1 2 #include <petsc-private/dmdaimpl.h> /*I "petscdmda.h" I*/ 3 4 #undef __FUNCT__ 5 #define __FUNCT__ "DMSetFromOptions_DA" 6 PetscErrorCode DMSetFromOptions_DA(DM da) 7 { 8 PetscErrorCode ierr; 9 DM_DA *dd = (DM_DA*)da->data; 10 PetscInt refine = 0,maxnlevels = 100,refx[100],refy[100],refz[100],n,i; 11 PetscBool negativeMNP = PETSC_FALSE,bM = PETSC_FALSE,bN = PETSC_FALSE, bP = PETSC_FALSE,flg; 12 13 PetscFunctionBegin; 14 PetscValidHeaderSpecific(da,DM_CLASSID,1); 15 16 if (dd->M < 0) { 17 dd->M = -dd->M; 18 bM = PETSC_TRUE; 19 negativeMNP = PETSC_TRUE; 20 } 21 if (dd->dim > 1 && dd->N < 0) { 22 dd->N = -dd->N; 23 bN = PETSC_TRUE; 24 negativeMNP = PETSC_TRUE; 25 } 26 if (dd->dim > 2 && dd->P < 0) { 27 dd->P = -dd->P; 28 bP = PETSC_TRUE; 29 negativeMNP = PETSC_TRUE; 30 } 31 32 ierr = PetscOptionsHead("DMDA Options");CHKERRQ(ierr); 33 if (bM) {ierr = PetscOptionsInt("-da_grid_x","Number of grid points in x direction","DMDASetSizes",dd->M,&dd->M,NULL);CHKERRQ(ierr);} 34 if (bN) {ierr = PetscOptionsInt("-da_grid_y","Number of grid points in y direction","DMDASetSizes",dd->N,&dd->N,NULL);CHKERRQ(ierr);} 35 if (bP) {ierr = PetscOptionsInt("-da_grid_z","Number of grid points in z direction","DMDASetSizes",dd->P,&dd->P,NULL);CHKERRQ(ierr);} 36 37 ierr = PetscOptionsInt("-da_overlap","Decomposition overlap in all directions","DMDASetOverlap",dd->xol,&dd->xol,&flg);CHKERRQ(ierr); 38 if (flg) {ierr = DMDASetOverlap(da,dd->xol,dd->xol,dd->xol);CHKERRQ(ierr);} 39 ierr = PetscOptionsInt("-da_overlap_x","Decomposition overlap in x direction","DMDASetOverlap",dd->xol,&dd->xol,NULL);CHKERRQ(ierr); 40 if (dd->dim > 1) {ierr = PetscOptionsInt("-da_overlap_y","Decomposition overlap in y direction","DMDASetOverlap",dd->yol,&dd->yol,NULL);CHKERRQ(ierr);} 41 if (dd->dim > 2) {ierr = PetscOptionsInt("-da_overlap_z","Decomposition overlap in z direction","DMDASetOverlap",dd->zol,&dd->zol,NULL);CHKERRQ(ierr);} 42 43 ierr = PetscOptionsInt("-da_local_subdomains","","DMDASetNumLocalSubdomains",dd->Nsub,&dd->Nsub,&flg);CHKERRQ(ierr); 44 if (flg) {ierr = DMDASetNumLocalSubDomains(da,dd->Nsub);CHKERRQ(ierr);} 45 46 /* Handle DMDA parallel distibution */ 47 ierr = PetscOptionsInt("-da_processors_x","Number of processors in x direction","DMDASetNumProcs",dd->m,&dd->m,NULL);CHKERRQ(ierr); 48 if (dd->dim > 1) {ierr = PetscOptionsInt("-da_processors_y","Number of processors in y direction","DMDASetNumProcs",dd->n,&dd->n,NULL);CHKERRQ(ierr);} 49 if (dd->dim > 2) {ierr = PetscOptionsInt("-da_processors_z","Number of processors in z direction","DMDASetNumProcs",dd->p,&dd->p,NULL);CHKERRQ(ierr);} 50 /* Handle DMDA refinement */ 51 ierr = PetscOptionsInt("-da_refine_x","Refinement ratio in x direction","DMDASetRefinementFactor",dd->refine_x,&dd->refine_x,NULL);CHKERRQ(ierr); 52 if (dd->dim > 1) {ierr = PetscOptionsInt("-da_refine_y","Refinement ratio in y direction","DMDASetRefinementFactor",dd->refine_y,&dd->refine_y,NULL);CHKERRQ(ierr);} 53 if (dd->dim > 2) {ierr = PetscOptionsInt("-da_refine_z","Refinement ratio in z direction","DMDASetRefinementFactor",dd->refine_z,&dd->refine_z,NULL);CHKERRQ(ierr);} 54 dd->coarsen_x = dd->refine_x; dd->coarsen_y = dd->refine_y; dd->coarsen_z = dd->refine_z; 55 56 /* Get refinement factors, defaults taken from the coarse DMDA */ 57 ierr = DMDAGetRefinementFactor(da,&refx[0],&refy[0],&refz[0]);CHKERRQ(ierr); 58 for (i=1; i<maxnlevels; i++) { 59 refx[i] = refx[0]; 60 refy[i] = refy[0]; 61 refz[i] = refz[0]; 62 } 63 n = maxnlevels; 64 ierr = PetscOptionsGetIntArray(((PetscObject)da)->prefix,"-da_refine_hierarchy_x",refx,&n,NULL);CHKERRQ(ierr); 65 if (da->levelup - da->leveldown >= 0) dd->refine_x = refx[da->levelup - da->leveldown]; 66 if (da->levelup - da->leveldown >= 1) dd->coarsen_x = refx[da->levelup - da->leveldown - 1]; 67 if (dd->dim > 1) { 68 n = maxnlevels; 69 ierr = PetscOptionsGetIntArray(((PetscObject)da)->prefix,"-da_refine_hierarchy_y",refy,&n,NULL);CHKERRQ(ierr); 70 if (da->levelup - da->leveldown >= 0) dd->refine_y = refy[da->levelup - da->leveldown]; 71 if (da->levelup - da->leveldown >= 1) dd->coarsen_y = refy[da->levelup - da->leveldown - 1]; 72 } 73 if (dd->dim > 2) { 74 n = maxnlevels; 75 ierr = PetscOptionsGetIntArray(((PetscObject)da)->prefix,"-da_refine_hierarchy_z",refz,&n,NULL);CHKERRQ(ierr); 76 if (da->levelup - da->leveldown >= 0) dd->refine_z = refz[da->levelup - da->leveldown]; 77 if (da->levelup - da->leveldown >= 1) dd->coarsen_z = refz[da->levelup - da->leveldown - 1]; 78 } 79 80 if (negativeMNP) {ierr = PetscOptionsInt("-da_refine","Uniformly refine DA one or more times","None",refine,&refine,NULL);CHKERRQ(ierr);} 81 ierr = PetscOptionsTail();CHKERRQ(ierr); 82 83 while (refine--) { 84 if (dd->bx == DMDA_BOUNDARY_PERIODIC || dd->interptype == DMDA_Q0) { 85 dd->M = dd->refine_x*dd->M; 86 } else { 87 dd->M = 1 + dd->refine_x*(dd->M - 1); 88 } 89 if (dd->by == DMDA_BOUNDARY_PERIODIC || dd->interptype == DMDA_Q0) { 90 dd->N = dd->refine_y*dd->N; 91 } else { 92 dd->N = 1 + dd->refine_y*(dd->N - 1); 93 } 94 if (dd->bz == DMDA_BOUNDARY_PERIODIC || dd->interptype == DMDA_Q0) { 95 dd->P = dd->refine_z*dd->P; 96 } else { 97 dd->P = 1 + dd->refine_z*(dd->P - 1); 98 } 99 da->levelup++; 100 if (da->levelup - da->leveldown >= 0) { 101 dd->refine_x = refx[da->levelup - da->leveldown]; 102 dd->refine_y = refy[da->levelup - da->leveldown]; 103 dd->refine_z = refz[da->levelup - da->leveldown]; 104 } 105 if (da->levelup - da->leveldown >= 1) { 106 dd->coarsen_x = refx[da->levelup - da->leveldown - 1]; 107 dd->coarsen_y = refy[da->levelup - da->leveldown - 1]; 108 dd->coarsen_z = refz[da->levelup - da->leveldown - 1]; 109 } 110 } 111 PetscFunctionReturn(0); 112 } 113 114 extern PetscErrorCode DMCreateGlobalVector_DA(DM,Vec*); 115 extern PetscErrorCode DMCreateLocalVector_DA(DM,Vec*); 116 extern PetscErrorCode DMGlobalToLocalBegin_DA(DM,Vec,InsertMode,Vec); 117 extern PetscErrorCode DMGlobalToLocalEnd_DA(DM,Vec,InsertMode,Vec); 118 extern PetscErrorCode DMLocalToGlobalBegin_DA(DM,Vec,InsertMode,Vec); 119 extern PetscErrorCode DMLocalToGlobalEnd_DA(DM,Vec,InsertMode,Vec); 120 extern PetscErrorCode DMLocalToLocalBegin_DA(DM,Vec,InsertMode,Vec); 121 extern PetscErrorCode DMLocalToLocalEnd_DA(DM,Vec,InsertMode,Vec); 122 extern PetscErrorCode DMCreateInterpolation_DA(DM,DM,Mat*,Vec*); 123 extern PetscErrorCode DMCreateColoring_DA(DM,ISColoringType,ISColoring*); 124 extern PetscErrorCode DMCreateMatrix_DA(DM,Mat*); 125 extern PetscErrorCode DMCreateCoordinateDM_DA(DM,DM*); 126 extern PetscErrorCode DMRefine_DA(DM,MPI_Comm,DM*); 127 extern PetscErrorCode DMCoarsen_DA(DM,MPI_Comm,DM*); 128 extern PetscErrorCode DMRefineHierarchy_DA(DM,PetscInt,DM[]); 129 extern PetscErrorCode DMCoarsenHierarchy_DA(DM,PetscInt,DM[]); 130 extern PetscErrorCode DMCreateInjection_DA(DM,DM,VecScatter*); 131 extern PetscErrorCode DMCreateAggregates_DA(DM,DM,Mat*); 132 extern PetscErrorCode DMView_DA(DM,PetscViewer); 133 extern PetscErrorCode DMSetUp_DA(DM); 134 extern PetscErrorCode DMDestroy_DA(DM); 135 extern PetscErrorCode DMCreateDomainDecomposition_DA(DM,PetscInt*,char***,IS**,IS**,DM**); 136 extern PetscErrorCode DMCreateDomainDecompositionScatters_DA(DM,PetscInt,DM*,VecScatter**,VecScatter**,VecScatter**); 137 138 #undef __FUNCT__ 139 #define __FUNCT__ "DMLoad_DA" 140 PetscErrorCode DMLoad_DA(DM da,PetscViewer viewer) 141 { 142 PetscErrorCode ierr; 143 PetscInt dim,m,n,p,dof,swidth; 144 DMDAStencilType stencil; 145 DMDABoundaryType bx,by,bz; 146 PetscBool coors; 147 DM dac; 148 Vec c; 149 150 PetscFunctionBegin; 151 ierr = PetscViewerBinaryRead(viewer,&dim,1,PETSC_INT);CHKERRQ(ierr); 152 ierr = PetscViewerBinaryRead(viewer,&m,1,PETSC_INT);CHKERRQ(ierr); 153 ierr = PetscViewerBinaryRead(viewer,&n,1,PETSC_INT);CHKERRQ(ierr); 154 ierr = PetscViewerBinaryRead(viewer,&p,1,PETSC_INT);CHKERRQ(ierr); 155 ierr = PetscViewerBinaryRead(viewer,&dof,1,PETSC_INT);CHKERRQ(ierr); 156 ierr = PetscViewerBinaryRead(viewer,&swidth,1,PETSC_INT);CHKERRQ(ierr); 