Actual source code: plexfluent.c

  1: #define PETSC_DESIRE_FEATURE_TEST_MACROS /* for fileno() */
  2: #define PETSCDM_DLL
  3: #include <petsc/private/dmpleximpl.h>

  5: /*@
  6:   DMPlexCreateFluentFromFile - Create a `DMPLEX` mesh from a Fluent mesh file

  8:   Collective

 10:   Input Parameters:
 11: + comm        - The MPI communicator
 12: . filename    - Name of the Fluent mesh file
 13: - interpolate - Create faces and edges in the mesh

 15:   Output Parameter:
 16: . dm - The `DM` object representing the mesh

 18:   Level: beginner

 20: .seealso: [](ch_unstructured), `DM`, `DMPLEX`, `DMPlexCreateFromFile()`, `DMPlexCreateFluent()`, `DMPlexCreate()`
 21: @*/
 22: PetscErrorCode DMPlexCreateFluentFromFile(MPI_Comm comm, const char filename[], PetscBool interpolate, DM *dm)
 23: {
 24:   PetscViewer viewer;

 26:   PetscFunctionBegin;
 27:   /* Create file viewer and build plex */
 28:   PetscCall(PetscViewerCreate(comm, &viewer));
 29:   PetscCall(PetscViewerSetType(viewer, PETSCVIEWERASCII));
 30:   PetscCall(PetscViewerFileSetMode(viewer, FILE_MODE_READ));
 31:   PetscCall(PetscViewerFileSetName(viewer, filename));
 32:   PetscCall(DMPlexCreateFluent(comm, viewer, interpolate, dm));
 33:   PetscCall(PetscViewerDestroy(&viewer));
 34:   PetscFunctionReturn(PETSC_SUCCESS);
 35: }

 37: static PetscErrorCode DMPlexCreateFluent_ReadString(PetscViewer viewer, char *buffer, char delim)
 38: {
 39:   PetscInt ret, i = 0;

 41:   PetscFunctionBegin;
 42:   do PetscCall(PetscViewerRead(viewer, &buffer[i++], 1, &ret, PETSC_CHAR));
 43:   while (ret > 0 && buffer[i - 1] != '\0' && buffer[i - 1] != delim);
 44:   if (!ret) buffer[i - 1] = '\0';
 45:   else buffer[i] = '\0';
 46:   PetscFunctionReturn(PETSC_SUCCESS);
 47: }

 49: static PetscErrorCode DMPlexCreateFluent_ReadValues(PetscViewer viewer, void *data, PetscInt count, PetscDataType dtype, PetscBool binary)
 50: {
 51:   int      fdes = 0;
 52:   FILE    *file;
 53:   PetscInt i;

 55:   PetscFunctionBegin;
 56:   if (binary) {
 57:     /* Extract raw file descriptor to read binary block */
 58:     PetscCall(PetscViewerASCIIGetPointer(viewer, &file));
 59:     PetscCall(PetscFFlush(file));
 60:     fdes = fileno(file);
 61:   }

 63:   if (!binary && dtype == PETSC_INT) {
 64:     char         cbuf[256];
 65:     unsigned int ibuf;
 66:     int          snum;
 67:     /* Parse hexadecimal ascii integers */
 68:     for (i = 0; i < count; i++) {
 69:       PetscCall(PetscViewerRead(viewer, cbuf, 1, NULL, PETSC_STRING));
 70:       snum = sscanf(cbuf, "%x", &ibuf);
 71:       PetscCheck(snum == 1, PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "File is not a valid Fluent file");
 72:       ((PetscInt *)data)[i] = (PetscInt)ibuf;
 73:     }
 74:   } else if (binary && dtype == PETSC_INT) {
 75:     /* Always read 32-bit ints and cast to PetscInt */
 76:     int *ibuf;
 77:     PetscCall(PetscMalloc1(count, &ibuf));
 78:     PetscCall(PetscBinaryRead(fdes, ibuf, count, NULL, PETSC_ENUM));
 79:     PetscCall(PetscByteSwap(ibuf, PETSC_ENUM, count));
 80:     for (i = 0; i < count; i++) ((PetscInt *)data)[i] = (PetscInt)ibuf[i];
 81:     PetscCall(PetscFree(ibuf));

