:orphan:
# DMKSPGetComputeRHS
get `KSP` right hand side evaluation function 
## Synopsis
```
#include "petscksp.h" 
PetscErrorCode DMKSPGetComputeRHS(DM dm, PetscErrorCode (**func)(KSP, Vec, void *), void *ctx)
```
Not Collective


## Input Parameter

- ***dm -*** `DM` to be used with `KSP`



## Output Parameters

- ***func -*** right hand side evaluation function,  for calling sequence see `KSPSetComputeRHS()`
- ***ctx -*** context for right hand side evaluation





## See Also
 [](ch_ksp), `DMKSP`, `DM`, `KSP`, `DMKSPSetContext()`, `KSPSetComputeRHS()`, `DMKSPSetComputeRHS()`

## Level
advanced

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


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