[petsc-users] coloring algorithms

Hong hzhang at mcs.anl.gov
Thu Mar 23 11:50:41 CDT 2017


>
> Fande,
>


> I was wondering if the coloring approaches listed online are working?
> Which ones are in parallel, and which ones are in sequential?
>
> http://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/Mat/
> MatColoringType.html#MatColoringType
>

 JP and Greedy are parallel.

>
> If the coloring is in parallel, can it be used with the finite difference
> to compute the Jacobian? Any limitations?
>

Yes, they work quite well. Git it a try. Let us know if you encounter any
problem.

Hong
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