1 #include <petsc/private/dmpleximpl.h> /*I "petscdmplex.h" I*/ 2 #include <petsc/private/hashmapi.h> 3 #include <petsc/private/hashmapij.h> 4 5 /* HashIJKL */ 6 7 #include <petsc/private/hashmap.h> 8 9 typedef struct _PetscHashIJKLKey { PetscInt i, j, k, l; } PetscHashIJKLKey; 10 11 #define PetscHashIJKLKeyHash(key) \ 12 PetscHashCombine(PetscHashCombine(PetscHashInt((key).i),PetscHashInt((key).j)), \ 13 PetscHashCombine(PetscHashInt((key).k),PetscHashInt((key).l))) 14 15 #define PetscHashIJKLKeyEqual(k1,k2) \ 16 (((k1).i==(k2).i) ? ((k1).j==(k2).j) ? ((k1).k==(k2).k) ? ((k1).l==(k2).l) : 0 : 0 : 0) 17 18 PETSC_HASH_MAP(HashIJKL, PetscHashIJKLKey, PetscInt, PetscHashIJKLKeyHash, PetscHashIJKLKeyEqual, -1) 19 20 21 /* 22 DMPlexGetFaces_Internal - Gets groups of vertices that correspond to faces for the given cell 23 This assumes that the mesh is not interpolated from the depth of point p to the vertices 24 */ 25 PetscErrorCode DMPlexGetFaces_Internal(DM dm, PetscInt dim, PetscInt p, PetscInt *numFaces, PetscInt *faceSize, const PetscInt *faces[]) 26 { 27 const PetscInt *cone = NULL; 28 PetscInt coneSize; 29 PetscErrorCode ierr; 30 31 PetscFunctionBegin; 32 PetscValidHeaderSpecific(dm, DM_CLASSID, 1); 33 ierr = DMPlexGetConeSize(dm, p, &coneSize);CHKERRQ(ierr); 34 ierr = DMPlexGetCone(dm, p, &cone);CHKERRQ(ierr); 35 ierr = DMPlexGetRawFaces_Internal(dm, dim, coneSize, cone, numFaces, faceSize, faces);CHKERRQ(ierr); 36 PetscFunctionReturn(0); 37 } 38 39 /* 40 DMPlexRestoreFaces_Internal - Restores the array 41 */ 42 PetscErrorCode DMPlexRestoreFaces_Internal(DM dm, PetscInt dim, PetscInt p, PetscInt *numFaces, PetscInt *faceSize, const PetscInt *faces[]) 43 { 44 PetscErrorCode ierr; 45 46 PetscFunctionBegin; 47 if (faces) { ierr = DMRestoreWorkArray(dm, 0, MPIU_INT, (void *) faces);CHKERRQ(ierr); } 48 PetscFunctionReturn(0); 49 } 50 51 /* 52 DMPlexGetRawFaces_Internal - Gets groups of vertices that correspond to faces for the given cone 53 */ 54 PetscErrorCode DMPlexGetRawFaces_Internal(DM dm, PetscInt dim, PetscInt coneSize, const PetscInt cone[], PetscInt *numFaces, PetscInt *faceSize, const PetscInt *faces[]) 55 { 56 PetscInt *facesTmp; 57 PetscInt maxConeSize, maxSupportSize; 58 PetscErrorCode ierr; 59 60 PetscFunctionBegin; 61 PetscValidHeaderSpecific(dm, DM_CLASSID, 1); 62 if (faces && coneSize) PetscValidIntPointer(cone,4); 63 ierr = DMPlexGetMaxSizes(dm, &maxConeSize, &maxSupportSize);CHKERRQ(ierr); 64 if (faces) {ierr = DMGetWorkArray(dm, PetscSqr(PetscMax(maxConeSize, maxSupportSize)), MPIU_INT, &facesTmp);CHKERRQ(ierr);} 65 switch (dim) { 66 case 1: 67 switch (coneSize) { 68 case 2: 69 if (faces) { 70 facesTmp[0] = cone[0]; facesTmp[1] = cone[1]; 71 *faces = facesTmp; 72 } 73 if (numFaces) *numFaces = 2; 74 if (faceSize) *faceSize = 1; 75 break; 76 default: 77 SETERRQ2(PETSC_COMM_SELF, PETSC_ERR_ARG_OUTOFRANGE, "Cone size %D not supported for dimension %D", coneSize, dim); 78 } 79 break; 80 case 2: 81 switch (coneSize) { 82 case 3: 83 if (faces) { 84 facesTmp[0] = cone[0]; facesTmp[1] = cone[1]; 85 facesTmp[2] = cone[1]; facesTmp[3] = cone[2]; 86 facesTmp[4] = cone[2]; facesTmp[5] = cone[0]; 87 *faces = facesTmp; 88 } 89 if (numFaces) *numFaces = 3; 90 if (faceSize) *faceSize = 2; 91 break; 92 case 4: 93 /* Vertices follow right hand rule */ 94 if (faces) { 95 facesTmp[0] = cone[0]; facesTmp[1] = cone[1]; 96 facesTmp[2] = cone[1]; facesTmp[3] = cone[2]; 97 facesTmp[4] = cone[2]; facesTmp[5] = cone[3]; 98 facesTmp[6] = cone[3]; facesTmp[7] = cone[0]; 99 *faces = facesTmp; 100 } 101 if (numFaces) *numFaces = 4; 102 if (faceSize) *faceSize = 2; 103 break; 104 default: 105 SETERRQ2(PETSC_COMM_SELF, PETSC_ERR_ARG_OUTOFRANGE, "Cone size %D not supported for dimension %D", coneSize, dim); 106 } 107 break; 108 case 3: 109 switch (coneSize) { 110 case 3: 111 if (faces) { 112 facesTmp[0] = cone[0]; facesTmp[1] = cone[1]; 113 facesTmp[2] = cone[1]; facesTmp[3] = cone[2]; 114 facesTmp[4] = cone[2]; facesTmp[5] = cone[0]; 115 *faces = facesTmp; 116 } 117 if (numFaces) *numFaces = 3; 118 if (faceSize) *faceSize = 2; 119 break; 120 case 4: 121 /* Vertices of first face follow right hand rule and normal points away from last vertex */ 122 if (faces) { 123 facesTmp[0] = cone[0]; facesTmp[1] = cone[1]; facesTmp[2] = cone[2]; 124 facesTmp[3] = cone[0]; facesTmp[4] = cone[3]; facesTmp[5] = cone[1]; 125 facesTmp[6] = cone[0]; facesTmp[7] = cone[2]; facesTmp[8] = cone[3]; 126 facesTmp[9] = cone[2]; facesTmp[10] = cone[1]; facesTmp[11] = cone[3]; 127 *faces = facesTmp; 128 } 129 if (numFaces) *numFaces = 4; 130 if (faceSize) *faceSize = 3; 131 break; 132 case 8: 133 /* 7--------6 134 /| /| 135 / | / | 136 4--------5 | 137 | | | | 138 | | | | 139 | 1--------2 140 | / | / 141 |/ |/ 142 0--------3 143 */ 144 if (faces) { 145 facesTmp[0] = cone[0]; facesTmp[1] = cone[1]; facesTmp[2] = cone[2]; facesTmp[3] = cone[3]; /* Bottom */ 146 facesTmp[4] = cone[4]; facesTmp[5] = cone[5]; facesTmp[6] = cone[6]; facesTmp[7] = cone[7]; /* Top */ 147 facesTmp[8] = cone[0]; facesTmp[9] = cone[3]; facesTmp[10] = cone[5]; facesTmp[11] = cone[4]; /* Front */ 148 facesTmp[12] = cone[2]; facesTmp[13] = cone[1]; facesTmp[14] = cone[7]; facesTmp[15] = cone[6]; /* Back */ 149 facesTmp[16] = cone[3]; facesTmp[17] = cone[2]; facesTmp[18] = cone[6]; facesTmp[19] = cone[5]; /* Right */ 150 facesTmp[20] = cone[0]; facesTmp[21] = cone[4]; facesTmp[22] = cone[7]; facesTmp[23] = cone[1]; /* Left */ 151 *faces = facesTmp; 152 } 153 if (numFaces) *numFaces = 6; 154 if (faceSize) *faceSize = 4; 155 break; 156 default: 157 SETERRQ2(PETSC_COMM_SELF, PETSC_ERR_ARG_OUTOFRANGE, "Cone size %D not supported for dimension %D", coneSize, dim); 158 } 159 break; 160 default: 161 SETERRQ1(PETSC_COMM_SELF, PETSC_ERR_ARG_OUTOFRANGE, "Dimension %D not supported", dim); 162 } 163 PetscFunctionReturn(0); 164 } 165 166 /* 167 DMPlexGetRawFacesHybrid_Internal - Gets groups of vertices that correspond to faces for the given cone using hybrid ordering (prisms) 168 */ 169 static PetscErrorCode DMPlexGetRawFacesHybrid_Internal(DM dm, PetscInt dim, PetscInt coneSize, const PetscInt cone[], PetscInt *numFaces, PetscInt *numFacesNotH, PetscInt *faceSize, const PetscInt *faces[]) 170 { 171 PetscInt *facesTmp; 172 PetscInt maxConeSize, maxSupportSize; 173 PetscErrorCode ierr; 174 175 PetscFunctionBegin; 176 PetscValidHeaderSpecific(dm, DM_CLASSID, 1); 177 if (faces && coneSize) PetscValidIntPointer(cone,4); 178 ierr = DMPlexGetMaxSizes(dm, &maxConeSize, &maxSupportSize);CHKERRQ(ierr); 179 if (faces) {ierr = DMGetWorkArray(dm, PetscSqr(PetscMax(maxConeSize, maxSupportSize)), MPIU_INT, &facesTmp);CHKERRQ(ierr);} 180 switch (dim) { 181 case 1: 182 switch (coneSize) { 183 case 2: 184 if (faces) { 185 facesTmp[0] = cone[0]; facesTmp[1] = cone[1]; 186 *faces = facesTmp; 187 } 188 if (numFaces) *numFaces = 2; 189 if (numFacesNotH) *numFacesNotH = 2; 190 if (faceSize) *faceSize = 1; 191 break; 192 default: 193 SETERRQ2(PETSC_COMM_SELF, PETSC_ERR_ARG_OUTOFRANGE, "Cone size %D not supported for dimension %D", coneSize, dim); 194 } 195 break; 196 case 2: 197 switch (coneSize) { 198 case 4: 199 if (faces) { 200 facesTmp[0] = cone[0]; facesTmp[1] = cone[1]; 201 facesTmp[2] = cone[2]; facesTmp[3] = cone[3]; 202 facesTmp[4] = cone[0]; facesTmp[5] = cone[2]; 203 facesTmp[6] = cone[1]; facesTmp[7] = cone[3]; 204 *faces = facesTmp; 205 } 206 if (numFaces) *numFaces = 4; 207 if (numFacesNotH) *numFacesNotH = 2; 208 if (faceSize) *faceSize = 2; 209 break; 210 default: 211 SETERRQ2(PETSC_COMM_SELF, PETSC_ERR_ARG_OUTOFRANGE, "Cone size %D not supported for dimension %D", coneSize, dim); 212 } 213 break; 214 case 3: 215 switch (coneSize) { 216 case 6: /* triangular prism */ 217 if (faces) { 218 facesTmp[0] = cone[0]; facesTmp[1] = cone[1]; facesTmp[2] = cone[2]; facesTmp[3] = -1; /* Bottom */ 219 facesTmp[4] = cone[3]; facesTmp[5] = cone[4]; facesTmp[6] = cone[5]; facesTmp[7] = -1; /* Top */ 220 facesTmp[8] = cone[0]; facesTmp[9] = cone[1]; facesTmp[10] = cone[3]; facesTmp[11] = cone[4]; /* Back left */ 221 facesTmp[12] = cone[1]; facesTmp[13] = cone[2]; facesTmp[14] = cone[4]; facesTmp[15] = cone[5]; /* Back