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Subject: Re: Sorting out the Wccc99 Hardware

Author: Vincent Lejeune

Date: 03:12:56 06/14/99

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On June 14, 1999 at 02:00:20, Howard Exner wrote:

>On June 13, 1999 at 19:26:40, Vincent Lejeune wrote:
>
>>On June 13, 1999 at 19:02:18, Howard Exner wrote:
>>
>>>Here's a request about the different hardware that will be used
>>>at the upcoming WCCC. Once the hardware is listed for each program
>>>could some kind soul sort it out in terms of chess computational strength.
>>>The single processor variety of Intel and AMD I'm ok with but
>>>have no clue on the Quad Xeon. How does a Quad Xeon compare to
>>>a p3-500 for chess speed? Could someone also put into perspective how much
>>>faster the big hardware(Cilkchess for example) is compared to the single
>>>processors?
>>
>>A Pentium Xeon processor is about 10 % faster than Pentium for chess programs
>>(at same frequency)
>>
>>It's not easy to estimate the power of Quad because it depend on quality of
>>parallelisation of the algorithm ... Quad can produce between 2.5x and 3.5x
>>speed up
>
>Poor programmers. It's not enough that they have to tweak their software,
>now they have to fiqure out smart ways to squeeze out the the full potential
>of parallel processing techniques.

It's a part of tweaking software : where split the tree and ensure that there's
no bug (very difficult thing as some programmers have reported)
The hardware give a 3.95% speed improvement but technical difficulties (mainly
splitting the tree) can't produce this 3.95x in node/second ...



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