[mpich-discuss] Deadlock in MPI_Ibarrier over ch3:sock

[Jed Brown]

On Wed, Jan 23, 2013 at 2:44 PM, Dave Goodell <goodell at mcs.anl.gov> wrote:

> A run-time test that doesn't require looking at which symbols are compiled
> into the app?  I can't think of one off the top of my head, although I
> suppose we could add one in the future via either MPI_T or the new
> MPI_Get_library_version routine.
>

A configure-time test is fine. I can look for symbols in libmpich.a, for
example. Is something exported that would be proof-positive of ch3:sock? We
would like to avoid _running_ MPI code at configure time because many
machines prevent anything that links MPI from running on an interactive
node.
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