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dj604
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Joined: 30 Mar 2004
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PostPosted: Thu Aug 19, 2004 3:59 am    Post subject: Linux on a Cray? Reply with quote

Ok, I don't own a cray, but I was thinking...

I see the prices for cray supercomputers getting affordable (relatively) on ebay, and wonder... as cray computers (and other older supercomputers in general) get obsolete for their original purposes, would porting linux/gentoo/etc to them be feasible?

how does a cray x-mp or y-mp compare with today's computers? surely they could be made into some sort of monstrosity of a webserver or something like that, right? :)

anyone?
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exeter
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PostPosted: Thu Aug 19, 2004 4:14 am    Post subject: Reply with quote

According to this page, a given the right problem, a small Beowulf cluster of P4's would pwnz0r a 4 proc. Y-MP EL.

BTW, I don't know if Linux is ported to that machine, but I bet NetBSD is. :-)
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grnchile
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PostPosted: Thu Aug 19, 2004 5:02 am    Post subject: Reply with quote

So... How much power does one of these things take? Can you even run it off of readily available residential power? I'd thought that the one I used to use (an X-MP, I think) required 60,000 watts and a special connection to the power grid.

Are they not including UNICOS? Seems pretty cheap of them... :)
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dj604
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PostPosted: Thu Aug 19, 2004 3:57 pm    Post subject: Reply with quote

some of them come without harddrives, so you'd have to find the drives (i'm assuming they're probably standard-ish scsci drives, but maybe i'm wrong) and install an os yourself.

There are some models of crays that can run 110v power and can be used at home. I can't remember the model names offhand.

And as far as I can tell from their webpage, netbsd hasn't been ported yet :)
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stonent
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PostPosted: Sun Sep 12, 2004 9:19 am    Post subject: Reply with quote

Crays used Alpha cpus for a while. I think the T series did. I'm not so sure about the new ones.

There was an interesting one called the Cray CS6400 which ran 64 SuperSparc cpus and ran "Cray Solaris"
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