1 #include <petsc/private/dmpleximpl.h> /*I "petscdmplex.h" I*/ 2 #include <../src/sys/utils/hash.h> 3 4 #undef __FUNCT__ 5 #define __FUNCT__ "DMPlexGetFaces_Internal" 6 /* 7 DMPlexGetFaces_Internal - Gets groups of vertices that correspond to faces for the given cell 8 */ 9 PetscErrorCode DMPlexGetFaces_Internal(DM dm, PetscInt dim, PetscInt p, PetscInt *numFaces, PetscInt *faceSize, const PetscInt *faces[]) 10 { 11 const PetscInt *cone = NULL; 12 PetscInt maxConeSize, maxSupportSize, coneSize; 13 PetscErrorCode ierr; 14 15 PetscFunctionBegin; 16 PetscValidHeaderSpecific(dm, DM_CLASSID, 1); 17 ierr = DMPlexGetMaxSizes(dm, &maxConeSize, &maxSupportSize);CHKERRQ(ierr); 18 ierr = DMPlexGetConeSize(dm, p, &coneSize);CHKERRQ(ierr); 19 ierr = DMPlexGetCone(dm, p, &cone);CHKERRQ(ierr); 20 ierr = DMPlexGetRawFaces_Internal(dm, dim, coneSize, cone, numFaces, faceSize, faces);CHKERRQ(ierr); 21 PetscFunctionReturn(0); 22 } 23 24 #undef __FUNCT__ 25 #define __FUNCT__ "DMPlexRestoreFaces_Internal" 26 /* 27 DMPlexRestoreFaces_Internal - Restores the array 28 */ 29 PetscErrorCode DMPlexRestoreFaces_Internal(DM dm, PetscInt dim, PetscInt p, PetscInt *numFaces, PetscInt *faceSize, const PetscInt *faces[]) 30 { 31 PetscErrorCode ierr; 32 33 PetscFunctionBegin; 34 ierr = DMRestoreWorkArray(dm, 0, PETSC_INT, (void *) faces);CHKERRQ(ierr); 35 PetscFunctionReturn(0); 36 } 37 38 #undef __FUNCT__ 39 #define __FUNCT__ "DMPlexGetRawFaces_Internal" 40 /* 41 DMPlexGetRawFaces_Internal - Gets groups of vertices that correspond to faces for the given cone 42 */ 43 PetscErrorCode DMPlexGetRawFaces_Internal(DM dm, PetscInt dim, PetscInt coneSize, const PetscInt cone[], PetscInt *numFaces, PetscInt *faceSize, const PetscInt *faces[]) 44 { 45 PetscInt *facesTmp; 46 PetscInt maxConeSize, maxSupportSize; 47 PetscErrorCode ierr; 48 49 PetscFunctionBegin; 50 PetscValidHeaderSpecific(dm, DM_CLASSID, 1); 51 ierr = DMPlexGetMaxSizes(dm, &maxConeSize, &maxSupportSize);CHKERRQ(ierr); 52 if (faces) {ierr = DMGetWorkArray(dm, PetscSqr(PetscMax(maxConeSize, maxSupportSize)), PETSC_INT, &facesTmp);CHKERRQ(ierr);} 53 switch (dim) { 54 case 1: 55 switch (coneSize) { 56 case 2: 57 if (faces) { 58 facesTmp[0] = cone[0]; facesTmp[1] = cone[1]; 59 *faces = facesTmp; 60 } 61 if (numFaces) *numFaces = 2; 62 if (faceSize) *faceSize = 1; 63 break; 64 default: 65 SETERRQ2(PetscObjectComm((PetscObject)dm), PETSC_ERR_ARG_OUTOFRANGE, "Cone size %D not supported for dimension %D", coneSize, dim); 66 } 67 break; 68 case 2: 69 switch (coneSize) { 70 case 3: 71 if (faces) { 72 facesTmp[0] = cone[0]; facesTmp[1] = cone[1]; 73 facesTmp[2] = cone[1]; facesTmp[3] = cone[2]; 74 facesTmp[4] = cone[2]; facesTmp[5] = cone[0]; 75 *faces = facesTmp; 76 } 77 if (numFaces) *numFaces = 3; 78 