1 #include <petsc/private/dmpleximpl.h> /*I "petscdmplex.h" I*/ 2 3 static PetscErrorCode DMGetPoints_Private(DM dm, DMLabel domainLabel, PetscInt labelVal, PetscInt height, IS *pointIS) 4 { 5 PetscInt depth; 6 DMLabel depthLabel; 7 IS depthIS; 8 9 PetscFunctionBegin; 10 PetscCall(DMPlexGetDepth(dm, &depth)); 11 PetscCall(DMPlexGetDepthLabel(dm, &depthLabel)); 12 PetscCall(DMLabelGetStratumIS(depthLabel, depth - height, &depthIS)); 13 if (domainLabel) { 14 IS domainIS; 15 16 PetscCall(DMLabelGetStratumIS(domainLabel, labelVal, &domainIS)); 17 if (domainIS) { // domainIS is non-empty 18 PetscCall(ISIntersect(depthIS, domainIS, pointIS)); 19 PetscCall(ISDestroy(&domainIS)); 20 } else { // domainIS is NULL (empty) 21 *pointIS = NULL; 22 } 23 PetscCall(ISDestroy(&depthIS)); 24 } else { 25 *pointIS = depthIS; 26 } 27 PetscFunctionReturn(PETSC_SUCCESS); 28 } 29 30 /*@C 31 DMPlexGetLocalOffsets - Allocate and populate array of local offsets for each cell closure. 32 33 Not collective 34 35 Input Parameters: 36 + dm - The `DMPLEX` object 37 . domain_label - label for `DMPLEX` domain, or NULL for whole domain 38 . label_value - Stratum value 39 . height - Height of target cells in `DMPLEX` topology 40 - dm_field - Index of `DMPLEX` field 41 42 Output Parameters: 43 + num_cells - Number of local cells 44 . cell_size - Size of each cell, given by cell_size * num_comp = num_dof 45 . num_comp - Number of components per dof 46 . l_size - Size of local vector 47 - offsets - Allocated offsets array for cells 48 49 Level: developer 50 51 Notes: 52 Allocate and populate array of shape [num_cells, cell_size] defining offsets for each value (cell, node) for local vector of the `DMPLEX` field. All offsets are in the range [0, l_size - 1]. 53 54 Caller is responsible for freeing the offsets array using `PetscFree()`. 55 56 .seealso: [](ch_unstructured), `DMPlexGetLocalOffsetsSupport()`, `DM`, `DMPLEX`, `DMLabel`, `DMPlexGetClosureIndices()`, `DMPlexSetClosurePermutationTensor()`, `DMPlexGetCeedRestriction()` 57 @*/ 58 PetscErrorCode DMPlexGetLocalOffsets(DM dm, DMLabel domain_label, PetscInt label_value, PetscInt height, PetscInt dm_field, PetscInt *num_cells, PetscInt *cell_size, PetscInt *num_comp, PetscInt *l_size, PetscInt **offsets) 59 { 60 PetscDS ds = NULL; 61 PetscFE fe; 62 PetscSection section; 63 PetscInt dim, ds_field = -1; 64 PetscInt *restr_indices; 65 const PetscInt *iter_indices; 66 IS iter_is; 67 68 PetscFunctionBeginUser; 69 PetscValidHeaderSpecific(dm, DM_CLASSID, 1); 70 PetscCall(PetscLogEventBegin(DMPLEX_GetLocalOffsets, dm, 0, 0, 0)); 71 PetscCall(DMGetDimension(dm, &dim)); 72 PetscCall(DMGetLocalSection(dm, §ion)); 73 PetscCall(PetscSectionGetStorageSize(section, l_size)); 74 { 75 IS field_is; 76 const PetscInt *fields; 77 PetscInt num_fields; 78 79 PetscCall(DMGetRegionDS(dm, domain_label, &field_is, &ds, NULL)); 80 // Translate dm_field to ds_field 81 PetscCall(ISGetIndices(field_is, &fields)); 82 PetscCall(ISGetSize(field_is, &num_fields)); 83 for (PetscInt i = 0; i < num_fields; i++) { 84 if (dm_field == fields[i]) { 85 ds_field = i; 86 break; 87 } 88 } 89 PetscCall(ISRestoreIndices(field_is, &fields)); 