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A VNC desktop session can be started on the compute nodes of Alps vclusters calling the script startvncdesktop, if the latter is available on the selected system. Please note that you will need toinstall a VNC viewer on your local machine as well, like:
- RealVNC Viewer
- TigerVNC Viewer
- TightVNC Viewer
Please search online the instructions to install the VNC viewer, that might depend on your local operating system.
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- Please check the availability of
startvncdesktopon the selected system with the commandwhich startvncdesktop - Submit Adjust the following Slurm jobscriptbatch script, that targets the system
Eiger.Alpsas an example an example and provide an<executable>Code Block language shell #!/bin/bash # # VNC desktop on a compute node of Alps # # 1 node, 1 task per node # #SBATCH --job-name="vncdesktop" #SBATCH --output=vncdesktop.out #SBATCH --nodes=1 #SBATCH -t 1:00:00 #SBATCH -C mc&startx #SBATCH --account=csstaff if [ ! -e $HOME/.vnc/passwd ] ; then echo "For your protection, please run 'vncpasswd' before using vnc" exit 1 fi echo "VNC Server accepting connections on 5901" echo "OnPlease client machine choose a local free port (e.g. 60010) on the client machine and run: the commands below" echo " ssh -f -L 60010:${HOSTNAME}:5901 -J $USER@ela.cscs.ch $USER@eiger.cscs.ch sleep 3600" echo " vncviewer localhost:60010" echo " You may use any available non-privileged port on your system in place of 60010." sync srun -n1 /usr/local/bin/startvncdesktop 1920x1080 {code}<executable>
- Once the job has started, you should check the Slurm output file and follow the instructions on your local (client) machine to connect remotely to the compute node allocated by Slurm on the selected system
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