On Jun 12, 2012, at 7:45 AM, BOUVIER Benjamin wrote:

> I'll ask my sysadmin to help me configuring the interfaces, so as it to work 
> without defining mca parameter.


Ok, good -- glad you got it tracked down.  A few tips to keep in mind:

- http://www.open-mpi.org/faq/?category=tcp#tcp-selection (you've probably 
already seen this, but I bring it up just for reference)

- http://www.open-mpi.org/faq/?category=tcp#tcp-routability-1.3

- Make sure that all your eth devices are on different subnets.  Bad Things 
can/will happen when you have two eth devices that are on 192.168.1.x (for 
example).

-- 
Jeff Squyres
jsquy...@cisco.com
For corporate legal information go to: 
http://www.cisco.com/web/about/doing_business/legal/cri/


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