Author: Tony Werten
Date: 07:04:16 11/24/04
Go up one level in this thread
On November 24, 2004 at 09:38:37, Robert Hyatt wrote: >On November 24, 2004 at 07:53:15, Tony Werten wrote: > >>On November 23, 2004 at 23:08:42, Robert Hyatt wrote: >> >>>On November 23, 2004 at 01:11:10, Ray Banks wrote: >>> >>>>On November 22, 2004 at 23:20:58, Robert Hyatt wrote: >>>> >>>>>I use ponder-on all the time, one cpu or not... If both engines ponder, each >>>>>gets 1/2 the processor, and that doesn't disrupt normal time allocation... >>>> >>>>Why does everyone use ponder off then on their tourneys? >>> >>>I don't have any idea... >>> >>> >>>> >>>>I've previously been told that with a single processor you can't guarantee each >>>>engine will get 50%, therefore to use ponder off. >>> >>>With a decent O/S I don't see how there could be any imbalance at all, except >>>for the case where one engine is to lazy to find a move to ponder, and it just >>>"sits"... but that is an engine deficiency, not a problem with testing with >>>ponder=on... >> >>When engine A is out of book and engine B isn't, A is rewarded for engine B >>having a better book. >> >>Tony > >So? There are just as many good things as bad things... And it _does_ test the >engine the way it runs "normally"... That wasn't really the point. You can't garantee that each engine will get 50%. Besides that you are lowering the quality of play, since you waste processing cycles ( ie the bad pondermoves ) But then again, the logic "Normally I run them with ponder on, because then I have them run as I normally have" is hard to beat. Still, I don't really see the advantages of running 2 engines on a single cpu with ponder on (rather than ponder off) except when you're testing pondering. Tony
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