if (faceSize) *faceSize = 2; 79 break; 80 case 4: 81 /* Vertices follow right hand rule */ 82 if (faces) { 83 facesTmp[0] = cone[0]; facesTmp[1] = cone[1]; 84 facesTmp[2] = cone[1]; facesTmp[3] = cone[2]; 85 facesTmp[4] = cone[2]; facesTmp[5] = cone[3]; 86 facesTmp[6] = cone[3]; facesTmp[7] = cone[0]; 87 *faces = facesTmp; 88 } 89 if (numFaces) *numFaces = 4; 90 if (faceSize) *faceSize = 2; 91 break; 92 default: 93 SETERRQ2(PetscObjectComm((PetscObject)dm), PETSC_ERR_ARG_OUTOFRANGE, "Cone size %D not supported for dimension %D", coneSize, dim); 94 } 95 break; 96 case 3: 97 switch (coneSize) { 98 case 3: 99 if (faces) { 100 facesTmp[0] = cone[0]; facesTmp[1] = cone[1]; 101 facesTmp[2] = cone[1]; facesTmp[3] = cone[2]; 102 facesTmp[4] = cone[2]; facesTmp[5] = cone[0]; 103 *faces = facesTmp; 104 } 105 if (numFaces) *numFaces = 3; 106 if (faceSize) *faceSize = 2; 107 break; 108 case 4: 109 /* Vertices of first face follow right hand rule and normal points away from last vertex */ 110 if (faces) { 111 facesTmp[0] = cone[0]; facesTmp[1] = cone[1]; facesTmp[2] = cone[2]; 112 facesTmp[3] = cone[0]; facesTmp[4] = cone[3]; facesTmp[5] = cone[1]; 113 facesTmp[6] = cone[0]; facesTmp[7] = cone[2]; facesTmp[8] = cone[3]; 114 facesTmp[9] = cone[2]; facesTmp[10] = cone[1]; facesTmp[11] = cone[3]; 115 *faces = facesTmp; 116 } 117 if (numFaces) *numFaces = 4; 118 if (faceSize) *faceSize = 3; 119 break; 120 case 8: 121 if (faces) { 122 facesTmp[0] = cone[0]; facesTmp[1] = cone[1]; facesTmp[2] = cone[2]; facesTmp[3] = cone[3]; /* Bottom */ 123 facesTmp[4] = cone[4]; facesTmp[5] = cone[5]; facesTmp[6] = cone[6]; facesTmp[7] = cone[7]; /* Top */ 124 facesTmp[8] = cone[0]; facesTmp[9] = cone[3]; facesTmp[10] = cone[5]; facesTmp[11] = cone[4]; /* Front */ 125 facesTmp[12] = cone[2]; facesTmp[13] = cone[1]; facesTmp[14] = cone[7]; facesTmp[15] = cone[6]; /* Back */ 126 facesTmp[16] = cone[3]; facesTmp[17] = cone[2]; facesTmp[18] = cone[6]; facesTmp[19] = cone[5]; /* Right */ 127 facesTmp[20] = cone[0]; facesTmp[21] = cone[4]; facesTmp[22] = cone[7]; facesTmp[23] = cone[1]; /* Left */ 128 *faces = facesTmp; 129 } 130 if (numFaces) *numFaces = 6; 131 if (faceSize) *faceSize = 4; 132 break; 133 default: 134 SETERRQ2(PetscObjectComm((PetscObject)dm), PETSC_ERR_ARG_OUTOFRANGE, "Cone size %D not supported for dimension %D", coneSize, dim); 135 } 136 break; 137 default: 138 SETERRQ1(PetscObjectComm((PetscObject)dm), PETSC_ERR_ARG_OUTOFRANGE, "Dimension %D not supported", dim); 139 } 140 PetscFunctionReturn(0); 141 } 142 143 #undef __FUNCT__ 144 #define __FUNCT__ "DMPlexInterpolateFaces_Internal" 145 /* This interpolates faces for cells at some stratum */ 146 static PetscErrorCode DMPlexInterpolateFaces_Internal(DM dm, PetscInt cellDepth, DM idm) 147 { 148 DMLabel subpointMap; 149 PetscHashIJKL faceTable; 150 PetscInt *pStart, *pEnd; 151 PetscInt cellDim, depth, faceDepth = cellDepth, numPoints = 0, faceSizeAll = 0, face, c, d; 152 PetscErrorCode ierr; 153 154 PetscFunctionBegin; 155 ierr = DMGetDimension(dm, &cellDim);CHKERRQ(ierr); 156 /* HACK: I need a better way to determine face dimension, or an alternative to GetFaces() */ 157 ierr = DMPlexGetSubpointMap(dm, &subpointMap);CHKERRQ(ierr); 158 if (subpointMap) ++cellDim; 159 ierr = DMPlexGetDepth(dm, &depth);CHKERRQ(ierr); 160 ++depth; 161 ++cellDepth; 162 cellDim -= depth - cellDepth; 163 ierr = PetscMalloc2(depth+1,&pStart,depth+1,&pEnd);CHKERRQ(ierr); 164 for (d = depth-1; d >= faceDepth; --d) { 165 ierr = DMPlexGetDepthStratum(dm, d, &pStart[d+1], &pEnd[d+1]);CHKERRQ(ierr); 166 } 167 ierr = DMPlexGetDepthStratum(dm, -1, NULL, &pStart[faceDepth]);CHKERRQ(ierr); 168 pEnd[faceDepth] = pStart[faceDepth]; 169 for (d = faceDepth-1; d >= 0; --d) { 170 ierr = DMPlexGetDepthStratum(dm, d, &pStart[d], &pEnd[d]);CHKERRQ(ierr); 171 } 172 if (pEnd[cellDepth] > pStart[cellDepth]) {ierr = DMPlexGetFaces_Internal(dm, cellDim, pStart[cellDepth], NULL, &faceSizeAll, NULL);CHKERRQ(ierr);} 173 if (faceSizeAll > 4) SETERRQ1(PetscObjectComm((PetscObject) dm), PETSC_ERR_ARG_WRONG, "Do not support interpolation of meshes with faces of %D vertices", faceSizeAll); 174 ierr = PetscHashIJKLCreate(&faceTable);CHKERRQ(ierr); 175 for (c = pStart[cellDepth], face = pStart[faceDepth]; c < pEnd[cellDepth]; ++c) { 176 const PetscInt *cellFaces; 177 PetscInt numCellFaces, faceSize, cf; 178 179 ierr = DMPlexGetFaces_Internal(dm, cellDim, c, &numCellFaces, &faceSize, &cellFaces);CHKERRQ(ierr); 180 if (faceSize != faceSizeAll) SETERRQ3(PETSC_COMM_SELF, PETSC_ERR_PLIB, "Inconsistent face for cell %D of size %D != %D", c, faceSize, faceSizeAll); 181 for (cf = 0; cf < numCellFaces; ++cf) { 182 const PetscInt *cellFace = &cellFaces[cf*faceSize]; 183 PetscHashIJKLKey key; 184 PetscHashIJKLIter missing, iter; 185 186 if (faceSize == 2) { 187 key.i = PetscMin(cellFace[0], cellFace[1]); 188 key.j = PetscMax(cellFace[0], cellFace[1]); 189 key.k = 0; 190 key.l = 0; 191 } else { 192 key.i = cellFace[0]; key.j = cellFace[1]; key.k = cellFace[2]; key.l = faceSize > 3 ? cellFace[3] : 0; 193 ierr = PetscSortInt(faceSize, (PetscInt *) &key);CHKERRQ(ierr); 194 } 195 ierr = PetscHashIJKLPut(faceTable, key, &missing, &iter);CHKERRQ(ierr); 196 if (missing) {ierr = PetscHashIJKLSet(faceTable, iter, face++);CHKERRQ(ierr);} 197 } 198 ierr = DMPlexRestoreFaces_Internal(dm, cellDim, c, &numCellFaces, &faceSize, &cellFaces);CHKERRQ(ierr); 199 } 200 pEnd[faceDepth] = face; 201 ierr = PetscHashIJKLDestroy(&faceTable);CHKERRQ(ierr); 202 /* Count new points */ 203 for (d = 0; d <= depth; ++d) { 204 numPoints += pEnd[d]-pStart[d]; 205 } 206 ierr = DMPlexSetChart(idm, 0, numPoints);CHKERRQ(ierr); 207 /* Set cone sizes */ 208 for (d = 0; d <= depth; ++d) { 209 PetscInt coneSize, p; 210 211 if (d == faceDepth) { 212 for (p = pStart[d]; p < pEnd[d]; ++p) { 213 /* I see no way to do this if we admit faces of different shapes */ 214 ierr = DMPlexSetConeSize(idm, p, faceSizeAll);CHKERRQ(ierr); 215 } 216 } else if (d == cellDepth) { 217 for (p = pStart[d]; p < pEnd[d]; ++p) { 218 /* Number of cell faces may be different from number of cell vertices*/ 219 ierr = DMPlexGetFaces_Internal(dm, cellDim, p, &coneSize, NULL, NULL);CHKERRQ(ierr); 220 ierr = DMPlexSetConeSize(idm, p, coneSize);CHKERRQ(ierr); 221 } 222 } else { 223 for (p = pStart[d]; p < pEnd[d]; ++p) { 224 ierr = DMPlexGetConeSize(dm, p, &coneSize);CHKERRQ(ierr); 225 ierr = DMPlexSetConeSize(idm, p, coneSize);CHKERRQ(ierr); 226 } 227 } 228 } 229 ierr = DMSetUp(idm);CHKERRQ(ierr); 230 /* Get face cones from subsets of cell vertices */ 231 if (faceSizeAll > 4) SETERRQ1(PetscObjectComm((PetscObject) dm), PETSC_ERR_ARG_WRONG, "Do not support interpolation of meshes with faces of %D vertices", faceSizeAll); 232 ierr = PetscHashIJKLCreate(&faceTable);CHKERRQ(ierr); 233 for (d = depth; d > cellDepth; --d) { 234 const PetscInt *cone; 235 PetscInt p; 236 237 for (p = pStart[d]; p < pEnd[d]; ++p) { 238 ierr = DMPlexGetCone(dm, p, &cone);CHKERRQ(ierr); 239 ierr = DMPlexSetCone(idm, p, cone);CHKERRQ(ierr); 240 ierr = DMPlexGetConeOrientation(dm, p, &cone);CHKERRQ(ierr); 241 ierr = DMPlexSetConeOrientation(idm, p, cone);CHKERRQ(ierr); 242 } 243 } 244 for (c = pStart[cellDepth], face = pStart[faceDepth]; c < pEnd[cellDepth]; ++c) { 245 const PetscInt *cellFaces; 246 PetscInt numCellFaces, faceSize, cf; 247 248 ierr = DMPlexGetFaces_Internal(dm, cellDim, c, &numCellFaces, &faceSize, &cellFaces);CHKERRQ(ierr); 249 if (faceSize != faceSizeAll) SETERRQ3(PETSC_COMM_SELF, PETSC_ERR_PLIB, "Inconsistent face for cell %D of size %D != %D", c, faceSize, faceSizeAll); 250 for (cf = 0; cf < numCellFaces; ++cf) { 251 const PetscInt *cellFace = &cellFaces[cf*faceSize]; 252 PetscHashIJKLKey key; 253 PetscHashIJKLIter missing, iter; 254 255 if (faceSize == 2) { 256 key.i = PetscMin(cellFace[0], cellFace[1]); 257 key.j = PetscMax(cellFace[0], cellFace[1]); 258 key.k = 0; 259 key.l = 0; 260 } else { 261 key.i = cellFace[0]; key.j = cellFace[1]; key.k = cellFace[2]; key.l = faceSize > 3 ? cellFace[3] : 0; 262 ierr = PetscSortInt(faceSize, (PetscInt *) &key);CHKERRQ(ierr); 263 } 264 ierr = PetscHashIJKLPut(faceTable, key, &missing, &iter);CHKERRQ(ierr); 265 if (missing) { 266 ierr = DMPlexSetCone(idm, face, cellFace);CHKERRQ(ierr); 267 ierr = PetscHashIJKLSet(faceTable, iter, face);CHKERRQ(ierr); 268 ierr = DMPlexInsertCone(idm, c, cf, face++);CHKERRQ(ierr); 269 } else { 270 const PetscInt *cone; 271 PetscInt coneSize, ornt, i, j, f; 272 273 ierr = PetscHashIJKLGet(faceTable, iter, &f);CHKERRQ(ierr); 274 ierr = DMPlexInsertCone(idm, c, cf, f);CHKERRQ(ierr); 275 /* Orient face: Do not allow reverse orientation at the first vertex */ 276 ierr = DMPlexGetConeSize(idm, f, &coneSize);CHKERRQ(ierr); 277 ierr = DMPlexGetCone(idm, f, &cone);CHKERRQ(ierr); 278 if (coneSize != faceSize) SETERRQ3(PETSC_COMM_SELF, PETSC_ERR_PLIB, "Invalid number of face vertices %D for face %D should be %D", coneSize, f, faceSize); 279 /* - First find the initial vertex */ 280 for (i = 0; i < faceSize; ++i) if (cellFace[0] == cone[i]) break; 281 /* - Try forward comparison */ 282 for (j = 0; j < faceSize; ++j) if (cellFace[j] != cone[(i+j)%faceSize]) break; 283 if (j == faceSize) { 284 if ((faceSize == 2) && (i == 1)) ornt = -2; 285 else ornt = i; 286 } else { 287 /* - Try backward comparison */ 288 for (j = 0; j < faceSize; ++j) if (cellFace[j] != cone[(i+faceSize-j)%faceSize]) break; 289 if (j == faceSize) { 290 if (i == 0) ornt = -faceSize; 291 else ornt = -i; 292 } else SETERRQ(PETSC_COMM_SELF, PETSC_ERR_PLIB, "Could not determine face orientation"); 293 } 294 ierr = DMPlexInsertConeOrientation(idm, c, cf, ornt);CHKERRQ(ierr); 295 } 296 } 297 ierr = DMPlexRestoreFaces_Internal(dm, cellDim, c, &numCellFaces, &faceSize, &cellFaces);CHKERRQ(ierr); 298 } 299 if (face != pEnd[faceDepth]) SETERRQ2(PetscObjectComm((PetscObject) dm), PETSC_ERR_PLIB, "Invalid number of faces %D should be %D", face-pStart[faceDepth], pEnd[faceDepth]-pStart[faceDepth]); 300 ierr = PetscFree2(pStart,pEnd);CHKERRQ(ierr); 301 ierr = PetscHashIJKLDestroy(&faceTable);CHKERRQ(ierr); 302 ierr = PetscFree2(pStart,pEnd);CHKERRQ(ierr); 303 ierr = DMPlexSymmetrize(idm);CHKERRQ(ierr); 304 ierr = DMPlexStratify(idm);CHKERRQ(ierr); 305 PetscFunctionReturn(0); 306 } 307 308 #undef __FUNCT__ 309 #define __FUNCT__ "DMPlexInterpolate" 310 /*@C 311 DMPlexInterpolate - Take in a cell-vertex mesh and return one with all intermediate faces, edges, etc. 312 313 Collective on DM 314 315 Input Parameters: 316 + dm - The DMPlex object with only cells and vertices 317 - dmInt - If NULL a new DM is created, otherwise the interpolated DM is put into the given DM 318 319 Output Parameter: 320 . dmInt - The complete DMPlex object 321 322 Level: intermediate 323 324 .keywords: mesh 325 .seealso: DMPlexUninterpolate(), DMPlexCreateFromCellList() 326 @*/ 327 PetscErrorCode DMPlexInterpolate(DM dm, DM *dmInt) 328 { 329 DM idm, odm = dm; 330 PetscInt depth, dim, d; 331 PetscErrorCode ierr; 332 333 PetscFunctionBegin; 334 ierr = PetscLogEventBegin(DMPLEX_Interpolate,dm,0,0,0);CHKERRQ(ierr); 