 83:   } else if (binary && dtype == PETSC_SCALAR) {
 84:     float *fbuf;
 85:     /* Always read 32-bit floats and cast to PetscScalar */
 86:     PetscCall(PetscMalloc1(count, &fbuf));
 87:     PetscCall(PetscBinaryRead(fdes, fbuf, count, NULL, PETSC_FLOAT));
 88:     PetscCall(PetscByteSwap(fbuf, PETSC_FLOAT, count));
 89:     for (i = 0; i < count; i++) ((PetscScalar *)data)[i] = (PetscScalar)fbuf[i];
 90:     PetscCall(PetscFree(fbuf));
 91:   } else {
 92:     PetscCall(PetscViewerASCIIRead(viewer, data, count, NULL, dtype));
 93:   }
 94:   PetscFunctionReturn(PETSC_SUCCESS);
 95: }

 97: static PetscErrorCode DMPlexCreateFluent_ReadSection(PetscViewer viewer, FluentSection *s)
 98: {
 99:   char buffer[PETSC_MAX_PATH_LEN];
100:   int  snum;

102:   PetscFunctionBegin;
103:   /* Fast-forward to next section and derive its index */
104:   PetscCall(DMPlexCreateFluent_ReadString(viewer, buffer, '('));
105:   PetscCall(DMPlexCreateFluent_ReadString(viewer, buffer, ' '));
106:   snum = sscanf(buffer, "%d", &s->index);
107:   /* If we can't match an index return -1 to signal end-of-file */
108:   if (snum < 1) {
109:     s->index = -1;
110:     PetscFunctionReturn(PETSC_SUCCESS);
111:   }

113:   if (s->index == 0) { /* Comment */
114:     PetscCall(DMPlexCreateFluent_ReadString(viewer, buffer, ')'));

116:   } else if (s->index == 2) { /* Dimension */
117:     PetscCall(DMPlexCreateFluent_ReadString(viewer, buffer, ')'));
118:     snum = sscanf(buffer, "%d", &s->nd);
119:     PetscCheck(snum == 1, PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "File is not a valid Fluent file");

121:   } else if (s->index == 10 || s->index == 2010) { /* Vertices */
122:     PetscCall(DMPlexCreateFluent_ReadString(viewer, buffer, ')'));
123:     snum = sscanf(buffer, "(%x %x %x %d %d)", &s->zoneID, &s->first, &s->last, &s->type, &s->nd);
124:     PetscCheck(snum == 5, PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "File is not a valid Fluent file");
125:     if (s->zoneID > 0) {
126:       PetscInt numCoords = s->last - s->first + 1;
127:       PetscCall(DMPlexCreateFluent_ReadString(viewer, buffer, '('));
128:       PetscCall(PetscMalloc1(s->nd * numCoords, (PetscScalar **)&s->data));
129:       PetscCall(DMPlexCreateFluent_ReadValues(viewer, s->data, s->nd * numCoords, PETSC_SCALAR, s->index == 2010 ? PETSC_TRUE : PETSC_FALSE));
130:       PetscCall(DMPlexCreateFluent_ReadString(viewer, buffer, ')'));
131:     }
132:     PetscCall(DMPlexCreateFluent_ReadString(viewer, buffer, ')'));

134:   } else if (s->index == 12 || s->index == 2012) { /* Cells */
135:     PetscCall(DMPlexCreateFluent_ReadString(viewer, buffer, ')'));
136:     snum = sscanf(buffer, "(%x", &s->zoneID);
137:     PetscCheck(snum == 1, PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "File is not a valid Fluent file");
138:     if (s->zoneID == 0) { /* Header section */
139:       snum = sscanf(buffer, "(%x %x %x %d)", &s->zoneID, &s->first, &s->last, &s->nd);
140:       PetscCheck(snum == 4, PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "File is not a valid Fluent file");
141:     } else { /* Data section */
142:       snum = sscanf(buffer, "(%x %x %x %d %d)", &s->zoneID, &s->first, &s->last, &s->type, &s->nd);
143:       PetscCheck(snum == 5, PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "File is not a valid Fluent file");
144:       if (s->nd == 0) {
145:         /* Read cell type definitions for mixed cells */
146:         PetscInt numCells = s->last - s->first + 1;
147:         PetscCall(DMPlexCreateFluent_ReadString(viewer, buffer, '('));
148:         PetscCall(PetscMalloc1(numCells, (PetscInt **)&s->data));
149:         PetscCall(DMPlexCreateFluent_ReadValues(viewer, s->data, numCells, PETSC_INT, s->index == 2012 ? PETSC_TRUE : PETSC_FALSE));
150:         PetscCall(PetscFree(s->data));
151:         PetscCall(DMPlexCreateFluent_ReadString(viewer, buffer, ')'));
152:       }
153:     }
154:     PetscCall(DMPlexCreateFluent_ReadString(viewer, buffer, ')'));

