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# PCMGGetSmootherDown
Gets the `KSP` context to be used as smoother before coarse grid correction (pre-smoother). 
## Synopsis
```
#include "petscksp.h" 
PetscErrorCode PCMGGetSmootherDown(PC pc, PetscInt l, KSP *ksp)
```
Not Collective, ksp returned is parallel if pc is


## Input Parameters

- ***pc -*** the multigrid context
- ***l  -*** the level (0 is coarsest) to supply



## Output Parameter

- ***ksp -*** the smoother





## Note
Calling this will result in a different pre and post smoother so you may need to
set options on the post smoother also


## See Also
 `PCMG`, `PCMGGetSmootherUp()`, `PCMGGetSmoother()`

## Level
advanced

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/ksp/pc/impls/mg/mgfunc.c.html#PCMGGetSmootherDown">src/ksp/pc/impls/mg/mgfunc.c</A>


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[Edit on GitLab](https://gitlab.com/petsc/petsc/-/edit/release/src/ksp/pc/impls/mg/mgfunc.c)


[Index of all PC routines](index.md)  
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