Re: [Condor-users] Executable that produce graphics (e.g. histograms)

["David E. Konerding" <dekonerding@xxxxxxx>]

> > ######################################
> >
> > %cat analysis.error
> > root: can't figure out DISPLAY, set it manually
> >     
>
> This sounds like it is trying to write to your XWIN display which
> isn't goign to be much use in a batch environment.
>
> Try the changes above and see how you get on.
>
>   
I've used Condor with X window applications before.  My solution was to 
start a vncserver on the job host when the
job started, point the application at that display, and then kill the 
vncserver when the job is done.  The only tricky part is
getting authorization to talk to that display; I edited my vncserver 
xstartup script to run an xhost +`hostname` so
that I could connect.  Not incredibly secure, I'm sure somebody who knew 
more about xauth could give a better
solution.

I've also configured cluster nodes that launch the X server at boot time 
and log in as a user and run xhost +`hostname`. 


Dave