Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: They disabled optimizations in their Makefile.

Author: Vincent Diepeveen

Date: 13:21:07 08/09/04

Go up one level in this thread


On August 09, 2004 at 16:13:56, Gerd Isenberg wrote:

>On August 09, 2004 at 15:54:44, Gian-Carlo Pascutto wrote:
>
>>They goofed the makefile up, it compiles TSCP with optimizations
>>disabled.
>>
>>My Athlon64 3400+ gets 155543nps with the crippled makefile.
>>
>>After enabling optimization, it gets 335023nps.
>>
>>--
>>GCP
>
>Did they really bench none optimized AMD64 versus optimized XEON executables?
>Scandalizing if that is true!

They actually *did* run optimized for P4 3.6Ghz Xeon 1MB L2 cache.

Note that the RAM and the videocard (for putchar) was a lot faster on the P4 and
i would not be surprised if also a SCSI diskpack was used at the p4 dual xeon
versus an old IDE at the A64.

It was a very deliberate attempt because the homepage from the primegen author
he already mentions that the generating of the primes itself takes 8 seconds
versus outputting it takes 25 seconds.




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.