Re: [computer-go] Pattern Matcher

[Vincent Diepeveen <diep@xxxxxxxxx>]

At 14:56 9-11-2004 -0500, Don Dailey wrote:
>
>Vincent, your  speedup has  taken the solver  over 10 times  longer to
>compute!  How can you call that a speedup?  If you turn off alpha/beta
>pruning it will go even faster!

>You are embarassing yourself and the  rest of us chess guys.  Make the
>program SOLVE faster and check your work before reporting progress.

??

You're missing the point.

He has such a horrible 'hashkey'

that one needs to add zobrist (speeds up program even more by the way)

To get the same hashtable performance.

Then adding a better overwrite strategy will improve the performance a lot.

You can trivially do this too. I spent a few minutes changing the hashtable.

That's enough. I already wrote an alphabeta program solving the entire game
without database. The database i just checked whether the solutions were
correct.

Anyone not getting this point is completely disturbed.

>- Don
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