The beowulf CD has the RPMS for this program, however I found that they were much slower that the normal program for some reason. For this reason I decided to compile POVray from source after applying the PVM patches. Apply the patch by executing the inst-pvm script. Now su to become the root user temporarily and type make install to install the library. Type exit to become the normal user again.
Type make test .
When complete, issue the su command again and type make install . Type exit to become the normal user again. Copy this to your main home directory. Now repeat this on the remaining machines. I suggest going to the POVray benchmarking site and downloading the skyvase.pov file for your first rendering.