Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: How can fritz fill 200-300Mbytes hash tables in rapid chess?

Author: Vincent Diepeveen

Date: 17:31:18 06/21/98

Go up one level in this thread



On June 21, 1998 at 14:26:38, Ernst A. Heinz wrote:

>On June 21, 1998 at 13:08:40, Vincent Diepeveen wrote:
>>
>>You can fill 300MB easily.
>>
>>Especially fritz.
>>
>>If you don't clean your hashtable (and fritz doesn't do this), then [...]
>
>Vincent,
>
>You are the first to claim that "Fritz" does *not* clear its hash tables
>after each move. Up to version 4, "Fritz" definitely did it ...

Fritz3 didn't do it.

If it misses a move, you make some moves after which it sees the
critical part of the variation then you take back, then you already
see clearly that it didn't clean hashtable.

Easy.

Perhaps 4 messed up because that was a windows experiment.

>Where do you get your knowledge from?

Remember you can always test positions at programs and conclude things
from it.

>According to my own experiences when playing "Fritz 5" I guess that it
>still clears its tables -- the first iterations just do not seem to fly
>by as they should if the tables remained intact.

Did you test positions at it and then try to see whether it learns from its
hashtable?

Frans ain't stupid of course he profits already for years from this not cleaning
hash.

In diep it speeds up in middlegame at blitz more than 30%,
but at slower levels less. Endgame weirdly not more than this 30%,
i would expect more, but this ain't the case.

Rebel needs to clean them, and i leave it to you why it needs to, because
i get otherwise another 20 stupid hatemails from guys knowing shit of
computerchess.

>=Ernst=



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.