = 0; d < m; d++) { 177 PetscInt ctx[2]; 178 PetscErrorCode (*func)(PetscInt, PetscReal, const PetscReal *, PetscInt, PetscScalar *, void *) = DMPlexProjectRigidBody_Private; 179 void *voidctx = (void *) (&ctx[0]); 180 181 ctx[0] = dimEmbed; 182 ctx[1] = d; 183 ierr = DMProjectFunction(dm, 0.0, &func, &voidctx, INSERT_VALUES, mode[d]);CHKERRQ(ierr); 184 } 185 for (i = 0; i < dim; ++i) {ierr = VecNormalize(mode[i], NULL);CHKERRQ(ierr);} 186 /* Orthonormalize system */ 187 for (i = dim; i < m; ++i) { 188 PetscScalar dots[6]; 189 190 ierr = VecMDot(mode[i], i, mode, dots);CHKERRQ(ierr); 191 for (j = 0; j < i; ++j) dots[j] *= -1.0; 192 ierr = VecMAXPY(mode[i], i, dots, mode);CHKERRQ(ierr); 193 ierr = VecNormalize(mode[i], NULL);CHKERRQ(ierr); 194 } 195 ierr = MatNullSpaceCreate(comm, PETSC_FALSE, m, mode, sp);CHKERRQ(ierr); 196 for (i = 0; i< m; ++i) {ierr = VecDestroy(&mode[i]);CHKERRQ(ierr);} 197 PetscFunctionReturn(0); 198 } 199 200 /*@ 201 DMPlexSetMaxProjectionHeight - In DMPlexProjectXXXLocal() functions, the projected values of a basis function's dofs 202 are computed by associating the basis function with one of the mesh points in its transitively-closed support, and 203 evaluating the dual space basis of that point. A basis function is associated with the point in its 204 transitively-closed support whose mesh height is highest (w.r.t. DAG height), but not greater than the maximum 205 projection height, which is set with this function. By default, the maximum projection height is zero, which means 206 that only mesh cells are used to project basis functions. A height of one, for example, evaluates a cell-interior 207 basis functions using its cells dual space basis, but all other basis functions with the dual space basis of a face. 208 209 Input Parameters: 210 + dm - the DMPlex object 211 - height - the maximum projection height >= 0 212 213 Level: advanced 214 215 .seealso: DMPlexGetMaxProjectionHeight(), DMProjectFunctionLocal(), DMProjectFunctionLabelLocal() 216 @*/ 217 PetscErrorCode DMPlexSetMaxProjectionHeight(DM dm, PetscInt height) 218 { 219 DM_Plex *plex = (DM_Plex *) dm->data; 220 221 PetscFunctionBegin; 222 PetscValidHeaderSpecific(dm, DM_CLASSID, 1); 223 plex->maxProjectionHeight = height; 224 PetscFunctionReturn(0); 225 } 226 227 /*@ 228 DMPlexGetMaxProjectionHeight - Get the maximum height (w.r.t. DAG) of mesh points used to evaluate dual bases in 229 DMPlexProjectXXXLocal() functions. 230 231 Input Parameters: 232 . dm - the DMPlex object 233 234 Output Parameters: 235 . height - the maximum projection height 236 237 Level: intermediate 238 239 .seealso: DMPlexSetMaxProjectionHeight(), DMProjectFunctionLocal(), DMProjectFunctionLabelLocal() 240 @*/ 241 PetscErrorCode DMPlexGetMaxProjectionHeight(DM dm, PetscInt *height) 242 { 243 DM_Plex *plex = (DM_Plex *) dm->data; 244 245 PetscFunctionBegin; 246 PetscValidHeaderSpecific(dm, DM_CLASSID, 1); 247 *height = plex->maxProjectionHeight; 248 PetscFunctionReturn(0); 249 } 250 251 /*@C 252 DMPlexInsertBoundaryValuesEssential - Insert boundary values into a local vector 253 254 Input Parameters: 255 + dm - The DM, with a PetscDS that matches the problem being constrained 256 . time - The time 257 . field - The field to constrain 258 . Nc - The number of constrained field components, or 0 for all components 259 . comps - An array of constrained component numbers, or NULL for all components 260 . label - The DMLabel defining constrained points 261 . numids - The number of DMLabel ids for constrained points 262 . ids - An array of ids for constrained points 263 . func - A pointwise function giving boundary values 264 - ctx - An optional user context for bcFunc 265 266 Output Parameter: 267 . locX - A local vector to receives the boundary values 268 269 Level: developer 270 271 .seealso: DMPlexInsertBoundaryValuesEssentialField(), DMAddBoundary() 272 @*/ 273 PetscErrorCode DMPlexInsertBoundaryValuesEssential(DM dm, PetscReal time, PetscInt field, PetscInt Nc, const PetscInt comps[], DMLabel label, PetscInt numids, const PetscInt ids[], PetscErrorCode (*func)(PetscInt, PetscReal, const PetscReal[], PetscInt, PetscScalar *, void *), void *ctx, Vec locX) 274 { 275 PetscErrorCode (**funcs)(PetscInt, PetscReal, const PetscReal x[], PetscInt, PetscScalar *u, void *ctx); 276 void **ctxs; 277 PetscInt numFields; 278 PetscErrorCode ierr; 279 280 PetscFunctionBegin; 281 ierr = DMGetNumFields(dm, &numFields);CHKERRQ(ierr); 282 ierr = PetscCalloc2(numFields,&funcs,numFields,&ctxs);CHKERRQ(ierr); 283 funcs[field] = func; 284 ctxs[field] = ctx; 285 ierr = DMProjectFunctionLabelLocal(dm, time, label, numids, ids, Nc, comps, funcs, ctxs, INSERT_BC_VALUES, locX);CHKERRQ(ierr); 286 ierr = PetscFree2(funcs,ctxs);CHKERRQ(ierr); 287 PetscFunctionReturn(0); 288 } 289 290 /*@C 291 DMPlexInsertBoundaryValuesEssentialField - Insert boundary values into a local vector 292 293 Input Parameters: 294 + dm - The DM, with a PetscDS that matches the problem being constrained 295 . time - The time 296 . locU - A local vector with the input solution values 297 . field - The field to constrain 298 . Nc - The number of constrained field components, or 0 for all components 299 . comps - An array of constrained component numbers, or NULL for all components 300 . label - The DMLabel defining constrained points 301 . numids - The number of DMLabel ids for constrained points 302 . ids - An array of ids for constrained points 303 . func - A pointwise function giving boundary values 304 - ctx - An optional user context for bcFunc 305 306 Output Parameter: 307 . locX - A local vector to receives the boundary values 308 309 Level: developer 310 311 .seealso: DMPlexInsertBoundaryValuesEssential(), DMAddBoundary() 312 @*/ 313 PetscErrorCode DMPlexInsertBoundaryValuesEssentialField(DM dm, PetscReal time, Vec locU, PetscInt field, PetscInt Nc, const PetscInt comps[], DMLabel label, PetscInt numids, const PetscInt ids[], 314 void (*func)(PetscInt, PetscInt, PetscInt, 315 const PetscInt[], const PetscInt[], const PetscScalar[], const PetscScalar[], const PetscScalar[], 316 const PetscInt[], const PetscInt[], const PetscScalar[], const PetscScalar[], const PetscScalar[], 317 PetscReal, const PetscReal[], PetscInt, const PetscScalar[], 318 PetscScalar[]), 319 void *ctx, Vec locX) 320 { 321 void (**funcs)(PetscInt, PetscInt, PetscInt, 322 const PetscInt[], const PetscInt[], const PetscScalar[], const PetscScalar[], const PetscScalar[], 323 const PetscInt[], const PetscInt[], const PetscScalar[], const PetscScalar[], const PetscScalar[], 324 PetscReal, const PetscReal[], PetscInt, const PetscScalar[], PetscScalar[]); 325 void **ctxs; 326 PetscInt numFields; 327 PetscErrorCode ierr; 328 329 PetscFunctionBegin; 330 ierr = DMGetNumFields(dm, &numFields);CHKERRQ(ierr); 331 ierr = PetscCalloc2(numFields,&funcs,numFields,&ctxs);CHKERRQ(ierr); 332 funcs[field] = func; 333 ctxs[field] = ctx; 334 ierr = DMProjectFieldLabelLocal(dm, time, label, numids, ids, Nc, comps, locU, funcs, INSERT_BC_VALUES, locX);CHKERRQ(ierr); 335 ierr = PetscFree2(funcs,ctxs);CHKERRQ(ierr); 336 PetscFunctionReturn(0); 337 } 338 339 /*@C 340 DMPlexInsertBoundaryValuesRiemann - Insert boundary values into a local vector 341 342 Input Parameters: 343 + dm - The DM, with a PetscDS that matches the problem being constrained 344 . time - The time 345 . faceGeometry - A vector with the FVM face geometry information 346 . cellGeometry - A vector with the FVM cell geometry information 347 . Grad - A vector with the FVM cell gradient information 348 . field - The field to constrain 349 . Nc - The number of constrained field components, or 0 for all components 350 . comps - An array of constrained component numbers, or NULL for all components 351 . label - The DMLabel defining constrained points 352 . numids - The number of DMLabel ids for constrained points 353 . ids - An array of ids for constrained points 354 . func - A pointwise function giving boundary values 355 - ctx - An optional user context for bcFunc 356 357 Output Parameter: 358 . locX - A local vector to receives the boundary values 359 360 Note: This implementation currently ignores the numcomps/comps argument from DMAddBoundary() 361 362 Level: developer 363 364 .seealso: DMPlexInsertBoundaryValuesEssential(), DMPlexInsertBoundaryValuesEssentialField(), DMAddBoundary() 365 @*/ 366 PetscErrorCode DMPlexInsertBoundaryValuesRiemann(DM dm, PetscReal time, Vec faceGeometry, Vec cellGeometry, Vec Grad, PetscInt field, PetscInt Nc, const PetscInt comps[], DMLabel label, PetscInt numids, const PetscInt ids[], 367 PetscErrorCode (*func)(PetscReal,const PetscReal*,const PetscReal*,const PetscScalar*,PetscScalar*,void*), void *ctx, Vec locX) 368 { 369 PetscDS prob; 370 PetscSF sf; 371 DM dmFace, dmCell, dmGrad; 372 const PetscScalar *facegeom, *cellgeom = NULL, *grad; 373 const PetscInt *leaves; 374 PetscScalar *x, *fx; 375 PetscInt dim, nleaves, loc, fStart, fEnd, pdim, i; 376 PetscErrorCode ierr, ierru = 0; 377 378 PetscFunctionBegin; 379 ierr = DMGetPointSF(dm, &sf);CHKERRQ(ierr); 380 ierr = PetscSFGetGraph(sf, NULL, &nleaves, &leaves, NULL);CHKERRQ(ierr); 381 nleaves = PetscMax(0, nleaves); 382 ierr = DMGetDimension(dm, &dim);CHKERRQ(ierr); 383 ierr = DMPlexGetHeightStratum(dm, 1, &fStart, &fEnd);CHKERRQ(ierr); 384 ierr = DMGetDS(dm, &prob);CHKERRQ(ierr); 385 ierr = VecGetDM(faceGeometry, &dmFace);CHKERRQ(ierr); 386 ierr = VecGetArrayRead(faceGeometry, &facegeom);CHKERRQ(ierr); 387 if (cellGeometry) { 388 ierr = VecGetDM(cellGeometry, &dmCell);CHKERRQ(ierr); 389 ierr = VecGetArrayRead(cellGeometry, &cellgeom);CHKERRQ(ierr); 390 } 391 if (Grad) { 392 PetscFV fv; 393 394 ierr = PetscDSGetDiscretization(prob, field, (PetscObject *) &fv);CHKERRQ(ierr); 395 ierr = VecGetDM(Grad, &dmGrad);CHKERRQ(ierr); 396 ierr = VecGetArrayRead(Grad, &grad);CHKERRQ(ierr); 397 ierr = PetscFVGetNumComponents(fv, &pdim);CHKERRQ(ierr); 398 ierr = DMGetWorkArray(dm, pdim, PETSC_SCALAR, &fx);CHKERRQ(ierr); 399 } 400 ierr = VecGetArray(locX, &x);CHKERRQ(ierr); 401 for (i = 0; i < numids; ++i) { 402 IS faceIS; 403 const PetscInt *faces; 404 PetscInt numFaces, f; 405 406 ierr = DMLabelGetStratumIS(label, ids[i], &faceIS);CHKERRQ(ierr); 407 if (!faceIS) continue; /* No points with that id on this process */ 408 ierr = ISGetLocalSize(faceIS, &numFaces);CHKERRQ(ierr); 409 ierr = ISGetIndices(faceIS, &faces);CHKERRQ(ierr); 410 for (f = 0; f < numFaces; ++f) { 411 const PetscInt face = faces[f], *cells; 412 PetscFVFaceGeom *fg; 413 414 if ((face < fStart) || (face >= fEnd)) continue; /* Refinement adds non-faces to labels */ 415 ierr = PetscFindInt(face, nleaves, (PetscInt *) leaves, &loc);CHKERRQ(ierr); 416 if (loc >= 0) continue; 417 ierr = DMPlexPointLocalRead(dmFace, face, facegeom, &fg);CHKERRQ(ierr); 418 ierr = DMPlexGetSupport(dm, face, &cells);CHKERRQ(ierr); 419 if (Grad) { 420 PetscFVCellGeom *cg; 421 PetscScalar *cx, *cgrad; 422 PetscScalar *xG; 423 PetscReal dx[3]; 424 PetscInt d; 425 426 ierr = DMPlexPointLocalRead(dmCell, cells[0], cellgeom, &cg);CHKERRQ(ierr); 427 ierr = DMPlexPointLocalRead(dm, cells[0], x, &cx);CHKERRQ(ierr); 428 ierr = DMPlexPointLocalRead(dmGrad, cells[0], grad, &cgrad);CHKERRQ(ierr); 429 ierr = DMPlexPointLocalFieldRef(dm, cells[1], field, x, &xG);CHKERRQ(ierr); 430 DMPlex_WaxpyD_Internal(dim, -1, cg->centroid, fg->centroid, dx); 431 for (d = 0; d < pdim; ++d) fx[d] = cx[d] + DMPlex_DotD_Internal(dim, &cgrad[d*dim], dx); 432 ierru = (*func)(time, fg->centroid, fg->normal, fx, xG, ctx); 433 if (ierru) { 434 ierr = ISRestoreIndices(faceIS, &faces);CHKERRQ(ierr); 435 ierr = ISDestroy(&faceIS);CHKERRQ(ierr); 436 goto cleanup; 437 } 438 } else { 439 PetscScalar *xI; 440 PetscScalar *xG; 441 442 ierr = DMPlexPointLocalRead(dm, cells[0], x, &xI);CHKERRQ(ierr); 443 ierr = DMPlexPointLocalFieldRef(dm, cells[1], field, x, &xG);CHKERRQ(ierr); 444 ierru = (*func)(time, fg->centroid, fg->normal, xI, xG, ctx); 445 if (ierru) { 446 ierr = ISRestoreIndices(faceIS, &faces);CHKERRQ(ierr); 447 ierr = ISDestroy(&faceIS);CHKERRQ(ierr); 448 goto cleanup; 449 } 450 } 451 } 452 ierr = ISRestoreIndices(faceIS, &faces);CHKERRQ(ierr); 453 ierr = ISDestroy(&faceIS);CHKERRQ(ierr); 454 } 455 cleanup: 456 ierr = VecRestoreArray(locX, &x);CHKERRQ(ierr); 457 if (Grad) { 458 ierr = DMRestoreWorkArray(dm, pdim, PETSC_SCALAR, &fx);CHKERRQ(ierr); 459 ierr = VecRestoreArrayRead(Grad, &grad);CHKERRQ(ierr); 460 } 461 if (cellGeometry) {ierr = VecRestoreArrayRead(cellGeometry, &cellgeom);CHKERRQ(ierr);} 462 ierr = VecRestoreArrayRead(faceGeometry, &facegeom);CHKERRQ(ierr); 463 CHKERRQ(ierru); 464 PetscFunctionReturn(0); 465 } 466 467 PetscErrorCode DMPlexInsertBoundaryValues_Plex(DM dm, PetscBool insertEssential, Vec locX, PetscReal time, Vec faceGeomFVM, Vec cellGeomFVM, Vec gradFVM) 468 { 469 PetscInt numBd, b; 470 PetscErrorCode ierr; 471 472 PetscFunctionBegin; 473 ierr = PetscDSGetNumBoundary(dm->prob, &numBd);CHKERRQ(ierr); 474 for (b = 0; b < numBd; ++b) { 475 DMBoundaryConditionType type; 476 const char *labelname; 477 DMLabel label; 478 PetscInt field, Nc; 479 const PetscInt *comps; 480 PetscObject obj; 481 PetscClassId id; 482 void (*func)(void); 483 PetscInt numids; 484 const PetscInt *ids; 485 void *ctx; 486 487 ierr = DMGetBoundary(dm, b, &type, NULL, &labelname, &field, &Nc, &comps, &func, &numids, &ids, &ctx);CHKERRQ(ierr); 488 if (insertEssential != (type & DM_BC_ESSENTIAL)) continue; 489 ierr = DMGetLabel(dm, labelname, &label);CHKERRQ(ierr); 490 ierr = DMGetField(dm, field, &obj);CHKERRQ(ierr); 491 ierr = PetscObjectGetClassId(obj, &id);CHKERRQ(ierr); 492 if (id == PETSCFE_CLASSID) { 493 switch (type) { 494 /* for FEM, there is no insertion to be done for non-essential boundary conditions */ 495 case DM_BC_ESSENTIAL: 496 ierr = DMPlexLabelAddCells(dm,label);CHKERRQ(ierr); 497 ierr = DMPlexInsertBoundaryValuesEssential(dm, time, field, Nc, comps, label, numids, ids, (PetscErrorCode (*)(PetscInt, PetscReal, const PetscReal[], PetscInt, PetscScalar *, void *)) func, ctx, locX);CHKERRQ(ierr); 498 ierr = DMPlexLabelClearCells(dm,label);CHKERRQ(ierr); 499 break; 500 case DM_BC_ESSENTIAL_FIELD: 501 ierr = DMPlexLabelAddCells(dm,label);CHKERRQ(ierr); 502 ierr = DMPlexInsertBoundaryValuesEssentialField(dm, time, locX, field, Nc, comps, label, numids, ids, 503 (void (*)(PetscInt, PetscInt, PetscInt, const PetscInt[], const PetscInt[], const PetscScalar[], const PetscScalar[], const PetscScalar[], 504 const PetscInt[], const PetscInt[], const PetscScalar[], const PetscScalar[], const PetscScalar[], 505 PetscReal, const PetscReal[], PetscInt, const PetscScalar[], PetscScalar[])) func, ctx, locX);CHKERRQ(ierr); 506 ierr = DMPlexLabelClearCells(dm,label);CHKERRQ(ierr); 507 break; 508 default: break; 509 } 510 } else if (id == PETSCFV_CLASSID) { 511 if (!faceGeomFVM) continue; 512 ierr = DMPlexInsertBoundaryValuesRiemann(dm, time, faceGeomFVM, cellGeomFVM, gradFVM, field, Nc, comps, label, numids, ids, 513 (PetscErrorCode (*)(PetscReal,const PetscReal*,const PetscReal*,const PetscScalar*,PetscScalar*,void*)) func, ctx, locX);CHKERRQ(ierr); 514 } else SETERRQ1(PetscObjectComm((PetscObject)dm), PETSC_ERR_ARG_WRONG, "Unknown discretization type for field %d", field); 515 } 516 PetscFunctionReturn(0); 517 } 518 519 /*@ 520 DMPlexInsertBoundaryValues - Puts coefficients which represent boundary values into the local solution vector 521 522 Input Parameters: 523 + dm - The DM 524 . insertEssential - Should I insert essential (e.g. Dirichlet) or inessential (e.g. Neumann) boundary conditions 525 . time - The time 526 . faceGeomFVM - Face geometry data for FV discretizations 527 . cellGeomFVM - Cell geometry data for FV discretizations 528 - gradFVM - Gradient reconstruction data for FV discretizations 529 530 Output Parameters: 531 . locX - Solution updated with boundary values 532 533 Level: developer 534 535 .seealso: DMProjectFunctionLabelLocal() 536 @*/ 537 PetscErrorCode DMPlexInsertBoundaryValues(DM dm, PetscBool insertEssential, Vec locX, PetscReal time, Vec faceGeomFVM, Vec cellGeomFVM, Vec gradFVM) 538 { 539 PetscErrorCode ierr; 540 541 PetscFunctionBegin; 542 PetscValidHeaderSpecific(dm, DM_CLASSID, 1); 543 PetscValidHeaderSpecific(locX, VEC_CLASSID, 2); 544 if (faceGeomFVM) {PetscValidHeaderSpecific(faceGeomFVM, VEC_CLASSID, 4);} 545 if (cellGeomFVM) {PetscValidHeaderSpecific(cellGeomFVM, VEC_CLASSID, 5);} 546 if (gradFVM) {PetscValidHeaderSpecific(gradFVM, VEC_CLASSID, 6);} 547 ierr = PetscTryMethod(dm,"DMPlexInsertBoundaryValues_C",(DM,PetscBool,Vec,PetscReal,Vec,Vec,Vec),(dm,insertEssential,locX,time,faceGeomFVM,cellGeomFVM,gradFVM));CHKERRQ(ierr); 548 PetscFunctionReturn(0); 549 } 550 551 PetscErrorCode DMComputeL2Diff_Plex(DM dm, PetscReal time, PetscErrorCode (**funcs)(PetscInt, PetscReal, const PetscReal [], PetscInt, PetscScalar *, void *), void **ctxs, Vec X, PetscReal *diff) 552 { 553 const PetscInt debug = 0; 554 PetscSection section; 555 PetscQuadrature quad; 556 Vec localX; 557 PetscScalar *funcVal, *interpolant; 558 PetscReal *coords, *detJ, *J; 559 PetscReal localDiff = 0.0; 560 const PetscReal *quadWeights; 561 PetscInt dim, coordDim, numFields, numComponents = 0, qNc, Nq, cStart, cEnd, cEndInterior, c, field, fieldOffset; 562 PetscErrorCode ierr; 563 564 PetscFunctionBegin; 565 ierr = DMGetDimension(dm, &dim);CHKERRQ(ierr); 566 ierr = DMGetCoordinateDim(dm, &coordDim);CHKERRQ(ierr); 567 ierr = DMGetDefaultSection(dm, §ion);CHKERRQ(ierr); 568 ierr = PetscSectionGetNumFields(section, &numFields);CHKERRQ(ierr); 569 ierr = DMGetLocalVector(dm, &localX);CHKERRQ(ierr); 570 ierr = DMProjectFunctionLocal(dm, time, funcs, ctxs, INSERT_BC_VALUES, localX);CHKERRQ(ierr); 571 ierr = DMGlobalToLocalBegin(dm, X, INSERT_VALUES, localX);CHKERRQ(ierr); 572 ierr = DMGlobalToLocalEnd(dm, X, INSERT_VALUES, localX);CHKERRQ(ierr); 573 for (field = 0; field < numFields; ++field) { 574 PetscObject obj; 575 PetscClassId id; 576 PetscInt Nc; 577 578 ierr = DMGetField(dm, field, &obj);CHKERRQ(ierr); 579 ierr = PetscObjectGetClassId(obj, &id);CHKERRQ(ierr); 580 if (id == PETSCFE_CLASSID) { 581 PetscFE fe = (PetscFE) obj; 582 583 ierr = PetscFEGetQuadrature(fe, &quad);CHKERRQ(ierr); 584 ierr = PetscFEGetNumComponents(fe, &Nc);CHKERRQ(ierr); 585 } else if (id == PETSCFV_CLASSID) { 586 PetscFV fv = (PetscFV) obj; 587 588 ierr = PetscFVGetQuadrature(fv, &quad);CHKERRQ(ierr); 589 ierr = PetscFVGetNumComponents(fv, &Nc);CHKERRQ(ierr); 590 } else SETERRQ1(PetscObjectComm((PetscObject)dm), PETSC_ERR_ARG_WRONG, "Unknown discretization type for field %d", field); 591 numComponents += Nc; 592 } 593 ierr = PetscQuadratureGetData(quad, NULL, &qNc, &Nq, NULL, &quadWeights);CHKERRQ(ierr); 594 if ((qNc != 1) && (qNc != numComponents)) SETERRQ2(PetscObjectComm((PetscObject) dm), PETSC_ERR_ARG_SIZ, "Quadrature components %D != %D field components", qNc, numComponents); 595 ierr = PetscMalloc5(numComponents,&funcVal,numComponents,&interpolant,coordDim*Nq,&coords,Nq,&detJ,coordDim*coordDim*Nq,&J);CHKERRQ(ierr); 596 ierr = DMPlexGetHeightStratum(dm, 0, &cStart, &cEnd);CHKERRQ(ierr); 597 ierr = DMPlexGetHybridBounds(dm, &cEndInterior, NULL, NULL, NULL);CHKERRQ(ierr); 598 cEnd = cEndInterior < 0 ? cEnd : cEndInterior; 599 for (c = cStart; c < cEnd; ++c) { 600 PetscScalar *x = NULL; 601 PetscReal elemDiff = 0.0; 602 PetscInt qc = 0; 603 604 ierr = DMPlexComputeCellGeometryFEM(dm, c, quad, coords, J, NULL, detJ);CHKERRQ(ierr); 605 ierr = DMPlexVecGetClosure(dm, NULL, localX, c, NULL, &x);CHKERRQ(ierr); 606 607 for (field = 0, fieldOffset = 0; field < numFields; ++field) { 608 PetscObject obj; 609 PetscClassId id; 610 void * const ctx = ctxs ? ctxs[field] : NULL; 611 PetscInt Nb, Nc, q, fc; 612 613 ierr = DMGetField(dm, field, &obj);CHKERRQ(ierr); 614 ierr = PetscObjectGetClassId(obj, &id);CHKERRQ(ierr); 615 if (id == PETSCFE_CLASSID) {ierr = PetscFEGetNumComponents((PetscFE) obj, &Nc);CHKERRQ(ierr);ierr = PetscFEGetDimension((PetscFE) obj, &Nb);CHKERRQ(ierr);} 616 else if (id == PETSCFV_CLASSID) {ierr = PetscFVGetNumComponents((PetscFV) obj, &Nc);CHKERRQ(ierr);Nb = 1;} 617 else SETERRQ1(PetscObjectComm((PetscObject)dm), PETSC_ERR_ARG_WRONG, "Unknown discretization type for field %d", field); 618 if (debug) { 619 char title[1024]; 620 ierr = PetscSNPrintf(title, 1023, "Solution for Field %d", field);CHKERRQ(ierr); 621 ierr = DMPrintCellVector(c, title, Nb*Nc, &x[fieldOffset]);CHKERRQ(ierr); 622 } 623 for (q = 0; q < Nq; ++q) { 624 if (detJ[q] <= 0.0) SETERRQ3(PETSC_COMM_SELF, PETSC_ERR_ARG_OUTOFRANGE, "Invalid determinant %g for element %D, point %D", detJ[q], c, q); 625 ierr = (*funcs[field])(coordDim, time, &coords[coordDim * q], Nc, funcVal, ctx); 626 if (ierr) { 627 PetscErrorCode ierr2; 628 ierr2 = DMPlexVecRestoreClosure(dm, NULL, localX, c, NULL, &x);CHKERRQ(ierr2); 629 ierr2 = DMRestoreLocalVector(dm, &localX);CHKERRQ(ierr2); 630 ierr2 = PetscFree5(funcVal,interpolant,coords,detJ,J);CHKERRQ(ierr2); 631 CHKERRQ(ierr); 632 } 633 if (id == PETSCFE_CLASSID) {ierr = PetscFEInterpolate_Static((PetscFE) obj, &x[fieldOffset], q, interpolant);CHKERRQ(ierr);} 634 else if (id == PETSCFV_CLASSID) {ierr = PetscFVInterpolate_Static((PetscFV) obj, &x[fieldOffset], q, interpolant);CHKERRQ(ierr);} 635 else SETERRQ1(PetscObjectComm((PetscObject)dm), PETSC_ERR_ARG_WRONG, "Unknown discretization type for field %d", field); 636 for (fc = 0; fc < Nc; ++fc) { 637 const PetscReal wt = quadWeights[q*qNc+(qNc == 1 ? 