There are multiple ways to set MCA parameters - you can checkout the
FAQ to see all of them:
http://www.open-mpi.org/faq/?category=tuning#setting-mca-params
In your immediate case, just add -mca
btl_openib_warn_default_gid_prefix 0 to your cmd line.
Ralph
On Dec 8, 2008, at 1:49 AM, Yasmine Yacoub wrote:
Good morning,
I have explain my problem lat time and still I haven't receive any
response.
ok, my problem is that after installing pwscf and running one scf
example, I got the output but with this warning message :
WARNING: There are more than one active ports on host
'stallo-2.local', but the
default subnet GID prefix was detected on more than one of these
ports. If these ports are connected to different physical IB
networks, this configuration will fail in Open MPI. This version of
Open MPI requires that every physically separate IB subnet that is
used between connected MPI processes must have different subnet ID
values.
Please see this FAQ entry for more details:
http://www.open-mpi.org/faq/?category=openfabrics#ofa-default-subnet-gid
NOTE: You can turn off this warning by setting the MCA parameter
btl_openib_warn_default_gid_prefix to 0.
So, please how can I turn off this warning? I have already tried to
follow the steps indicated in the link above but it doesn't work.
what is exactly the command I have to use?
Thanks,
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