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 dmC; 987 PetscSection section; 988 PetscQuadrature quad; 989 PetscScalar *interpolant, *gradsum; 990 PetscReal *coords, *detJ, *J, *invJ; 991 const PetscReal *quadPoints, *quadWeights; 992 PetscInt dim, coordDim, numFields, numComponents = 0, qNc, Nq, cStart, cEnd, cEndInterior, vStart, vEnd, v, field, fieldOffset; 993 PetscErrorCode ierr; 994 995 PetscFunctionBegin; 996 ierr = VecGetDM(locC, &dmC);CHKERRQ(ierr); 997 ierr = VecSet(locC, 0.0);CHKERRQ(ierr); 998 ierr = DMGetDimension(dm, &dim);CHKERRQ(ierr); 999 ierr = DMGetCoordinateDim(dm, &coordDim);CHKERRQ(ierr); 1000 ierr = DMGetDefaultSection(dm, §ion);CHKERRQ(ierr); 1001 ierr = PetscSectionGetNumFields(section, &numFields);CHKERRQ(ierr); 1002 for (field = 0; field < numFields; ++field) { 1003 PetscObject obj; 1004 PetscClassId id; 1005 PetscInt Nc; 1006 1007 ierr = DMGetField(dm, field, &obj);CHKERRQ(ierr); 1008 ierr = PetscObjectGetClassId(obj, &id);CHKERRQ(ierr); 1009 if (id == PETSCFE_CLASSID) { 1010 PetscFE fe = (PetscFE) obj; 1011 1012 ierr = PetscFEGetQuadrature(fe, &quad);CHKERRQ(ierr); 1013 ierr = PetscFEGetNumComponents(fe, &Nc);CHKERRQ(ierr); 1014 } else if (id == PETSCFV_CLASSID) { 1015 PetscFV fv = (PetscFV) obj; 1016 1017 ierr = PetscFVGetQuadrature(fv, &quad);CHKERRQ(ierr); 1018 ierr = PetscFVGetNumComponents(fv, &Nc);CHKERRQ(ierr); 1019 } else SETERRQ1(PetscObjectComm((PetscObject)dm), PETSC_ERR_ARG_WRONG, "Unknown discretization type for field %d", field); 1020 numComponents += Nc; 1021 } 1022 ierr = PetscQuadratureGetData(quad, NULL, &qNc, &Nq, &quadPoints, &quadWeights);CHKERRQ(ierr); 1023 if ((qNc != 1) && (qNc != numComponents)) SETERRQ2(PetscObjectComm((PetscObject) dm), PETSC_ERR_ARG_SIZ, "Quadrature components %D != %D field components", qNc, numComponents); 1024 ierr = PetscMalloc6(coordDim*numComponents*2,&gradsum,coordDim*numComponents,&interpolant,coordDim*Nq,&coords,Nq,&detJ,coordDim*coordDim*Nq,&J,coordDim*coordDim*Nq,&invJ);CHKERRQ(ierr); 1025 ierr = DMPlexGetDepthStratum(dm, 0, &vStart, &vEnd);CHKERRQ(ierr); 1026 ierr = DMPlexGetHeightStratum(dm, 0, &cStart, &cEnd);CHKERRQ(ierr); 1027 ierr = DMPlexGetHybridBounds(dm, &cEndInterior, NULL, NULL, NULL);CHKERRQ(ierr); 1028 cEnd = cEndInterior < 0 ? cEnd : cEndInterior; 1029 for (v = vStart; v < vEnd; ++v) { 1030 PetscScalar volsum = 0.0; 1031 PetscInt *star = NULL; 1032 PetscInt starSize, st, d, fc; 1033 1034 ierr = PetscMemzero(gradsum, coordDim*numComponents * sizeof(PetscScalar));CHKERRQ(ierr); 1035 ierr = DMPlexGetTransitiveClosure(dm, v, PETSC_FALSE, &starSize, &star);CHKERRQ(ierr); 1036 for (st = 0; st < starSize*2; st += 2) { 1037 const PetscInt cell = star[st]; 1038 PetscScalar *grad = &gradsum[coordDim*numComponents]; 1039 PetscScalar *x = NULL; 1040 PetscReal vol = 0.0; 1041 1042 if ((cell < cStart) || (cell >= cEnd)) continue; 1043 ierr = DMPlexComputeCellGeometryFEM(dm, cell, quad, coords, J, invJ, detJ);CHKERRQ(ierr); 1044 ierr = DMPlexVecGetClosure(dm, NULL, locX, cell, NULL, &x);CHKERRQ(ierr); 1045 for (field = 0, fieldOffset = 0; field < numFields; ++field) { 1046 PetscObject obj; 1047 PetscClassId id; 1048 PetscInt Nb, Nc, q, qc = 0; 1049 1050 ierr = PetscMemzero(grad, coordDim*numComponents * sizeof(PetscScalar));CHKERRQ(ierr); 1051 ierr = DMGetField(dm, field, &obj);CHKERRQ(ierr); 1052 ierr = PetscObjectGetClassId(obj, &id);CHKERRQ(ierr); 1053 if (id == PETSCFE_CLASSID) {ierr = PetscFEGetNumComponents((PetscFE) obj, &Nc);CHKERRQ(ierr);ierr = PetscFEGetDimension((PetscFE) obj, &Nb);CHKERRQ(ierr);} 1054 else if (id == PETSCFV_CLASSID) {ierr = PetscFVGetNumComponents((PetscFV) obj, &Nc);CHKERRQ(ierr);Nb = 1;} 1055 else SETERRQ1(PetscObjectComm((PetscObject)dm), PETSC_ERR_ARG_WRONG, "Unknown discretization type for field %d", field); 1056 for (q = 0; q < Nq; ++q) { 1057 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); 1058 if (ierr) { 1059 PetscErrorCode ierr2; 1060 ierr2 = DMPlexVecRestoreClosure(dm, NULL, locX, cell, NULL, &x);CHKERRQ(ierr2); 1061 ierr2 = DMPlexRestoreTransitiveClosure(dm, v, PETSC_FALSE, &starSize, &star);CHKERRQ(ierr2); 1062 ierr2 = PetscFree4(interpolant,coords,detJ,J);CHKERRQ(ierr2); 1063 CHKERRQ(ierr); 1064 } 1065 if (id == PETSCFE_CLASSID) {ierr = PetscFEInterpolateGradient_Static((PetscFE) obj, &x[fieldOffset], coordDim, invJ, NULL, q, interpolant);CHKERRQ(ierr);} 1066 else SETERRQ1(PetscObjectComm((PetscObject)dm), PETSC_ERR_ARG_WRONG, "Unknown discretization type for field %d", field); 1067 for (fc = 0; fc < Nc; ++fc) { 1068 const PetscReal wt = quadWeights[q*qNc+qc+fc]; 1069 1070 for (d = 0; d < coordDim; ++d) grad[fc*coordDim+d] += interpolant[fc*dim+d]*wt*detJ[q]; 1071 } 1072 vol += quadWeights[q*qNc]*detJ[q]; 1073 } 1074 fieldOffset += Nb; 1075 qc += Nc; 1076 } 1077 ierr = DMPlexVecRestoreClosure(dm, NULL, locX, cell, NULL, &x);CHKERRQ(ierr); 1078 ierr = PetscPrintf(PETSC_COMM_SELF, "Cell %d gradient: [", cell);CHKERRQ(ierr); 1079 for (fc = 0; fc < numComponents; ++fc) { 1080 for (d = 0; d < coordDim; ++d) { 1081 if (fc || d > 0) {ierr = PetscPrintf(PETSC_COMM_SELF, ", ");CHKERRQ(ierr);} 1082 ierr = PetscPrintf(PETSC_COMM_SELF, "%g", grad[fc*coordDim+d]);CHKERRQ(ierr); 1083 gradsum[fc*coordDim+d] += grad[fc*coordDim+d]; 1084 } 1085 } 1086 ierr = PetscPrintf(PETSC_COMM_SELF, "]\n");CHKERRQ(ierr); 1087 volsum += vol; 1088 } 1089 for (fc = 0; fc < numComponents; ++fc) { 1090 for (d = 0; d < coordDim; ++d) gradsum[fc*coordDim+d] /= volsum; 1091 } 1092 ierr = DMPlexRestoreTransitiveClosure(dm, v, PETSC_FALSE, &starSize, &star);CHKERRQ(ierr); 1093 ierr = DMPlexVecSetClosure(dmC, NULL, locC, v, gradsum, INSERT_VALUES);CHKERRQ(ierr); 1094 } 1095 ierr = PetscFree6(gradsum,interpolant,coords,detJ,J,invJ);CHKERRQ(ierr); 1096 PetscFunctionReturn(0); 1097 } 1098 1099 /*@ 1100 DMPlexComputeIntegralFEM - Form the local integral F from the local input X using pointwise functions specified by the user 1101 1102 Input Parameters: 1103 + dm - The mesh 1104 . X - Local input vector 1105 - user - The user context 1106 1107 Output Parameter: 1108 . integral - Local integral for each field 1109 1110 Level: developer 1111 1112 .seealso: DMPlexComputeResidualFEM() 1113 @*/ 1114 PetscErrorCode DMPlexComputeIntegralFEM(DM dm, Vec X, PetscReal *integral, void *user) 1115 { 1116 DM_Plex *mesh = (DM_Plex *) dm->data; 1117 DM dmAux, dmGrad; 1118 Vec localX, A, cellGeometryFVM = NULL, faceGeometryFVM = NULL, locGrad = NULL; 1119 PetscDS prob, probAux = NULL; 1120 PetscSection section, sectionAux; 1121 PetscFV fvm = NULL; 1122 PetscFECellGeom *cgeomFEM; 1123 PetscFVFaceGeom *fgeomFVM; 1124 PetscFVCellGeom *cgeomFVM; 1125 PetscScalar *u, *a = NULL; 1126 const PetscScalar *constants, *lgrad; 1127 PetscReal *lintegral; 1128 PetscInt *uOff, *uOff_x, *aOff = NULL; 1129 PetscInt dim, numConstants, Nf, NfAux = 0, f, numCells, cStart, cEnd, cEndInterior, c; 1130 PetscInt totDim, totDimAux; 1131 PetscBool useFVM = PETSC_FALSE; 1132 PetscErrorCode ierr; 1133 1134 PetscFunctionBegin; 1135 ierr = PetscLogEventBegin(DMPLEX_IntegralFEM,dm,0,0,0);CHKERRQ(ierr); 1136 ierr = DMGetLocalVector(dm, &localX);CHKERRQ(ierr); 1137 ierr = DMPlexInsertBoundaryValues(dm, PETSC_TRUE, localX, 0.0, NULL, NULL, NULL);CHKERRQ(ierr); 1138 ierr = DMGlobalToLocalBegin(dm, X, INSERT_VALUES, localX);CHKERRQ(ierr); 1139 ierr = DMGlobalToLocalEnd(dm, X, INSERT_VALUES, localX);CHKERRQ(ierr); 1140 ierr = DMGetDimension(dm, &dim);CHKERRQ(ierr); 1141 ierr = DMGetDefaultSection(dm, §ion);CHKERRQ(ierr); 1142 ierr = DMGetDS(dm, &prob);CHKERRQ(ierr); 1143 ierr = PetscDSGetTotalDimension(prob, &totDim);CHKERRQ(ierr); 1144 ierr = PetscDSGetComponentOffsets(prob, &uOff);CHKERRQ(ierr); 1145 ierr = PetscDSGetComponentDerivativeOffsets(prob, &uOff_x);CHKERRQ(ierr); 1146 ierr = PetscDSGetConstants(prob, &numConstants, &constants);CHKERRQ(ierr); 1147 ierr = PetscSectionGetNumFields(section, &Nf);CHKERRQ(ierr); 1148 ierr = DMPlexGetHeightStratum(dm, 0, &cStart, &cEnd);CHKERRQ(ierr); 1149 ierr = DMPlexGetHybridBounds(dm, &cEndInterior, NULL, NULL, NULL);CHKERRQ(ierr); 1150 cEnd = cEndInterior < 0 ? cEnd : cEndInterior; 1151 numCells = cEnd - cStart; 1152 ierr = PetscObjectQuery((PetscObject) dm, "dmAux", (PetscObject *) &dmAux);CHKERRQ(ierr); 1153 ierr = PetscObjectQuery((PetscObject) dm, "A", (PetscObject *) &A);CHKERRQ(ierr); 1154 if (dmAux) { 1155 ierr = DMGetDS(dmAux, &probAux);CHKERRQ(ierr); 1156 ierr = PetscDSGetNumFields(probAux, &NfAux);CHKERRQ(ierr); 1157 ierr = DMGetDefaultSection(dmAux, §ionAux);CHKERRQ(ierr); 1158 ierr = PetscDSGetTotalDimension(probAux, &totDimAux);CHKERRQ(ierr); 1159 ierr = PetscDSGetComponentOffsets(probAux, &aOff);CHKERRQ(ierr); 1160 ierr = PetscDSGetEvaluationArrays(probAux, &a, NULL, NULL);CHKERRQ(ierr); 1161 } 1162 for (f = 0; f < Nf; ++f) { 1163 PetscObject obj; 1164 PetscClassId id; 1165 1166 ierr = PetscDSGetDiscretization(prob, f, &obj);CHKERRQ(ierr); 1167 ierr = PetscObjectGetClassId(obj, &id);CHKERRQ(ierr); 1168 if (id == PETSCFV_CLASSID) {useFVM = PETSC_TRUE; fvm = (PetscFV) obj;} 1169 } 1170 if (useFVM) { 1171 Vec grad; 1172 PetscInt fStart, fEnd; 1173 PetscBool compGrad; 1174 1175 ierr = PetscFVGetComputeGradients(fvm, &compGrad);CHKERRQ(ierr); 1176 ierr = PetscFVSetComputeGradients(fvm, PETSC_TRUE);CHKERRQ(ierr); 1177 ierr = DMPlexComputeGeometryFVM(dm, &cellGeometryFVM, &faceGeometryFVM);CHKERRQ(ierr); 1178 ierr = DMPlexComputeGradientFVM(dm, fvm, faceGeometryFVM, cellGeometryFVM, &dmGrad);CHKERRQ(ierr); 1179 ierr = PetscFVSetComputeGradients(fvm, compGrad);CHKERRQ(ierr); 1180 ierr = VecGetArrayRead(faceGeometryFVM, (const PetscScalar **) &fgeomFVM);CHKERRQ(ierr); 1181 ierr = VecGetArrayRead(cellGeometryFVM, (const PetscScalar **) &cgeomFVM);CHKERRQ(ierr); 1182 /* Reconstruct and limit cell gradients */ 1183 ierr = DMPlexGetHeightStratum(dm, 1, &fStart, &fEnd);CHKERRQ(ierr); 1184 ierr = DMGetGlobalVector(dmGrad, &grad);CHKERRQ(ierr); 1185 ierr = DMPlexReconstructGradients_Internal(dm, fvm, fStart, fEnd, faceGeometryFVM, cellGeometryFVM, localX, grad);CHKERRQ(ierr); 1186 /* Communicate gradient values */ 1187 ierr = DMGetLocalVector(dmGrad, &locGrad);CHKERRQ(ierr); 1188 ierr = DMGlobalToLocalBegin(dmGrad, grad, INSERT_VALUES, locGrad);CHKERRQ(ierr); 1189 ierr = DMGlobalToLocalEnd(dmGrad, grad, INSERT_VALUES, locGrad);CHKERRQ(ierr); 1190 ierr = DMRestoreGlobalVector(dmGrad, &grad);CHKERRQ(ierr); 1191 /* Handle non-essential (e.g. outflow) boundary values */ 1192 ierr = DMPlexInsertBoundaryValues(dm, PETSC_FALSE, localX, 0.0, faceGeometryFVM, cellGeometryFVM, locGrad);CHKERRQ(ierr); 1193 ierr = VecGetArrayRead(locGrad, &lgrad);CHKERRQ(ierr); 1194 } 1195 ierr = PetscMalloc3(Nf,&lintegral,numCells*totDim,&u,numCells,&cgeomFEM);CHKERRQ(ierr); 1196 if (dmAux) {ierr = PetscMalloc1(numCells*totDimAux, &a);CHKERRQ(ierr);} 1197 for (f = 0; f < Nf; ++f) {lintegral[f] = 