0 : qc+fc)]; 638 if (debug) {ierr = PetscPrintf(PETSC_COMM_SELF, " elem %d field %d diff %g\n", c, field, PetscSqr(PetscRealPart(interpolant[fc] - funcVal[fc]))*wt*detJ[q]);CHKERRQ(ierr);} 639 elemDiff += PetscSqr(PetscRealPart(interpolant[fc] - funcVal[fc]))*wt*detJ[q]; 640 } 641 } 642 fieldOffset += Nb; 643 qc += Nc; 644 } 645 ierr = DMPlexVecRestoreClosure(dm, NULL, localX, c, NULL, &x);CHKERRQ(ierr); 646 if (debug) {ierr = PetscPrintf(PETSC_COMM_SELF, " elem %d diff %g\n", c, elemDiff);CHKERRQ(ierr);} 647 localDiff += elemDiff; 648 } 649 ierr = PetscFree5(funcVal,interpolant,coords,detJ,J);CHKERRQ(ierr); 650 ierr = DMRestoreLocalVector(dm, &localX);CHKERRQ(ierr); 651 ierr = MPIU_Allreduce(&localDiff, diff, 1, MPIU_REAL, MPIU_SUM, PetscObjectComm((PetscObject)dm));CHKERRQ(ierr); 652 *diff = PetscSqrtReal(*diff); 653 PetscFunctionReturn(0); 654 } 655 656 PetscErrorCode DMComputeL2GradientDiff_Plex(DM dm, PetscReal time, PetscErrorCode (**funcs)(PetscInt, PetscReal, const PetscReal [], const PetscReal [], PetscInt, PetscScalar *, void *), void **ctxs, Vec X, const PetscReal n[], PetscReal *diff) 657 { 658 const PetscInt debug = 0; 659 PetscSection section; 660 PetscQuadrature quad; 661 Vec localX; 662 PetscScalar *funcVal, *interpolant; 663 const PetscReal *quadPoints, *quadWeights; 664 PetscReal *coords, *realSpaceDer, *J, *invJ, *detJ; 665 PetscReal localDiff = 0.0; 666 PetscInt dim, coordDim, qNc = 0, Nq = 0, numFields, numComponents = 0, cStart, cEnd, cEndInterior, c, field, fieldOffset; 667 PetscErrorCode ierr; 668 669 PetscFunctionBegin; 670 ierr = DMGetDimension(dm, &dim);CHKERRQ(ierr); 671 ierr = DMGetCoordinateDim(dm, &coordDim);CHKERRQ(ierr); 672 ierr = DMGetDefaultSection(dm, §ion);CHKERRQ(ierr); 673 ierr = PetscSectionGetNumFields(section, &numFields);CHKERRQ(ierr); 674 ierr = DMGetLocalVector(dm, &localX);CHKERRQ(ierr); 675 ierr = DMGlobalToLocalBegin(dm, X, INSERT_VALUES, localX);CHKERRQ(ierr); 676 ierr = DMGlobalToLocalEnd(dm, X, INSERT_VALUES, localX);CHKERRQ(ierr); 677 for (field = 0; field < numFields; ++field) { 678 PetscFE fe; 679 PetscInt Nc; 680 681 ierr = DMGetField(dm, field, (PetscObject *) &fe);CHKERRQ(ierr); 682 ierr = PetscFEGetQuadrature(fe, &quad);CHKERRQ(ierr); 683 ierr = PetscFEGetNumComponents(fe, &Nc);CHKERRQ(ierr); 684 numComponents += Nc; 685 } 686 ierr = PetscQuadratureGetData(quad, NULL, &qNc, &Nq, &quadPoints, &quadWeights);CHKERRQ(ierr); 687 if ((qNc != 1) && (qNc != numComponents)) SETERRQ2(PetscObjectComm((PetscObject) dm), PETSC_ERR_ARG_SIZ, "Quadrature components %D != %D field components", qNc, numComponents); 688 /* ierr = DMProjectFunctionLocal(dm, fe, funcs, INSERT_BC_VALUES, localX);CHKERRQ(ierr); */ 689 ierr = PetscMalloc7(numComponents,&funcVal,coordDim*Nq,&coords,coordDim*Nq,&realSpaceDer,coordDim*coordDim*Nq,&J,coordDim*coordDim*Nq,&invJ,numComponents,&interpolant,Nq,&detJ);CHKERRQ(ierr); 690 ierr = DMPlexGetHeightStratum(dm, 0, &cStart, &cEnd);CHKERRQ(ierr); 691 ierr = DMPlexGetHybridBounds(dm, &cEndInterior, NULL, NULL, NULL);CHKERRQ(ierr); 692 cEnd = cEndInterior < 0 ? cEnd : cEndInterior; 693 for (c = cStart; c < cEnd; ++c) { 694 PetscScalar *x = NULL; 695 PetscReal elemDiff = 0.0; 696 PetscInt qc = 0; 697 698 ierr = DMPlexComputeCellGeometryFEM(dm, c, quad, coords, J, invJ, detJ);CHKERRQ(ierr); 699 ierr = DMPlexVecGetClosure(dm, NULL, localX, c, NULL, &x);CHKERRQ(ierr); 700 701 for (field = 0, fieldOffset = 0; field < numFields; ++field) { 702 PetscFE fe; 703 void * const ctx = ctxs ? ctxs[field] : NULL; 704 PetscReal *basisDer; 705 PetscInt Nb, Nc, q, fc; 706 707 ierr = DMGetField(dm, field, (PetscObject *) &fe);CHKERRQ(ierr); 708 ierr = PetscFEGetDimension(fe, &Nb);CHKERRQ(ierr); 709 ierr = PetscFEGetNumComponents(fe, &Nc);CHKERRQ(ierr); 710 ierr = PetscFEGetDefaultTabulation(fe, NULL, &basisDer, NULL);CHKERRQ(ierr); 711 if (debug) { 712 char title[1024]; 713 ierr = PetscSNPrintf(title, 1023, "Solution for Field %d", field);CHKERRQ(ierr); 714 ierr = DMPrintCellVector(c, title, Nb, &x[fieldOffset]);CHKERRQ(ierr); 715 } 716 for (q = 0; q < Nq; ++q) { 717 if (detJ[q] <= 0.0) SETERRQ3(PETSC_COMM_SELF, PETSC_ERR_ARG_OUTOFRANGE, "Invalid determinant %g for element %D, quadrature points %D", detJ[q], c, q); 718 ierr = (*funcs[field])(coordDim, time, &coords[q*coordDim], n, numFields, funcVal, ctx); 719 if (ierr) { 720 PetscErrorCode ierr2; 721 ierr2 = DMPlexVecRestoreClosure(dm, NULL, localX, c, NULL, &x);CHKERRQ(ierr2); 722 ierr2 = DMRestoreLocalVector(dm, &localX);CHKERRQ(ierr2); 723 ierr2 = PetscFree7(funcVal,coords,realSpaceDer,J,invJ,interpolant,detJ);CHKERRQ(ierr2); 724 CHKERRQ(ierr); 725 } 726 ierr = PetscFEInterpolateGradient_Static(fe, &x[fieldOffset], coordDim, invJ, n, q, interpolant);CHKERRQ(ierr); 727 for (fc = 0; fc < Nc; ++fc) { 728 const PetscReal wt = quadWeights[q*qNc+(qNc == 1 ? 0 : qc+fc)]; 729 if (debug) {ierr = PetscPrintf(PETSC_COMM_SELF, " elem %d fieldDer %d diff %g\n", c, field, PetscSqr(PetscRealPart(interpolant[fc] - funcVal[fc]))*wt*detJ[q]);CHKERRQ(ierr);} 730 elemDiff += PetscSqr(PetscRealPart(interpolant[fc] - funcVal[fc]))*wt*detJ[q]; 731 } 732 } 733 fieldOffset += Nb; 734 qc += Nc; 735 } 736 ierr = DMPlexVecRestoreClosure(dm, NULL, localX, c, NULL, &x);CHKERRQ(ierr); 737 if (debug) {ierr = PetscPrintf(PETSC_COMM_SELF, " elem %d diff %g\n", c, elemDiff);CHKERRQ(ierr);} 738 localDiff += elemDiff; 739 } 740 ierr = PetscFree7(funcVal,coords,realSpaceDer,J,invJ,interpolant,detJ);CHKERRQ(ierr); 741 ierr = DMRestoreLocalVector(dm, &localX);CHKERRQ(ierr); 742 ierr = MPIU_Allreduce(&localDiff, diff, 1, MPIU_REAL, MPIU_SUM, PetscObjectComm((PetscObject)dm));CHKERRQ(ierr); 743 *diff = PetscSqrtReal(*diff); 744 PetscFunctionReturn(0); 745 } 746 747 PetscErrorCode DMComputeL2FieldDiff_Plex(DM dm, PetscReal time, PetscErrorCode (**funcs)(PetscInt, PetscReal, const PetscReal [], PetscInt, PetscScalar *, void *), void **ctxs, Vec X, PetscReal *diff) 748 { 749 const PetscInt debug = 0; 750 PetscSection section; 751 PetscQuadrature quad; 752 Vec localX; 753 PetscScalar *funcVal, *interpolant; 754 PetscReal *coords, *detJ, *J; 755 PetscReal *localDiff; 756 const PetscReal *quadPoints, *quadWeights; 757 PetscInt dim, coordDim, numFields, numComponents = 0, qNc, Nq, cStart, cEnd, cEndInterior, c, field, fieldOffset; 758 PetscErrorCode ierr; 759 760 PetscFunctionBegin; 761 ierr = DMGetDimension(dm, &dim);CHKERRQ(ierr); 762 ierr = DMGetCoordinateDim(dm, &coordDim);CHKERRQ(ierr); 763 ierr = DMGetDefaultSection(dm, §ion);CHKERRQ(ierr); 764 ierr = PetscSectionGetNumFields(section, &numFields);CHKERRQ(ierr); 765 ierr = DMGetLocalVector(dm, &localX);CHKERRQ(ierr); 766 ierr = DMProjectFunctionLocal(dm, time, funcs, ctxs, INSERT_BC_VALUES, localX);CHKERRQ(ierr); 767 ierr = DMGlobalToLocalBegin(dm, X, INSERT_VALUES, localX);CHKERRQ(ierr); 768 ierr = DMGlobalToLocalEnd(dm, X, INSERT_VALUES, localX);CHKERRQ(ierr); 769 for (field = 0; field < numFields; ++field) { 770 PetscObject obj; 771 PetscClassId id; 772 PetscInt Nc; 773 774 ierr = DMGetField(dm, field, &obj);CHKERRQ(ierr); 775 ierr = PetscObjectGetClassId(obj, &id);CHKERRQ(ierr); 776 if (id == PETSCFE_CLASSID) { 777 PetscFE fe = (PetscFE) obj; 778 779 ierr = PetscFEGetQuadrature(fe, &quad);CHKERRQ(ierr); 780 ierr = PetscFEGetNumComponents(fe, &Nc);CHKERRQ(ierr); 781 } else if (id == PETSCFV_CLASSID) { 782 PetscFV fv = (PetscFV) obj; 783 784 ierr = PetscFVGetQuadrature(fv, &quad);CHKERRQ(ierr); 785 ierr = PetscFVGetNumComponents(fv, &Nc);CHKERRQ(ierr); 786 } else SETERRQ1(PetscObjectComm((PetscObject)dm), PETSC_ERR_ARG_WRONG, "Unknown discretization type for field %d", field); 787 numComponents += Nc; 788 } 789 ierr = PetscQuadratureGetData(quad, NULL, &qNc, &Nq, &quadPoints, &quadWeights);CHKERRQ(ierr); 790 if ((qNc != 1) && (qNc != numComponents)) SETERRQ2(PetscObjectComm((PetscObject) dm), PETSC_ERR_ARG_SIZ, "Quadrature components %D != %D field components", qNc, numComponents); 791 ierr = PetscCalloc6(numFields,&localDiff,numComponents,&funcVal,numComponents,&interpolant,coordDim*Nq,&coords,Nq,&detJ,coordDim*coordDim*Nq,&J);CHKERRQ(ierr); 792 ierr = DMPlexGetHeightStratum(dm, 0, &cStart, &cEnd);CHKERRQ(ierr); 793 ierr = DMPlexGetHybridBounds(dm, &cEndInterior, NULL, NULL, NULL);CHKERRQ(ierr); 794 cEnd = cEndInterior < 0 ? cEnd : cEndInterior; 795 for (c = cStart; c < cEnd; ++c) { 796 PetscScalar *x = NULL; 797 PetscInt qc = 0; 798 799 ierr = DMPlexComputeCellGeometryFEM(dm, c, quad, coords, J, NULL, detJ);CHKERRQ(ierr); 800 ierr = DMPlexVecGetClosure(dm, NULL, localX, c, NULL, &x);CHKERRQ(ierr); 801 802 for (field = 0, fieldOffset = 0; field < numFields; ++field) { 803 PetscObject obj; 804 PetscClassId id; 805 void * const ctx = ctxs ? ctxs[field] : NULL; 806 PetscInt Nb, Nc, q, fc; 807 808 PetscReal elemDiff = 0.0; 809 810 ierr = DMGetField(dm, field, &obj);CHKERRQ(ierr); 811 ierr = PetscObjectGetClassId(obj, &id);CHKERRQ(ierr); 812 if (id == PETSCFE_CLASSID) {ierr = PetscFEGetNumComponents((PetscFE) obj, &Nc);CHKERRQ(ierr);ierr = PetscFEGetDimension((PetscFE) obj, &Nb);CHKERRQ(ierr);} 813 else if (id == PETSCFV_CLASSID) {ierr = PetscFVGetNumComponents((PetscFV) obj, &Nc);CHKERRQ(ierr);Nb = 1;} 814 else SETERRQ1(PetscObjectComm((PetscObject)dm), PETSC_ERR_ARG_WRONG, "Unknown discretization type for field %d", field); 815 if (debug) { 816 char title[1024]; 817 ierr = PetscSNPrintf(title, 1023, "Solution for Field %d", field);CHKERRQ(ierr); 818 ierr = DMPrintCellVector(c, title, Nb*Nc, &x[fieldOffset]);CHKERRQ(ierr); 819 } 820 for (q = 0; q < Nq; ++q) { 821 if (detJ[q] <= 0.0) SETERRQ3(PETSC_COMM_SELF, PETSC_ERR_ARG_OUTOFRANGE, "Invalid determinant %g for element %D, quadrature point %D", detJ, c, q); 822 ierr = (*funcs[field])(coordDim, time, &coords[coordDim*q], numFields, funcVal, ctx); 823 if (ierr) { 824 PetscErrorCode ierr2; 825 ierr2 = DMPlexVecRestoreClosure(dm, NULL, localX, c, NULL, &x);CHKERRQ(ierr2); 826 ierr2 = DMRestoreLocalVector(dm, &localX);CHKERRQ(ierr2); 827 ierr2 = PetscFree6(localDiff,funcVal,interpolant,coords,detJ,J);CHKERRQ(ierr2); 828 CHKERRQ(ierr); 829 } 830 if (id == PETSCFE_CLASSID) {ierr = PetscFEInterpolate_Static((PetscFE) obj, &x[fieldOffset], q, interpolant);CHKERRQ(ierr);} 831 else if (id == PETSCFV_CLASSID) {ierr = PetscFVInterpolate_Static((PetscFV) obj, &x[fieldOffset], q, interpolant);CHKERRQ(ierr);} 832 else SETERRQ1(PetscObjectComm((PetscObject)dm), PETSC_ERR_ARG_WRONG, "Unknown discretization type for field %d", field); 833 for (fc = 0; fc < Nc; ++fc) { 834 const PetscReal wt = quadWeights[q*qNc+(qNc == 1 ? 