> Date: Thu, 17 Mar 2011 23:40:31 +0100
> From: dominik.goedd...@math.tu-dortmund.de
> To: us...@open-mpi.org
> Subject: Re: [OMPI users] Potential bug in creating MPI_GROUP_EMPTY handling
>
> glad we could help and the two hours of stripping things down were
> effecti
glad we could help and the two hours of stripping things down were
effectively not wasted. Also good to hear (implicitly) that we were not
too stupid to understand the MPI standard...
Since to the best of my understanding, our workaround is practically
overhead-free, we went ahead and coded ev
Sorry for the late reply, but many thanks for the bug report and reliable
reproducer.
I've confirmed the problem and filed a bug about this:
https://svn.open-mpi.org/trac/ompi/ticket/2752
On Mar 6, 2011, at 6:12 PM, Dominik Goeddeke wrote:
> The attached example code (stripped down from
The attached example code (stripped down from a bigger app) demonstrates
a way to trigger a severe crash in all recent ompi releases but not in a
bunch of latest MPICH2 releases. The code is minimalistic and boils down
to the call
MPI_Comm_create(MPI_COMM_WORLD, MPI_GROUP_EMPTY, &dummy_comm);
