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Subject: Re: new computer chess effort

Author: Robert Hyatt

Date: 18:57:42 12/20/99

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On December 20, 1999 at 15:48:35, Greg Lindahl wrote:

>On December 17, 1999 at 18:59:56, Eugene Nalimov wrote:
>
>>Yes, but Bob wrote exactly why memory is the necessity, and you did not explain
>>how you plain to avoid using it.
>
>Bob explained why memory was a necessity if you wanted to exactly replicate Deep
>Blue's chips. He did not consider either (1) FPGA cards with SRAMs, which are
>common, or (2) whether it's best to put as much into the FPGA as Deep Blue does.
>
>That's why I was disappointed with his comments.
>
>> You can waive your hands in the air as long as
>>you wish; but when it comes down to technical details, I'd recommend you to
>>listen to others
>
>I am happy to listen to others. I have been listening to others. I just don't
>think that a discussion about something that I don't think is a good idea anyway
>(due to 2) and that is fairly moot (due to 1) is worthwhile.


Here we disagree strongly.  Because I have talked to Ken many times over the
past 20+ years, and Hsu as well.  And both found that the entire engine has to
go into the hardware, otherwise you end up with a bottleneck in passing data
back and forth between the hardware and software parts of the program.  This
isn't bad to make a program faster, but it provides a sharp asymptote that has
a slope much less than we'd like.

But as I said, doing a 1978-Belle-type design would be interesting, because it
would provide a significant speed-boost.  But it wouldn't push anywhere near the
one-chip DB level of performance (ie no 2+ million nodes per second speeds on a
single CPU).



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