Re: [computer-go] question regarding Hydra Chess Supercomputer

["chrilly" <chrilly@xxxxxxxx>]

>Don Dailey wrote:
>> I agree  with you, but  according to Bob  Deep-Blue had none  of these
>> issues, he  claimed there were  *no* compromises, that even  given the
>> same numer of nodes Deep Blue would blow everything else away.
>
>This is a pretty recent paper from the Deep Blue team:
>
>http://sjeng.org/ftp/deepblue.pdf
>
>It's quite revealing about what they actually did in search &
>evaluation, or perhaps I should say, did not do...
>
The discussions in some forums are sometimes fascinating and remind me on
discussions in the middleages. Nobody cares about the facts or the sources
(in the middleages they cared at least about the sources).
In the paper above there is e.g. a table were it is clearly stated: "No
Hashtables" in the hardware search.

Vincent Diepeveen said: Feng Hsu and myself have no knowledge of chess.
Thats true. But both teams have engaged exactly for this reason a GM. In
case of Hydra GM Lutz works only since a few months for the team. Before I
did not have the money to engage one.
But that was not Dons question. He asked: Is it principially possilble to
write a better evaluator in hardware than in software. It is possible. One
can of course always implement the same in software. But the C-simulator is
by a factor of 1000 slower than the hardware. One could speed this up to a
factor of 100. But it would nevertheless be a very inefficient software
evaluation.

There is also a big difference between having some application-specific
knowledge and implementing one. Hans Berliner, the head of the Hitech
project, was world-champion in correspondence chess. Feng Hsu had problems
with the algabraic notation of the board.  But there is no doubt that Hsu
made the stronger chess programm. At least Deep-Blue II had also certainly
more chess-knowledge than Hitech ever had.

Chrilly





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