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 if (debug) { 1081 ierr = PetscPrintf(PETSC_COMM_SELF, "Cell %d gradient: [", cell);CHKERRQ(ierr); 1082 for (fc = 0; fc < numComponents; ++fc) { 1083 for (d = 0; d < coordDim; ++d) { 1084 if (fc || d > 0) {ierr = PetscPrintf(PETSC_COMM_SELF, ", ");CHKERRQ(ierr);} 1085 ierr = PetscPrintf(PETSC_COMM_SELF, "%g", grad[fc*coordDim+d]);CHKERRQ(ierr); 1086 gradsum[fc*coordDim+d] += grad[fc*coordDim+d]; 1087 } 1088 } 1089 ierr = PetscPrintf(PETSC_COMM_SELF, "]\n");CHKERRQ(ierr); 1090 } 1091 volsum += vol; 1092 } 1093 for (fc = 0; fc < numComponents; ++fc) { 1094 for (d = 0; d < coordDim; ++d) gradsum[fc*coordDim+d] /= volsum; 1095 } 1096 ierr = DMPlexRestoreTransitiveClosure(dm, v, PETSC_FALSE, &starSize, &star);CHKERRQ(ierr); 1097 ierr = DMPlexVecSetClosure(dmC, NULL, locC, v, gradsum, INSERT_VALUES);CHKERRQ(ierr); 1098 } 1099 ierr = PetscFree6(gradsum,interpolant,coords,detJ,J,invJ);CHKERRQ(ierr); 1100 PetscFunctionReturn(0); 1101 } 1102 1103 /*@ 1104 DMPlexComputeIntegralFEM - Form the local integral F from the local input X using pointwise functions specified by the user 1105 1106 Input Parameters: 1107 + dm - The mesh 1108 . X - Local input vector 1109 - user - The user context 1110 1111 Output Parameter: 1112 . integral - Local integral for each field 1113 1114 Level: developer 1115 1116 .seealso: DMPlexComputeResidualFEM() 1117 @*/ 1118 PetscErrorCode DMPlexComputeIntegralFEM(DM dm, Vec X, PetscReal *integral, void *user) 1119 { 1120 DM_Plex *mesh = (DM_Plex *) dm->data; 1121 DM dmAux, dmGrad; 1122 Vec localX, A, cellGeometryFVM = NULL, faceGeometryFVM = NULL, locGrad = NULL; 1123 PetscDS prob, probAux = NULL; 1124 PetscSection section, sectionAux; 1125 PetscFV fvm = NULL; 1126 PetscFECellGeom *cgeomFEM; 1127 PetscFVFaceGeom *fgeomFVM; 1128 PetscFVCellGeom *cgeomFVM; 1129 PetscScalar *u, *a = NULL; 1130 const PetscScalar *constants, *lgrad; 1131 PetscReal *lintegral; 1132 PetscInt *uOff, *uOff_x, *aOff = NULL; 1133 PetscInt dim, numConstants, Nf, NfAux = 0, f, numCells, cStart, cEnd, cEndInterior, c; 1134 PetscInt totDim, totDimAux; 1135 PetscBool useFVM = PETSC_FALSE; 1136 PetscErrorCode ierr; 1137 1138 PetscFunctionBegin; 1139 ierr = PetscLogEventBegin(DMPLEX_IntegralFEM,dm,0,0,0);CHKERRQ(ierr); 1140 ierr = DMGetLocalVector(dm, &localX);CHKERRQ(ierr); 1141 ierr = DMPlexInsertBoundaryValues(dm, PETSC_TRUE, localX, 0.0, NULL, NULL, NULL);CHKERRQ(ierr); 1142 ierr = DMGlobalToLocalBegin(dm, X, INSERT_VALUES, localX);CHKERRQ(ierr); 1143 ierr = DMGlobalToLocalEnd(dm, X, INSERT_VALUES, localX);CHKERRQ(ierr); 1144 ierr = DMGetDimension(dm, &dim);CHKERRQ(ierr); 1145 ierr = DMGetDefaultSection(dm, §ion);CHKERRQ(ierr); 1146 ierr = DMGetDS(dm, &prob);CHKERRQ(ierr); 1147 ierr = PetscDSGetTotalDimension(prob, &totDim);CHKERRQ(ierr); 1148 ierr = PetscDSGetComponentOffsets(prob, &uOff);CHKERRQ(ierr); 1149 ierr = PetscDSGetComponentDerivativeOffsets(prob, &uOff_x);CHKERRQ(ierr); 1150 ierr = PetscDSGetConstants(prob, &numConstants, &constants);CHKERRQ(ierr); 1151 ierr = PetscSectionGetNumFields(section, &Nf);CHKERRQ(ierr); 1152 ierr = DMPlexGetHeightStratum(dm, 0, &cStart, &cEnd);CHKERRQ(ierr); 1153 ierr = DMPlexGetHybridBounds(dm, &cEndInterior, NULL, NULL, NULL);CHKERRQ(ierr); 1154 cEnd = cEndInterior < 0 ? cEnd : cEndInterior; 1155 numCells = cEnd - cStart; 1156 ierr = PetscObjectQuery((PetscObject) dm, "dmAux", (PetscObject *) &dmAux);CHKERRQ(ierr); 1157 ierr = PetscObjectQuery((PetscObject) dm, "A", (PetscObject *) &A);CHKERRQ(ierr); 1158 if (dmAux) { 1159 ierr = DMGetDS(dmAux, &probAux);CHKERRQ(ierr); 1160 ierr = PetscDSGetNumFields(probAux, &NfAux);CHKERRQ(ierr); 1161 ierr = DMGetDefaultSection(dmAux, §ionAux);CHKERRQ(ierr); 1162 ierr = PetscDSGetTotalDimension(probAux, &totDimAux);CHKERRQ(ierr); 1163 ierr = PetscDSGetComponentOffsets(probAux, &aOff);CHKERRQ(ierr); 1164 ierr = PetscDSGetEvaluationArrays(probAux, &a, NULL, NULL);CHKERRQ(ierr); 1165 } 1166 for (f = 0; f < Nf; ++f) { 1167 PetscObject obj; 1168 PetscClassId id; 1169 1170 ierr = PetscDSGetDiscretization(prob, f, &obj);CHKERRQ(ierr); 1171 ierr = PetscObjectGetClassId(obj, &id);CHKERRQ(ierr); 1172 if (id == PETSCFV_CLASSID) {useFVM = PETSC_TRUE; fvm = (PetscFV) obj;} 1173 } 1174 if (useFVM) { 1175 Vec grad; 1176 PetscInt fStart, fEnd; 1177 PetscBool compGrad; 1178 1179 ierr = PetscFVGetComputeGradients(fvm, &compGrad);CHKERRQ(ierr); 1180 ierr = PetscFVSetComputeGradients(fvm, PETSC_TRUE);CHKERRQ(ierr); 1181 ierr = DMPlexComputeGeometryFVM(dm, &cellGeometryFVM, &faceGeometryFVM);CHKERRQ(ierr); 1182 ierr = DMPlexComputeGradientFVM(dm, fvm, faceGeometryFVM, cellGeometryFVM, &dmGrad);CHKERRQ(ierr); 1183 ierr = PetscFVSetComputeGradients(fvm, compGrad);CHKERRQ(ierr); 1184 ierr = VecGetArrayRead(faceGeometryFVM, (const PetscScalar **) &fgeomFVM);CHKERRQ(ierr); 1185 ierr = VecGetArrayRead(cellGeometryFVM, (const PetscScalar **) &cgeomFVM);CHKERRQ(ierr); 1186 /* Reconstruct and limit cell gradients */ 1187 ierr = DMPlexGetHeightStratum(dm, 1, &fStart, &fEnd);CHKERRQ(ierr); 1188 ierr = DMGetGlobalVector(dmGrad, &grad);CHKERRQ(ierr); 1189 ierr = DMPlexReconstructGradients_Internal(dm, fvm, fStart, fEnd, faceGeometryFVM, cellGeometryFVM, localX, grad);CHKERRQ(ierr); 1190 /* Communicate gradient values */ 1191 ierr = DMGetLocalVector(dmGrad, &locGrad);CHKERRQ(ierr); 1192 ierr = DMGlobalToLocalBegin(dmGrad, grad, INSERT_VALUES, locGrad);CHKERRQ(ierr); 1193 ierr = DMGlobalToLocalEnd(dmGrad, grad, INSERT_VALUES, locGrad);CHKERRQ(ierr); 1194 ierr = DMRestoreGlobalVector(dmGrad, &grad);CHKERRQ(ierr); 1195 /* Handle non-essential (e.g. outflow) boundary values */ 1196 ierr = DMPlexInsertBoundaryValues(dm, PETSC_FALSE, localX, 0.0, faceGeometryFVM, cellGeometryFVM, locGrad);CHKERRQ(ierr); 1197 ierr = VecGetArrayRead(locGrad, &lgrad);CHKERRQ(ierr); 1198 } 1199 ierr = PetscMalloc3(Nf,&lintegral,numCells*totDim,&u,numCells,&cgeomFEM);CHKERRQ(ierr); 1200 if (dmAux) {ierr = PetscMalloc1(numCells*totDimAux, &a);CHKERRQ(ierr);} 1201 for (f = 0; f < Nf; ++f) {lintegral[f] = 0.0;} 1202 for (c = cStart; c < cEnd; ++c) { 1203 PetscScalar *x = NULL; 1204 PetscInt i; 1205 1206 ierr = DMPlexComputeCellGeometryFEM(dm, c, NULL, cgeomFEM[c].v0, cgeomFEM[c].J, cgeomFEM[c].invJ, &cgeomFEM[c].detJ);CHKERRQ(ierr); 1207 if (cgeomFEM[c].detJ <= 0.0) SETERRQ2(PETSC_COMM_SELF, PETSC_ERR_ARG_OUTOFRANGE, "Invalid determinant %g for element %d", cgeomFEM[c].detJ, c); 1208 ierr = DMPlexVecGetClosure(dm, section, localX, c, NULL, &x);CHKERRQ(ierr); 1209 for (i = 0; i < totDim; ++i) u[c*totDim+i] = x[i]; 1210 ierr = DMPlexVecRestoreClosure(dm, section, localX, c, NULL, &x);CHKERRQ(ierr); 1211 if (dmAux) { 1212 ierr = DMPlexVecGetClosure(dmAux, sectionAux, A, c, NULL, &x);CHKERRQ(ierr); 1213 for (i = 0; i < totDimAux; ++i) a[c*totDimAux+i] = x[i]; 1214 ierr = DMPlexVecRestoreClosure(dmAux, sectionAux, A, c, NULL, &x);CHKERRQ(ierr); 1215 } 1216 } 1217 for (f = 0; f < Nf; ++f) { 1218 PetscObject obj; 1219 PetscClassId id; 1220 PetscInt numChunks, numBatches, batchSize, numBlocks, blockSize, Ne, Nr, offset; 1221 1222 ierr = PetscDSGetDiscretization(prob, f, &obj);CHKERRQ(ierr); 1223 ierr = PetscObjectGetClassId(obj, &id);CHKERRQ(ierr); 1224 if (id == PETSCFE_CLASSID) { 1225 PetscFE fe = (PetscFE) obj; 1226 PetscQuadrature q; 1227 PetscInt Nq, Nb; 1228 1229 ierr = PetscFEGetTileSizes(fe, NULL, &numBlocks, NULL, &numBatches);CHKERRQ(ierr); 1230 ierr = PetscFEGetQuadrature(fe, &q);CHKERRQ(ierr); 1231 ierr = PetscQuadratureGetData(q, NULL, NULL, &Nq, NULL, NULL);CHKERRQ(ierr); 1232 ierr = PetscFEGetDimension(fe, &Nb);CHKERRQ(ierr); 1233 blockSize = Nb*Nq; 1234 batchSize = numBlocks * blockSize; 1235 ierr = PetscFESetTileSizes(fe, blockSize, numBlocks, batchSize, numBatches);CHKERRQ(ierr); 1236 numChunks = numCells / (numBatches*batchSize); 1237 Ne = numChunks*numBatches*batchSize; 1238 Nr = numCells % (numBatches*batchSize); 1239 offset = numCells - Nr; 1240 ierr = PetscFEIntegrate(fe, prob, f, Ne, cgeomFEM, u, probAux, a, lintegral);CHKERRQ(ierr); 1241 ierr = PetscFEIntegrate(fe, prob, f, Nr, &cgeomFEM[offset], &u[offset*totDim], probAux, &a[offset*totDimAux], lintegral);CHKERRQ(ierr); 1242 } else if (id == PETSCFV_CLASSID) { 1243 /* PetscFV fv = (PetscFV) obj; */ 1244 PetscInt foff; 1245 PetscPointFunc obj_func; 1246 PetscScalar lint; 1247 1248 ierr = PetscDSGetObjective(prob, f, &obj_func);CHKERRQ(ierr); 1249 ierr = PetscDSGetFieldOffset(prob, f, &foff);CHKERRQ(ierr); 1250 if (obj_func) { 1251 for (c = 0; c < numCells; ++c) { 1252 PetscScalar *u_x; 1253 1254 ierr = DMPlexPointLocalRead(dmGrad, c, lgrad, &u_x);CHKERRQ(ierr); 1255 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); 1256 lintegral[f] += PetscRealPart(lint)*cgeomFVM[c].volume; 1257 } 1258 } 1259 } else SETERRQ1(PetscObjectComm((PetscObject) dm), PETSC_ERR_ARG_WRONG, "Unknown discretization type for field %d", f); 1260 } 1261 if (useFVM) { 1262 ierr = VecRestoreArrayRead(locGrad, &lgrad);CHKERRQ(ierr); 1263 ierr = VecRestoreArrayRead(faceGeometryFVM, (const PetscScalar **) &fgeomFVM);CHKERRQ(ierr); 1264 ierr = VecRestoreArrayRead(cellGeometryFVM, (const PetscScalar **) &cgeomFVM);CHKERRQ(ierr); 1265 ierr = DMRestoreLocalVector(dmGrad, &locGrad);CHKERRQ(ierr); 1266 ierr = VecDestroy(&faceGeometryFVM);CHKERRQ(ierr); 1267 ierr = VecDestroy(&cellGeometryFVM);CHKERRQ(ierr); 1268 ierr = DMDestroy(&dmGrad);CHKERRQ(ierr); 1269 } 1270 if (dmAux) {ierr = PetscFree(a);CHKERRQ(ierr);} 1271 if (mesh->printFEM) { 1272 ierr = PetscPrintf(PetscObjectComm((PetscObject) dm), "Local integral:");CHKERRQ(ierr); 1273 for (f = 0; f < Nf; ++f) {ierr = PetscPrintf(PetscObjectComm((PetscObject) dm), " %g", lintegral[f]);CHKERRQ(ierr);} 1274 ierr = PetscPrintf(PetscObjectComm((PetscObject) dm), "\n");CHKERRQ(ierr); 1275 } 1276 ierr = DMRestoreLocalVector(dm, &localX);CHKERRQ(ierr); 1277 ierr = MPIU_Allreduce(lintegral, integral, Nf, MPIU_REAL, MPIU_SUM, PetscObjectComm((PetscObject) dm));CHKERRQ(ierr); 1278 ierr = PetscFree3(lintegral,u,cgeomFEM);CHKERRQ(ierr); 1279 ierr = PetscLogEventEnd(DMPLEX_IntegralFEM,dm,0,0,0);CHKERRQ(ierr); 1280 PetscFunctionReturn(0); 1281 } 1282 1283 /*@ 1284 DMPlexComputeInterpolatorNested - Form the local portion of the interpolation matrix I from the coarse DM to the uniformly refined DM. 1285 1286 Input Parameters: 1287 + dmf - The fine mesh 1288 . dmc - The coarse mesh 1289 - user - The user context 1290 1291 Output Parameter: 1292 . In - The interpolation matrix 1293 1294 Level: developer 1295 1296 .seealso: DMPlexComputeInterpolatorGeneral(), DMPlexComputeJacobianFEM() 1297 @*/ 1298 PetscErrorCode DMPlexComputeInterpolatorNested(DM dmc, DM dmf, Mat In, void *user) 1299 { 1300 DM_Plex *mesh = (DM_Plex *) dmc->data; 1301 const char *name = "Interpolator"; 1302 PetscDS prob; 1303 PetscFE *feRef; 1304 PetscFV *fvRef; 1305 PetscSection fsection, fglobalSection; 1306 PetscSection csection, cglobalSection; 1307 PetscScalar *elemMat; 1308 PetscInt dim, Nf, f, fieldI, fieldJ, offsetI, offsetJ, cStart, cEnd, cEndInterior, c; 1309 PetscInt cTotDim, rTotDim = 0; 1310 PetscErrorCode ierr; 1311 1312 PetscFunctionBegin; 1313 ierr = PetscLogEventBegin(DMPLEX_InterpolatorFEM,dmc,dmf,0,0);CHKERRQ(ierr); 1314 ierr = DMGetDimension(dmf, &dim);CHKERRQ(ierr); 1315 ierr = DMGetDefaultSection(dmf, &fsection);CHKERRQ(ierr); 1316 ierr = DMGetDefaultGlobalSection(dmf, &fglobalSection);CHKERRQ(ierr); 1317 ierr = DMGetDefaultSection(dmc, &csection);CHKERRQ(ierr); 1318 ierr = DMGetDefaultGlobalSection(dmc, &cglobalSection);CHKERRQ(ierr); 1319 ierr = PetscSectionGetNumFields(fsection, &Nf);CHKERRQ(ierr); 1320 ierr = DMPlexGetHeightStratum(dmc, 0, &cStart, &cEnd);CHKERRQ(ierr); 1321 ierr = DMPlexGetHybridBounds(dmc, &cEndInterior, NULL, NULL, NULL);CHKERRQ(ierr); 1322 cEnd = cEndInterior < 0 ? cEnd : cEndInterior; 1323 ierr = DMGetDS(dmf, &prob);CHKERRQ(ierr); 1324 ierr = PetscCalloc2(Nf,&feRef,Nf,&fvRef);CHKERRQ(ierr); 1325 for (f = 0; f < Nf; ++f) { 1326 PetscObject obj; 1327 PetscClassId id; 1328 PetscInt rNb = 0, Nc = 0; 1329 1330 ierr = PetscDSGetDiscretization(prob, f, &obj);CHKERRQ(ierr); 1331 ierr = PetscObjectGetClassId(obj, &id);CHKERRQ(ierr); 1332 if (id == PETSCFE_CLASSID) { 1333 PetscFE fe = (PetscFE) obj; 1334 1335 ierr = PetscFERefine(fe, &feRef[f]);CHKERRQ(ierr); 1336 ierr = PetscFEGetDimension(feRef[f], &rNb);CHKERRQ(ierr); 1337 ierr = PetscFEGetNumComponents(fe, &Nc);CHKERRQ(ierr); 1338 } else if (id == PETSCFV_CLASSID) { 1339 PetscFV fv = (PetscFV) obj; 1340 PetscDualSpace Q; 1341 1342 ierr = PetscFVRefine(fv, &fvRef[f]);CHKERRQ(ierr); 1343 ierr = PetscFVGetDualSpace(fvRef[f], &Q);CHKERRQ(ierr); 1344 ierr = PetscDualSpaceGetDimension(Q, &rNb);CHKERRQ(ierr); 1345 ierr = PetscFVGetNumComponents(fv, &Nc);CHKERRQ(ierr); 1346 } 1347 rTotDim += rNb; 1348 } 1349 ierr = PetscDSGetTotalDimension(prob, &cTotDim);CHKERRQ(ierr); 1350 ierr = PetscMalloc1(rTotDim*cTotDim,&elemMat);CHKERRQ(ierr); 1351 ierr = PetscMemzero(elemMat, rTotDim*cTotDim * sizeof(PetscScalar));CHKERRQ(ierr); 1352 for (fieldI = 0, offsetI = 0; fieldI < Nf; ++fieldI) { 1353 PetscDualSpace Qref; 1354 PetscQuadrature f; 1355 const PetscReal *qpoints, *qweights; 1356 PetscReal *points; 1357 PetscInt npoints = 0, Nc, Np, fpdim, i, k, p, d; 1358 1359 /* Compose points from all dual basis functionals */ 1360 if (feRef[fieldI]) { 1361 ierr = PetscFEGetDualSpace(feRef[fieldI], &Qref);CHKERRQ(ierr); 1362 ierr = PetscFEGetNumComponents(feRef[fieldI], &Nc);CHKERRQ(ierr); 1363 } else { 1364 ierr = PetscFVGetDualSpace(fvRef[fieldI], &Qref);CHKERRQ(ierr); 1365 ierr = PetscFVGetNumComponents(fvRef[fieldI], &Nc);CHKERRQ(ierr); 1366 } 1367 ierr = PetscDualSpaceGetDimension(Qref, &fpdim);CHKERRQ(ierr); 1368 for (i = 0; i < fpdim; ++i) { 1369 ierr = PetscDualSpaceGetFunctional(Qref, i, &f);CHKERRQ(ierr); 1370 ierr = PetscQuadratureGetData(f, NULL, NULL, &Np, NULL, NULL);CHKERRQ(ierr); 1371 npoints += Np; 1372 } 1373 ierr = PetscMalloc1(npoints*dim,&points);CHKERRQ(ierr); 1374 for (i = 0, k = 0; i < fpdim; ++i) { 1375 ierr = PetscDualSpaceGetFunctional(Qref, i, &f);CHKERRQ(ierr); 1376 ierr = PetscQuadratureGetData(f, NULL, NULL, &Np, &qpoints, NULL);CHKERRQ(ierr); 1377 for (p = 0; p < Np; ++p, ++k) for (d = 0; d < dim; ++d) points[k*dim+d] = qpoints[p*dim+d]; 1378 } 1379 1380 for (fieldJ = 0, offsetJ = 0; fieldJ < Nf; ++fieldJ) { 1381 PetscObject obj; 1382 PetscClassId id; 1383 PetscReal *B; 1384 PetscInt NcJ = 0, cpdim = 0, j, qNc; 1385 1386 ierr = PetscDSGetDiscretization(prob, fieldJ, &obj);CHKERRQ(ierr); 1387 ierr = PetscObjectGetClassId(obj, &id);CHKERRQ(ierr); 1388 if (id == PETSCFE_CLASSID) { 1389 PetscFE fe = (PetscFE) obj; 1390 1391 /* Evaluate basis at points */ 1392 ierr = PetscFEGetNumComponents(fe, &NcJ);CHKERRQ(ierr); 1393 ierr = PetscFEGetDimension(fe, &cpdim);CHKERRQ(ierr); 1394 /* For now, fields only interpolate themselves */ 1395 if (fieldI == fieldJ) { 1396 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); 1397 ierr = PetscFEGetTabulation(fe, npoints, points, &B, NULL, NULL);CHKERRQ(ierr); 1398 for (i = 0, k = 0; i < fpdim; ++i) { 1399 ierr = PetscDualSpaceGetFunctional(Qref, i, &f);CHKERRQ(ierr); 1400 ierr = PetscQuadratureGetData(f, NULL, &qNc, &Np, NULL, &qweights);CHKERRQ(ierr); 1401 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); 1402 for (p = 0; p < Np; ++p, ++k) { 1403 for (j = 0; j < cpdim; ++j) { 1404 /* NOTE: This is not quite right, unless fpdim == number of fine grid functional quad points */ 1405 for (c = 0; c < Nc; ++c) elemMat[(offsetI + i)*cTotDim + offsetJ + j] += B[k*cpdim*NcJ+j*Nc+c]*qweights[p*qNc+c]; 1406 } 1407 } 1408 } 1409 ierr = PetscFERestoreTabulation(fe, npoints, points, &B, NULL, NULL);CHKERRQ(ierr);CHKERRQ(ierr); 1410 } 1411 } else if (id == PETSCFV_CLASSID) { 1412 PetscFV fv = (PetscFV) obj; 1413 1414 /* Evaluate constant function at points */ 1415 ierr = PetscFVGetNumComponents(fv, &NcJ);CHKERRQ(ierr); 1416 cpdim = 1; 1417 /* For now, fields only interpolate themselves */ 1418 if (fieldI == fieldJ) { 1419 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); 1420 for (i = 0, k = 0; i < fpdim; ++i) { 1421 ierr = PetscDualSpaceGetFunctional(Qref, i, &f);CHKERRQ(ierr); 1422 ierr = PetscQuadratureGetData(f, NULL, &qNc, &Np, NULL, &qweights);CHKERRQ(ierr); 1423 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); 1424 for (p = 0; p < Np; ++p, ++k) { 1425 for (j = 0; j < cpdim; ++j) { 1426 for (c = 0; c < Nc; ++c) elemMat[(offsetI + i*Nc + c)*cTotDim + offsetJ + j*NcJ + c] += 1.0*qweights[p*qNc+c]; 1427 } 1428 } 1429 } 1430 } 1431 } 1432 offsetJ += cpdim*NcJ; 1433 } 1434 offsetI += fpdim*Nc; 1435 ierr = PetscFree(points);CHKERRQ(ierr); 1436 } 1437 if (mesh->printFEM > 1) {ierr = DMPrintCellMatrix(0, name, rTotDim, cTotDim, elemMat);CHKERRQ(ierr);} 1438 /* Preallocate matrix */ 1439 { 1440 Mat preallocator; 1441 PetscScalar *vals; 1442 PetscInt *cellCIndices, *cellFIndices; 1443 PetscInt locRows, locCols, cell; 1444 1445 ierr = MatGetLocalSize(In, &locRows, &locCols);CHKERRQ(ierr); 1446 ierr = MatCreate(PetscObjectComm((PetscObject) In), &preallocator);CHKERRQ(ierr); 1447 ierr = MatSetType(preallocator, MATPREALLOCATOR);CHKERRQ(ierr); 1448 ierr = MatSetSizes(preallocator, locRows, locCols, PETSC_DETERMINE, PETSC_DETERMINE);CHKERRQ(ierr); 1449 ierr = MatSetUp(preallocator);CHKERRQ(ierr); 1450 ierr = PetscCalloc3(rTotDim*cTotDim, &vals,cTotDim,&cellCIndices,rTotDim,&cellFIndices);CHKERRQ(ierr); 1451 for (cell = cStart; cell < cEnd; ++cell) { 1452 ierr = DMPlexMatGetClosureIndicesRefined(dmf, fsection, fglobalSection, dmc, csection, cglobalSection, cell, cellCIndices, cellFIndices);CHKERRQ(ierr); 1453 ierr = MatSetValues(preallocator, rTotDim, cellFIndices, cTotDim, cellCIndices, vals, INSERT_VALUES);CHKERRQ(ierr); 1454 } 1455 ierr = PetscFree3(vals,cellCIndices,cellFIndices);CHKERRQ(ierr); 1456 ierr = MatAssemblyBegin(preallocator, MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 1457 ierr = MatAssemblyEnd(preallocator, MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 1458 ierr = MatPreallocatorPreallocate(preallocator, PETSC_TRUE, In);CHKERRQ(ierr); 1459 ierr = MatDestroy(&preallocator);CHKERRQ(ierr); 1460 } 1461 /* Fill matrix */ 1462 ierr = MatZeroEntries(In);CHKERRQ(ierr); 1463 for (c = cStart; c < cEnd; ++c) { 1464 ierr = DMPlexMatSetClosureRefined(dmf, fsection, fglobalSection, dmc, csection, cglobalSection, In, c, elemMat, INSERT_VALUES);CHKERRQ(ierr); 1465 } 1466 for (f = 0; f < Nf; ++f) {ierr = PetscFEDestroy(&feRef[f]);CHKERRQ(ierr);} 1467 ierr = PetscFree2(feRef,fvRef);CHKERRQ(ierr); 1468 ierr = PetscFree(elemMat);CHKERRQ(ierr); 1469 ierr = MatAssemblyBegin(In, MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 1470 ierr = MatAssemblyEnd(In, MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 1471 if (mesh->printFEM) { 1472 ierr = PetscPrintf(PETSC_COMM_WORLD, "%s:\n", name);CHKERRQ(ierr); 1473 ierr = MatChop(In, 1.0e-10);CHKERRQ(ierr); 1474 ierr = MatView(In, PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr); 1475 } 1476 ierr = PetscLogEventEnd(DMPLEX_InterpolatorFEM,dmc,dmf,0,0);CHKERRQ(ierr); 1477 PetscFunctionReturn(0); 1478 } 1479 1480 /*@ 1481 DMPlexComputeInterpolatorGeneral - Form the local portion of the interpolation matrix I from the coarse DM to a non-nested fine DM. 1482 1483 Input