Author: Christophe Theron
Date: 12:04:53 09/19/99
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On September 19, 1999 at 12:13:03, Will Singleton wrote: >On September 19, 1999 at 10:12:59, Robert Hyatt wrote: > >>On September 18, 1999 at 22:49:20, Christophe Theron wrote: >> >>> >>> >>>I think a tournament on slow hardware (386-16 to 386-40, or 486 <=33MHz) >>>including top programs of the early 90s and programs of today would be very >>>interesting. We could amongst other things see if there have been really no >>>advances in software in the last 10 years. >> > >>I don't think the test would be 'fair' if that is what you want to examine. >>IE many of the software improvements come as a result of hardware changes that >>make the programs fast enough that they can do things they couldn't on slower >>hardware. IE would you play _anyone_ if you could only do a 5 ply search? >>Would you even think about null-move R=2? Would you have your program spend >>50% of its time in the evaluation? THose are all decisions I had to address >>and the answer would be different if I was doing 1K nodes per second on a >>386/16.. >> > >My program (since it only plays on one machine) definitely is targeted to that >speed (300 mhz). It wouldn't be the same program if it had to play on a 68000 >25 mhz. > >However, I'd like to know if some of the commercial programmers make provisions >for different targets, and alter search and eval strategies based on machine >speed. > >Will I think it's a very bad idea to target for a given speed. Sorry, but I see no reason to do this. When I make a change in Tiger I make various tests on different computers to be sure that nothing is broken. These tests include blitz games against Genius5 on my 386sx20 and longer games on a 300MHz computer. I think that making sure that the strength is unaffected at very different speeds is a way to make sure that you are going into the right direction. At least I think it works for me... Christophe
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