[vtkusers] vtkMultiThreader question

[Dan Lipsa]

Laurent,
Did you look at the tests that come with this class. Do they work?

http://www.vtk.org/doc/nightly/html/c2_vtk_t_12.html#c2_vtk_t_vtkMultiThreader

Dan


On Fri, Oct 9, 2015 at 5:00 PM, Chauvin, Laurent,Ph.D. <
lchauvin at bwh.harvard.edu> wrote:

> 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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