On Apr 12, 2006, at 9:49 AM, Troy Telford wrote:
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...
We've tested against the SilverStorm drivers for OS X with success,
but I don't think anyone has tried the Linux drivers. A quick poll
of the developers show that none of us has access to a Linux cluster
using the SilverStorm stack, so we can't really look too deeply at
the problem. If you compile with --enable-debug, are there any error
messages that show up?
Brian
--
Brian Barrett
Open MPI developer
http://www.open-mpi.org/
