Author: Robert Hyatt
Date: 21:11:40 09/04/99
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On September 04, 1999 at 23:25:27, Mark Young wrote: >On September 04, 1999 at 22:17:37, Robert Hyatt wrote: > >>On September 04, 1999 at 18:35:32, James T. Walker wrote: >> >>>I feel bad for Ed and the Rebel team. It appears that ED had a corrupted >>>version of Rebel loaded and it crashed 10 times during the match. It was still >>>a good game in which the GM IMHO played very good.(As GM's are prone to do). I >>>think his opening selection was perfect for him. He seemed to be in control >>>most of the way after gambiting a pawn. >>>Jim Walker >> >> >>No.. the problem was the overclocked AMD machine. If you overclock, you ask >>for trouble. And in general, if you ask often enough, you receive what you >>ask for... >> >>I'm not counting this game in the "Is the computer a GM?" rating calculation, >>as obviously Rebel was broken by the hardware. >> >>For the record, overclocking AMD is _bad_. I have had several horror stories >>from Crafty users about this. It seems that the AMD engineers know what their >>chips can run at, and going beyond that gets you into deep water. Intel seems >>to be more conservative rating their chips... > >I heard that Ed said it was a bad version of Rebel that caused the >problem....but I know your statement is true about AMD in general. All I can say is what Ed said to me during the game... he also reported that he had bogus problems in Paderborn... illegal moves in the PV, etc. It is definitely possible that the program was broken, however. But I have seen log files from crafty run on a misbehaving overclocked AMD, and they were pretty amazing. Bogus scores, bogus moves, all sorts of nonsense... One person only had the problem after several consecutive games, indicating some sort of thermal problem. Others just got bogus values, but things were fine when the clock was set back to normal...
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