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From: Troy Telford (ttelford_at_[hidden])
Date: 2006-04-12 11:49:23


Disclaimer: This isn't a support request per se; just gathering data.

I'm able to compile Open MPI when SilverStorm's Linux IB drivers are being
used (using the MVAPI device).

However, it doesn't really work.

A simple 'hello world' that simply returns the MPI rank seems to work
fine, but whenever I try to do anything interesting with MPI (even
something as common as linpack), nothing happens-- literally. No error
messages, no work done; even the CPU utilization is zero. All the nodes
have PIDs, orted daemons, etc. for the job, but the utilization from them
is zero.

SilverStorm's IB stack is apprently close enough to MVAPI to compile, but
not close enough to work. Has anybody had any success with SilverStorm's
Linux drivers with Open MPI?

Again, I'm not really asking for somebody to make it to work, or for any
development; but if there is a near zero effort method somebody knows of
to get it to work, I'd be interested. Beyond that... well, the 2nd gen
OpenIB.org drivers are on the horizon...

-- 
Troy Telford