[manual] editorialize Jupyter Notebooks section

doc/scheduler-scripting.tex

@@ -571,53 +571,73 @@ \subsubsection{Graphical Applications}
 
 % ------------------------------------------------------------------------------
 \subsubsection{Jupyter Notebooks}
+\label{sect:jupyter}
+
+This is an example of running Jupyter notebooks together with Singularity
+(more on Singularity see \xs{sect:singularity-containers}).
+Here we are using one of the OpenISS-derived containers (see \xs{sect:openiss-examples} as well).
 
-This is an example of running Jupyter-Notebooks.
 \begin{enumerate}
 \item
-Use the \option{--x11} with \tool{salloc} or \tool{srun}:as described in the above example
+Use the \option{--x11} with \tool{salloc} or \tool{srun} as described in the above example
+
 \item
 Load Singularity module
 \verb+module load singularity/3.10.4/default+
+
 \item
-Execute this Singularity command
+Execute this Singularity command on a single line. It's best to save it in a shell script
+that you could call, since it's long.
+\scriptsize
 \begin{verbatim}
 srun singularity exec -B $PWD\:/speed-pwd,/speed-scratch/$USER\:/my-speed-scratch,/nettemp \
  --env SHELL=/bin/bash --nv /speed-scratch/nag-public/openiss-cuda-conda-jupyter.sif \
  /bin/bash -c '/opt/conda/bin/jupyter notebook --no-browser --notebook-dir=/speed-pwd \
  --ip="*" --port=8888 --allow-root'
 \end{verbatim}
+\normalsize
+
 \item
-Create an ssh tunnel between your computer and the node (speed-XX) where Jupyter is running (Using speed-submit as JumpServer) (Preferably: Putty)
+Create an \tool{ssh} tunnel between your computer and the node (\texttt{speed-XX}) where Jupyter is
+running (Using \texttt{speed-submit} as a ``jump server'') (Preferably: PuTTY, see \xf{fig:putty1} and \xf{fig:putty2})
 \begin{verbatim}
 ssh -L 8888:localhost:8888 speed-XX
 \end{verbatim}
 Don't close the tunnel.
+
 \item
-Open a browser, and copy your Jupyter's token
+Open a browser, and copy your Jupyter's token, in the screenshot
+example in \xf{fig:jupyter}; each time the token will be different,
+as it printed to you in the terminal.
+
+\small
 \begin{verbatim}
 http://localhost:8888/?token=5a52e6c0c7dfc111008a803e5303371ed0462d3d547ac3fb
 \end{verbatim}
+\normalsize
+
+\item
+Work with your notebook.
+
 \end{enumerate}
 
 \begin{figure}[htbp]
 	\centering
-		\includegraphics{images/putty1.png}
+	\fbox{\includegraphics{images/putty1}}
 	\caption{SSH tunnel configuration 1}
 	\label{fig:putty1}
 \end{figure}
 
-
-\begin{figure}
+\begin{figure}[htbp]
 	\centering
-		\includegraphics{images/putty2.png}
+	\fbox{\includegraphics{images/putty2}}
 	\caption{SSH tunnel configuration 2}
 	\label{fig:putty2}
 \end{figure}
 
-\begin{figure}
+\begin{figure}[htbp]
 	\centering
-		\includegraphics[width=1.00\textwidth]{images/jupyter.png}
+	\fbox{\includegraphics[width=1.00\textwidth]{images/jupyter.png}}
 	\caption{Jupyter running on a Speed node}
 	\label{fig:jupyter}
 \end{figure}