157 ierr = PetscViewerBinaryRead(viewer,&bx,1,PETSC_ENUM);CHKERRQ(ierr); 158 ierr = PetscViewerBinaryRead(viewer,&by,1,PETSC_ENUM);CHKERRQ(ierr); 159 ierr = PetscViewerBinaryRead(viewer,&bz,1,PETSC_ENUM);CHKERRQ(ierr); 160 ierr = PetscViewerBinaryRead(viewer,&stencil,1,PETSC_ENUM);CHKERRQ(ierr); 161 162 ierr = DMDASetDim(da, dim);CHKERRQ(ierr); 163 ierr = DMDASetSizes(da, m,n,p);CHKERRQ(ierr); 164 ierr = DMDASetBoundaryType(da, bx, by, bz);CHKERRQ(ierr); 165 ierr = DMDASetDof(da, dof);CHKERRQ(ierr); 166 ierr = DMDASetStencilType(da, stencil);CHKERRQ(ierr); 167 ierr = DMDASetStencilWidth(da, swidth);CHKERRQ(ierr); 168 ierr = DMSetUp(da);CHKERRQ(ierr); 169 ierr = PetscViewerBinaryRead(viewer,&coors,1,PETSC_ENUM);CHKERRQ(ierr); 170 if (coors) { 171 ierr = DMGetCoordinateDM(da,&dac);CHKERRQ(ierr); 172 ierr = DMCreateGlobalVector(dac,&c);CHKERRQ(ierr); 173 ierr = VecLoad(c,viewer);CHKERRQ(ierr); 174 ierr = DMSetCoordinates(da,c);CHKERRQ(ierr); 175 ierr = VecDestroy(&c);CHKERRQ(ierr); 176 } 177 PetscFunctionReturn(0); 178 } 179 180 #undef __FUNCT__ 181 #define __FUNCT__ "DMCreateSubDM_DA" 182 PetscErrorCode DMCreateSubDM_DA(DM dm, PetscInt numFields, PetscInt fields[], IS *is, DM *subdm) 183 { 184 DM_DA *da = (DM_DA*) dm->data; 185 PetscSection section; 186 PetscErrorCode ierr; 187 188 PetscFunctionBegin; 189 if (subdm) { 190 PetscSF sf; 191 Vec coords; 192 void *ctx; 193 /* Cannot use DMClone since the dof stuff is mixed in. Ugh 194 ierr = DMClone(dm, subdm);CHKERRQ(ierr); */ 195 ierr = DMCreate(PetscObjectComm((PetscObject)dm), subdm);CHKERRQ(ierr); 196 ierr = DMGetPointSF(dm, &sf);CHKERRQ(ierr); 197 ierr = DMSetPointSF(*subdm, sf);CHKERRQ(ierr); 198 ierr = DMGetApplicationContext(dm, &ctx);CHKERRQ(ierr); 199 ierr = DMSetApplicationContext(*subdm, ctx);CHKERRQ(ierr); 200 ierr = DMGetCoordinatesLocal(dm, &coords);CHKERRQ(ierr); 201 if (coords) { 202 ierr = DMSetCoordinatesLocal(*subdm, coords);CHKERRQ(ierr); 203 } else { 204 ierr = DMGetCoordinates(dm, &coords);CHKERRQ(ierr); 205 if (coords) {ierr = DMSetCoordinates(*subdm, coords);CHKERRQ(ierr);} 206 } 207 208 ierr = DMSetType(*subdm, DMDA);CHKERRQ(ierr); 209 ierr = DMDASetDim(*subdm, da->dim);CHKERRQ(ierr); 210 ierr = DMDASetSizes(*subdm, da->M, da->N, da->P);CHKERRQ(ierr); 211 ierr = DMDASetNumProcs(*subdm, da->m, da->n, da->p);CHKERRQ(ierr); 212 ierr = DMDASetBoundaryType(*subdm, da->bx, da->by, da->bz);CHKERRQ(ierr); 213 ierr = DMDASetDof(*subdm, numFields);CHKERRQ(ierr); 214 ierr = DMDASetStencilType(*subdm, da->stencil_type);CHKERRQ(ierr); 215 ierr = DMDASetStencilWidth(*subdm, da->s);CHKERRQ(ierr); 216 ierr = DMDASetOwnershipRanges(*subdm, da->lx, da->ly, da->lz);CHKERRQ(ierr); 