Author: Mike Byrne
Date: 22:50:29 03/05/03
Go up one level in this thread
On March 06, 2003 at 01:01:32, Uri Blass wrote: >On March 05, 2003 at 22:37:56, Mike Byrne wrote: > >>On March 05, 2003 at 22:24:45, bobby palacios wrote: >> >>>On March 05, 2003 at 20:23:07, Mike Byrne wrote: >>> >>>>On March 05, 2003 at 19:56:30, Mike Byrne wrote: >>>> >>>>>Ruffian vs Crafty 19.03 "x", Blitz: Game /5 >>>>> >>>>>Dual 1.8 Ghz Xeon >>>>>Ponder On >>>>>Unified Hiarcs Tourn book >>>>> >>>>>Crafty 19.03 "x" +62 -53 =69 52.45% 96.5/184 >>>>>Ruffian 1.0.1 +53 -62 =69 47.55% 87.5/184 >>>>> >>>>>This is clearly the best result a modified Crafty (for me) has ever obtained >>>>>against Ruffian at Game/5. >>>> >>>>This is the last game played - Ruffian has the advantage and lost it. >>>> >>>> >>>> >>>>Ruffian 1.0.1 - Crafty 19.03 'x' [B33] >>>> >>>>W=11.2 ply; 512kN/s; 959 TBAs >>>>B=10.9 ply; 748kN/s >>> >>>This is a bit strange. On my p4 2.47ghz, Ruffian generally outsearches Crafty >>>19.03 by about 100-200kn/s, but certain engines run better on certain machines, >>>so maybe this is expected. >> >>Since I compiled Crafty on my machine using profiled optimizations, it would be >>highly optimized for my machine. >> >>:)))))) > >I am surprised by the number of nodes of Ruffian. > >Even on my slow P850 Ruffian can show more than 512 Kn/seconds > >Here is some analysis of one of the position of the game by Ruffian. >depth=12 1/48(Rh5) +0.96 Rh5 Rc3 Qxc3 Qxh5 g4 Qg5 Qa3 h5 h3 Qh4 Qxd6 Qxh3 Qxa6 >hxg4 Qxb5 >Nodes: 34277608 NPS: 548266 >Time: 00:01:02.52 > >Why did Ruffian search only 512 knodes per second on 1.8Ghz? >Are you sure that Ruffian used 100% of the time of your second processor? > >Uri Yes - I do checked that frequently to make sure no are problems. My p4 behaves more like a P3 1000(?guess) for many chess programs that are not optimized specifically for the P4.
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