Parameters: 1484 + dmf - The fine mesh 1485 . dmc - The coarse mesh 1486 - user - The user context 1487 1488 Output Parameter: 1489 . In - The interpolation matrix 1490 1491 Level: developer 1492 1493 .seealso: DMPlexComputeInterpolatorNested(), DMPlexComputeJacobianFEM() 1494 @*/ 1495 PetscErrorCode DMPlexComputeInterpolatorGeneral(DM dmc, DM dmf, Mat In, void *user) 1496 { 1497 DM_Plex *mesh = (DM_Plex *) dmf->data; 1498 const char *name = "Interpolator"; 1499 PetscDS prob; 1500 PetscSection fsection, csection, globalFSection, globalCSection; 1501 PetscHashJK ht; 1502 PetscLayout rLayout; 1503 PetscInt *dnz, *onz; 1504 PetscInt locRows, rStart, rEnd; 1505 PetscReal *x, *v0, *J, *invJ, detJ; 1506 PetscReal *v0c, *Jc, *invJc, detJc; 1507 PetscScalar *elemMat; 1508 PetscInt dim, Nf, field, totDim, cStart, cEnd, cell, ccell; 1509 PetscErrorCode ierr; 1510 1511 PetscFunctionBegin; 1512 ierr = PetscLogEventBegin(DMPLEX_InterpolatorFEM,dmc,dmf,0,0);CHKERRQ(ierr); 1513 ierr = DMGetCoordinateDim(dmc, &dim);CHKERRQ(ierr); 1514 ierr = DMGetDS(dmc, &prob);CHKERRQ(ierr); 1515 ierr = PetscDSGetRefCoordArrays(prob, &x, NULL);CHKERRQ(ierr); 1516 ierr = PetscDSGetNumFields(prob, &Nf);CHKERRQ(ierr); 1517 ierr = PetscMalloc3(dim,&v0,dim*dim,&J,dim*dim,&invJ);CHKERRQ(ierr); 1518 ierr = PetscMalloc3(dim,&v0c,dim*dim,&Jc,dim*dim,&invJc);CHKERRQ(ierr); 1519 ierr = DMGetDefaultSection(dmf, &fsection);CHKERRQ(ierr); 1520 ierr = DMGetDefaultGlobalSection(dmf, &globalFSection);CHKERRQ(ierr); 1521 ierr = DMGetDefaultSection(dmc, &csection);CHKERRQ(ierr); 1522 ierr = DMGetDefaultGlobalSection(dmc, &globalCSection);CHKERRQ(ierr); 1523 ierr = DMPlexGetHeightStratum(dmf, 0, &cStart, &cEnd);CHKERRQ(ierr); 1524 ierr = PetscDSGetTotalDimension(prob, &totDim);CHKERRQ(ierr); 1525 ierr = PetscMalloc1(totDim, &elemMat);CHKERRQ(ierr); 1526 1527 ierr = MatGetLocalSize(In, &locRows, NULL);CHKERRQ(ierr); 1528 ierr = PetscLayoutCreate(PetscObjectComm((PetscObject) In), &rLayout);CHKERRQ(ierr); 1529 ierr = PetscLayoutSetLocalSize(rLayout, locRows);CHKERRQ(ierr); 1530 ierr = PetscLayoutSetBlockSize(rLayout, 1);CHKERRQ(ierr); 1531 ierr = PetscLayoutSetUp(rLayout);CHKERRQ(ierr); 1532 ierr = PetscLayoutGetRange(rLayout, &rStart, &rEnd);CHKERRQ(ierr); 1533 ierr = PetscLayoutDestroy(&rLayout);CHKERRQ(ierr); 1534 ierr = PetscCalloc2(locRows,&dnz,locRows,&onz);CHKERRQ(ierr); 1535 ierr = PetscHashJKCreate(&ht);CHKERRQ(ierr); 1536 for (field = 0; field < Nf; ++field) { 1537 PetscObject obj; 1538 PetscClassId id; 1539 PetscDualSpace Q = NULL; 1540 PetscQuadrature f; 1541 const PetscReal *qpoints; 1542 PetscInt Nc, Np, fpdim, i, d; 1543 1544 ierr = PetscDSGetDiscretization(prob, field, &obj);CHKERRQ(ierr); 1545 ierr = PetscObjectGetClassId(obj, &id);CHKERRQ(ierr); 1546 if (id == PETSCFE_CLASSID) { 1547 PetscFE fe = (PetscFE) obj; 1548 1549 ierr = PetscFEGetDualSpace(fe, &Q);CHKERRQ(ierr); 1550 ierr = PetscFEGetNumComponents(fe, &Nc);CHKERRQ(ierr); 1551 } else if (id == PETSCFV_CLASSID) { 1552 PetscFV fv = (PetscFV) obj; 1553 1554 ierr = PetscFVGetDualSpace(fv, &Q);CHKERRQ(ierr); 1555 Nc = 1; 1556 } 1557 ierr = PetscDualSpaceGetDimension(Q, &fpdim);CHKERRQ(ierr); 1558 /* For each fine grid cell */ 1559 for (cell = cStart; cell < cEnd; ++cell) { 1560 PetscInt *findices, *cindices; 1561 PetscInt numFIndices, numCIndices; 1562 1563 ierr = DMPlexGetClosureIndices(dmf, fsection, globalFSection, cell, &numFIndices, &findices, NULL);CHKERRQ(ierr); 1564 ierr = DMPlexComputeCellGeometryFEM(dmf, cell, NULL, v0, J, invJ, &detJ);CHKERRQ(ierr); 1565 if (numFIndices != fpdim) SETERRQ2(PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "Number of fine indices %d != %d dual basis vecs", numFIndices, fpdim); 1566 for (i = 0; i < fpdim; ++i) { 1567 Vec pointVec; 1568 PetscScalar *pV; 1569 PetscSF coarseCellSF = NULL; 1570 const PetscSFNode *coarseCells; 1571 PetscInt numCoarseCells, q, c; 1572 1573 /* Get points from the dual basis functional quadrature */ 1574 ierr = PetscDualSpaceGetFunctional(Q, i, &f);CHKERRQ(ierr); 1575 ierr = PetscQuadratureGetData(f, NULL, NULL, &Np, &qpoints, NULL);CHKERRQ(ierr); 1576 ierr = VecCreateSeq(PETSC_COMM_SELF, Np*dim, &pointVec);CHKERRQ(ierr); 1577 ierr = VecSetBlockSize(pointVec, dim);CHKERRQ(ierr); 1578 ierr = VecGetArray(pointVec, &pV);CHKERRQ(ierr); 1579 for (q = 0; q < Np; ++q) { 1580 /* Transform point to real space */ 1581 CoordinatesRefToReal(dim, dim, v0, J, &qpoints[q*dim], x); 1582 for (d = 0; d < dim; ++d) pV[q*dim+d] = x[d]; 1583 } 1584 ierr = VecRestoreArray(pointVec, &pV);CHKERRQ(ierr); 1585 /* Get set of coarse cells that overlap points (would like to group points by coarse cell) */ 1586 /* OPT: Pack all quad points from fine cell */ 1587 ierr = DMLocatePoints(dmc, pointVec, DM_POINTLOCATION_NEAREST, &coarseCellSF);CHKERRQ(ierr); 1588 ierr = PetscSFViewFromOptions(coarseCellSF, NULL, "-interp_sf_view");CHKERRQ(ierr); 1589 /* Update preallocation info */ 1590 ierr = PetscSFGetGraph(coarseCellSF, NULL, &numCoarseCells, NULL, &coarseCells);CHKERRQ(ierr); 1591 if (numCoarseCells != Np) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_PLIB,"Not all closure points located"); 1592 { 1593 PetscHashJKKey key; 1594 PetscHashJKIter missing, iter; 1595 1596 key.j = findices[i]; 1597 if (key.j >= 0) { 1598 /* Get indices for coarse elements */ 1599 for (ccell = 0; ccell < numCoarseCells; ++ccell) { 1600 ierr = DMPlexGetClosureIndices(dmc, csection, globalCSection, coarseCells[ccell].index, &numCIndices, &cindices, NULL);CHKERRQ(ierr); 1601 for (c = 0; c < numCIndices; ++c) { 1602 key.k = cindices[c]; 1603 if (key.k < 0) continue; 1604 ierr = PetscHashJKPut(ht, key, &missing, &iter);CHKERRQ(ierr); 1605 if (missing) { 1606 ierr = PetscHashJKSet(ht, iter, 1);CHKERRQ(ierr); 1607 if ((key.k >= rStart) && (key.k < rEnd)) ++dnz[key.j-rStart]; 1608 else ++onz[key.j-rStart]; 1609 } 1610 } 1611 ierr = DMPlexRestoreClosureIndices(dmc, csection, globalCSection, coarseCells[ccell].index, &numCIndices, &cindices, NULL);CHKERRQ(ierr); 1612 } 1613 } 1614 } 1615 ierr = PetscSFDestroy(&coarseCellSF);CHKERRQ(ierr); 1616 ierr = VecDestroy(&pointVec);CHKERRQ(ierr); 1617 } 1618 ierr = DMPlexRestoreClosureIndices(dmf, fsection, globalFSection, cell, &numFIndices, &findices, NULL);CHKERRQ(ierr); 1619 } 1620 } 1621 ierr = PetscHashJKDestroy(&ht);CHKERRQ(ierr); 1622 ierr = MatXAIJSetPreallocation(In, 1, dnz, onz, NULL, NULL);CHKERRQ(ierr); 1623 ierr = MatSetOption(In, MAT_NEW_NONZERO_ALLOCATION_ERR,PETSC_TRUE);CHKERRQ(ierr); 1624 ierr = PetscFree2(dnz,onz);CHKERRQ(ierr); 1625 for (field = 0; field < Nf; ++field) { 1626 PetscObject obj; 1627 PetscClassId id; 1628 PetscDualSpace Q = NULL; 1629 PetscQuadrature f; 1630 const PetscReal *qpoints, *qweights; 1631 PetscInt Nc, qNc, Np, fpdim, i, d; 1632 1633 ierr = PetscDSGetDiscretization(prob, field, &obj);CHKERRQ(ierr); 1634 ierr = PetscObjectGetClassId(obj, &id);CHKERRQ(ierr); 1635 if (id == PETSCFE_CLASSID) { 1636 PetscFE fe = (PetscFE) obj; 1637 1638 ierr = PetscFEGetDualSpace(fe, &Q);CHKERRQ(ierr); 1639 ierr = PetscFEGetNumComponents(fe, &Nc);CHKERRQ(ierr); 1640 } else if (id == PETSCFV_CLASSID) { 1641 PetscFV fv = (PetscFV) obj; 1642 1643 ierr = PetscFVGetDualSpace(fv, &Q);CHKERRQ(ierr); 1644 Nc = 1; 1645 } 1646 ierr = PetscDualSpaceGetDimension(Q, &fpdim);CHKERRQ(ierr); 1647 /* For each fine grid cell */ 1648 for (cell = cStart; cell < cEnd; ++cell) { 1649 PetscInt *findices, *cindices; 1650 PetscInt numFIndices, numCIndices; 1651 1652 ierr = DMPlexGetClosureIndices(dmf, fsection, globalFSection, cell, &numFIndices, &findices, NULL);CHKERRQ(ierr); 1653 ierr = DMPlexComputeCellGeometryFEM(dmf, cell, NULL, v0, J, invJ, &detJ);CHKERRQ(ierr); 1654 if (numFIndices != fpdim) SETERRQ2(PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "Number of fine indices %d != %d dual basis vecs", numFIndices, fpdim); 1655 for (i = 0; i < fpdim; ++i) { 1656 Vec pointVec; 1657 PetscScalar *pV; 1658 PetscSF coarseCellSF = NULL; 1659 const PetscSFNode *coarseCells; 1660 PetscInt numCoarseCells, cpdim, q, c, j; 1661 1662 /* Get points from the dual basis functional quadrature */ 1663 ierr = PetscDualSpaceGetFunctional(Q, i, &f);CHKERRQ(ierr); 1664 ierr = PetscQuadratureGetData(f, NULL, &qNc, &Np, &qpoints, &qweights);CHKERRQ(ierr); 1665 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); 1666 ierr = VecCreateSeq(PETSC_COMM_SELF, Np*dim, &pointVec);CHKERRQ(ierr); 1667 ierr = VecSetBlockSize(pointVec, dim);CHKERRQ(ierr); 1668 ierr = VecGetArray(pointVec, &pV);CHKERRQ(ierr); 1669 for (q = 0; q < Np; ++q) { 1670 /* Transform point to real space */ 1671 CoordinatesRefToReal(dim, dim, v0, J, &qpoints[q*dim], x); 1672 for (d = 0; d < dim; ++d) pV[q*dim+d] = x[d]; 1673 } 1674 ierr = VecRestoreArray(pointVec, &pV);CHKERRQ(ierr); 1675 /* Get set of coarse cells that overlap points (would like to group points by coarse cell) */ 1676 /* OPT: Read this out from preallocation information */ 1677 ierr = DMLocatePoints(dmc, pointVec, DM_POINTLOCATION_NEAREST, &coarseCellSF);CHKERRQ(ierr); 1678 /* Update preallocation info */ 1679 ierr = PetscSFGetGraph(coarseCellSF, NULL, &numCoarseCells, NULL, &coarseCells);CHKERRQ(ierr); 1680 if (numCoarseCells != Np) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_PLIB,"Not all closure points located"); 1681 ierr = VecGetArray(pointVec, &pV);CHKERRQ(ierr); 1682 for (ccell = 0; ccell < numCoarseCells; ++ccell) { 1683 PetscReal pVReal[3]; 1684 1685 ierr = DMPlexGetClosureIndices(dmc, csection, globalCSection, coarseCells[ccell].index, &numCIndices, &cindices, NULL);CHKERRQ(ierr); 1686 /* Transform points from real space to coarse reference space */ 1687 ierr = DMPlexComputeCellGeometryFEM(dmc, coarseCells[ccell].index, NULL, v0c, Jc, invJc, &detJc);CHKERRQ(ierr); 1688 for (d = 0; d < dim; ++d) pVReal[d] = PetscRealPart(pV[ccell*dim+d]); 1689 CoordinatesRealToRef(dim, dim, v0c, invJc, pVReal, x); 1690 1691 if (id == PETSCFE_CLASSID) { 1692 PetscFE fe = (PetscFE) obj; 1693 PetscReal *B; 1694 1695 /* Evaluate coarse basis on contained point */ 1696 ierr = PetscFEGetDimension(fe, &cpdim);CHKERRQ(ierr); 1697 ierr = PetscFEGetTabulation(fe, 1, x, &B, NULL, NULL);CHKERRQ(ierr); 1698 ierr = PetscMemzero(elemMat, cpdim * sizeof(PetscScalar));CHKERRQ(ierr); 1699 /* Get elemMat entries by multiplying by weight */ 1700 for (j = 0; j < cpdim; ++j) { 1701 for (c = 0; c < Nc; ++c) elemMat[j] += B[j*Nc + c]*qweights[ccell*qNc + c]; 1702 } 1703 ierr = PetscFERestoreTabulation(fe, 1, x, &B, NULL, NULL);CHKERRQ(ierr);CHKERRQ(ierr); 1704 } else { 1705 cpdim = 1; 1706 for (j = 0; j < cpdim; ++j) { 1707 for (c = 0; c < Nc; ++c) elemMat[j] += 1.0*qweights[ccell*qNc + c]; 1708 } 1709 } 1710 /* Update interpolator */ 1711 if (mesh->printFEM > 1) {ierr = DMPrintCellMatrix(cell, name, 1, numCIndices, elemMat);CHKERRQ(ierr);} 1712 if (numCIndices != cpdim) SETERRQ2(PETSC_COMM_SELF, PETSC_ERR_PLIB, "Number of element matrix columns %D != %D", numCIndices, cpdim); 1713 ierr = MatSetValues(In, 1, &findices[i], numCIndices, cindices, elemMat, INSERT_VALUES);CHKERRQ(ierr); 1714 ierr = DMPlexRestoreClosureIndices(dmc, csection, globalCSection, coarseCells[ccell].index, &numCIndices, &cindices, NULL);CHKERRQ(ierr); 1715 } 1716 ierr = VecRestoreArray(pointVec, &pV);CHKERRQ(ierr); 1717 ierr = PetscSFDestroy(&coarseCellSF);CHKERRQ(ierr); 1718 ierr = VecDestroy(&pointVec);CHKERRQ(ierr); 1719 } 1720 ierr = DMPlexRestoreClosureIndices(dmf, fsection, globalFSection, cell, &numFIndices, &findices, NULL);CHKERRQ(ierr); 1721 } 1722 } 1723 ierr = PetscFree3(v0,J,invJ);CHKERRQ(ierr); 1724 ierr = PetscFree3(v0c,Jc,invJc);CHKERRQ(ierr); 1725 ierr = PetscFree(elemMat);CHKERRQ(ierr); 1726 ierr = MatAssemblyBegin(In, MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 1727 ierr = MatAssemblyEnd(In, MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 1728 ierr = PetscLogEventEnd(DMPLEX_InterpolatorFEM,dmc,dmf,0,0);CHKERRQ(ierr); 1729 PetscFunctionReturn(0); 1730 } 1731 1732 /*@ 1733 DMPlexComputeInjectorFEM - Compute a mapping from coarse unknowns to fine unknowns 1734 1735 Input Parameters: 1736 + dmc - The coarse mesh 1737 - dmf - The fine mesh 1738 - user - The user context 1739 1740 Output Parameter: 1741 . sc - The mapping 1742 1743 Level: developer 1744 1745 .seealso: DMPlexComputeInterpolatorNested(), DMPlexComputeJacobianFEM() 1746 @*/ 1747 PetscErrorCode DMPlexComputeInjectorFEM(DM dmc, DM dmf, VecScatter *sc, void *user) 1748 { 1749 PetscDS prob; 1750 PetscFE *feRef; 1751 PetscFV *fvRef; 1752 Vec fv, cv; 1753 IS fis, cis; 1754 PetscSection fsection, fglobalSection, csection, cglobalSection; 1755 PetscInt *cmap, *cellCIndices, *cellFIndices, *cindices, *findices; 1756 PetscInt cTotDim, fTotDim = 0, Nf, f, field, cStart, cEnd, cEndInterior, c, dim, d, startC, endC, offsetC, offsetF, m; 1757 PetscErrorCode ierr; 1758 1759 PetscFunctionBegin; 1760 ierr = PetscLogEventBegin(DMPLEX_InjectorFEM,dmc,dmf,0,0);CHKERRQ(ierr); 1761 ierr = DMGetDimension(dmf, &dim);CHKERRQ(ierr); 1762 ierr = DMGetDefaultSection(dmf, &fsection);CHKERRQ(ierr); 1763 ierr = DMGetDefaultGlobalSection(dmf, &fglobalSection);CHKERRQ(ierr); 1764 ierr = DMGetDefaultSection(dmc, &csection);CHKERRQ(ierr); 1765 ierr = DMGetDefaultGlobalSection(dmc, &cglobalSection);CHKERRQ(ierr); 1766 ierr = PetscSectionGetNumFields(fsection, &Nf);CHKERRQ(ierr); 1767 ierr = DMPlexGetHeightStratum(dmc, 0, &cStart, &cEnd);CHKERRQ(ierr); 1768 ierr = DMPlexGetHybridBounds(dmc, &cEndInterior, NULL, NULL, NULL);CHKERRQ(ierr); 1769 cEnd = cEndInterior < 0 ? cEnd : cEndInterior; 1770 ierr = DMGetDS(dmc, &prob);CHKERRQ(ierr); 1771 ierr = PetscCalloc2(Nf,&feRef,Nf,&fvRef);CHKERRQ(ierr); 1772 for (f = 0; f < Nf; ++f) { 1773 PetscObject obj; 1774 PetscClassId id; 1775 PetscInt fNb = 0, Nc = 0; 1776 1777 ierr = PetscDSGetDiscretization(prob, f, &obj);CHKERRQ(ierr); 1778 ierr = PetscObjectGetClassId(obj, &id);CHKERRQ(ierr); 1779 if (id == PETSCFE_CLASSID) { 1780 PetscFE fe = (PetscFE) obj; 1781 1782 ierr = PetscFERefine(fe, &feRef[f]);CHKERRQ(ierr); 1783 ierr = PetscFEGetDimension(feRef[f], &fNb);CHKERRQ(ierr); 1784 ierr = PetscFEGetNumComponents(fe, &Nc);CHKERRQ(ierr); 1785 } else if (id == PETSCFV_CLASSID) { 1786 PetscFV fv = (PetscFV) obj; 1787 PetscDualSpace Q; 1788 1789 ierr = PetscFVRefine(fv, &fvRef[f]);CHKERRQ(ierr); 1790 ierr = PetscFVGetDualSpace(fvRef[f], &Q);CHKERRQ(ierr); 1791 ierr = PetscDualSpaceGetDimension(Q, &fNb);CHKERRQ(ierr); 1792 ierr = PetscFVGetNumComponents(fv, &Nc);CHKERRQ(ierr); 