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Subject: Re: Speedups for BitBoard programs on 64-bit machines

Author: Robert Hyatt

Date: 07:25:25 06/06/02

Go up one level in this thread


On June 05, 2002 at 17:31:45, Gerd Isenberg wrote:

>On June 05, 2002 at 13:22:30, Vincent Diepeveen wrote:
>
>>On June 05, 2002 at 04:14:41, Gerd Isenberg wrote:
>>
>>Gerd, a 33% speedup isn't much if you first slow down 2 times.
>>Right now the crafty datastructure is exactly 2 times slower doing
>>what i can do without bitboards.
>>
>
>Vincent, if, as you claim, bitboarders are two times slower per se on 32bit
>hardware, then i expect a speedup of >= 100% with bitboards on 64bit hardware.
>
>Gerd


This argument goes in circles, because he also claims they are not very
good on 64 bit machines either...



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