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Subject: Re: [OMPI devel] open ib dependency question
From: Pavel Shamis (Pasha) (pasha_at_[hidden])
Date: 2008-07-10 11:17:11


FYI the issue was resolved - https://svn.open-mpi.org/trac/ompi/ticket/1376
Regards,
Pasha

Bogdan Costescu wrote:
> On Thu, 3 Jul 2008, Pavel Shamis (Pasha) wrote:
>
>> I had similar issue recently. It will be nice to have option to
>> disable/enable *CM via config flags.
>
> Not sure if this is related... I am looking at using a nightly 1.3
> snapshot and I get this type of error messages when running:
>
> [n020205][[36506,1],0][connect/btl_openib_connect_ibcm.c:723:ibcm_component_query]
> failed to open IB CM device: /dev/infiniband/ucm0
>
> which is actually right, as /dev/infiniband on the nodes doesn't
> contain ucm0. On the same cluster, OpenMPI 1.2.7rc2 works fine; the
> configure options for building them are the same.
>
> The output of ldd shows for the binary linked with 1.3a:
>
> libibcm.so.1 => /opt/ofed/1.2.5.4/lib64/libibcm.so.1
>
> while this is missing from the binary linked with 1.2. Even after
> printing these messages, the binary linked with 1.3a works; it works
> even when I specify "--mca btl openib,self" so I think that the IB
> stack is still being used (there is also a TCP/GigE network which
> could be chosen otherwise).
>
> I don't know whether this is caused by a somehow inconsistent setup of
> the system, but I would welcome an option to make 1.3a behave like 1.2.
>