vtkMaskPoints hangs in parallel, if MaximumNumberofPoints < number of processes

Hello there,

attached script demonstrates a bug in vktMaskPoints in PV 5.6.1 / VTK.

In the script, I request 2 points and enable ProportionallyDistributeMaximumNumberOfPoints.

mpirun -np 2 pvbatch mask_points_bug.py, I get 2 points as expected. But running with 3 cores makes Paraview waits forever indicating an MPI issue.

Turning off ProportionallyDistributeMaximumNumberOfPoints results in 2 points*number of processes as expected for any number of cores selected.

So I think the algorithm to ProportionallyDistributeMaximumNumberOfPoints has an issue. Could it be fixed such that I always get 2 points regardless of how many cores I use?

Best regards, Axel

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