Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Crafty time handling problem?

Author: Robert Hyatt

Date: 21:11:31 12/20/01

Go up one level in this thread


On December 20, 2001 at 17:57:35, David Rasmussen wrote:

>On December 20, 2001 at 14:44:18, Robert Hyatt wrote:
>
>>
>>Because it _assumes_ it will save time here and there by "pondering" correctly
>>and it adjusts the time target for each move based on this assumption.  But
>>the assumption is _wrong_ since it isn't pondering at all.  The time allocation
>>for ponder=off simply needs more tuning.  But I don't _ever_ play serious games
>>with ponder=off so I never test or tune for that...
>
>I can understand that you get bad time allocation, without pondering, that is,
>too much time is used on a move, or not enough, but to actually lose on time, is
>another matter. But I see your point.
>
>/David


I can't see how crafty can _ever_ lose on time.  At least under an O/S with
an accurate elapsed timer (to the nearest .01 seconds or whatever) and with
reasonable task switching to handle the context switching between Crafty and
the xboard gui.

I have not lost _any_ games on time under unix-based systems.  I have not seen
Crafty lose _any_ games on time running under NT or 2000 either.  But other
systems like win95/98/me _do_ have problems...

My "stress test" for unix is to play "game in 1 second" games.  (you have to
hack xboard to support this, or else you can try game in 1 minute which is also
a tough test).



This page took 0 seconds to execute

Last modified: Thu, 15 Apr 21 08:11:13 -0700

Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.