[Beowulf] Nehalem Xeons lest think about 6 core Dunningtons ifjust drool factor
tom.elken at qlogic.com
Wed Oct 15 09:07:59 PDT 2008
> [mailto:beowulf-bounces at beowulf.org] On Behalf Of Mark Hahn
> > If you really want to drool then Intel's new 6 CORE
> nah. to me, it's just a density play - nothing wrong with that,
> but not really interesting. if you have small-memory,
> cache-friendly code,
> you'll be happy, but putting 6 cores on the same old tired memory
> is not what I'd call an HPC solution.
To support Mark's statement, at this page,
you can enter '6' in the "# Cores Per Chip " field
and hit the "Fetch Results" button at the bottom.
You will see 36 results as hits -- I think they are all Dunnington. The
more interesting are the "CINT2006 Rates" and "CFP2006 Rates" as you
I think that some of the Integer Rate results are records or near
records for x86_64 compatible machines, at least for 4-CPU (4 socket)
I think the FP Rate results are very good, but not quite at the level of
some 4-socket, 16-core AMD Barcelona results. Since FP is more relevant
for HPC (not that INT is totally irrelevant), this supports Mark's
> iirc, the 6-core chips
> are also
> quite big/expensive.
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