Author: Sedat
Date: 16:36:24 01/07/05
Go up one level in this thread
On January 07, 2005 at 18:36:56, Russell Reagan wrote: >On January 07, 2005 at 13:07:03, Ingo Bauer wrote: > >>Hello >> >>In case you are still amazed why the engines do different moves in differnt GUI >>do the following test: >> >>Two engines with a fixed balanced opening position (no books). Now start a 20 >>Game match in the same GUI (choose one) with the same position and the same >>color for each engine, of course learning should be switched off and the time >>for each game should not be too short (eg. 15 min each side) >> >>You will see that you do not get 20 identical games. Not all moves are allways >>reproducable, most chess engines are not deterministic and it is gettiing worse >>if you use dual engines. >> >>Bye >>Ingo > >If there are nondeterministic single-cpu chess engines, then maybe a better test >for GUIs would be to use simple, open source engines. Do you think a simple, >open source engine such as TSCP is more likely to be deterministic? > >Or does the issue of time cause undeterministic behavior no matter what? i.e. >maybe a background process (system process, firewall, antivirus, etc.) randomly >takes enough CPU time away from a chess engine to cause nondeterministic >behavior? Always while i am running engine-matches : ------------------------------------------ -No surfing on the Net,no working with Word,not doing some Programming etc. -Before to start each tournament under both GUI's the PC is restarted ! -For each GUI was setuped separate (different)folder of engine.exe -No any program is insalled in the TaskBar ! Sedat
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