Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: The need to unmake move

Author: Sune Fischer

Date: 12:11:57 08/25/03

Go up one level in this thread


On August 25, 2003 at 14:53:46, Robert Hyatt wrote:


>>Your calculation was based on 2.4 Mnps and you compared that to 1 Mnps (nps
>>being the _only_ factor changing in the equation) but you neglected to include
>>the double bandwith _for the cache copying_ which would unify it back down.
>
>I'm not sure what you mean, exactly.  I always referred to my 2.4M nps as
>"the benchmark number".

Yes, but note this doesn't mean 1 node every 400 ns, it means 2 nodes every 800
ns (ball park figures as always).

I believe this distinction is important when you talk about memory trafic,
because using two cpus does actually double the _cache_ bandwidth (for things in
cache), and that is an important factor.

-S.



This page took 0.07 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.