During the lecture today, I also demonstrated how to submit jobs to the Unicore Testbed. It is very easy to install the client and get running.
If you want to play around with the Persistance of Vision Raytracer, here are my files: The Unicore job definition and the möbius input file.
Please note the Unicore job definition is a hack: it doesn’t exploit many of Unicores features. Of course, you can use any povray input file, and change the povray parameters to generate bigger images. But please keep in mind: this is a demonstration testbed, so please do not hack the system, or generate a lot of traffic.