1. Step1. Login with user Mobaxter.

 ssh –X username@10.3.0.4 

2. Step2. qsub

qsub jupyterlab-dgx.sh  

Note- this will submit for resource from HPC and walltime

Jupyter Script Demo

How to Create the Script:

1. Run the command -

vim jupyterlab-dgx.sh 

2. Copy and paste the lines below into the script.

3. Adjust the required ncpus and ngpus.

Select the walltime to set a time limit for your work.

Save the script by typing :wq!.

Note – please user minimum ncpus and ngpus as requirement

**************Jypyter Script****************************************

Step3 -- Copy and paste below details in jupyterlab-dgx.sh file

#!/bin/bash  
#PBS -N jupyter_lab  
#PBS -l select=1:ncpus=20:ngpus=1  
#PBS -q dgx  
#PBS -l walltime=12:00:00  
#PBS -o $PBS_O_WORKDIR/jupyterlab.log  
#PBS -e $PBS_O_WORKDIR/jupyterlab_error.log  
# Change to the directory where you want to run Jupyter Lab  cd $PBS_O_WORKDIR  
# Load the Singularity module (if needed)  
# module load singularity  
# Run Jupyter Lab using Singularity with GPU support  
singularity exec --nv /opt/apps/sif/tensorflow_21.12-tf2-py3.sif jupyter lab --no browser --ip=0.0.0.0 --allow-root &> jupyterlab.log  

Step -4 Save the script by typing

:wq!

Step-5 run command

qstat –aw  

(this command help you to see where your job is running –verify you node )

Step-6 now ssh on job node after verify this. Using command

  ssh –X dgx

or

 ssh –X (node name after verify “qstat –aw” command)  

Step -7 find the “jupytherlab.log” file using command

 ls 

or

 ls –a

Step-8 if Available Now Run Command

tail –f jupyterlab.log

Step-9 There you will find a link started with file:///home

Step 10 Copy this link

Step 11 run command

firefox

Step 12 firefox open automatically , now paste this link in search box and wait for your code.

########################################################

Screen Command -

screen command in Linux provides the ability to launch and use multiple shell sessions from a single ssh session. When a process is started with ‘screen’, the process can be detached from session & then can reattach the session at a later time. When the session is detached, the process that was originally started from the screen is still running and managed by the screen itself. The process can then re-attach the session at a later time, and the terminals are still there, the way it was left. Syntax:

screen [-opts] [cmd [args]]

screen -ls    ( to check screen is created or not)

screen -S   ( to created screen file for save screen status)

Note - after this step run your script job

screen (to create screen ) 

screen -ls (to check)

If job screen on attached mode you need to do this on detached

screen -d   

or you can use

 screen -d 

exit from terminal using exit command must check screen -ls job status detached

exit

########################

If you want to again same screen on terminal

screen -ls 

screen -a 

or u can use

screen -a

Now you can work on the same screen………………….

• ●screen: It will start a new window within the screen.

• screen
• ●-S: It will start a new window within the screen and also gives a name to the window. It creates a session which is identified by that name. The name can be used to reattach screen at a later stage.

• ● screen -S file

  
• ●-ls: It is used to display the currently opened screens including those running in the background. It will list all the attached as well as detached screen sessions.

• ● screen -ls

  
• ●-d: It is used to detach a screen session so that it can be reattached in future. It can also be done with the help of shortcut key Ctrl-a + d

• ● screen -d 1643

  Here 1643 is the screen id we want to detach.
• ●-r: It is used to reattach a screen session which was detached in past.
• ● screen -r 1643

Note:

To check for the manual page of screen command, use the following command:

man screen

To check the help page of screen command, use the following command:

screen --hel