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Subject: Re: ICC Green List R/megahertz question

Author: Will Singleton

Date: 15:12:02 12/13/99

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On December 13, 1999 at 17:29:35, Roger wrote:

>These green lists are cool.
>
>I noticed that someone posted that using a PIII coppermine chip gave speedups
>for many of the chess programs over just a plain PIII. Plus, a PIII 450 is gonna
>give more speed than a PII 450.
>
>After reading that, it occurred to me that the R/megahertz statistic might be
>biased, and that the authors could run some kind of benchmark on their systems
>to equalize things out.
>
>The R/benchmark statistic would probably give a different sorting than
>R/megahertz. But what would this benchmark be?
>
>Roger

Right, it's just an approximation.  The difficulty is that chess programs will
perform differently depending on the implementation (choice of data structs,
etc).  The compiler makes a difference, too.

Even if you ran benchmarks (which was the original reason for the TSCP
benchmarking thing), the various programs are sufficiently different from TSCP
to cause inaccuracy.  So I ended up just using mhz, which is good enough for the
purpose.

Will



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