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Subject: Re: BitBoard flop

Author: Robert Hyatt

Date: 06:43:01 02/03/00

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On February 02, 2000 at 21:57:27, Michael Neish wrote:

>
>Excuse me if I gripe.  I just spent two months converting my program to
>bitboards and when I finally removed all the obvious bugs I find it's searching
>about 30% slower than the original routine, which just used simple arrays and
>loops to generate moves, a la TCSP.
>
>So where does the magic of bitboards come alive?  It's certainly not in my case.
>
>Cheers,
>
>Mike.

I have answered this before.  It "comes alive" after you learn how to use the
idea.  Two months isn't nearly enough time.  Until you think "bit parallel" you
write a traditional program using an ineffecient data structure.  Once you get
into bitboards, you begin to find faster or alternative ways to do thing...



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