Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Question to Bob: Crafty , Alpha and FindBit()

Author: Eugene Nalimov

Date: 16:25:22 06/10/98

Go up one level in this thread


On June 10, 1998 at 18:11:43, Fernando Villegas wrote:

>Hi eugene:
>By the way, aren't you the programmer of Siberia? If so, I am sure all
>here would like to know about your actual proyects as much as Siberia,
>at least the last version we know here, is a lot of years old. Weird GUI
>design, but strong program, interesting to play with. If you are not
>THAT Eugene, forgive my mistake and greetings anyway...
>Fernando

Hi Fernando,

I'm definitely THAT Eugene, but now (and for several years at least)
I live not in Siberia, but in Redmond, WA, USA. And my job here, as
well as in Siberia, have nothing to do with computer chess...

I try to watch what happens in the computer chess world, but now
too busy to write a new chess program. Maybe if I'll have some time,
I'll finish my own tablebase generator - prototype works well,
but needs some polishing (also, it's written in C++, and I heavy
use some C++ features - e.g. templates). Because now RAM is much
cheaper than it was when SJE wrote his generators, I try to use
RAM instead of disk, so program runs faster than SJE's, and
resulting files are much smaller than SJE's (there is compatibility
mode). Also I want to experiment with compression routines
written by my friend - he estimates that SJE's files are compressed
5-7 times, depending on the "chunk" size. Of course, decompression
take some time, but (1) processors becomes faster much faster than
disk I/O becomes faster, and (2) if program keeps cache of blocks
that were read from disk, than that cache can be 5-7 times larger,
so there will be much less I/O, and I hope that resulting access
time will be only slightly longer.

If I'll finish it :-(, I'll make sources public.

Eugene



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.