0 : qc+fc)]; 835 if (debug) {ierr = PetscPrintf(PETSC_COMM_SELF, " elem %d field %d point %g %g %g diff %g\n", c, field, coordDim > 0 ? coords[0] : 0., coordDim > 1 ? coords[1] : 0., coordDim > 2 ? coords[2] : 0., PetscSqr(PetscRealPart(interpolant[fc] - funcVal[fc]))*wt*detJ[q]);CHKERRQ(ierr);} 836 elemDiff += PetscSqr(PetscRealPart(interpolant[fc] - funcVal[fc]))*wt*detJ[q]; 837 } 838 } 839 fieldOffset += Nb; 840 qc += Nc; 841 localDiff[field] += elemDiff; 842 } 843 ierr = DMPlexVecRestoreClosure(dm, NULL, localX, c, NULL, &x);CHKERRQ(ierr); 844 } 845 ierr = DMRestoreLocalVector(dm, &localX);CHKERRQ(ierr); 846 ierr = MPIU_Allreduce(localDiff, diff, numFields, MPIU_REAL, MPIU_SUM, PetscObjectComm((PetscObject)dm));CHKERRQ(ierr); 847 for (field = 0; field < numFields; ++field) diff[field] = PetscSqrtReal(diff[field]); 848 ierr = PetscFree6(localDiff,funcVal,interpolant,coords,detJ,J);CHKERRQ(ierr); 849 PetscFunctionReturn(0); 850 } 851 852 /*@C 853 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. 854 855 Input Parameters: 856 + dm - The DM 857 . time - The time 858 . funcs - The functions to evaluate for each field component: NULL means that component does not contribute to error calculation 859 . ctxs - Optional array of contexts to pass to each function, or NULL. 860 - X - The coefficient vector u_h 861 862 Output Parameter: 863 . D - A Vec which holds the difference ||u - u_h||_2 for each cell 864 865 Level: developer 866 867 .seealso: DMProjectFunction(), DMComputeL2Diff(), DMPlexComputeL2FieldDiff(), DMComputeL2GradientDiff() 868 @*/ 869 PetscErrorCode DMPlexComputeL2DiffVec(DM dm, PetscReal time, PetscErrorCode (**funcs)(PetscInt, PetscReal, const PetscReal [], PetscInt, PetscScalar *, void *), void **ctxs, Vec X, Vec D) 870 { 871 PetscSection section; 872 PetscQuadrature quad; 873 Vec localX; 874 PetscScalar *funcVal, *interpolant; 875 PetscReal *coords, *detJ, *J; 876 const PetscReal *quadPoints, *quadWeights; 877 PetscInt dim, coordDim, numFields, numComponents = 0, qNc, Nq, cStart, cEnd, cEndInterior, c, field, fieldOffset; 878 PetscErrorCode ierr; 879 880 PetscFunctionBegin; 881 ierr = VecSet(D, 0.0);CHKERRQ(ierr); 882 ierr = DMGetDimension(dm, &dim);CHKERRQ(ierr); 883 ierr = DMGetCoordinateDim(dm, &coordDim);CHKERRQ(ierr); 884 ierr = DMGetDefaultSection(dm, §ion);CHKERRQ(ierr); 885 ierr = PetscSectionGetNumFields(section, &numFields);CHKERRQ(ierr); 886 ierr = DMGetLocalVector(dm, &localX);CHKERRQ(ierr); 887 ierr = DMProjectFunctionLocal(dm, time, funcs, ctxs, INSERT_BC_VALUES, localX);CHKERRQ(ierr); 888 ierr = DMGlobalToLocalBegin(dm, X, INSERT_VALUES, localX);CHKERRQ(ierr); 889 ierr = DMGlobalToLocalEnd(dm, X, INSERT_VALUES, localX);CHKERRQ(ierr); 890 for (field = 0; field < numFields; ++field) { 891 PetscObject obj; 892 PetscClassId id; 893 PetscInt Nc; 894 895 ierr = DMGetField(dm, field, &obj);CHKERRQ(ierr); 896 ierr = PetscObjectGetClassId(obj, &id);CHKERRQ(ierr); 897 if (id == PETSCFE_CLASSID) { 898 PetscFE fe = (PetscFE) obj; 899 900 ierr = PetscFEGetQuadrature(fe, &quad);CHKERRQ(ierr); 901 ierr = PetscFEGetNumComponents(fe, &Nc);CHKERRQ(ierr); 902 } else if (id == PETSCFV_CLASSID) { 903 PetscFV fv = (PetscFV) obj; 904 905 ierr = PetscFVGetQuadrature(fv, &quad);CHKERRQ(ierr); 906 ierr = PetscFVGetNumComponents(fv, &Nc);CHKERRQ(ierr); 907 } else SETERRQ1(PetscObjectComm((PetscObject)dm), PETSC_ERR_ARG_WRONG, "Unknown discretization type for field %d", field); 908 numComponents += Nc; 909 } 910 ierr = PetscQuadratureGetData(quad, NULL, &qNc, &Nq, &quadPoints, &quadWeights);CHKERRQ(ierr); 911 if ((qNc != 1) && (qNc != numComponents)) SETERRQ2(PetscObjectComm((PetscObject) dm), PETSC_ERR_ARG_SIZ, "Quadrature components %D != %D field components", qNc, numComponents); 912 ierr = PetscMalloc5(numComponents,&funcVal,numComponents,&interpolant,coordDim*Nq,&coords,Nq,&detJ,coordDim*coordDim*Nq,&J);CHKERRQ(ierr); 913 ierr = DMPlexGetHeightStratum(dm, 0, &cStart, &cEnd);CHKERRQ(ierr); 914 ierr = DMPlexGetHybridBounds(dm, &cEndInterior, NULL, NULL, NULL);CHKERRQ(ierr); 915 cEnd = cEndInterior < 0 ? cEnd : cEndInterior; 916 for (c = cStart; c < cEnd; ++c) { 917 PetscScalar *x = NULL; 918 PetscScalar elemDiff = 0.0; 919 PetscInt qc = 0; 920 921 ierr = DMPlexComputeCellGeometryFEM(dm, c, quad, coords, J, NULL, detJ);CHKERRQ(ierr); 922 ierr = DMPlexVecGetClosure(dm, NULL, localX, c, NULL, &x);CHKERRQ(ierr); 923 924 for (field = 0, fieldOffset = 0; field < numFields; ++field) { 925 PetscObject obj; 926 PetscClassId id; 927 void * const ctx = ctxs ? ctxs[field] : NULL; 928 PetscInt Nb, Nc, q, fc; 929 930 ierr = DMGetField(dm, field, &obj);CHKERRQ(ierr); 931 ierr = PetscObjectGetClassId(obj, &id);CHKERRQ(ierr); 932 if (id == PETSCFE_CLASSID) {ierr = PetscFEGetNumComponents((PetscFE) obj, &Nc);CHKERRQ(ierr);ierr = PetscFEGetDimension((PetscFE) obj, &Nb);CHKERRQ(ierr);} 933 else if (id == PETSCFV_CLASSID) {ierr = PetscFVGetNumComponents((PetscFV) obj, &Nc);CHKERRQ(ierr);Nb = 1;} 934 else SETERRQ1(PetscObjectComm((PetscObject)dm), PETSC_ERR_ARG_WRONG, "Unknown discretization type for field %d", field); 935 if (funcs[field]) { 936 for (q = 0; q < Nq; ++q) { 937 if (detJ[q] <= 0.0) SETERRQ3(PETSC_COMM_SELF, PETSC_ERR_ARG_OUTOFRANGE, "Invalid determinant %g for element %D, quadrature points %D", (double)detJ[q], c, q); 938 ierr = (*funcs[field])(dim, time, &coords[q*coordDim], Nc, funcVal, ctx); 939 if (ierr) { 940 PetscErrorCode ierr2; 941 ierr2 = DMPlexVecRestoreClosure(dm, NULL, localX, c, NULL, &x);CHKERRQ(ierr2); 942 ierr2 = PetscFree5(funcVal,interpolant,coords,detJ,J);CHKERRQ(ierr2); 943 ierr2 = DMRestoreLocalVector(dm, &localX);CHKERRQ(ierr2); 944 CHKERRQ(ierr); 945 } 946 if (id == PETSCFE_CLASSID) {ierr = PetscFEInterpolate_Static((PetscFE) obj, &x[fieldOffset], q, interpolant);CHKERRQ(ierr);} 947 else if (id == PETSCFV_CLASSID) {ierr = PetscFVInterpolate_Static((PetscFV) obj, &x[fieldOffset], q, interpolant);CHKERRQ(ierr);} 948 else SETERRQ1(PetscObjectComm((PetscObject)dm), PETSC_ERR_ARG_WRONG, "Unknown discretization type for field %d", field); 949 for (fc = 0; fc < Nc; ++fc) { 950 const PetscReal wt = quadWeights[q*qNc+(qNc == 1 ? 0 : qc+fc)]; 951 elemDiff += PetscSqr(PetscRealPart(interpolant[fc] - funcVal[fc]))*wt*detJ[q]; 952 } 953 } 954 } 955 fieldOffset += Nb; 956 qc += Nc; 957 } 958 ierr = DMPlexVecRestoreClosure(dm, NULL, localX, c, NULL, &x);CHKERRQ(ierr); 959 ierr = VecSetValue(D, c - cStart, elemDiff, INSERT_VALUES);CHKERRQ(ierr); 960 } 961 ierr = PetscFree5(funcVal,interpolant,coords,detJ,J);CHKERRQ(ierr); 962 ierr = DMRestoreLocalVector(dm, &localX);CHKERRQ(ierr); 963 ierr = VecSqrtAbs(D);CHKERRQ(ierr); 964 PetscFunctionReturn(0); 965 } 966 967 /*@C 968 DMPlexComputeGradientClementInterpolant - This function computes the L2 projection of the cellwise gradient of a function u onto P1, and stores it in a Vec. 969 970 Input Parameters: 971 + dm - The DM 972 - LocX - The coefficient vector u_h 973 974 Output Parameter: 975 . locC - A Vec which holds the Clement interpolant of the gradient 976 977 Notes: Add citation to (Clement, 1975) and definition of the interpolant 978 \nabla u_h(v_i) = \sum_{T_i \in support(v_i)} |T_i| \nabla u_h(T_i) / \sum_{T_i \in support(v_i)} |T_i| where |T_i| is the cell volume 979 980 Level: developer 981 982 .seealso: DMProjectFunction(), DMComputeL2Diff(), DMPlexComputeL2FieldDiff(), DMComputeL2GradientDiff() 983 @*/ 984 PetscErrorCode DMPlexComputeGradientClementInterpolant(DM dm, Vec locX, Vec locC) 985 { 986 DM_Plex *mesh = (DM_Plex *) dm->data; 987 PetscInt debug = mesh->printFEM; 988 DM dmC; 989 PetscSection section; 990 PetscQuadrature quad; 991 PetscScalar *interpolant, *gradsum; 992 PetscReal *coords, *detJ, *J, *invJ; 993 const PetscReal *quadPoints, *quadWeights; 994 PetscInt dim, coordDim, numFields, numComponents = 0, qNc, Nq, cStart, cEnd, cEndInterior, vStart, vEnd, v, field, fieldOffset; 995 PetscErrorCode ierr; 996 997 PetscFunctionBegin; 998 ierr = VecGetDM(locC, &dmC);CHKERRQ(ierr); 999 ierr = VecSet(locC, 0.0);CHKERRQ(ierr); 1000 ierr = DMGetDimension(dm, &dim);CHKERRQ(ierr); 1001 ierr = DMGetCoordinateDim(dm, &coordDim);CHKERRQ(ierr); 1002 ierr = DMGetDefaultSection(dm, §ion);CHKERRQ(ierr); 1003 ierr = PetscSectionGetNumFields(section, &numFields);CHKERRQ(ierr); 1004 for (field = 0; field < numFields; ++field) { 1005 PetscObject obj; 1006 PetscClassId id; 1007 PetscInt Nc; 1008 1009 ierr = DMGetField(dm, field, &obj);CHKERRQ(ierr); 1010 ierr = PetscObjectGetClassId(obj, &id);CHKERRQ(ierr); 1011 if (id == PETSCFE_CLASSID) { 1012 PetscFE fe = (PetscFE) obj; 1013 1014 ierr = PetscFEGetQuadrature(fe, &quad);CHKERRQ(ierr); 1015 ierr = PetscFEGetNumComponents(fe, &Nc);CHKERRQ(ierr); 1016 } else if (id == PETSCFV_CLASSID) { 1017 PetscFV fv = (PetscFV) obj; 1018 1019 ierr = PetscFVGetQuadrature(fv, &quad);CHKERRQ(ierr); 1020 ierr = PetscFVGetNumComponents(fv, &Nc);CHKERRQ(ierr); 1021 } else SETERRQ1(PetscObjectComm((PetscObject)dm), PETSC_ERR_ARG_WRONG, "Unknown discretization type for field %d", field); 1022 numComponents += Nc; 1023 } 1024 ierr = PetscQuadratureGetData(quad, NULL, &qNc, &Nq, &quadPoints, &quadWeights);CHKERRQ(ierr); 1025 if ((qNc != 1) && (qNc != numComponents)) SETERRQ2(PetscObjectComm((PetscObject) dm), PETSC_ERR_ARG_SIZ, "Quadrature components %D != %D field components", qNc, numComponents); 1026 ierr = PetscMalloc6(coordDim*numComponents*2,&gradsum,coordDim*numComponents,&interpolant,coordDim*Nq,&coords,Nq,&detJ,coordDim*coordDim*Nq,&J,coordDim*coordDim*Nq,&invJ);CHKERRQ(ierr); 1027 ierr = DMPlexGetDepthStratum(dm, 0, &vStart, &vEnd);CHKERRQ(ierr); 1028 ierr = DMPlexGetHeightStratum(dm, 0, &cStart, &cEnd);CHKERRQ(ierr); 1029 ierr = DMPlexGetHybridBounds(dm, &cEndInterior, NULL, NULL, NULL);CHKERRQ(ierr); 1030 cEnd = cEndInterior < 0 ? cEnd : cEndInterior; 1031 for (v = vStart; v < vEnd; ++v) { 1032 PetscScalar volsum = 0.0; 1033 PetscInt *star = NULL; 1034 PetscInt starSize, st, d, fc; 1035 1036 ierr = PetscMemzero(gradsum, coordDim*numComponents * sizeof(PetscScalar));CHKERRQ(ierr); 1037 ierr = DMPlexGetTransitiveClosure(dm, v, PETSC_FALSE, &starSize, &star);CHKERRQ(ierr); 1038 for (st = 0; st < starSize*2; st += 2) { 1039 const PetscInt cell = star[st]; 1040 PetscScalar *grad = &gradsum[coordDim*numComponents]; 1041 PetscScalar *x = NULL; 1042 PetscReal vol = 0.0; 1043 1044 if ((cell < cStart) || (cell >= cEnd)) continue; 1045 ierr = DMPlexComputeCellGeometryFEM(dm, cell, quad, coords, J, invJ, detJ);CHKERRQ(ierr); 1046 ierr = DMPlexVecGetClosure(dm, NULL, locX, cell, NULL, &x);CHKERRQ(ierr); 1047 for (field = 0, fieldOffset = 0; field < numFields; ++field) { 1048 PetscObject obj; 1049 PetscClassId id; 1050 PetscInt Nb, Nc, q, qc = 0; 1051 1052 ierr = PetscMemzero(grad, coordDim*numComponents * sizeof(PetscScalar));CHKERRQ(ierr); 1053 ierr = DMGetField(dm, field, &obj);CHKERRQ(ierr); 1054 ierr = PetscObjectGetClassId(obj, &id);CHKERRQ(ierr); 1055 if (id == PETSCFE_CLASSID) {ierr = PetscFEGetNumComponents((PetscFE) obj, &Nc);CHKERRQ(ierr);ierr = PetscFEGetDimension((PetscFE) obj, &Nb);CHKERRQ(ierr);} 1056 else if (id == PETSCFV_CLASSID) {ierr = PetscFVGetNumComponents((PetscFV) obj, &Nc);CHKERRQ(ierr);Nb = 1;} 1057 else SETERRQ1(PetscObjectComm((PetscObject)dm), PETSC_ERR_ARG_WRONG, "Unknown discretization type for field %d", field); 1058 for (q = 0; q < Nq; ++q) { 1059 if (detJ[q] <= 0.0) SETERRQ3(PETSC_COMM_SELF, PETSC_ERR_ARG_OUTOFRANGE, "Invalid determinant %g for element %D, quadrature points %D", (double)detJ[q], cell, q); 1060 if (ierr) { 1061 PetscErrorCode ierr2; 1062 ierr2 = DMPlexVecRestoreClosure(dm, NULL, locX, cell, NULL, &x);CHKERRQ(ierr2); 1063 ierr2 = DMPlexRestoreTransitiveClosure(dm, v, PETSC_FALSE, &starSize, &star);CHKERRQ(ierr2); 1064 ierr2 = PetscFree4(interpolant,coords,detJ,J);CHKERRQ(ierr2); 1065 CHKERRQ(ierr); 1066 } 1067 if (id == PETSCFE_CLASSID) {ierr = PetscFEInterpolateGradient_Static((PetscFE) obj, &x[fieldOffset], coordDim, invJ, NULL, q, interpolant);CHKERRQ(ierr);} 1068 else SETERRQ1(PetscObjectComm((PetscObject)dm), PETSC_ERR_ARG_WRONG, "Unknown discretization type for field %d", field); 1069 for (fc = 0; fc < Nc; ++fc) { 1070 const PetscReal wt = quadWeights[q*qNc+qc+fc]; 1071 1072 for (d = 0; d < coordDim; ++d) grad[fc*coordDim+d] += interpolant[fc*dim+d]*wt*detJ[q]; 1073 } 1074 vol += quadWeights[q*qNc]*detJ[q]; 1075 } 1076 fieldOffset += Nb; 1077 qc += Nc; 1078 } 1079 ierr = DMPlexVecRestoreClosure(dm, NULL, locX, cell, NULL, &x);CHKERRQ(ierr); 1080 for (fc = 0; fc < numComponents; ++fc) { 1081 for (d = 0; d < coordDim; ++d) { 1082 gradsum[fc*coordDim+d] += grad[fc*coordDim+d]; 1083 } 1084 } 1085 volsum += vol; 1086 if (debug) { 1087 ierr = PetscPrintf(PETSC_COMM_SELF, "Cell %d gradient: [", cell);CHKERRQ(ierr); 1088 for (fc = 0; fc < numComponents; ++fc) { 1089 for (d = 0; d < coordDim; ++d) { 1090 if (fc || d > 0) {ierr = PetscPrintf(PETSC_COMM_SELF, ", ");CHKERRQ(ierr);} 1091 ierr = PetscPrintf(PETSC_COMM_SELF, "%g", grad[fc*coordDim+d]);CHKERRQ(ierr); 1092 } 1093 } 1094 ierr = PetscPrintf(PETSC_COMM_SELF, "]\n");CHKERRQ(ierr); 1095 } 1096 } 1097 for (fc = 0; fc < numComponents; ++fc) { 1098 for (d = 0; d < coordDim; ++d) gradsum[fc*coordDim+d] /= volsum; 1099 } 1100 ierr = DMPlexRestoreTransitiveClosure(dm, v, PETSC_FALSE, &starSize, &star);CHKERRQ(ierr); 1101 ierr = DMPlexVecSetClosure(dmC, NULL, locC, v, gradsum, INSERT_VALUES);CHKERRQ(ierr); 1102 } 1103 ierr = PetscFree6(gradsum,interpolant,coords,detJ,J,invJ);CHKERRQ(ierr); 1104 PetscFunctionReturn(0); 1105 } 1106 1107 /*@ 1108 DMPlexComputeIntegralFEM - Form the local integral F from the local input X using pointwise functions specified by the user 1109 1110 Input Parameters: 1111 + dm - The mesh 1112 . X - Local input vector 1113 - user - The user context 1114 1115 Output Parameter: 1116 . integral - Local integral for each field 1117 1118 Level: developer 1119 1120 .seealso: DMPlexComputeResidualFEM() 1121 @*/ 1122 PetscErrorCode DMPlexComputeIntegralFEM(DM dm, Vec X, PetscReal *integral, void *user) 1123 { 1124 DM_Plex *mesh = (DM_Plex *) dm->data; 1125 DM dmAux, dmGrad; 1126 Vec localX, A, cellGeometryFVM = NULL, faceGeometryFVM = NULL, locGrad = NULL; 1127 PetscDS prob, probAux = NULL; 1128 PetscSection section, sectionAux; 1129 PetscFV fvm = NULL; 1130 PetscFECellGeom *cgeomFEM; 1131 PetscFVFaceGeom *fgeomFVM; 1132 PetscFVCellGeom *cgeomFVM; 1133 PetscScalar *u, *a = NULL; 1134 const PetscScalar *constants, *lgrad; 1135 PetscReal *lintegral; 1136 PetscInt *uOff, *uOff_x, *aOff = NULL; 1137 PetscInt dim, numConstants, Nf, NfAux = 0, f, numCells, cStart, cEnd, cEndInterior, c; 1138 PetscInt totDim, totDimAux; 1139 PetscBool useFVM = PETSC_FALSE; 1140 PetscErrorCode ierr; 1141 1142 PetscFunctionBegin; 1143 ierr = PetscLogEventBegin(DMPLEX_IntegralFEM,dm,0,0,0);CHKERRQ(ierr); 1144 ierr = DMGetLocalVector(dm, &localX);CHKERRQ(ierr); 1145 ierr = DMPlexInsertBoundaryValues(dm, PETSC_TRUE, localX, 0.0, NULL, NULL, NULL);CHKERRQ(ierr); 1146 ierr = DMGlobalToLocalBegin(dm, X, INSERT_VALUES, localX);CHKERRQ(ierr); 1147 ierr = DMGlobalToLocalEnd(dm, X, INSERT_VALUES, localX);CHKERRQ(ierr); 1148 ierr = DMGetDimension(dm, &dim);CHKERRQ(ierr); 1149 ierr = DMGetDefaultSection(dm, §ion);CHKERRQ(ierr); 1150 ierr = DMGetDS(dm, &prob);CHKERRQ(ierr); 1151 ierr = PetscDSGetTotalDimension(prob, &totDim);CHKERRQ(ierr); 1152 ierr = PetscDSGetComponentOffsets(prob, &uOff);CHKERRQ(ierr); 1153 ierr = PetscDSGetComponentDerivativeOffsets(prob, &uOff_x);CHKERRQ(ierr); 1154 ierr = PetscDSGetConstants(prob, &numConstants, &constants);CHKERRQ(ierr); 1155 ierr = PetscSectionGetNumFields(section, &Nf);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 numCells = cEnd - cStart; 1160 ierr = PetscObjectQuery((PetscObject) dm, "dmAux", (PetscObject *) &dmAux);CHKERRQ(ierr); 1161 ierr = PetscObjectQuery((PetscObject) dm, "A", (PetscObject *) &A);CHKERRQ(ierr); 1162 if (dmAux) { 1163 ierr = DMGetDS(dmAux, &probAux);CHKERRQ(ierr); 1164 ierr = PetscDSGetNumFields(probAux, &NfAux);CHKERRQ(ierr); 1165 ierr = DMGetDefaultSection(dmAux, §ionAux);CHKERRQ(ierr); 1166 ierr = PetscDSGetTotalDimension(probAux, &totDimAux);CHKERRQ(ierr); 1167 ierr = PetscDSGetComponentOffsets(probAux, &aOff);CHKERRQ(ierr); 1168 ierr = PetscDSGetEvaluationArrays(probAux, &a, NULL, NULL);CHKERRQ(ierr); 1169 } 1170 for (f = 0; f < Nf; ++f) { 1171 PetscObject obj; 1172 PetscClassId id; 1173 1174 ierr = PetscDSGetDiscretization(prob, f, &obj);CHKERRQ(ierr); 1175 ierr = PetscObjectGetClassId(obj, &id);CHKERRQ(ierr); 1176 if (id == PETSCFV_CLASSID) {useFVM = PETSC_TRUE; fvm = (PetscFV) obj;} 1177 } 1178 if (useFVM) { 1179 Vec grad; 1180 PetscInt fStart, fEnd; 1181 PetscBool compGrad; 1182 1183 ierr = PetscFVGetComputeGradients(fvm, &compGrad);CHKERRQ(ierr); 1184 ierr = PetscFVSetComputeGradients(fvm, PETSC_TRUE);CHKERRQ(ierr); 1185 ierr = DMPlexComputeGeometryFVM(dm, &cellGeometryFVM, &faceGeometryFVM);CHKERRQ(ierr); 1186 ierr = DMPlexComputeGradientFVM(dm, fvm, faceGeometryFVM, cellGeometryFVM, &dmGrad);CHKERRQ(ierr); 1187 ierr = PetscFVSetComputeGradients(fvm, compGrad);CHKERRQ(ierr); 1188 ierr = VecGetArrayRead(faceGeometryFVM, (const PetscScalar **) &fgeomFVM);CHKERRQ(ierr); 1189 ierr = VecGetArrayRead(cellGeometryFVM, (const PetscScalar **) &cgeomFVM);CHKERRQ(ierr); 1190 /* Reconstruct and limit cell gradients */ 1191 ierr = DMPlexGetHeightStratum(dm, 1, &fStart, &fEnd);CHKERRQ(ierr); 1192 ierr = DMGetGlobalVector(dmGrad, &grad);CHKERRQ(ierr); 1193 ierr = DMPlexReconstructGradients_Internal(dm, fvm, fStart, fEnd, faceGeometryFVM, cellGeometryFVM, localX, grad);CHKERRQ(ierr); 1194 /* Communicate gradient values */ 1195 ierr = DMGetLocalVector(dmGrad, &locGrad);CHKERRQ(ierr); 1196 ierr = DMGlobalToLocalBegin(dmGrad, grad, INSERT_VALUES, locGrad);CHKERRQ(ierr); 1197 ierr = DMGlobalToLocalEnd(dmGrad, grad, INSERT_VALUES, locGrad);CHKERRQ(ierr); 1198 ierr = DMRestoreGlobalVector(dmGrad, &grad);CHKERRQ(ierr); 1199 /* Handle non-essential (e.g. outflow) boundary values */ 1200 ierr = DMPlexInsertBoundaryValues(dm, PETSC_FALSE, localX, 0.0, faceGeometryFVM, cellGeometryFVM, locGrad);CHKERRQ(ierr); 1201 ierr = VecGetArrayRead(locGrad, &lgrad);CHKERRQ(ierr); 1202 } 1203 ierr = PetscMalloc3(Nf,&lintegral,numCells*totDim,&u,numCells,&cgeomFEM);CHKERRQ(ierr); 1204 if (dmAux) {ierr = PetscMalloc1(numCells*totDimAux, &a);CHKERRQ(ierr);} 1205 for (f = 0; f < Nf; ++f) {lintegral[f] = 0.0;} 1206 for (c = cStart; c < cEnd; ++c) { 1207 PetscScalar *x = NULL; 1208 PetscInt i; 1209 1210 ierr = DMPlexComputeCellGeometryFEM(dm, c, NULL, cgeomFEM[c].v0, cgeomFEM[c].J, cgeomFEM[c].invJ, &cgeomFEM[c].detJ);CHKERRQ(ierr); 1211 if (cgeomFEM[c].detJ <= 0.0) SETERRQ2(PETSC_COMM_SELF, PETSC_ERR_ARG_OUTOFRANGE, "Invalid determinant %g for element %d", cgeomFEM[c].detJ, c); 1212 ierr = DMPlexVecGetClosure(dm, section, localX, c, NULL, &x);CHKERRQ(ierr); 1213 for (i = 0; i < totDim; ++i) u[c*totDim+i] = x[i]; 1214 ierr = DMPlexVecRestoreClosure(dm, section, localX, c, NULL, &x);CHKERRQ(ierr); 1215 if (dmAux) { 1216 ierr = DMPlexVecGetClosure(dmAux, sectionAux, A, c, NULL, &x);CHKERRQ(ierr); 1217 for (i = 0; i < totDimAux; ++i) a[c*totDimAux+i] = x[i]; 1218 ierr = DMPlexVecRestoreClosure(dmAux, sectionAux, A, c, NULL, &x);CHKERRQ(ierr); 1219 } 1220 } 1221 for (f = 0; f < Nf; ++f) { 1222 PetscObject obj; 1223 PetscClassId id; 1224 PetscInt numChunks, numBatches, batchSize, numBlocks, blockSize, Ne, Nr, offset; 1225 1226 ierr = PetscDSGetDiscretization(prob, f, &obj);CHKERRQ(ierr); 1227 ierr = PetscObjectGetClassId(obj, &id);CHKERRQ(ierr); 1228 if (id == PETSCFE_CLASSID) { 1229 PetscFE fe = (PetscFE) obj; 1230 PetscQuadrature q; 1231 PetscInt Nq, Nb; 1232 1233 ierr = PetscFEGetTileSizes(fe, NULL, &numBlocks, NULL, &numBatches);CHKERRQ(ierr); 1234 ierr = PetscFEGetQuadrature(fe, &q);CHKERRQ(ierr); 1235 ierr = PetscQuadratureGetData(q, NULL, NULL, &Nq, NULL, NULL);CHKERRQ(ierr); 1236 ierr = PetscFEGetDimension(fe, &Nb);CHKERRQ(ierr); 1237 blockSize = Nb*Nq; 1238 batchSize = numBlocks * blockSize; 1239 ierr = PetscFESetTileSizes(fe, blockSize, numBlocks, batchSize, numBatches);CHKERRQ(ierr); 