Computer Chess Club Archives

Search

Messages

Subject: Re: Pawn Hashkey Size

Author: Severi Salminen

Date: 10:15:36 12/03/01

Go up one level in this thread

>If you have collisions, you _will_ fuck up evaluation.

Yep, but the question is: "does it really matter?". On my slow computer using
32-bit keys instead of 64-bit speeds things up a lot so I have no question what
to use - even if I get a few collisions the speed up is worth it. So far I have
seen identical results from both 32-bit and 64-bit versions but I have to test
this maybe more. This will of course be different when 64-bit processors show
up.

Have you seen any situations where the 32-bit version gives different PV or
scoring than the 64-bit version? I mean that 1 collision after 5 seconds (that
is probably after 500000+ nodes) might mean nothing.

Severi

• Re: Pawn Hashkey Size David Rasmussen 11:20:31 12/03/01
  • Re: Pawn Hashkey Size Severi Salminen 04:06:35 12/04/01
    • Re: Pawn Hashkey Size David Rasmussen 04:37:25 12/04/01
      • Re: Pawn Hashkey Size Severi Salminen 06:10:10 12/04/01
        • Re: Pawn Hashkey Size David Rasmussen 06:44:44 12/04/01

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.