[Beowulf] Maximizing intra-node communication performance

Vincent Diepeveen diep at xs4all.nl
Wed Dec 28 13:00:27 PST 2005

Are you looking for a hardware solution (so paying money to get some
great inter-node performance) or searching for a software solution
that's better than MPI?

The first costs some money, but with great certainty reduces your

The second will be years of experimental software, bugs and if you're lucky
it's 1% better. 

How much improvement do you need and on what area?

Did you install some SSI type solution also?

That might be a performance killer.


At 12:05 27-12-2005 +0200, Tahir Malas wrote:
>Hi all,
>Taking advice from a previous discussion, we have purchased an Tyan server
>with 8 dual-core Opteron 870 processors. Now I want to wonder how I can
>maximize the intra-node communication of the server. We have been using
>LAM-MPI, but I think that TCP/IP protocol may degrade the performance. Has
>anybody tried new implementations of MPI, or anybody knows some other
>support for intra-node communication?
>Thanks in advance,
>Tahir Malas
>Bilkent University 
>Electrical and Electronics Engineering Department
>Phone: +90 312 290 1385 
>Beowulf mailing list, Beowulf at beowulf.org
>To change your subscription (digest mode or unsubscribe) visit

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