Sigma - Getting Started Guide

Getting a login account on Sigma

Everyone who is a member of a project that has been granted computing time on Sigma may apply for a login account. See the Getting Access page for more information.

Getting started on Sigma

See the instructions on getting started for information on how to login for the first time.

Sigma has one login node: sigma.nsc.liu.se. Thinlinc is available (connect to sigma.nsc.liu.se).

When you use SSH to connect to Sigma for the first time you will usually be asked by your SSH client if the key fingerprint is correct.

An SSH key fingerprint is a way for you to verify that the computer you are connecting to is really the one you expected, and not a compromised system trying to steal your credentials. We publish the correct key fingerprints here so you can visually check to make sure you are actually connecting to Sigma¹.

SHA256:xH1Cdn7XknkZmALFiVviFn+fuLYUTjvYYetMDHsUSWk sigma.nsc.liu.se (RSA)
SHA256:n/qC19CJCQINPYrAMjw1Z35YpdnWUQt3/5oUVTjlNWc sigma.nsc.liu.se (ECDSA)
SHA256:QPHiQqJNsgfhZ7LtZWZ5bhtRRs1weuOzyPqp2PvIhAE sigma.nsc.liu.se (ED25519)

Using Sigma

Hardware specifications

• Sigma

Accessing the cluster and running jobs

• Security
• Copying data
• Running applications
• Running graphical applications
• Batch jobs and scheduling (including Sigma specific information)
• Flexible job scheduling: increasing the priority or timelimit of a limited number of jobs
• Memory management
• Software documentation

Using the GPU equipped nodes

• Sigma GPU User Guide.

File systems

• File systems