[petsc-users] SNES failed with reason -3

Que Cat quecat001 at gmail.com
Wed Apr 16 20:00:54 CDT 2014


Hi Peter and Jed,

Thank you very much for your comments. The error associated with the
problem state equation. Now, it works fine.

Que


On Wed, Apr 16, 2014 at 11:49 AM, Jed Brown <jed at jedbrown.org> wrote:

> Que Cat <quecat001 at gmail.com> writes:
>
> > Hi Jed and Peter,
> >
> > Please see the attached file for the output. Thank you for your help.
>
> The linear solve has stagnated.  This is usually due to an ineffective
> preconditioner.  Tips here:
>
>
> http://scicomp.stackexchange.com/questions/513/why-is-my-iterative-linear-solver-not-converging
>
> What sort of problem are you solving?
>
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