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Subject: Re: Compiler test

Author: Benny Antonsson

Date: 07:52:47 07/12/02

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On July 12, 2002 at 09:47:40, Richard Pijl wrote:

>On July 12, 2002 at 09:33:36, Benny Antonsson wrote:
>
>>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 ?
>
>That's probably his question :)

Sorry, I was a little confused by the time I wrote the message :)



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