:orphan:
# DMShellGetRefine
Get the routine used to refine the `DMSHELL` 
## Synopsis
```
#include "petscdmshell.h"  
PetscErrorCode DMShellGetRefine(DM dm, PetscErrorCode (**refine)(DM, MPI_Comm, DM *))
```
Logically Collective


## Input Parameter

- ***dm -*** the `DMSHELL`



## Output Parameter

- ***refine -*** the routine that refines the `DM`





## See Also
 `DM`, `DMSHELL`, `DMShellSetCoarsen()`, `DMCoarsen()`, `DMShellSetRefine()`, `DMRefine()`

## Level
advanced

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/dm/impls/shell/dmshell.c.html#DMShellGetRefine">src/dm/impls/shell/dmshell.c</A>


---
[Edit on GitLab](https://gitlab.com/petsc/petsc/-/edit/release/src/dm/impls/shell/dmshell.c)


[Index of all DM routines](index.md)  
[Table of Contents for all manual pages](/manualpages/index.md)  
[Index of all manual pages](/manualpages/singleindex.md)