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What is EESSI?

Updated version available!

This tutorial was held in Dec 2023, some aspects of it are now outdated.

An updated version of this tutorial was presented in May 2025, see here.

The European Environment for Scientific Software Installations (EESSI, pronounced as "easy") is a collaboration between different European partners in the HPC (High Performance Computing) community.

EESSI logo

EESSI provides a common stack of optimized scientific software installations that work on any Linux distribution, and currently supports both x86_64 (AMD/Intel) and aarch64 (Arm 64-bit) systems, which is distributed via CernVM-FS.

(next: Motivation & Goals of EESSI)