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To access a supercomputer, users have a Pawsey account, comprising a username and a password. The account must also be a member of an active project allocation on the selected supercomputer. For new users, an account creation email with instructions is sent when you receive an allocation or are added to a project.

Introduction

Pawsey supercomputers are accessed remotely through the SSH protocol. Most of the time users employ the ssh command-line tool installed on their computers, which allows executing commands through a terminal window; other programs implementing the SSH protocol may be used. To execute programs that display a graphical interface you can use X forwarding over SSH.When a connection is established with any of our systems, it is to a login node. Login nodes are the "front desk" of the system, and they allow users to manage their workflows, edit files, and submit jobs to the scheduler to be executed on the compute nodes. The compute nodes are where the main computations are processed and they can be accessed through the different queues or partitions managed by the scheduler. These concepts are illustrated in figure 1.Figure 1 illustrates some components of a supercomputer

Use SSH to connect to a supercomputer

Within As detailed above, within many supercomputers, the nodes on which user jobs are run, often referred to as "compute" nodes, will NOT be directly accessiible from the outside world.

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Logging in to such "front-end" nodes at Pawsey requires users to run an SSH (Secure Shell) client on their local machine.

To execute programs that display a graphical interface you can use X forwarding over SSH.

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