Author: Ed Schröder
Date: 02:19:15 09/05/99
Go up one level in this thread
On September 05, 1999 at 04:17:35, Vincent Lejeune wrote: >On September 05, 1999 at 03:53:35, Ed Schröder wrote: > >>On September 05, 1999 at 02:54:08, Mark Young wrote: >> >>>On September 05, 1999 at 00:11:40, Robert Hyatt wrote: >>> >>>>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... >>> >>>He is what Ed posted on the Rebel Board. >>> >>>____________________________________________________________________________ >>>Rebel lost. After 10 crashes the moves of the game are lost too. Rebel >>>apparantly played with a wrong version. After 10 crashes I loaded the >>>Sorin/Rohde version. No crashes since then but then it was already too late. I >>>am sorry, it never happened in my whole life I played with a corrupted version. >>>Expensive though! So most likely it was not the hardware. I have some homework >>>to do! >>>Ed >>>____________________________________________________________________________ >> >>Some quick online notes, I will report more precisely later. >> >>I take the above back, it was a premature conclusion. After some more >>testing after the game the version that played Sorin/Rohde also crashed. >> >>In the game Rebel played 40.Rg4 showing a score +2.30, that is ridiculus >>of course. I can not reproduce this with any Rebel version I have. >> >>In any case yesterdays game was meaningless for the statistics and the >>discussion if micro's are at GM level on tournamemt time control. Of >>course the result remains including the financial consequences. >> >>Ed > > >Why didn't you switch to an emergency computer (i.e. PII-450) ? Whenever a machine crashes you never know for sure if it is the machine, the program that is running or the operating system. The only way to find out is to reproduce the crash. For that I had no time as the clock was ticking and ticking. Ed
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