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# SNESFASFullSetDownSweep
Smooth during the initial downsweep for `SNESFAS` 
## Synopsis
```
#include "petscsnes.h"  
PetscErrorCode SNESFASFullSetDownSweep(SNES snes, PetscBool swp)
```
Logically Collective


## Input Parameters

- ***snes -*** the `SNESFAS` nonlinear multigrid context
- ***swp -*** whether to downsweep or not



## Options Database Key

- ***-snes_fas_full_downsweep -*** Sets number of pre-smoothing steps





## See Also
 `SNESFAS`, `SNESFASSetNumberSmoothUp()`

## Level
advanced

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/snes/impls/fas/fasfunc.c.html#SNESFASFullSetDownSweep">src/snes/impls/fas/fasfunc.c</A>


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[Edit on GitLab](https://gitlab.com/petsc/petsc/-/edit/release/src/snes/impls/fas/fasfunc.c)


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