Author: Vincent Diepeveen
Date: 07:55:35 01/30/02
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On January 30, 2002 at 10:28:19, Kevin Strickland wrote: >And also remember Diep wins everything blindfolded. > >You might be right about that. Bob might be right about his statements. > >Does anyone _really_ care about this anymore? Kevin, bob has a small problem defending deep blue as 40^9 is such an incredible number of nodes needed, that you must not confuse it with the 'branching factor' which bob uses. branching factor is something entirely different than total number of nodes. branching factor only says how much it costs in software to get 1 ply deeper, but in reality never the 480 processors start to search at once of course. Good examples are programs like Zugzwang at 512 processors, before *some* processors started to search we were 30 seconds further. Deep Blue had 480 chess processors, very well comparable number to 512. the branching factor bob is further also influenced by hashtable entries in the software part which can get reused.
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