156:   } else if (s->index == 13 || s->index == 2013) { /* Faces */
157:     PetscCall(DMPlexCreateFluent_ReadString(viewer, buffer, ')'));
158:     snum = sscanf(buffer, "(%x", &s->zoneID);
159:     PetscCheck(snum == 1, PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "File is not a valid Fluent file");
160:     if (s->zoneID == 0) { /* Header section */
161:       snum = sscanf(buffer, "(%x %x %x %d)", &s->zoneID, &s->first, &s->last, &s->nd);
162:       PetscCheck(snum == 4, PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "File is not a valid Fluent file");
163:     } else { /* Data section */
164:       PetscInt f, numEntries, numFaces;
165:       snum = sscanf(buffer, "(%x %x %x %d %d)", &s->zoneID, &s->first, &s->last, &s->type, &s->nd);
166:       PetscCheck(snum == 5, PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "File is not a valid Fluent file");
167:       PetscCall(DMPlexCreateFluent_ReadString(viewer, buffer, '('));
168:       switch (s->nd) {
169:       case 0:
170:         numEntries = PETSC_DETERMINE;
171:         break;
172:       case 2:
173:         numEntries = 2 + 2;
174:         break; /* linear */
175:       case 3:
176:         numEntries = 2 + 3;
177:         break; /* triangular */
178:       case 4:
179:         numEntries = 2 + 4;
180:         break; /* quadrilateral */
181:       default:
182:         SETERRQ(PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "Unknown face type in Fluent file");
183:       }
184:       numFaces = s->last - s->first + 1;
185:       if (numEntries != PETSC_DETERMINE) {
186:         /* Allocate space only if we already know the size of the block */
187:         PetscCall(PetscMalloc1(numEntries * numFaces, (PetscInt **)&s->data));
188:       }
189:       for (f = 0; f < numFaces; f++) {
190:         if (s->nd == 0) {
191:           /* Determine the size of the block for "mixed" facets */
192:           PetscInt numFaceVert = 0;
193:           PetscCall(DMPlexCreateFluent_ReadValues(viewer, &numFaceVert, 1, PETSC_INT, s->index == 2013 ? PETSC_TRUE : PETSC_FALSE));
194:           if (numEntries == PETSC_DETERMINE) {
195:             numEntries = numFaceVert + 2;
196:             PetscCall(PetscMalloc1(numEntries * numFaces, (PetscInt **)&s->data));
197:           } else {
198:             PetscCheck(numEntries == numFaceVert + 2, PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "No support for mixed faces in Fluent files");
199:           }
200:         }
201:         PetscCall(DMPlexCreateFluent_ReadValues(viewer, &(((PetscInt *)s->data)[f * numEntries]), numEntries, PETSC_INT, s->index == 2013 ? PETSC_TRUE : PETSC_FALSE));
202:       }
203:       s->nd = (int)(numEntries - 2);
204:       PetscCall(DMPlexCreateFluent_ReadString(viewer, buffer, ')'));
205:     }
206:     PetscCall(DMPlexCreateFluent_ReadString(viewer, buffer, ')'));

208:   } else { /* Unknown section type */
209:     PetscInt depth = 1;
210:     do {
211:       /* Match parentheses when parsing unknown sections */
212:       do PetscCall(PetscViewerRead(viewer, &buffer[0], 1, NULL, PETSC_CHAR));
213:       while (buffer[0] != '(' && buffer[0] != ')');
214:       if (buffer[0] == '(') depth++;
215:       if (buffer[0] == ')') depth--;
216:     } while (depth > 0);
217:     PetscCall(DMPlexCreateFluent_ReadString(viewer, buffer, '\n'));
218:   }
219:   PetscFunctionReturn(PETSC_SUCCESS);
220: }

222: /*@C
223:   DMPlexCreateFluent - Create a `DMPLEX` mesh from a Fluent mesh file <http://aerojet.engr.ucdavis.edu/fluenthelp/html/ug/node1490.htm>.

