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In the context of HPC, a job is a task (a program or script) that you ask the computer to run. Jobs are managed by a scheduler that accepts submissions from all cluster users and works out when and on which resources the job will run. When you connect to the cluster, you connect to a login node or master node. Jobs are not run on the login node as the high resource demand of the job would hinder the functionality of this node, which is to provide access to your files, and accept job submissions. Instead, your jobs should be run on the compute nodes by submitting a request to the scheduler and allowing the scheduler to allocate a compute node (or nodes) for your job execution and executing the job when the nodes are available. Jobs can take two forms: interactive and non-interactive. An interactive job