Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Gandalf 6.0 : do you have PGNs?

Author: Kurt Utzinger

Date: 03:37:34 12/04/04

Go up one level in this thread


On December 04, 2004 at 06:14:14, George Sobala wrote:

>Thanks for the info. A powerful test setup you have!
>
>I feel that an engine that gets disproportionately stronger on faster hardware
>(or longer time controls) is preferrable to one that does the opposite! It will
>only improve with time as our computers get faster.

      I accept this opinion but nevertheless do not want
      to change my mind. BTW, have you ever seen an engine
      that becomes weaker on faster hardware or at slower
      time controls?
      Kurt
>
>I want to rerun the Nunn2 match against CT15 on my Centrino 1.6GHz. Do you have
>a PGN of this match for me to compare? I will run it at the 20'/40 moves
>recurring.

     The Nunn2 match vs CT_15 (40'/40 on Duron 1.3/64 MB hash)
     will be finished in about half an hour I think. You will
     get the full PGN from me. But about one thing I am sure:
     it's not possible to have a real comparison by simply
     using an adapted time control on a faster PC to simulate
     40'/40. The behaviour of most engines is not the same at
     different time controls. Otherwise you could for example
     compare a match 5m/g on P4 3.6 with a 40'/40 match on 486/33
     but this does not work.
     Kurt

I will use ERT because I am still concerned about the possible
>Chessbase GUI UCI hash problem. Other UCI engine authors have certainly reported problems with the Chessbase GUI secretly and randomly resetting the hash to 1M, only discovered by looking at log files.

     This could (I do not hope so) be a possible reason I
     can't check. TaskInfo shows nothing irregular but can
     we trust here what TaskInfo displays. Another example
     where TaskInfo gives wrong outputs is Deep Sjeng as
     TaskInfo is unable to recognize correctly the allocated
     RAM by Deep Sjeng. Before staring your tests, I suggest
     that this most important question should be answered
     by experts.
     Kurt

Gandalf does not produce a log file, so can we be certain all is ok?



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.