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Subject: Re: TSCP and hash and SEE

Author: Dann Corbit

Date: 10:13:18 01/15/04

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On January 14, 2004 at 23:22:46, Russell Reagan wrote:

>On January 14, 2004 at 17:48:06, Dann Corbit wrote:
>
>>An aside:
>>You can get a stupendous speed increase with TSCP by the addition of piece
>>lists.
>
>I added a few bitboards to TSCP to act as piece lists once, and the speedup was
>there, but not stupendous.  Something like 10-20% IIRC. Of course, that's not a
>"real" piece list. You could use a real piece list to speed up the attack
>detection, which is probably one of the most time consuming functions in TSCP.

I bet you still iterated over the board.  The number 64 should almost never
appear in the program.

I got a 4-fold speedup, at least (hashing, piece lists, a few other trinkets).



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