[R] CPU Usage with R 2.1.0 in Windows

[Lukasz Komsta]

Dnia 2005-07-19 20:28, UÅ¼ytkownik Greene, Michael napisaÅ‚:

> Hi,
> 
> I'm using a fairly simple HP Compaq desktop PC running Windows 2K.  When
> running a large process in R, the process "RGUI.exe" will never exceed 50%
> of the CPU usage.

If you have hyperthreading, R catches only one virtual processor (from
two available), being not able to exceed half of total power (100% of
one only). If you want to use full power, you should turn hyperthreading
off, if your BIOS supports such option.

Regards,

-- 
Lukasz Komsta
Department of Medicinal Chemistry
Medical University of Lublin
6 Chodzki, 20-093 Lublin, Poland
Fax +48 81 7425165