JUSTUS2/Software/Julia/VSCode

Setting Up VS Code for Interactive Julia Sessions

Wrapper Script for Module Loading

Using Julia requires loading the module, whcih is not directly supported by the Julia extension of VS Code. Thus we need a wrapper script for this:

Save the following wrapper script e.g. as $HOME/bin/julia_wrapper.sh and make it executable:

#!/bin/bash

## Making module command available
## ------------------------------------------------------------
export MODULEPATH=/opt/bwhpc/ul/modulefiles/Core:/opt/bwhpc/common/modulefiles/Core:/etc/modulefiles:/usr/share/modulefiles:/usr/share/modulefiles/Linux:/usr/share/modulefiles/Core:/usr/share/lmod/lmod/modulefiles/Core

source /usr/share/lmod/lmod/init/profile

## ------------------------------------------------------------

# Load julia
module load math/julia/1.11.3

# Pass on all arguments to julia
exec julia "${@}"

Next, we need to configure VSCode to use the script as Julia executable. You find the corresponding setting at File|Preferences|Settings → Tab “Remote” → Extensions|Julia → setting “Julia: Executable path“

Connect to Nodes

If you don't need considerable CPU resources or memory you can develop your code on the login nodes. If you however need more resources, you must use an interactive job, see BwForCluster_JUSTUS_2_Slurm_HOWTO#How to submit an interactive job?.

You can only connect to the compute nodes via a login node. Therefore you need to adjust your SSH config to use a login node for a proxy jump to the compute node, where your interactive job is running. Thus add the following lines to $HOME/.ssh/config on your PC:

Host n????
        User    YOUR_JUSTUS_USERNAME
        ProxyJump justus2.uni-ulm.de

Please replace YOUR_JUSTUS_USENAME by your username on the cluster.

To avoid to enter repeatedly your password, you should set up an SSH key to login.