# PCPARMSSetSolveTolerances
Sets the convergence tolerance and the maximum iterations for the inner GMRES solver, when the Schur global preconditioner is used. 
## Synopsis
```
#include "petscpc.h" 
PetscErrorCode PCPARMSSetSolveTolerances(PC pc, PetscReal tol, PetscInt maxits)
```
Collective on pc


## Input Parameters

- ***pc -*** the preconditioner context
- ***tol -*** the convergence tolerance
- ***maxits -*** the maximum number of iterations to use



## Options Database Keys

- ***-pc_parms_solve_tol -*** set the tolerance for local solve
- ***-pc_parms_max_it -*** set the maximum number of inner iterations





## Note
See the pARMS functions `parms_PCSetInnerEps()` and `parms_PCSetInnerMaxits()` for more information.


## See Also
 `PCPARMS`, `PCPARMSSetSolveRestart()`

## Level
intermediate

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/ksp/pc/impls/parms/parms.c.html#PCPARMSSetSolveTolerances">src/ksp/pc/impls/parms/parms.c</A>

## Implementations

<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/ksp/pc/impls/parms/parms.c.html#PCPARMSSetSolveTolerances_PARMS">PCPARMSSetSolveTolerances_PARMS in src/ksp/pc/impls/parms/parms.c</A><BR>


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


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