right */ 222 facesTmp[16] = cone[2]; facesTmp[17] = cone[0]; facesTmp[18] = cone[5]; facesTmp[19] = cone[3]; /* Front */ 223 *faces = facesTmp; 224 } 225 if (numFaces) *numFaces = 5; 226 if (numFacesNotH) *numFacesNotH = 2; 227 if (faceSize) *faceSize = -4; 228 break; 229 default: 230 SETERRQ2(PETSC_COMM_SELF, PETSC_ERR_ARG_OUTOFRANGE, "Cone size %D not supported for dimension %D", coneSize, dim); 231 } 232 break; 233 default: 234 SETERRQ1(PETSC_COMM_SELF, PETSC_ERR_ARG_OUTOFRANGE, "Dimension %D not supported", dim); 235 } 236 PetscFunctionReturn(0); 237 } 238 239 static PetscErrorCode DMPlexRestoreRawFacesHybrid_Internal(DM dm, PetscInt dim, PetscInt coneSize, const PetscInt cone[], PetscInt *numFaces, PetscInt *numFacesNotH, PetscInt *faceSize, const PetscInt *faces[]) 240 { 241 PetscErrorCode ierr; 242 243 PetscFunctionBegin; 244 if (faces) { ierr = DMRestoreWorkArray(dm, 0, MPIU_INT, (void *) faces);CHKERRQ(ierr); } 245 PetscFunctionReturn(0); 246 } 247 248 static PetscErrorCode DMPlexGetFacesHybrid_Internal(DM dm, PetscInt dim, PetscInt p, PetscInt *numFaces, PetscInt *numFacesNotH, PetscInt *faceSize, const PetscInt *faces[]) 249 { 250 const PetscInt *cone = NULL; 251 PetscInt coneSize; 252 PetscErrorCode ierr; 253 254 PetscFunctionBegin; 255 PetscValidHeaderSpecific(dm, DM_CLASSID, 1); 256 ierr = DMPlexGetConeSize(dm, p, &coneSize);CHKERRQ(ierr); 257 ierr = DMPlexGetCone(dm, p, &cone);CHKERRQ(ierr); 258 ierr = DMPlexGetRawFacesHybrid_Internal(dm, dim, coneSize, cone, numFaces, numFacesNotH, faceSize, faces);CHKERRQ(ierr); 259 PetscFunctionReturn(0); 260 } 261 262 /* This interpolates faces for cells at some stratum */ 263 static PetscErrorCode DMPlexInterpolateFaces_Internal(DM dm, PetscInt cellDepth, DM idm) 264 { 265 DMLabel subpointMap; 266 PetscHashIJKL faceTable; 267 PetscInt *pStart, *pEnd; 268 PetscInt cellDim, depth, faceDepth = cellDepth, numPoints = 0, faceSizeAll = 0, face, c, d; 269 PetscInt coneSizeH = 0, faceSizeAllH = 0, numCellFacesH = 0, faceH, pMax = -1, dim, outerloop; 270 PetscInt cMax, fMax, eMax, vMax; 271 PetscErrorCode ierr; 272 273 PetscFunctionBegin; 274 ierr = DMGetDimension(dm, &cellDim);CHKERRQ(ierr); 275 /* HACK: I need a better way to determine face dimension, or an alternative to GetFaces() */ 276 ierr = DMPlexGetSubpointMap(dm, &subpointMap);CHKERRQ(ierr); 277 if (subpointMap) ++cellDim; 278 ierr = DMPlexGetDepth(dm, &depth);CHKERRQ(ierr); 279 ++depth; 280 ++cellDepth; 281 cellDim -= depth - cellDepth; 282 ierr = PetscMalloc2(depth+1,&pStart,depth+1,&pEnd);CHKERRQ(ierr); 283 for (d = depth-1; d >= faceDepth; --d) { 284 ierr = DMPlexGetDepthStratum(dm, d, &pStart[d+1], &pEnd[d+1]);CHKERRQ(ierr); 285 } 286 ierr = DMPlexGetDepthStratum(dm, -1, NULL, &pStart[faceDepth]);CHKERRQ(ierr); 287 pEnd[faceDepth] = pStart[faceDepth]; 288 for (d = faceDepth-1; d >= 0; --d) { 289 ierr = DMPlexGetDepthStratum(dm, d, &pStart[d], &pEnd[d]);CHKERRQ(ierr); 290 } 291 cMax = fMax = eMax = vMax = PETSC_DETERMINE; 292 ierr = DMGetDimension(dm, &dim);CHKERRQ(ierr); 293 if (cellDim == dim) { 294 ierr = DMPlexGetHybridBounds(dm, &cMax, NULL, NULL, NULL);CHKERRQ(ierr); 295 pMax = cMax; 296 } else if (cellDim == dim -1) { 297 ierr = DMPlexGetHybridBounds(dm, &cMax, &fMax, NULL, NULL);CHKERRQ(ierr); 298 pMax = fMax; 299 } 300 pMax = pMax < 0 ? pEnd[cellDepth] : pMax; 301 if (pMax < pEnd[cellDepth]) { 302 const PetscInt *cellFaces, *cone; 303 PetscInt numCellFacesT, faceSize, cf; 304 305 ierr = DMPlexGetConeSize(dm, pMax, &coneSizeH);CHKERRQ(ierr); 306 ierr = DMPlexGetCone(dm, pMax, &cone);CHKERRQ(ierr); 307 ierr = DMPlexGetRawFacesHybrid_Internal(dm, cellDim, coneSizeH, cone, &numCellFacesH, &numCellFacesT, &faceSize, &cellFaces);CHKERRQ(ierr); 308 if (faceSize < 0) { 309 PetscInt *sizes, minv, maxv; 310 311 /* count vertices of hybrid and non-hybrid faces */ 312 ierr = PetscCalloc1(numCellFacesH, &sizes);CHKERRQ(ierr); 313 for (cf = 0; cf < numCellFacesT; ++cf) { /* These are the non-hybrid faces */ 314 const PetscInt *cellFace = &cellFaces[-cf*faceSize]; 315 PetscInt f; 316 317 for (f = 0; f < -faceSize; ++f) sizes[cf] += (cellFace[f] >= 0 ? 1 : 0); 318 } 319 ierr = PetscSortInt(numCellFacesT, sizes);CHKERRQ(ierr); 320 minv = sizes[0]; 321 maxv = sizes[PetscMax(numCellFacesT-1, 0)]; 322 if (minv != maxv) SETERRQ2(PETSC_COMM_SELF, PETSC_ERR_SUP, "Different number of vertices for non-hybrid face %D != %D", minv, maxv); 323 faceSizeAll = minv; 324 ierr = PetscMemzero(sizes, numCellFacesH*sizeof(PetscInt));CHKERRQ(ierr); 325 for (cf = numCellFacesT; cf < numCellFacesH; ++cf) { /* These are the hybrid faces */ 326 const PetscInt *cellFace = &cellFaces[-cf*faceSize]; 327 PetscInt f; 328 329 for (f = 0; f < -faceSize; ++f) sizes[cf-numCellFacesT] += (cellFace[f] >= 0 ? 1 : 0); 330 } 331 ierr = PetscSortInt(numCellFacesH - numCellFacesT, sizes);CHKERRQ(ierr); 332 minv = sizes[0]; 333 maxv = sizes[PetscMax(numCellFacesH - numCellFacesT-1, 0)]; 334 ierr = PetscFree(sizes);CHKERRQ(ierr); 335 if (minv != maxv) SETERRQ2(PETSC_COMM_SELF, PETSC_ERR_SUP, "Different number of vertices for hybrid face %D != %D", minv, maxv); 336 faceSizeAllH = minv; 337 } else { /* the size of the faces in hybrid cells is the same */ 338 faceSizeAll = faceSizeAllH = faceSize; 339 } 340 ierr = DMPlexRestoreRawFacesHybrid_Internal(dm, cellDim, coneSizeH, cone, &numCellFacesH, &numCellFacesT, &faceSize, &cellFaces);CHKERRQ(ierr); 341 } else if (pEnd[cellDepth] > pStart[cellDepth]) { 342 ierr = DMPlexGetFaces_Internal(dm, cellDim, pStart[cellDepth], NULL, &faceSizeAll, NULL);CHKERRQ(ierr); 343 } 344 if (faceSizeAll > 4) SETERRQ1(PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "Do not support interpolation of meshes with faces of %D vertices", faceSizeAll); 345 346 /* With hybrid grids, we first iterate on hybrid cells and start numbering the non-hybrid grids 347 Then, faces for non-hybrid cells are numbered. 348 This is to guarantee consistent orientations (all 0) of all the points in the cone of the hybrid cells */ 349 ierr = PetscHashIJKLCreate(&faceTable);CHKERRQ(ierr); 350 for (outerloop = 0, face = pStart[faceDepth]; outerloop < 2; outerloop++) { 351 PetscInt start, end; 352 353 start = outerloop == 0 ? pMax : pStart[cellDepth]; 354 end = outerloop == 0 ? pEnd[cellDepth] : pMax; 355 for (c = start; c < end; ++c) { 356 const PetscInt *cellFaces; 357 PetscInt numCellFaces, faceSize, faceSizeInc, cf; 358 359 if (c < pMax) { 360 ierr = DMPlexGetFaces_Internal(dm, cellDim, c, &numCellFaces, &faceSize, &cellFaces);CHKERRQ(ierr); 361 if (faceSize != faceSizeAll) SETERRQ3(PETSC_COMM_SELF, PETSC_ERR_PLIB, "Inconsistent face for cell %D of size %D != %D", c, faceSize, faceSizeAll); 362 } else { /* Hybrid cell */ 363 const PetscInt *cone; 364 PetscInt numCellFacesN, coneSize; 365 366 ierr = DMPlexGetConeSize(dm, c, &coneSize);CHKERRQ(ierr); 367 if (coneSize != coneSizeH) SETERRQ2(PETSC_COMM_SELF, PETSC_ERR_SUP, "Unexpected hybrid coneSize %D != %D", coneSize, coneSizeH); 368 ierr = DMPlexGetCone(dm, c, &cone);CHKERRQ(ierr); 369 ierr = DMPlexGetRawFacesHybrid_Internal(dm, cellDim, coneSize, cone, &numCellFaces, &numCellFacesN, &faceSize, &cellFaces);CHKERRQ(ierr); 370 if (numCellFaces != numCellFacesH) SETERRQ3(PETSC_COMM_SELF, PETSC_ERR_SUP, "Unexpected numCellFaces %D != %D for hybrid cell %D", numCellFaces, numCellFacesH, c); 371 faceSize = PetscMax(faceSize, -faceSize); 372 if (faceSize > 4) SETERRQ1(PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "Do not support interpolation of meshes with faces of %D vertices", faceSize); 373 numCellFaces = numCellFacesN; /* process only non-hybrid faces */ 374 } 375 faceSizeInc = faceSize; 376 for (cf = 0; cf < numCellFaces; ++cf) { 377 const PetscInt *cellFace = &cellFaces[cf*faceSizeInc]; 378 PetscInt faceSizeH = faceSize; 379 PetscHashIJKLKey key; 380 PetscHashIter iter; 381 PetscBool missing; 382 383 if (faceSizeInc == 2) { 384 key.i = PetscMin(cellFace[0], cellFace[1]); 385 key.j = PetscMax(cellFace[0], cellFace[1]); 386 key.k = PETSC_MAX_INT; 387 key.l = PETSC_MAX_INT; 388 } else { 389 key.i = cellFace[0]; 390 key.j = cellFace[1]; 391 key.k = cellFace[2]; 392 key.l = faceSize > 3 ? (cellFace[3] < 0 ? faceSizeH = 3, PETSC_MAX_INT : cellFace[3]) : PETSC_MAX_INT; 393 ierr = PetscSortInt(faceSize, (PetscInt *) &key);CHKERRQ(ierr); 394 } 395 /* this check is redundant for non-hybrid meshes */ 396 if (faceSizeH != faceSizeAll) SETERRQ4(PETSC_COMM_SELF, PETSC_ERR_SUP, "Unexpected number of vertices for face %D of point %D -> %D != %D", cf, c, faceSizeH, faceSizeAll); 397 ierr = PetscHashIJKLPut(faceTable, key, &iter, &missing);CHKERRQ(ierr); 398 if (missing) {ierr = PetscHashIJKLIterSet(faceTable, iter, face++);CHKERRQ(ierr);} 399 } 400 if (c < pMax) { 401 ierr = DMPlexRestoreFaces_Internal(dm, cellDim, c, &numCellFaces, &faceSize, &cellFaces);CHKERRQ(ierr); 402 } else { 403 ierr = DMPlexRestoreRawFacesHybrid_Internal(dm, cellDim, coneSizeH, NULL, NULL, NULL, NULL, &cellFaces);CHKERRQ(ierr); 404 } 405 } 406 } 407 pEnd[faceDepth] = face; 408 409 /* Second pass for hybrid meshes: number hybrid faces */ 410 for (c = pMax; c < pEnd[cellDepth]; ++c) { 411 const PetscInt *cellFaces, *cone; 412 PetscInt numCellFaces, numCellFacesN, faceSize, cf, coneSize; 413 414 ierr = DMPlexGetConeSize(dm, c, &coneSize);CHKERRQ(ierr); 415 ierr = DMPlexGetCone(dm, c, &cone);CHKERRQ(ierr); 416 ierr = DMPlexGetRawFacesHybrid_Internal(dm, cellDim, coneSize, cone, &numCellFaces, &numCellFacesN, &faceSize, &cellFaces);CHKERRQ(ierr); 417 if (numCellFaces != numCellFacesH) SETERRQ2(PETSC_COMM_SELF, PETSC_ERR_SUP, "Unexpected hybrid numCellFaces %D != %D", numCellFaces, numCellFacesH); 418 faceSize = PetscMax(faceSize, -faceSize); 419 for (cf = numCellFacesN; cf < numCellFaces; ++cf) { /* These are the hybrid faces */ 420 const PetscInt *cellFace = &cellFaces[cf*faceSize]; 421 PetscHashIJKLKey key; 422 PetscHashIter iter; 423 PetscBool missing; 424 PetscInt faceSizeH = faceSize; 425 426 if (faceSize == 2) { 427 key.i = PetscMin(cellFace[0], cellFace[1]); 428 key.j = PetscMax(cellFace[0], cellFace[1]); 429 key.k = PETSC_MAX_INT; 430 key.l = PETSC_MAX_INT; 431 } else { 432 key.i = cellFace[0]; 433 key.j = cellFace[1]; 434 key.k = cellFace[2]; 435 key.l = faceSize > 3 ? (cellFace[3] < 0 ? faceSizeH = 3, PETSC_MAX_INT : cellFace[3]) : PETSC_MAX_INT; 436 ierr = PetscSortInt(faceSize, (PetscInt *) &key);CHKERRQ(ierr); 437 } 438 if (faceSizeH != faceSizeAllH) SETERRQ4(PETSC_COMM_SELF, PETSC_ERR_SUP, "Unexpected number of vertices for hybrid face %D of point %D -> %D != %D", cf, c, faceSizeH, faceSizeAllH); 439 ierr = PetscHashIJKLPut(faceTable, key, &iter, &missing);CHKERRQ(ierr); 440 if (missing) {ierr = PetscHashIJKLIterSet(faceTable, iter, face++);CHKERRQ(ierr);} 441 } 442 ierr = DMPlexRestoreRawFacesHybrid_Internal(dm, cellDim, coneSize, cone, &numCellFaces, &numCellFacesN, &faceSize, &cellFaces);CHKERRQ(ierr); 443 } 444 faceH = face - pEnd[faceDepth]; 445 if (faceH) { 446 if (fMax == PETSC_DETERMINE) fMax = pEnd[faceDepth]; 447 else if (eMax == PETSC_DETERMINE) eMax = pEnd[faceDepth]; 448 else SETERRQ3(PETSC_COMM_SELF, PETSC_ERR_PLIB, "Number of unassigned hybrid facets %D for cellDim %D and dimension %D", faceH, cellDim, dim); 449 } 450 pEnd[faceDepth] = face; 451 ierr = PetscHashIJKLDestroy(&faceTable);CHKERRQ(ierr); 452 /* Count new points */ 453 for (d = 0; d <= depth; ++d) { 454 numPoints += pEnd[d]-pStart[d]; 455 } 456 ierr = DMPlexSetChart(idm, 0, numPoints);CHKERRQ(ierr); 457 /* Set cone sizes */ 458 for (d = 0; d <= depth; ++d) { 459 PetscInt coneSize, p; 460 461 if (d == faceDepth) { 462 /* I see no way to do this if we admit faces of different shapes */ 463 for (p = pStart[d]; p < pEnd[d]-faceH; ++p) { 464 ierr = DMPlexSetConeSize(idm, p, faceSizeAll);CHKERRQ(ierr); 465 } 466 for (p = pEnd[d]-faceH; p < pEnd[d]; ++p) { 467 ierr = DMPlexSetConeSize(idm, p, faceSizeAllH);CHKERRQ(ierr); 468 } 469 } else if (d == cellDepth) { 470 for (p = pStart[d]; p < pEnd[d]; ++p) { 471 /* Number of cell faces may be different from number of cell vertices*/ 472 if (p < pMax) { 473 ierr = DMPlexGetFaces_Internal(dm, cellDim, p, &coneSize, NULL, NULL);CHKERRQ(ierr); 474 } else { 475 ierr = DMPlexGetFacesHybrid_Internal(dm, cellDim, p, &coneSize, NULL, NULL, NULL);CHKERRQ(ierr); 476 } 477 ierr = DMPlexSetConeSize(idm, p, coneSize);CHKERRQ(ierr); 478 } 479 } else { 480 for (p = pStart[d]; p < pEnd[d]; ++p) { 481 ierr = DMPlexGetConeSize(dm, p, &coneSize);CHKERRQ(ierr); 482 ierr = DMPlexSetConeSize(idm, p, coneSize);CHKERRQ(ierr); 483 } 484 } 485 } 486 ierr = DMSetUp(idm);CHKERRQ(ierr); 487 /* Get face cones from subsets of cell vertices */ 488 if (faceSizeAll > 4) SETERRQ1(PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "Do not support interpolation of meshes with faces of %D vertices", faceSizeAll); 489 ierr = PetscHashIJKLCreate(&faceTable);CHKERRQ(ierr); 490 for (d = depth; d > cellDepth; --d) { 491 const PetscInt *cone; 492 PetscInt p; 493 494 for (p = pStart[d]; p < pEnd[d]; ++p) { 495 ierr = DMPlexGetCone(dm, p, &cone);CHKERRQ(ierr); 496 ierr = DMPlexSetCone(idm, p, cone);CHKERRQ(ierr); 497 ierr = DMPlexGetConeOrientation(dm, p, &cone);CHKERRQ(ierr); 498 ierr = DMPlexSetConeOrientation(idm, p, cone);CHKERRQ(ierr); 499 } 500 } 501 for (outerloop = 0, face = pStart[faceDepth]; outerloop < 2; outerloop++) { 502 PetscInt start, end; 503 504 start = outerloop == 0 ? pMax : pStart[cellDepth]; 505 end = outerloop == 0 ? pEnd[cellDepth] : pMax; 506 for (c = start; c < end; ++c) { 507 const PetscInt *cellFaces; 508 PetscInt numCellFaces, faceSize, faceSizeInc, cf; 509 510 if (c < pMax) { 511 ierr = DMPlexGetFaces_Internal(dm, cellDim, c, &numCellFaces, &faceSize, &cellFaces);CHKERRQ(ierr); 512 if (faceSize != faceSizeAll) SETERRQ3(PETSC_COMM_SELF, PETSC_ERR_PLIB, "Inconsistent face for cell %D of size %D != %D", c, faceSize, faceSizeAll); 513 } else { 514 const PetscInt *cone; 515 PetscInt numCellFacesN, coneSize; 516 517 ierr = DMPlexGetConeSize(dm, c, &coneSize);CHKERRQ(ierr); 518 if (coneSize != coneSizeH) SETERRQ2(PETSC_COMM_SELF, PETSC_ERR_SUP, "Unexpected hybrid coneSize %D != %D", coneSize, coneSizeH); 519 ierr = DMPlexGetCone(dm, c, &cone);CHKERRQ(ierr); 520 ierr = DMPlexGetRawFacesHybrid_Internal(dm, cellDim, coneSize, cone, &numCellFaces, &numCellFacesN, &faceSize, &cellFaces);CHKERRQ(ierr); 521 if (numCellFaces != numCellFacesH) SETERRQ3(PETSC_COMM_SELF, PETSC_ERR_SUP, "Unexpected numCellFaces %D != %D for hybrid cell %D", numCellFaces, numCellFacesH, c); 522 faceSize = PetscMax(faceSize, -faceSize); 523 if (faceSize > 4) SETERRQ1(PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "Do not support interpolation of meshes with faces of %D vertices", faceSize); 524 numCellFaces = numCellFacesN; /* process only non-hybrid faces */ 525 } 526 faceSizeInc = faceSize; 527 for (cf = 0; cf < numCellFaces; ++cf) { 528 const PetscInt *cellFace = &cellFaces[cf*faceSizeInc]; 529 PetscHashIJKLKey key; 530 PetscHashIter iter; 531 PetscBool missing; 532 533 if (faceSizeInc == 2) { 534 key.i = PetscMin(cellFace[0], cellFace[1]); 535 key.j = PetscMax(cellFace[0], cellFace[1]); 536 key.k = PETSC_MAX_INT; 537 key.l = PETSC_MAX_INT; 538 } else { 539 key.i = cellFace[0]; 540 key.j = cellFace[1]; 541 key.k = cellFace[2]; 542 key.l = faceSizeInc > 3 ? (cellFace[3] < 0 ? faceSize = 3, PETSC_MAX_INT : cellFace[3]) : PETSC_MAX_INT; 543 ierr = PetscSortInt(faceSizeInc, (PetscInt *) &key);CHKERRQ(ierr); 544 } 545 ierr = PetscHashIJKLPut(faceTable, key, &iter, &missing);CHKERRQ(ierr); 546 if (missing) { 547 ierr = DMPlexSetCone(idm, face, cellFace);CHKERRQ(ierr); 548 ierr = PetscHashIJKLIterSet(faceTable, iter, face);CHKERRQ(ierr); 549 ierr = DMPlexInsertCone(idm, c, cf, face++);CHKERRQ(ierr); 550 } else { 551 const PetscInt *cone; 552 PetscInt coneSize, ornt, i, j, f; 553 554 ierr = PetscHashIJKLIterGet(faceTable, iter, &f);CHKERRQ(ierr); 555 ierr = DMPlexInsertCone(idm, c, cf, f);CHKERRQ(ierr); 556 /* Orient face: Do not allow reverse orientation at the first vertex */ 557 ierr = DMPlexGetConeSize(idm, f, &coneSize);CHKERRQ(ierr); 558 ierr = DMPlexGetCone(idm, f, &cone);CHKERRQ(ierr); 559 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); 560 /* - First find the initial vertex */ 561 for (i = 0; i < faceSize; ++i) if (cellFace[0] == cone[i]) break; 562 /* - Try forward comparison */ 563 for (j = 0; j < faceSize; ++j) if (cellFace[j] != cone[(i+j)%faceSize]) break; 564 if (j == faceSize) { 565 if ((faceSize == 2) && (i == 1)) ornt = -2; 566 else ornt = i; 567 } else { 568 /* - Try backward comparison */ 569 for (j = 0; j < faceSize; ++j) if (cellFace[j] != cone[(i+faceSize-j)%faceSize]) break; 570 if (j == faceSize) { 571 if (i == 0) ornt = -faceSize; 572 else ornt = -i; 573 } else SETERRQ(PETSC_COMM_SELF, PETSC_ERR_PLIB, "Could not determine face orientation"); 574 } 575 ierr = DMPlexInsertConeOrientation(idm, c, cf, ornt);CHKERRQ(ierr); 576 } 577 } 578 if (c < pMax) { 579 ierr = DMPlexRestoreFaces_Internal(dm, cellDim, c, &numCellFaces, &faceSize, &cellFaces);CHKERRQ(ierr); 580 } else { 581 ierr = DMPlexRestoreRawFacesHybrid_Internal(dm, cellDim, coneSizeH, NULL, NULL, NULL, NULL, &cellFaces);CHKERRQ(ierr); 582 } 583 } 584 } 585 /* Second pass for hybrid meshes: orient hybrid faces */ 586 for (c = pMax; c < pEnd[cellDepth]; ++c) { 587 const PetscInt *cellFaces, *cone; 588 PetscInt numCellFaces, numCellFacesN, faceSize, cf, coneSize; 589 590 ierr = DMPlexGetConeSize(dm, c, &coneSize);CHKERRQ(ierr); 591 ierr = DMPlexGetCone(dm, c, &cone);CHKERRQ(ierr); 592 ierr = DMPlexGetRawFacesHybrid_Internal(dm, cellDim, coneSize, cone, &numCellFaces, &numCellFacesN, &faceSize, &cellFaces);CHKERRQ(ierr); 593 if (numCellFaces != numCellFacesH) SETERRQ2(PETSC_COMM_SELF, PETSC_ERR_SUP, "Unexpected hybrid numCellFaces %D != %D", numCellFaces, numCellFacesH); 594 faceSize = PetscMax(faceSize, -faceSize); 595 for (cf = numCellFacesN; cf < numCellFaces; ++cf) { /* These are the hybrid faces */ 596 const PetscInt *cellFace = &cellFaces[cf*faceSize]; 597 PetscHashIJKLKey key; 598 PetscHashIter iter; 599 PetscBool missing; 600 PetscInt faceSizeH = faceSize; 601 602 if (faceSize == 2) { 603 key.i = PetscMin(cellFace[0], cellFace[1]); 604 key.j = PetscMax(cellFace[0], cellFace[1]); 605 key.k = PETSC_MAX_INT; 606 key.l = PETSC_MAX_INT; 607 } else { 608 key.i = cellFace[0]; 609 key.j = cellFace[1]; 610 key.k = cellFace[2]; 611 key.l = faceSize > 3 ? (cellFace[3] < 0 ? faceSizeH = 3, PETSC_MAX_INT : cellFace[3]) : PETSC_MAX_INT; 612 ierr = PetscSortInt(faceSize, (PetscInt *) &key);CHKERRQ(ierr); 613 } 614 if (faceSizeH != faceSizeAllH) SETERRQ4(PETSC_COMM_SELF, PETSC_ERR_SUP, "Unexpected number of vertices for hybrid face %D of point %D -> %D != %D", cf, c, faceSizeH, faceSizeAllH); 615 ierr = PetscHashIJKLPut(faceTable, key, &iter, &missing);CHKERRQ(ierr); 616 if (missing) { 617 ierr = DMPlexSetCone(idm, face, cellFace);CHKERRQ(ierr); 618 ierr = PetscHashIJKLIterSet(faceTable, iter, face);CHKERRQ(ierr); 619 ierr = DMPlexInsertCone(idm, c, cf, face++);CHKERRQ(ierr); 620 } else { 621 const PetscInt *cone; 622 PetscInt coneSize, ornt, i, j, f; 623 624 ierr = PetscHashIJKLIterGet(faceTable, iter, &f);CHKERRQ(ierr); 625 ierr = DMPlexInsertCone(idm, c, cf, f);CHKERRQ(ierr); 626 /* Orient face: Do not allow reverse orientation at the first vertex */ 627 ierr = DMPlexGetConeSize(idm, f, &coneSize);CHKERRQ(ierr); 628 ierr = DMPlexGetCone(idm, f, &cone);CHKERRQ(ierr); 629 if (coneSize != faceSizeH) SETERRQ3(PETSC_COMM_SELF, PETSC_ERR_PLIB, "Invalid number of face vertices %D for face %D should be %D", coneSize, f, faceSizeH); 630 /* - First find the initial vertex */ 631 for (i = 0; i < faceSizeH; ++i) if (cellFace[0] == cone[i]) break; 632 /* - Try forward comparison */ 633 for (j = 0; j < faceSizeH; ++j) if (cellFace[j] != cone[(i+j)%faceSizeH]) break; 634 if (j == faceSizeH) { 635 if ((faceSizeH == 2) && (i == 1)) ornt = -2; 636 else ornt = i; 637 } else { 638 /* - Try backward comparison */ 639 for (j = 0; j < faceSizeH; ++j) if (cellFace[j] != cone[(i+faceSizeH-j)%faceSizeH]) break; 640 if (j == faceSizeH) { 641 if (i == 0) ornt = -faceSizeH; 642 else ornt = -i; 643 } else SETERRQ(PETSC_COMM_SELF, PETSC_ERR_PLIB, "Could not determine face orientation"); 644 } 645 ierr = DMPlexInsertConeOrientation(idm, c, cf, ornt);CHKERRQ(ierr); 646 } 647 } 648 ierr = DMPlexRestoreRawFacesHybrid_Internal(dm, cellDim, coneSize, cone, &numCellFaces, &numCellFacesN, &faceSize, &cellFaces);CHKERRQ(ierr); 649 } 650 if (face != pEnd[faceDepth]) SETERRQ2(PETSC_COMM_SELF, PETSC_ERR_PLIB, "Invalid number of faces %D should be %D", face-pStart[faceDepth], pEnd[faceDepth]-pStart[faceDepth]); 651 ierr = PetscFree2(pStart,pEnd);CHKERRQ(ierr); 652 ierr = PetscHashIJKLDestroy(&faceTable);CHKERRQ(ierr); 653 ierr = PetscFree2(pStart,pEnd);CHKERRQ(ierr); 654 ierr = DMPlexSetHybridBounds(idm, cMax, fMax, eMax, vMax);CHKERRQ(ierr); 655 ierr = DMPlexSymmetrize(idm);CHKERRQ(ierr); 656 ierr = DMPlexStratify(idm);CHKERRQ(ierr); 657 PetscFunctionReturn(0); 658 } 659 660 PetscErrorCode DMPlexOrientCell(DM dm, PetscInt p, PetscInt masterConeSize, const PetscInt masterCone[]) 661 { 662 PetscInt c, coneSize; 663 PetscInt start1; 664 PetscBool reverse1; 665 const PetscInt *cone; 666 PetscErrorCode ierr; 667 668 PetscFunctionBegin; 669 ierr = DMPlexGetConeSize(dm, p, &coneSize);CHKERRQ(ierr); 670 if (!coneSize) PetscFunctionReturn(0); /* do nothing for points with no cone */ 671 ierr = DMPlexGetCone(dm, p, &cone);CHKERRQ(ierr); 672 ierr = DMPlexFixFaceOrientations_Orient_Private(coneSize, masterConeSize, masterCone, cone, &start1, &reverse1);CHKERRQ(ierr); 673 #if defined(PETSC_USE_DEBUG) 674 if (PetscUnlikely(cone[start1] != masterCone[0])) SETERRQ3(PETSC_COMM_SELF, PETSC_ERR_PLIB, "The algorithm above is wrong as cone[%d] = %d != %d = masterCone[0]", start1, cone[start1], masterCone[0]); 675 #endif 676 ierr = DMPlexOrientCell_Internal(dm, p, start1, reverse1);CHKERRQ(ierr); 677 #if defined(PETSC_USE_DEBUG) 678 ierr = DMPlexGetCone(dm, p, &cone);CHKERRQ(ierr); 679 for (c = 0; c < 2; c++) { 680 if (PetscUnlikely(cone[c] != masterCone[c])) SETERRQ4(PETSC_COMM_SELF, PETSC_ERR_PLIB, "The algorithm above is wrong as cone[%d] = %d != %d = masterCone[%d]", c, cone[c], masterCone[c], c); 681 } 682 #endif 683 PetscFunctionReturn(0); 684 } 685 686 PetscErrorCode DMPlexOrientCell_Internal(DM dm, PetscInt p, PetscInt start1, PetscInt reverse1) 687 { 688 PetscInt i, j, k, maxConeSize, coneSize, coneConeSize, supportSize, supportConeSize; 689 PetscInt start0, start; 690 PetscBool reverse0, reverse; 691 PetscInt newornt; 692 const PetscInt *cone, *support, *supportCone, *ornts; 693 PetscInt *newcone, *newornts; 694 PetscErrorCode ierr; 695 696 PetscFunctionBegin; 697 if (!start1 && !reverse1) PetscFunctionReturn(0); 698 ierr = DMPlexGetConeSize(dm, p, &coneSize);CHKERRQ(ierr); 699 if (!coneSize) PetscFunctionReturn(0); /* do nothing for points with no cone */ 700 ierr = DMPlexGetCone(dm, p, &cone);CHKERRQ(ierr); 701 ierr = DMPlexGetMaxSizes(dm, &maxConeSize, NULL);CHKERRQ(ierr); 702 /* permute p's cone and orientations */ 703 ierr = DMPlexGetConeOrientation(dm, p, &ornts);CHKERRQ(ierr); 704 ierr = DMGetWorkArray(dm, maxConeSize, MPIU_INT, &newcone);CHKERRQ(ierr); 705 ierr = DMGetWorkArray(dm, maxConeSize, MPIU_INT, &newornts);CHKERRQ(ierr); 706 ierr = DMPlexFixFaceOrientations_Permute_Private(coneSize, cone, start1, reverse1, newcone);CHKERRQ(ierr); 707 ierr = DMPlexFixFaceOrientations_Permute_Private(coneSize, ornts, start1, reverse1, newornts);CHKERRQ(ierr); 708 /* if direction of p (face) is flipped, flip also p's cone points (edges) */ 709 if (reverse1) { 710 for (i=0; i<coneSize; i++) { 711 ierr = DMPlexGetConeSize(dm, cone[i], &coneConeSize);CHKERRQ(ierr); 712 ierr = DMPlexFixFaceOrientations_Translate_Private(newornts[i], &start0, &reverse0);CHKERRQ(ierr); 713 ierr = DMPlexFixFaceOrientations_Combine_Private(coneConeSize, start0, reverse0, 1, PETSC_FALSE, &start, &reverse);CHKERRQ(ierr); 714 ierr = DMPlexFixFaceOrientations_TranslateBack_Private(coneConeSize, start, reverse, &newornts[i]);CHKERRQ(ierr); 715 } 716 } 717 ierr = DMPlexSetConeOrientation(dm, p, newornts);CHKERRQ(ierr); 718 /* fix oriention of p within cones of p's support points */ 719 ierr = DMPlexGetSupport(dm, p, &support);CHKERRQ(ierr); 720 ierr = DMPlexGetSupportSize(dm, p, &supportSize);CHKERRQ(ierr); 721 for (j=0; j<supportSize; j++) { 