# MatColoringApply
Apply the coloring to the matrix, producing index sets corresponding to a number of independent sets in the induced graph. 
## Synopsis
```
#include "petscmat.h"  
PetscErrorCode MatColoringApply(MatColoring mc, ISColoring *coloring)
```
Collective


## Input Parameters

- ***mc -*** the `MatColoring` context



## Output Parameter

- ***coloring -*** the `ISColoring` instance containing the coloring





## See Also
 `ISColoring`, `MatColoring`, `MatColoringCreate()`

## Level
beginner

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/mat/color/interface/matcoloring.c.html#MatColoringApply">src/mat/color/interface/matcoloring.c</A>

## Examples
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/mat/tutorials/ex16.c.html">src/mat/tutorials/ex16.c.html</A><BR>

## Implementations

<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/mat/color/impls/greedy/greedy.c.html#MatColoringApply_Greedy">MatColoringApply_Greedy in src/mat/color/impls/greedy/greedy.c</A><BR>
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/mat/color/impls/jp/jp.c.html#MatColoringApply_JP">MatColoringApply_JP in src/mat/color/impls/jp/jp.c</A><BR>
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/mat/color/impls/minpack/color.c.html#MatColoringApply_SL">MatColoringApply_SL in src/mat/color/impls/minpack/color.c</A><BR>
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/mat/color/impls/minpack/color.c.html#MatColoringApply_LF">MatColoringApply_LF in src/mat/color/impls/minpack/color.c</A><BR>
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/mat/color/impls/minpack/color.c.html#MatColoringApply_ID">MatColoringApply_ID in src/mat/color/impls/minpack/color.c</A><BR>
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/mat/color/impls/natural/natural.c.html#MatColoringApply_Natural">MatColoringApply_Natural in src/mat/color/impls/natural/natural.c</A><BR>
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/mat/color/impls/power/power.c.html#MatColoringApply_Power">MatColoringApply_Power in src/mat/color/impls/power/power.c</A><BR>


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[Edit on GitLab](https://gitlab.com/petsc/petsc/-/edit/release/src/mat/color/interface/matcoloring.c)


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