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 PetscErrorCode ierr; 33 34 PetscFunctionBegin; 35 ierr = PetscStrallocpy(VECSTANDARD,(char**) &dm->vectype);CHKERRQ(ierr); 36 37 dm->ops->view = DMView_Patch; 38 dm->ops->setfromoptions = DMSetFromOptions_Patch; 39 dm->ops->setup = DMSetUp_Patch; 40 dm->ops->createglobalvector = DMCreateGlobalVector_Patch; 41 dm->ops->createlocalvector = DMCreateLocalVector_Patch; 42 dm->ops->createlocaltoglobalmapping = NULL; 43 dm->ops->createlocaltoglobalmappingblock = NULL; 44 dm->ops->createfieldis = NULL; 45 dm->ops->getcoloring = 0; 46 dm->ops->creatematrix = 0; 47 dm->ops->createinterpolation = 0; 48 dm->ops->getaggregates = 0; 49 dm->ops->getinjection = 0; 50 dm->ops->refine = 0; 51 dm->ops->coarsen = 0; 52 dm->ops->refinehierarchy = 0; 53 dm->ops->coarsenhierarchy = 0; 54 dm->ops->globaltolocalbegin = NULL; 55 dm->ops->globaltolocalend = NULL; 56 dm->ops->localtoglobalbegin = NULL; 57 dm->ops->localtoglobalend = NULL; 58 dm->ops->destroy = DMDestroy_Patch; 59 dm->ops->createsubdm = DMCreateSubDM_Patch; 60 PetscFunctionReturn(0); 61 } 62 63 #undef __FUNCT__ 64 #define __FUNCT__ "DMCreate_Patch" 65 PETSC_EXTERN PetscErrorCode DMCreate_Patch(DM dm) 66 { 67 DM_Patch *mesh; 68 PetscErrorCode ierr; 69 70 PetscFunctionBegin; 71 PetscValidHeaderSpecific(dm, DM_CLASSID, 1); 72 ierr = PetscNewLog(dm, DM_Patch, &mesh);CHKERRQ(ierr); 73 dm->data = mesh; 74 75 mesh->refct = 1; 76 mesh->dmCoarse = NULL; 77 mesh->patchSize.i = 0; 78 mesh->patchSize.j = 0; 79 mesh->patchSize.k = 0; 80 mesh->patchSize.c = 0; 81 82 ierr = DMInitialize_Patch(dm);CHKERRQ(ierr); 83 PetscFunctionReturn(0); 84 } 85 86 #undef __FUNCT__ 87 #define __FUNCT__ "DMPatchCreate" 88 /*@ 89 DMPatchCreate - Creates a DMPatch object, which is a collections of DMs called patches. 90 91 Collective on MPI_Comm 92 93 Input Parameter: 94 . comm - The communicator for the DMPatch object 95 96 Output Parameter: 97 . mesh - The DMPatch object 98 99 Level: beginner 100 101 .keywords: DMPatch, create 102 @*/ 103 PetscErrorCode DMPatchCreate(MPI_Comm comm, DM *mesh) 104 { 105 PetscErrorCode ierr; 106 107 PetscFunctionBegin; 108 PetscValidPointer(mesh,2); 109 ierr = DMCreate(comm, mesh);CHKERRQ(ierr); 110 ierr = DMSetType(*mesh, DMPATCH);CHKERRQ(ierr); 111 PetscFunctionReturn(0); 112 } 113 114 #undef __FUNCT__ 115 #define __FUNCT__ "DMPatchCreateGrid" 116 PetscErrorCode DMPatchCreateGrid(MPI_Comm comm, PetscInt dim, MatStencil patchSize, MatStencil commSize, MatStencil gridSize, DM *dm) 117 { 118 DM_Patch *mesh; 119 DM da; 120 PetscInt dof = 1, width = 1; 121 PetscErrorCode ierr; 122 123 PetscFunctionBegin; 124 ierr = DMPatchCreate(comm, dm);CHKERRQ(ierr); 125 mesh = (DM_Patch*) (*dm)->data; 126 if (dim < 2) { 127 gridSize.j = 1; 128 patchSize.j = 1; 129 } 130 if (dim < 3) { 131 gridSize.k = 1; 132 patchSize.k = 1; 133 } 134 ierr = DMCreate(comm, &da); 135 ierr = DMSetType(da, DMDA); 136 ierr = DMDASetDim(da, dim);CHKERRQ(ierr); 137 ierr = DMDASetSizes(da, gridSize.i, gridSize.j, gridSize.k);CHKERRQ(ierr); 138 ierr = DMDASetBoundaryType(da, DMDA_BOUNDARY_NONE, DMDA_BOUNDARY_NONE, DMDA_BOUNDARY_NONE);CHKERRQ(ierr); 139 ierr = DMDASetDof(da, dof);CHKERRQ(ierr); 140 ierr = DMDASetStencilType(da, DMDA_STENCIL_BOX);CHKERRQ(ierr); 141 ierr = DMDASetStencilWidth(da, width);CHKERRQ(ierr); 142 143 mesh->dmCoarse = da; 144 145 ierr = DMPatchSetPatchSize(*dm, patchSize);CHKERRQ(ierr); 146 ierr = DMPatchSetCommSize(*dm, commSize);CHKERRQ(ierr); 147 PetscFunctionReturn(0); 148 } 149