217 } 218 ierr = DMGetDefaultSection(dm, §ion);CHKERRQ(ierr); 219 if (section) { 220 ierr = DMCreateSubDM_Section_Private(dm, numFields, fields, is, subdm);CHKERRQ(ierr); 221 } else { 222 if (is) { 223 PetscInt *indices, cnt = 0, dof = da->w, i, j; 224 225 ierr = PetscMalloc1(da->Nlocal*numFields/dof, &indices);CHKERRQ(ierr); 226 for (i = da->base/dof; i < (da->base+da->Nlocal)/dof; ++i) { 227 for (j = 0; j < numFields; ++j) { 228 indices[cnt++] = dof*i + fields[j]; 229 } 230 } 231 if (cnt != da->Nlocal*numFields/dof) SETERRQ2(PETSC_COMM_SELF, PETSC_ERR_PLIB, "Count %d does not equal expected value %d", cnt, da->Nlocal*numFields/dof); 232 ierr = ISCreateGeneral(PetscObjectComm((PetscObject) dm), cnt, indices, PETSC_OWN_POINTER, is);CHKERRQ(ierr); 233 } 234 } 235 PetscFunctionReturn(0); 236 } 237 238 #undef __FUNCT__ 239 #define __FUNCT__ "DMCreateFieldDecomposition_DA" 240 PetscErrorCode DMCreateFieldDecomposition_DA(DM dm, PetscInt *len,char ***namelist, IS **islist, DM **dmlist) 241 { 242 PetscInt i; 243 PetscErrorCode ierr; 244 DM_DA *dd = (DM_DA*)dm->data; 245 PetscInt dof = dd->w; 246 247 PetscFunctionBegin; 248 if (len) *len = dof; 249 if (islist) { 250 Vec v; 251 PetscInt rstart,n; 252 253 ierr = DMGetGlobalVector(dm,&v);CHKERRQ(ierr); 254 ierr = VecGetOwnershipRange(v,&rstart,NULL);CHKERRQ(ierr); 255 ierr = VecGetLocalSize(v,&n);CHKERRQ(ierr); 256 ierr = DMRestoreGlobalVector(dm,&v);CHKERRQ(ierr); 257 ierr = PetscMalloc1(dof,islist);CHKERRQ(ierr); 258 for (i=0; i<dof; i++) { 259 ierr = ISCreateStride(PetscObjectComm((PetscObject)dm),n/dof,rstart+i,dof,&(*islist)[i]);CHKERRQ(ierr); 260 } 261 } 262 if (namelist) { 263 ierr = PetscMalloc1(dof, namelist);CHKERRQ(ierr); 264 if (dd->fieldname) { 265 for (i=0; i<dof; i++) { 266 ierr = PetscStrallocpy(dd->fieldname[i],&(*namelist)[i]);CHKERRQ(ierr); 267 } 268 } else SETERRQ(PETSC_COMM_SELF,PETSC_ERR_SUP,"Currently DMDA must have fieldnames"); 269 } 270 if (dmlist) { 271 DM da; 272 273 ierr = DMDACreate(PetscObjectComm((PetscObject)dm), &da);CHKERRQ(ierr); 274 ierr = DMDASetDim(da, dd->dim);CHKERRQ(ierr); 275 ierr = DMDASetSizes(da, dd->M, dd->N, dd->P);CHKERRQ(ierr); 276 ierr = DMDASetNumProcs(da, dd->m, dd->n, dd->p);CHKERRQ(ierr); 277 ierr = DMDASetBoundaryType(da, dd->bx, dd->by, dd->bz);CHKERRQ(ierr); 278 ierr = DMDASetDof(da, 1);CHKERRQ(ierr); 279 ierr = DMDASetStencilType(da, dd->stencil_type);CHKERRQ(ierr); 280 ierr = DMDASetStencilWidth(da, dd->s);CHKERRQ(ierr); 281 ierr = DMSetUp(da);CHKERRQ(ierr); 282 ierr = PetscMalloc1(dof,dmlist);CHKERRQ(ierr); 283 for (i=0; i<dof-1; i++) {ierr = PetscObjectReference((PetscObject)da);CHKERRQ(ierr);} 