0.0;} 1198 for (c = cStart; c < cEnd; ++c) { 1199 PetscScalar *x = NULL; 1200 PetscInt i; 1201 1202 ierr = DMPlexComputeCellGeometryFEM(dm, c, NULL, cgeomFEM[c].v0, cgeomFEM[c].J, cgeomFEM[c].invJ, &cgeomFEM[c].detJ);CHKERRQ(ierr); 1203 if (cgeomFEM[c].detJ <= 0.0) SETERRQ2(PETSC_COMM_SELF, PETSC_ERR_ARG_OUTOFRANGE, "Invalid determinant %g for element %d", cgeomFEM[c].detJ, c); 1204 ierr = DMPlexVecGetClosure(dm, section, localX, c, NULL, &x);CHKERRQ(ierr); 1205 for (i = 0; i < totDim; ++i) u[c*totDim+i] = x[i]; 1206 ierr = DMPlexVecRestoreClosure(dm, section, localX, c, NULL, &x);CHKERRQ(ierr); 1207 if (dmAux) { 1208 ierr = DMPlexVecGetClosure(dmAux, sectionAux, A, c, NULL, &x);CHKERRQ(ierr); 1209 for (i = 0; i < totDimAux; ++i) a[c*totDimAux+i] = x[i]; 1210 ierr = DMPlexVecRestoreClosure(dmAux, sectionAux, A, c, NULL, &x);CHKERRQ(ierr); 1211 } 1212 } 1213 for (f = 0; f < Nf; ++f) { 1214 PetscObject obj; 1215 PetscClassId id; 1216 PetscInt numChunks, numBatches, batchSize, numBlocks, blockSize, Ne, Nr, offset; 1217 1218 ierr = PetscDSGetDiscretization(prob, f, &obj);CHKERRQ(ierr); 1219 ierr = PetscObjectGetClassId(obj, &id);CHKERRQ(ierr); 1220 if (id == PETSCFE_CLASSID) { 1221 PetscFE fe = (PetscFE) obj; 1222 PetscQuadrature q; 1223 PetscInt Nq, Nb; 1224 1225 ierr = PetscFEGetTileSizes(fe, NULL, &numBlocks, NULL, &numBatches);CHKERRQ(ierr); 1226 ierr = PetscFEGetQuadrature(fe, &q);CHKERRQ(ierr); 1227 ierr = PetscQuadratureGetData(q, NULL, NULL, &Nq, NULL, NULL);CHKERRQ(ierr); 1228 ierr = PetscFEGetDimension(fe, &Nb);CHKERRQ(ierr); 1229 blockSize = Nb*Nq; 1230 batchSize = numBlocks * blockSize; 1231 ierr = PetscFESetTileSizes(fe, blockSize, numBlocks, batchSize, numBatches);CHKERRQ(ierr); 1232 numChunks = numCells / (numBatches*batchSize); 1233 Ne = numChunks*numBatches*batchSize; 1234 Nr = numCells % (numBatches*batchSize); 1235 offset = numCells - Nr; 1236 ierr = PetscFEIntegrate(fe, prob, f, Ne, cgeomFEM, u, probAux, a, lintegral);CHKERRQ(ierr); 1237 ierr = PetscFEIntegrate(fe, prob, f, Nr, &cgeomFEM[offset], &u[offset*totDim], probAux, &a[offset*totDimAux], lintegral);CHKERRQ(ierr); 1238 } else if (id == PETSCFV_CLASSID) { 1239 /* PetscFV fv = (PetscFV) obj; */ 1240 PetscInt foff; 1241 PetscPointFunc obj_func; 1242 PetscScalar lint; 1243 1244 ierr = PetscDSGetObjective(prob, f, &obj_func);CHKERRQ(ierr); 1245 ierr = PetscDSGetFieldOffset(prob, f, &foff);CHKERRQ(ierr); 1246 if (obj_func) { 1247 for (c = 0; c < numCells; ++c) { 1248 PetscScalar *u_x; 1249 1250 ierr = DMPlexPointLocalRead(dmGrad, c, lgrad, &u_x);CHKERRQ(ierr); 1251 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); 1252 lintegral[f] += PetscRealPart(lint)*cgeomFVM[c].volume; 1253 } 1254 } 1255 } else SETERRQ1(PetscObjectComm((PetscObject) dm), PETSC_ERR_ARG_WRONG, "Unknown discretization type for field %d", f); 1256 } 1257 if (useFVM) { 1258 ierr = VecRestoreArrayRead(locGrad, &lgrad);CHKERRQ(ierr); 1259 ierr = VecRestoreArrayRead(faceGeometryFVM, (const PetscScalar **) &fgeomFVM);CHKERRQ(ierr); 1260 ierr = VecRestoreArrayRead(cellGeometryFVM, (const PetscScalar **) &cgeomFVM);CHKERRQ(ierr); 1261 ierr = DMRestoreLocalVector(dmGrad, &locGrad);CHKERRQ(ierr); 1262 ierr = VecDestroy(&faceGeometryFVM);CHKERRQ(ierr); 1263 ierr = VecDestroy(&cellGeometryFVM);CHKERRQ(ierr); 1264 ierr = DMDestroy(&dmGrad);CHKERRQ(ierr); 1265 } 1266 if (dmAux) {ierr = PetscFree(a);CHKERRQ(ierr);} 1267 if (mesh->printFEM) { 1268 ierr = PetscPrintf(PetscObjectComm((PetscObject) dm), "Local integral:");CHKERRQ(ierr); 1269 for (f = 0; f < Nf; ++f) {ierr = PetscPrintf(PetscObjectComm((PetscObject) dm), " %g", lintegral[f]);CHKERRQ(ierr);} 1270 ierr = PetscPrintf(PetscObjectComm((PetscObject) dm), "\n");CHKERRQ(ierr); 1271 } 1272 ierr = DMRestoreLocalVector(dm, &localX);CHKERRQ(ierr); 1273 ierr = MPIU_Allreduce(lintegral, integral, Nf, MPIU_REAL, MPIU_SUM, PetscObjectComm((PetscObject) dm));CHKERRQ(ierr); 1274 ierr = PetscFree3(lintegral,u,cgeomFEM);CHKERRQ(ierr); 1275 ierr = PetscLogEventEnd(DMPLEX_IntegralFEM,dm,0,0,0);CHKERRQ(ierr); 1276 PetscFunctionReturn(0); 1277 } 1278 1279 /*@ 1280 DMPlexComputeInterpolatorNested - Form the local portion of the interpolation matrix I from the coarse DM to the uniformly refined DM. 1281 1282 Input Parameters: 1283 + dmf - The fine mesh 1284 . dmc - The coarse mesh 1285 - user - The user context 1286 1287 Output Parameter: 1288 . In - The interpolation matrix 1289 1290 Level: developer 1291 1292 .seealso: DMPlexComputeInterpolatorGeneral(), DMPlexComputeJacobianFEM() 1293 @*/ 1294 PetscErrorCode DMPlexComputeInterpolatorNested(DM dmc, DM dmf, Mat In, void *user) 1295 { 1296 DM_Plex *mesh = (DM_Plex *) dmc->data; 1297 const char *name = "Interpolator"; 1298 PetscDS prob; 1299 PetscFE *feRef; 1300 PetscFV *fvRef; 1301 PetscSection fsection, fglobalSection; 1302 PetscSection csection, cglobalSection; 1303 PetscScalar *elemMat; 1304 PetscInt dim, Nf, f, fieldI, fieldJ, offsetI, offsetJ, cStart, cEnd, cEndInterior, c; 1305 PetscInt cTotDim, rTotDim = 0; 1306 PetscErrorCode ierr; 1307 1308 PetscFunctionBegin; 1309 ierr = PetscLogEventBegin(DMPLEX_InterpolatorFEM,dmc,dmf,0,0);CHKERRQ(ierr); 1310 ierr = DMGetDimension(dmf, &dim);CHKERRQ(ierr); 1311 ierr = DMGetDefaultSection(dmf, &fsection);CHKERRQ(ierr); 1312 ierr = DMGetDefaultGlobalSection(dmf, &fglobalSection);CHKERRQ(ierr); 1313 ierr = DMGetDefaultSection(dmc, &csection);CHKERRQ(ierr); 1314 ierr = DMGetDefaultGlobalSection(dmc, &cglobalSection);CHKERRQ(ierr); 1315 ierr = PetscSectionGetNumFields(fsection, &Nf);CHKERRQ(ierr); 1316 ierr = DMPlexGetHeightStratum(dmc, 0, &cStart, &cEnd);CHKERRQ(ierr); 1317 ierr = DMPlexGetHybridBounds(dmc, &cEndInterior, NULL, NULL, NULL);CHKERRQ(ierr); 1318 cEnd = cEndInterior < 0 ? cEnd : cEndInterior; 1319 ierr = DMGetDS(dmf, &prob);CHKERRQ(ierr); 1320 ierr = PetscCalloc2(Nf,&feRef,Nf,&fvRef);CHKERRQ(ierr); 1321 for (f = 0; f < Nf; ++f) { 1322 PetscObject obj; 1323 PetscClassId id; 1324 PetscInt rNb = 0, Nc = 0; 1325 1326 ierr = PetscDSGetDiscretization(prob, f, &obj);CHKERRQ(ierr); 1327 ierr = PetscObjectGetClassId(obj, &id);CHKERRQ(ierr); 1328 if (id == PETSCFE_CLASSID) { 1329 PetscFE fe = (PetscFE) obj; 1330 1331 ierr = PetscFERefine(fe, &feRef[f]);CHKERRQ(ierr); 1332 ierr = PetscFEGetDimension(feRef[f], &rNb);CHKERRQ(ierr); 1333 ierr = PetscFEGetNumComponents(fe, &Nc);CHKERRQ(ierr); 1334 } else if (id == PETSCFV_CLASSID) { 1335 PetscFV fv = (PetscFV) obj; 1336 PetscDualSpace Q; 1337 1338 ierr = PetscFVRefine(fv, &fvRef[f]);CHKERRQ(ierr); 1339 ierr = PetscFVGetDualSpace(fvRef[f], &Q);CHKERRQ(ierr); 1340 ierr = PetscDualSpaceGetDimension(Q, &rNb);CHKERRQ(ierr); 1341 ierr = PetscFVGetNumComponents(fv, &Nc);CHKERRQ(ierr); 1342 } 1343 rTotDim += rNb; 1344 } 1345 ierr = PetscDSGetTotalDimension(prob, &cTotDim);CHKERRQ(ierr); 1346 ierr = PetscMalloc1(rTotDim*cTotDim,&elemMat);CHKERRQ(ierr); 1347 ierr = PetscMemzero(elemMat, rTotDim*cTotDim * sizeof(PetscScalar));CHKERRQ(ierr); 1348 for (fieldI = 0, offsetI = 0; fieldI < Nf; ++fieldI) { 1349 PetscDualSpace Qref; 1350 PetscQuadrature f; 1351 const PetscReal *qpoints, *qweights; 1352 PetscReal *points; 1353 PetscInt npoints = 0, Nc, Np, fpdim, i, k, p, d; 1354 1355 /* Compose points from all dual basis functionals */ 1356 if (feRef[fieldI]) { 1357 ierr = PetscFEGetDualSpace(feRef[fieldI], &Qref);CHKERRQ(ierr); 1358 ierr = PetscFEGetNumComponents(feRef[fieldI], &Nc);CHKERRQ(ierr); 1359 } else { 1360 ierr = PetscFVGetDualSpace(fvRef[fieldI], &Qref);CHKERRQ(ierr); 1361 ierr = PetscFVGetNumComponents(fvRef[fieldI], &Nc);CHKERRQ(ierr); 1362 } 1363 ierr = PetscDualSpaceGetDimension(Qref, &fpdim);CHKERRQ(ierr); 1364 for (i = 0; i < fpdim; ++i) { 1365 ierr = PetscDualSpaceGetFunctional(Qref, i, &f);CHKERRQ(ierr); 1366 ierr = PetscQuadratureGetData(f, NULL, NULL, &Np, NULL, NULL);CHKERRQ(ierr); 1367 npoints += Np; 1368 } 1369 ierr = PetscMalloc1(npoints*dim,&points);CHKERRQ(ierr); 1370 for (i = 0, k = 0; i < fpdim; ++i) { 1371 ierr = PetscDualSpaceGetFunctional(Qref, i, &f);CHKERRQ(ierr); 1372 ierr = PetscQuadratureGetData(f, NULL, NULL, &Np, &qpoints, NULL);CHKERRQ(ierr); 1373 for (p = 0; p < Np; ++p, ++k) for (d = 0; d < dim; ++d) points[k*dim+d] = qpoints[p*dim+d]; 1374 } 1375 1376 for (fieldJ = 0, offsetJ = 0; fieldJ < Nf; ++fieldJ) { 1377 PetscObject obj; 1378 PetscClassId id; 1379 PetscReal *B; 1380 PetscInt NcJ = 0, cpdim = 0, j, qNc; 1381 1382 ierr = PetscDSGetDiscretization(prob, fieldJ, &obj);CHKERRQ(ierr); 1383 ierr = PetscObjectGetClassId(obj, &id);CHKERRQ(ierr); 1384 if (id == PETSCFE_CLASSID) { 1385 PetscFE fe = (PetscFE) obj; 1386 1387 /* Evaluate basis at points */ 1388 ierr = PetscFEGetNumComponents(fe, &NcJ);CHKERRQ(ierr); 1389 ierr = PetscFEGetDimension(fe, &cpdim);CHKERRQ(ierr); 1390 /* For now, fields only interpolate themselves */ 1391 if (fieldI == fieldJ) { 1392 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); 1393 ierr = PetscFEGetTabulation(fe, npoints, points, &B, NULL, NULL);CHKERRQ(ierr); 1394 for (i = 0, k = 0; i < fpdim; ++i) { 1395 ierr = PetscDualSpaceGetFunctional(Qref, i, &f);CHKERRQ(ierr); 1396 ierr = PetscQuadratureGetData(f, NULL, &qNc, &Np, NULL, &qweights);CHKERRQ(ierr); 1397 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); 1398 for (p = 0; p < Np; ++p, ++k) { 1399 for (j = 0; j < cpdim; ++j) { 1400 /* NOTE: This is not quite right, unless fpdim == number of fine grid functional quad points */ 1401 for (c = 0; c < Nc; ++c) elemMat[(offsetI + i)*cTotDim + offsetJ + j] += B[k*cpdim*NcJ+j*Nc+c]*qweights[p*qNc+c]; 1402 } 1403 } 1404 } 1405 ierr = PetscFERestoreTabulation(fe, npoints, points, &B, NULL, NULL);CHKERRQ(ierr);CHKERRQ(ierr); 1406 } 1407 } else if (id == PETSCFV_CLASSID) { 1408 PetscFV fv = (PetscFV) obj; 1409 1410 /* Evaluate constant function at points */ 1411 ierr = PetscFVGetNumComponents(fv, &NcJ);CHKERRQ(ierr); 1412 cpdim = 1; 1413 /* For now, fields only interpolate themselves */ 1414 if (fieldI == fieldJ) { 1415 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); 1416 for (i = 0, k = 0; i < fpdim; ++i) { 1417 ierr = PetscDualSpaceGetFunctional(Qref, i, &f);CHKERRQ(ierr); 1418 ierr = PetscQuadratureGetData(f, NULL, &qNc, &Np, NULL, &qweights);CHKERRQ(ierr); 1419 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); 1420 for (p = 0; p < Np; ++p, ++k) { 1421 for (j = 0; j < cpdim; ++j) { 1422 for (c = 0; c < Nc; ++c) elemMat[(offsetI + i*Nc + c)*cTotDim + offsetJ + j*NcJ + c] += 1.0*qweights[p*qNc+c]; 1423 } 1424 } 1425 } 1426 } 1427 } 1428 offsetJ += cpdim*NcJ; 1429 } 1430 offsetI += fpdim*Nc; 1431 ierr = PetscFree(points);CHKERRQ(ierr); 1432 } 1433 if (mesh->printFEM > 1) {ierr = DMPrintCellMatrix(0, name, rTotDim, cTotDim, elemMat);CHKERRQ(ierr);} 1434 /* Preallocate matrix */ 1435 { 1436 Mat preallocator; 1437 PetscScalar *vals; 1438 PetscInt *cellCIndices, *cellFIndices; 