Log in to Snowy

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

One needs to be allowed to use Snowy. These prerequisites describes what is needed before one can use Snowy.

To make Snowy do a calculation, one needs to log in to a Rackham login node, which is described here.

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.

After logging in, one can

• Start a batch job using Snowy resources
• Start an interactive job

graph LR

  subgraph "Snowy"
    snowy_calculation_node[Calculation nodes]
  end


  subgraph "Rackham"
    login_node[Login node]
  end

  login_node --> |interactive or sbatch| snowy_calculation_node