Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Crafty 15_20 vs Crafty16_8

Author: Gregor Overney

Date: 17:08:41 06/01/99

Go up one level in this thread


There are several reasons why you got a stronger 15.20. But let's look at
"plain" search strength.

Did you run 'bench' on 15.20 and 16.8 to make sure that both engines run roughly
the same amount of nodes/second? It is possible that 15.20 has been compiled
with /Oa and VC++ 5.0 SP3. Until SP3 of VC++ 6.0 got released, Microsoft was
"able" to sell a broken version of /Oa. It seems to be fixed in SP3. This little
difference makes your code run 5% faster.

Gregor



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.