225:   Collective

227:   Input Parameters:
228: + comm        - The MPI communicator
229: . viewer      - The `PetscViewer` associated with a Fluent mesh file
230: - interpolate - Create faces and edges in the mesh

232:   Output Parameter:
233: . dm - The `DM` object representing the mesh

235:   Level: beginner

237: .seealso: [](ch_unstructured), `DM`, `DMPLEX`, `DMCreate()`
238: @*/
239: PetscErrorCode DMPlexCreateFluent(MPI_Comm comm, PetscViewer viewer, PetscBool interpolate, DM *dm)
240: {
241:   PetscMPIInt  rank;
242:   PetscInt     c, v, dim = PETSC_DETERMINE, numCells = 0, numVertices = 0, numCellVertices = PETSC_DETERMINE;
243:   PetscInt     numFaces = PETSC_DETERMINE, f, numFaceEntries = PETSC_DETERMINE, numFaceVertices = PETSC_DETERMINE;
244:   PetscInt    *faces = NULL, *cellVertices = NULL, *faceZoneIDs = NULL;
245:   DMLabel      faceSets = NULL;
246:   PetscInt     d, coordSize;
247:   PetscScalar *coords, *coordsIn = NULL;
248:   PetscSection coordSection;
249:   Vec          coordinates;

251:   PetscFunctionBegin;
252:   PetscCallMPI(MPI_Comm_rank(comm, &rank));

254:   if (rank == 0) {
255:     FluentSection s;
256:     do {
257:       PetscCall(DMPlexCreateFluent_ReadSection(viewer, &s));
258:       if (s.index == 2) { /* Dimension */
259:         dim = s.nd;

261:       } else if (s.index == 10 || s.index == 2010) { /* Vertices */
262:         if (s.zoneID == 0) numVertices = s.last;
263:         else {
264:           PetscCheck(!coordsIn, PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "Currently no support for multiple coordinate sets in Fluent files");
265:           coordsIn = (PetscScalar *)s.data;
266:         }

268:       } else if (s.index == 12 || s.index == 2012) { /* Cells */
269:         if (s.zoneID == 0) numCells = s.last;
270:         else {
271:           switch (s.nd) {
272:           case 0:
273:             numCellVertices = PETSC_DETERMINE;
274:             break;
275:           case 1:
276:             numCellVertices = 3;
277:             break; /* triangular */
278:           case 2:
279:             numCellVertices = 4;
280:             break; /* tetrahedral */
281:           case 3:
282:             numCellVertices = 4;
283:             break; /* quadrilateral */
284:           case 4:
285:             numCellVertices = 8;
286:             break; /* hexahedral */
287:           case 5:
288:             numCellVertices = 5;
289:             break; /* pyramid */
290:           case 6:
291:             numCellVertices = 6;
292:             break; /* wedge */
293:           default:
294:             numCellVertices = PETSC_DETERMINE;
295:           }
296:         }

298:       } else if (s.index == 13 || s.index == 2013) { /* Facets */
299:         if (s.zoneID == 0) {                         /* Header section */
300:           numFaces = (PetscInt)(s.last - s.first + 1);
301:           if (s.nd == 0 || s.nd == 5) numFaceVertices = PETSC_DETERMINE;
302:           else numFaceVertices = s.nd;
303:         } else { /* Data section */
304:           unsigned int z;

