VTKm performance

I’m experimenting with Paraview’s Contour filter.

In the experimental results, when applying the vtkm contour filter (with CUDA), “vtkGeometryReperesentationWithFaces” item takes a very short time (less than 10 ms) in the RenderView update history. However, if i applying the vtkPVContoureFilter, than it takes more than 1 second.

It seems that vtkGeometryReperesentationWithFaces is omitted when using vtkm. In my opinion, because of the vtkm filter uses the GPU, so the execution time of the filter is obviously different, but the rendering time should be similar.

I tested Paraview 5.5 on 16 linux nodes. Please let me know what your thoughts/comments are on this.