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Subject: Re: [OMPI users] mixed myrinet/non-myrinet nodes
From: M D Jones (jonesm_at_[hidden])
Date: 2008-01-16 15:07:37


On Wed, 16 Jan 2008, 8mj6tc902_at_[hidden] wrote:

>
>> Subject: Re: [OMPI users] mixed myrinet/non-myrinet nodes
>> From: M D Jones (jonesm_at_[hidden])
>> Date: 2008-01-15 14:07:19
>> Hmm, that is the way that I expected it to work as well -
>> we see the warnings also, but closely followed by the
>> errors (I've been trying both 1.2.5 and a recent 1.3
>> snapshot with the same behavior). You don't have the
>> mx driver loaded on the nodes that do not have a myrinet
>> card, do you?
>
> Well, the driver isn't "loaded" (ie: the kernel module isn't loaded),
> but the library (libmyriexpress.so) is available. If that library isn't
> available, OpenMPI will probably fail when it tries to call the mx
> functions (even if only to find there's no myrinet card available).

Yeah, that is much better - not having the mx software available on
the non-myrinet nodes was the main problem.

Matt