[vtk-developers] Gentle introduction to vtkSMPTools and vision for parallel computing including VTK-m

[David Gobbi]

I grepped the code to see how many classes directly use the old
vtkMultiThreader for SMP.  It's an amazingly small number, because
multithreading was nicely consolidated into base classes like
vtkThreadedImageAlgorithm and vtkStreamer:

    Common/ExecutionModel/vtkThreadedImageAlgorithm.cxx (base class)
    Filters/FlowPaths/vtkStreamer.cxx (base class)
    Filters/Hybrid/vtkImplicitModeller.cxx
    Rendering/Core/vtkImageMapper3D.cxx
    Rendering/Volume/vtkEncodedGradientEstimator.cxx (base class)
    Rendering/Volume/vtkFixedPointVolumeRayCastMapper.cxx
    Rendering/Volume/vtkUnstructuredGridVolumeRayCastMapper.cxx
    Rendering/Volume/vtkVolumeRayCastMapper.cxx

http://www.vtk.org/Wiki/VTK/Replacing_vtkMultiThreader_with_vtkSMPTools

Our GSoC student has been doing a great job updating the
vtkThreadedImageAlgorithm to use vtkSMPTools.  I'll tackle the ImageMapper,
since it's one of my own classes, and I might be able to take a look at the
implicit modeller.

 - David


On Sat, Jun 13, 2015 at 6:28 AM, Will Schroeder <will.schroeder at kitware.com>
wrote:

> FYI- There is a lot of recent work going on in VTK to address parallel
> computing, ranging from multi-core, shared memory approaches (vtkSMPTools)
> to GPU's and co-processors (VTK-m), to rewriting algorithms for parallel
> computation. Here's a high-level introduction.
>
> http://www.kitware.com/blog/home/post/915
>
> There's a ton of work to do so if you are interested let's start some
> threads (no pun intended) and coordinate our efforts.
>
> W
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://public.kitware.com/pipermail/vtk-developers/attachments/20150613/fbf9c3b6/attachment.html>