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Subject: Re: Questions on dual machines

Author: Robert Hyatt

Date: 21:33:19 11/20/01

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On November 20, 2001 at 20:49:53, Gian-Carlo Pascutto wrote:

>On November 20, 2001 at 15:37:39, Slater Wold wrote:
>
>>On November 20, 2001 at 11:25:50, Gordon Rattray wrote:
>>
>>>
>>>[snip]
>>>
>>>Thanks for the helpful info!
>>>
>>>>This is the speedup I see:
>>>>
>>>>Crafty 1.89x
>>>>Junior 7 1.81x
>>>>Deep Fritz 1.31x
>>>>Deep Shredder 1.81x
>>>
>>>This is a surprising and disappointing efficiency for Deep Fritz.  So, when
>>>playing on ICC, do you consider Deep Junior 7 to be your strongest option?  I'm
>>>assuming that if you have, e.g. Gambit Tiger, then Junior's SMP capability will
>>>give it a significant edge when using your dual, since GT is non-SMP.
>>>
>>>Gordon
>>
>>I thought so too.  Deep Fritz SMP code is broken somewhere.  That's why I
>>laughed when I heard it was going to be on an 8-way box.  It would have run like
>>crap.  Unless Frans fixed it.
>
>Fritz 7 was doing 900+ knps at the Dutch open on a dual PIII 1Ghz.
>
>It does 450kbps on an Athlon 1000 here, so I assume the parallel speedup
>is more close to 1.8 than it is to 1.3.
>
>--
>GCP


NPS has nothing to do with how efficient the SMP search is.  The only useful
measure is "how long does it take the parallel search to find a specific move
at a specific depth, compared to a serial search to the same depth?"



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