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