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Subject: Re: Deep Fritz 8 Experimental hit 3.5 Millions Node Count !!!

Author: James T. Walker

Date: 07:51:03 10/13/02

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On October 12, 2002 at 20:14:14, Mike Byrne wrote:

>On October 12, 2002 at 18:49:41, James T. Walker wrote:
>
>>On October 12, 2002 at 17:32:06, Odd Gunnar Malin wrote:
>>
>>>On October 12, 2002 at 16:40:03, Jorge Pichard wrote:
>>>
>>>>Deep Fritz peak node count (roughly positions per second) was around 3.5
>>>>million.
>>>>
>>>>Take a look at the end of this Link:
>>>>
>>>>http://www.chessbase.com/columns/column.asp?pid=152
>>>
>>>I was impressed by this:
>>>
>>>"It has surprised more than one observer that they are here without any top GM
>>>assistance for their openings, but of course this could be done by e-mail if
>>>required. And game four's Tarrasch Defense was suggested by Nigel Short,
>>>although Fritz had played it several times before with success."
>>>
>>>And we are trying to compare this match with the db-match :)
>>>
>>>Odd Gunnar
>>
>>The 3.5 million nps seems like a pipe dream to me.  Running 8 x 900 mhz cpu
>>machine gives 7200 max.  That's only about 5 times faster than my 1400 Mhz
>>Thunderbird.  I don't have DF7 but my F7 runs typically 500K-750K.  They would
>>have to be getting almost 100% efficiency out of the 8 cpus to hit 3.5M/nps.  Is
>>that possible??
>>Jim
>
>The are also using the Intel Xeon 900 Mhz processors which are very chess
>friendly.  A 1Ghz Xeon processor is almost as fast as a 1.7 Xeon P4 for a chess
>program.

That's a more logical explanation.  I suspect the Xeons have a lot to do with
it.



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