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Subject: Re: Japan Has The World's Fastest Supercomputer

Author: Vincent Diepeveen

Date: 16:25:09 12/30/02

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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







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