Here are the MCA parameters that you can use:
MCA btl: parameter "btl_openib_if_include" (current value:
Comma-delimited list of HCAs/ports to be used (e.g.
"mthca0,mthca1:2"; empty value means to use all
Mutually exclusive with btl_openib_if_exclude.
MCA btl: parameter "btl_openib_if_exclude" (current value:
Comma-delimited list of HCAs/ports to be excluded
means to not exclude any ports). Mutually
On Feb 21, 2008, at 2:45 PM, Bill Wichser wrote:
> In trying to get openmpi up and running on a new cluster, I came
> this error about having both of my IB switches set to the same
> subnet-gid. Snooping around on my hosts which run the opensm
> daemon, I
> indeed found this to be the case in the /var/log/osm-ib[0-1].log
> giving up finding it with ibstat which showed these values to be
> different, at least the second part of the GID.
> Before I try and pursue how to actually change this value for the
> daemon, I do have a question.
> Since both of my hosts are connected to each switch, how am I to
> instruct openmpi to use port0? I'm trying to use port0 as the MPI
> network and port1 as the storage network. Is there something that I
> need to add someplace forcing connections only to some default-
> users mailing list
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