Author: Vincent Diepeveen
Date: 07:37:32 08/25/05
Go up one level in this thread
On August 24, 2005 at 14:50:46, Thomas Logan wrote: >On August 24, 2005 at 12:05:09, Vincent Diepeveen wrote: > >>On August 24, 2005 at 08:59:28, Thomas Logan wrote: >> >>>On August 24, 2005 at 08:47:33, Vincent Diepeveen wrote: >>> >>>>On August 24, 2005 at 08:20:25, Thomas Logan wrote: >>>> >>>>>Does anyone have scaling figures for various deep programs >>>>> >>>>>and systems with 2 dual core processors >>>>> >>>>>Tom >>>> >>>>hi, i just started a test at my k7 single cpu machine >>>>to compare an output created at a quad dual core 1.8Ghz. >>>> >>>>The test is over 213 positiosn and statistical significant. >>>> >>>>I expect results within 2 weeks. >>>> >>>>You can calculate what time it takes 70 minutes * 213 positions. >>>> >>>>one thing already seems sure: >>>> >>>>x86-64 has no scaling problems with big hashtables, x86 has. >>>> >>>>Vincent >>> >>>Hello Vincent >>> >>>Thank you >>> >>>Are you using Diep ? >>> >>>Any knowledge concerning Fritz, Junior or Shredder >>>Please post your results when obtained >> >>Shredder is scaling 3.3 at quad single core, so that'll be like scaling of 4 at >>dual core quad or so? >> >>junior was single core and fritz will not be scaling well either (deepfritz8). >> >>We know all this already from 8 cpu Xeon machines in fact. See results donninger >>posted once. >> >>If you don't run well at 8 cpu xeon then forget dual core. >> >So you believe Shreder scale fairly well on a quad Scaling 3.3 is very ugly from a quad. Please don't mix scaling with speedup, just like Bob did do. Diep scales about 3.93 at a quad. That means that the nps of 4 cpu's gives 3.93 times that of 1 cpu. After you have a good scaling, the real interesting thing for computerchess is the speedup you get out of the quad versus a single cpu. >But regarding Junior and Fritz I of course meant the deep versions of Junior and >Fritz > >Any knowledge on these ? It's ugly what they do, or they would show up at world champs with quad dual core. > >Thanks > >Tom
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.