Use VTK python with several CPUs


I am using the vtk python module. It is awesome and I love it. I use VTK as a postprocessing tool for computing gradients of vector quantities in large unstructured meshes (typically tens of million cells).

I heard that VTK/Paraview can split the computational load on several CPUs.

Is it possible to use several CPUs to compute the gradients over unstructured meshes via python scripts?
If so, how?
If not, is there any alternative?

Thank you,