1 #include <petsc-private/daimpl.h> /*I "petscdmda.h" I*/ 2 3 #undef __FUNCT__ 4 #define __FUNCT__ "FillClosureArray_Private" 5 PETSC_STATIC_INLINE PetscErrorCode FillClosureArray_Private(DM dm, PetscSection section, PetscInt nP, const PetscInt points[], PetscScalar *vArray, const PetscScalar **array) 6 { 7 PetscScalar *a; 8 PetscInt size = 0, dof, off, d, k, i; 9 PetscErrorCode ierr; 10 11 PetscFunctionBegin; 12 for (i = 0; i < nP; ++i) { 13 ierr = PetscSectionGetDof(section, points[i], &dof);CHKERRQ(ierr); 14 size += dof; 15 } 16 ierr = DMGetWorkArray(dm, size, PETSC_SCALAR, &a);CHKERRQ(ierr); 17 for (i = 0, k = 0; i < nP; ++i) { 18 ierr = PetscSectionGetDof(section, points[i], &dof);CHKERRQ(ierr); 19 ierr = PetscSectionGetOffset(section, points[i], &off);CHKERRQ(ierr); 20 21 for (d = 0; d < dof; ++d, ++k) { 22 a[k] = vArray[off+d]; 23 } 24 } 25 *array = a; 26 PetscFunctionReturn(0); 27 } 28 29 #undef __FUNCT__ 30 #define __FUNCT__ "FillClosureVec_Private" 31 PETSC_STATIC_INLINE PetscErrorCode FillClosureVec_Private(DM dm, PetscSection section, PetscInt nP, const PetscInt points[], PetscScalar *vArray, const PetscScalar *array, InsertMode mode) 32 { 33 PetscInt dof, off, d, k, i; 34 PetscErrorCode ierr; 35 36 PetscFunctionBegin; 37 if ((mode == INSERT_VALUES) || (mode == INSERT_ALL_VALUES)) { 38 for (i = 0, k = 0; i < nP; ++i) { 39 ierr = PetscSectionGetDof(section, points[i], &dof);CHKERRQ(ierr); 40 ierr = PetscSectionGetOffset(section, points[i], &off);CHKERRQ(ierr); 41 42 for (d = 0; d < dof; ++d, ++k) { 43 vArray[off+d] = array[k]; 44 } 45 } 46 } else { 47 for (i = 0, k = 0; i < nP; ++i) { 48 ierr = PetscSectionGetDof(section, points[i], &dof);CHKERRQ(ierr); 49 ierr = PetscSectionGetOffset(section, points[i], &off);CHKERRQ(ierr); 50 51 for (d = 0; d < dof; ++d, ++k) { 52 vArray[off+d] += array[k]; 53 } 54 } 55 } 56 PetscFunctionReturn(0); 57 } 58 59 #undef __FUNCT__ 60 #define __FUNCT__ "GetPointArray_Private" 61 PETSC_STATIC_INLINE PetscErrorCode GetPointArray_Private(DM dm,PetscInt n,PetscInt *points,PetscInt *rn,const PetscInt **rpoints) 62 { 63 PetscErrorCode ierr; 64 PetscInt *work; 65 66 PetscFunctionBegin; 67 if (rn) *rn = n; 68 if (rpoints) { 69 ierr = DMGetWorkArray(dm,n,PETSC_INT,&work);CHKERRQ(ierr); 70 ierr = PetscMemcpy(work,points,n*sizeof(PetscInt));CHKERRQ(ierr); 71 *rpoints = work; 72 } 73 PetscFunctionReturn(0); 74 } 75 76 #undef __FUNCT__ 77 #define __FUNCT__ "RestorePointArray_Private" 78 PETSC_STATIC_INLINE PetscErrorCode RestorePointArray_Private(DM dm,PetscInt *rn,const PetscInt **rpoints) 79 { 80 PetscErrorCode ierr; 81 82 PetscFunctionBegin; 83 if (rn) *rn = 0; 84 if (rpoints) {ierr = DMRestoreWorkArray(dm,*rn,PETSC_INT,rpoints);CHKERRQ(ierr);} 85 PetscFunctionReturn(0); 86 } 87 88 #undef __FUNCT__ 89 #define __FUNCT__ "DMDAGetClosure" 90 PetscErrorCode DMDAGetClosure(DM dm, PetscSection section, PetscInt p,PetscInt *n,const PetscInt **closure) 91 { 92 DM_DA *da = (DM_DA *) dm->data; 93 