335 ierr = DMPlexGetDepth(dm, &depth);CHKERRQ(ierr); 336 ierr = DMGetDimension(dm, &dim);CHKERRQ(ierr); 337 if (dim <= 1) { 338 ierr = PetscObjectReference((PetscObject) dm);CHKERRQ(ierr); 339 idm = dm; 340 } 341 for (d = 1; d < dim; ++d) { 342 /* Create interpolated mesh */ 343 if ((d == dim-1) && *dmInt) {idm = *dmInt;} 344 else {ierr = DMCreate(PetscObjectComm((PetscObject)dm), &idm);CHKERRQ(ierr);} 345 ierr = DMSetType(idm, DMPLEX);CHKERRQ(ierr); 346 ierr = DMSetDimension(idm, dim);CHKERRQ(ierr); 347 if (depth > 0) {ierr = DMPlexInterpolateFaces_Internal(odm, 1, idm);CHKERRQ(ierr);} 348 if (odm != dm) {ierr = DMDestroy(&odm);CHKERRQ(ierr);} 349 odm = idm; 350 } 351 *dmInt = idm; 352 ierr = PetscLogEventEnd(DMPLEX_Interpolate,dm,0,0,0);CHKERRQ(ierr); 353 PetscFunctionReturn(0); 354 } 355 356 #undef __FUNCT__ 357 #define __FUNCT__ "DMPlexCopyCoordinates" 358 /*@ 359 DMPlexCopyCoordinates - Copy coordinates from one mesh to another with the same vertices 360 361 Collective on DM 362 363 Input Parameter: 364 . dmA - The DMPlex object with initial coordinates 365 366 Output Parameter: 367 . dmB - The DMPlex object with copied coordinates 368 369 Level: intermediate 370 371 Note: This is typically used when adding pieces other than vertices to a mesh 372 373 .keywords: mesh 374 .seealso: DMCopyLabels(), DMGetCoordinates(), DMGetCoordinatesLocal(), DMGetCoordinateDM(), DMGetCoordinateSection() 375 @*/ 376 PetscErrorCode DMPlexCopyCoordinates(DM dmA, DM dmB) 377 { 378 Vec coordinatesA, coordinatesB; 379 PetscSection coordSectionA, coordSectionB; 380 PetscScalar *coordsA, *coordsB; 381 PetscInt spaceDim, vStartA, vStartB, vEndA, vEndB, coordSizeB, v, d; 382 PetscErrorCode ierr; 383 384 PetscFunctionBegin; 385 if (dmA == dmB) PetscFunctionReturn(0); 386 ierr = DMPlexGetDepthStratum(dmA, 0, &vStartA, &vEndA);CHKERRQ(ierr); 387 ierr = DMPlexGetDepthStratum(dmB, 0, &vStartB, &vEndB);CHKERRQ(ierr); 388 if ((vEndA-vStartA) != (vEndB-vStartB)) SETERRQ2(PETSC_COMM_SELF, PETSC_ERR_ARG_SIZ, "The number of vertices in first DM %d != %d in the second DM", vEndA-vStartA, vEndB-vStartB); 389 ierr = DMGetCoordinateSection(dmA, &coordSectionA);CHKERRQ(ierr); 390 ierr = DMGetCoordinateSection(dmB, &coordSectionB);CHKERRQ(ierr); 391 if (!coordSectionB) { 392 PetscInt dim; 393 394 ierr = PetscSectionCreate(PetscObjectComm((PetscObject) coordSectionA), &coordSectionB);CHKERRQ(ierr); 395 ierr = DMGetCoordinateDim(dmA, &dim);CHKERRQ(ierr); 396 ierr = DMSetCoordinateSection(dmB, dim, coordSectionB);CHKERRQ(ierr); 397 ierr = PetscObjectDereference((PetscObject) coordSectionB);CHKERRQ(ierr); 398 } 399 ierr = PetscSectionSetNumFields(coordSectionB, 1);CHKERRQ(ierr); 400 ierr = PetscSectionGetFieldComponents(coordSectionA, 