CUDA visualization without OpenGL


I am CUDA beginner and this is my situation at my University:
I am using a cluster of 16 CUDA enabled nvidia cards, that are behind a head node. This head node does not have any dedicated graphics card to see any of the visualizations (for now I am trying the SDK samples). I can run the normal CUDA code and everything is fine except that there is no way for the visualizations.

I was wondering whether there is a way to save the CUDA visualization as a video etc? all suggestions are welcome.

Thank you

How do you generate your output without tying in DISPLAY? just curious.