# PetscDSUseJacobianPreconditioner
Set whether to construct a Jacobian preconditioner 
## Synopsis
```
#include "petscds.h" 
PetscErrorCode PetscDSUseJacobianPreconditioner(PetscDS prob, PetscBool useJacPre)
```
Not collective


## Input Parameters

- ***prob -*** The `PetscDS`
- ***useJacPre -*** flag that enables construction of a Jacobian preconditioner





## See Also
 `PetscDS`, `PetscDSGetJacobianPreconditioner()`, `PetscDSSetJacobianPreconditioner()`, `PetscDSGetJacobian()`

## Level
intermediate

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/dm/dt/interface/dtds.c.html#PetscDSUseJacobianPreconditioner">src/dm/dt/interface/dtds.c</A>


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