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Next: Setting up the environment, Previous: Installing X-Windows, Up: Main page

Accessing the Cirrus cluster

Detailed information about the Cirrus cluster can be found in the Cirrus website and in this repo.

Summary:

  • Create SSH key-pair
  • Create SAFE account
  • Accept invite to tc066, you will need to add the public part of an SSH key-pair to the tc066 machine account in SAFE when accepting the invite
  • Create an MFA token for the tc066 machine account on SAFE
  • Login to cirrus using an ssh client with: ssh -i /path/to/your-ssh-private-key your_username@login.cirrus.ac.uk
  • Type your TOTP/MFA code, which only be asked once a day (unless your IP changes, then you'll be asked for another TOTP)

Detailed Instructions:

The steps below will also be sent to your email, with the invite to join the tc066 project.

To get an account on Cirrus, a Tier 2 national HPC service from the EPSRC in the UK, first you'll need an account on SAFE, the Service Administration service ran by EPCC.

You can register for a SAFE account following the steps detailed in the SAFE documentation, please register using the same email address that the invite was sent to.

You will need to accept the invite to join tc066, create an SSH key-pair -- more instructions here -- and add it to the tc066 machine account. The public key will be a file ending in .pub, while the private key will have no extension. You can either upload the public key file, or paste the text the file contains, i.e., copy the output of:

cat /path/to/your/key.pub

You will then need to setup an MFA (multi-factor authentication) method for time based one time passwords (TOTP) and link it to your machine account, see detailed instructions here.

To login, use:

ssh -X -i /path/to/your/ssh/privatekey user@login.cirrus.ac.uk

# for example, for the user "tc066-rfga" using a linux system:
ssh -X -i ~/.ssh/id_rsa_cirrus tc066-rfga@login.cirrus.ac.uk

Note

More details on how to login can be found in the Cirrus documentation and in this repo.

Next: Setting up the environment, Previous: Installing X-Windows, Up: Main page