90 } 91 PetscCheck(ds_field != -1, PetscObjectComm((PetscObject)dm), PETSC_ERR_SUP, "Could not find dm_field %" PetscInt_FMT " in DS", dm_field); 92 93 PetscCall(DMGetPoints_Private(dm, domain_label, label_value, height, &iter_is)); 94 if (iter_is) { 95 PetscCall(ISGetLocalSize(iter_is, num_cells)); 96 PetscCall(ISGetIndices(iter_is, &iter_indices)); 97 } else { 98 *num_cells = 0; 99 iter_indices = NULL; 100 } 101 102 { 103 PetscDualSpace dual_space; 104 PetscInt num_dual_basis_vectors; 105 106 PetscCall(PetscDSGetDiscretization(ds, ds_field, (PetscObject *)&fe)); 107 PetscCall(PetscFEGetHeightSubspace(fe, height, &fe)); 108 PetscCheck(fe, PetscObjectComm((PetscObject)dm), PETSC_ERR_ARG_OUTOFRANGE, "Height %" PetscInt_FMT " is invalid for DG coordinates", height); 109 PetscCall(PetscFEGetDualSpace(fe, &dual_space)); 110 PetscCall(PetscDualSpaceGetDimension(dual_space, &num_dual_basis_vectors)); 111 PetscCall(PetscDualSpaceGetNumComponents(dual_space, num_comp)); 112 PetscCheck(num_dual_basis_vectors % *num_comp == 0, PETSC_COMM_SELF, PETSC_ERR_SUP, "No support for number of dual basis vectors %" PetscInt_FMT " not divisible by %" PetscInt_FMT " components", num_dual_basis_vectors, *num_comp); 113 *cell_size = num_dual_basis_vectors / *num_comp; 114 } 115 PetscInt restr_size = (*num_cells) * (*cell_size); 116 PetscCall(PetscMalloc1(restr_size, &restr_indices)); 117 PetscInt cell_offset = 0; 118 119 PetscInt P = (PetscInt)PetscPowReal(*cell_size, 1.0 / (dim - height)); 120 for (PetscInt p = 0; p < *num_cells; p++) { 121 PetscBool flip = PETSC_FALSE; 122 PetscInt c = iter_indices[p]; 123 PetscInt num_indices, *indices; 124 PetscInt field_offsets[17]; // max number of fields plus 1 125 PetscCall(DMPlexGetClosureIndices(dm, section, section, c, PETSC_TRUE, &num_indices, &indices, field_offsets, NULL)); 126 if (height > 0) { 127 PetscInt num_cells_support, num_faces, start = -1; 128 const PetscInt *orients, *faces, *cells; 129 PetscCall(DMPlexGetSupport(dm, c, &cells)); 130 PetscCall(DMPlexGetSupportSize(dm, c, &num_cells_support)); 131 PetscCheck(num_cells_support == 1, PETSC_COMM_SELF, PETSC_ERR_ARG_INCOMP, "Expected one cell in support of exterior face, but got %" PetscInt_FMT " cells", num_cells_support); 132 PetscCall(DMPlexGetCone(dm, cells[0], &faces)); 133 PetscCall(DMPlexGetConeSize(dm, cells[0], &num_faces)); 134 for (PetscInt i = 0; i < num_faces; i++) { 135 if (faces[i] == c) start = i; 136 } 137 PetscCheck(start >= 0, PETSC_COMM_SELF, PETSC_ERR_ARG_CORRUPT, "Could not find face %" PetscInt_FMT " in cone of its support", c); 138 PetscCall(DMPlexGetConeOrientation(dm, cells[0], &orients)); 139 if (orients[start] < 0) flip = PETSC_TRUE; 140 } 141 142 for (PetscInt i = 0; i < *cell_size; i++) { 143 PetscInt ii = i; 144 if (flip) { 145 if (*cell_size == P) ii = *cell_size - 1 - i; 146 else if (*cell_size == P * P) { 147 PetscInt row = i / P, col = i % P; 148 ii = row + col * P; 149 } else SETERRQ(PETSC_COMM_SELF, PETSC_ERR_SUP, "No support for flipping point with cell size %" PetscInt_FMT " != P (%" PetscInt_FMT ") or P^2", *cell_size, P); 150 } 151 // Essential boundary conditions are encoded as -(loc+1), but we don't care so we decode. 