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Subject: Re: [OMPI users] MPI_Waitall hangs and querying
From: Brock Palen (brockp_at_[hidden])
Date: 2012-03-21 11:40:12


Will do,

Right now I have asked the user to try rebuilding with the newest openmpi just to be safe.

Interesting behavior rank0 the ib counters (using collctl) never gets a packet in, only packets out.

Brock Palen
www.umich.edu/~brockp
CAEN Advanced Computing
brockp_at_[hidden]
(734)936-1985

On Mar 21, 2012, at 11:37 AM, Jeffrey Squyres wrote:

> On Mar 21, 2012, at 11:34 AM, Brock Palen wrote:
>
>> tcp with this code?
>
> Does it matter enough for debugging runs?
>
>> Can we disable the psm mtl and use the verbs emulation on qlogic? While the qlogic verbs isn't that great it is still much faster in my tests than tcp.
>>
>> Is there a particular reason to pick tcp?
>
> Not really. My only thought was that verbs over qlogic devices isn't the most stable stack around (they spend all their effort on PSM, not verbs).
>
> --
> Jeff Squyres
> jsquyres_at_[hidden]
> For corporate legal information go to: http://www.cisco.com/web/about/doing_business/legal/cri/
>
>
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