1c4762a1bSJed Brown static char help[] = "Element closure restrictions in tensor/lexicographic/spectral-element ordering using DMPlex\n\n"; 2c4762a1bSJed Brown 3c4762a1bSJed Brown #include <petscdmplex.h> 4c4762a1bSJed Brown 5c4762a1bSJed Brown int main(int argc, char **argv) 6c4762a1bSJed Brown { 7c4762a1bSJed Brown DM dm; 8c4762a1bSJed Brown PetscSection section; 9c4762a1bSJed Brown PetscFE fe; 10*30602db0SMatthew G. Knepley PetscInt dim,c,cStart,cEnd; 11c4762a1bSJed Brown PetscErrorCode ierr; 12c4762a1bSJed Brown 13c4762a1bSJed Brown ierr = PetscInitialize(&argc,&argv,NULL,help);if (ierr) return ierr; 14*30602db0SMatthew G. Knepley ierr = DMCreate(PETSC_COMM_WORLD, &dm);CHKERRQ(ierr); 15*30602db0SMatthew G. Knepley ierr = DMSetType(dm, DMPLEX);CHKERRQ(ierr); 16*30602db0SMatthew G. Knepley ierr = DMSetFromOptions(dm);CHKERRQ(ierr); 17*30602db0SMatthew G. Knepley ierr = DMViewFromOptions(dm, NULL, "-dm_view");CHKERRQ(ierr); 18*30602db0SMatthew G. Knepley ierr = DMGetDimension(dm, &dim);CHKERRQ(ierr); 19c4762a1bSJed Brown 20c4762a1bSJed Brown ierr = PetscFECreateDefault(PETSC_COMM_SELF,dim,1,PETSC_FALSE,NULL,PETSC_DETERMINE,&fe);CHKERRQ(ierr); 21c4762a1bSJed Brown ierr = DMSetFromOptions(dm);CHKERRQ(ierr); 22c4762a1bSJed Brown ierr = DMAddField(dm,NULL,(PetscObject)fe);CHKERRQ(ierr); 23c4762a1bSJed Brown ierr = DMCreateDS(dm);CHKERRQ(ierr); 24c4762a1bSJed Brown ierr = DMPlexSetClosurePermutationTensor(dm,PETSC_DETERMINE,NULL);CHKERRQ(ierr); 25c4762a1bSJed Brown ierr = DMGetLocalSection(dm,§ion);CHKERRQ(ierr); 26c4762a1bSJed Brown ierr = DMPlexGetHeightStratum(dm,0,&cStart,&cEnd);CHKERRQ(ierr); 27c4762a1bSJed Brown for (c=cStart; c<cEnd; c++) { 28c4762a1bSJed Brown PetscInt numindices,*indices; 2971f0bbf9SMatthew G. Knepley ierr = DMPlexGetClosureIndices(dm,section,section,c,PETSC_TRUE,&numindices,&indices,NULL,NULL);CHKERRQ(ierr); 30c4762a1bSJed Brown ierr = PetscPrintf(PETSC_COMM_SELF,"Element #%D\n",c-cStart);CHKERRQ(ierr); 31c4762a1bSJed Brown ierr = PetscIntView(numindices,indices,PETSC_VIEWER_STDOUT_SELF);CHKERRQ(ierr); 3271f0bbf9SMatthew G. Knepley ierr = DMPlexRestoreClosureIndices(dm,section,section,c,PETSC_TRUE,&numindices,&indices,NULL,NULL);CHKERRQ(ierr); 33c4762a1bSJed Brown } 34c4762a1bSJed Brown 35c4762a1bSJed Brown ierr = PetscFEDestroy(&fe);CHKERRQ(ierr); 36c4762a1bSJed Brown ierr = DMDestroy(&dm);CHKERRQ(ierr); 37c4762a1bSJed Brown ierr = PetscFinalize(); 38c4762a1bSJed Brown return ierr; 39c4762a1bSJed Brown } 40c4762a1bSJed Brown 41c4762a1bSJed Brown /*TEST 42c4762a1bSJed Brown 43c4762a1bSJed Brown test: 44c4762a1bSJed Brown suffix: 1d_q2 45*30602db0SMatthew G. Knepley args: -dm_plex_dim 1 -petscspace_degree 2 -dm_plex_simplex 0 -dm_plex_box_faces 2 46c4762a1bSJed Brown test: 47c4762a1bSJed Brown suffix: 2d_q1 48*30602db0SMatthew G. Knepley args: -dm_plex_dim 2 -petscspace_degree 1 -dm_plex_simplex 0 -dm_plex_box_faces 2,2 49c4762a1bSJed Brown test: 50c4762a1bSJed Brown suffix: 2d_q2 51*30602db0SMatthew G. Knepley args: -dm_plex_dim 2 -petscspace_degree 2 -dm_plex_simplex 0 -dm_plex_box_faces 2,2 52c4762a1bSJed Brown test: 53c4762a1bSJed Brown suffix: 2d_q3 54*30602db0SMatthew G. Knepley args: -dm_plex_dim 2 -petscspace_degree 3 -dm_plex_simplex 0 -dm_plex_box_faces 1,1 55c4762a1bSJed Brown test: 56c4762a1bSJed Brown suffix: 3d_q1 57*30602db0SMatthew G. Knepley args: -dm_plex_dim 3 -petscspace_degree 1 -dm_plex_simplex 0 -dm_plex_box_faces 1,1,1 58c4762a1bSJed Brown 59c4762a1bSJed Brown TEST*/ 60