petsc-3.7.5 2017-01-01
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Set the ratios that the DMDA grid is refined


#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()

Index of all DM routines
Table of Contents for all manual pages
Index of all manual pages