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Subject: Re: Opinions? A Crafty experiment...

Author: Robert Hyatt

Date: 11:09:56 05/24/04

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On May 24, 2004 at 12:56:56, Slater Wold wrote:

>On May 24, 2004 at 12:29:04, Russell Reagan wrote:
>
>>On May 24, 2004 at 12:06:46, Slater Wold wrote:
>>
>>>In a thread below, there is a post about Blargh, ICCs top computer.  It has won
>>>60% of its games at standard time controls, and only lost 16% in almost 3,000
>>>games!
>>>
>>>I am interested to know the OoO (opinion of outcome) of EVERYONE at the
>>>following experiment, I will be in contact with the operator of Blargh, and will
>>>try to set this up.
>>>
>>>Crafty 19.13 on an AMD FX53 (64-bit) vs Shredder 8 on a Dual Opteron 2.2Ghz
>>>(32-bit)
>>>
>>>10 game match.  120/0.
>>>
>>>Opinions?
>>
>>Crafty on equal hardware probably doesn't stand a realistic chance against
>>Shredder. Only Fritz scores at least 45% against Shredder on the latest SSDF.
>>Junior and Hiarcs score at least 40%. Crafty would be behind those engines on
>>equal hardware by a non-trivial margin (take the Junior-Crafty 10x experiment
>>for example).
>
>OoO please...
>
>>What is interesting about a Shredder-Crafty match where Crafty is at a hardware
>>_disadvantage_?
>>
>>BTW, that really explains a lot about why he is #1 on ICC. You have a freakin'
>>FX53 and you're at a hardware disadvantage! Wow...
>
>It's a disadvantage, but a small one.  How small?

It is at least 2x disadvantage.

You did notice that box is a _dual_???

Shredder has an SMP version which I would assume he is using...


>
>Crafty on a 2.2Ghz Opteron in 32-bit gets about 1.5M NPS.  With a 1.89 speedup,
>we get 2.8M nps.  My FX53 (64-bit) will do 2.6M.  It's at a 8% HW disadvantage.
>
>8% means nothing in a 120/0 game.

Where are those numbers coming from?


Crafty on a 2.2ghz opteron gets >2M on linux with GCC.  With windows it is
closer to 2.3M on a single opteron CPU...





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