Author: Robert Hyatt
Date: 22:02:29 04/28/00
Go up one level in this thread
On April 28, 2000 at 23:39:10, Jeremiah Penery wrote: >On April 28, 2000 at 09:41:29, Chessfun wrote: > >>On April 28, 2000 at 09:21:59, Enrique Irazoqui wrote: >> >>>On April 28, 2000 at 08:59:27, Chessfun wrote: >>> >>>> >>>>All games on one Cel 433. >>>>Ponder=on. >>>>Tablebases used at 25 and longer. >>>>Nunn 1 positions. >>>>No opening books are loaded. >>>> >>>> 1 min game Fritz 6a 10.0 - 10.0 Crafty 17-10 >>>> 2 min game Fritz 6a 12.0 - 8.0 Crafty 17-10 >>>> 3 min game Fritz 6a 16.5 - 3.5 Crafty 17-10 >>>> 5 min game Fritz 6a 16.0 - 4.0 Crafty 17-10 >>>>10 min game Fritz 6a - Crafty 17-10 running >>>>25 min game Fritz 6a 7.0 - 6.0 Crafty 17-10 Current score >>>>60 min game Fritz 6a - Crafty 17-10 Unplayed >>>>Tourney times Fritz 6a - Crafty 17-10 Unplayed >>>> >>>>These results seem to be all over. >>> >>>Since you are using one machine and ponder on, each engine gets 50% of CPU time >>>and therefore you should compare these results with the ponder off results at >>>half the time. 2 minutes game ponder on compared to 1 minute game ponder off, >>>etc. > >No. Pondering doesn't just affect the time so linearly. There are a lot of >factors. > >>>There is still the question of the CPU time being allocated properly. I wonder >>>if we are proving anything like this. >> >> >>I think ponder=on on one cpu just don't work. >>IMHO that is :-) > >As long as both programs are getting 50% of the CPU, it's (roughly) the same as >a ponder-on match on 2 machines at half the time control. It is really like a ponder-on match on 2 machines at about 3/4 of the time control. Programs will use 50% of their total time properly. They will use the other 50% of their total time for pondering, but roughly 50% of that will be useful, 50% will be lost due to incorrect pondering. A game in 1 minute ponder=on is probably pretty close to game in 45 seconds, ponder=off.
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