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From: Jeff Squyres (jsquyres_at_[hidden])
Date: 2007-03-24 08:03:30


On Mar 22, 2007, at 12:18 PM, tim gunter wrote:

> On 3/22/07, Jeff Squyres <jsquyres_at_[hidden]> wrote:
> Is this a TCP-based cluster?
>
> yes
>
> If so, do you have multiple IP addresses on your frontend machine?
> Check out these two FAQ entries to see if they help:
>
> http://www.open-mpi.org/faq/?category=tcp#tcp-routability
> http://www.open-mpi.org/faq/?category=tcp#tcp-selection
>
> ok, using the internal interfaces only fixed the problem.

Per the tcp-routability FAQ entry, were our heuristics incorrect
about deciding which IP address(es) to connect to? E.g., did all
your interfaces have public IP addresses, or something else that went
against our assumptions?

-- 
Jeff Squyres
Cisco Systems