Author: Bernhard Bauer
Date: 00:46:51 10/06/99
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On October 05, 1999 at 11:34:54, Christophe Theron wrote: >On October 05, 1999 at 10:06:35, Bernhard Bauer wrote: > >>On October 05, 1999 at 09:47:29, Shep wrote: >> >>>On October 05, 1999 at 09:25:43, Wayne Lowrance wrote: >>> >>>>On October 05, 1999 at 08:42:36, Bernhard Bauer wrote: >>>> >>> >>>>>As Fritz and Tiger are designed to be used with PB=on any results with BP=off >>>>>are questionable since they do not reflect the true program strengt. >>>>> >>>>>Kind regards >>>>>Bernhard >>>> >>>>I agree with that. I just cannot get interested in matches played on one comp. >>>>If the author of both programs would come out and say it makes no difference >>>>that would be another story. However I know Bob Hyatt has said so many times it >>>>affects Crafty ! >>> >>>Actually, Christophe said Tiger should play equally well with PB off. >>>Of course it may be a different story with Fritz. >>> >>>--- >>>Shep >> >>If a program plays equally well with PB=off as it plays with PB=on than I >>would conclude that PB=on is broken. >>Kind regards >>Bernhard > > >Of course not! > >Turning PB on helps if you have 2 computer and thus the programs can use their >CPUs during the opponent's thinking time. > >But for me it's very clear that if prog A beats prog B on 2 identical computers >with PB on, prog A will beat prog B on one computer with PB off. > >If you have a counter example, give proof of what you say. Give a reproducible >experiment we could conduct in order to support your argument. > > > Christophe Dear Christophe, I refered to the statement (read above) >>>Actually, Christophe said Tiger should play equally well with PB off. I try to write slowly. If you play against a program running on one computer with pondering on, I would assume it to produce better moves than the same program running at another time on the same computer with pondering off. If not, I conclude pondering on is broken. This reasoning is so simple that I don't see a necessity for any proof. Just common sense. However, if you have two programs running on one computer with only one cpu with pondering on or pondering off they may perform (relativly to each other) the same way - or not. If you turn tablebases off it may not affect the relative performance ether. And if you play without a book it may or may not affect the relative performance too. Anyway, it is better to use a fully configuered program for test purposes than a crippeled version. All that may be of no interest to you, if you are only interested in numbers, results or such bean counting. But if you are interested in good games it makes a big difference. Kind regards Bernhard
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