Author: Bahram Namjou
Date: 00:21:11 08/06/05
Go up one level in this thread
I am using P4 wxp with hyperthreading, and all of my engines are deep version . In case of shredder 9 (deep) display shows 100% usage and both line are in top; however in other engines, one graph is higher than the other with the total cpu usage of 50 to 60%. So my question is how we can increase this usage for non-shredder engins for example from 50%-60% to 70 or 80% (again overclocking or changing the affinity doesn't affect this)...thanks, bn On August 06, 2005 at 02:47:01, Rick Hagen wrote: >On August 06, 2005 at 00:49:38, Bahram Namjou wrote: > >>Some of chess engines only use 50% to 60% of cpu according to task manager and >>some use 100% such as shredder. How we can control this? Is it possible to >>increase cpu usage for those engines which only use about 50% of cpu, without >>overclocking or change the affinity (none of them works in this case)...regards > > >What system do you use? >If you are using hyperthreading (P4 with win-XP pro) you will notice that >Shredder 8 (for example) uses two threads, and most other native cb and >uci-engines use 1 thread (or cpu). >If you use Fritz (not the deep version) it will use "50 %" but that's because it >only uses 1 thread. >My advice concerning Shredder (previous to 9 version) is that you only use 1 >thread on a Hyperthreading system. It doesn't play better using Hyperthreading, >at least not at faster time-controls. >You can change this in the engine-parameters. > >If you are using a double-cpu rig, then it's another story of course. >In that case however, be careful when playing a ponder-on match between a single >cpu-engine and e.g. Shredder. > >RickH
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.