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Subject: [OMPI users] Different Interfaces on Different Nodes .. OpenMPI 1.2.3, 1.2.4 ..
From: Graham Jenkins (Graham.Jenkins_at_[hidden])
Date: 2008-04-14 04:21:47


We're moving from using a single (eth0) interface on our execute nodes
to using a bond interface (bond0) for resilience.
And what we're seeing on those nodes which have been upgraded is:

--
[0,1,1][btl_tcp_component.c:349:mca_btl_tcp_component_create_instances]
invalid interface "eth0"
--
This of course, is because all nodes share a common copy of
openmpi-mca-params.conf .. in which its says:
--
btl_tcp_if_include=eth0
--
So .. does anybody have a suggestion for a way around this during our
migration/upgrade period?
If we place "bond0" in there as well, then we get error messages about
whichever one is absent on the node where execution is happening.
Regards ..
-- 
Graham Jenkins
Senior Software Specialist, eResearch
Monash University (Clayton Campus, Bldg 11, Rm S503)
Email: Graham.Jenkins_at_[hidden]
Tel:   +613 9905-5942 (office)   +614 4850-2491 (mobile)