:orphan:
# KSPResetFromOptions
Sets `KSP` parameters from user options ONLY if the `KSP` was previously set from options 
## Synopsis
```
#include "petscksp.h" 
PetscErrorCode KSPResetFromOptions(KSP ksp)
```
Collective


## Input Parameter

- ***ksp -*** the `KSP` context





## See Also
 [](ch_ksp), `KSPSetFromOptions()`, `KSPSetOptionsPrefix()`

## Level
advanced

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/ksp/ksp/interface/itcl.c.html#KSPResetFromOptions">src/ksp/ksp/interface/itcl.c</A>


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


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