PetscInt dim = da->dim; 94 PetscInt nVx, nVy, nxF, nXF, nyF, nYF, nzF, nZF; 95 PetscInt pStart, pEnd, cStart, cEnd, vStart, vEnd, fStart, fEnd, xfStart, xfEnd, yfStart; 96 PetscErrorCode ierr; 97 98 PetscFunctionBegin; 99 PetscValidHeaderSpecific(dm, DM_CLASSID, 1); 100 if (n) PetscValidIntPointer(n,4); 101 if (closure) PetscValidPointer(closure, 5); 102 if (!section) {ierr = DMGetDefaultSection(dm, §ion);CHKERRQ(ierr);} 103 if (!section) SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_ARG_WRONG, "This DM has not default PetscSection"); 104 ierr = DMDAGetHeightStratum(dm, -1, &pStart, &pEnd);CHKERRQ(ierr); 105 ierr = DMDAGetHeightStratum(dm, 0, &cStart, &cEnd);CHKERRQ(ierr); 106 ierr = DMDAGetHeightStratum(dm, 1, &fStart, &fEnd);CHKERRQ(ierr); 107 ierr = DMDAGetHeightStratum(dm, dim, &vStart, &vEnd);CHKERRQ(ierr); 108 ierr = DMDAGetNumVertices(dm, &nVx, &nVy, PETSC_NULL, PETSC_NULL);CHKERRQ(ierr); 109 ierr = DMDAGetNumFaces(dm, &nxF, &nXF, &nyF, &nYF, &nzF, &nZF);CHKERRQ(ierr); 110 xfStart = fStart; xfEnd = xfStart+nXF; 111 yfStart = xfEnd; 112 if ((p < pStart) || (p >= pEnd)) SETERRQ3(((PetscObject) dm)->comm, PETSC_ERR_ARG_OUTOFRANGE, "Invalid point %d should be in [%d, %d)", p, pStart, pEnd); 113 if ((p >= cStart) || (p < cEnd)) { 114 /* Cell */ 115 if (dim == 1) { 116 SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_SUP, "Not implemented"); 117 } else if (dim == 2) { 118 /* 4 faces, 4 vertices 119 Bottom-left vertex follows same order as cells 120 Bottom y-face same order as cells 121 Left x-face follows same order as cells 122 We number the quad: 123 124 8--3--7 125 | | 126 4 0 2 127 | | 128 5--1--6 129 */ 130 PetscInt c = p - cStart, cx = c % (nVx-1), cy = c / (nVx-1); 131 PetscInt v = cy*nVx + cx + vStart; 132 PetscInt xf = cy*nxF + cx + xfStart; 133 PetscInt yf = c + yfStart; 134 PetscInt points[9] = {p, yf, xf+1, yf+nyF, xf+0, v+0, v+1, v+nVx+1, v+nVx+0}; 135 136 ierr = GetPointArray_Private(dm,9,points,n,closure);CHKERRQ(ierr); 137 } else { 138 SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_SUP, "Not implemented"); 139 } 140 } else if ((p >= vStart) || (p < vEnd)) { 141 /* Vertex */ 142 ierr = GetPointArray_Private(dm,1,&p,n,closure);CHKERRQ(ierr); 143 } else if ((p >= fStart) || (p < fStart + nXF)) { 144 /* X Face */ 145 if (dim == 1) { 146 SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_PLIB, "There are no faces in 1D"); 147 } else if (dim == 2) { 148 /* 2 vertices: The bottom vertex has the same numbering as the face */ 149 PetscInt f = p - xfStart; 150 PetscInt points[3] = {p, f, f+nVx}; 151 152 SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_SUP, "Broken"); 153 ierr = GetPointArray_Private(dm,3,points,n,closure);CHKERRQ(ierr); 154 } else if (dim == 3) { 155 /* 4 vertices */ 156 SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_SUP, "Not implemented"); 157 } 158 } else if ((p >= fStart + nXF) || (p < fStart + nXF + nYF)) { 159 /* Y Face */ 160 if (dim == 1) { 161 SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_PLIB, "There are no faces in 1D"); 162 } else if (dim == 2) { 163 /* 2 vertices: The left vertex has the same numbering as the face */ 164 PetscInt f = p - yfStart; 165 PetscInt points[3] = {p, f, f+1}; 166 167 SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_SUP, "Broken"); 168 ierr = GetPointArray_Private(dm, 3, points, n, closure);CHKERRQ(ierr); 169 } else if (dim == 3) { 170 /* 4 vertices */ 171 SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_SUP, "Not implemented"); 172 } 173 } else { 174 /* Z Face */ 175 if (dim == 1) { 176 SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_PLIB, "There are no faces in 1D"); 177 } else if (dim == 2) { 178 SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_PLIB, "There are no z-faces in 2D"); 179 } else if (dim == 3) { 180 /* 4 vertices */ 181 SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_SUP, "Not implemented"); 182 } 183 } 184 PetscFunctionReturn(0); 185 } 186 187 #undef __FUNCT__ 188 #define __FUNCT__ "DMDARestoreClosure" 189 PetscErrorCode DMDARestoreClosure(DM dm, PetscSection section, PetscInt p,PetscInt *n,const PetscInt **closure) 190 { 191 PetscErrorCode ierr; 192 193 PetscFunctionBegin; 194 PetscValidHeaderSpecific(dm, DM_CLASSID, 1); 195 PetscValidIntPointer(n,4); 196 PetscValidPointer(closure, 5); 197 ierr = RestorePointArray_Private(dm,n,closure);CHKERRQ(ierr); 198 PetscFunctionReturn(0); 199 } 200 201 #undef __FUNCT__ 202 #define __FUNCT__ "DMDAGetClosureScalar" 203 /* If you did not pass PETSC_NULL for 'values', you must call DMDARestoreClosureScalar() */ 204 PetscErrorCode DMDAGetClosureScalar(DM dm, PetscSection section,PetscInt p,PetscScalar *vArray,const PetscScalar **values) 205 { 206 DM_DA *da = (DM_DA *) dm->data; 207 PetscInt dim = da->dim; 208 PetscInt nVx, nVy, nxF, nXF, nyF, nYF, nzF, nZF; 209 PetscInt pStart, pEnd, cStart, cEnd, vStart, vEnd, fStart, fEnd, xfStart, xfEnd, yfStart, yfEnd, zfStart; 210 PetscErrorCode ierr; 211 212 PetscFunctionBegin; 213 PetscValidHeaderSpecific(dm, DM_CLASSID, 1); 214 PetscValidScalarPointer(vArray, 4); 215 PetscValidPointer(values, 5); 216 if (!section) {ierr = DMGetDefaultSection(dm, §ion);CHKERRQ(ierr);} 217 if (!section) SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_ARG_WRONG, "This DM has not default PetscSection"); 218 ierr = DMDAGetHeightStratum(dm, -1, &pStart, &pEnd);CHKERRQ(ierr); 219 ierr = DMDAGetHeightStratum(dm, 0, &cStart, &cEnd);CHKERRQ(ierr); 220 ierr = DMDAGetHeightStratum(dm, 1, &fStart, &fEnd);CHKERRQ(ierr); 221 ierr = DMDAGetHeightStratum(dm, dim, &vStart, &vEnd);CHKERRQ(ierr); 222 ierr = DMDAGetNumVertices(dm, &nVx, &nVy, PETSC_NULL, PETSC_NULL);CHKERRQ(ierr); 223 ierr = DMDAGetNumFaces(dm, &nxF, &nXF, &nyF, &nYF, &nzF, &nZF);CHKERRQ(ierr); 224 xfStart = fStart; xfEnd = xfStart+nXF; 225 yfStart = xfEnd; yfEnd = yfStart+nYF; 226 zfStart = yfEnd; 227 if ((p < pStart) || (p >= pEnd)) SETERRQ3(((PetscObject) dm)->comm, PETSC_ERR_ARG_OUTOFRANGE, "Invalid