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Written by Douglas Eadline
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Wednesday, 23 April 2008 |
If you live or work in the New York/North Jersey Metropolitan area, the
NYCA-HUG (New York City Area HPC Users Group) will be hosting Linux supercomputer vendor SiCortex at our May meeting. (Thursday, May 1 from 7-9PM).
They plan on bringing one of their seventy two core/processor Catapult desktop systems to the Le Figaro Cafe in Greenwich Village. The Catapult, is a true Linux parallel/cluster machine that provides the user with 72 processors with a power draw of only 250Watts. (It can be plugged into a standard electrical service, like those found in the back of a Cafe in Greenwich Village).
When was the last time you had 72 processors at your disposal to create your killer app! For more information, see the NYCA-HUG page. The is meeting will
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Last Updated ( Wednesday, 23 April 2008 )
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Written by Douglas Eadline
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Friday, 11 April 2008 |
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As the Head Monkey around here, I often get questions sent to
me about clusters. I thought it might make sense to share some
of the questions (and answers). Please feel free to comment
and offer your insights as well. Here is today's question.
Question: I am having trouble
finding current information on hyper-threading and clusters, or even
hyper-threading and heavy loads that is not at least 2 years out of date. I
am about to overhaul our engineering cluster and would really like
to find some information on the current state of things before I enable the
HT ability on the cluster. Read on for my answer.
By the way, I'm open to other questions as well. Head on over to
my
contact page and drop me line. I'll also try an reach out
to some of the more seasoned cluster jocks for answers as well.
And finally, you can always post and search the adept
Beowulf Mailing List.
Oh, and try and keep the questions
about HPC clusters.
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Last Updated ( Friday, 11 April 2008 )
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Written by Douglas Eadline
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Thursday, 28 February 2008 |
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Last fall, I had an opportunity to test the new quad-core Intel® Xeon® 5400 processor
(Harpertown) processor. As the Harpertown was in short supply, I only
had two nodes (two sockets on each node for total of 16 cores) with which to run my tests.
I'm not picky, however,
I like to run HPC tests as this type of data is absent in the
mainstream press. In particular, I am most interested in how multi-core and MPI
play in the HPC space. There is plenty to discuss, but for some interesting benchmark numbers, read on.
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Last Updated ( Tuesday, 22 April 2008 )
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Written by Douglas Eadline
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Monday, 18 February 2008 |
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Could there be a more shameless plug?
Back by popular demand, the ARC at Georgetown University has for some strange reason decided to offer my Intermediate Beowulf Administration and Optimization course for a second time this March (18th-20th). The details and background are on the
ARC HPC Training Page. Class size is limited, so if you have interest, sign up early. Course description is below. Excellent donuts.
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Last Updated ( Monday, 18 February 2008 )
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Written by Jeff Layton
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Sunday, 27 January 2008 |
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From the "I'll take eight department"
The Linux cluster world is moving towards InfiniBand for many reasons:
bandwidth, latency, message rate, N/2, price/performance, and other factors
that affect performance and price. But usually it's focused on larger systems, many
times greater 64 nodes up to multiple thousand nodes. At that same time the
reasons for moving to InfiniBand are still valid for smaller clusters,
particularly performance, but the economics are not. Basically InfiniBand is
just too expensive for smaller systems and usually does not make sense from a
price/performance perspective. But that has just changed...
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Last Updated ( Wednesday, 30 January 2008 )
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