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Subject: Re: Computer Hardware Performance

Author: Uri Blass

Date: 00:22:14 03/29/02

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On March 28, 2002 at 17:34:17, Gian-Carlo Pascutto wrote:

>On March 28, 2002 at 16:35:09, Uri Blass wrote:
>
>>I understand that it is not truth but you do not need to run
>>1000 games in order to check if the computer is 3-10% slower
>>that is translated to a loss of 3-10 points.
>>
>>If you do a change in the evaluation function then you may need
>>1000 games in order to know if the program is better or worse but
>>if you do a change that only change the speed of the program and not the
>>evaluation or the search rules then
>>the best way to test is not to play games.
>>
>>You can simply give the program to solve a test suite
>>in order to check if it needs more or less time to do it.
>
>You do not need to play 1000 games to see that your computer is slower.
>
>You do need (approximately) such a great amount of games to positively
>know the difference in speed generates an elo difference of 3-10 points.
>
>--
>GCP

Being 100% faster means difference of 30-100 elo
for all chess programs(except cases of bugs).

It means that being 7% faster means differnce of 3-10 elo
for all pchess rograms(I use the approximation 1.07^10=2)

Uri



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