Author: Chris Hull
Date: 20:26:26 02/01/04
Go up one level in this thread
On February 01, 2004 at 20:58:08, James T. Walker wrote: >On February 01, 2004 at 20:28:45, Chris Hull wrote: > >>On February 01, 2004 at 19:44:27, James T. Walker wrote: >> >>>On February 01, 2004 at 19:40:10, Rolf Tueschen wrote: >>> >>>>Congratulations! Old man without a chance................. Har de har ha >>>> >>>>Rolf >>> >>>Yes, there is no way Hiarcs can compete with the hardware advantage of Crafty >>>(almost 10:1) since Hiarcs is only about 100 points stronger on equal hardware. >>>Jim >> >>Hiarcs (Elo 2812) was playing on a Athlon XP2400 (2.5GHz??). The Athlon XP 2400 >>runs at 2.0GHz, there is no Athlon XP that runs at 2.5GHz. Crafty (Elo 2607) was >>on a Quad Opteron 4 x 2.2GHz. So Crafty has 4.4x the GHz advantage and Hiarcs >>has an 205 Elo advantage. You can't tell me this is an unequal fight. >> >>Beside the object is to win, fairly squarely, by the rules. Bob has done just >>that. Congratulation, to him. >> >>Chris > >Hello Chris, >I think you do not understand what you are talking about not to mention what I >was talking about. >The Elo's on ICC mean nothing. The Ghz of the two CPU's are not directly >comparable. I also congratulate Bob on his win. He has spent many hours >refining Crafty's performance on multi-processor machines which has paid off for >him. >I own 3 (ea) XP2400+ machines so I know a little about their speed. Crafty runs >around 700-800 Knps on my machines. Crafty was hitting 7-8M/nps on the Quad >Opteron. That's what I base my approximately 10:1 speed advantage on.(Not >exact) I have over 23000 games in my blitz database (All Auto232 games on 2 >equal machines). At this moment Crafty has a rating of 2330 in my database and >Hiarcs 9 has a rating of 2449. That's a difference of 119 Elo points. I may >not have the exact programs that were running on ICC today but they are close >enough for educated guesses. My guess is that Crafty was the favorite because >of it's ability to run on faster hardware. That's not a knock on Crafty or Bob. > It's simply acknowledging what is a fact. Bob is doing what everyone who wants >to compete in computer chess has to do eventually. He is in fact leading the >way. Others must either follow or be left behind. Multi-processor based >systems will be the future home desktop PC. May as well start learning to make >your programs take advantage of them now. >Regards, >Jim I agree with you somewhat. The GHz on the Athlon XP are not exactly equivalent to the GHz on the Opteron. Someone said that the Athlon XPs were overclocked as well. Also, the Elo rating on ICC are to be taken with a huge grain of salt. But all that being said, Crafty and Hiarcs met head to head in round 9 and it was a draw. This two programs on this hardware are closer than you think. Chris
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