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Subject: Re: How much longer will the SSDF continue to use the K62-450?

Author: Dann Corbit

Date: 16:40:49 11/30/00

Go up one level in this thread


On November 30, 2000 at 18:36:20, Torstein Hall wrote:

>On November 30, 2000 at 17:45:55, Dann Corbit wrote:
>
>>On November 30, 2000 at 17:33:17, Laurence Chen wrote:
>>
>>>On November 30, 2000 at 16:03:02, Garry Evans wrote:
>>>
>>>>
>>>>  Looks like already the k62-450 is hopelessly outdated, isn't it time for the
>>>>ssdf to upgrade?  I assume that most people have atleast a 700mhz computer these
>>>>days. Or am I mistaken?
>>>They would if they could afford, unless anyone can make hardware donation to the
>>>SSDF.
>>
>>Actually, using the older hardware is much smarter than using new hardware.  You
>>would have to completely recalibrate all the programs, taking tens of thousands
>>of hours to get an accurate figure.
>>
>>Besides, it is quite likely that the programs scale approximately linearly with
>>hardware speed compared to each other, but that's another experiment.
>>
>>Consider:
>>You have a magic opponent who has played literally millions of games.  His ELO
>>is known within 1/2 of a point.  You have a steady stable of these opponents,
>>all with the same rock-solid calibration.
>>
>>You have another list of opponents you can use.  They might be able to beat
>>Kasparov, but they might be 300 ELO below him.  They are probably stronger than
>>the first group, but you can't really even be sure of that.  You really don't
>>know all that well.
>>
>>Which pool of talent will you use to find out how strong a new engine is?  If
>>you are smart, or know anything about mathematics, you will use the first pool.
>>
>>For those who would like to use high speed hardware to calibrate chess programs
>>-- have at it.  There is nothing to stop you from doing so except, perhaps, the
>>tens of thousands of hours of efforts between the start time and the time you
>>have good, reliable numbers.
>
>If you start with a new program, you can just as well play it on new hardware.
>Just let it play games against known programs on old hardware. You will get a
>reliable rating for the new combination of software and hardware, as you got
>with a new program running on old hardware!

Absolutely true.  However, it will look very funny to have new program x compete
with all the other programs on a different box.  In fact, that is a major source
of uproar whenever the SSDF does upgrade the machines, which has happened
several times.



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