# DMSetFineDM
Set the fine mesh from which this was obtained by coarsening 
## Synopsis
```
#include "petscdm.h"          
#include "petscdmlabel.h"     
#include "petscds.h"     
PetscErrorCode DMSetFineDM(DM dm, DM fdm)
```

## Input Parameters

- ***dm -*** The `DM` object
- ***fdm -*** The fine `DM`





## Note
Normally this is set automatically by `DMCoarsen()`


## See Also
 `DMGetFineDM()`, `DMCoarsen()`, `DMRefine()`

## Level
developer

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/dm/interface/dm.c.html#DMSetFineDM">src/dm/interface/dm.c</A>


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


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