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Subject: Re: DB just another program

Author: Dann Corbit

Date: 15:10:10 01/26/00

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On January 26, 2000 at 18:00:29, walter irvin wrote:

>Deep Blue has great results to its credit but it has had great hardware .the
>following programs at equal speeds are as good or better .
Frogs, wings, and butts on rocks.
;-)

>1.cm 6000
>2.fritz 6
>3.junior 6
>4.m-chess 8
>5.shredder 4
>6.tiger 12
>
>at equal mhz programs like fritz 6 would get more nps im sure .they would search
>much deeper than deep blue .in computer vs computer matches speed kills , thats
>why on the ssdf , programs on faster hardware get inflated ratings .

Do you know how Deep Blue searched?  How will we reach those fantastic speeds?
Faster hardware does not inflate ratings.  It raises it by a logarithmic amount
for each increase.  It is estimated about 50 ELO.  So, suppose we have a program
with 2500 ELO and we want to get to 2800.
2500 + 50ELO/doubling * 6 doublings = 2800.  Sounds pretty simple, right?

But if it takes 500 Mhz to get 2500 ELO, then it will take:

500 * 2 * 2 * 2 * 2 * 2 * 2 = 32 GHz to achieve it (roughly speaking).

IOW, more horsepower is a tough way to make chess programs play better.  There
is also evidence (according to some) that the increase in speed has
*diminishing* returns.  Hence, it may take a terahertz to get there.  Don't know
of any material that could do that, not even a Josephson Junction.



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