152 PetscInt loc = indices[field_offsets[dm_field] + ii * (*num_comp)]; 153 loc = loc < 0 ? -(loc + 1) : loc; 154 restr_indices[cell_offset++] = loc; 155 PetscCheck(loc >= 0 && loc < *l_size, PETSC_COMM_SELF, PETSC_ERR_ARG_OUTOFRANGE, "Location %" PetscInt_FMT " not in [0, %" PetscInt_FMT ") local vector", loc, *l_size); 156 } 157 PetscCall(DMPlexRestoreClosureIndices(dm, section, section, c, PETSC_TRUE, &num_indices, &indices, field_offsets, NULL)); 158 } 159 PetscCheck(cell_offset == restr_size, PETSC_COMM_SELF, PETSC_ERR_SUP, "Shape mismatch, offsets array of shape (%" PetscInt_FMT ", %" PetscInt_FMT ") initialized for %" PetscInt_FMT " nodes", *num_cells, (*cell_size), cell_offset); 160 if (iter_is) PetscCall(ISRestoreIndices(iter_is, &iter_indices)); 161 PetscCall(ISDestroy(&iter_is)); 162 163 *offsets = restr_indices; 164 PetscCall(PetscLogEventEnd(DMPLEX_GetLocalOffsets, dm, 0, 0, 0)); 165 PetscFunctionReturn(PETSC_SUCCESS); 166 } 167 168 /*@C 169 DMPlexGetLocalOffsetsSupport - Allocate and populate arrays of local offsets for each face support. 170 171 Not collective 172 173 Input Parameters: 174 + dm - The `DMPLEX` object 175 . domain_label - label for `DMPLEX` domain, or NULL for whole domain 176 - label_value - Stratum value 177 178 Output Parameters: 179 + num_faces - Number of local, non-boundary faces 180 . num_comp - Number of components per dof 181 . l_size - Size of local vector 182 . offsetsNeg - Allocated offsets array for cells on the inward normal side of each face 183 - offsetsPos - Allocated offsets array for cells on the outward normal side of each face 184 185 Level: developer 186 187 Notes: 188 Allocate and populate array of shape [num_cells, num_comp] defining offsets for each cell for local vector of the `DMPLEX` field. All offsets are in the range [0, l_size - 1]. 189 190 Caller is responsible for freeing the offsets array using `PetscFree()`. 191 192 .seealso: [](ch_unstructured), `DMPlexGetLocalOffsets()`, `DM`, `DMPLEX`, `DMLabel`, `DMPlexGetClosureIndices()`, `DMPlexSetClosurePermutationTensor()`, `DMPlexGetCeedRestriction()` 193 @*/ 194 PetscErrorCode DMPlexGetLocalOffsetsSupport(DM dm, DMLabel domain_label, PetscInt label_value, PetscInt *num_faces, PetscInt *num_comp, PetscInt *l_size, PetscInt **offsetsNeg, PetscInt **offsetsPos) 195 { 196 PetscDS ds = NULL; 197 PetscFV fv; 198 PetscSection section; 199 PetscInt dim, height = 1, dm_field = 0, ds_field = 0, Nf, NfInt = 0, Nc; 200 PetscInt *restr_indices_neg, *restr_indices_pos; 201 const PetscInt *iter_indices; 202 IS iter_is; 203 204 PetscFunctionBeginUser; 205 PetscValidHeaderSpecific(dm, DM_CLASSID, 1); 206 PetscCall(DMGetDimension(dm, &dim)); 207 PetscCall(DMGetRegionDS(dm, domain_label, NULL, &ds, NULL)); 208 PetscCall(DMGetLocalSection(dm, §ion)); 209 PetscCall(PetscSectionGetStorageSize(section, l_size)); 210 211 PetscCall(DMGetPoints_Private(dm, domain_label, label_value, height, &iter_is)); 212 if (iter_is) { 213 PetscCall(ISGetIndices(iter_is, &iter_indices)); 214 PetscCall(ISGetLocalSize(iter_is, &Nf)); 215 for (PetscInt p = 0, Ns; p < Nf; ++p) { 216 PetscCall(DMPlexGetSupportSize(dm, iter_indices[p], &Ns)); 217 if (Ns == 2) ++NfInt; 218 } 219 *num_faces = NfInt; 220 } else { 221 *num_faces = 0; 222 iter_indices = NULL; 223 } 224 225 PetscCall(PetscDSGetDiscretization(ds, ds_field, (PetscObject *)&fv)); 226 PetscCall(PetscFVGetNumComponents(fv, &Nc)); 227 PetscCall(PetscMalloc1(NfInt * Nc, &restr_indices_neg)); 228 PetscCall(PetscMalloc1(NfInt * Nc, &restr_indices_pos)); 229 PetscInt face_offset_neg = 0, face_offset_pos = 0; 230 231 for (PetscInt p = 0; p < Nf; ++p) { 232 const PetscInt face = iter_indices[p]; 233 PetscInt num_indices, *indices; 234 PetscInt field_offsets[17]; // max number of fields plus 1 235 const PetscInt *supp; 236 PetscInt Ns, loc; 237 238 PetscCall(DMPlexGetSupport(dm, face, &supp)); 239 PetscCall(DMPlexGetSupportSize(dm, face, &Ns)); 240 // Ignore boundary faces 241 // TODO check for face on parallel boundary 242 if (Ns == 2) { 243 // Essential boundary conditions are encoded as -(loc+1), but we don't care so we decode. 244 PetscCall(DMPlexGetClosureIndices(dm, section, section, supp[0], PETSC_TRUE, &num_indices, &indices, field_offsets, NULL)); 245 PetscCheck(num_indices == Nc, PETSC_COMM_SELF, PETSC_ERR_ARG_INCOMP, "Number of closure indices %" PetscInt_FMT " != %" PetscInt_FMT " number of FV components", num_indices, Nc); 246 for (PetscInt c = 0; c < Nc; ++c) { 247 loc = indices[field_offsets[dm_field] + c]; 248 loc = loc < 0 ? -(loc + 1) : loc; 249 restr_indices_neg[face_offset_neg++] = loc; 250 PetscCheck(loc >= 0 && loc < *l_size, PETSC_COMM_SELF, PETSC_ERR_ARG_OUTOFRANGE, "Location %" PetscInt_FMT " not in [0, %" PetscInt_FMT ") local vector", loc, *l_size); 251 } 252 PetscCall(DMPlexRestoreClosureIndices(dm, section, section, supp[0], PETSC_TRUE, &num_indices, &indices, field_offsets, NULL)); 253 PetscCall(DMPlexGetClosureIndices(dm, section, section, supp[1], PETSC_TRUE, &num_indices, &indices, field_offsets, NULL)); 254 PetscCheck(num_indices == Nc, PETSC_COMM_SELF, PETSC_ERR_ARG_INCOMP, "Number of closure indices %" PetscInt_FMT " != %" PetscInt_FMT " number of FV components", num_indices, Nc); 255 for (PetscInt c = 0; c < Nc; ++c) { 256 loc = indices[field_offsets[dm_field] + c]; 257 loc = loc < 0 ? -(loc + 1) : loc; 258 restr_indices_pos[face_offset_pos++] = loc; 259 PetscCheck(loc >= 0 && loc < *l_size, PETSC_COMM_SELF, PETSC_ERR_ARG_OUTOFRANGE, "Location %" PetscInt_FMT " not in [0, %" PetscInt_FMT ") local vector", loc, *l_size); 260 } 261 PetscCall(DMPlexRestoreClosureIndices(dm, section, section, supp[1], PETSC_TRUE, &num_indices, &indices, field_offsets, NULL)); 262 } 263 } 264 PetscCheck(face_offset_neg == NfInt * Nc, PETSC_COMM_SELF, PETSC_ERR_SUP, "Shape mismatch, neg offsets array of shape (%" PetscInt_FMT ") initialized for %" PetscInt_FMT " nodes", NfInt * Nc, face_offset_neg); 265 PetscCheck(face_offset_pos == NfInt * Nc, PETSC_COMM_SELF, PETSC_ERR_SUP, "Shape mismatch, pos offsets array of shape (%" PetscInt_FMT ") initialized for %" PetscInt_FMT " nodes", NfInt * Nc, face_offset_pos); 266 if (iter_is) PetscCall(ISRestoreIndices(iter_is, &iter_indices)); 267 