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Subject: Re: Benchmarking Crafty: G5 vs Xeon

Author: Tord Romstad

Date: 09:25:41 09/19/03

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On September 19, 2003 at 11:48:13, Andreas Guettinger wrote:

>On September 19, 2003 at 08:39:24, Tord Romstad wrote:
>
>>On September 19, 2003 at 08:25:00, Steven Edwards wrote:
>>
>>>The leader position changes from time to time.  Back in late 1999, the Apple
>>>PowerMac G4 was the only consumer machine to be on the US State Department
>>>export blacklist because the box could do better than 1 GFlop/sec sustained.
>>>Then there were the years where Motorola fell behind by quite a bit.  Now it
>>>looks like things are even again, but now with IBM putting its resources into
>>>PPC fab tech, I think that the PPC970 and its relatives will once again assume
>>>the front position.
>>
>>Personally I am not so optimistic.  It seems to me that the 970 is rather
>>unimpressive for integer operations, and I'm afraid non-bitboard chess
>>engines (like mine) will perform very badly.
>>
>>I have even seen several test results which indicate that the G5 can
>>even be _slower_ than a G4 in certain cases.  In particular, a discussion
>>on the Macintosh Common Lisp mailing list the last few days has made me
>>rather worried.  It started with this e-mail:
>>
>>http://article.gmane.org/gmane.lisp.mcl.general/1404
>>
>>I really hope I will be proven wrong, but so far I think the G5 looks
>>very bad.
>>
>>Tord
>
>I can not share your scepticism. I now from personal sources that my engine has
>very high NPS  on a G5 1.6 Ghz machine.

Thanks!  This is good news!  And this is a non-bitboard program?

Tord



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