[petsc-users] KSPConvergedReason = KSP_CONVERGED_ITERATING

[Matthew Knepley]

On Mon, Jan 11, 2016 at 8:53 PM, Chung-Kan Huang <ckhuangf at gmail.com> wrote:

>
> Hi,
>
> I am encountering KSPSolve hanging with one process finished
> KSPSolve reporting KSPConvergedReason = KSP_CONVERGED_ITERATING while other
> processes stuck in KSPSolve.
>
> The problem is not seen when code was compiled in debug mode and problem
> only appears after more than 10 hours of run time with production mode.
>
> Can anyone suggest how I can do to debug this case?
>

Can you send the complete solver being used? Something like the output of
-ksp_view. Are you using a custom PC?

  Matt


> Thanks,
>
> Ken
>
>


-- 
What most experimenters take for granted before they begin their
experiments is infinitely more interesting than any results to which their
experiments lead.
-- Norbert Wiener
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