Thanks George!
I've added:
--mca btl_openib_if_include mthca0
--mca btl_openib_warn_default_gid_prefix 0
and hopefully it'll do the right thing without any warnings.
Bill
George Bosilca wrote:
Here are the MCA parameters that you can use:
MCA btl: parameter "btl_openib_if_include" (current value: <none>)
Comma-delimited list of HCAs/ports to be used (e.g.
"mthca0,mthca1:2"; empty value means to use all ports
found).
Mutually exclusive with btl_openib_if_exclude.
MCA btl: parameter "btl_openib_if_exclude" (current value: <none>)
Comma-delimited list of HCAs/ports to be excluded
(empty value
means to not exclude any ports). Mutually exclusive with
btl_openib_if_include.
george.
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 across
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 files,
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 opensm
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-subnet-gid?
Thanks,
Bill
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