1439 PetscInt locRows, locCols, cell; 1440 1441 ierr = MatGetLocalSize(In, &locRows, &locCols);CHKERRQ(ierr); 1442 ierr = MatCreate(PetscObjectComm((PetscObject) In), &preallocator);CHKERRQ(ierr); 1443 ierr = MatSetType(preallocator, MATPREALLOCATOR);CHKERRQ(ierr); 1444 ierr = MatSetSizes(preallocator, locRows, locCols, PETSC_DETERMINE, PETSC_DETERMINE);CHKERRQ(ierr); 1445 ierr = MatSetUp(preallocator);CHKERRQ(ierr); 1446 ierr = PetscCalloc3(rTotDim*cTotDim, &vals,cTotDim,&cellCIndices,rTotDim,&cellFIndices);CHKERRQ(ierr); 1447 for (cell = cStart; cell < cEnd; ++cell) { 1448 ierr = DMPlexMatGetClosureIndicesRefined(dmf, fsection, fglobalSection, dmc, csection, cglobalSection, cell, cellCIndices, cellFIndices);CHKERRQ(ierr); 1449 ierr = MatSetValues(preallocator, rTotDim, cellFIndices, cTotDim, cellCIndices, vals, INSERT_VALUES);CHKERRQ(ierr); 1450 } 1451 ierr = PetscFree3(vals,cellCIndices,cellFIndices);CHKERRQ(ierr); 1452 ierr = MatAssemblyBegin(preallocator, MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 1453 ierr = MatAssemblyEnd(preallocator, MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 1454 ierr = MatPreallocatorPreallocate(preallocator, PETSC_TRUE, In);CHKERRQ(ierr); 1455 ierr = MatDestroy(&preallocator);CHKERRQ(ierr); 1456 } 1457 /* Fill matrix */ 1458 ierr = MatZeroEntries(In);CHKERRQ(ierr); 1459 for (c = cStart; c < cEnd; ++c) { 1460 ierr = DMPlexMatSetClosureRefined(dmf, fsection, fglobalSection, dmc, csection, cglobalSection, In, c, elemMat, INSERT_VALUES);CHKERRQ(ierr); 1461 } 1462 for (f = 0; f < Nf; ++f) {ierr = PetscFEDestroy(&feRef[f]);CHKERRQ(ierr);} 1463 ierr = PetscFree2(feRef,fvRef);CHKERRQ(ierr); 1464 ierr = PetscFree(elemMat);CHKERRQ(ierr); 1465 ierr = MatAssemblyBegin(In, MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 1466 ierr = MatAssemblyEnd(In, MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 1467 if (mesh->printFEM) { 1468 ierr = PetscPrintf(PETSC_COMM_WORLD, "%s:\n", name);CHKERRQ(ierr); 1469 ierr = MatChop(In, 1.0e-10);CHKERRQ(ierr); 1470 ierr = MatView(In, PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr); 1471 } 1472 ierr = PetscLogEventEnd(DMPLEX_InterpolatorFEM,dmc,dmf,0,0);CHKERRQ(ierr); 1473 PetscFunctionReturn(0); 1474 } 1475 1476 /*@ 1477 DMPlexComputeInterpolatorGeneral - Form the local portion of the interpolation matrix I from the coarse DM to a non-nested fine DM. 1478 1479 Input Parameters: 1480 + dmf - The fine mesh 1481 . dmc - The coarse mesh 1482 - user - The user context 1483 1484 Output Parameter: 1485 . In - The interpolation matrix 1486 1487 Level: developer 1488 1489 .seealso: DMPlexComputeInterpolatorNested(), DMPlexComputeJacobianFEM() 1490 @*/ 1491 PetscErrorCode DMPlexComputeInterpolatorGeneral(DM dmc, DM dmf, Mat In, void *user) 1492 { 1493 DM_Plex *mesh = (DM_Plex *) dmf->data; 1494 const char *name = "Interpolator"; 1495 PetscDS prob; 1496 PetscSection fsection, csection, globalFSection, globalCSection; 1497 PetscHashJK ht; 1498 PetscLayout rLayout; 1499 PetscInt *dnz, *onz; 1500 PetscInt locRows, rStart, rEnd; 1501 PetscReal *x, *v0, *J, *invJ, detJ; 1502 PetscReal *v0c, *Jc, *invJc, detJc; 1503 PetscScalar *elemMat; 1504 PetscInt dim, Nf, field, totDim, cStart, cEnd, cell, ccell; 1505 PetscErrorCode ierr; 1506 1507 PetscFunctionBegin; 1508 ierr = PetscLogEventBegin(DMPLEX_InterpolatorFEM,dmc,dmf,0,0);CHKERRQ(ierr); 1509 ierr = DMGetCoordinateDim(dmc, &dim);CHKERRQ(ierr); 1510 ierr = DMGetDS(dmc, &prob);CHKERRQ(ierr); 1511 ierr = PetscDSGetRefCoordArrays(prob, &x, NULL);CHKERRQ(ierr); 1512 ierr = PetscDSGetNumFields(prob, &Nf);CHKERRQ(ierr); 1513 ierr = PetscMalloc3(dim,&v0,dim*dim,&J,dim*dim,&invJ);CHKERRQ(ierr); 1514 ierr = PetscMalloc3(dim,&v0c,dim*dim,&Jc,dim*dim,&invJc);CHKERRQ(ierr); 1515 ierr = DMGetDefaultSection(dmf, &fsection);CHKERRQ(ierr); 1516 ierr = DMGetDefaultGlobalSection(dmf, &globalFSection);CHKERRQ(ierr); 1517 ierr = DMGetDefaultSection(dmc, &csection);CHKERRQ(ierr); 1518 ierr = DMGetDefaultGlobalSection(dmc, &globalCSection);CHKERRQ(ierr); 1519 ierr = DMPlexGetHeightStratum(dmf, 0, &cStart, &cEnd);CHKERRQ(ierr); 1520 ierr = PetscDSGetTotalDimension(prob, &totDim);CHKERRQ(ierr); 1521 ierr = PetscMalloc1(totDim, &elemMat);CHKERRQ(ierr); 1522 1523 ierr = MatGetLocalSize(In, &locRows, NULL);CHKERRQ(ierr); 1524 ierr = PetscLayoutCreate(PetscObjectComm((PetscObject) In), &rLayout);CHKERRQ(ierr); 1525 ierr = PetscLayoutSetLocalSize(rLayout, locRows);CHKERRQ(ierr); 1526 ierr = PetscLayoutSetBlockSize(rLayout, 1);CHKERRQ(ierr); 1527 ierr = PetscLayoutSetUp(rLayout);CHKERRQ(ierr); 1528 ierr = PetscLayoutGetRange(rLayout, &rStart, &rEnd);CHKERRQ(ierr); 1529 ierr = PetscLayoutDestroy(&rLayout);CHKERRQ(ierr); 1530 ierr = PetscCalloc2(locRows,&dnz,locRows,&onz);CHKERRQ(ierr); 1531 ierr = PetscHashJKCreate(&ht);CHKERRQ(ierr); 1532 for (field = 0; field < Nf; ++field) { 1533 PetscObject obj; 1534 PetscClassId id; 1535 PetscDualSpace Q = NULL; 1536 PetscQuadrature f; 1537 const PetscReal *qpoints; 1538 PetscInt Nc, Np, fpdim, i, d; 1539 1540 ierr = PetscDSGetDiscretization(prob, field, &obj);CHKERRQ(ierr); 1541 ierr = PetscObjectGetClassId(obj, &id);CHKERRQ(ierr); 1542 if (id == PETSCFE_CLASSID) { 1543 PetscFE fe = (PetscFE) obj; 1544 1545 ierr = PetscFEGetDualSpace(fe, &Q);CHKERRQ(ierr); 1546 ierr = PetscFEGetNumComponents(fe, &Nc);CHKERRQ(ierr); 1547 } else if (id == PETSCFV_CLASSID) { 1548 PetscFV fv = (PetscFV) obj; 1549 