306:           PetscCheck(numFaceVertices == PETSC_DETERMINE || s.nd == numFaceVertices, PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "Mixed facets in Fluent files are not supported");
307:           PetscCheck(numFaces >= 0, PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "No header section for facets in Fluent file");
308:           if (numFaceVertices == PETSC_DETERMINE) numFaceVertices = s.nd;
309:           numFaceEntries = numFaceVertices + 2;
310:           if (!faces) PetscCall(PetscMalloc1(numFaces * numFaceEntries, &faces));
311:           if (!faceZoneIDs) PetscCall(PetscMalloc1(numFaces, &faceZoneIDs));
312:           PetscCall(PetscMemcpy(&faces[(s.first - 1) * numFaceEntries], s.data, (s.last - s.first + 1) * numFaceEntries * sizeof(PetscInt)));
313:           /* Record the zoneID for each face set */
314:           for (z = s.first - 1; z < s.last; z++) faceZoneIDs[z] = s.zoneID;
315:           PetscCall(PetscFree(s.data));
316:         }
317:       }
318:     } while (s.index >= 0);
319:   }
320:   PetscCallMPI(MPI_Bcast(&dim, 1, MPIU_INT, 0, comm));
321:   PetscCheck(dim >= 0, PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "Fluent file does not include dimension");

323:   /* Allocate cell-vertex mesh */
324:   PetscCall(DMCreate(comm, dm));
325:   PetscCall(DMSetType(*dm, DMPLEX));
326:   PetscCall(DMSetDimension(*dm, dim));
327:   PetscCall(DMPlexSetChart(*dm, 0, numCells + numVertices));
328:   if (rank == 0) {
329:     PetscCheck(numCells >= 0, PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "Unknown number of cells in Fluent file");
330:     /* If no cell type was given we assume simplices */
331:     if (numCellVertices == PETSC_DETERMINE) numCellVertices = numFaceVertices + 1;
332:     for (c = 0; c < numCells; ++c) PetscCall(DMPlexSetConeSize(*dm, c, numCellVertices));
333:   }
334:   PetscCall(DMSetUp(*dm));

336:   if (rank == 0 && faces) {
337:     /* Derive cell-vertex list from face-vertex and face-cell maps */
338:     PetscCall(PetscMalloc1(numCells * numCellVertices, &cellVertices));
339:     for (c = 0; c < numCells * numCellVertices; c++) cellVertices[c] = -1;
340:     for (f = 0; f < numFaces; f++) {
341:       PetscInt       *cell;
342:       const PetscInt  cl   = faces[f * numFaceEntries + numFaceVertices];
343:       const PetscInt  cr   = faces[f * numFaceEntries + numFaceVertices + 1];
344:       const PetscInt *face = &faces[f * numFaceEntries];

346:       if (cl > 0) {
347:         cell = &(cellVertices[(cl - 1) * numCellVertices]);
348:         for (v = 0; v < numFaceVertices; v++) {
349:           PetscBool found = PETSC_FALSE;
350:           for (c = 0; c < numCellVertices; c++) {
351:             if (cell[c] < 0) break;
352:             if (cell[c] == face[v] - 1 + numCells) {
353:               found = PETSC_TRUE;
354:               break;
355:             }
356:           }
357:           if (!found) cell[c] = face[v] - 1 + numCells;
358:         }
359:       }
360:       if (cr > 0) {
361:         cell = &(cellVertices[(cr - 1) * numCellVertices]);
362:         for (v = 0; v < numFaceVertices; v++) {
363:           PetscBool found = PETSC_FALSE;
364:           for (c = 0; c < numCellVertices; c++) {
365:             if (cell[c] < 0) break;
366:             if (cell[c] == face[v] - 1 + numCells) {
367:               found = PETSC_TRUE;
368:               break;
369:             }
370:           }
371:           if (!found) cell[c] = face[v] - 1 + numCells;
372:         }
373:       }
374:     }
375:     for (c = 0; c < numCells; c++) PetscCall(DMPlexSetCone(*dm, c, &cellVertices[c * numCellVertices]));
376:   }
377:   PetscCall(DMPlexSymmetrize(*dm));
378:   PetscCall(DMPlexStratify(*dm));
379:   if (interpolate) {
380:     DM idm;

382:     PetscCall(DMPlexInterpolate(*dm, &idm));
383:     PetscCall(DMDestroy(dm));
384:     *dm = idm;
385:   }