284 for (i=0; i<dof; i++) (*dmlist)[i] = da; 285 } 286 PetscFunctionReturn(0); 287 } 288 289 #undef __FUNCT__ 290 #define __FUNCT__ "DMClone_DA" 291 PetscErrorCode DMClone_DA(DM dm, DM *newdm) 292 { 293 DM_DA *da = (DM_DA *) dm->data; 294 PetscErrorCode ierr; 295 296 PetscFunctionBegin; 297 ierr = DMSetType(*newdm, DMDA);CHKERRQ(ierr); 298 ierr = DMDASetDim(*newdm, da->dim);CHKERRQ(ierr); 299 ierr = DMDASetSizes(*newdm, da->M, da->N, da->P);CHKERRQ(ierr); 300 ierr = DMDASetNumProcs(*newdm, da->m, da->n, da->p);CHKERRQ(ierr); 301 ierr = DMDASetBoundaryType(*newdm, da->bx, da->by, da->bz);CHKERRQ(ierr); 302 ierr = DMDASetDof(*newdm, da->w);CHKERRQ(ierr); 303 ierr = DMDASetStencilType(*newdm, da->stencil_type);CHKERRQ(ierr); 304 ierr = DMDASetStencilWidth(*newdm, da->s);CHKERRQ(ierr); 305 ierr = DMDASetOwnershipRanges(*newdm, da->lx, da->ly, da->lz);CHKERRQ(ierr); 306 ierr = DMSetUp(*newdm);CHKERRQ(ierr); 307 PetscFunctionReturn(0); 308 } 309 310 /*MC 311 DMDA = "da" - A DM object that is used to manage data for a structured grid in 1, 2, or 3 dimensions. 312 In the global representation of the vector each process stores a non-overlapping rectangular (or slab in 3d) portion of the grid points. 313 In the local representation these rectangular regions (slabs) are extended in all directions by a stencil width. 314 315 The vectors can be thought of as either cell centered or vertex centered on the mesh. But some variables cannot be cell centered and others 316 vertex centered. 317 318 319 Level: intermediate 320 321 .seealso: DMType, DMCOMPOSITE, DMDACreate(), DMCreate(), DMSetType() 322 M*/ 323 324 325 #undef __FUNCT__ 326 #define __FUNCT__ "DMCreate_DA" 327 PETSC_EXTERN PetscErrorCode DMCreate_DA(DM da) 328 { 329 PetscErrorCode ierr; 330 DM_DA *dd; 331 332 PetscFunctionBegin; 333 PetscValidPointer(da,1); 334 ierr = PetscNewLog(da,&dd);CHKERRQ(ierr); 335 da->data = dd; 336 337 dd->dim = -1; 338 dd->interptype = DMDA_Q1; 339 dd->refine_x = 2; 340 dd->refine_y = 2; 341 dd->refine_z = 2; 342 dd->coarsen_x = 2; 343 dd->coarsen_y = 2; 344 dd->coarsen_z = 2; 345 dd->fieldname = NULL; 346 dd->nlocal = -1; 347 dd->Nlocal = -1; 348 dd->M = -1; 349 dd->N = -1; 350 dd->P = -1; 351 dd->m = -1; 352 dd->n = -1; 353 dd->p = -1; 354 dd->w = -1; 355 dd->s = -1; 356 357 dd->xs = -1; dd->xe = -1; dd->ys = -1; dd->ye = -1; dd->zs = -1; dd->ze = -1; 358 dd->Xs = -1; dd->Xe = -1; dd->Ys = -1; dd->Ye = -1; dd->Zs = -1; dd->Ze = -1; 359 360 dd->Nsub = 1; 361 dd->xol = 0; 362 dd->yol = 0; 363 dd->zol = 0; 364 dd->xo = 0; 365 dd->yo = 0; 366 dd->zo = 0; 367 dd->Mo = -1; 368 dd->No = -1; 369 dd->Po = -1; 370 371 