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Subject: Re: Any details about Brutus?

Author: Uri Blass

Date: 12:47:23 02/28/02

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On February 28, 2002 at 12:57:19, Robert Hyatt wrote:

>On February 28, 2002 at 05:23:47, Gian-Carlo Pascutto wrote:
>
>>On February 27, 2002 at 19:59:35, Peter McKenzie wrote:
>>
>>>Anyone know anything about Brutus which is playing in Paderborn?  I know it is
>>>Chrilly Doningers new program, but not much else.  Heard a rumour it has special
>>>purpose hardware, can anyone confirm this?
>>
>>From Vincent Diepeveen (some stuff inbetween deleted):
>>
>>Diepeveen(FM) kibitzes: i go have a look now at p.conners - brutus (chrilly
>>donninger, 3 million nodes a second FPGA chip)
>>Diepeveen(FM) kibitzes: unclear position p.conners - brutus
>>Diepeveen(FM) kibitzes: i'll ask how many processors conners is. 300 or so 866P3
>>Diepeveen(FM) kibitzes: brutus is fpga chip
>>Diepeveen(FM) kibitzes: in software 50-70k nps
>>Diepeveen(FM) kibitzes: and then each node they get from fpga is a 2-3 ply
>>Diepeveen(FM) kibitzes: with nullmove of course
>>Diepeveen(FM) kibitzes: no hashtables on chip
>>Diepeveen(FM) kibitzes: very little eval on chip because each logics circuit
>>costs money
>>Diepeveen(FM) kibitzes: donning searching 14 ply now
>>Diepeveen(FM) kibitzes: but 14 thin plies
>>Diepeveen(FM) kibitzes: it is a world achivement
>>Diepeveen(FM) kibitzes: he made the entire chip himself
>>Diepeveen(FM) kibitzes: which is an incredible achievement
>
>That last I don't understand.  Ken Thompson did Belle by himself.  Hsu put
>Belle on a chip and improved it, by himself.  Doing it a _third_ time is an
>"incredible achievement"???
>
>:)

Most of the programmers of chess programs have no idea how to do it so they can
see it as an incredible achievement.

Uri



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