Rackham's design

Rackham is an (general-purpose) high-performance computing (HPC) cluster.

What is an HPC cluster?

See the UPPMAX page about its HPC clusters.

Or: Rackham is a group of computers that can effectively run many calculations, as requested by multiple people, at the same time. Rackham runs the Linux operating system and all users need some basic Linux knowledge to use Rackham.

Using Linux

Using Linux (and especially the so-called command-line/terminal) is essential to use Rackham. See the UPPMAX page about Linux.

Folder structure

These are the most important folders on Rackham:

General name	Example name	Description	Purpose
/home/[username]	/home/sven	Your home folder	Small/general/personal things
/proj/[project_name]	/proj/uppmax2025-2-262	Your project folder	Work on your project here
/proj/[project_name]/nobackup	/proj/uppmax2025-2-262/nobackup	The folder of your project that has no backup	Folder for intermediate/temporary files

To be able to retrieve (accidentally) lost files, Rackham has backups and snapshots.