Enrique --
I also recently added a section to the FAQ about TCP optimization.
It's a bit sparse at the moment, but please feel free to pester us with
questions -- whenever we see good questions, we add them to the FAQ!
http://www.open-mpi.org/faq/?category=tuning
http://www.open-mpi.org/faq/?category=tcp
Be sure to look at the TCP BTL parameters that are available:
ompi_info --param btl tcp
Many of them are still lacking descriptions, so, again, feel free to
pester us with questions. :-)
On Nov 16, 2005, at 5:23 PM, Enrique Curchitser wrote:
Thank you. It did the trick! Now on to optimizing the communications
over gig-ethernet.
_________________
Enrique Curchitser
ec...@columbia.edu
On Nov 16, 2005, at 4:29 PM, Troy Telford wrote:
On Wed, 16 Nov 2005 14:16:20 -0700, Enrique Curchitser
<ec...@columbia.edu> wrote:
Hi,
I put together a small cluster (4 computers) which has one head node
that sees the world
and 3 that are on a private network. If I want to use the head node
(which has 2 NICs)
as part of the ring, how do I tell it to go over the NIC that is part
of the private network?
In mpich, there is a modification to the hostfile, but I did not see
any such thing with OpenMPI
Here's an entry from an earlier post to this list (in the archives)
that I
believe applies:
http://www.open-mpi.org/community/lists/users/2005/11/0337.php
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{+} The Open MPI Project
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