On Thu, Jun 23, 2016 at 8:33 AM, Matthew Knepley <[email protected]> wrote:

On Thu, Jun 23, 2016 at 5:46 AM, Sander Arens <[email protected]> wrote:

...

I noticed that DMGetOutputDM hangs when using multiple procs. The culprit is https://bitbucket.org/petsc/petsc/commits/c26acbdef0eedda92db6423afb8b38a150....

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