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Subject: Re: Fruit 1.0 64-bit

Author: Fabien Letouzey

Date: 05:34:42 03/26/04

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On March 26, 2004 at 08:14:41, Slater Wold wrote:

>On March 26, 2004 at 04:26:03, Fabien Letouzey wrote:
>
>>On March 26, 2004 at 01:30:02, Slater Wold wrote:
>>
>>>32-bit: 907,446 N/sec (20s from starting position)
>>>
>>>64-bit: 816,815 N/sec (20s from starting position)
>>>
>>>/O2, /Ot, /Og, /Ob2
>>>
>>>
>>>If you're wondering, Fruit is not a bitboard program.  :)
>>
>>Is this slow-down thing an isolated case?
>>
>>Fabien.
>
>Do you mean, is Fruit the only engine that slows down when compiled for 64-bit?
>
>Yes.

I find it interesting; do you feel like investigating?

One drawback of 64-bit ints and pointers is that they could take more space in
memory, but I thought I carefully avoided that everywhere ...

Fabien.




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