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Subject: Re: 184 Games - Crafty 19.03 "x" vs Ruffian 1.0.1

Author: Uri Blass

Date: 22:01:32 03/05/03

Go up one level in this thread


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



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