[Insight-developers] how can I verify that my code runs on several processors ?

[Gaetan Lehmann]

Hi,

I'm trying to measure the performances of the filter I'm writing on a  
server with 4 processors. I'm quite surprise to see that using several  
threads seem to decrease the performances, as it do on a host with a  
single processor.
How can I verify that the different threads are running on several  
processors ? It's not fully related to ITK, but I hope someone will be  
able to answer that question on this list :-)

I'm running my tests on linux.

Thanks,

Gaetan


-- 
Gaëtan Lehmann
Biologie du Développement et de la Reproduction
INRA de Jouy-en-Josas (France)
tel: +33 1 34 65 29 66    fax: 01 34 65 29 09
http://voxel.jouy.inra.fr