Accessing the cluster

To log in to PEARL you must have an SSH key and an SSH client. If you are using either Linux or macOS then you should already have a command line SSH client available to you. If you are using Windows then you will need to install a client program. We recommend PuTTY.

You will need to have your private key loaded into an SSH agent. Again, Linux and macOS users should have this already installed. For Windows we recommend Pageant.

For instructions on how to generate an SSH key and load it into an agent please see the section on SSH keys.

Logging in

The primary login node is ui.pearl.scd.stfc.ac.uk. From here you can access your home directory, check the status of the cluster and submit and monitor your jobs.

Note

Please do not run computationally-intensive tasks on the login node as this can affect other users.

You are also able to log on to the dedicated data transfer node dtn.pearl.scd.stfc.ac.uk. This machine is solely for enabling the ingress and egress of data to and from the cluster and for this reason you are not able to submit jobs from here.