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Subject: Re: [OMPI devel] Hang in collectives involving shared memory
From: Ralph Castain (rhc_at_[hidden])
Date: 2009-06-10 15:15:35


Well, it would - except then -all- the procs would run real slow! :-)

Still, might be a reasonable diagnostic step to try...will give it a shot.

On Wed, Jun 10, 2009 at 1:12 PM, Bogdan Costescu <
Bogdan.Costescu_at_[hidden]> wrote:

> On Wed, 10 Jun 2009, Ralph Castain wrote:
>
> I appreciate the input and have captured it in the ticket. Since this
>> appears to be a NUMA-related issue, the lack of NUMA support in your setup
>> makes the test difficult to interpret.
>>
>
> Based on this reasoning, disabling libnuma support in your OpenMPI build
> should also solve the problem, or do I interpret things the wrong way ?
>
>
> --
> Bogdan Costescu
>
> IWR, University of Heidelberg, INF 368, D-69120 Heidelberg, Germany
> Phone: +49 6221 54 8240, Fax: +49 6221 54 8850
> E-mail: bogdan.costescu_at_[hidden]
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