Open MPI logo

Open MPI Development Mailing List Archives

  |   Home   |   Support   |   FAQ   |   all Development mailing list

From: Peter Kjellstrom (cap_at_[hidden])
Date: 2007-05-11 03:59:26

On Thursday 10 May 2007, Jeff Squyres wrote:
> On May 10, 2007, at 8:08 AM, Peter Kjellstrom wrote:
> > I recently tried ompi on early ConnectX hardware/software.
> > The good news, it works =)
> We've seen some really great 1-switch latency using the early access
> ConnectX hardware. I have a pair of ConnectX's in my MPI development
> cluster at Cisco, but am awaiting various software pieces before I
> can start playing with them.

Yes, I'm impressed too.

> We're also quite excited to add some of the new features of the
> ConnectX hardware (Roland Dreier is working on the verbs interface
> and Mellanox is working on the firmware).

I just switched my testbed from mellanox stack to Rolands mlx4.

> I don't see Mellanox's
> presentation from last week's OpenFabrics Sonoma Workshop on the
> web site that describes the features; I'll ping them
> and ask where it is.
> > However, ompi needs a chunk of options set to recognize the
> > card so I made a small patch (setting it up like old Arbel
> > style hardware).
> Good point; I can't believe we forgot to commit that... Thanks!
> BTW, you copied from the MTU from Sinai, not Arbel -- is that what
> you meant?

Just me being confused, I did use 2048 (Sinai) but who am I to say what those
figures should finally be set to...


> (FWIW: the internal Mellanox code name for ConnectX is Hermon,
> another mountain in Israel, just like Sinai, Arbel, ...etc.).

  • application/pgp-signature attachment: stored