Looks like someone already took care of it this morning - thanks!
> On Dec 23, 2014, at 11:26 PM, Gilles Gouaillardet
> <gilles.gouaillar...@iferc.org> wrote:
>
> Ralph,
>
> i tried to debug the issue reported by Siegmar at
> http://www.open-mpi.org/community/lists/users/2014/12/26052.php
>
> i have not been able to try this on an heterogeneous cluster yet, but i
> could
> reproduce a hang with 2 nodes and 3 tasks :
>
> mpirun -host node0,node1 -np 3 --mca btl tcp,self --mca coll ^ml
> ./helloworld
>
> git bisect pointed to commit
> https://github.com/hppritcha/ompi/commit/bffb2b7a4bb49c9188d942201b8a8f04872ff63c,
> and reverting a subpart of this commit "fixes" the hang
> (see attached patch)
>
> your change correctly prevents the use of uninitialized data (worst case
> scenario is a crash),
> but has some undesired side effects that eventually causes a hang.
>
>
> could you please have a look at it ?
>
> Cheers,
>
> Gilles
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