#include "petscdm.h" PetscErrorCode DMSetFromOptions(DM dm)Collective on DM
| -dm_preallocate_only: Only preallocate the matrix for DMCreateMatrix(), but do not fill it with zeros | - . -dm_vec_type <type> type of vector to create inside DM | |
| -dm_mat_type <type> type of matrix to create inside DM | - - -dm_coloring_type <global or ghosted> |