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# PCISSetSubdomainDiagonalScaling
Set diagonal scaling for `PCIS`. 
## Synopsis
```
#include "petscpc.h" 
PetscErrorCode PCISSetSubdomainDiagonalScaling(PC pc, Vec scaling_factors)
```
Logically Collective


## Input Parameters

- ***pc -*** the preconditioning context
- ***scaling_factors -*** scaling factors for the subdomain





## Note
Intended for use with jumping coefficients cases.


## Developer Note
There is no manual page for `PCIS` nor some of its methods


## See Also
 `PCIS`, `PCBDDC`

## Level
intermediate

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/ksp/pc/impls/is/pcis.c.html#PCISSetSubdomainDiagonalScaling">src/ksp/pc/impls/is/pcis.c</A>

## Implementations

<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/ksp/pc/impls/is/pcis.c.html#PCISSetSubdomainDiagonalScaling_IS">PCISSetSubdomainDiagonalScaling_IS in src/ksp/pc/impls/is/pcis.c</A><BR>


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


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