dd->gtol = NULL; 372 dd->ltog = NULL; 373 dd->ltol = NULL; 374 dd->ao = NULL; 375 dd->base = -1; 376 dd->bx = DMDA_BOUNDARY_NONE; 377 dd->by = DMDA_BOUNDARY_NONE; 378 dd->bz = DMDA_BOUNDARY_NONE; 379 dd->stencil_type = DMDA_STENCIL_BOX; 380 dd->interptype = DMDA_Q1; 381 dd->idx = NULL; 382 dd->Nl = -1; 383 dd->lx = NULL; 384 dd->ly = NULL; 385 dd->lz = NULL; 386 387 dd->elementtype = DMDA_ELEMENT_Q1; 388 389 da->ops->globaltolocalbegin = DMGlobalToLocalBegin_DA; 390 da->ops->globaltolocalend = DMGlobalToLocalEnd_DA; 391 da->ops->localtoglobalbegin = DMLocalToGlobalBegin_DA; 392 da->ops->localtoglobalend = DMLocalToGlobalEnd_DA; 393 da->ops->localtolocalbegin = DMLocalToLocalBegin_DA; 394 da->ops->localtolocalend = DMLocalToLocalEnd_DA; 395 da->ops->createglobalvector = DMCreateGlobalVector_DA; 396 da->ops->createlocalvector = DMCreateLocalVector_DA; 397 da->ops->createinterpolation = DMCreateInterpolation_DA; 398 da->ops->getcoloring = DMCreateColoring_DA; 399 da->ops->creatematrix = DMCreateMatrix_DA; 400 da->ops->refine = DMRefine_DA; 401 da->ops->coarsen = DMCoarsen_DA; 402 da->ops->refinehierarchy = DMRefineHierarchy_DA; 403 da->ops->coarsenhierarchy = DMCoarsenHierarchy_DA; 404 da->ops->getinjection = DMCreateInjection_DA; 405 da->ops->getaggregates = DMCreateAggregates_DA; 406 da->ops->destroy = DMDestroy_DA; 407 da->ops->view = 0; 408 da->ops->setfromoptions = DMSetFromOptions_DA; 409 da->ops->setup = DMSetUp_DA; 410 da->ops->clone = DMClone_DA; 411 da->ops->load = DMLoad_DA; 412 da->ops->createcoordinatedm = DMCreateCoordinateDM_DA; 413 da->ops->createsubdm = DMCreateSubDM_DA; 414 da->ops->createfielddecomposition = DMCreateFieldDecomposition_DA; 415 da->ops->createdomaindecomposition = DMCreateDomainDecomposition_DA; 416 da->ops->createddscatters = DMCreateDomainDecompositionScatters_DA; 417 PetscFunctionReturn(0); 418 } 419 420 #undef __FUNCT__ 421 #define __FUNCT__ "DMDACreate" 422 /*@ 423 DMDACreate - Creates a DMDA object. 424 425 Collective on MPI_Comm 426 427 Input Parameter: 428 . comm - The communicator for the DMDA object 429 430 Output Parameter: 431 . da - The DMDA object 432 433 Level: advanced 434 435 Developers Note: Since there exists DMDACreate1/2/3d() should this routine even exist? 436 437 .keywords: DMDA, create 438 .seealso: DMDASetSizes(), DMDADuplicate(), DMDACreate1d(), DMDACreate2d(), DMDACreate3d() 439 @*/ 440 PetscErrorCode DMDACreate(MPI_Comm comm, DM *da) 441 { 442 PetscErrorCode ierr; 443 444 PetscFunctionBegin; 445 PetscValidPointer(da,2); 446 ierr = DMCreate(comm,da);CHKERRQ(ierr); 447 ierr = DMSetType(*da,DMDA);CHKERRQ(ierr); 448 PetscFunctionReturn(0); 449 } 450 451 452