387:   if (rank == 0 && faces) {
388:     PetscInt        fi, joinSize, meetSize, *fverts, cells[2];
389:     const PetscInt *join, *meet;
390:     PetscCall(PetscMalloc1(numFaceVertices, &fverts));
391:     /* Mark facets by finding the full join of all adjacent vertices */
392:     for (f = 0; f < numFaces; f++) {
393:       const PetscInt cl = faces[f * numFaceEntries + numFaceVertices] - 1;
394:       const PetscInt cr = faces[f * numFaceEntries + numFaceVertices + 1] - 1;
395:       if (cl > 0 && cr > 0) {
396:         /* If we know both adjoining cells we can use a single-level meet */
397:         cells[0] = cl;
398:         cells[1] = cr;
399:         PetscCall(DMPlexGetMeet(*dm, 2, cells, &meetSize, &meet));
400:         PetscCheck(meetSize == 1, PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "Could not determine Plex facet for Fluent face %" PetscInt_FMT, f);
401:         PetscCall(DMSetLabelValue_Fast(*dm, &faceSets, "Face Sets", meet[0], faceZoneIDs[f]));
402:         PetscCall(DMPlexRestoreMeet(*dm, numFaceVertices, fverts, &meetSize, &meet));
403:       } else {
404:         for (fi = 0; fi < numFaceVertices; fi++) fverts[fi] = faces[f * numFaceEntries + fi] + numCells - 1;
405:         PetscCall(DMPlexGetFullJoin(*dm, numFaceVertices, fverts, &joinSize, &join));
406:         PetscCheck(joinSize == 1, PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "Could not determine Plex facet for Fluent face %" PetscInt_FMT, f);
407:         PetscCall(DMSetLabelValue_Fast(*dm, &faceSets, "Face Sets", join[0], faceZoneIDs[f]));
408:         PetscCall(DMPlexRestoreJoin(*dm, numFaceVertices, fverts, &joinSize, &join));
409:       }
410:     }
411:     PetscCall(PetscFree(fverts));
412:   }

414:   { /* Create Face Sets label at all processes */
415:     enum {
416:       n = 1
417:     };
418:     PetscBool flag[n];

420:     flag[0] = faceSets ? PETSC_TRUE : PETSC_FALSE;
421:     PetscCallMPI(MPI_Bcast(flag, n, MPIU_BOOL, 0, comm));
422:     if (flag[0]) PetscCall(DMCreateLabel(*dm, "Face Sets"));
423:   }

425:   /* Read coordinates */
426:   PetscCall(DMGetCoordinateSection(*dm, &coordSection));
427:   PetscCall(PetscSectionSetNumFields(coordSection, 1));
428:   PetscCall(PetscSectionSetFieldComponents(coordSection, 0, dim));
429:   PetscCall(PetscSectionSetChart(coordSection, numCells, numCells + numVertices));
430:   for (v = numCells; v < numCells + numVertices; ++v) {
431:     PetscCall(PetscSectionSetDof(coordSection, v, dim));
432:     PetscCall(PetscSectionSetFieldDof(coordSection, v, 0, dim));
433:   }
434:   PetscCall(PetscSectionSetUp(coordSection));
435:   PetscCall(PetscSectionGetStorageSize(coordSection, &coordSize));
436:   PetscCall(VecCreate(PETSC_COMM_SELF, &coordinates));
437:   PetscCall(PetscObjectSetName((PetscObject)coordinates, "coordinates"));
438:   PetscCall(VecSetSizes(coordinates, coordSize, PETSC_DETERMINE));
439:   PetscCall(VecSetType(coordinates, VECSTANDARD));
440:   PetscCall(VecGetArray(coordinates, &coords));
441:   if (rank == 0 && coordsIn) {
442:     for (v = 0; v < numVertices; ++v) {
443:       for (d = 0; d < dim; ++d) coords[v * dim + d] = coordsIn[v * dim + d];
444:     }
445:   }
446:   PetscCall(VecRestoreArray(coordinates, &coords));
447:   PetscCall(DMSetCoordinatesLocal(*dm, coordinates));
448:   PetscCall(VecDestroy(&coordinates));

450:   if (rank == 0) {
451:     PetscCall(PetscFree(cellVertices));
452:     PetscCall(PetscFree(faces));
453:     PetscCall(PetscFree(faceZoneIDs));
454:     PetscCall(PetscFree(coordsIn));
455:   }
456:   PetscFunctionReturn(PETSC_SUCCESS);
457: }