Author: Bob Durrett
Date: 18:02:53 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 Don't forget the 64-bit, 128-bit, etc. Bob D.
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