1 #include <petsc-private/dmpatchimpl.h> /*I "petscdmpatch.h" I*/ 2 #include <petscdmda.h> 3 4 #undef __FUNCT__ 5 #define __FUNCT__ "DMSetFromOptions_Patch" 6 PetscErrorCode DMSetFromOptions_Patch(DM dm) 7 { 8 /* DM_Patch *mesh = (DM_Patch*) dm->data; */ 9 PetscErrorCode ierr; 10 11 PetscFunctionBegin; 12 PetscValidHeaderSpecific(dm, DM_CLASSID, 1); 13 ierr = PetscOptionsHead("DMPatch Options");CHKERRQ(ierr); 14 /* Handle associated vectors */ 15 /* Handle viewing */ 16 ierr = PetscOptionsTail();CHKERRQ(ierr); 17 PetscFunctionReturn(0); 18 } 19 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); 27 28 #undef __FUNCT__ 29 #define __FUNCT__ "DMInitialize_Patch" 30 PetscErrorCode DMInitialize_Patch(DM dm) 31 { 32 PetscFunctionBegin; 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 PetscFunctionReturn(0); 57 } 58 59 #undef __FUNCT__ 60 #define __FUNCT__ "DMCreate_Patch" 61 PETSC_EXTERN PetscErrorCode DMCreate_Patch(DM dm) 62 { 63 DM_Patch *mesh; 64 PetscErrorCode ierr; 65 66 PetscFunctionBegin; 67 PetscValidHeaderSpecific(dm, DM_CLASSID, 1); 68 ierr = PetscNewLog(dm,&mesh);CHKERRQ(ierr); 69 dm->data = mesh; 70 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; 77 78 ierr = DMInitialize_Patch(dm);CHKERRQ(ierr); 79 PetscFunctionReturn(0); 80 } 81 82 #undef __FUNCT__ 83 #define __FUNCT__ "DMPatchCreate" 84 /*@ 85 DMPatchCreate - Creates a DMPatch object, which is a collections of DMs called patches. 86 87 Collective on MPI_Comm 88 89 Input Parameter: 90 . comm - The communicator for the DMPatch object 91 92 Output Parameter: 93 . mesh - The DMPatch object 94 95 Level: beginner 96 97 .keywords: DMPatch, create 98 @*/ 99 PetscErrorCode DMPatchCreate(MPI_Comm comm, DM *mesh) 100 { 101 PetscErrorCode ierr; 102 103 PetscFunctionBegin; 104 PetscValidPointer(mesh,2); 105 ierr = DMCreate(comm, mesh);CHKERRQ(ierr); 106 ierr = DMSetType(*mesh, DMPATCH);CHKERRQ(ierr); 107 PetscFunctionReturn(0); 108 } 109 110 #undef __FUNCT__ 111 #define __FUNCT__ "DMPatchCreateGrid" 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; 117 PetscErrorCode ierr; 118 119 PetscFunctionBegin; 120 ierr = DMPatchCreate(comm, dm);CHKERRQ(ierr); 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 ierr = DMCreate(comm, &da); 131 ierr = DMSetType(da, DMDA); 132 ierr = DMDASetDim(da, dim);CHKERRQ(ierr); 133 ierr = DMDASetSizes(da, gridSize.i, gridSize.j, gridSize.k);CHKERRQ(ierr); 134 ierr = DMDASetBoundaryType(da, DM_BOUNDARY_NONE, DM_BOUNDARY_NONE, DM_BOUNDARY_NONE);CHKERRQ(ierr); 135 ierr = DMDASetDof(da, dof);CHKERRQ(ierr); 136 ierr = DMDASetStencilType(da, DMDA_STENCIL_BOX);CHKERRQ(ierr); 137 ierr = DMDASetStencilWidth(da, width);CHKERRQ(ierr); 138 139 mesh->dmCoarse = da; 140 141 ierr = DMPatchSetPatchSize(*dm, patchSize);CHKERRQ(ierr); 142 ierr = DMPatchSetCommSize(*dm, commSize);CHKERRQ(ierr); 143 PetscFunctionReturn(0); 144 } 145