On Jul 4, 2007, at 8:21 PM, Graham Jenkins wrote:
> I'm using the openmpi-1.1.1-5.el5.x86_64 RPM on a Scientific Linux 5
> cluster, with no installed HCAs. And a simple MPI job submitted to
> that
> cluster runs OK .. except that it issues messages for each node
> like the
> one shown below. Is there some way I can supress these, perhaps by an
> appropriate entry in /etc/openmpi-mca-params.conf ?
>
> --
> libibverbs: Fatal: couldn't open sysfs class 'infiniband_verbs'.
> ----------------------------------------------------------------------
> ----
> [0,1,0]: OpenIB on host localhost was unable to find any HCAs.
> Another transport will be used instead, although this may result in
> lower performance.
Yes, there is a line you can add to /etc/openmpi-mca-params.conf:
btl=^openib
will tell Open MPI to use any available btls (our network transport
layer) except openib.
Hope this helps,
Brian
--
Brian W. Barrett
Networking Team, CCS-1
Los Alamos National Laboratory
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