Pluto.ji interactive sessions

For new users we recommend running Pluto from our OnDemand Service. However, many researchers find it useful to run their code and develop interactively on the Slurm cluster.

If you are using a Windows computer, this method has currently been tested in VSCode, WSL powershell, and WSL Ubuntu. We have not tested it yet in Putty or Mobaxterm

To run Pluto.ji in interactive mode, first we need to load your interactive session:

srun --account nesi12345 --job-name "InteractiveJob" --cpus-per-task 2 --mem 8G --time 24:00:00 --pty bash

Then, we need to start up Julia and obtain the hostname and the port:

# Load Julia
module load Julia 

# Select a random port
PORT=$(shuf -i8000-9999 -n1)

# Check the hostname and port - we will need this later, you can also 
# see it at the start of your prompt
hostname | cut -d'.' -f1 # <-- This is the hostname
echo $PORT               # <-- This is the port

# Export port to a variable name
export pluto_port=${PORT}

Make a note of the hostname and the port, given by the hostname | cut -d'.' -f1 and echo $PORT commands. Then, we need to start up Julia, install and run Pluto.ji:

#Start Julia
julia

# Install Pluto.ji. This might take a minute
import Pkg; Pkg.add("Pluto")

# Start Pluto. This might take a minute
using Pluto
Pluto.run(host="0.0.0.0",port=parse(Int, ENV["pluto_port"]),launch_browser=false)

Take a note of the information given for the URL

[ Info: Loading...
┌ Info: 
│ Go to http://0.0.0.0:9627/?secret=mXmq6659 in your browser to start writing ~ have fun!
└ 

Here, we will be using http://0.0.0.0:9627/?secret=mXmq6659 to access Pluto.

Next, open up a second terminal on your local machine (or a second screen in tmux or screen), and type the following:

ssh -L PORT:HOSTNAME:PORT mahuika

#For example:
#ssh -L 9627:mc081:9627 mahuika

Then, in your browser, type in the URL from before

http://0.0.0.0:PORT/?secret=SECRET

# For example:
# http://0.0.0.0:9627/?secret=mXmq6659

You will now be able to see and work wih Julia+Pluto in your web browser.