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From: Nick Maclaren on 3 Apr 2008 04:01 In article <DuqdnavI0b-KEWnanZ2dnUVZ8uidnZ2d(a)giganews.com>, Terje Mathisen <terje.mathisen(a)hda.hydro.com> writes: |> |> > Also, the great unknown is whether you can get a higher proportion |> > of its theoretical peak out of it than you can on dual-socket, |> > quad-core Intel systems. That is the key to whether it is a good |> > buy or a bad one - plus its price, of course. |> |> Price is the really important consideration: Agreed. |> Currently StatoilHydro has around 20 TF (afair) in its seismic clusters, |> and the machine rooms have been through the needed refit to handle the |> cooling issue. Not everyone has that option. I was one of the first people to hit this hard, but a lot of sites are limited by cooling and/or power or space. They quite simply CAN'T upgrade for less than a cost that would make any plausible computers look cheap. For example, some of the finance houses located in central London, New York etc. are like that; and their available budget makes salesmen drool :-) So there is still a significant market even without the price factor. But I agree that performance/Euro will sell more than performance/watt, performance/sq.m. or performance/Kg. Regards, Nick Maclaren.
From: Paul A. Clayton on 3 Apr 2008 11:18 On Apr 2, 8:24 pm, "Chris Thomasson" <cris...(a)comcast.net> wrote: > "Nick Maclaren" <n...(a)cus.cam.ac.uk> wrote in message > > news:ft0fhe$7qg$1(a)gemini.csx.cam.ac.uk... > > > > > It looks interesting, but will it succeed? Any serious or even > > humorous comments on it appreciated. > > Very cool! Do you happen to know if they provide an ISA manual and an > assembler? I assume I can use POSIX and C because it runs Linux. I am > interested in the semantics of the assembly instructions that drive their > DMA engines.. I think it would be neat to be able to design custom > message-passing frameworks for this beast. The processors themselves are MIPS64, so a trip to www.mips.com (last time I tried, one had to get an account and log in, zero financial cost, modest bother) can get you the ISA information. According to the limited documentation I have read, the DMA is not exposed; they suggest the use of their MPI implementation. Hope that was helpful. Paul A. Clayton reachable as 'paaronclayton' at "embarqmail.com"
From: Tim McCaffrey on 3 Apr 2008 11:41 In article <ft0fhe$7qg$1(a)gemini.csx.cam.ac.uk>, nmm1(a)cus.cam.ac.uk says... > > >It looks interesting, but will it succeed? Any serious or even >humorous comments on it appreciated. > Considering the location, is this where one of the lost tribes of DEC ended up? - Tim
From: Nick Maclaren on 3 Apr 2008 11:50 In article <ft2tr5$8q9$1(a)USTR-NEWS.TR.UNISYS.COM>, timcaffrey(a)aol.com (Tim McCaffrey) writes: |> > |> >It looks interesting, but will it succeed? Any serious or even |> >humorous comments on it appreciated. |> > |> Considering the location, is this where one of the lost tribes of DEC ended |> up? Apparently Apollo, but they have have travelled through DEC first, and may have picked up some people on the way :-) Regards, Nick Maclaren.
From: Tim McCaffrey on 3 Apr 2008 11:51
In article <ft2tr5$8q9$1(a)USTR-NEWS.TR.UNISYS.COM>, timcaffrey(a)aol.com says... > >In article <ft0fhe$7qg$1(a)gemini.csx.cam.ac.uk>, nmm1(a)cus.cam.ac.uk says... >> >> >>It looks interesting, but will it succeed? Any serious or even >>humorous comments on it appreciated. >> >Considering the location, is this where one of the lost tribes of DEC ended >up? > > - Tim > And to followup, Google Earth shows they are in or right next to The Mill. - Tim |