petsc-3.3-p7 2013-05-11

DMDASetRefinementFactor

Set the ratios that the DMDA grid is refined

Synopsis

#include "petscdmda.h"   
PetscErrorCode  DMDASetRefinementFactor(DM da, PetscInt refine_x, PetscInt refine_y,PetscInt refine_z)
Logically Collective on DMDA

Input Parameters

da - the DMDA object
refine_x - ratio of fine grid to coarse in x direction (2 by default)
refine_y - ratio of fine grid to coarse in y direction (2 by default)
refine_z - ratio of fine grid to coarse in z direction (2 by default)

Options Database

-da_refine_x - refinement ratio in x direction
-da_refine_y - refinement ratio in y direction
-da_refine_z - refinement ratio in z direction

Notes: Pass PETSC_IGNORE to leave a value unchanged

See Also

DMRefine(), DMDAGetRefinementFactor()

Level:intermediate
Location:
src/dm/impls/da/da.c
Index of all DM routines
Table of Contents for all manual pages
Index of all manual pages

Examples

src/ksp/ksp/examples/tutorials/ex38.c.html
src/ksp/ksp/examples/tutorials/ex39.c.html