[vtkusers] 3D Delaunay triangulation (vtkDelaunay3D) multithreading / multi cpu support

[Berk Geveci]

vtkDelaunay3D is not an imaging filter so the 'advertisement' holds
true. To my knowledge, among the filters in VTK/Graphics only 1 or 2
are multi-threaded. Yes, it should be possible to parallelize
vtkDelaunay3D for shared memory and yes, if someone wants to have a
student/intern give a shot at it, it would be great. The same holds
for all other non-threaded filters :-)

-berk

On Wed, Jun 3, 2009 at 11:44 AM, kleistereimer <kleistereimer at gmx.de> wrote:
> hi list!
>
> vtkDelaunay3D seems to not support multiple cores/processors by use of
> multithreading. at least on my machines only one processor core is maxed
> out running vtkDelaunay3D on large pointclouds.
>
> vtk 'advertises':
> "Most imaging filters are multi-threaded for parallel execution "
>
> but this seems not true for vtkDelaunay3D. (?)
>
>
> i looked into vtkDelaunay3D.cxx and could find no trace of multithreaded
> code as well.
>
>
> but it should be possible to run the delaunay algorithm with multiple
> threads i guess.
>
>
> a "google summer of code" task?
>
>
>
> can someone confirm or otherwise shed some light in here please?
>
> is it possible? does it scales? would it be worth the effort?
>
>
>
> thanks,
>
> kl
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