722 ierr = DMPlexGetCone(dm, support[j], &supportCone);CHKERRQ(ierr); 723 ierr = DMPlexGetConeSize(dm, support[j], &supportConeSize);CHKERRQ(ierr); 724 ierr = DMPlexGetConeOrientation(dm, support[j], &ornts);CHKERRQ(ierr); 725 for (k=0; k<supportConeSize; k++) { 726 if (supportCone[k] != p) continue; 727 ierr = DMPlexFixFaceOrientations_Translate_Private(ornts[k], &start0, &reverse0);CHKERRQ(ierr); 728 ierr = DMPlexFixFaceOrientations_Combine_Private(coneSize, start0, reverse0, start1, reverse1, &start, &reverse);CHKERRQ(ierr); 729 ierr = DMPlexFixFaceOrientations_TranslateBack_Private(coneSize, start, reverse, &newornt);CHKERRQ(ierr); 730 ierr = DMPlexInsertConeOrientation(dm, support[j], k, newornt);CHKERRQ(ierr); 731 } 732 } 733 /* rewrite cone */ 734 ierr = DMPlexSetCone(dm, p, newcone);CHKERRQ(ierr); 735 ierr = DMRestoreWorkArray(dm, maxConeSize, MPIU_INT, &newcone);CHKERRQ(ierr); 736 ierr = DMRestoreWorkArray(dm, maxConeSize, MPIU_INT, &newornts);CHKERRQ(ierr); 737 PetscFunctionReturn(0); 738 } 739 740 static PetscErrorCode SortRmineRremoteByRemote_Private(PetscSF sf, PetscInt *rmine1[], PetscInt *rremote1[]) 741 { 742 PetscInt nleaves; 743 PetscInt nranks; 744 const PetscMPIInt *ranks; 745 const PetscInt *roffset, *rmine, *rremote; 746 PetscInt n, o, r; 747 PetscErrorCode ierr; 748 749 PetscFunctionBegin; 750 ierr = PetscSFGetRanks(sf, &nranks, &ranks, &roffset, &rmine, &rremote);CHKERRQ(ierr); 751 nleaves = roffset[nranks]; 752 ierr = PetscMalloc2(nleaves, rmine1, nleaves, rremote1);CHKERRQ(ierr); 753 for (r=0; r<nranks; r++) { 754 /* simultaneously sort rank-wise portions of rmine & rremote by values in rremote 755 - to unify order with the other side */ 756 o = roffset[r]; 757 n = roffset[r+1] - o; 758 ierr = PetscMemcpy(&(*rmine1)[o], &rmine[o], n*sizeof(PetscInt));CHKERRQ(ierr); 759 ierr = PetscMemcpy(&(*rremote1)[o], &rremote[o], n*sizeof(PetscInt));CHKERRQ(ierr); 760 ierr = PetscSortIntWithArray(n, &(*rremote1)[o], &(*rmine1)[o]);CHKERRQ(ierr); 761 } 762 PetscFunctionReturn(0); 763 } 764 765 PetscErrorCode DMPlexOrientInterface(DM dm) 766 { 767 PetscSF sf; 768 PetscInt (*roots)[2], (*leaves)[2]; 769 PetscMPIInt (*rootsRanks)[2], (*leavesRanks)[2]; 770 const PetscInt *locals; 771 const PetscSFNode *remotes; 772 PetscInt nroots, nleaves, p, c; 773 PetscInt nranks, n, o, r; 774 const PetscMPIInt *ranks; 775 const PetscInt *roffset; 776 PetscInt *rmine1, *rremote1; /* rmine and rremote copies simultaneously sorted by rank and rremote */ 777 const PetscInt *cone; 778 PetscInt coneSize, ind0; 779 MPI_Comm comm; 780 PetscMPIInt rank; 781 PetscInt debug = 0; 782 PetscErrorCode ierr; 783 784 PetscFunctionBegin; 785 ierr = DMGetPointSF(dm, &sf);CHKERRQ(ierr); 786 ierr = PetscSFGetGraph(sf, &nroots, &nleaves, &locals, &remotes);CHKERRQ(ierr); 787 if (nroots < 0) PetscFunctionReturn(0); 788 ierr = PetscSFSetUp(sf);CHKERRQ(ierr); 789 ierr = PetscSFGetRanks(sf, &nranks, &ranks, &roffset, NULL, NULL);CHKERRQ(ierr); 790 #if defined(PETSC_USE_DEBUG) 791 ierr = DMViewFromOptions(dm, NULL, "-before_fix_dm_view");CHKERRQ(ierr); 792 ierr = DMPlexCheckPointSF(dm);CHKERRQ(ierr); 793 #endif 794 ierr = SortRmineRremoteByRemote_Private(sf, &rmine1, &rremote1);CHKERRQ(ierr); 795 ierr = PetscMalloc4(nroots, &roots, nroots, &leaves, nroots, &rootsRanks, nroots, &leavesRanks);CHKERRQ(ierr); 796 ierr = PetscObjectGetComm((PetscObject) dm, &comm);CHKERRQ(ierr); 797 ierr = MPI_Comm_rank(comm, &rank);CHKERRQ(ierr); 798 if (debug && rank == 0) {ierr = PetscSynchronizedPrintf(comm, "Roots\n");CHKERRQ(ierr);} 799 for (p = 0; p < nroots; ++p) { 800 ierr = DMPlexGetConeSize(dm, p, &coneSize);CHKERRQ(ierr); 801 ierr = DMPlexGetCone(dm, p, &cone);CHKERRQ(ierr); 802 /* Translate all points to root numbering */ 803 for (c = 0; c < 2; c++) { 804 if (coneSize > 1) { 805 ierr = PetscFindInt(cone[c], nleaves, locals, &ind0);CHKERRQ(ierr); 806 if (ind0 < 0) { 807 roots[p][c] = cone[c]; 808 rootsRanks[p][c] = rank; 809 } else { 810 roots[p][c] = remotes[ind0].index; 811 rootsRanks[p][c] = remotes[ind0].rank; 812 } 813 } else { 814 roots[p][c] = -1; 815 rootsRanks[p][c] = -1; 816 } 817 } 818 } 819 if (debug) { 820 for (p = 0; p < nroots; ++p) { 821 ierr = DMPlexGetConeSize(dm, p, &coneSize);CHKERRQ(ierr); 822 ierr = DMPlexGetCone(dm, p, &cone);CHKERRQ(ierr); 823 if (coneSize > 1) { 824 ierr = PetscSynchronizedPrintf(comm, "[%d] %D: cone=[%D %D] roots=[%D %D] rootsRanks=[%D %D]\n", rank, p, cone[0], cone[1], roots[p][0], roots[p][1], rootsRanks[p][0], rootsRanks[p][1]);CHKERRQ(ierr); 825 } 826 } 827 ierr = PetscSynchronizedFlush(comm, NULL);CHKERRQ(ierr); 828 } 829 for (p = 0; p < nroots; ++p) { 830 for (c = 0; c < 2; c++) { 831 leaves[p][c] = -2; 832 leavesRanks[p][c] = -2; 833 } 834 } 835 ierr = PetscSFBcastBegin(sf, MPIU_2INT, roots, leaves);CHKERRQ(ierr); 836 ierr = PetscSFBcastBegin(sf, MPI_2INT, rootsRanks, leavesRanks);CHKERRQ(ierr); 837 ierr = PetscSFBcastEnd(sf, MPIU_2INT, roots, leaves);CHKERRQ(ierr); 838 ierr = PetscSFBcastEnd(sf, MPI_2INT, rootsRanks, leavesRanks);CHKERRQ(ierr); 839 if (debug) {ierr = PetscSynchronizedFlush(comm, NULL);CHKERRQ(ierr);} 840 if (debug && rank == 0) {ierr = PetscSynchronizedPrintf(comm, "Referred leaves\n");CHKERRQ(ierr);} 841 for (p = 0; p < nroots; ++p) { 842 if (leaves[p][0] < 0) continue; 843 ierr = DMPlexGetConeSize(dm, p, &coneSize);CHKERRQ(ierr); 844 ierr = DMPlexGetCone(dm, p, &cone);CHKERRQ(ierr); 845 if (debug) {ierr = PetscSynchronizedPrintf(comm, "[%d] %D: cone=[%D %D] leaves=[%D %D] roots=[%D %D] leavesRanks=[%D %D] rootsRanks=[%D %D]\n", rank, p, cone[0], cone[1], leaves[p][0], leaves[p][1], roots[p][0], roots[p][1], leavesRanks[p][0], leavesRanks[p][1], rootsRanks[p][0], rootsRanks[p][1]);CHKERRQ(ierr);} 846 if ((leaves[p][0] != roots[p][0]) || (leaves[p][1] != roots[p][1]) || (leavesRanks[p][0] != rootsRanks[p][0]) || (leavesRanks[p][0] != rootsRanks[p][0])) { 847 PetscInt masterCone[2]; 848 /* Translate these two cone points back to leave numbering */ 849 for (c = 0; c < 2; c++) { 850 if (leavesRanks[p][c] == rank) SETERRQ1(PETSC_COMM_SELF, PETSC_ERR_PLIB, "this should never happen - remote rank of point %D is the same rank",leavesRanks[p][c]); 851 /* Find index of rank leavesRanks[p][c] among remote ranks */ 852 /* No need for PetscMPIIntCast because these integers were originally cast from PetscMPIInt. */ 853 ierr = PetscFindMPIInt((PetscMPIInt)leavesRanks[p][c], nranks, ranks, &r);CHKERRQ(ierr); 854 if (PetscUnlikely(r < 0)) SETERRQ1(PETSC_COMM_SELF, PETSC_ERR_PLIB, "this should never happen - rank %D not found among remote ranks",leavesRanks[p][c]); 855 /* Find point leaves[p][c] among remote points aimed at rank leavesRanks[p][c] */ 856 o = roffset[r]; 857 n = roffset[r+1] - o; 858 ierr = PetscFindInt(leaves[p][c], n, &rremote1[o], &ind0);CHKERRQ(ierr); 859 if (PetscUnlikely(ind0 < 0)) SETERRQ3(PETSC_COMM_SELF, PETSC_ERR_PLIB, "No cone point of %D is connected to (%D, %D) - it seems there is missing connection in point SF!",p,ranks[r],leaves[p][c]); 860 /* Get the corresponding local point */ 861 masterCone[c] = rmine1[o+ind0];CHKERRQ(ierr); 862 } 863 if (debug) {ierr = PetscSynchronizedPrintf(comm, "[%d] %D: masterCone=[%D %D]\n", rank, p, masterCone[0], masterCone[1]);CHKERRQ(ierr);} 864 /* Vaclav's note: Here we only compare first 2 points of the cone. Full cone size would lead to stronger self-checking. */ 865 ierr = DMPlexOrientCell(dm, p, 2, masterCone);CHKERRQ(ierr); 866 } 867 } 868 #if defined(PETSC_USE_DEBUG) 869 ierr = DMViewFromOptions(dm, NULL, "-after_fix_dm_view");CHKERRQ(ierr); 870 for (r = 0; r < nleaves; ++r) { 871 p = locals[r]; 872 ierr = DMPlexGetConeSize(dm, p, &coneSize);CHKERRQ(ierr); 873 if (!coneSize) continue; 874 ierr = DMPlexGetCone(dm, p, &cone);CHKERRQ(ierr); 875 for (c = 0; c < 2; c++) { 876 ierr = PetscFindInt(cone[c], nleaves, locals, &ind0);CHKERRQ(ierr); 877 if (ind0 < 0) SETERRQ3(PETSC_COMM_SELF, PETSC_ERR_PLIB, "Point SF contains %D but is missing its cone point cone[%D] = %D!", p, c, cone[c]); 878 if (leaves[p][c] != remotes[ind0].index || leavesRanks[p][c] != remotes[ind0].rank) { 879 if (leavesRanks[p][c] == rank) { 880 PetscInt ind1; 