I know this post is a couple of years old now, but my company is also interested in doing off-screen OpenGL rendering with hardware acceleration on the Nvidia Tesla cards at Amazon Web Services. In searching through the AWS forum, the party line seems to be:
“Under Linux, OpenGL can be made to work on the Tesla M2050s in cg1.4xlarge, but it is not officially supported by NVIDIA.”
It sounds like you were successful in making OpenGL work on the Tesla s2050. Did you run into any more problems? How far did you take the project? Are you still doing rendering on Amazon Web Services? Do you know of others who are doing the same? I'd appreciate any guidance you can give me.