# PCGAMGSetRepartition
Repartition the degrees of freedom across the processors on the coarser grids when reducing the number of MPI ranks to use 
## Synopsis
```
#include "petscpc.h" 
#include "petscksp.h" 
PetscErrorCode PCGAMGSetRepartition(PC pc, PetscBool n)
```
Collective on pc


## Input Parameters

- ***pc -*** the preconditioner context
- ***n -*** `PETSC_TRUE` or `PETSC_FALSE`



## Options Database Key

- ***-pc_gamg_repartition <true,false> -*** turn on the repartitioning



## Note
This will generally improve the loading balancing of the work on each level




## See Also
 `PCGAMG`, `PCGAMGSetProcEqLim()`, `PCGAMGSetRankReductionFactors()`

## Level
intermediate

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

## Implementations

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


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


[Index of all PC routines](index.md)  
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[Index of all manual pages](/docs/manualpages/singleindex.md)  
