Log in to Rackham¶

There are multiple UPPMAX clusters one can log in to. Here we describe how to log in to Rackham.

Prerequisites describes what is needed before one can access Rackham
Which way to login?

There are multiple ways to log in to Rackham:

Login	Description	Screenshot
Website	Remote desktop, no installation needed, slow
Terminal	Console environment, recommended
Local ThinLinc client	Remote desktop, recommended, need installation

Here is a decision tree, to determine which way to log in:

flowchart TD
  need_gui(Need to run a graphical program?)
  use_terminal[Use a terminal]
  use_website[Use the remote desktop website]
  need_easy_or_speedy(Need easiest or fastest?)
  use_local[Use a local ThinLinc client]

  need_gui --> |no| use_terminal
  need_gui --> |yes| need_easy_or_speedy
  need_easy_or_speedy --> |easiest| use_website
  need_easy_or_speedy --> |fastest| use_local

  how_login(How to log in?)

  use_password[Use password. Start here]
  use_ssh_keys[Use SSH keys. No more password needed]

  use_terminal --> how_login
  how_login --> use_password
  how_login --> use_ssh_keys

The procedures can be found at:

Login to the Rackham remote desktop environment using the website
Login to the Rackham console environment with a password. If you want to get rid of using a password every time, see login to the Rackham console environment with an SSH key
Login to the Rackham remote desktop environment using a local ThinLinc client

After login, you will be on a login node.

How to behave on a login node

On a login node, one can and should do simple things only: it is a resource shared with all other users on that node.

If you need to do more intense calculations, use the Slurm job scheduler.

If you need to do more intense calculations interactively, use an interactive node.

Log in to Rackham¶

Which way to login?¶