1550 ierr = PetscFVGetDualSpace(fv, &Q);CHKERRQ(ierr); 1551 Nc = 1; 1552 } 1553 ierr = PetscDualSpaceGetDimension(Q, &fpdim);CHKERRQ(ierr); 1554 /* For each fine grid cell */ 1555 for (cell = cStart; cell < cEnd; ++cell) { 1556 PetscInt *findices, *cindices; 1557 PetscInt numFIndices, numCIndices; 1558 1559 ierr = DMPlexGetClosureIndices(dmf, fsection, globalFSection, cell, &numFIndices, &findices, NULL);CHKERRQ(ierr); 1560 ierr = DMPlexComputeCellGeometryFEM(dmf, cell, NULL, v0, J, invJ, &detJ);CHKERRQ(ierr); 1561 if (numFIndices != fpdim) SETERRQ2(PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "Number of fine indices %d != %d dual basis vecs", numFIndices, fpdim); 1562 for (i = 0; i < fpdim; ++i) { 1563 Vec pointVec; 1564 PetscScalar *pV; 1565 PetscSF coarseCellSF = NULL; 1566 const PetscSFNode *coarseCells; 1567 PetscInt numCoarseCells, q, c; 1568 1569 /* Get points from the dual basis functional quadrature */ 1570 ierr = PetscDualSpaceGetFunctional(Q, i, &f);CHKERRQ(ierr); 1571 ierr = PetscQuadratureGetData(f, NULL, NULL, &Np, &qpoints, NULL);CHKERRQ(ierr); 1572 ierr = VecCreateSeq(PETSC_COMM_SELF, Np*dim, &pointVec);CHKERRQ(ierr); 1573 ierr = VecSetBlockSize(pointVec, dim);CHKERRQ(ierr); 1574 ierr = VecGetArray(pointVec, &pV);CHKERRQ(ierr); 1575 for (q = 0; q < Np; ++q) { 1576 /* Transform point to real space */ 1577 CoordinatesRefToReal(dim, dim, v0, J, &qpoints[q*dim], x); 1578 for (d = 0; d < dim; ++d) pV[q*dim+d] = x[d]; 1579 } 1580 ierr = VecRestoreArray(pointVec, &pV);CHKERRQ(ierr); 1581 /* Get set of coarse cells that overlap points (would like to group points by coarse cell) */ 1582 /* OPT: Pack all quad points from fine cell */ 1583 ierr = DMLocatePoints(dmc, pointVec, DM_POINTLOCATION_NEAREST, &coarseCellSF);CHKERRQ(ierr); 1584 ierr = PetscSFViewFromOptions(coarseCellSF, NULL, "-interp_sf_view");CHKERRQ(ierr); 1585 /* Update preallocation info */ 1586 ierr = PetscSFGetGraph(coarseCellSF, NULL, &numCoarseCells, NULL, &coarseCells);CHKERRQ(ierr); 1587 if (numCoarseCells != Np) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_PLIB,"Not all closure points located"); 1588 { 1589 PetscHashJKKey key; 1590 PetscHashJKIter missing, iter; 1591 1592 key.j = findices[i]; 1593 if (key.j >= 0) { 1594 /* Get indices for coarse elements */ 1595 for (ccell = 0; ccell < numCoarseCells; ++ccell) { 1596 ierr = DMPlexGetClosureIndices(dmc, csection, globalCSection, coarseCells[ccell].index, &numCIndices, &cindices, NULL);CHKERRQ(ierr); 1597 for (c = 0; c < numCIndices; ++c) { 1598 key.k = cindices[c]; 1599 if (key.k < 0) continue; 1600 ierr = PetscHashJKPut(ht, key, &missing, &iter);CHKERRQ(ierr); 1601 if (missing) { 1602 ierr = PetscHashJKSet(ht, iter, 1);CHKERRQ(ierr); 1603 if ((key.k >= rStart) && (key.k < rEnd)) ++dnz[key.j-rStart]; 1604 else ++onz[key.j-rStart]; 1605 } 1606 } 1607 ierr = DMPlexRestoreClosureIndices(dmc, csection, globalCSection, coarseCells[ccell].index, &numCIndices, &cindices, NULL);CHKERRQ(ierr); 1608 } 1609 } 1610 } 1611 ierr = PetscSFDestroy(&coarseCellSF);CHKERRQ(ierr); 1612 ierr = VecDestroy(&pointVec);CHKERRQ(ierr); 1613 } 1614 ierr = DMPlexRestoreClosureIndices(dmf, fsection, globalFSection, cell, &numFIndices, &findices, NULL);CHKERRQ(ierr); 1615 } 1616 } 1617 ierr = PetscHashJKDestroy(&ht);CHKERRQ(ierr); 1618 ierr = MatXAIJSetPreallocation(In, 1, dnz, onz, NULL, NULL);CHKERRQ(ierr); 1619 ierr = MatSetOption(In, MAT_NEW_NONZERO_ALLOCATION_ERR,PETSC_TRUE);CHKERRQ(ierr); 1620 ierr = PetscFree2(dnz,onz);CHKERRQ(ierr); 1621 for (field = 0; field < Nf; ++field) { 1622 PetscObject obj; 1623 PetscClassId id; 1624 PetscDualSpace Q = NULL; 1625 PetscQuadrature f; 1626 const PetscReal *qpoints, *qweights; 1627 PetscInt Nc, qNc, Np, fpdim, i, d; 1628 1629 ierr = PetscDSGetDiscretization(prob, field, &obj);CHKERRQ(ierr); 1630 ierr = PetscObjectGetClassId(obj, &id);CHKERRQ(ierr); 1631 if (id == PETSCFE_CLASSID) { 1632 PetscFE fe = (PetscFE) obj; 1633 1634 ierr = PetscFEGetDualSpace(fe, &Q);CHKERRQ(ierr); 1635 ierr = PetscFEGetNumComponents(fe, &Nc);CHKERRQ(ierr); 1636 } else if (id == PETSCFV_CLASSID) { 1637 PetscFV fv = (PetscFV) obj; 1638 1639 ierr = PetscFVGetDualSpace(fv, &Q);CHKERRQ(ierr); 1640 Nc = 1; 1641 } 1642 ierr = PetscDualSpaceGetDimension(Q, &fpdim);CHKERRQ(ierr); 1643 /* For each fine grid cell */ 1644 for (cell = cStart; cell < cEnd; ++cell) { 1645 PetscInt *findices, *cindices; 1646 PetscInt numFIndices, numCIndices; 1647 1648 ierr = DMPlexGetClosureIndices(dmf, fsection, globalFSection, cell, &numFIndices, &findices, NULL);CHKERRQ(ierr); 1649 ierr = DMPlexComputeCellGeometryFEM(dmf, cell, NULL, v0, J, invJ, &detJ);CHKERRQ(ierr); 1650 if (numFIndices != fpdim) SETERRQ2(PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "Number of fine indices %d != %d dual basis vecs", numFIndices, fpdim); 1651 for (i = 0; i < fpdim; ++i) { 1652 Vec pointVec; 1653 PetscScalar *pV; 1654 PetscSF coarseCellSF = NULL; 1655 const PetscSFNode *coarseCells; 1656 PetscInt numCoarseCells, cpdim, q, c, j; 1657 1658 /* Get points from the dual basis functional quadrature */ 1659 ierr = PetscDualSpaceGetFunctional(Q, i, &f);CHKERRQ(ierr); 1660 ierr = PetscQuadratureGetData(f, NULL, &qNc, &Np, &qpoints, &qweights);CHKERRQ(ierr); 1661 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); 1662 ierr = VecCreateSeq(PETSC_COMM_SELF, Np*dim, &pointVec);CHKERRQ(ierr); 1663 ierr = VecSetBlockSize(pointVec, dim);CHKERRQ(ierr); 