Login Nodes

The login nodes are your entry point to Anunna — the machines you connect to before you do anything else on the cluster.

Connecting

You reach the login nodes by connecting to login.anunna.wur.nl over SSH; you are automatically redirected to a currently valid login server. For step-by-step instructions and client setup (Linux, macOS, Windows/PuTTY), see logging in over SSH.

What the login nodes are for

The login nodes are shared by everyone and are meant for light, interactive work:

• editing files and scripts
• managing and transferring your data (see Data Transfer Methods)
• preparing and submitting jobs

The login nodes are an access point only — they are not for serious CPU- or memory-intensive work. Anything beyond light, interactive use belongs in a job submitted to the scheduler; see Batch Jobs and Interactive Jobs. Heavy work run directly on a login node degrades it for everyone else using it.

See also

• Cluster Architecture Overview
• Compute Nodes
• Scheduler Overview (Slurm)
• Data Transfer Methods