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