Author: Robert Hyatt
Date: 19:16:28 07/26/00
Go up one level in this thread
On July 26, 2000 at 12:01:40, Chris Carson wrote: >On July 26, 2000 at 11:48:25, Albert Silver wrote: > >>On July 26, 2000 at 01:35:40, Ed Schröder wrote: >> >>>On July 25, 2000 at 19:45:11, Dave Gomboc wrote: >>> >>>>On July 25, 2000 at 17:29:34, Ed Schröder wrote: >>>> >>>>>On July 25, 2000 at 16:54:39, Alvaro Polo wrote: >>>> >>>>>>I worked for IBM as a scientist at the IBM Scientific Center in Madrid. I would >>>>>>very much more trust Hsu's number than "official IBM" numbers. PR's and >>>>>>marketers at IBM are not stupid people (my father was a country general manager >>>>>>there), they are on the contrary very intelligent, but they don't care that much >>>>>>about scientific exactness in documents directed to the general public. They >>>>>>probably wouldn't understand very well, for example, why the difference between >>>>>>256 and 480 processors is significant. >>>>>> >>>>>>Alvaro >>>>> >>>>>With all respect to your opinion I believe that P/R people very well >>>>>understand the value of numbers. If they don't they would do a very >>>>>poor job which I find hard to believe. >>>>> >>>>>Ed >>>> >>>>That was quite a statement from Alvaro. :) >>>> >>>>In any case, DB2 had 480 chess processors, not 256. >>>> >>>>Dave >>> >>>Sigh. From the IBM pages again: >>> >>> "The latest iteration of the Deep Blue computer is a 32-node >>> IBM RS/6000 SP high-performance computer, which >>> utilizes the new Power Two Super Chip processors >>> (P2SC). Each node of the SP employs a single >>> microchannel card containing 8 dedicated VLSI chess >>> processors, for a total of 256 processors working in >>> tandem. The net result is a scalable, highly parallel system >>> capable of calculating 60 billion moves within three minutes, >>> which is the time allotted to each player's move in classical >>> chess." >>> >>>It says 256 processors. The URL: >>> >>>http://www.research.ibm.com/deepblue/meet/html/d.3.2.html >>> >>>Then look at the logo, it says the re-match. So 256 processors. >>> >>>Ed >> >>Well, according to the horse's mouth, these are the very first lines (including >>the title) of his article published in IEEE/1999: >> >>"IBM?S DEEP BLUE CHESS >>GRANDMASTER CHIPS >> >>THE IBM DEEP BLUE SUPERCOMPUTER THAT DEFEATED WORLD CHESS >>CHAMPION GARRY KASPAROV IN 1997 EMPLOYED 480 CUSTOM CHESS CHIPS. >>THIS ARTICLE DESCRIBES THE DESIGN PHILOSOPHY, GENERAL ARCHITECTURE, >>AND PERFORMANCE OF THE CHESS CHIPS, WHICH PROVIDED MOST OF DEEP >>BLUE?S COMPUTATIONAL POWER." >> >> Albert Silver > >Albert, > >Did the article discuss NPS? I do not think it matters, but I am >interested in what it says (NPS vs NPS means nothing). Also, which >IEEE journal is this, I assume the publication that goes to all members, >however, there are several IEEE societies and each has a different >tech journal. Do you have the month? Thanks in advance if you can >supply this information. I will be a the library later this week doing >part of a literature search and I may try to find this article (during >a break). > >Best Regards, >Chris Carson I _believe_ it was IEEE Micro, March 1999. But I am not at the office and am not sure. Don't go ballistic if that is wrong...
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