🚀 go-pugleaf

Simon Waters <Simon@wretched.demon.co.uk> writes:

> Dann Corbit wrote:
> > 
> > book create book.pgn
> 
> book add book.pgn
> 
> > No.  A 950 MHz machine took several hours.
> 
> My 166MHz Cyrix box takes several days, it is quicker for Stefan
> to build it for me and ftp it from his machine. It gets slightly
> faster in the next planned release, but that is due to bug fixes
> not optimisations.

I talked to a fellow Debian user about gnuchess on irc and he did some
fixes for ppc.

He also changed the data structure for the book a has (last bits of the
64Bit hash give the address in the array). Its much simpler than the
glib hash I used and it is way faster, way faster.

My PC took nearly a day to create the book (3 games a second), was
nearly twice as fast with the glib hash (5.6 games a second) and with
the simple has it just flies through it (77 games a second) in a few
minutes.



Eigther the glib hash is surprisingly ineffective or the recent
changes in the cvs version (like much smaller pawn hashes and such)
give a surprisingly high speed increase for book creation.

MfG
        Goswin