881 ierr = PetscFindInt(leaves[p][c], nleaves, locals, &ind1);CHKERRQ(ierr); 882 if (ind1 < 0) { 883 SETERRQ8(PETSC_COMM_SELF, PETSC_ERR_PLIB, "Point %D = locals[%d]: cone[%D]=%D --> (%D, %D) differs from the enforced (%D, %D). The latter was not even found among the local SF points - it is probably broken!", p, r, c, cone[c], remotes[ind0].rank, remotes[ind0].index, leavesRanks[p][c], leaves[p][c]); 884 } else { 885 SETERRQ9(PETSC_COMM_SELF, PETSC_ERR_PLIB, "Point %D = locals[%d]: cone[%D]=%D --> (%D, %D) differs from the enforced %D --> (%D, %D). Is the algorithm above or the point SF broken?", p, r, c, cone[c], remotes[ind0].rank, remotes[ind0].index, leaves[p][c], remotes[ind1].rank, remotes[ind1].index); 886 } 887 } else { 888 SETERRQ8(PETSC_COMM_SELF, PETSC_ERR_PLIB, "Point %D = locals[%d]: cone[%D]=%D --> (%D, %D) differs from the enforced (%D, %D). Is the algorithm above or the point SF broken?", p, r, c, cone[c], remotes[ind0].rank, remotes[ind0].index, leavesRanks[p][c], leaves[p][c]); 889 } 890 } 891 } 892 } 893 #endif 894 if (debug) {ierr = PetscSynchronizedFlush(comm, NULL);CHKERRQ(ierr);} 895 ierr = PetscFree4(roots, leaves, rootsRanks, leavesRanks);CHKERRQ(ierr); 896 PetscFunctionReturn(0); 897 } 898 899 /* This interpolates the PointSF in parallel following local interpolation */ 900 static PetscErrorCode DMPlexInterpolatePointSF(DM dm, PetscSF pointSF, PetscInt depth) 901 { 902 PetscMPIInt size, rank; 903 PetscInt p, c, d, dof, offset; 904 PetscInt numLeaves, numRoots, candidatesSize, candidatesRemoteSize; 905 const PetscInt *localPoints; 906 const PetscSFNode *remotePoints; 907 PetscSFNode *candidates, *candidatesRemote, *claims; 908 PetscSection candidateSection, candidateSectionRemote, claimSection; 909 PetscHMapI leafhash; 910 PetscHMapIJ roothash; 911 PetscHashIJKey key; 912 PetscErrorCode ierr; 913 914 PetscFunctionBegin; 915 ierr = MPI_Comm_size(PetscObjectComm((PetscObject) dm), &size);CHKERRQ(ierr); 916 ierr = MPI_Comm_rank(PetscObjectComm((PetscObject) dm), &rank);CHKERRQ(ierr); 917 ierr = PetscSFGetGraph(pointSF, &numRoots, &numLeaves, &localPoints, &remotePoints);CHKERRQ(ierr); 918 if (size < 2 || numRoots < 0) PetscFunctionReturn(0); 919 ierr = PetscLogEventBegin(DMPLEX_InterpolateSF,dm,0,0,0);CHKERRQ(ierr); 920 /* Build hashes of points in the SF for efficient lookup */ 921 ierr = PetscHMapICreate(&leafhash);CHKERRQ(ierr); 922 ierr = PetscHMapIJCreate(&roothash);CHKERRQ(ierr); 923 for (p = 0; p < numLeaves; ++p) { 924 ierr = PetscHMapISet(leafhash, localPoints[p], p);CHKERRQ(ierr); 925 key.i = remotePoints[p].index; 926 key.j = remotePoints[p].rank; 927 ierr = PetscHMapIJSet(roothash, key, p);CHKERRQ(ierr); 928 } 929 /* Build a section / SFNode array of candidate points in the single-level adjacency of leaves, 930 where each candidate is defined by the root entry for the other vertex that defines the edge. */ 931 ierr = PetscSectionCreate(PetscObjectComm((PetscObject) dm), &candidateSection);CHKERRQ(ierr); 932 ierr = PetscSectionSetChart(candidateSection, 0, numRoots);CHKERRQ(ierr); 933 { 934 PetscInt leaf, root, idx, a, *adj = NULL; 935 for (p = 0; p < numLeaves; ++p) { 936 PetscInt adjSize = PETSC_DETERMINE; 937 ierr = DMPlexGetAdjacency_Internal(dm, localPoints[p], PETSC_FALSE, PETSC_FALSE, PETSC_FALSE, &adjSize, &adj);CHKERRQ(ierr); 938 for (a = 0; a < adjSize; ++a) { 939 ierr = PetscHMapIGet(leafhash, adj[a], &leaf);CHKERRQ(ierr); 940 if (leaf >= 0) {ierr = PetscSectionAddDof(candidateSection, localPoints[p], 1);CHKERRQ(ierr);} 941 } 942 } 943 ierr = PetscSectionSetUp(candidateSection);CHKERRQ(ierr); 944 ierr = PetscSectionGetStorageSize(candidateSection, &candidatesSize);CHKERRQ(ierr); 945 ierr = PetscMalloc1(candidatesSize, &candidates);CHKERRQ(ierr); 946 for (p = 0; p < numLeaves; ++p) { 947 PetscInt adjSize = PETSC_DETERMINE; 948 ierr = PetscSectionGetOffset(candidateSection, localPoints[p], &offset);CHKERRQ(ierr); 949 ierr = DMPlexGetAdjacency_Internal(dm, localPoints[p], PETSC_FALSE, PETSC_FALSE, PETSC_FALSE, &adjSize, &adj);CHKERRQ(ierr); 950 for (idx = 0, a = 0; a < adjSize; ++a) { 951 ierr = PetscHMapIGet(leafhash, adj[a], &root);CHKERRQ(ierr); 952 if (root >= 0) candidates[offset+idx++] = remotePoints[root]; 953 } 954 } 955 ierr = PetscFree(adj);CHKERRQ(ierr); 956 } 957 /* Gather candidate section / array pair into the root partition via inverse(multi(pointSF)). */ 958 { 959 PetscSF sfMulti, sfInverse, sfCandidates; 960 PetscInt *remoteOffsets; 961 ierr = PetscSFGetMultiSF(pointSF, &sfMulti);CHKERRQ(ierr); 962 ierr = PetscSFCreateInverseSF(sfMulti, &sfInverse);CHKERRQ(ierr); 963 ierr = PetscSectionCreate(PetscObjectComm((PetscObject) dm), &candidateSectionRemote);CHKERRQ(ierr); 964 ierr = PetscSFDistributeSection(sfInverse, candidateSection, &remoteOffsets, candidateSectionRemote);CHKERRQ(ierr); 965 ierr = PetscSFCreateSectionSF(sfInverse, candidateSection, remoteOffsets, candidateSectionRemote, &sfCandidates);CHKERRQ(ierr); 966 ierr = PetscSectionGetStorageSize(candidateSectionRemote, &candidatesRemoteSize);CHKERRQ(ierr); 967 ierr = PetscMalloc1(candidatesRemoteSize, &candidatesRemote);CHKERRQ(ierr); 968 ierr = PetscSFBcastBegin(sfCandidates, MPIU_2INT, candidates, candidatesRemote);CHKERRQ(ierr); 969 ierr = PetscSFBcastEnd(sfCandidates, MPIU_2INT, candidates, candidatesRemote);CHKERRQ(ierr); 970 ierr = PetscSFDestroy(&sfInverse);CHKERRQ(ierr); 971 ierr = PetscSFDestroy(&sfCandidates);CHKERRQ(ierr); 972 ierr = PetscFree(remoteOffsets);CHKERRQ(ierr); 973 } 974 /* Walk local roots and check for each remote candidate whether we know all required points, 975 either from owning it or having a root entry in the point SF. If we do we place a claim 976 by replacing the vertex number with our edge ID. */ 977 { 978 PetscInt idx, root, joinSize, vertices[2]; 979 const PetscInt *rootdegree, *join = NULL; 980 ierr = PetscSFComputeDegreeBegin(pointSF, &rootdegree);CHKERRQ(ierr); 981 ierr = PetscSFComputeDegreeEnd(pointSF, &rootdegree);CHKERRQ(ierr); 982 /* Loop remote edge connections and put in a claim if both vertices are known */ 983 for (idx = 0, p = 0; p < numRoots; ++p) { 984 for (d = 0; d < rootdegree[p]; ++d) { 985 ierr = PetscSectionGetDof(candidateSectionRemote, idx, &dof);CHKERRQ(ierr); 986 ierr = PetscSectionGetOffset(candidateSectionRemote, idx, &offset);CHKERRQ(ierr); 987 for (c = 0; c < dof; ++c) { 988 /* We own both vertices, so we claim the edge by replacing vertex with edge */ 989 if (candidatesRemote[offset+c].rank == rank) { 990 vertices[0] = p; vertices[1] = candidatesRemote[offset+c].index; 991 ierr = DMPlexGetJoin(dm, 2, vertices, &joinSize, &join);CHKERRQ(ierr); 992 if (joinSize == 1) candidatesRemote[offset+c].index = join[0]; 993 ierr = DMPlexRestoreJoin(dm, 2, vertices, &joinSize, &join);CHKERRQ(ierr); 994 continue; 995 } 996 /* If we own one vertex and share a root with the other, we claim it */ 997 key.i = candidatesRemote[offset+c].index; 998 key.j = candidatesRemote[offset+c].rank; 999 ierr = PetscHMapIJGet(roothash, key, &root);CHKERRQ(ierr); 1000 if (root >= 0) { 1001 vertices[0] = p; vertices[1] = localPoints[root]; 1002 ierr = DMPlexGetJoin(dm, 2, vertices, &joinSize, &join);CHKERRQ(ierr); 1003 if (joinSize == 1) { 1004 candidatesRemote[offset+c].index = join[0]; 1005 candidatesRemote[offset+c].rank = rank; 1006 } 1007 ierr = DMPlexRestoreJoin(dm, 2, vertices, &joinSize, &join);CHKERRQ(ierr); 1008 } 1009 } 1010 idx++; 1011 } 1012 } 1013 } 1014 /* Push claims back to receiver via the MultiSF and derive new pointSF mapping on receiver */ 1015 { 1016 PetscSF sfMulti, sfClaims, sfPointNew; 1017 PetscHMapI claimshash; 1018 PetscInt size, pStart, pEnd, root, joinSize, numLocalNew; 1019 PetscInt *remoteOffsets, *localPointsNew, vertices[2]; 1020 const PetscInt *join = NULL; 1021 PetscSFNode *remotePointsNew; 1022 ierr = PetscSFGetMultiSF(pointSF, &sfMulti);CHKERRQ(ierr); 1023 ierr = PetscSectionCreate(PetscObjectComm((PetscObject) dm), &claimSection);CHKERRQ(ierr); 1024 ierr = PetscSFDistributeSection(sfMulti, candidateSectionRemote, &remoteOffsets, claimSection);CHKERRQ(ierr); 1025 ierr = PetscSFCreateSectionSF(sfMulti, candidateSectionRemote, remoteOffsets, claimSection, &sfClaims);CHKERRQ(ierr); 1026 ierr = PetscSectionGetStorageSize(claimSection, &size);CHKERRQ(ierr); 1027 ierr = PetscMalloc1(size, &claims);CHKERRQ(ierr); 1028 ierr = PetscSFBcastBegin(sfClaims, MPIU_2INT, candidatesRemote, claims);CHKERRQ(ierr); 1029 ierr = PetscSFBcastEnd(sfClaims, MPIU_2INT, candidatesRemote, claims);CHKERRQ(ierr); 1030 ierr = PetscSFDestroy(&sfClaims);CHKERRQ(ierr); 1031 ierr = PetscFree(remoteOffsets);CHKERRQ(ierr); 1032 /* Walk the original section of local supports and add an SF entry for each updated item */ 1033 ierr = PetscHMapICreate(&claimshash);CHKERRQ(ierr); 1034 for (p = 0; p < numRoots; ++p) { 1035 ierr = PetscSectionGetDof(candidateSection, p, &dof);CHKERRQ(ierr); 1036 ierr = PetscSectionGetOffset(candidateSection, p, &offset);CHKERRQ(ierr); 1037 for (d = 0; d < dof; ++d) { 1038 if (candidates[offset+d].index != claims[offset+d].index) { 1039 key.i = candidates[offset+d].index; 1040 key.j = candidates[offset+d].rank; 1041 ierr = PetscHMapIJGet(roothash, key, &root);CHKERRQ(ierr); 1042 if (root >= 0) { 1043 vertices[0] = p; vertices[1] = localPoints[root]; 1044 ierr = DMPlexGetJoin(dm, 2, vertices, &joinSize, &join);CHKERRQ(ierr); 1045 if (joinSize == 1) {ierr = PetscHMapISet(claimshash, join[0], offset+d);CHKERRQ(ierr);} 1046 ierr = DMPlexRestoreJoin(dm, 2, vertices, &joinSize, &join);CHKERRQ(ierr); 1047 } 1048 } 1049 } 1050 } 1051 /* Create new pointSF from hashed claims */ 1052 ierr = PetscHMapIGetSize(claimshash, &numLocalNew);CHKERRQ(ierr); 1053 ierr = DMPlexGetChart(dm, &pStart, &pEnd);CHKERRQ(ierr); 1054 ierr = PetscMalloc1(numLeaves + numLocalNew, &localPointsNew);CHKERRQ(ierr); 1055 ierr = PetscMalloc1(numLeaves + numLocalNew, &remotePointsNew);CHKERRQ(ierr); 1056 for (p = 0; p < numLeaves; ++p) { 1057 localPointsNew[p] = localPoints[p]; 1058 remotePointsNew[p].index = remotePoints[p].index; 1059 remotePointsNew[p].rank = remotePoints[p].rank; 1060 } 1061 p = numLeaves; 1062 ierr = PetscHMapIGetKeys(claimshash, &p, localPointsNew);CHKERRQ(ierr); 1063 ierr = PetscSortInt(numLocalNew, &localPointsNew[numLeaves]);CHKERRQ(ierr); 1064 for (p = numLeaves; p < numLeaves + numLocalNew; ++p) { 1065 ierr = PetscHMapIGet(claimshash, localPointsNew[p], &offset);CHKERRQ(ierr); 1066 remotePointsNew[p] = claims[offset]; 1067 } 1068 ierr = PetscSFCreate(PetscObjectComm((PetscObject) dm), &sfPointNew);CHKERRQ(ierr); 1069 ierr = PetscSFSetGraph(sfPointNew, pEnd-pStart, numLeaves+numLocalNew, localPointsNew, PETSC_OWN_POINTER, remotePointsNew, PETSC_OWN_POINTER);CHKERRQ(ierr); 1070 ierr = DMSetPointSF(dm, sfPointNew);CHKERRQ(ierr); 1071 ierr = PetscSFDestroy(&sfPointNew);CHKERRQ(ierr); 1072 ierr = PetscHMapIDestroy(&claimshash);CHKERRQ(ierr); 1073 } 1074 ierr = PetscHMapIDestroy(&leafhash);CHKERRQ(ierr); 1075 ierr = PetscHMapIJDestroy(&roothash);CHKERRQ(ierr); 1076 ierr = PetscSectionDestroy(&candidateSection);CHKERRQ(ierr); 1077 ierr = PetscSectionDestroy(&candidateSectionRemote);CHKERRQ(ierr); 1078 ierr = PetscSectionDestroy(&claimSection);CHKERRQ(ierr); 1079 ierr = PetscFree(candidates);CHKERRQ(ierr); 1080 ierr = PetscFree(candidatesRemote);CHKERRQ(ierr); 1081 ierr = PetscFree(claims);CHKERRQ(ierr); 1082 ierr = PetscLogEventEnd(DMPLEX_InterpolateSF,dm,0,0,0);CHKERRQ(ierr); 1083 PetscFunctionReturn(0); 1084 } 1085 1086 /*@C 1087 DMPlexInterpolate - Take in a cell-vertex mesh and return one with all intermediate faces, edges, etc. 1088 1089 Collective on DM 1090 1091 Input Parameters: 1092 + dm - The DMPlex object with only cells and vertices 1093 - dmInt - The interpolated DM 1094 1095 Output Parameter: 1096 . dmInt - The complete DMPlex object 1097 1098 Level: intermediate 1099 1100 Notes: 1101 It does not copy over the coordinates. 1102 1103 .keywords: mesh 1104 .seealso: DMPlexUninterpolate(), DMPlexCreateFromCellList(), DMPlexCopyCoordinates() 1105 @*/ 1106 PetscErrorCode DMPlexInterpolate(DM dm, DM *dmInt) 1107 { 1108 DM idm, odm = dm; 1109 PetscSF sfPoint; 1110 PetscInt depth, dim, d; 1111 const char *name; 1112 PetscBool flg=PETSC_TRUE; 1113 PetscErrorCode ierr; 1114 1115 PetscFunctionBegin; 1116 PetscValidHeaderSpecific(dm, DM_CLASSID, 1); 1117 PetscValidPointer(dmInt, 2); 1118 ierr = PetscLogEventBegin(DMPLEX_Interpolate,dm,0,0,0);CHKERRQ(ierr); 1119 ierr = DMPlexGetDepth(dm, &depth);CHKERRQ(ierr); 1120 ierr = DMGetDimension(dm, &dim);CHKERRQ(ierr); 1121 if ((depth == dim) || (dim <= 1)) { 1122 ierr = PetscObjectReference((PetscObject) dm);CHKERRQ(ierr); 1123 idm = dm; 1124 } else { 1125 for (d = 1; d < dim; ++d) { 1126 /* Create interpolated mesh */ 1127 ierr = DMCreate(PetscObjectComm((PetscObject)dm), &idm);CHKERRQ(ierr); 1128 ierr = DMSetType(idm, DMPLEX);CHKERRQ(ierr); 1129 ierr = DMSetDimension(idm, dim);CHKERRQ(ierr); 1130 if (depth > 0) { 1131 ierr = DMPlexInterpolateFaces_Internal(odm, 1, idm);CHKERRQ(ierr); 1132 ierr = DMGetPointSF(odm, &sfPoint);CHKERRQ(ierr); 1133 ierr = DMPlexInterpolatePointSF(idm, sfPoint, depth);CHKERRQ(ierr); 1134 } 1135 if (odm != dm) {ierr = DMDestroy(&odm);CHKERRQ(ierr);} 1136 odm = idm; 1137 } 1138 ierr = PetscObjectGetName((PetscObject) dm, &name);CHKERRQ(ierr); 1139 ierr = PetscObjectSetName((PetscObject) idm, name);CHKERRQ(ierr); 1140 ierr = DMPlexCopyCoordinates(dm, idm);CHKERRQ(ierr); 1141 ierr = DMCopyLabels(dm, idm);CHKERRQ(ierr); 1142 ierr = PetscOptionsGetBool(((PetscObject)dm)->options, ((PetscObject)dm)->prefix, "-dm_plex_interpolate_orient_interfaces", &flg, NULL);CHKERRQ(ierr); 1143 if (flg) {ierr = DMPlexOrientInterface(idm);CHKERRQ(ierr);} 1144 } 1145 { 1146 PetscBool isper; 1147 const PetscReal *maxCell, *L; 1148 const DMBoundaryType *bd; 1149 1150 ierr = DMGetPeriodicity(dm,&isper,&maxCell,&L,&bd);CHKERRQ(ierr); 1151 ierr = DMSetPeriodicity(idm,isper,maxCell,L,bd);CHKERRQ(ierr); 1152 } 1153 *dmInt = idm; 1154 ierr = PetscLogEventEnd(DMPLEX_Interpolate,dm,0,0,0);CHKERRQ(ierr); 1155 PetscFunctionReturn(0); 1156 } 1157 1158 /*@ 1159 DMPlexCopyCoordinates - Copy coordinates from one mesh to another with the same vertices 1160 1161 Collective on DM 1162 1163 Input Parameter: 1164 . dmA - The DMPlex object with initial coordinates 1165 1166 Output Parameter: 1167 . dmB - The DMPlex object with copied coordinates 1168 1169 Level: intermediate 1170 1171 Note: This is typically used when adding pieces other than vertices to a mesh 1172 1173 .keywords: mesh 1174 .seealso: DMCopyLabels(), DMGetCoordinates(), DMGetCoordinatesLocal(), DMGetCoordinateDM(), DMGetCoordinateSection() 1175 @*/ 1176 PetscErrorCode DMPlexCopyCoordinates(DM dmA, DM dmB) 1177 { 1178 Vec coordinatesA, coordinatesB; 1179 VecType vtype; 1180 PetscSection coordSectionA, coordSectionB; 1181 PetscScalar *coordsA, *coordsB; 1182 PetscInt spaceDim, Nf, vStartA, vStartB, vEndA, vEndB, coordSizeB, v, d; 1183 PetscInt cStartA, cEndA, cStartB, cEndB, cS, cE; 1184 PetscBool lc = PETSC_FALSE; 1185 PetscErrorCode ierr; 1186 1187 PetscFunctionBegin; 1188 PetscValidHeaderSpecific(dmA, DM_CLASSID, 1); 1189 PetscValidHeaderSpecific(dmB, DM_CLASSID, 2); 1190 if (dmA == dmB) PetscFunctionReturn(0); 1191 ierr = DMPlexGetDepthStratum(dmA, 0, &vStartA, &vEndA);CHKERRQ(ierr); 1192 ierr = DMPlexGetDepthStratum(dmB, 0, &vStartB, &vEndB);CHKERRQ(ierr); 1193 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); 1194 ierr = DMPlexGetHeightStratum(dmA, 0, &cStartA, &cEndA);CHKERRQ(ierr); 1195 ierr = DMPlexGetHeightStratum(dmB, 0, &cStartB, &cEndB);CHKERRQ(ierr); 1196 ierr = DMGetCoordinateSection(dmA, &coordSectionA);CHKERRQ(ierr); 1197 ierr = DMGetCoordinateSection(dmB, &coordSectionB);CHKERRQ(ierr); 1198 if (coordSectionA == coordSectionB) PetscFunctionReturn(0); 1199 ierr = PetscSectionGetNumFields(coordSectionA, &Nf);CHKERRQ(ierr); 1200 if (!Nf) PetscFunctionReturn(0); 1201 if (Nf > 1) SETERRQ1(PETSC_COMM_SELF, PETSC_ERR_ARG_SIZ, "The number of coordinate fields must be 1, not %D", Nf); 1202 if (!coordSectionB) { 1203 PetscInt dim; 1204 1205 ierr = PetscSectionCreate(PetscObjectComm((PetscObject) coordSectionA), &coordSectionB);CHKERRQ(ierr); 1206 ierr = DMGetCoordinateDim(dmA, &dim);CHKERRQ(ierr); 1207 ierr = DMSetCoordinateSection(dmB, dim, coordSectionB);CHKERRQ(ierr); 