[vtkusers] vtkMultiThreader question

[Chauvin, Laurent,Ph.D.]

Hello,

I’m trying to use a vtkMultiThreader to compute several thing in parallel.
However I’m not sure how it works.

Here is what I did.
I created a single method that calculate some metric pairwise. So I have 2 for loops in this method.
What I want to do, is to have one thread per iteration (kind of), so I can calculate all metrics simultaneously.

So I created a vtkMultiThreader and set the single method, which contains the loops, and executed it. However when I do that, I can only see one core working. I thought SingleMethod was using multiple thread to run this method. Is it true ? Why then it is not using all my other cores ?

Should I put the loops out of the single method then, and spawn a thread for each iteration, with different data as input ?

Thank you very much.
-Laurent


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