[vtkusers] algorithm performance

[Gerrick Bivins]

Hi All,
I'm looking for suggestions on how to speed up an algorithm on large unstructured grids, like vtkCutter.
I thought I could build an octree (or similar structure) from the input  and execute the vtkCutter on the octree
but it's not obvious to me how to do it. Is something like this possible?
How can I improve the speed of the algorithm? Performance seems to go down as cell count grows.
Gerrick

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