[petsc-users] SNES failed with reason -3

[Peter Brune]

The solver stagnates; you can try to diagnose what's going on using the
tips from:

http://www.mcs.anl.gov/petsc/documentation/faq.html#kspdiverged

- Peter


On Wed, Apr 16, 2014 at 11:38 AM, Que Cat <quecat001 at gmail.com> wrote:

> Hi Jed and Peter,
>
> Please see the attached file for the output. Thank you for your help.
>
> Que
>
>
> On Wed, Apr 16, 2014 at 10:05 AM, Jed Brown <jed at jedbrown.org> wrote:
>
>> Que Cat <quecat001 at gmail.com> writes:
>>
>> > Dear Petsc-Users,
>> >
>> > I call the nonliner solver snes in my code and it said that "SNES
>> Failed!
>> > Reason -3". I testes with "-pc_type lu" and it passed. I have checked
>> the
>> > hand-coded Jacobian, ant it looks fine. Could you suggest any possible
>> > sources of the errors?
>>
>> Run with -snes_converged_reason -ksp_converged_reason
>> -ksp_monitor_true_residual -snes_view and send the output.
>>
>
>
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