Ben --
Did you not see Jeff Hammond's reply earlier today?
https://www.mail-archive.com/users@lists.open-mpi.org//msg31964.html
> On Jan 24, 2018, at 5:40 PM, Benjamin Brock <br...@berkeley.edu> wrote:
>
> Recently, when I try to run something locally with OpenMPI with more than two
> ranks (I have a dual-core machine), I get the friendly message
>
> --------------------------------------------------------------------------
> There are not enough slots available in the system to satisfy the 3 slots
> that were requested by the application:
> ./kmer_generic_hash
>
> Either request fewer slots for your application, or make more slots available
> for use.
> --------------------------------------------------------------------------
>
> Why is oversubscription now disabled by default when running without a
> hostfile? And how can I turn this off? Is the recommended way to do this
> editing /etc/openmpi/openmpi-default-hostfile?
>
> I'm using default OpenMPI 3.0.0 on Arch Linux.
>
> Cheers,
>
> Ben
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--
Jeff Squyres
jsquy...@cisco.com
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