Author: leonid
Date: 13:06:24 12/06/99
Go up one level in this thread
On December 06, 1999 at 12:42:03, Pete R. wrote:
>IBM announced plans to develop a machine 1000 times more powerful than Deep
>Blue, to be used to model protein folding. Now the comparison to DB is a bit
>artificial since DB used custom chess chips. This new one ("Blue Gene") will
>have a million+ processors and perform a quadrillion operations per second. The
>question is, if IBM made a similar investment in a new chess monster, how much
>stronger than DB2 would it be in chess terms? A thousand fold increase would be
>what, an additional 6 ply search in the same time? What ply depth would it
>typically get to in 3 minutes? 20+? If it had a million of Hsu's latest
>processors it might even be more than a 1000 fold increase. Just musing. I
>think IBM could easily build a machine that would retain the World Champ title
>against humans indefinitely.
Could never find how much from each ply game is forced to see, when it make
search by "brute force" and without any fantasy "extensions". After my own
experience, it is around 21% from the ply (no hash tables). In general, I will
say, game is forced to see 6 moves from each ply that contain 30 moves. 1000
fold increase - represent around 4 plies.
Leonid.
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