PetscCall(ISDestroy(&iter_is)); 268 269 *num_comp = Nc; 270 *offsetsNeg = restr_indices_neg; 271 *offsetsPos = restr_indices_pos; 272 PetscFunctionReturn(PETSC_SUCCESS); 273 } 274 275 #if defined(PETSC_HAVE_LIBCEED) 276 #include <petscdmplexceed.h> 277 278 /*@C 279 DMPlexGetCeedRestriction - Define the libCEED map from the local vector (Lvector) to the cells (Evector) 280 281 Input Parameters: 282 + dm - The `DMPLEX` object 283 . domain_label - label for `DMPLEX` domain, or NULL for the whole domain 284 . label_value - Stratum value 285 . height - Height of target cells in `DMPLEX` topology 286 - dm_field - Index of `DMPLEX` field 287 288 Output Parameter: 289 . ERestrict - libCEED restriction from local vector to to the cells 290 291 Level: developer 292 293 .seealso: [](ch_unstructured), `DM`, `DMPLEX`, `DMLabel`, `DMPlexGetLocalOffsets()` 294 @*/ 295 PetscErrorCode DMPlexGetCeedRestriction(DM dm, DMLabel domain_label, PetscInt label_value, PetscInt height, PetscInt dm_field, CeedElemRestriction *ERestrict) 296 { 297 PetscFunctionBeginUser; 298 PetscValidHeaderSpecific(dm, DM_CLASSID, 1); 299 PetscAssertPointer(ERestrict, 6); 300 if (!dm->ceedERestrict) { 301 PetscInt num_cells, cell_size, num_comp, lvec_size, *restr_indices; 302 CeedElemRestriction elem_restr; 303 Ceed ceed; 304 305 PetscCall(DMPlexGetLocalOffsets(dm, domain_label, label_value, height, dm_field, &num_cells, &cell_size, &num_comp, &lvec_size, &restr_indices)); 306 PetscCall(DMGetCeed(dm, &ceed)); 307 PetscCallCEED(CeedElemRestrictionCreate(ceed, num_cells, cell_size, num_comp, 1, lvec_size, CEED_MEM_HOST, CEED_COPY_VALUES, restr_indices, &elem_restr)); 308 PetscCall(PetscFree(restr_indices)); 309 dm->ceedERestrict = elem_restr; 310 } 311 *ERestrict = dm->ceedERestrict; 312 PetscFunctionReturn(PETSC_SUCCESS); 313 } 314 315 PetscErrorCode DMPlexCreateCeedRestrictionFVM(DM dm, CeedElemRestriction *erL, CeedElemRestriction *erR) 316 { 317 Ceed ceed; 318 PetscInt *offL, *offR; 319 PetscInt num_faces, num_comp, lvec_size; 320 321 PetscFunctionBeginUser; 322 PetscValidHeaderSpecific(dm, DM_CLASSID, 1); 323 PetscAssertPointer(erL, 2); 324 PetscAssertPointer(erR, 3); 325 PetscCall(DMGetCeed(dm, &ceed)); 326 PetscCall(DMPlexGetLocalOffsetsSupport(dm, NULL, 0, &num_faces, &num_comp, &lvec_size, &offL, &offR)); 327 PetscCallCEED(CeedElemRestrictionCreate(ceed, num_faces, 1, num_comp, 1, lvec_size, CEED_MEM_HOST, CEED_COPY_VALUES, offL, erL)); 328 PetscCallCEED(CeedElemRestrictionCreate(ceed, num_faces, 1, num_comp, 1, lvec_size, CEED_MEM_HOST, CEED_COPY_VALUES, offR, erR)); 329 PetscCall(PetscFree(offL)); 330 PetscCall(PetscFree(offR)); 331 PetscFunctionReturn(PETSC_SUCCESS); 332 } 333 334 // TODO DMPlexComputeGeometryFVM() also computes centroids and minimum radius 335 // TODO DMPlexComputeGeometryFVM() flips normal to match support orientation 336 // This function computes area-weights normals 337 PetscErrorCode DMPlexCeedComputeGeometryFVM(DM dm, CeedVector qd) 338 { 339 DMLabel domain_label = NULL; 340 PetscInt label_value = 0, height = 1, Nf, NfInt = 0, cdim; 341 const PetscInt *iter_indices; 342 IS iter_is; 343 CeedScalar *qdata; 344 345 