point %d should be in [%d, %d)", p, pStart, pEnd); 228 if ((p >= cStart) || (p < cEnd)) { 229 /* Cell */ 230 if (dim == 1) { 231 SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_SUP, "Not implemented"); 232 } else if (dim == 2) { 233 /* 4 faces, 4 vertices 234 Bottom-left vertex follows same order as cells 235 Bottom y-face same order as cells 236 Left x-face follows same order as cells 237 We number the quad: 238 239 8--3--7 240 | | 241 4 0 2 242 | | 243 5--1--6 244 */ 245 PetscInt c = p - cStart, cx = c % (nVx-1), cy = c / (nVx-1); 246 PetscInt v = cy*nVx + cx + vStart; 247 PetscInt xf = cy*nxF + cx + xfStart; 248 PetscInt yf = c + yfStart; 249 PetscInt points[9] = {p, yf, xf+1, yf+nyF, xf+0, v+0, v+1, v+nVx+1, v+nVx+0}; 250 251 ierr = FillClosureArray_Private(dm, section, 9, points, vArray, values);CHKERRQ(ierr); 252 } else { 253 /* 6 faces, 8 vertices 254 Bottom-left-back vertex follows same order as cells 255 Back z-face follows same order as cells 256 Bottom y-face follows same order as cells 257 Left x-face follows same order as cells 258 259 14-----13 260 /| /| 261 / | 2 / | 262 / 5| / | 263 10-----9 4| 264 | 11-|---12 265 |6 / | / 266 | /1 3| / 267 |/ |/ 268 7-----8 269 */ 270 PetscInt c = p - cStart; 271 PetscInt points[15] = {p, c+zfStart, c+zfStart+nzF, c+yfStart, c+xfStart+nxF, c+yfStart+nyF, c+xfStart, 272 c+vStart+0, c+vStart+1, c+vStart+nVx+1, c+vStart+nVx+0, c+vStart+nVx*nVy+0, c+vStart+nVx*nVy+1, c+vStart+nVx*nVy+nVx+1, c+vStart+nVx*nVy+nVx+0}; 273 274 SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_SUP, "Broken"); 275 ierr = FillClosureArray_Private(dm, section, 15, points, vArray, values);CHKERRQ(ierr); 276 } 277 } else if ((p >= vStart) || (p < vEnd)) { 278 /* Vertex */ 279 ierr = FillClosureArray_Private(dm, section, 1, &p, vArray, values);CHKERRQ(ierr); 280 } else if ((p >= fStart) || (p < fStart + nXF)) { 281 /* X Face */ 282 if (dim == 1) { 283 SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_PLIB, "There are no faces in 1D"); 284 } else if (dim == 2) { 285 /* 2 vertices: The bottom vertex has the same numbering as the face */ 286 PetscInt f = p - xfStart; 287 PetscInt points[3] = {p, f, f+nVx}; 288 289 SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_SUP, "Broken"); 290 ierr = FillClosureArray_Private(dm, section, 3, points, vArray, values);CHKERRQ(ierr); 291 } else if (dim == 3) { 292 /* 4 vertices */ 293 SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_SUP, "Not implemented"); 294 } 295 } else if ((p >= fStart + nXF) || (p < fStart + nXF + nYF)) { 296 /* Y Face */ 297 if (dim == 1) { 298 SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_PLIB, "There are no faces in 1D"); 299 } else if (dim == 2) { 300 /* 2 vertices: The left vertex has the same numbering as the face */ 301 PetscInt f = p - yfStart; 302 PetscInt points[3] = {p, f, f+1}; 303 304 SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_SUP, "Broken"); 305 ierr = FillClosureArray_Private(dm, section, 3, points, vArray, values);CHKERRQ(ierr); 306 } else if (dim == 3) { 307 /* 4 vertices */ 308 SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_SUP, "Not implemented"); 309 } 310 } else { 311 /* Z Face */ 312 if (dim == 1) { 313 SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_PLIB, "There are no faces in 1D"); 314 } else if (dim == 2) { 315 SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_PLIB, "There are no z-faces in 2D"); 316 } else if (dim == 3) { 317 /* 4 vertices */ 318 SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_SUP, "Not implemented"); 319 } 320 } 321 PetscFunctionReturn(0); 322 } 323 324 #undef __FUNCT__ 325 #define __FUNCT__ "DMDAVecGetClosure" 326 PetscErrorCode DMDAVecGetClosure(DM dm, PetscSection section, Vec v, PetscInt p, const PetscScalar **values) 327 { 328 PetscScalar *vArray; 329 PetscErrorCode ierr; 330 331 PetscFunctionBegin; 332 PetscValidHeaderSpecific(dm, DM_CLASSID, 1); 333 PetscValidHeaderSpecific(v, VEC_CLASSID, 3); 334 PetscValidPointer(values, 5); 335 ierr = VecGetArray(v,&vArray);CHKERRQ(ierr); 336 ierr = DMDAGetClosureScalar(dm,section,p,vArray,values);CHKERRQ(ierr); 337 ierr = VecRestoreArray(v,&vArray);CHKERRQ(ierr); 338 PetscFunctionReturn(0); 339 } 340 341 #undef __FUNCT__ 342 #define __FUNCT__ "DMDARestoreClosureScalar" 343 PetscErrorCode DMDARestoreClosureScalar(DM dm, PetscSection section,PetscInt p,PetscScalar *vArray,const PetscScalar **values) 344 { 345 PetscErrorCode ierr; 346 PetscInt count; 347 348 PetscFunctionBegin; 349 PetscValidHeaderSpecific(dm, DM_CLASSID, 1); 350 PetscValidPointer(values, 5); 351 count = 0; /* We are lying about the count */ 352 ierr = DMRestoreWorkArray(dm,count,PETSC_SCALAR,values);CHKERRQ(ierr); 353 PetscFunctionReturn(0); 354 } 355 356 #undef __FUNCT__ 357 #define __FUNCT__ "DMDAVecRestoreClosure" 358 PetscErrorCode DMDAVecRestoreClosure(DM dm, PetscSection section, Vec v, PetscInt p, const PetscScalar **values) 359 { 360 PetscErrorCode ierr; 361 362 PetscFunctionBegin; 363 PetscValidHeaderSpecific(dm, DM_CLASSID, 1); 364 PetscValidHeaderSpecific(v, VEC_CLASSID, 3); 365 PetscValidPointer(values, 5); 366 ierr = DMDARestoreClosureScalar(dm,section,p,PETSC_NULL,values);CHKERRQ(ierr); 367 PetscFunctionReturn(0); 368 } 369 370 #undef __FUNCT__ 371 #define __FUNCT__ "DMDASetClosureScalar" 372 PetscErrorCode DMDASetClosureScalar(DM dm, PetscSection section, PetscInt p,PetscScalar *vArray, const PetscScalar *values, InsertMode mode) 373 { 374 DM_DA *da = (DM_DA *) dm->data; 375 PetscInt dim = da->dim; 376 PetscInt nVx, nVy, nxF, nXF, nyF, nYF, nzF, nZF; 377 PetscInt pStart, pEnd, cStart, cEnd, vStart, vEnd, fStart, fEnd, xfStart, xfEnd, yfStart, yfEnd, zfStart; 378 PetscErrorCode ierr; 379 380 PetscFunctionBegin; 381 PetscValidHeaderSpecific(dm, DM_CLASSID, 1); 382 PetscValidScalarPointer(values, 4); 383 PetscValidPointer(values, 5); 384 if (!section) {ierr = DMGetDefaultSection(dm, §ion);CHKERRQ(ierr);} 