[rescue] Cheapest Cray?
mcguire at neurotica.com
Mon Apr 26 12:57:55 CDT 2004
On Apr 26, 2004, at 1:04 PM, Charles Shannon Hendrix wrote:
>> In some cases, yes. The machines have backplanes, and CPU & memory
>> modules fit into slots. You can snag those modules (be they boards
>> like in the EL or big metal "subchassis" like in the J90) from one
>> machine to put 'em in the other. That's what I did with a J90 that I
>> bought a couple of years ago...used it to expand my existing one and
>> have some spare power supplies, backplane, and rack components. I
>> don't like buying vendor maintenance contracts. :)
> What do you do with your J90?
Well, as I've mentioned several times, absolutely nothing right
now...it's powered off until my income increases to something more
When I was running it 24x7 (which I did for about a year and a half),
I used it for teach myself about vector processing and how to write
code for vector processors, to learn about the Cray compilers, and to
learn how to run the machine from a sysadmin point of view (a typical
supercomputer doesn't exactly print an Award BIOS copyright message,
count up it's memory, and boot when you turn it on).
When I became comfortable with the use of the machine, I used it to
prototype the image processing algorithms used in a commercial digital
video security/motion detection system I developed.
I also worked on a project with a friend of mine to write a
pseudo-vectorized implementation of the RC5 algorithm (back with the
bovine.net RC5 contest was relevant), and while we got most of the way
there, it was never finished.
Dave McGuire "PC users only know two 'solutions'...
Cape Coral, FL reboot and upgrade." -Jonathan Patschke
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