PetscFunctionBegin; 346 PetscCall(DMGetCoordinateDim(dm, &cdim)); 347 PetscCall(DMGetPoints_Private(dm, domain_label, label_value, height, &iter_is)); 348 if (iter_is) { 349 PetscCall(ISGetIndices(iter_is, &iter_indices)); 350 PetscCall(ISGetLocalSize(iter_is, &Nf)); 351 for (PetscInt p = 0, Ns; p < Nf; ++p) { 352 PetscCall(DMPlexGetSupportSize(dm, iter_indices[p], &Ns)); 353 if (Ns == 2) ++NfInt; 354 } 355 } else { 356 iter_indices = NULL; 357 } 358 359 PetscCallCEED(CeedVectorSetValue(qd, 0.)); 360 PetscCallCEED(CeedVectorGetArray(qd, CEED_MEM_HOST, &qdata)); 361 for (PetscInt p = 0, off = 0; p < Nf; ++p) { 362 const PetscInt face = iter_indices[p]; 363 const PetscInt *supp; 364 PetscInt suppSize; 365 366 PetscCall(DMPlexGetSupport(dm, face, &supp)); 367 PetscCall(DMPlexGetSupportSize(dm, face, &suppSize)); 368 // Ignore boundary faces 369 // TODO check for face on parallel boundary 370 if (suppSize == 2) { 371 DMPolytopeType ct; 372 PetscReal area, fcentroid[3], centroids[2][3]; 373 374 PetscCall(DMPlexComputeCellGeometryFVM(dm, face, &area, fcentroid, &qdata[off])); 375 for (PetscInt d = 0; d < cdim; ++d) qdata[off + d] *= area; 376 off += cdim; 377 for (PetscInt s = 0; s < suppSize; ++s) { 378 PetscCall(DMPlexGetCellType(dm, supp[s], &ct)); 379 if (ct == DM_POLYTOPE_FV_GHOST) continue; 380 PetscCall(DMPlexComputeCellGeometryFVM(dm, supp[s], &qdata[off + s], centroids[s], NULL)); 381 } 382 // Give FV ghosts the same volume as the opposite cell 383 for (PetscInt s = 0; s < suppSize; ++s) { 384 PetscCall(DMPlexGetCellType(dm, supp[s], &ct)); 385 if (ct != DM_POLYTOPE_FV_GHOST) continue; 386 qdata[off + s] = qdata[off + (1 - s)]; 387 for (PetscInt d = 0; d < cdim; ++d) centroids[s][d] = fcentroid[d]; 388 } 389 // Flip normal orientation if necessary to match ordering in support 390 { 391 CeedScalar *normal = &qdata[off - cdim]; 392 PetscReal l[3], r[3], v[3]; 393 394 PetscCall(DMLocalizeCoordinateReal_Internal(dm, cdim, fcentroid, centroids[0], l)); 395 PetscCall(DMLocalizeCoordinateReal_Internal(dm, cdim, fcentroid, centroids[1], r)); 396 DMPlex_WaxpyD_Internal(cdim, -1, l, r, v); 397 if (DMPlex_DotRealD_Internal(cdim, normal, v) < 0) { 398 for (PetscInt d = 0; d < cdim; ++d) normal[d] = -normal[d]; 399 } 400 if (DMPlex_DotRealD_Internal(cdim, normal, v) <= 0) { 401 PetscCheck(cdim != 2, PETSC_COMM_SELF, PETSC_ERR_PLIB, "Direction for face %" PetscInt_FMT " could not be fixed, normal (%g,%g) v (%g,%g)", face, (double)normal[0], (double)normal[1], (double)v[0], (double)v[1]); 402 PetscCheck(cdim != 3, PETSC_COMM_SELF, PETSC_ERR_PLIB, "Direction for face %" PetscInt_FMT " could not be fixed, normal (%g,%g,%g) v (%g,%g,%g)", face, (double)normal[0], (double)normal[1], (double)normal[2], (double)v[0], (double)v[1], (double)v[2]); 403 SETERRQ(PETSC_COMM_SELF, PETSC_ERR_PLIB, "Direction for face %" PetscInt_FMT " could not be fixed", face); 404 } 405 } 406 off += suppSize; 407 } 408 } 409 PetscCallCEED(CeedVectorRestoreArray(qd, &qdata)); 410 if (iter_is) PetscCall(ISRestoreIndices(iter_is, &iter_indices)); 411 PetscCall(ISDestroy(&iter_is)); 412 PetscFunctionReturn(PETSC_SUCCESS); 413 } 414 415 #endif 416