385 if (!section) SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_ARG_WRONG, "This DM has not default PetscSection"); 386 ierr = DMDAGetHeightStratum(dm, -1, &pStart, &pEnd);CHKERRQ(ierr); 387 ierr = DMDAGetHeightStratum(dm, 0, &cStart, &cEnd);CHKERRQ(ierr); 388 ierr = DMDAGetHeightStratum(dm, 1, &fStart, &fEnd);CHKERRQ(ierr); 389 ierr = DMDAGetHeightStratum(dm, dim, &vStart, &vEnd);CHKERRQ(ierr); 390 ierr = DMDAGetNumVertices(dm, &nVx, &nVy, PETSC_NULL, PETSC_NULL);CHKERRQ(ierr); 391 ierr = DMDAGetNumFaces(dm, &nxF, &nXF, &nyF, &nYF, &nzF, &nZF);CHKERRQ(ierr); 392 xfStart = fStart; xfEnd = xfStart+nXF; 393 yfStart = xfEnd; yfEnd = yfStart+nYF; 394 zfStart = yfEnd; 395 if ((p < pStart) || (p >= pEnd)) SETERRQ3(((PetscObject) dm)->comm, PETSC_ERR_ARG_OUTOFRANGE, "Invalid point %d should be in [%d, %d)", p, pStart, pEnd); 396 if ((p >= cStart) || (p < cEnd)) { 397 /* Cell */ 398 if (dim == 1) { 399 SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_SUP, "Not implemented"); 400 } else if (dim == 2) { 401 /* 4 faces, 4 vertices 402 Bottom-left vertex follows same order as cells 403 Bottom y-face same order as cells 404 Left x-face follows same order as cells 405 We number the quad: 406 407 8--3--7 408 | | 409 4 0 2 410 | | 411 5--1--6 412 */ 413 PetscInt c = p - cStart; 414 PetscInt points[9] = {p, c+yfStart, c+xfStart+1, c+yfStart+nyF, c+xfStart+0, c+vStart+0, c+vStart+1, c+vStart+nVx+1, c+vStart+nVx+0}; 415 416 ierr = FillClosureVec_Private(dm, section, 9, points, vArray, values, mode);CHKERRQ(ierr); 417 } else { 418 /* 6 faces, 8 vertices 419 Bottom-left-back vertex follows same order as cells 420 Back z-face follows same order as cells 421 Bottom y-face follows same order as cells 422 Left x-face follows same order as cells 423 424 14-----13 425 /| /| 426 / | 2 / | 427 / 5| / | 428 10-----9 4| 429 | 11-|---12 430 |6 / | / 431 | /1 3| / 432 |/ |/ 433 7-----8 434 */ 435 PetscInt c = p - cStart; 436 PetscInt points[15] = {p, c+zfStart, c+zfStart+nzF, c+yfStart, c+xfStart+nxF, c+yfStart+nyF, c+xfStart, 437 c+vStart+0, c+vStart+1, c+vStart+nVx+1, c+vStart+nVx+0, c+vStart+nVx*nVy+0, c+vStart+nVx*nVy+1, c+vStart+nVx*nVy+nVx+1, c+vStart+nVx*nVy+nVx+0}; 438 439 ierr = FillClosureVec_Private(dm, section, 15, points, vArray, values, mode);CHKERRQ(ierr); 440 } 441 } else if ((p >= vStart) || (p < vEnd)) { 442 /* Vertex */ 443 ierr = FillClosureVec_Private(dm, section, 1, &p, vArray, values, mode);CHKERRQ(ierr); 444 } else if ((p >= fStart) || (p < fStart + nXF)) { 445 /* X Face */ 446 if (dim == 1) { 447 SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_PLIB, "There are no faces in 1D"); 448 } else if (dim == 2) { 449 /* 2 vertices: The bottom vertex has the same numbering as the face */ 450 PetscInt f = p - xfStart; 451 PetscInt points[3] = {p, f, f+nVx}; 452 453 ierr = FillClosureVec_Private(dm, section, 3, points, vArray, values, mode);CHKERRQ(ierr); 454 } else if (dim == 3) { 455 /* 4 vertices */ 