0, &spaceDim);CHKERRQ(ierr); 401 ierr = PetscSectionSetFieldComponents(coordSectionB, 0, spaceDim);CHKERRQ(ierr); 402 ierr = PetscSectionSetChart(coordSectionB, vStartB, vEndB);CHKERRQ(ierr); 403 for (v = vStartB; v < vEndB; ++v) { 404 ierr = PetscSectionSetDof(coordSectionB, v, spaceDim);CHKERRQ(ierr); 405 ierr = PetscSectionSetFieldDof(coordSectionB, v, 0, spaceDim);CHKERRQ(ierr); 406 } 407 ierr = PetscSectionSetUp(coordSectionB);CHKERRQ(ierr); 408 ierr = PetscSectionGetStorageSize(coordSectionB, &coordSizeB);CHKERRQ(ierr); 409 ierr = DMGetCoordinatesLocal(dmA, &coordinatesA);CHKERRQ(ierr); 410 ierr = VecCreate(PetscObjectComm((PetscObject) dmB), &coordinatesB);CHKERRQ(ierr); 411 ierr = PetscObjectSetName((PetscObject) coordinatesB, "coordinates");CHKERRQ(ierr); 412 ierr = VecSetSizes(coordinatesB, coordSizeB, PETSC_DETERMINE);CHKERRQ(ierr); 413 ierr = VecSetType(coordinatesB,VECSTANDARD);CHKERRQ(ierr); 414 ierr = VecGetArray(coordinatesA, &coordsA);CHKERRQ(ierr); 415 ierr = VecGetArray(coordinatesB, &coordsB);CHKERRQ(ierr); 416 for (v = 0; v < vEndB-vStartB; ++v) { 417 for (d = 0; d < spaceDim; ++d) { 418 coordsB[v*spaceDim+d] = coordsA[v*spaceDim+d]; 419 } 420 } 421 ierr = VecRestoreArray(coordinatesA, &coordsA);CHKERRQ(ierr); 422 ierr = VecRestoreArray(coordinatesB, &coordsB);CHKERRQ(ierr); 423 ierr = DMSetCoordinatesLocal(dmB, coordinatesB);CHKERRQ(ierr); 424 ierr = VecDestroy(&coordinatesB);CHKERRQ(ierr); 425 PetscFunctionReturn(0); 426 } 427 428 #undef __FUNCT__ 429 #define __FUNCT__ "DMPlexUninterpolate" 430 /*@ 431 DMPlexUninterpolate - Take in a mesh with all intermediate faces, edges, etc. and return a cell-vertex mesh 432 433 Collective on DM 434 435 Input Parameter: 436 . dm - The complete DMPlex object 437 438 Output Parameter: 439 . dmUnint - The DMPlex object with only cells and vertices 440 441 Level: intermediate 442 443 .keywords: mesh 444 .seealso: DMPlexInterpolate(), DMPlexCreateFromCellList() 445 @*/ 446 PetscErrorCode DMPlexUninterpolate(DM dm, DM *dmUnint) 447 { 448 DM udm; 449 PetscInt dim, vStart, vEnd, cStart, cEnd, c, maxConeSize = 0, *cone; 450 PetscErrorCode ierr; 451 452 PetscFunctionBegin; 453 ierr = DMGetDimension(dm, &dim);CHKERRQ(ierr); 454 if (dim <= 1) { 455 ierr = PetscObjectReference((PetscObject) dm);CHKERRQ(ierr); 456 *dmUnint = dm; 457 PetscFunctionReturn(0); 458 } 459 ierr = DMPlexGetDepthStratum(dm, 0, &vStart, &vEnd);CHKERRQ(ierr); 460 ierr = DMPlexGetHeightStratum(dm, 0, &cStart, &cEnd);CHKERRQ(ierr); 461 ierr = DMCreate(PetscObjectComm((PetscObject) dm), &udm);CHKERRQ(ierr); 462 ierr = DMSetType(udm, DMPLEX);CHKERRQ(ierr); 463 ierr = DMSetDimension(udm, dim);CHKERRQ(ierr); 464 ierr = DMPlexSetChart(udm, cStart, vEnd);CHKERRQ(ierr); 465 for (c = cStart; c < cEnd; ++c) { 