petsc-3.14.6 2021-03-30
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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 da

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 refine_x - refinement ratio in x direction
-da_refine_y rafine_y - refinement ratio in y direction
-da_refine_z refine_z - refinement ratio in z direction
-da_refine <n> - refine the DMDA object n times when it is created.

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