1208 ierr = PetscObjectDereference((PetscObject) coordSectionB);CHKERRQ(ierr); 1209 } 1210 ierr = PetscSectionSetNumFields(coordSectionB, 1);CHKERRQ(ierr); 1211 ierr = PetscSectionGetFieldComponents(coordSectionA, 0, &spaceDim);CHKERRQ(ierr); 1212 ierr = PetscSectionSetFieldComponents(coordSectionB, 0, spaceDim);CHKERRQ(ierr); 1213 ierr = PetscSectionGetChart(coordSectionA, &cS, &cE);CHKERRQ(ierr); 1214 if (cStartA <= cS && cS < cEndA) { /* localized coordinates */ 1215 if ((cEndA-cStartA) != (cEndB-cStartB)) SETERRQ2(PETSC_COMM_SELF, PETSC_ERR_ARG_SIZ, "The number of cellls in first DM %d != %d in the second DM", cEndA-cStartA, cEndB-cStartB); 1216 cS = cS - cStartA + cStartB; 1217 cE = vEndB; 1218 lc = PETSC_TRUE; 1219 } else { 1220 cS = vStartB; 1221 cE = vEndB; 1222 } 1223 ierr = PetscSectionSetChart(coordSectionB, cS, cE);CHKERRQ(ierr); 1224 for (v = vStartB; v < vEndB; ++v) { 1225 ierr = PetscSectionSetDof(coordSectionB, v, spaceDim);CHKERRQ(ierr); 1226 ierr = PetscSectionSetFieldDof(coordSectionB, v, 0, spaceDim);CHKERRQ(ierr); 1227 } 1228 if (lc) { /* localized coordinates */ 1229 PetscInt c; 1230 1231 for (c = cS-cStartB; c < cEndB-cStartB; c++) { 1232 PetscInt dof; 1233 1234 ierr = PetscSectionGetDof(coordSectionA, c + cStartA, &dof);CHKERRQ(ierr); 1235 ierr = PetscSectionSetDof(coordSectionB, c + cStartB, dof);CHKERRQ(ierr); 1236 ierr = PetscSectionSetFieldDof(coordSectionB, c + cStartB, 0, dof);CHKERRQ(ierr); 1237 } 1238 } 1239 ierr = PetscSectionSetUp(coordSectionB);CHKERRQ(ierr); 1240 ierr = PetscSectionGetStorageSize(coordSectionB, &coordSizeB);CHKERRQ(ierr); 1241 ierr = DMGetCoordinatesLocal(dmA, &coordinatesA);CHKERRQ(ierr); 1242 ierr = VecCreate(PETSC_COMM_SELF, &coordinatesB);CHKERRQ(ierr); 1243 ierr = PetscObjectSetName((PetscObject) coordinatesB, "coordinates");CHKERRQ(ierr); 1244 ierr = VecSetSizes(coordinatesB, coordSizeB, PETSC_DETERMINE);CHKERRQ(ierr); 1245 ierr = VecGetBlockSize(coordinatesA, &d);CHKERRQ(ierr); 1246 ierr = VecSetBlockSize(coordinatesB, d);CHKERRQ(ierr); 1247 ierr = VecGetType(coordinatesA, &vtype);CHKERRQ(ierr); 1248 ierr = VecSetType(coordinatesB, vtype);CHKERRQ(ierr); 1249 ierr = VecGetArray(coordinatesA, &coordsA);CHKERRQ(ierr); 1250 ierr = VecGetArray(coordinatesB, &coordsB);CHKERRQ(ierr); 1251 for (v = 0; v < vEndB-vStartB; ++v) { 1252 PetscInt offA, offB; 1253 1254 ierr = PetscSectionGetOffset(coordSectionA, v + vStartA, &offA);CHKERRQ(ierr); 1255 ierr = PetscSectionGetOffset(coordSectionB, v + vStartB, &offB);CHKERRQ(ierr); 1256 for (d = 0; d < spaceDim; ++d) { 1257 coordsB[offB+d] = coordsA[offA+d]; 1258 } 1259 } 1260 if (lc) { /* localized coordinates */ 1261 PetscInt c; 1262 1263 for (c = cS-cStartB; c < cEndB-cStartB; c++) { 1264 PetscInt dof, offA, offB; 1265 1266 ierr = PetscSectionGetOffset(coordSectionA, c + cStartA, &offA);CHKERRQ(ierr); 1267 ierr = PetscSectionGetOffset(coordSectionB, c + cStartB, &offB);CHKERRQ(ierr); 1268 ierr = PetscSectionGetDof(coordSectionA, c + cStartA, &dof);CHKERRQ(ierr); 1269 ierr = PetscMemcpy(coordsB + offB,coordsA + offA,dof*sizeof(*coordsB));CHKERRQ(ierr); 1270 } 1271 } 1272 ierr = VecRestoreArray(coordinatesA, &coordsA);CHKERRQ(ierr); 1273 ierr = VecRestoreArray(coordinatesB, &coordsB);CHKERRQ(ierr); 1274 ierr = DMSetCoordinatesLocal(dmB, coordinatesB);CHKERRQ(ierr); 1275 ierr = VecDestroy(&coordinatesB);CHKERRQ(ierr); 1276 PetscFunctionReturn(0); 1277 } 1278 1279 /*@ 1280 DMPlexUninterpolate - Take in a mesh with all intermediate faces, edges, etc. and return a cell-vertex mesh 1281 1282 Collective on DM 1283 1284 Input Parameter: 1285 . dm - The complete DMPlex object 1286 1287 Output Parameter: 1288 . dmUnint - The DMPlex object with only cells and vertices 1289 1290 Level: intermediate 1291 1292 Notes: 1293 It does not copy over the coordinates. 1294 1295 .keywords: mesh 1296 .seealso: DMPlexInterpolate(), DMPlexCreateFromCellList(), DMPlexCopyCoordinates() 1297 @*/ 1298 PetscErrorCode DMPlexUninterpolate(DM dm, DM *dmUnint) 1299 { 1300 DM udm; 1301 PetscInt dim, vStart, vEnd, cStart, cEnd, cMax, c, maxConeSize = 0, *cone; 1302 PetscErrorCode ierr; 1303 1304 PetscFunctionBegin; 1305 PetscValidHeaderSpecific(dm, DM_CLASSID, 1); 1306 PetscValidPointer(dmUnint, 2); 1307 ierr = DMGetDimension(dm, &dim);CHKERRQ(ierr); 1308 if (dim <= 1) { 1309 ierr = PetscObjectReference((PetscObject) dm);CHKERRQ(ierr); 1310 *dmUnint = dm; 1311 PetscFunctionReturn(0); 1312 } 1313 ierr = DMPlexGetDepthStratum(dm, 0, &vStart, &vEnd);CHKERRQ(ierr); 1314 ierr = DMPlexGetHeightStratum(dm, 0, &cStart, &cEnd);CHKERRQ(ierr); 1315 ierr = DMPlexGetHybridBounds(dm, &cMax, NULL, NULL, NULL);CHKERRQ(ierr); 1316 ierr = DMCreate(PetscObjectComm((PetscObject) dm), &udm);CHKERRQ(ierr); 1317 ierr = DMSetType(udm, DMPLEX);CHKERRQ(ierr); 1318 ierr = DMSetDimension(udm, dim);CHKERRQ(ierr); 1319 ierr = DMPlexSetChart(udm, cStart, vEnd);CHKERRQ(ierr); 1320 for (c = cStart; c < cEnd; ++c) { 1321 PetscInt *closure = NULL, closureSize, cl, coneSize = 0; 1322 1323 ierr = DMPlexGetTransitiveClosure(dm, c, PETSC_TRUE, &closureSize, &closure);CHKERRQ(ierr); 1324 for (cl = 0; cl < closureSize*2; cl += 2) { 1325 const PetscInt p = closure[cl]; 1326 1327 if ((p >= vStart) && (p < vEnd)) ++coneSize; 1328 } 1329 ierr = DMPlexRestoreTransitiveClosure(dm, c, PETSC_TRUE, &closureSize, &closure);CHKERRQ(ierr); 1330 ierr = DMPlexSetConeSize(udm, c, coneSize);CHKERRQ(ierr); 1331 maxConeSize = PetscMax(maxConeSize, coneSize); 1332 } 1333 ierr = DMSetUp(udm);CHKERRQ(ierr); 1334 ierr = PetscMalloc1(maxConeSize, &cone);CHKERRQ(ierr); 1335 for (c = cStart; c < cEnd; ++c) { 1336 PetscInt *closure = NULL, closureSize, cl, coneSize = 0; 1337 1338 ierr = DMPlexGetTransitiveClosure(dm, c, PETSC_TRUE, &closureSize, &closure);CHKERRQ(ierr); 1339 for (cl = 0; cl < closureSize*2; cl += 2) { 1340 const PetscInt p = closure[cl]; 1341 1342 if ((p >= vStart) && (p < vEnd)) cone[coneSize++] = p; 1343 } 1344 ierr = DMPlexRestoreTransitiveClosure(dm, c, PETSC_TRUE, &closureSize, &closure);CHKERRQ(ierr); 1345 ierr = DMPlexSetCone(udm, c, cone);CHKERRQ(ierr); 1346 } 1347 ierr = PetscFree(cone);CHKERRQ(ierr); 1348 ierr = DMPlexSetHybridBounds(udm, cMax, PETSC_DETERMINE, PETSC_DETERMINE, PETSC_DETERMINE);CHKERRQ(ierr); 1349 ierr = DMPlexSymmetrize(udm);CHKERRQ(ierr); 1350 ierr = DMPlexStratify(udm);CHKERRQ(ierr); 1351 /* Reduce SF */ 1352 { 1353 PetscSF sfPoint, sfPointUn; 1354 const PetscSFNode *remotePoints; 1355 const PetscInt *localPoints; 1356 PetscSFNode *remotePointsUn; 1357 PetscInt *localPointsUn; 1358 PetscInt vEnd, numRoots, numLeaves, l; 1359 PetscInt numLeavesUn = 0, n = 0; 1360 PetscErrorCode ierr; 1361 1362 /* Get original SF information */ 1363 ierr = DMGetPointSF(dm, &sfPoint);CHKERRQ(ierr); 1364 ierr = DMGetPointSF(udm, &sfPointUn);CHKERRQ(ierr); 1365 ierr = DMPlexGetDepthStratum(dm, 0, NULL, &vEnd);CHKERRQ(ierr); 1366 ierr = PetscSFGetGraph(sfPoint, &numRoots, &numLeaves, &localPoints, &remotePoints);CHKERRQ(ierr); 1367 /* Allocate space for cells and vertices */ 1368 for (l = 0; l < numLeaves; ++l) if (localPoints[l] < vEnd) numLeavesUn++; 1369 /* Fill in leaves */ 1370 if (vEnd >= 0) { 1371 ierr = PetscMalloc1(numLeavesUn, &remotePointsUn);CHKERRQ(ierr); 1372 ierr = PetscMalloc1(numLeavesUn, &localPointsUn);CHKERRQ(ierr); 1373 for (l = 0; l < numLeaves; l++) { 1374 if (localPoints[l] < vEnd) { 1375 localPointsUn[n] = localPoints[l]; 1376 remotePointsUn[n].rank = remotePoints[l].rank; 1377 remotePointsUn[n].index = remotePoints[l].index; 1378 ++n; 1379 } 1380 } 1381 if (n != numLeavesUn) SETERRQ2(PETSC_COMM_SELF, PETSC_ERR_PLIB, "Inconsistent number of leaves %d != %d", n, numLeavesUn); 1382 ierr = PetscSFSetGraph(sfPointUn, vEnd, numLeavesUn, localPointsUn, PETSC_OWN_POINTER, remotePointsUn, PETSC_OWN_POINTER);CHKERRQ(ierr); 1383 } 1384 } 1385 { 1386 PetscBool isper; 1387 const PetscReal *maxCell, *L; 1388 const DMBoundaryType *bd; 1389 1390 ierr = DMGetPeriodicity(dm,&isper,&maxCell,&L,&bd);CHKERRQ(ierr); 1391 ierr = DMSetPeriodicity(udm,isper,maxCell,L,bd);CHKERRQ(ierr); 1392 } 1393 1394 *dmUnint = udm; 1395 PetscFunctionReturn(0); 1396 } 1397