[osg-users] ssh and osgdem

Robert Osfield robert.osfield at gmail.com
Thu Jul 10 05:45:46 PDT 2008


Hi JP,

osgdem requires a graphics context to enable it to do OpenGL texture
compression.

Do your slaves have a OpenGL support?

Robert.

On Thu, Jul 10, 2008 at 12:53 PM, J.P. Delport <jpdelport at csir.co.za> wrote:
> Hi,
>
> I've set up a cluster to test out vpb. I've created a machine pool file and
> I can now see that the master node executes e.g.:
>
> ssh node01 "osgdem --run-path /home/jpd/terrain -s build_master.source
> --record-subtile-on-leaf-tiles -l 1 --task tasks/build_root_L0_X0_Y0.task
> --log logs/build_root_L0_X0_Y0.log"
>
> (The node has access to the data, passwordless ssh works ...)
>
> The tasks fail, so I logged into the remote node using ssh (with and without
> -X) and ran the command manually.
>
> I get:
> No protocol specified
> Error: Unable to open display ":0.0".
>
> in both cases.
>
> I assume this is because osgdem wants to create a graphics context.
>
> Will osgdem run with X11 forwarding? If not, how does one start a remote
> process so that it has access to the X server on the node which it is
> running?
>
> thanks
> jp
>
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