1664 ierr = VecGetArray(pointVec, &pV);CHKERRQ(ierr); 1665 for (q = 0; q < Np; ++q) { 1666 /* Transform point to real space */ 1667 CoordinatesRefToReal(dim, dim, v0, J, &qpoints[q*dim], x); 1668 for (d = 0; d < dim; ++d) pV[q*dim+d] = x[d]; 1669 } 1670 ierr = VecRestoreArray(pointVec, &pV);CHKERRQ(ierr); 1671 /* Get set of coarse cells that overlap points (would like to group points by coarse cell) */ 1672 /* OPT: Read this out from preallocation information */ 1673 ierr = DMLocatePoints(dmc, pointVec, DM_POINTLOCATION_NEAREST, &coarseCellSF);CHKERRQ(ierr); 1674 /* Update preallocation info */ 1675 ierr = PetscSFGetGraph(coarseCellSF, NULL, &numCoarseCells, NULL, &coarseCells);CHKERRQ(ierr); 1676 if (numCoarseCells != Np) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_PLIB,"Not all closure points located"); 1677 ierr = VecGetArray(pointVec, &pV);CHKERRQ(ierr); 1678 for (ccell = 0; ccell < numCoarseCells; ++ccell) { 1679 PetscReal pVReal[3]; 1680 1681 ierr = DMPlexGetClosureIndices(dmc, csection, globalCSection, coarseCells[ccell].index, &numCIndices, &cindices, NULL);CHKERRQ(ierr); 1682 /* Transform points from real space to coarse reference space */ 1683 ierr = DMPlexComputeCellGeometryFEM(dmc, coarseCells[ccell].index, NULL, v0c, Jc, invJc, &detJc);CHKERRQ(ierr); 1684 for (d = 0; d < dim; ++d) pVReal[d] = PetscRealPart(pV[ccell*dim+d]); 1685 CoordinatesRealToRef(dim, dim, v0c, invJc, pVReal, x); 1686 1687 if (id == PETSCFE_CLASSID) { 1688 PetscFE fe = (PetscFE) obj; 1689 PetscReal *B; 1690 1691 /* Evaluate coarse basis on contained point */ 1692 ierr = PetscFEGetDimension(fe, &cpdim);CHKERRQ(ierr); 1693 ierr = PetscFEGetTabulation(fe, 1, x, &B, NULL, NULL);CHKERRQ(ierr); 1694 ierr = PetscMemzero(elemMat, cpdim * sizeof(PetscScalar));CHKERRQ(ierr); 1695 /* Get elemMat entries by multiplying by weight */ 1696 for (j = 0; j < cpdim; ++j) { 1697 for (c = 0; c < Nc; ++c) elemMat[j] += B[j*Nc + c]*qweights[ccell*qNc + c]; 1698 } 1699 ierr = PetscFERestoreTabulation(fe, 1, x, &B, NULL, NULL);CHKERRQ(ierr);CHKERRQ(ierr); 1700 } else { 1701 cpdim = 1; 1702 for (j = 0; j < cpdim; ++j) { 1703 for (c = 0; c < Nc; ++c) elemMat[j] += 1.0*qweights[ccell*qNc + c]; 1704 } 1705 } 1706 /* Update interpolator */ 1707 if (mesh->printFEM > 1) {ierr = DMPrintCellMatrix(cell, name, 1, numCIndices, elemMat);CHKERRQ(ierr);} 1708 if (numCIndices != cpdim) SETERRQ2(PETSC_COMM_SELF, PETSC_ERR_PLIB, "Number of element matrix columns %D != %D", numCIndices, cpdim); 1709 ierr = MatSetValues(In, 1, &findices[i], numCIndices, cindices, elemMat, INSERT_VALUES);CHKERRQ(ierr); 1710 ierr = DMPlexRestoreClosureIndices(dmc, csection, globalCSection, coarseCells[ccell].index, &numCIndices, &cindices, NULL);CHKERRQ(ierr); 1711 } 1712 ierr = VecRestoreArray(pointVec, &pV);CHKERRQ(ierr); 1713 ierr = PetscSFDestroy(&coarseCellSF);CHKERRQ(ierr); 1714 ierr = VecDestroy(&pointVec);CHKERRQ(ierr); 1715 } 1716 ierr = DMPlexRestoreClosureIndices(dmf, fsection, globalFSection, cell, &numFIndices, &findices, NULL);CHKERRQ(ierr); 1717 } 1718 } 1719 ierr = PetscFree3(v0,J,invJ);CHKERRQ(ierr); 1720 ierr = PetscFree3(v0c,Jc,invJc);CHKERRQ(ierr); 1721 ierr = PetscFree(elemMat);CHKERRQ(ierr); 1722 ierr = MatAssemblyBegin(In, MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 1723 ierr = MatAssemblyEnd(In, MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 1724 ierr = PetscLogEventEnd(DMPLEX_InterpolatorFEM,dmc,dmf,0,0);CHKERRQ(ierr); 1725 PetscFunctionReturn(0); 1726 } 1727 1728 /*@ 1729 DMPlexComputeInjectorFEM - Compute a mapping from coarse unknowns to fine unknowns 1730 1731 Input Parameters: 1732 + dmc - The coarse mesh 1733 - dmf - The fine mesh 1734 - user - The user context 1735 1736 Output Parameter: 1737 . sc - The mapping 1738 1739 Level: developer 1740 1741 .seealso: DMPlexComputeInterpolatorNested(), DMPlexComputeJacobianFEM() 1742 @*/ 1743 PetscErrorCode DMPlexComputeInjectorFEM(DM dmc, DM dmf, VecScatter *sc, void *user) 1744 { 1745 PetscDS prob; 1746 PetscFE *feRef; 1747 PetscFV *fvRef; 1748 Vec fv, cv; 1749 IS fis, cis; 1750 PetscSection fsection, fglobalSection, csection, cglobalSection; 1751 PetscInt *cmap, *cellCIndices, *cellFIndices, *cindices, *findices; 1752 PetscInt cTotDim, fTotDim = 0, Nf, f, field, cStart, cEnd, cEndInterior, c, dim, d, startC, endC, offsetC, offsetF, m; 1753 PetscErrorCode ierr; 1754 1755 PetscFunctionBegin; 1756 ierr = PetscLogEventBegin(DMPLEX_InjectorFEM,dmc,dmf,0,0);CHKERRQ(ierr); 1757 ierr = DMGetDimension(dmf, &dim);CHKERRQ(ierr); 1758 ierr = DMGetDefaultSection(dmf, &fsection);CHKERRQ(ierr); 1759 ierr = DMGetDefaultGlobalSection(dmf, &fglobalSection);CHKERRQ(ierr); 1760 ierr = DMGetDefaultSection(dmc, &csection);CHKERRQ(ierr); 1761 ierr = DMGetDefaultGlobalSection(dmc, &cglobalSection);CHKERRQ(ierr); 1762 ierr = PetscSectionGetNumFields(fsection, &Nf);CHKERRQ(ierr); 1763 ierr = DMPlexGetHeightStratum(dmc, 0, &cStart, &cEnd);CHKERRQ(ierr); 1764 ierr = DMPlexGetHybridBounds(dmc, &cEndInterior, NULL, NULL, NULL);CHKERRQ(ierr); 1765 cEnd = cEndInterior < 0 ? cEnd : cEndInterior; 1766 ierr = DMGetDS(dmc, &prob);CHKERRQ(ierr); 1767 ierr = PetscCalloc2(Nf,&feRef,Nf,&fvRef);CHKERRQ(ierr); 1768 for (f = 0; f < Nf; ++f) { 1769 PetscObject obj; 1770 PetscClassId id; 1771 PetscInt fNb = 0, Nc = 0; 1772 1773 ierr = PetscDSGetDiscretization(prob, f, &obj);CHKERRQ(ierr); 1774 ierr = PetscObjectGetClassId(obj, &id);CHKERRQ(ierr); 