Looks like a bug to me. I'll file a ticket.
Thanks for the heads up!
On Feb 17, 2010, at 3:59 AM, Michael Hofmann wrote:
> According to the MPI Standard, "only arguments sendbuf, sendcount,
> sendtype, root, and comm are significant" on non-root processes in
> MPI_Gather. However, in routine "ompi_coll_tuned_gather_intra_binomial"
> the value of "rdtype" ("recvtype" of MPI_Gather) is used. This leads to
> crash if an uninitialized value is used.
>
> The problem exists in version 1.4.1.
>
>
> Michael
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Jeff Squyres
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