466 PetscInt *closure = NULL, closureSize, cl, coneSize = 0; 467 468 ierr = DMPlexGetTransitiveClosure(dm, c, PETSC_TRUE, &closureSize, &closure);CHKERRQ(ierr); 469 for (cl = 0; cl < closureSize*2; cl += 2) { 470 const PetscInt p = closure[cl]; 471 472 if ((p >= vStart) && (p < vEnd)) ++coneSize; 473 } 474 ierr = DMPlexRestoreTransitiveClosure(dm, c, PETSC_TRUE, &closureSize, &closure);CHKERRQ(ierr); 475 ierr = DMPlexSetConeSize(udm, c, coneSize);CHKERRQ(ierr); 476 maxConeSize = PetscMax(maxConeSize, coneSize); 477 } 478 ierr = DMSetUp(udm);CHKERRQ(ierr); 479 ierr = PetscMalloc1(maxConeSize, &cone);CHKERRQ(ierr); 480 for (c = cStart; c < cEnd; ++c) { 481 PetscInt *closure = NULL, closureSize, cl, coneSize = 0; 482 483 ierr = DMPlexGetTransitiveClosure(dm, c, PETSC_TRUE, &closureSize, &closure);CHKERRQ(ierr); 484 for (cl = 0; cl < closureSize*2; cl += 2) { 485 const PetscInt p = closure[cl]; 486 487 if ((p >= vStart) && (p < vEnd)) cone[coneSize++] = p; 488 } 489 ierr = DMPlexRestoreTransitiveClosure(dm, c, PETSC_TRUE, &closureSize, &closure);CHKERRQ(ierr); 490 ierr = DMPlexSetCone(udm, c, cone);CHKERRQ(ierr); 491 } 492 ierr = PetscFree(cone);CHKERRQ(ierr); 493 ierr = DMPlexSymmetrize(udm);CHKERRQ(ierr); 494 ierr = DMPlexStratify(udm);CHKERRQ(ierr); 495 /* Reduce SF */ 496 { 497 PetscSF sfPoint, sfPointUn; 498 const PetscSFNode *remotePoints; 499 const PetscInt *localPoints; 500 PetscSFNode *remotePointsUn; 501 PetscInt *localPointsUn; 502 PetscInt vEnd, numRoots, numLeaves, l; 503 PetscInt numLeavesUn = 0, n = 0; 504 PetscErrorCode ierr; 505 506 /* Get original SF information */ 507 ierr = DMGetPointSF(dm, &sfPoint);CHKERRQ(ierr); 508 ierr = DMGetPointSF(udm, &sfPointUn);CHKERRQ(ierr); 509 ierr = DMPlexGetDepthStratum(dm, 0, NULL, &vEnd);CHKERRQ(ierr); 510 ierr = PetscSFGetGraph(sfPoint, &numRoots, &numLeaves, &localPoints, &remotePoints);CHKERRQ(ierr); 511 /* Allocate space for cells and vertices */ 512 for (l = 0; l < numLeaves; ++l) if (localPoints[l] < vEnd) numLeavesUn++; 513 /* Fill in leaves */ 514 if (vEnd >= 0) { 515 ierr = PetscMalloc1(numLeavesUn, &remotePointsUn);CHKERRQ(ierr); 516 ierr = PetscMalloc1(numLeavesUn, &localPointsUn);CHKERRQ(ierr); 517 for (l = 0; l < numLeaves; l++) { 518 if (localPoints[l] < vEnd) { 519 localPointsUn[n] = localPoints[l]; 520 remotePointsUn[n].rank = remotePoints[l].rank; 521 remotePointsUn[n].index = remotePoints[l].index; 522 ++n; 523 } 524 } 525 if (n != numLeavesUn) SETERRQ2(PETSC_COMM_SELF, PETSC_ERR_PLIB, "Inconsistent number of leaves %d != %d", n, numLeavesUn); 526 ierr = PetscSFSetGraph(sfPointUn, vEnd, numLeavesUn, localPointsUn, PETSC_OWN_POINTER, remotePointsUn, PETSC_OWN_POINTER);CHKERRQ(ierr); 527 } 528 } 529 *dmUnint = udm; 530 PetscFunctionReturn(0); 531 } 532