1240 numChunks = numCells / (numBatches*batchSize); 1241 Ne = numChunks*numBatches*batchSize; 1242 Nr = numCells % (numBatches*batchSize); 1243 offset = numCells - Nr; 1244 ierr = PetscFEIntegrate(fe, prob, f, Ne, cgeomFEM, u, probAux, a, lintegral);CHKERRQ(ierr); 1245 ierr = PetscFEIntegrate(fe, prob, f, Nr, &cgeomFEM[offset], &u[offset*totDim], probAux, &a[offset*totDimAux], lintegral);CHKERRQ(ierr); 1246 } else if (id == PETSCFV_CLASSID) { 1247 /* PetscFV fv = (PetscFV) obj; */ 1248 PetscInt foff; 1249 PetscPointFunc obj_func; 1250 PetscScalar lint; 1251 1252 ierr = PetscDSGetObjective(prob, f, &obj_func);CHKERRQ(ierr); 1253 ierr = PetscDSGetFieldOffset(prob, f, &foff);CHKERRQ(ierr); 1254 if (obj_func) { 1255 for (c = 0; c < numCells; ++c) { 1256 PetscScalar *u_x; 1257 1258 ierr = DMPlexPointLocalRead(dmGrad, c, lgrad, &u_x);CHKERRQ(ierr); 1259 obj_func(dim, Nf, NfAux, uOff, uOff_x, &u[totDim*c+foff], NULL, u_x, aOff, NULL, a, NULL, NULL, 0.0, cgeomFVM[c].centroid, numConstants, constants, &lint); 1260 lintegral[f] += PetscRealPart(lint)*cgeomFVM[c].volume; 1261 } 1262 } 1263 } else SETERRQ1(PetscObjectComm((PetscObject) dm), PETSC_ERR_ARG_WRONG, "Unknown discretization type for field %d", f); 1264 } 1265 if (useFVM) { 1266 ierr = VecRestoreArrayRead(locGrad, &lgrad);CHKERRQ(ierr); 1267 ierr = VecRestoreArrayRead(faceGeometryFVM, (const PetscScalar **) &fgeomFVM);CHKERRQ(ierr); 1268 ierr = VecRestoreArrayRead(cellGeometryFVM, (const PetscScalar **) &cgeomFVM);CHKERRQ(ierr); 1269 ierr = DMRestoreLocalVector(dmGrad, &locGrad);CHKERRQ(ierr); 1270 ierr = VecDestroy(&faceGeometryFVM);CHKERRQ(ierr); 1271 ierr = VecDestroy(&cellGeometryFVM);CHKERRQ(ierr); 1272 ierr = DMDestroy(&dmGrad);CHKERRQ(ierr); 1273 } 1274 if (dmAux) {ierr = PetscFree(a);CHKERRQ(ierr);} 1275 if (mesh->printFEM) { 1276 ierr = PetscPrintf(PetscObjectComm((PetscObject) dm), "Local integral:");CHKERRQ(ierr); 1277 for (f = 0; f < Nf; ++f) {ierr = PetscPrintf(PetscObjectComm((PetscObject) dm), " %g", lintegral[f]);CHKERRQ(ierr);} 1278 ierr = PetscPrintf(PetscObjectComm((PetscObject) dm), "\n");CHKERRQ(ierr); 1279 } 1280 ierr = DMRestoreLocalVector(dm, &localX);CHKERRQ(ierr); 1281 ierr = MPIU_Allreduce(lintegral, integral, Nf, MPIU_REAL, MPIU_SUM, PetscObjectComm((PetscObject) dm));CHKERRQ(ierr); 1282 ierr = PetscFree3(lintegral,u,cgeomFEM);CHKERRQ(ierr); 1283 ierr = PetscLogEventEnd(DMPLEX_IntegralFEM,dm,0,0,0);CHKERRQ(ierr); 1284 PetscFunctionReturn(0); 1285 } 1286 1287 /*@ 1288 DMPlexComputeInterpolatorNested - Form the local portion of the interpolation matrix I from the coarse DM to the uniformly refined DM. 1289 1290 Input Parameters: 1291 + dmf - The fine mesh 1292 . dmc - The coarse mesh 1293 - user - The user context 1294 1295 Output Parameter: 1296 . In - The interpolation matrix 1297 1298 Level: developer 1299 1300 .seealso: DMPlexComputeInterpolatorGeneral(), DMPlexComputeJacobianFEM() 1301 @*/ 1302 PetscErrorCode DMPlexComputeInterpolatorNested(DM dmc, DM dmf, Mat In, void *user) 1303 { 1304 DM_Plex *mesh = (DM_Plex *) dmc->data; 1305 const char *name = "Interpolator"; 1306 PetscDS prob; 1307 PetscFE *feRef; 1308 PetscFV *fvRef; 1309 PetscSection fsection, fglobalSection; 1310 PetscSection csection, cglobalSection; 1311 PetscScalar *elemMat; 1312 PetscInt dim, Nf, f, fieldI, fieldJ, offsetI, offsetJ, cStart, cEnd, cEndInterior, c; 1313 PetscInt cTotDim, rTotDim = 0; 1314 PetscErrorCode ierr; 1315 1316 PetscFunctionBegin; 1317 ierr = PetscLogEventBegin(DMPLEX_InterpolatorFEM,dmc,dmf,0,0);CHKERRQ(ierr); 1318 ierr = DMGetDimension(dmf, &dim);CHKERRQ(ierr); 1319 ierr = DMGetDefaultSection(dmf, &fsection);CHKERRQ(ierr); 1320 ierr = DMGetDefaultGlobalSection(dmf, &fglobalSection);CHKERRQ(ierr); 1321 ierr = DMGetDefaultSection(dmc, &csection);CHKERRQ(ierr); 1322 ierr = DMGetDefaultGlobalSection(dmc, &cglobalSection);CHKERRQ(ierr); 1323 ierr = PetscSectionGetNumFields(fsection, &Nf);CHKERRQ(ierr); 1324 ierr = DMPlexGetHeightStratum(dmc, 0, &cStart, &cEnd);CHKERRQ(ierr); 1325 ierr = DMPlexGetHybridBounds(dmc, &cEndInterior, NULL, NULL, NULL);CHKERRQ(ierr); 1326 cEnd = cEndInterior < 0 ? cEnd : cEndInterior; 1327 ierr = DMGetDS(dmf, &prob);CHKERRQ(ierr); 1328 ierr = PetscCalloc2(Nf,&feRef,Nf,&fvRef);CHKERRQ(ierr); 1329 for (f = 0; f < Nf; ++f) { 1330 PetscObject obj; 1331 PetscClassId id; 1332 PetscInt rNb = 0, Nc = 0; 1333 1334 ierr = PetscDSGetDiscretization(prob, f, &obj);CHKERRQ(ierr); 1335 ierr = PetscObjectGetClassId(obj, &id);CHKERRQ(ierr); 1336 if (id == PETSCFE_CLASSID) { 1337 PetscFE fe = (PetscFE) obj; 1338 1339 ierr = PetscFERefine(fe, &feRef[f]);CHKERRQ(ierr); 1340 ierr = PetscFEGetDimension(feRef[f], &rNb);CHKERRQ(ierr); 1341 ierr = PetscFEGetNumComponents(fe, &Nc);CHKERRQ(ierr); 1342 } else if (id == PETSCFV_CLASSID) { 1343 PetscFV fv = (PetscFV) obj; 1344 PetscDualSpace Q; 1345 1346 ierr = PetscFVRefine(fv, &fvRef[f]);CHKERRQ(ierr); 1347 ierr = PetscFVGetDualSpace(fvRef[f], &Q);CHKERRQ(ierr); 1348 ierr = PetscDualSpaceGetDimension(Q, &rNb);CHKERRQ(ierr); 1349 ierr = PetscFVGetNumComponents(fv, &Nc);CHKERRQ(ierr); 1350 } 1351 rTotDim += rNb; 1352 } 1353 ierr = PetscDSGetTotalDimension(prob, &cTotDim);CHKERRQ(ierr); 1354 ierr = PetscMalloc1(rTotDim*cTotDim,&elemMat);CHKERRQ(ierr); 1355 ierr = PetscMemzero(elemMat, rTotDim*cTotDim * sizeof(PetscScalar));CHKERRQ(ierr); 1356 for (fieldI = 0, offsetI = 0; fieldI < Nf; ++fieldI) { 1357 PetscDualSpace Qref; 1358 PetscQuadrature f; 1359 const PetscReal *qpoints, *qweights; 1360 PetscReal *points; 1361 PetscInt npoints = 0, Nc, Np, fpdim, i, k, p, d; 1362 1363 /* Compose points from all dual basis functionals */ 1364 if (feRef[fieldI]) { 1365 ierr = PetscFEGetDualSpace(feRef[fieldI], &Qref);CHKERRQ(ierr); 1366 ierr = PetscFEGetNumComponents(feRef[fieldI], &Nc);CHKERRQ(ierr); 1367 } else { 1368 ierr = PetscFVGetDualSpace(fvRef[fieldI], &Qref);CHKERRQ(ierr); 1369 ierr = PetscFVGetNumComponents(fvRef[fieldI], &Nc);CHKERRQ(ierr); 1370 } 1371 ierr = PetscDualSpaceGetDimension(Qref, &fpdim);CHKERRQ(ierr); 1372 for (i = 0; i < fpdim; ++i) { 1373 ierr = PetscDualSpaceGetFunctional(Qref, i, &f);CHKERRQ(ierr); 1374 ierr = PetscQuadratureGetData(f, NULL, NULL, &Np, NULL, NULL);CHKERRQ(ierr); 1375 npoints += Np; 1376 } 1377 ierr = PetscMalloc1(npoints*dim,&points);CHKERRQ(ierr); 1378 for (i = 0, k = 0; i < fpdim; ++i) { 1379 ierr = PetscDualSpaceGetFunctional(Qref, i, &f);CHKERRQ(ierr); 1380 ierr = PetscQuadratureGetData(f, NULL, NULL, &Np, &qpoints, NULL);CHKERRQ(ierr); 1381 for (p = 0; p < Np; ++p, ++k) for (d = 0; d < dim; ++d) points[k*dim+d] = qpoints[p*dim+d]; 1382 } 1383 1384 for (fieldJ = 0, offsetJ = 0; fieldJ < Nf; ++fieldJ) { 1385 PetscObject obj; 1386 PetscClassId id; 1387 PetscReal *B; 1388 PetscInt NcJ = 0, cpdim = 0, j, qNc; 1389 1390 ierr = PetscDSGetDiscretization(prob, fieldJ, &obj);CHKERRQ(ierr); 1391 ierr = PetscObjectGetClassId(obj, &id);CHKERRQ(ierr); 1392 if (id == PETSCFE_CLASSID) { 1393 PetscFE fe = (PetscFE) obj; 1394 1395 /* Evaluate basis at points */ 1396 ierr = PetscFEGetNumComponents(fe, &NcJ);CHKERRQ(ierr); 1397 ierr = PetscFEGetDimension(fe, &cpdim);CHKERRQ(ierr); 1398 /* For now, fields only interpolate themselves */ 1399 if (fieldI == fieldJ) { 1400 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); 1401 ierr = PetscFEGetTabulation(fe, npoints, points, &B, NULL, NULL);CHKERRQ(ierr); 1402 for (i = 0, k = 0; i < fpdim; ++i) { 1403 ierr = PetscDualSpaceGetFunctional(Qref, i, &f);CHKERRQ(ierr); 1404 ierr = PetscQuadratureGetData(f, NULL, &qNc, &Np, NULL, &qweights);CHKERRQ(ierr); 1405 if (qNc != NcJ) SETERRQ2(PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "Number of components in quadrature %D does not match coarse field %D", qNc, NcJ); 1406 for (p = 0; p < Np; ++p, ++k) { 1407 for (j = 0; j < cpdim; ++j) { 1408 /* NOTE: This is not quite right, unless fpdim == number of fine grid functional quad points */ 1409 for (c = 0; c < Nc; ++c) elemMat[(offsetI + i)*cTotDim + offsetJ + j] += B[k*cpdim*NcJ+j*Nc+c]*qweights[p*qNc+c]; 1410 } 1411 } 1412 } 1413 ierr = PetscFERestoreTabulation(fe, npoints, points, &B, NULL, NULL);CHKERRQ(ierr);CHKERRQ(ierr); 1414 } 1415 } else if (id == PETSCFV_CLASSID) { 1416 PetscFV fv = (PetscFV) obj; 1417 1418 /* Evaluate constant function at points */ 1419 ierr = PetscFVGetNumComponents(fv, &NcJ);CHKERRQ(ierr); 1420 cpdim = 1; 1421 /* For now, fields only interpolate themselves */ 1422 if (fieldI == fieldJ) { 1423 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); 1424 for (i = 0, k = 0; i < fpdim; ++i) { 1425 ierr = PetscDualSpaceGetFunctional(Qref, i, &f);CHKERRQ(ierr); 1426 ierr = PetscQuadratureGetData(f, NULL, &qNc, &Np, NULL, &qweights);CHKERRQ(ierr); 1427 if (qNc != NcJ) SETERRQ2(PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "Number of components in quadrature %D does not match coarse field %D", qNc, NcJ); 1428 for (p = 0; p < Np; ++p, ++k) { 1429 for (j = 0; j < cpdim; ++j) { 1430 for (c = 0; c < Nc; ++c) elemMat[(offsetI + i*Nc + c)*cTotDim + offsetJ + j*NcJ + c] += 1.0*qweights[p*qNc+c]; 1431 } 1432 } 1433 } 1434 } 1435 } 1436 offsetJ += cpdim*NcJ; 1437 } 1438 offsetI += fpdim*Nc; 1439 ierr = PetscFree(points);CHKERRQ(ierr); 1440 } 1441 if (mesh->printFEM > 1) {ierr = DMPrintCellMatrix(0, name, rTotDim, cTotDim, elemMat);CHKERRQ(ierr);} 1442 /* Preallocate matrix */ 1443 { 1444 Mat preallocator; 1445 PetscScalar *vals; 1446 PetscInt *cellCIndices, *cellFIndices; 1447 PetscInt locRows, locCols, cell; 1448 1449 ierr = MatGetLocalSize(In, &locRows, &locCols);CHKERRQ(ierr); 1450 ierr = MatCreate(PetscObjectComm((PetscObject) In), &preallocator);CHKERRQ(ierr); 1451 ierr = MatSetType(preallocator, MATPREALLOCATOR);CHKERRQ(ierr); 1452 ierr = MatSetSizes(preallocator, locRows, locCols, PETSC_DETERMINE, PETSC_DETERMINE);CHKERRQ(ierr); 1453 ierr = MatSetUp(preallocator);CHKERRQ(ierr); 1454 ierr = PetscCalloc3(rTotDim*cTotDim, &vals,cTotDim,&cellCIndices,rTotDim,&cellFIndices);CHKERRQ(ierr); 1455 for (cell = cStart; cell < cEnd; ++cell) { 1456 ierr = DMPlexMatGetClosureIndicesRefined(dmf, fsection, fglobalSection, dmc, csection, cglobalSection, cell, cellCIndices, cellFIndices);CHKERRQ(ierr); 1457 ierr = MatSetValues(preallocator, rTotDim, cellFIndices, cTotDim, cellCIndices, vals, INSERT_VALUES);CHKERRQ(ierr); 1458 } 1459 ierr = PetscFree3(vals,cellCIndices,cellFIndices);CHKERRQ(ierr); 1460 ierr = MatAssemblyBegin(preallocator, MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 1461 ierr = MatAssemblyEnd(preallocator, MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 1462 ierr = MatPreallocatorPreallocate(preallocator, PETSC_TRUE, In);CHKERRQ(ierr); 1463 ierr = MatDestroy(&preallocator);CHKERRQ(ierr); 1464 } 1465 /* Fill matrix */ 1466 ierr = MatZeroEntries(In);CHKERRQ(ierr); 1467 for (c = cStart; c < cEnd; ++c) { 1468 ierr = DMPlexMatSetClosureRefined(dmf, fsection, fglobalSection, dmc, csection, cglobalSection, In, c, elemMat, INSERT_VALUES);CHKERRQ(ierr); 1469 } 1470 for (f = 0; f < Nf; ++f) {ierr = PetscFEDestroy(&feRef[f]);CHKERRQ(ierr);} 1471 ierr = PetscFree2(feRef,fvRef);CHKERRQ(ierr); 1472 ierr = PetscFree(elemMat);CHKERRQ(ierr); 1473 ierr = MatAssemblyBegin(In, MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 1474 ierr = MatAssemblyEnd(In, MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 1475 if (mesh->printFEM) { 1476 ierr = PetscPrintf(PETSC_COMM_WORLD, "%s:\n", name);CHKERRQ(ierr); 1477 ierr = MatChop(In, 1.0e-10);CHKERRQ(ierr); 1478 ierr = MatView(In, PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr); 1479 } 1480 ierr = PetscLogEventEnd(DMPLEX_InterpolatorFEM,dmc,dmf,0,0);CHKERRQ(ierr); 1481 PetscFunctionReturn(0); 1482 } 1483 1484 /*@ 1485 DMPlexComputeInterpolatorGeneral - Form the local portion of the interpolation matrix I from the coarse DM to a non-nested fine DM. 1486 1487 Input Parameters: 1488 + dmf - The fine mesh 1489 . dmc - The coarse mesh 1490 - user - The user context 1491 1492 Output Parameter: 1493 . In - The interpolation matrix 1494 1495 Level: developer 1496 1497 .seealso: DMPlexComputeInterpolatorNested(), DMPlexComputeJacobianFEM() 1498 @*/ 1499 PetscErrorCode DMPlexComputeInterpolatorGeneral(DM dmc, DM dmf, Mat In, void *user) 1500 { 1501 DM_Plex *mesh = (DM_Plex *) dmf->data; 1502 const char *name = "Interpolator"; 1503 PetscDS prob; 1504 PetscSection fsection, csection, globalFSection, globalCSection; 1505 PetscHashJK ht; 1506 PetscLayout rLayout; 1507 PetscInt *dnz, *onz; 1508 PetscInt locRows, rStart, rEnd; 1509 PetscReal *x, *v0, *J, *invJ, detJ; 1510 PetscReal *v0c, *Jc, *invJc, detJc; 1511 PetscScalar *elemMat; 1512 PetscInt dim, Nf, field, totDim, cStart, cEnd, cell, ccell; 1513 PetscErrorCode ierr; 1514 1515 PetscFunctionBegin; 1516 ierr = PetscLogEventBegin(DMPLEX_InterpolatorFEM,dmc,dmf,0,0);CHKERRQ(ierr); 1517 ierr = DMGetCoordinateDim(dmc, &dim);CHKERRQ(ierr); 1518 ierr = DMGetDS(dmc, &prob);CHKERRQ(ierr); 1519 ierr = PetscDSGetRefCoordArrays(prob, &x, NULL);CHKERRQ(ierr); 1520 ierr = PetscDSGetNumFields(prob, &Nf);CHKERRQ(ierr); 1521 ierr = PetscMalloc3(dim,&v0,dim*dim,&J,dim*dim,&invJ);CHKERRQ(ierr); 1522 ierr = PetscMalloc3(dim,&v0c,dim*dim,&Jc,dim*dim,&invJc);CHKERRQ(ierr); 1523 ierr = DMGetDefaultSection(dmf, &fsection);CHKERRQ(ierr); 1524 ierr = DMGetDefaultGlobalSection(dmf, &globalFSection);CHKERRQ(ierr); 1525 ierr = DMGetDefaultSection(dmc, &csection);CHKERRQ(ierr); 1526 ierr = DMGetDefaultGlobalSection(dmc, &globalCSection);CHKERRQ(ierr); 1527 ierr = DMPlexGetHeightStratum(dmf, 0, &cStart, &cEnd);CHKERRQ(ierr); 1528 ierr = PetscDSGetTotalDimension(prob, &totDim);CHKERRQ(ierr); 1529 ierr = PetscMalloc1(totDim, &elemMat);CHKERRQ(ierr); 1530 1531 ierr = MatGetLocalSize(In, &locRows, NULL);CHKERRQ(ierr); 1532 ierr = PetscLayoutCreate(PetscObjectComm((PetscObject) In), &rLayout);CHKERRQ(ierr); 1533 ierr = PetscLayoutSetLocalSize(rLayout, locRows);CHKERRQ(ierr); 1534 ierr = PetscLayoutSetBlockSize(rLayout, 1);CHKERRQ(ierr); 1535 ierr = PetscLayoutSetUp(rLayout);CHKERRQ(ierr); 1536 ierr = PetscLayoutGetRange(rLayout, &rStart, &rEnd);CHKERRQ(ierr); 1537 ierr = PetscLayoutDestroy(&rLayout);CHKERRQ(ierr); 1538 ierr = PetscCalloc2(locRows,&dnz,locRows,&onz);CHKERRQ(ierr); 1539 ierr = PetscHashJKCreate(&ht);CHKERRQ(ierr); 1540 for (field = 0; field < Nf; ++field) { 1541 PetscObject obj; 1542 PetscClassId id; 1543 PetscDualSpace Q = NULL; 1544 PetscQuadrature f; 1545 const PetscReal *qpoints; 1546 PetscInt Nc, Np, fpdim, i, d; 1547 1548 ierr = PetscDSGetDiscretization(prob, field, &obj);CHKERRQ(ierr); 1549 ierr = PetscObjectGetClassId(obj, &id);CHKERRQ(ierr); 1550 if (id == PETSCFE_CLASSID) { 1551 PetscFE fe = (PetscFE) obj; 1552 1553 ierr = PetscFEGetDualSpace(fe, &Q);CHKERRQ(ierr); 1554 ierr = PetscFEGetNumComponents(fe, &Nc);CHKERRQ(ierr); 1555 } else if (id == PETSCFV_CLASSID) { 1556 PetscFV fv = (PetscFV) obj; 1557 1558 ierr = PetscFVGetDualSpace(fv, &Q);CHKERRQ(ierr); 1559 Nc = 1; 1560 } 1561 ierr = PetscDualSpaceGetDimension(Q, &fpdim);CHKERRQ(ierr); 1562 /* For each fine grid cell */ 1563 for (cell = cStart; cell < cEnd; ++cell) { 1564 PetscInt *findices, *cindices; 1565 PetscInt numFIndices, numCIndices; 1566 1567 ierr = DMPlexGetClosureIndices(dmf, fsection, globalFSection, cell, &numFIndices, &findices, NULL);CHKERRQ(ierr); 1568 ierr = DMPlexComputeCellGeometryFEM(dmf, cell, NULL, v0, J, invJ, &detJ);CHKERRQ(ierr); 1569 if (numFIndices != fpdim) SETERRQ2(PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "Number of fine indices %d != %d dual basis vecs", numFIndices, fpdim); 1570 for (i = 0; i < fpdim; ++i) { 1571 Vec pointVec; 1572 PetscScalar *pV; 1573 PetscSF coarseCellSF = NULL; 1574 const PetscSFNode *coarseCells; 1575 PetscInt numCoarseCells, q, c; 1576 1577 /* Get points from the dual basis functional quadrature */ 1578 ierr = PetscDualSpaceGetFunctional(Q, i, &f);CHKERRQ(ierr); 1579 ierr = PetscQuadratureGetData(f, NULL, NULL, &Np, &qpoints, NULL);CHKERRQ(ierr); 1580 ierr = VecCreateSeq(PETSC_COMM_SELF, Np*dim, &pointVec);CHKERRQ(ierr); 1581 ierr = VecSetBlockSize(pointVec, dim);CHKERRQ(ierr); 1582 ierr = VecGetArray(pointVec, &pV);CHKERRQ(ierr); 1583 for (q = 0; q < Np; ++q) { 1584 /* Transform point to real space */ 1585 CoordinatesRefToReal(dim, dim, v0, J, &qpoints[q*dim], x); 1586 for (d = 0; d < dim; ++d) pV[q*dim+d] = x[d]; 1587 } 1588 ierr = VecRestoreArray(pointVec, &pV);CHKERRQ(ierr); 1589 /* Get set of coarse cells that overlap points (would like to group points by coarse cell) */ 1590 /* OPT: Pack all quad points from fine cell */ 1591 ierr = DMLocatePoints(dmc, pointVec, DM_POINTLOCATION_NEAREST, &coarseCellSF);CHKERRQ(ierr); 1592 ierr = PetscSFViewFromOptions(coarseCellSF, NULL, "-interp_sf_view");CHKERRQ(ierr); 1593 /* Update preallocation info */ 1594 ierr = PetscSFGetGraph(coarseCellSF, NULL, &numCoarseCells, NULL, &coarseCells);CHKERRQ(ierr); 1595 if (numCoarseCells != Np) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_PLIB,"Not all closure points located"); 1596 { 1597 PetscHashJKKey key; 1598 PetscHashJKIter missing, iter; 1599 1600 key.j = findices[i]; 1601 if (key.j >= 0) { 1602 /* Get indices for coarse elements */ 1603 for (ccell = 0; ccell < numCoarseCells; ++ccell) { 1604 ierr = DMPlexGetClosureIndices(dmc, csection, globalCSection, coarseCells[ccell].index, &numCIndices, &cindices, NULL);CHKERRQ(ierr); 1605 for (c = 0; c < numCIndices; ++c) { 1606 key.k = cindices[c]; 1607 if (key.k < 0) continue; 1608 ierr = PetscHashJKPut(ht, key, &missing, &iter);CHKERRQ(ierr); 1609 if (missing) { 1610 ierr = PetscHashJKSet(ht, iter, 1);CHKERRQ(ierr); 1611 if ((key.k >= rStart) && (key.k < rEnd)) ++dnz[key.j-rStart]; 1612 else ++onz[key.j-rStart]; 1613 } 1614 } 1615 ierr = DMPlexRestoreClosureIndices(dmc, csection, globalCSection, coarseCells[ccell].index, &numCIndices, &cindices, NULL);CHKERRQ(ierr); 1616 } 1617 } 1618 } 1619 ierr = PetscSFDestroy(&coarseCellSF);CHKERRQ(ierr); 1620 ierr = VecDestroy(&pointVec);CHKERRQ(ierr); 1621 } 1622 ierr = DMPlexRestoreClosureIndices(dmf, fsection, globalFSection, cell, &numFIndices, &findices, NULL);CHKERRQ(ierr); 1623 } 1624 } 1625 ierr = PetscHashJKDestroy(&ht);CHKERRQ(ierr); 1626 ierr = MatXAIJSetPreallocation(In, 1, dnz, onz, NULL, NULL);CHKERRQ(ierr); 1627 ierr = MatSetOption(In, MAT_NEW_NONZERO_ALLOCATION_ERR,PETSC_TRUE);CHKERRQ(ierr); 1628 ierr = PetscFree2(dnz,onz);CHKERRQ(ierr); 1629 for (field = 0; field < Nf; ++field) { 1630 PetscObject obj; 1631 PetscClassId id; 1632 PetscDualSpace Q = NULL; 1633 PetscQuadrature f; 1634 const PetscReal *qpoints, *qweights; 1635 PetscInt Nc, qNc, Np, fpdim, i, d; 1636 1637 ierr = PetscDSGetDiscretization(prob, field, &obj);CHKERRQ(ierr); 1638 ierr = PetscObjectGetClassId(obj, &id);CHKERRQ(ierr); 1639 if (id == PETSCFE_CLASSID) { 1640 PetscFE fe = (PetscFE) obj; 1641 1642 ierr = PetscFEGetDualSpace(fe, &Q);CHKERRQ(ierr); 1643 ierr = PetscFEGetNumComponents(fe, &Nc);CHKERRQ(ierr); 1644 } else if (id == PETSCFV_CLASSID) { 1645 PetscFV fv = (PetscFV) obj; 1646 1647 ierr = PetscFVGetDualSpace(fv, &Q);CHKERRQ(ierr); 1648 Nc = 1; 1649 } 1650 ierr = PetscDualSpaceGetDimension(Q, &fpdim);CHKERRQ(ierr); 1651 /* For each fine grid cell */ 1652 for (cell = cStart; cell < cEnd; ++cell) { 1653 PetscInt *findices, *cindices; 1654 PetscInt numFIndices, numCIndices; 1655 1656 ierr = DMPlexGetClosureIndices(dmf, fsection, globalFSection, cell, &numFIndices, &findices, NULL);CHKERRQ(ierr); 1657 ierr = DMPlexComputeCellGeometryFEM(dmf, cell, NULL, v0, J, invJ, &detJ);CHKERRQ(ierr); 1658 if (numFIndices != fpdim) SETERRQ2(PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "Number of fine indices %d != %d dual basis vecs", numFIndices, fpdim); 1659 for (i = 0; i < fpdim; ++i) { 1660 Vec pointVec; 1661 PetscScalar *pV; 1662 PetscSF coarseCellSF = NULL; 1663 const PetscSFNode *coarseCells; 1664 PetscInt numCoarseCells, cpdim, q, c, j; 1665 1666 /* Get points from the dual basis functional quadrature */ 1667 ierr = PetscDualSpaceGetFunctional(Q, i, &f);CHKERRQ(ierr); 1668 ierr = PetscQuadratureGetData(f, NULL, &qNc, &Np, &qpoints, &qweights);CHKERRQ(ierr); 1669 if (qNc != Nc) SETERRQ2(PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "Number of components in quadrature %D does not match coarse field %D", qNc, Nc); 1670 ierr = VecCreateSeq(PETSC_COMM_SELF, Np*dim, &pointVec);CHKERRQ(ierr); 1671 ierr = VecSetBlockSize(pointVec, dim);CHKERRQ(ierr); 1672 ierr = VecGetArray(pointVec, &pV);CHKERRQ(ierr); 1673 for (q = 0; q < Np; ++q) { 1674 /* Transform point to real space */ 1675 CoordinatesRefToReal(dim, dim, v0, J, &qpoints[q*dim], x); 1676 for (d = 0; d < dim; ++d) pV[q*dim+d] = x[d]; 1677 } 1678 ierr = VecRestoreArray(pointVec, &pV);CHKERRQ(ierr); 1679 /* Get set of coarse cells that overlap points (would like to group points by coarse cell) */ 1680 /* OPT: