[petsc-dev] SNES_DIVERGED_USER ?

[Fande Kong]

I agreed that SNES_DIVERGED_OSCILLATORY would even better.

SNES_DIVERGED_USER will be still useful in the future in case we have some
user-designed divergence criteria.

Thanks,

Fande

On Thu, Dec 3, 2020 at 1:07 PM Matthew Knepley <knepley at gmail.com> wrote:

> On Thu, Dec 3, 2020 at 2:27 PM Alexander Lindsay <alexlindsay239 at gmail.com>
> wrote:
>
>> Would you guys support addition of a `SNES_DIVERGED_USER` to
>> `SNESConvergedReason`? We already have `SNES_LINESEARCH_FAILED_USER`, so I
>> think there is some precedent. The motivator is here:
>> https://github.com/idaholab/moose/pull/16377. None of the current
>> options fit the reason we want to error, and this is truly a user criterion
>> for considering the nonlinear solve diverged.
>>
>
> We can definitely add something. Why would it not be
> SNES_DIVERGED_OSCILLATORY?
>
>   Thanks,
>
>      Matt
>
>
>> Alex
>>
> --
> 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
>
> https://www.cse.buffalo.edu/~knepley/
> <http://www.cse.buffalo.edu/~knepley/>
>
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