I noticed that whenever I run ocean using the -nograph option, Cadence starts a "null" X server as described in the following link.
I was wondering if there is any way to prevent Cadence from starting X server when running ocean. I am trying to run a bunch of ocean jobs at the same time in multiple compute nodes that do that support graphical modes. The problem is that I can't run ocean in these compute nodes because it wants to start an X server. It's very difficult for me to change these compute nodes to support graphics since these nodes are meant to run batch jobs that do not require graphics. Any help is appreciated in solving this. Thank you very much.
I suggest you contact customer support via your support channel (I'm not sure how that works for North American universities, since I'm in Europe). It's hard to debug without more detailed discussions, and that's something best handled via customer support.