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Subject: Re: SPEED !!!!!

Author: Dann Corbit

Date: 11:46:03 06/17/02

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On June 17, 2002 at 14:31:51, Adriano Bedeschi de Souza wrote:

>On June 17, 2002 at 13:17:32, Sune Fischer wrote:
>
>>On June 16, 2002 at 22:42:02, Adriano Bedeschi de Souza wrote:
>>
>>>I need help!
>>>
>>>I am writing a chess engine and i have some doubts.
>>>My main doubt is about speed, i have coded all the program based in Bitboards,
>>>they r working properly but the speed is a lot bad! It makes less than 2000
>>>nodes per second !!!!
>>>
>>>note: i am using alpha-beta search, transposition table and iterated
>>>deepening...
>>>
>>>Adriano Bedeschi de Souza
>>>adriano.bedeschi@poli.usp.br
>>>uin 58144572
>>
>>Well off the top of my head:
>>How are you generating the bitboards?
>>How are you counting the nodes?
>>Do you dynamicly allocate anything during search?
>>Do you "pass by value"?
>>
>>-S.
>
>
>=)
>I pass by reference
>I am counting the nodes properly =) no doubt
>I dont use dynamic allocation
>My bitboard generation is based in http://www.galahadnet.com/chess/chessprg/
>
>and before u ask, i am no using a 286 =)
>(its a k6-2 450)

That model should be plenty fast.
Are you compiling in release mode?
What compiler are you using?

I should expect your generation rate to be 100x what it is right now, at least.



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