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Subject: Re: legal move generator that is 20 times faster than Crafty

Author: Robert Hyatt

Date: 19:38:08 07/01/01

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On July 01, 2001 at 10:13:56, Uri Blass wrote:

>On July 01, 2001 at 10:08:38, Robert Hyatt wrote:
>
>>On July 01, 2001 at 06:44:23, Uri Blass wrote:
>>
>>>On July 01, 2001 at 05:09:45, stefan wrote:
>>>
>>>>
>>>>see also
>>>>
>>>>http://members.tripod.com/~RyanMack/hypertech.htm
>>>
>>>If it is truth than it seems that we are going to see a progress of more than
>>>200 elo in comp-comp games only because of better software for the PIII
>>>hardware.
>>>
>>>I have not enough knowledge to understand if he is right
>>>
>>>Uri
>>
>>
>>20M nodes per second on a single CPU seems _way_ hard to believe.  The problem
>>is that in most cases, the move generator is far from being the dominant part of
>>the calculation.  In crafty, it is in the 10-15% range.  If you take that to
>>zero, you only run 10-15% faster.  Which leads me to believe that this is a very
>>optimistic estimate on overall speed.
>
>I understood that he was talking also about this significant speed improvement
>with good evaluation function.
>
>We will have to wait to see if he is right.
>
>Uri


I don't see how it will help.  What he is addressing is finding the endpoints
of attack rays from sliding pieces.  That is not a big part of the evaluation.



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