[Paraview] Slowness : paraview 3.10.0 & ProgrammableFilter

[Aurélien Marsan]

Hi all,

I perform some calculations in Paraview, through a ProgrammableFilter in
which I use several vtk.vtkArrayCalculator objects that I connect between
each other with GetOutputPort and GetInputConnection.

In the 3.8.1 release of Paraview, such a calculation on a grid with 1.5e6
points need roughly 3 or 4 seconds.
In the 3.10.0, using the same tool (an external module, writen in python,
that I import into the programmable filter), it takes 6 or 7 times longer.

Is there some explanation ?

Thanks,

Aurélien
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