On Sep 22, 2004, at 3:04 AM, Jeff Squyres wrote:
> It looks like we left out some magic IB keywords in the LAM v7.1
> release notes. We used a feature of the IB drivers called "shared
> completion queues" which did not appear in the Mellanox VAPI stack
> until their version 3.0. We tested and developed the LAM IB RPI with
> Mellanox VAPI v3.2.
We actually got a correction from Mellanox on this -- forget what I
said about shared completion queues. :-)
My statement about our tests with Mellanox VAPI 3.2 are still correct,
though: that's where we did the vast majority of our testing and
development. YMMV with other stacks.
We did find one little buglet during the IB setup in MPI_INIT that
would cause some failures (or hanging) on other IB stacks, and we've
rolled a 7.1.1b2 tarball with this fix. This fix should hypothetically
enable LAM to work on other IB stacks, too.
http://www.lam-mpi.org/beta/
And we'll only ever need 640k for any conceivable application, right?
;-)
--
{+} Jeff Squyres
{+} jsquyres_at_[hidden]
{+} http://www.lam-mpi.org/
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