Author: Vincent Diepeveen
Date: 20:40:35 07/08/03
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On July 08, 2003 at 19:37:48, Jeremiah Penery wrote: I sure saw a price of $680 MLN quoted a week ago or so. It was at a conference about supercomputing previous week. Opening of Altix3000. However i need to add a few things. First of all the super computer is located in japan. You quote articles from somewhere in 2002. Sincethen dollar has gone down more than 20%. It is not only located in japan, also paid in Yen. Add a bit more than 20% to that $500mln price and you're at 680. Best regards, Vincent >On July 08, 2003 at 08:37:49, Vincent Diepeveen wrote: > >>On July 08, 2003 at 00:33:09, Jeremiah Penery wrote: >> >>>NEC Earth Simulator has 5120 NEC SX-7(?) vector processors. Total cost was less >>>than $400m. >> >>around $680M it cost. > >Provide a reference for that $680m number, and I might believe you. I don't >accept random numbers without reference. > >Less than $400m is quoted at these sites: >http://www.mindfully.org/Technology/Supercomputer-Japanese23jul02.htm >http://www.siliconvalley.com/mld/siliconvalley/news/editorial/3709294.htm >http://www.time.com/time/2002/inventions/rob_earth.html >http://www-zeuthen.desy.de/~schoene/unter_texte/texte/sc2002/tsld004.htm >http://www.iht.com/articles/98820.html >http://cospa.phys.ntu.edu.tw/aapps/v12n2/v12-2n1.pdf >etc., etc. > >The highest price I've seen is around $500m, nowhere near your number. > >>>Here is a blurb about the chip, from the webpage: >>> >>>"Each AP consists of a 4-way super-scalar unit (SU), a vector unit (VU), and >>>main memory access control unit on a single LSI chip. The AP operates at a clock >>>frequency of 500MHz with some circuits operating at 1GHz. Each SU is a >>>super-scalar processor with 64KB instruction caches, 64KB data caches, and 128 >>>general-purpose scalar registers. Branch prediction, data prefetching and >>>out-of-order instruction execution are all employed. Each VU has 72 vector >>>registers, each of which can has 256 vector elements, along with 8 sets of six >>>different types of vector pipelines: addition/shifting, multiplication, >>>division, logical operations, masking, and load/store. The same type of vector >>>pipelines works together by a single vector instruction and pipelines of >>>different types can operate concurrently." >>> >>>Each chip consumes only about 140W, rather than Vincent's assertion of 150KW. >> >>the 125KW is for Cray 'processors' not fujitsu processors that are in the NEC >>machine. >> >>Ask bob i remember he quoted 500 kilowatt for a 4 processor Cray. So i divided >>that by 4. > >That 500KW was probably for the entire machine. Each processor probably >consumes a very small amount of that. The Earth Simulator uses some 7MW of >power in total, though only about 10% comes from the processors. > >>Trivially Cray machines using the opterons will be consuming less than that. >>Note that the cpu costs is nothing compared to what the routers etc eat. > >Of course.
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