Computation time and dump local/gran/vtk Issues

Hello everyone~

Issure (I):
Thanks very much for your tutorial. Appreciated. However, when I use the command " dump dumpnetwork all local/gran/VTK 200 post/dump*.vtk " to export the local contact information and to convert it into .VTK for paraview analysis, it shows the error as entitled. I am wondering:
(1) Did I use the wrong command (e.g. lack arguments)?
(2) or the VTK is not supported when compiling.

NOTE:
(1) I just used the example of in.packing and add the command line as described before. Hope that you could give me some instruction.
(2) I installed the vtk-7.1.1 and cmake install. However, I cannot find the FIndVTK.cmake in usr/share/cmake3.5/Module. Should this be a problem?

Issure (II)
I am about to simulation a dynamic process, where around 35000 particles with 1mm diameter will be generated in a box with periodic boundaries at two directions. I need to use the servo control to isotropically compress the sample. However, I want all the particles 'calm down' as quiet as 10-10 m/s in motion (maybe with higher damping). I got some questions:
(1) Is there anyone have an idea how long it takes for one trial if single processor is adopted?
(2) If I used the HPCs, the computation cost will be dramatically cut for the 'calm down' process?

Any discussion is welcomed!

Best regards,
lumb