[petsc-dev] DMGetOutputDM hangs on multiple procs

[Matthew Knepley]

On Thu, Jun 23, 2016 at 8:33 AM, Matthew Knepley <knepley at gmail.com> wrote:

> On Thu, Jun 23, 2016 at 5:46 AM, Sander Arens <Sander.Arens at ugent.be>
> wrote:
>
>> I noticed that DMGetOutputDM hangs when using multiple procs. The culprit
>> is
>> https://bitbucket.org/petsc/petsc/commits/c26acbdef0eedda92db6423afb8b38a1502ca0c8.
>>
>> This doesn't work when one or more procs don't have any constraints while
>> others have, because the ones with constraints call DMClone (collective)
>> while the other procs don't.
>>
>
> Yep, will have to make the constraint logic global. I can do this at the
> PETSc Meeting
> next week in Vienna.
>

My timing was off, but the fix is in 'next' if you want to try it.

  Thanks,

     Matt


>   Thanks,
>
>     Matt
>
>
>> Thanks,
>> Sander
>>
>
>
>
> --
> 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
>



-- 
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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