Read this out from preallocation information */ 1681 ierr = DMLocatePoints(dmc, pointVec, DM_POINTLOCATION_NEAREST, &coarseCellSF);CHKERRQ(ierr); 1682 /* Update preallocation info */ 1683 ierr = PetscSFGetGraph(coarseCellSF, NULL, &numCoarseCells, NULL, &coarseCells);CHKERRQ(ierr); 1684 if (numCoarseCells != Np) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_PLIB,"Not all closure points located"); 1685 ierr = VecGetArray(pointVec, &pV);CHKERRQ(ierr); 1686 for (ccell = 0; ccell < numCoarseCells; ++ccell) { 1687 PetscReal pVReal[3]; 1688 1689 ierr = DMPlexGetClosureIndices(dmc, csection, globalCSection, coarseCells[ccell].index, &numCIndices, &cindices, NULL);CHKERRQ(ierr); 1690 /* Transform points from real space to coarse reference space */ 1691 ierr = DMPlexComputeCellGeometryFEM(dmc, coarseCells[ccell].index, NULL, v0c, Jc, invJc, &detJc);CHKERRQ(ierr); 1692 for (d = 0; d < dim; ++d) pVReal[d] = PetscRealPart(pV[ccell*dim+d]); 1693 CoordinatesRealToRef(dim, dim, v0c, invJc, pVReal, x); 1694 1695 if (id == PETSCFE_CLASSID) { 1696 PetscFE fe = (PetscFE) obj; 1697 PetscReal *B; 1698 1699 /* Evaluate coarse basis on contained point */ 1700 ierr = PetscFEGetDimension(fe, &cpdim);CHKERRQ(ierr); 1701 ierr = PetscFEGetTabulation(fe, 1, x, &B, NULL, NULL);CHKERRQ(ierr); 1702 ierr = PetscMemzero(elemMat, cpdim * sizeof(PetscScalar));CHKERRQ(ierr); 1703 /* Get elemMat entries by multiplying by weight */ 1704 for (j = 0; j < cpdim; ++j) { 1705 for (c = 0; c < Nc; ++c) elemMat[j] += B[j*Nc + c]*qweights[ccell*qNc + c]; 1706 } 1707 ierr = PetscFERestoreTabulation(fe, 1, x, &B, NULL, NULL);CHKERRQ(ierr);CHKERRQ(ierr); 1708 } else { 1709 cpdim = 1; 1710 for (j = 0; j < cpdim; ++j) { 1711 for (c = 0; c < Nc; ++c) elemMat[j] += 1.0*qweights[ccell*qNc + c]; 1712 } 1713 } 1714 /* Update interpolator */ 1715 if (mesh->printFEM > 1) {ierr = DMPrintCellMatrix(cell, name, 1, numCIndices, elemMat);CHKERRQ(ierr);} 1716 if (numCIndices != cpdim) SETERRQ2(PETSC_COMM_SELF, PETSC_ERR_PLIB, "Number of element matrix columns %D != %D", numCIndices, cpdim); 1717 ierr = MatSetValues(In, 1, &findices[i], numCIndices, cindices, elemMat, INSERT_VALUES);CHKERRQ(ierr); 1718 ierr = DMPlexRestoreClosureIndices(dmc, csection, globalCSection, coarseCells[ccell].index, &numCIndices, &cindices, NULL);CHKERRQ(ierr); 1719 } 1720 ierr = VecRestoreArray(pointVec, &pV);CHKERRQ(ierr); 1721 ierr = PetscSFDestroy(&coarseCellSF);CHKERRQ(ierr); 1722 ierr = VecDestroy(&pointVec);CHKERRQ(ierr); 1723 } 1724 ierr = DMPlexRestoreClosureIndices(dmf, fsection, globalFSection, cell, &numFIndices, &findices, NULL);CHKERRQ(ierr); 1725 } 1726 } 1727 ierr = PetscFree3(v0,J,invJ);CHKERRQ(ierr); 1728 ierr = PetscFree3(v0c,Jc,invJc);CHKERRQ(ierr); 1729 ierr = PetscFree(elemMat);CHKERRQ(ierr); 1730 ierr = MatAssemblyBegin(In, MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 1731 ierr = MatAssemblyEnd(In, MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 1732 ierr = PetscLogEventEnd(DMPLEX_InterpolatorFEM,dmc,dmf,0,0);CHKERRQ(ierr); 1733 PetscFunctionReturn(0); 1734 } 1735 1736 /*@ 1737 DMPlexComputeInjectorFEM - Compute a mapping from coarse unknowns to fine unknowns 1738 1739 Input Parameters: 1740 + dmc - The coarse mesh 1741 - dmf - The fine mesh 1742 - user - The user context 1743 1744 Output Parameter: 1745 . sc - The mapping 1746 1747 Level: developer 1748 1749 .seealso: DMPlexComputeInterpolatorNested(), DMPlexComputeJacobianFEM() 1750 @*/ 1751 PetscErrorCode DMPlexComputeInjectorFEM(DM dmc, DM dmf, VecScatter *sc, void *user) 1752 { 1753 PetscDS prob; 1754 PetscFE *feRef; 1755 PetscFV *fvRef; 1756 Vec fv, cv; 1757 IS fis, cis; 1758 PetscSection fsection, fglobalSection, csection, cglobalSection; 1759 PetscInt *cmap, *cellCIndices, *cellFIndices, *cindices, *findices; 1760 PetscInt cTotDim, fTotDim = 0, Nf, f, field, cStart, cEnd, cEndInterior, c, dim, d, startC, endC, offsetC, offsetF, m; 1761 PetscErrorCode ierr; 1762 1763 PetscFunctionBegin; 1764 ierr = PetscLogEventBegin(DMPLEX_InjectorFEM,dmc,dmf,0,0);CHKERRQ(ierr); 1765 ierr = DMGetDimension(dmf, &dim);CHKERRQ(ierr); 1766 ierr = DMGetDefaultSection(dmf, &fsection);CHKERRQ(ierr); 1767 ierr = DMGetDefaultGlobalSection(dmf, &fglobalSection);CHKERRQ(ierr); 1768 ierr = DMGetDefaultSection(dmc, &csection);CHKERRQ(ierr); 1769 ierr = DMGetDefaultGlobalSection(dmc, &cglobalSection);CHKERRQ(ierr); 1770 ierr = PetscSectionGetNumFields(fsection, &Nf);CHKERRQ(ierr); 1771 ierr = DMPlexGetHeightStratum(dmc, 0, &cStart, &cEnd);CHKERRQ(ierr); 1772 ierr = DMPlexGetHybridBounds(dmc, &cEndInterior, NULL, NULL, NULL);CHKERRQ(ierr); 1773 cEnd = cEndInterior < 0 ? cEnd : cEndInterior; 1774 ierr = DMGetDS(dmc, &prob);CHKERRQ(ierr); 1775 ierr = PetscCalloc2(Nf,&feRef,Nf,&fvRef);CHKERRQ(ierr); 1776 for (f = 0; f < Nf; ++f) { 1777 PetscObject obj; 1778 PetscClassId id; 1779 PetscInt fNb = 0, Nc = 0; 1780 1781 ierr = PetscDSGetDiscretization(prob, f, &obj);CHKERRQ(ierr); 1782 ierr = PetscObjectGetClassId(obj, &id);CHKERRQ(ierr); 1783 if (id == PETSCFE_CLASSID) { 1784 PetscFE fe = (PetscFE) obj; 1785 1786 ierr = PetscFERefine(fe, &feRef[f]);CHKERRQ(ierr); 1787 ierr = PetscFEGetDimension(feRef[f], &fNb);CHKERRQ(ierr); 1788 ierr = PetscFEGetNumComponents(fe, &Nc);CHKERRQ(ierr); 1789 } else if (id == PETSCFV_CLASSID) { 1790 PetscFV fv = (PetscFV) obj; 1791 PetscDualSpace Q; 1792 1793 ierr = PetscFVRefine(fv, &fvRef[f]);CHKERRQ(ierr); 1794 ierr = PetscFVGetDualSpace(fvRef[f], &Q);CHKERRQ(ierr); 1795 ierr = PetscDualSpaceGetDimension(Q, &fNb);CHKERRQ(ierr); 1796 ierr = PetscFVGetNumComponents(fv, &Nc);CHKERRQ(ierr); 1797 } 1798 fTotDim += fNb*Nc; 1799 } 1800 ierr = PetscDSGetTotalDimension(prob, &cTotDim);CHKERRQ(ierr); 1801 ierr = PetscMalloc1(cTotDim,&cmap);CHKERRQ(ierr); 1802 for (field = 0, offsetC = 0, offsetF = 0; field < Nf; ++field) { 1803 PetscFE feC; 1804 PetscFV fvC; 1805 PetscDualSpace QF, QC; 1806 PetscInt NcF, NcC, fpdim, cpdim; 1807 1808 if (feRef[field]) { 1809 ierr = PetscDSGetDiscretization(prob, field, (PetscObject *) &feC);CHKERRQ(ierr); 1810 ierr = PetscFEGetNumComponents(feC, &NcC);CHKERRQ(ierr); 1811 ierr = PetscFEGetNumComponents(feRef[field], &NcF);CHKERRQ(ierr); 1812 ierr = PetscFEGetDualSpace(feRef[field], &QF);CHKERRQ(ierr); 1813 ierr = PetscDualSpaceGetDimension(QF, &fpdim);CHKERRQ(ierr); 1814 ierr = PetscFEGetDualSpace(feC, &QC);CHKERRQ(ierr); 1815 ierr = PetscDualSpaceGetDimension(QC, &cpdim);CHKERRQ(ierr); 1816 } else { 1817 ierr = PetscDSGetDiscretization(prob, field, (PetscObject *) &fvC);CHKERRQ(ierr); 1818 ierr = PetscFVGetNumComponents(fvC, &NcC);CHKERRQ(ierr); 1819 ierr = PetscFVGetNumComponents(fvRef[field], &NcF);CHKERRQ(ierr); 1820 ierr = PetscFVGetDualSpace(fvRef[field], &QF);CHKERRQ(ierr); 1821 ierr = PetscDualSpaceGetDimension(QF, &fpdim);CHKERRQ(ierr); 1822 ierr = PetscFVGetDualSpace(fvC, &QC);CHKERRQ(ierr); 1823 ierr = PetscDualSpaceGetDimension(QC, &cpdim);CHKERRQ(ierr); 1824 } 1825 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); 1826 for (c = 0; c < cpdim; ++c) { 1827 PetscQuadrature cfunc; 1828 const PetscReal *cqpoints; 1829 PetscInt NpC; 1830 PetscBool found = PETSC_FALSE; 1831 1832 ierr = PetscDualSpaceGetFunctional(QC, c, &cfunc);CHKERRQ(ierr); 1833 ierr = PetscQuadratureGetData(cfunc, NULL, NULL, &NpC, &cqpoints, NULL);CHKERRQ(ierr); 1834 if (NpC != 1 && feRef[field]) SETERRQ(PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "Do not know how to do injection for moments"); 1835 for (f = 0; f < fpdim; ++f) { 1836 PetscQuadrature ffunc; 1837 const PetscReal *fqpoints; 1838 PetscReal sum = 0.0; 1839 PetscInt NpF, comp; 1840 1841 ierr = PetscDualSpaceGetFunctional(QF, f, &ffunc);CHKERRQ(ierr); 1842 ierr = PetscQuadratureGetData(ffunc, NULL, NULL, &NpF, &fqpoints, NULL);CHKERRQ(ierr); 1843 if (NpC != NpF) continue; 1844 for (d = 0; d < dim; ++d) sum += PetscAbsReal(cqpoints[d] - fqpoints[d]); 1845 if (sum > 1.0e-9) continue; 1846 for (comp = 0; comp < NcC; ++comp) { 1847 cmap[(offsetC+c)*NcC+comp] = (offsetF+f)*NcF+comp; 1848 } 1849 found = PETSC_TRUE; 1850 break; 1851 } 1852 if (!found) { 1853 /* TODO We really want the average here, but some asshole put VecScatter in the interface */ 1854 if (fvRef[field]) { 1855 PetscInt comp; 1856 for (comp = 0; comp < NcC; ++comp) { 1857 cmap[(offsetC+c)*NcC+comp] = (offsetF+0)*NcF+comp; 1858 } 1859 } else SETERRQ(PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "Could not locate matching functional for injection"); 1860 } 1861 } 1862 offsetC += cpdim*NcC; 1863 offsetF += fpdim*NcF; 1864 } 1865 for (f = 0; f < Nf; ++f) {ierr = PetscFEDestroy(&feRef[f]);CHKERRQ(ierr);ierr = PetscFVDestroy(&fvRef[f]);CHKERRQ(ierr);} 1866 ierr = PetscFree2(feRef,fvRef);CHKERRQ(ierr); 1867 1868 ierr = DMGetGlobalVector(dmf, &fv);CHKERRQ(ierr); 1869 ierr = DMGetGlobalVector(dmc, &cv);CHKERRQ(ierr); 1870 ierr = VecGetOwnershipRange(cv, &startC, &endC);CHKERRQ(ierr); 1871 ierr = PetscSectionGetConstrainedStorageSize(cglobalSection, &m);CHKERRQ(ierr); 1872 ierr = PetscMalloc2(cTotDim,&cellCIndices,fTotDim,&cellFIndices);CHKERRQ(ierr); 1873 ierr = PetscMalloc1(m,&cindices);CHKERRQ(ierr); 1874 ierr = PetscMalloc1(m,&findices);CHKERRQ(ierr); 1875 for (d = 0; d < m; ++d) cindices[d] = findices[d] = -1; 1876 for (c = cStart; c < cEnd; ++c) { 1877 ierr = DMPlexMatGetClosureIndicesRefined(dmf, fsection, fglobalSection, dmc, csection, cglobalSection, c, cellCIndices, cellFIndices);CHKERRQ(ierr); 1878 for (d = 0; d < cTotDim; ++d) { 1879 if ((cellCIndices[d] < startC) || (cellCIndices[d] >= endC)) continue; 1880 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]]); 1881 cindices[cellCIndices[d]-startC] = cellCIndices[d]; 1882 findices[cellCIndices[d]-startC] = cellFIndices[cmap[d]]; 1883 } 1884 } 1885 ierr = PetscFree(cmap);CHKERRQ(ierr); 1886 ierr = PetscFree2(cellCIndices,cellFIndices);CHKERRQ(ierr); 1887 1888 ierr = ISCreateGeneral(PETSC_COMM_SELF, m, cindices, PETSC_OWN_POINTER, &cis);CHKERRQ(ierr); 1889 ierr = ISCreateGeneral(PETSC_COMM_SELF, m, findices, PETSC_OWN_POINTER, &fis);CHKERRQ(ierr); 1890 ierr = VecScatterCreate(cv, cis, fv, fis, sc);CHKERRQ(ierr); 1891 ierr = ISDestroy(&cis);CHKERRQ(ierr); 1892 ierr = ISDestroy(&fis);CHKERRQ(ierr); 1893 ierr = DMRestoreGlobalVector(dmf, &fv);CHKERRQ(ierr); 1894 ierr = DMRestoreGlobalVector(dmc, &cv);CHKERRQ(ierr); 1895 ierr = PetscLogEventEnd(DMPLEX_InjectorFEM,dmc,dmf,0,0);CHKERRQ(ierr); 1896 PetscFunctionReturn(0); 1897 } 1898