[petsc-dev] DMGetOutputDM hangs on multiple procs

[Sander Arens]

Ah, great! Thanks, Matt.

On 13 July 2016 at 04:44, Matthew Knepley <knepley at gmail.com> wrote:

> 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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