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# DMTSGetRHSFunctionLocal
get a local rhs function evaluation function. This function is called with local vector containing the local vector information PLUS ghost point information. It should compute a result for all local elements and `DM` will automatically accumulate the overlapping values. 
## Synopsis
```
#include "petscts.h" 
PetscErrorCode DMTSGetRHSFunctionLocal(DM dm, PetscErrorCode (**func)(DM, PetscReal, Vec, Vec, void *), void **ctx)
```
Logically Collective


## Input Parameter

- ***dm   -*** `DM` to associate callback with



## Output Parameters

- ***func -*** local function evaluation
- ***ctx  -*** context for function evaluation





## See Also
 [](ch_ts), `DM`, `DMTSSetRHSFunctionLocal()`, `DMTSSetRHSFunction()`, `DMTSSetIFunction()`, `DMTSSetIJacobianLocal()`

## Level
beginner

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/ts/utils/dmlocalts.c.html#DMTSGetRHSFunctionLocal">src/ts/utils/dmlocalts.c</A>


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[Edit on GitLab](https://gitlab.com/petsc/petsc/-/edit/release/src/ts/utils/dmlocalts.c)


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