Dual-core processors question

Victor · 03-20-2007, 09:26 PM

Guys, can anyone tell me how use of several-core processors is controlles? OS - WinXP. Take MATLAB as an example. I thought it can use only one core, I am running it and seeing both cores used but only at 50% load. Why is that?

System utility -- AISuite

[-0MEGA-] · 03-20-2007, 09:47 PM

If it only uses one core, and that one core is being used to its full potential, then the Windows task manager will say your using 50% since the other core is most likely not doing much at all.

And Windows XP and Vista automatically control the number of processes running, and try to keep both sides as close to 50/50 as possible.

03-20-2007, 09:26 PM	#1 (permalink)
Victor Bronze Member Join Date: Sep 2004 Location: New York Age: 29 Posts: 56	Dual-core processors question Guys, can anyone tell me how use of several-core processors is controlles? OS - WinXP. Take MATLAB as an example. I thought it can use only one core, I am running it and seeing both cores used but only at 50% load. Why is that? System utility -- AISuite __________________ ASUS P5B-deluxe E6600 @3,00 (9x333), loaded up to 50 degrees Zalman CNPS9700 2GB Corsair DDR2-800 NVidia Geforce 7600 GT OC 2 x Raptor WD1500 (Raid 0) DVD-RW-DL w Lightscribe (LiteOn), DVD-Rom Samsung, FDD Seasonix S-12 500W PSU Antec P180B

03-20-2007, 09:47 PM	#2 (permalink)
[-0MEGA-] Diamond Member Join Date: Nov 2004 Location: Concord, NH Age: 19 Posts: 26,425	If it only uses one core, and that one core is being used to its full potential, then the Windows task manager will say your using 50% since the other core is most likely not doing much at all. And Windows XP and Vista automatically control the number of processes running, and try to keep both sides as close to 50/50 as possible. __________________ Core 2 Duo E8400 @ 3.83GHz Gigabyte GA-P35-DS3L ATI HD 3870 GDDR4 @ (840/2332) 4GB (2x 2GB) DDR2-850 500GB SATAII HD w/16MB SilverStone 750W +12V@60A 3DMark06: 11593

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