Author: Peter Skinner
Date: 09:57:27 08/08/02
Go up one level in this thread
On August 08, 2002 at 11:25:46, Aaron Gordon wrote: >The testing was done on my AthlonXP 1900+ (1.6GHz) at 1.8Ghz, 150fsb(300DDR). >I set it to 1.4gb/s and 2.2gb/s (just over a 57% memory speed increase) for the >test. > >ChessTiger 14(192mb hash): 1.4gb/s 608kn/s, 2.2gb/s 671kn/s, 10.362% difference >ChessTiger 14(24mb hash): 1.4gb/s 681kn/s, 2.2gb/s 729kn/s, 7.05% > >CB* Crafty 18.15 (288mb hash): 1.4gb/s 1005kn/s, 2.2gb/s 1073kn/s, 6.766% >CB* Crafty 18.15 (30mb hash): 1.4gb/s 1066kn/s, 2.2gb/s 1133kn/s, 6.285% > >Deep Junior 7 (400mb hash): 1.4gb/s 1215kn/s, 2.2gb/s 1243kn/s, 2.3% >Deep Junior 7 (32mb hash): 1.4gb/s 1236kn/s, 2.2gb/s 1273kn/s, 3.0% > >Fritz7 (400mb hash): 1.4gb/s 991kn/s, 2.2gb/s 1060kn/s, 6.963% >Fritz7 (32mb hash): 1.4gb/s 1043kn/s, 2.2gb/s 1094kn/s, 4.89% > >Hiarcs8 (400mb hash): 1.4gb/s 195.6kn/s, 2.2gb/s 216kn/s, 10.43% >Hiarcs8 (32mb hash): 1.4gb/s 229.8kn/s, 2.2gb/s 242kn/s, 5.31% > >* Chessbase version > This was a discussion with Crafty a long time ago with hash settings. It was easily explained. When the hash setting is lower the nps is of course higher. The more you increase the hash table settings in any program the nps will decrease but the depth will increase thus providing a better search due to storing more in the hash tables. While the knps is nice what is more important is depth. Without that there is nothing. You get outsearched and you lose. Don't ever set the hash tables to high though. This will induce hd swapping and will kill everything.
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