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Subject: Re: [OMPI devel] RFC: Linuxes shipping libibverbs
From: Gleb Natapov (glebn_at_[hidden])
Date: 2008-05-23 02:54:17

On Thu, May 22, 2008 at 04:19:05PM -0400, Jeff Squyres wrote:
> On May 22, 2008, at 4:07 PM, Dirk Eddelbuettel wrote:
> > Is there a test I could run for you?
> Can you see if /dev/infiniband exists? If it does, the OpenFabrics
> kernel drivers are running. If not, they aren't.
Either that or udev in not configured properly.

> > Also, if this test depends on the Debian kernel packages, then we're
> > back to square one as some folks (like myself) run binary kernels,
> > other may just hand-compile and this test may not work as we may miss
> > the 'Debian trigger' in those cases.
> The OpenFabrics kernel drivers are implemented as kernel modules, so
> it's mainly just a question of loading them it to start them running.
> For example, in the official OFED distribution, it comes with /etc/
> init.d/openibd -- "start" loads the kernel modules and does all the
> necessary initialization, "stop" unloads everything, etc.
ib_core/mthca/mlx4 should be loaded automatically by hotplug if HW is
present. No need for any additional configuration.