[rescue] Compaq Proliant 8000
pat at computer-refuge.org
Thu Apr 29 00:54:48 CDT 2004
On Thursday 29 April 2004 00:10, Dave McGuire wrote:
> On Apr 29, 2004, at 1:06 AM, Nick wrote:
> > Question for you, does AMD Opteron count as "x86"?
> I think the jury is still out on that one, at least for me. I'd
> lean toward yes, though, because people seem to be building nothing
> but ordinary shit PCs with them so far.
What about the Octigabay 12K... aka Cray XD1? That's an interesting
machine... and definately NOT a shit PC. When I talked to the
president of Octigabay at SC2003 (SuperComputing conference in
Phoenix), I was quite impressed with what they'd done with them.. and
that he was well versed in the technical aspects (aka not a PHB). The
machines were supposed to be about $150k list for a single chassis with
6 processor pairs and a couple (4?) of PCI-esque slots.
I can't quote numbers, but they had AWESOME latency numbers - better
than even Quadrics - and were still not at their goal yet.
And their "maximum machine size" was quite impressive too, IIRC, 1024 of
the chassis for a total of 12K processors max.
Now, that's pretty damn awesome. They're priced just a bit high,
Another company, which was giving out tape measures at the conference
(can't remember who at the moment), was showing off a really nicely
designed quad Opteron system, which I think was about $20k list. They
payed attention to airflow, PCI busses, expandability, chassis design,
and memory slots. It's the only quad Opteron I've seen so far that has
all 16 possible DIMM slots (4 per processor) actually put on the board.
Opteron is here, and in a big way I think. It amuses me that for once
Intel is playing catch-up to AMD, adopting a near exact copy of the
x86-64 architecture, and calling it "64bit extentions for Xeon".
Except, of course, Intel has left out the execute permission bit from
their MMU, so that you still can execute the stack frame and data areas
on their chips, an important feature for Microsoft Windows to be able
to spread virii. :-/
Of course, there's still the "shit PC" Opertons aimed at people who want
to play g4m3z on them and do "b0x m0dz" by putting a window and cold
cathode flourescent lamp in the machine. Or untrustworthy cluster
building companies like PSSC... (short story: very dissatisfied
customer. Avoid them like they're a strain of the Black Plague that
emmits 1MeV neutrons.)
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