Arrhenius

Host data centre

NAISS, Linköping University

Description

Arrhenius is the new powerful mid-range supercomputer that NAISS has installed together with EuroHPC JU. It entered production in May 2026.

The system was delivered by HPE with the following specifications:

• A HPC partition with 424 AMD Turin 128-core CPUs and 382 GPU nodes, each with four Grace Hopper Superchips from NVIDIA
• One partition for persistent computing and data with a cloud interface
• One partition dedicated to sensitive data
• A fast 29 PB parallel file system for storage

The GPU part has an HPL (High-Performance Linpack) performance of 66.8 PFLOPS which makes Arrhenius the 42nd most powerful supercomputer in the world according to the June 2026 edition of the TOP500 list.

The contract with HPE includes training and collaboration efforts to port and optimise scientific applications to Arrhenius. To ensure timely service and maintenance, HPE also has on-site engineers at NAISS.

The system is named after Swedish geologist and chemist Carl Axel Arrhenius who discovered the mineral gadolinite in 1787.

Detailed technical description

Quick start guide (in our User Area)