[Insight-users] multi threading in ITK

[Ruben Schilling]

Hi,

I just wondered, if anybody knew how exactly I enable multi-threading  
in the multi-threading capable filters of ITK? I have seen, that  
these capable filters have a SetNumberOfThreads (int t) method to  
specify the number of threads. However when I set it that way and run  
"top" to monitor my system on the command line I never actually saw  
more than one core busy with my program (I have 2 CPUs each having 2  
processor cores, that I can observe from top).

When I installed ITK in the beginning I didn't specify any special  
options I am aware of. Should I have built ITK in some "multi-thread"  
way, that is a non-default installation procedure? Do I have to  
enable multi-threading in some other way than specifying the number  
of threads I want? The software guide doesn't give much details about  
this, so I hope one of you knows.


Best
Ruben