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Subject: Re: Compiler test

Author: Benny Antonsson

Date: 06:33:36 07/12/02

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On July 12, 2002 at 08:04:55, Christophe Drieu wrote:

>Strange compiler results:
>
>I tried Visual C++ 6 and DigiatlMars compiler with my TRex engine.
>
>I got a position and try the 2 engine with 2 algorithm with depth=7 :
>
>VC++ (optimization maximum speed):
>	Trex alphabeta + null move
>	move b6a5
>	-0.41
>	3.149.862 positions in 28 seconds
>
>	alphabeta
>	move d5d4
>	+0.20
>	15.540.730 positions in 2 minutes and 31 seconds
>        102.918 Nd/s
>
>
>sc -0:	alphabeta + null move
>	move b6a5
>	-0.41
>	2.606.646 positions in 24 seconds
>
>	alphabeta
>	move d5d4
>	+0.20
>	48.662.903 positions in 7 minutes and 41 seconds
>	152.559 Nd/s
>
>What do you think about that ?

Why does the number of nodes differ ?



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