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Sweden’s fastest supercomputer strengthens European research

10 September 2026

Marie-Louise Elebring


The Arrhenius Supercomputer at Linköping University has now been inaugurated. Arrhenius strengthens LiU’s role in Swedish and European research infrastructure and is a resource for researchers in academia, industry and the public sector throughout Europe.

 

En grupp människor som klipper ett band vid en invigningsceremoni. Thor Balkhed
Inauguration of the Arrhenius Supercomputer.
Arrhenius is Sweden’s first supercomputer within the European EuroHPC collaboration and is part of the NAISS national infrastructure hosted by Linköping University. It is considered one of the world’s fastest supercomputers and gives researchers more powerful opportunities to work with advanced simulations, artificial intelligence and large datasets.
The opening ceremony on 8 September was attended by representatives from the Swedish Government Offices, the Swedish Research Council, the EuroHPC and NVIDIA.
“Today, we are not just inaugurating our new supercomputer. We are opening the door to new opportunities for research” said Vice-Chancellor Jan-Ingvar Jönsson in his welcome speech.

Pooling national resources

Arrhenius became operational at the end of May. The ongoing gradual user migration from older systems is scheduled for completion in January 2027. By pooling national computing resources in one place, capacity can be used more efficiently, while support, education and scientific expertise will still be available at higher education institutions and research organisations around the country.
Moreover, Linköping University will play a key role in transforming the advanced infrastructure into new knowledge, technology and solutions to societal challenges.
“The establishment of NAISS at LiU and now Arrhenius shows how research infrastructure creates value: not only by providing access to technology, but by creating communities, skills and new technology collaborations,” says Jan-Ingvar Jönsson.

Strengthening LiU’s role in Europe

For Linköping University, hosting the supercomputer entails long-term responsibility as well as new opportunities. Arrhenius provides LiU researchers with proximity to a national and European research resource and can also contribute to new collaborations, skills and research breakthroughs.
“Through Arrhenius, we give researchers the opportunity to ask questions that cannot yet be answered. This is a responsibility that we at Linköping University are very proud to bear, says Jan-Ingvar Jönsson. 

Facts

The Arrhenius Supercomputer was named after Swedish geologist and chemist Carl Axel Arrhenius, who discovered the mineral gadolinite.

NAISS (National Academic Infrastructure for Supercomputing in Sweden) is an organisation for supercomputers hosted by Linköping University and funded by the Swedish Research Council.
More information available at: naiss.se

The EuroHPC JU was created in 2018 to enable EU coordination and resource pooling to make Europe a world leader in supercomputing. The EuroHPC JU budget for the period 2021–2027 is around 7 billion euros.
More information available at: eurohpc-ju.europa.eu

Ett serverrum fyllt med massor av färgglada kablar. Photographer: Thor Balkhed
The Arrhenius, Supercomputer Campus Valla

Contact

Photo of Jan-Ingvar Jönsson

Jan-Ingvar Jönsson

Vice-Chancellor

Further reading

Green lights on the backside of a supercomputer.

Agreement signed – supercomputer Arrhenius to Linköping

The hosting agreement between NAISS at LiU and EuroHPC JU has been signed. This means that LiU is now officially hosting the European supercomputer Arrhenius, which will become one of the world’s fastest computers.
Data center at National Supercomputer Centre, Campus Valla, Linköping University.

New research supercomputer online

Swedish research has now gained access to the first 600 nodes of the new supercomputer Tetralith, which will be the most powerful computer in the Nordic region when it comes fully online this autumn. Researchers at LiU also have access to Sigma.
Lots of cables connected to a computer.

National Academic Infrastructure for Supercomputing in Sweden (NAISS)

NAISS, the National Academic Infrastructure for Supercomputing in Sweden, is providing researchers with high-performance computing (HPC) resources, storage capacity, and data services.

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