[petsc-users] KSPConvergedReason = KSP_CONVERGED_ITERATING

Matthew Knepley knepley at gmail.com
Mon Jan 11 21:03:32 CST 2016

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?


> 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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