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From: Tim S. Woodall (twoodall_at_[hidden])
Date: 2005-09-20 12:51:42


Try setting:

-mca btl_base_include self,mvapi

To specify that only lookback (self) and mvapi btls should be used.

Can you forward me the config.log from your build?


Daryl W. Grunau wrote:
> Hi, I've got a dual-homed IB + GigE connected cluster for which I've built
> a very recent drop of OpenMPI (w/ mvapi support). I'm having difficulty
> making OMPI solely use native verbs as it's communication between nodes.
> I've tried all incantations of the following mca parameters to no avail:
> --mca btl_tcp_if_exclude "lo,eth0,eth1,ib0,ib1"
> --mca ptl_tcp_if_include "lo,eth0,eth1,ib0,ib1"
> Note I'm putting ib in the list because I really don't wish to use IP/IB;
> OMPI should be able to communicate at the native verbs level, right? If I
> leave ib0/1 unconfigured on my host, OMPI uses eth0 for its communication.
> If I bring up ib0, OMPI uses both eth0 and ib0! Is there any way I can
> specify for it to use none of these TCP interfaces? TIA!
> Daryl
> P.s. I can send output of ompi_info if that is helpful.
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