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Subject: Re: How is Hydra faster and better than Deep Blue?

Author: Bo Persson

Date: 08:32:48 05/30/05

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On May 30, 2005 at 06:16:02, Joost Buijs wrote:

>40 mln nodes /sec. is for the old Hydra-Chimera.
>
>The new Hydra-Scylla is much faster. I saw it run at 130 mln nodes/sec. on
>several occasions. So the speed of Hydra is roughly comparable with the speed of
>Deeper Blue.

That's not an accurate comparison. Deep Blue's 200M nodes/s where an average
number. It was seen to peek at 1 billion nodes/s "on several occations".

>
>The search of Hydra is much more advanced. The software part of Deep Blue was
>probably nothing more than a souped up version of GNU-Chess.

The Deep Blue teem chose not to complicate the search too much, because their
speed advantage was big enough anyway at the time.


Bo Persson



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