Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Chess over LAN revisited - APHID

Author: Vincent Diepeveen

Date: 03:47:39 09/17/01

Go up one level in this thread


On September 17, 2001 at 05:07:55, Gian-Carlo Pascutto wrote:

The problems are huge. I do not know who wrote the 6-7
crap. Crafty AFAIK never was running over a network properly.

Bob can answer this better of course, but it's complete nonsense
that you get 6.0 - 7.0 out of 16 processors at a 100mbit network.

Most likely the speedup is for a crafty version with more extensions
WITH shared memory. speedup is in general worse when the searchspace
you search is not overlapping for each processor.

>Hi all,
>
>I missed most of the relevant thread but after quickly
>scanning through some posts I wonder why nobody has
>brought up APHID.
>
>The reported speedups for Crafty (version 12.something)
>with 16 processors are 6-7 without shared memory, and 9
>with shared memory.
>
>Aditionally. the library itself as well as a 'distributed'
>Crafty that uses it are already available *now*. It shouldn't
>be too hard to adapt the very latest Crafties to it either.
>
>Whats the general opnion about it? Nobody experimented
>with this Crafty?
>
>--
>GCP



This page took 0.13 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.