Actual source code: patchcreate.c
petsc-dev 2014-02-02
1: #include <petsc-private/dmpatchimpl.h> /*I "petscdmpatch.h" I*/
2: #include <petscdmda.h>
6: PetscErrorCode DMSetFromOptions_Patch(DM dm)
7: {
8: /* DM_Patch *mesh = (DM_Patch*) dm->data; */
13: PetscOptionsHead("DMPatch Options");
14: /* Handle associated vectors */
15: /* Handle viewing */
16: PetscOptionsTail();
17: return(0);
18: }
20: /* External function declarations here */
21: extern PetscErrorCode DMSetUp_Patch(DM dm);
22: extern PetscErrorCode DMView_Patch(DM dm, PetscViewer viewer);
23: extern PetscErrorCode DMCreateGlobalVector_Patch(DM dm, Vec *g);
24: extern PetscErrorCode DMCreateLocalVector_Patch(DM dm, Vec *l);
25: extern PetscErrorCode DMDestroy_Patch(DM dm);
26: extern PetscErrorCode DMCreateSubDM_Patch(DM dm, PetscInt numFields, PetscInt fields[], IS *is, DM *subdm);
30: PetscErrorCode DMInitialize_Patch(DM dm)
31: {
33: dm->ops->view = DMView_Patch;
34: dm->ops->setfromoptions = DMSetFromOptions_Patch;
35: dm->ops->setup = DMSetUp_Patch;
36: dm->ops->createglobalvector = DMCreateGlobalVector_Patch;
37: dm->ops->createlocalvector = DMCreateLocalVector_Patch;
38: dm->ops->getlocaltoglobalmapping = NULL;
39: dm->ops->getlocaltoglobalmappingblock = NULL;
40: dm->ops->createfieldis = NULL;
41: dm->ops->getcoloring = 0;
42: dm->ops->creatematrix = 0;
43: dm->ops->createinterpolation = 0;
44: dm->ops->getaggregates = 0;
45: dm->ops->getinjection = 0;
46: dm->ops->refine = 0;
47: dm->ops->coarsen = 0;
48: dm->ops->refinehierarchy = 0;
49: dm->ops->coarsenhierarchy = 0;
50: dm->ops->globaltolocalbegin = NULL;
51: dm->ops->globaltolocalend = NULL;
52: dm->ops->localtoglobalbegin = NULL;
53: dm->ops->localtoglobalend = NULL;
54: dm->ops->destroy = DMDestroy_Patch;
55: dm->ops->createsubdm = DMCreateSubDM_Patch;
56: return(0);
57: }
61: PETSC_EXTERN PetscErrorCode DMCreate_Patch(DM dm)
62: {
63: DM_Patch *mesh;
68: PetscNewLog(dm,&mesh);
69: dm->data = mesh;
71: mesh->refct = 1;
72: mesh->dmCoarse = NULL;
73: mesh->patchSize.i = 0;
74: mesh->patchSize.j = 0;
75: mesh->patchSize.k = 0;
76: mesh->patchSize.c = 0;
78: DMInitialize_Patch(dm);
79: return(0);
80: }
84: /*@
85: DMPatchCreate - Creates a DMPatch object, which is a collections of DMs called patches.
87: Collective on MPI_Comm
89: Input Parameter:
90: . comm - The communicator for the DMPatch object
92: Output Parameter:
93: . mesh - The DMPatch object
95: Level: beginner
97: .keywords: DMPatch, create
98: @*/
99: PetscErrorCode DMPatchCreate(MPI_Comm comm, DM *mesh)
100: {
105: DMCreate(comm, mesh);
106: DMSetType(*mesh, DMPATCH);
107: return(0);
108: }
112: PetscErrorCode DMPatchCreateGrid(MPI_Comm comm, PetscInt dim, MatStencil patchSize, MatStencil commSize, MatStencil gridSize, DM *dm)
113: {
114: DM_Patch *mesh;
115: DM da;
116: PetscInt dof = 1, width = 1;
120: DMPatchCreate(comm, dm);
121: mesh = (DM_Patch*) (*dm)->data;
122: if (dim < 2) {
123: gridSize.j = 1;
124: patchSize.j = 1;
125: }
126: if (dim < 3) {
127: gridSize.k = 1;
128: patchSize.k = 1;
129: }
130: DMCreate(comm, &da);
131: DMSetType(da, DMDA);
132: DMDASetDim(da, dim);
133: DMDASetSizes(da, gridSize.i, gridSize.j, gridSize.k);
134: DMDASetBoundaryType(da, DMDA_BOUNDARY_NONE, DMDA_BOUNDARY_NONE, DMDA_BOUNDARY_NONE);
135: DMDASetDof(da, dof);
136: DMDASetStencilType(da, DMDA_STENCIL_BOX);
137: DMDASetStencilWidth(da, width);
139: mesh->dmCoarse = da;
141: DMPatchSetPatchSize(*dm, patchSize);
142: DMPatchSetCommSize(*dm, commSize);
143: return(0);
144: }