1775 if (id == PETSCFE_CLASSID) { 1776 PetscFE fe = (PetscFE) obj; 1777 1778 ierr = PetscFERefine(fe, &feRef[f]);CHKERRQ(ierr); 1779 ierr = PetscFEGetDimension(feRef[f], &fNb);CHKERRQ(ierr); 1780 ierr = PetscFEGetNumComponents(fe, &Nc);CHKERRQ(ierr); 1781 } else if (id == PETSCFV_CLASSID) { 1782 PetscFV fv = (PetscFV) obj; 1783 PetscDualSpace Q; 1784 1785 ierr = PetscFVRefine(fv, &fvRef[f]);CHKERRQ(ierr); 1786 ierr = PetscFVGetDualSpace(fvRef[f], &Q);CHKERRQ(ierr); 1787 ierr = PetscDualSpaceGetDimension(Q, &fNb);CHKERRQ(ierr); 1788 ierr = PetscFVGetNumComponents(fv, &Nc);CHKERRQ(ierr); 1789 } 1790 fTotDim += fNb*Nc; 1791 } 1792 ierr = PetscDSGetTotalDimension(prob, &cTotDim);CHKERRQ(ierr); 1793 ierr = PetscMalloc1(cTotDim,&cmap);CHKERRQ(ierr); 1794 for (field = 0, offsetC = 0, offsetF = 0; field < Nf; ++field) { 1795 PetscFE feC; 1796 PetscFV fvC; 1797 PetscDualSpace QF, QC; 1798 PetscInt NcF, NcC, fpdim, cpdim; 1799 1800 if (feRef[field]) { 1801 ierr = PetscDSGetDiscretization(prob, field, (PetscObject *) &feC);CHKERRQ(ierr); 1802 ierr = PetscFEGetNumComponents(feC, &NcC);CHKERRQ(ierr); 1803 ierr = PetscFEGetNumComponents(feRef[field], &NcF);CHKERRQ(ierr); 1804 ierr = PetscFEGetDualSpace(feRef[field], &QF);CHKERRQ(ierr); 1805 ierr = PetscDualSpaceGetDimension(QF, &fpdim);CHKERRQ(ierr); 1806 ierr = PetscFEGetDualSpace(feC, &QC);CHKERRQ(ierr); 1807 ierr = PetscDualSpaceGetDimension(QC, &cpdim);CHKERRQ(ierr); 1808 } else { 1809 ierr = PetscDSGetDiscretization(prob, field, (PetscObject *) &fvC);CHKERRQ(ierr); 1810 ierr = PetscFVGetNumComponents(fvC, &NcC);CHKERRQ(ierr); 1811 ierr = PetscFVGetNumComponents(fvRef[field], &NcF);CHKERRQ(ierr); 1812 ierr = PetscFVGetDualSpace(fvRef[field], &QF);CHKERRQ(ierr); 1813 ierr = PetscDualSpaceGetDimension(QF, &fpdim);CHKERRQ(ierr); 1814 ierr = PetscFVGetDualSpace(fvC, &QC);CHKERRQ(ierr); 1815 ierr = PetscDualSpaceGetDimension(QC, &cpdim);CHKERRQ(ierr); 1816 } 1817 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); 1818 for (c = 0; c < cpdim; ++c) { 1819 PetscQuadrature cfunc; 1820 const PetscReal *cqpoints; 1821 PetscInt NpC; 1822 PetscBool found = PETSC_FALSE; 1823 1824 ierr = PetscDualSpaceGetFunctional(QC, c, &cfunc);CHKERRQ(ierr); 1825 ierr = PetscQuadratureGetData(cfunc, NULL, NULL, &NpC, &cqpoints, NULL);CHKERRQ(ierr); 1826 if (NpC != 1 && feRef[field]) SETERRQ(PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "Do not know how to do injection for moments"); 1827 for (f = 0; f < fpdim; ++f) { 1828 PetscQuadrature ffunc; 1829 const PetscReal *fqpoints; 1830 PetscReal sum = 0.0; 1831 PetscInt NpF, comp; 1832 1833 ierr = PetscDualSpaceGetFunctional(QF, f, &ffunc);CHKERRQ(ierr); 1834 ierr = PetscQuadratureGetData(ffunc, NULL, NULL, &NpF, &fqpoints, NULL);CHKERRQ(ierr); 1835 if (NpC != NpF) continue; 1836 for (d = 0; d < dim; ++d) sum += PetscAbsReal(cqpoints[d] - fqpoints[d]); 1837 if (sum > 1.0e-9) continue; 1838 for (comp = 0; comp < NcC; ++comp) { 1839 cmap[(offsetC+c)*NcC+comp] = (offsetF+f)*NcF+comp; 1840 } 1841 found = PETSC_TRUE; 1842 break; 1843 } 1844 if (!found) { 1845 /* TODO We really want the average here, but some asshole put VecScatter in the interface */ 1846 if (fvRef[field]) { 1847 PetscInt comp; 1848 for (comp = 0; comp < NcC; ++comp) { 1849 cmap[(offsetC+c)*NcC+comp] = (offsetF+0)*NcF+comp; 1850 } 1851 } else SETERRQ(PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "Could not locate matching functional for injection"); 1852 } 1853 } 1854 offsetC += cpdim*NcC; 1855 offsetF += fpdim*NcF; 1856 } 1857 for (f = 0; f < Nf; ++f) {ierr = PetscFEDestroy(&feRef[f]);CHKERRQ(ierr);ierr = PetscFVDestroy(&fvRef[f]);CHKERRQ(ierr);} 1858 ierr = PetscFree2(feRef,fvRef);CHKERRQ(ierr); 1859 1860 ierr = DMGetGlobalVector(dmf, &fv);CHKERRQ(ierr); 1861 ierr = DMGetGlobalVector(dmc, &cv);CHKERRQ(ierr); 1862 ierr = VecGetOwnershipRange(cv, &startC, &endC);CHKERRQ(ierr); 1863 ierr = PetscSectionGetConstrainedStorageSize(cglobalSection, &m);CHKERRQ(ierr); 1864 ierr = PetscMalloc2(cTotDim,&cellCIndices,fTotDim,&cellFIndices);CHKERRQ(ierr); 1865 ierr = PetscMalloc1(m,&cindices);CHKERRQ(ierr); 1866 ierr = PetscMalloc1(m,&findices);CHKERRQ(ierr); 1867 for (d = 0; d < m; ++d) cindices[d] = findices[d] = -1; 1868 for (c = cStart; c < cEnd; ++c) { 1869 ierr = DMPlexMatGetClosureIndicesRefined(dmf, fsection, fglobalSection, dmc, csection, cglobalSection, c, cellCIndices, cellFIndices);CHKERRQ(ierr); 1870 for (d = 0; d < cTotDim; ++d) { 1871 if ((cellCIndices[d] < startC) || (cellCIndices[d] >= endC)) continue; 1872 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]]); 1873 cindices[cellCIndices[d]-startC] = cellCIndices[d]; 1874 findices[cellCIndices[d]-startC] = cellFIndices[cmap[d]]; 1875 } 1876 } 1877 ierr = PetscFree(cmap);CHKERRQ(ierr); 1878 ierr = PetscFree2(cellCIndices,cellFIndices);CHKERRQ(ierr); 1879 1880 ierr = ISCreateGeneral(PETSC_COMM_SELF, m, cindices, PETSC_OWN_POINTER, &cis);CHKERRQ(ierr); 1881 ierr = ISCreateGeneral(PETSC_COMM_SELF, m, findices, PETSC_OWN_POINTER, &fis);CHKERRQ(ierr); 1882 ierr = VecScatterCreate(cv, cis, fv, fis, sc);CHKERRQ(ierr); 1883 ierr = ISDestroy(&cis);CHKERRQ(ierr); 1884 ierr = ISDestroy(&fis);CHKERRQ(ierr); 1885 ierr = DMRestoreGlobalVector(dmf, &fv);CHKERRQ(ierr); 1886 ierr = DMRestoreGlobalVector(dmc, &cv);CHKERRQ(ierr); 1887 ierr = PetscLogEventEnd(DMPLEX_InjectorFEM,dmc,dmf,0,0);CHKERRQ(ierr); 1888 PetscFunctionReturn(0); 1889 } 1890