Author: Robert Hyatt
Date: 07:58:40 12/31/02
Go up one level in this thread
On December 31, 2002 at 08:47:37, Frank Phillips wrote: >On December 30, 2002 at 19:25:09, Vincent Diepeveen wrote: > >>On December 30, 2002 at 13:34:31, Frank Phillips wrote: >> >>>On December 30, 2002 at 11:33:18, Vincent Diepeveen wrote: >>> >>>>On December 30, 2002 at 05:26:32, Graham Laight wrote: >>>> >>>>>See http://www.talkchess.com/forums/2/message.html?54285 in the other forum. >>>>> >>>>>-g >>>> >>>>it is vector CPU's. Not comparable with cpu's that do things like computerchess >>>>at all. So for computerchess that machine isn't that fast at all. >>> >>>Wasn't the Cray a vector machine? Running Cray Blitz by Hyatt et al. >> >>Yes. 16 processors in total got him to about 500k nodes a second. >> >>I do not know what Mhz Cray Blitz ran on. But probably Hyatt can enlighten >>us about it. >> >>However for matrix calculations and such that Cray was >>considerably faster than it was for Cray Blitz. >> >>Then you'll see the Cray didn't do that impressive for each >>Mhz whereas it was a lot more impressive for vector processing. >> >>Compare both Mhz of todays x86 with the Cray times 16 back then >>and the vector power versus todays x86 and you'll know what we are >>speaking about. >> >>Best regards, >>Vincent > > >No I cannot. I can see that it might be slower MHz for MHz, but given its >awesome speed (35 trillion calculations per second) I would have thought it >would be a very strong chess machine, particularly if the program was written >with vector processing in mind. > >Frank Of course it would. But you have to: (1) be willing to expend the effort; (2) understand vector processing or else put forth the effort to figure out how it might apply to chess; (3) not write everything off as "impossible" just because you don't know how to do it _now_. (4) be willing to spend a lot of time "getting into vector processing mode" and learn how to use it effectively. It is just like "getting into bitmaps". _some_ are simply incapable of doing so...
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