Author: Mikael Bäckman
Date: 09:37:40 08/10/05
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On August 10, 2005 at 09:55:04, James T. Walker wrote: >I watched Crafty play one game last night. The reported NPS was around 14-15 >Meg for a few moves whick I took notice of. The depth reported was only around >14/15 ply. My XP2400 only hits around 900K NPS in these positions and reported >a depth of about 12-13 ply. Is Crafty really only getting 2 extra ply for at >least a 15-16 times increase in NPS? Bob ? >Jim It's the branching factor. Assuming that the BF is 3 on average, you need 3 times the speed to reach a ply deeper in the same amount of time. Two extra plies need 3*3 = 9 times faster hardware. Three plies need 27x and so on. /Mikael
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