[mvapich-discuss] Running latency tests

[wei huang]

Hi Chris,

It seems that some ib libraries are not in your default path. You may need
to explicitly export the path to ib library in your environmental
variables (bash profile or similar places). To find where those libraries
are, you may try to see /etc/infiniband/info file. Or you can ask your
system administrator about the path.

Thanks.

Regards,
Wei Huang

774 Dreese Lab, 2015 Neil Ave,
Dept. of Computer Science and Engineering
Ohio State University
OH 43210
Tel: (614)292-8501


On Thu, 10 Apr 2008, Dhabaleswar Panda wrote:

> ---------- Forwarded message ----------
> Date: Wed, 9 Apr 2008 20:01:00 -0400
> From: Christopher Tanner <christopher.tanner at gatech.edu>
> To: mvapich-discuss at cse.ohio-state.edu
> Subject: [mvapich-discuss] Running latency tests
>
> All -
>
> I believe I am gravy with the mvapich2 install so now I'm trying to
> run the latency tests to see if it's really working. But, I'm a dummy
> and can't get it to work. Here's what I've done so far:
>
> a) Initiated a mpd ring with 16 hosts (i.e. mpdboot --rsh=rsh -n 16
> -1). I have multiple processors, each with multiple cores on each
> node, thus the '-1'.
> b) Compiled osu_latency.c using mpicc (to an executable called
> osu_latency)
> b) Tried to execute the compile file via 'mpiexec -machinefile
> machine.list -n 16 ./osu_latency'
>
> I receive the following error (16 times naturally) ::
> ./osu_latency: error while loading shared libraries: librdmacm.so.1:
> cannot open shared object file: No such file or directory
>
> I don't know where this file would be -- it's not in the /usr/lib with
> all of the other *.so.* files.
> Any thoughts? Thanks.
>
> -------------------------------------------
> Chris Tanner
> Space Systems Design Lab
> Georgia Institute of Technology
> christopher.tanner at gatech.edu
> -------------------------------------------
>
>
>
> On Apr 9, 2008, at 2:17 PM, Matthew Koop wrote:
> > Hi Fred,
> >
> > If InfiniBand is not working then the job will not run. There is
> > currently
> > no method by which it will fall back to TCP/IP.
> >
> > Does this answer your question?
> >
> > Matt
> >
> > On Wed, 9 Apr 2008, Stecher, Fred wrote:
> >
> >> Hi,
> >> When I installed MVAPICH, I used the default. If Infiniband is not
> >> working will my executable still run?
> >>
> >> Thanks,
> >>
> >> Fred
> >>
> >>
> >
> > _______________________________________________
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> > mvapich-discuss at cse.ohio-state.edu
> > http://mail.cse.ohio-state.edu/mailman/listinfo/mvapich-discuss
>
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