1793 } 1794 fTotDim += fNb*Nc; 1795 } 1796 ierr = PetscDSGetTotalDimension(prob, &cTotDim);CHKERRQ(ierr); 1797 ierr = PetscMalloc1(cTotDim,&cmap);CHKERRQ(ierr); 1798 for (field = 0, offsetC = 0, offsetF = 0; field < Nf; ++field) { 1799 PetscFE feC; 1800 PetscFV fvC; 1801 PetscDualSpace QF, QC; 1802 PetscInt NcF, NcC, fpdim, cpdim; 1803 1804 if (feRef[field]) { 1805 ierr = PetscDSGetDiscretization(prob, field, (PetscObject *) &feC);CHKERRQ(ierr); 1806 ierr = PetscFEGetNumComponents(feC, &NcC);CHKERRQ(ierr); 1807 ierr = PetscFEGetNumComponents(feRef[field], &NcF);CHKERRQ(ierr); 1808 ierr = PetscFEGetDualSpace(feRef[field], &QF);CHKERRQ(ierr); 1809 ierr = PetscDualSpaceGetDimension(QF, &fpdim);CHKERRQ(ierr); 1810 ierr = PetscFEGetDualSpace(feC, &QC);CHKERRQ(ierr); 1811 ierr = PetscDualSpaceGetDimension(QC, &cpdim);CHKERRQ(ierr); 1812 } else { 1813 ierr = PetscDSGetDiscretization(prob, field, (PetscObject *) &fvC);CHKERRQ(ierr); 1814 ierr = PetscFVGetNumComponents(fvC, &NcC);CHKERRQ(ierr); 1815 ierr = PetscFVGetNumComponents(fvRef[field], &NcF);CHKERRQ(ierr); 1816 ierr = PetscFVGetDualSpace(fvRef[field], &QF);CHKERRQ(ierr); 1817 ierr = PetscDualSpaceGetDimension(QF, &fpdim);CHKERRQ(ierr); 1818 ierr = PetscFVGetDualSpace(fvC, &QC);CHKERRQ(ierr); 1819 ierr = PetscDualSpaceGetDimension(QC, &cpdim);CHKERRQ(ierr); 1820 } 1821 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); 1822 for (c = 0; c < cpdim; ++c) { 1823 PetscQuadrature cfunc; 1824 const PetscReal *cqpoints; 1825 PetscInt NpC; 1826 PetscBool found = PETSC_FALSE; 1827 1828 ierr = PetscDualSpaceGetFunctional(QC, c, &cfunc);CHKERRQ(ierr); 1829 ierr = PetscQuadratureGetData(cfunc, NULL, NULL, &NpC, &cqpoints, NULL);CHKERRQ(ierr); 1830 if (NpC != 1 && feRef[field]) SETERRQ(PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "Do not know how to do injection for moments"); 1831 for (f = 0; f < fpdim; ++f) { 1832 PetscQuadrature ffunc; 1833 const PetscReal *fqpoints; 1834 PetscReal sum = 0.0; 1835 PetscInt NpF, comp; 1836 1837 ierr = PetscDualSpaceGetFunctional(QF, f, &ffunc);CHKERRQ(ierr); 1838 ierr = PetscQuadratureGetData(ffunc, NULL, NULL, &NpF, &fqpoints, NULL);CHKERRQ(ierr); 1839 if (NpC != NpF) continue; 1840 for (d = 0; d < dim; ++d) sum += PetscAbsReal(cqpoints[d] - fqpoints[d]); 1841 if (sum > 1.0e-9) continue; 1842 for (comp = 0; comp < NcC; ++comp) { 1843 cmap[(offsetC+c)*NcC+comp] = (offsetF+f)*NcF+comp; 1844 } 1845 found = PETSC_TRUE; 1846 break; 1847 } 1848 if (!found) { 1849 /* TODO We really want the average here, but some asshole put VecScatter in the interface */ 1850 if (fvRef[field]) { 1851 PetscInt comp; 1852 for (comp = 0; comp < NcC; ++comp) { 1853 cmap[(offsetC+c)*NcC+comp] = (offsetF+0)*NcF+comp; 1854 } 1855 } else SETERRQ(PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "Could not locate matching functional for injection"); 1856 } 1857 } 1858 offsetC += cpdim*NcC; 1859 offsetF += fpdim*NcF; 1860 } 1861 for (f = 0; f < Nf; ++f) {ierr = PetscFEDestroy(&feRef[f]);CHKERRQ(ierr);ierr = PetscFVDestroy(&fvRef[f]);CHKERRQ(ierr);} 1862 ierr = PetscFree2(feRef,fvRef);CHKERRQ(ierr); 1863 1864 ierr = DMGetGlobalVector(dmf, &fv);CHKERRQ(ierr); 1865 ierr = DMGetGlobalVector(dmc, &cv);CHKERRQ(ierr); 1866 ierr = VecGetOwnershipRange(cv, &startC, &endC);CHKERRQ(ierr); 1867 ierr = PetscSectionGetConstrainedStorageSize(cglobalSection, &m);CHKERRQ(ierr); 1868 ierr = PetscMalloc2(cTotDim,&cellCIndices,fTotDim,&cellFIndices);CHKERRQ(ierr); 1869 ierr = PetscMalloc1(m,&cindices);CHKERRQ(ierr); 1870 ierr = PetscMalloc1(m,&findices);CHKERRQ(ierr); 1871 for (d = 0; d < m; ++d) cindices[d] = findices[d] = -1; 1872 for (c = cStart; c < cEnd; ++c) { 1873 ierr = DMPlexMatGetClosureIndicesRefined(dmf, fsection, fglobalSection, dmc, csection, cglobalSection, c, cellCIndices, cellFIndices);CHKERRQ(ierr); 1874 for (d = 0; d < cTotDim; ++d) { 1875 if ((cellCIndices[d] < startC) || (cellCIndices[d] >= endC)) continue; 1876 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]]); 1877 cindices[cellCIndices[d]-startC] = cellCIndices[d]; 1878 findices[cellCIndices[d]-startC] = cellFIndices[cmap[d]]; 1879 } 1880 } 1881 ierr = PetscFree(cmap);CHKERRQ(ierr); 1882 ierr = PetscFree2(cellCIndices,cellFIndices);CHKERRQ(ierr); 1883 1884 ierr = ISCreateGeneral(PETSC_COMM_SELF, m, cindices, PETSC_OWN_POINTER, &cis);CHKERRQ(ierr); 1885 ierr = ISCreateGeneral(PETSC_COMM_SELF, m, findices, PETSC_OWN_POINTER, &fis);CHKERRQ(ierr); 1886 ierr = VecScatterCreate(cv, cis, fv, fis, sc);CHKERRQ(ierr); 1887 ierr = ISDestroy(&cis);CHKERRQ(ierr); 1888 ierr = ISDestroy(&fis);CHKERRQ(ierr); 1889 ierr = DMRestoreGlobalVector(dmf, &fv);CHKERRQ(ierr); 1890 ierr = DMRestoreGlobalVector(dmc, &cv);CHKERRQ(ierr); 1891 ierr = PetscLogEventEnd(DMPLEX_InjectorFEM,dmc,dmf,0,0);CHKERRQ(ierr); 1892 PetscFunctionReturn(0); 1893 } 1894