Open MPI logo

Open MPI User's Mailing List Archives

  |   Home   |   Support   |   FAQ   |   all Open MPI User's mailing list

Subject: Re: [OMPI users] How to check OMPI is using IB or not?
From: Sangamesh B (forum.san_at_[hidden])
Date: 2010-01-27 05:14:08


Thanks Brett for the useful information.

On Wed, Jan 27, 2010 at 12:40 PM, Brett Pemberton <brett_at_[hidden]> wrote:

>
> ----- "Sangamesh B" <forum.san_at_[hidden]> wrote:
>
> > Hi all,
> >
> > If an infiniband network is configured successfully, how to confirm
> > that Open MPI is using infiniband, not other ethernet network
> > available?
> >
>
> At a low level simplistic way, how about:
>
> [root_at_tango003 ~]# lsof | grep /dev/infiniband
> namd2 7271 weimin mem CHR 231,192
> 8306 /dev/infiniband/uverbs0
> namd2 7271 weimin 13u CHR 231,192
> 8306 /dev/infiniband/uverbs0
> ...
>
> Here i can see that the namd that I compiled with openmpi is using IB.
>
> cheers,
>
> / Brett
>
> --
> Brett Pemberton - VPAC HPC Team Leader
> http://www.vpac.org/ - (03) 9925 4899
> _______________________________________________
> users mailing list
> users_at_[hidden]
> http://www.open-mpi.org/mailman/listinfo.cgi/users
>