456 SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_SUP, "Not implemented"); 457 } 458 } else if ((p >= fStart + nXF) || (p < fStart + nXF + nYF)) { 459 /* Y Face */ 460 if (dim == 1) { 461 SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_PLIB, "There are no faces in 1D"); 462 } else if (dim == 2) { 463 /* 2 vertices: The left vertex has the same numbering as the face */ 464 PetscInt f = p - yfStart; 465 PetscInt points[3] = {p, f, f+1}; 466 467 ierr = FillClosureVec_Private(dm, section, 3, points, vArray, values, mode);CHKERRQ(ierr); 468 } else if (dim == 3) { 469 /* 4 vertices */ 470 SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_SUP, "Not implemented"); 471 } 472 } else { 473 /* Z Face */ 474 if (dim == 1) { 475 SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_PLIB, "There are no faces in 1D"); 476 } else if (dim == 2) { 477 SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_PLIB, "There are no z-faces in 2D"); 478 } else if (dim == 3) { 479 /* 4 vertices */ 480 SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_SUP, "Not implemented"); 481 } 482 } 483 PetscFunctionReturn(0); 484 } 485 486 #undef __FUNCT__ 487 #define __FUNCT__ "DMDAVecSetClosure" 488 PetscErrorCode DMDAVecSetClosure(DM dm, PetscSection section, Vec v, PetscInt p, const PetscScalar *values, InsertMode mode) 489 { 490 PetscScalar *vArray; 491 PetscErrorCode ierr; 492 493 PetscFunctionBegin; 494 PetscValidHeaderSpecific(dm, DM_CLASSID, 1); 495 PetscValidHeaderSpecific(v, VEC_CLASSID, 3); 496 PetscValidPointer(values, 5); 497 ierr = VecGetArray(v,&vArray);CHKERRQ(ierr); 498 ierr = DMDASetClosureScalar(dm,section,p,vArray,values,mode);CHKERRQ(ierr); 499 ierr = VecRestoreArray(v,&vArray);CHKERRQ(ierr); 500 PetscFunctionReturn(0); 501 } 502 503 #undef __FUNCT__ 504 #define __FUNCT__ "DMDACnvertToCell" 505 /*@ 506 DMDAConvertToCell - Convert (i,j,k) to local cell number 507 508 Not Collective 509 510 Input Parameter: 511 + da - the distributed array 512 = s - A MatStencil giving (i,j,k) 513 514 Output Parameter: 515 . cell - the local cell number 516 517 Level: developer 518 519 .seealso: DMDAVecGetClosure() 520 @*/ 521 PetscErrorCode DMDAConvertToCell(DM dm, MatStencil s, PetscInt *cell) 522 { 523 DM_DA *da = (DM_DA *) dm->data; 524 const PetscInt dim = da->dim; 525 const PetscInt mx = (da->Xe - da->Xs)/da->w, my = da->Ye - da->Ys/*, mz = da->Ze - da->Zs*/; 526 const PetscInt il = s.i - da->Xs/da->w, jl = dim > 1 ? s.j - da->Ys : 0, kl = dim > 2 ? s.k - da->Zs : 0; 527 528 PetscFunctionBegin; 529 *cell = -1; 530 if ((s.i < da->Xs/da->w) || (s.i >= da->Xe/da->w)) SETERRQ3(((PetscObject) dm)->comm, PETSC_ERR_ARG_OUTOFRANGE, "Stencil i %d should be in [%d, %d)", s.i, da->Xs/da->w, da->Xe/da->w); 531 if ((dim > 1) && ((s.j < da->Ys) || (s.j >= da->Ye))) SETERRQ3(((PetscObject) dm)->comm, PETSC_ERR_ARG_OUTOFRANGE, "Stencil j %d should be in [%d, %d)", s.j, da->Ys, da->Ye); 532 if ((dim > 2) && ((s.k < da->Zs) || (s.k >= da->Ze))) SETERRQ3(((PetscObject) dm)->comm, PETSC_ERR_ARG_OUTOFRANGE, "Stencil k %d should be in [%d, %d)", s.k, da->Zs, da->Ze); 533 *cell = (kl*my + jl)*mx + il; 534 PetscFunctionReturn(0); 535 } 536 537 #undef __FUNCT__ 538 #define __FUNCT__ "DMDAComputeCellGeometry_2D" 539 PetscErrorCode DMDAComputeCellGeometry_2D(DM dm, const PetscScalar vertices[], const PetscReal refPoint[], PetscReal J[], PetscReal invJ[], PetscReal *detJ) 540 { 541 const PetscScalar x0 = vertices[0]; 542 const PetscScalar y0 = vertices[1]; 543 const PetscScalar x1 = vertices[2]; 544 const PetscScalar y1 = vertices[3]; 545 const PetscScalar x2 = vertices[4]; 546 const PetscScalar y2 = vertices[5]; 547 const PetscScalar x3 = vertices[6]; 548 const PetscScalar y3 = vertices[7]; 549 const PetscScalar f_01 = x2 - x1 - x3 + x0; 550 const PetscScalar g_01 = y2 - y1 - y3 + y0; 551 const PetscScalar x = refPoint[0]; 552 const PetscScalar y = refPoint[1]; 553 PetscReal invDet; 554 PetscErrorCode ierr; 555 556 PetscFunctionBegin; 557 #if defined(PETSC_USE_DEBUG) 558 ierr = PetscPrintf(PETSC_COMM_SELF, "Cell (%g,%g)--(%g,%g)--(%g,%g)--(%g,%g)\n", 559 PetscRealPart(x0),PetscRealPart(y0),PetscRealPart(x1),PetscRealPart(y1),PetscRealPart(x2),PetscRealPart(y2),PetscRealPart(x3),PetscRealPart(y3));CHKERRQ(ierr); 560 ierr = PetscPrintf(PETSC_COMM_SELF, "Ref Point (%g,%g)\n", PetscRealPart(x), PetscRealPart(y));CHKERRQ(ierr); 561 #endif 562 J[0] = PetscRealPart(x1 - x0 + f_01*y) * 0.5; J[1] = PetscRealPart(x3 - x0 + f_01*x) * 0.5; 563 J[2] = PetscRealPart(y1 - y0 + g_01*y) * 0.5; J[3] = PetscRealPart(y3 - y0 + g_01*x) * 0.5; 564 *detJ = J[0]*J[3] - J[1]*J[2]; 565 invDet = 1.0/(*detJ); 566 invJ[0] = invDet*J[3]; invJ[1] = -invDet*J[1]; 567 invJ[2] = -invDet*J[2]; invJ[3] = invDet*J[0]; 568 ierr = PetscLogFlops(30);CHKERRQ(ierr); 569 PetscFunctionReturn(0); 570 } 571 572 #undef __FUNCT__ 573 #define __FUNCT__ "DMDAComputeCellGeometry" 574 PetscErrorCode DMDAComputeCellGeometry(DM dm, PetscInt cell, PetscQuadrature *quad, PetscReal v0[], PetscReal J[], PetscReal invJ[], PetscReal detJ[]) 575 { 576 DM cdm; 577 Vec coordinates; 578 const PetscScalar *vertices; 579 PetscInt dim, d, q; 580 PetscErrorCode ierr; 581 582 PetscFunctionBegin; 583 PetscValidHeaderSpecific(dm, DM_CLASSID, 1); 584 ierr = DMDAGetInfo(dm, &dim, 0,0,0,0,0,0,0,0,0,0,0,0);CHKERRQ(ierr); 585 ierr = DMGetCoordinates(dm, &coordinates);CHKERRQ(ierr); 586 ierr = DMGetCoordinateDM(dm, &cdm);CHKERRQ(ierr); 587 ierr = DMDAVecGetClosure(cdm, PETSC_NULL, coordinates, cell, &vertices);CHKERRQ(ierr); 588 for (d = 0; d < dim; ++d) { 589 v0[d] = PetscRealPart(vertices[d]); 590 } 591 switch(dim) { 592 case 2: 593 for (q = 0; q < quad->numQuadPoints; ++q) { 594 ierr = DMDAComputeCellGeometry_2D(dm, vertices, &quad->quadPoints[q*dim], J, invJ, detJ);CHKERRQ(ierr); 595 } 596 break; 597 default: 598 SETERRQ1(((PetscObject) dm)->comm, PETSC_ERR_SUP, "Dimension %d not supported", dim); 599 } 600 PetscFunctionReturn(0); 601 } 602