Furthermore, if I open XQuartz normally and try to open the XQuartz terminal nothing happens. Under XQuartz>Applications> there are also "xman" and "xlogo" options that don't do anything when clicked. Previously I remember clicking "xlogo" would open up a small icon of XQuartz in a window. So this seems like something is preventing XQuartz from opening any kind of desktop windows.

Most of the time, you will want to use the node's gpu as a general purpose coprocessor or to render data that will be composited and displayed elsewhere. Use the shared display for this by configuring environment variables to set your DISPLAY and your XAUTHORITY. For example in tcsh use: setenv DISPLAY :0.0; setenv XAUTHORITY /var/gdm/\:0.Xauth  Bringing the display back to your laptop You may want to bring the display from the submit node to your desktop. To do this, use ssh with X forwarding. If it doesn't automatically work, try running ssh -X vnodesub00 to use X forwarding. To bring a display back from a compute node, allocate the node using qsub as discussed in the section about submitting jobs and use a separate terminal and ssh connection with X forwarding to login into the compute node through vnodesub00. For example, try this in the first window: [fmccall@vnodesub00 ]$ qsub -Iqsub: waiting for job 134.vnodescheduler.umiacs.umd.edu to startqsub: job 134.vnodescheduler.umiacs.umd.edu ready In the second window, try: Fritz-McCalls-Computer: fmccall$ ssh -X vnodesub00fmccall@vnodesub00's password: Last login: Wed Apr 12 23:38:57 2006 from somewhere.isp.com[fmccall@vnodesub00 ]$ ssh -X vnode11Last login: Wed Apr 12 17:33:44 2006 from vnodesub00.umiacs.umd.edu[fmccall@vnode11 ]$ xlogo You should see the X Logo on your local screen. Previous Next

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