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Subject: Re: Deep is bad on a single processor computer?

Author: Dann Corbit

Date: 22:16:21 10/23/03

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On October 23, 2003 at 03:26:53, Gian-Carlo Pascutto wrote:

>On October 21, 2003 at 22:33:55, Bob Durrett wrote:
>
>>On October 21, 2003 at 08:47:36, Bill Bahrenfuss wrote:
>>
>>>new SSDF List here http://w1.859.telia.com/~u85924109/ssdf/
>>
>>This finally answers a question I asked months ago and got no answer, perhaps
>>because no one knew.  Junior 8 is better on a single processor machine than
>>Deep Junior on the same single processor machine.
>>
>>Could it be that the Deep programs have overhead which reduces performance on a
>>single processor computer?
>
>I can't speak for Deep Junior, but Deep Sjeng definetely runs at full strength
>on a single processor machine too!

A small difference in playing strength can be attributed to compiler flags for
SMP verses single threading.  The reentrant routines are sometimes slightly
slower.

Probably 10% tops in CPU speed from that.  Maybe 2 Elo.



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