P4vasp is a plotting utility for Vasp data, there is more information available on the p4vasp homepage. To set up an environment for p4vasp type in the command
load module chpc/compmech/p4vasp-0.3.30. Please note that p4vasp has been compiled for use on either chpclic1 or chpcviz1, and will not run on a compute node. It may be necessary to use the TurboVNC and VirtualGL interface as described here. Please also consider using Paraview or VisIt as alternative visualizers for Vasp data. Both of these codes allegedly have the ability to handle Vasp data. Please report back to us if you have tried either of them for this purpose.