Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Crafty and Alpha processors

Author: Robert Hyatt

Date: 13:01:46 01/20/01

Go up one level in this thread


On January 20, 2001 at 15:39:02, Joshua Lee wrote:

>How fast is crafty on a 800Mhz PIII? AMD Athlon at 800Mhz? I don't know about
>the Alpha too much which CPU speeds do they offer for comparison? Would a Dual
>or Quad Xenon or Athlon compare with a Single Alpha ? Thanks

Here is the output for running WAC at 60 seconds per move on a single xeon cpu,
700mhz, 1M L2 cache:
test results summary:

total positions searched..........         300
number right......................         299
number wrong......................           1
percentage right..................          99
percentage wrong..................           0
total nodes searched.............. 132559227.0
average search depth..............         4.7
nodes per second..................      412161



Here is the same test run on a 21264 alpha at 600mhz:

test results summary:

total positions searched..........         300
number right......................         300
number wrong......................           0
percentage right..................         100
percentage wrong..................           0
total nodes searched.............. 236973211.0
average search depth..............         4.5
nodes per second..................      783641

As you can see, the alpha has a 16% slower clock speed, but is nearly 2x
faster...

Bob



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.