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Subject: Re: "You are correct... " Thanks!

Author: David Rasmussen

Date: 01:57:03 12/06/01

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On December 06, 2001 at 00:20:24, Robert Hyatt wrote:

>I ran the test and you are absolutely correct.  32 bit pawn hash keys
>are not usable.  I am not sure when I went to this, but I did look back
>thru my test results in my file at the office, and the last time I did any
>hash sanity testing was when I did use 64 bits.  Since I made the change to
>32 I apparently didn't test well enough.
>
>It is a trivial change to fix, and Crafty is now back to 64 bit signatures.
>
>Glad you took the time to test and kept the idea "alive".  You were
>certainly correct about the number of collisions...  and it has to be
>unacceptable.

Thanks! Finally... I was beginning to think I was insane or that my computer had
faulty RAM or something :)

We agree then. Do you think 48 bits could do it? Probably. But it's not worth
the effort, now that you (and I) already have a 64-bit type. The PawnHashTable
doesn't need to be "big" anyway.

You are saying that Bruce uses 32-bit keys. Is this true? He has the problem
too, then.

/David



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