c. Create DCV Session

  1. Now connect to your cluster and create a file called desktop.sbatch with the following contents:
#SBATCH -p dcv
#SBATCH -t 12:00:00
#SBATCH -J desktop
#SBATCH -o "%x-%j.out"

# magic command to disable lock screen
dbus-launch gsettings set org.gnome.desktop.session idle-delay 0 > /dev/null
# Set a password
password=$(openssl rand -base64 32)
echo $password | sudo passwd ec2-user --stdin > /dev/null
# start DCV server and create session
sudo systemctl start dcvserver
dcv create-session $SLURM_JOBID

ip=$(curl -s
printf "\e[32mClick the following URL to connect:\e[0m"
printf "\n=> \e[34mhttps://$ip:8443?username=ec2-user&password=$password\e[0m\n"

while true; do
   sleep 1
  1. Submit a job to start a session:
sbatch desktop.sbatch # note the job id
  1. Once the job starts running, check the file cat desktop-[job-id].out for connection details:


  1. Click on the URL to connect to the DCV instance