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The European High Performance Computing Joint Undertaking (EuroHPC JU)
Press release21 October 2020European High-Performance Computing Joint Undertaking3 min read

LUMI: a new EuroHPC world-class supercomputer in Finland

The procurement contract of LUMI, a new EuroHPC precursor to exascale supercomputer, has been signed by the European High Performance Computing Joint Undertaking (EuroHPC JU) and the company Hewlett Packard Enterprise, the selected vendor.


As of mid-2021, LUMI (Large Unified Modern Infrastructure) will be a top-of-the-range pre-exascale supercomputer, capable of executing more than 375 petaflops or more than 375 million billion calculations per second, with a theoretical peak performance of more than 550 petaflops per second. Thanks to this massive computational capacity, this new HPC system, located in the CSC’s data center in Kajaani (Finland) will rank amongst the world’s top supercomputers. 

Today, a press conference took place in Finland with video greeting of Annika Saarikko, the Minister of Science and Culture, Pirjo Kutinlahti, Ministerial Advisor at the Ministry of Economic Affairs and Employment of Finland, Kimmo Koski, CSC's Managing Director and representatives of Finnish researchers and industry to celebrate the signature of the LUMI contract and the start of the operational phase.

On this occasion, Anders Dam Jensen, the Executive Director of the EuroHPC Joint Undertaking stated:

The signature of this contract represents a major step forward for European innovation and competitivity. Once operational in mid-2021, the LUMI supercomputer will be one of the most competitive and green supercomputers in the world! Such leadership-class system will support European researchers, industry and public sector, in better understanding and responding to complex challenges and transforming them into innovation opportunities in sectors like health, weather forecasting or urban and rural planning.”

Khalil Rouhana, Deputy Director-General of the Directorate‑General for Communications Networks, Content and Technology (DG Connect) of the European Commission added:

"Today we mark an important step forward in the realisation of the European High Performance Computing strategy. The pre-exascale supercomputer hosted by the LUMI consortium will be among the top 5 in the world. Together with the other EuroHPC pre-exascale and petascale supercomputers that will be deployed in 2021, LUMI supercomputer will help Europe’s public and private users address many daunting research and innovation problems across different areas from weather and climate change through cybersecurity to drug discovery and personalised medicine. LUMI supercomputer aligns the Digital and Green Deal policies of the European Commission, using 100% renewable carbon neutral energy. Moreover, the heat generated will provide 20 percent of the district heat of the area, being one of the most efficient supercomputers  in the world."

CSC's Managing Director Kimmo Koski concluded:

The investment will make CSC data centre one of the world’s largest players in the field of HPC. The joint procurement process with the EuroHPC Joint Undertaking and ten European countries has proceeded on schedule despite the global pandemic. LUMI's astonishing computing power combined with a very modern artificial intelligence platform and data management infrastructure will help European researchers tackle unforeseen research questions.”

LUMI is co-funded with a total budget of EUR 144.5 million by the EuroHPC JU and the LUMI Consortium, which is composed of the following countries: Finland, Belgium, Czech Republic, Denmark, Estonia, Iceland, Norway, Poland, Sweden, and Switzerland.

As half of the total investment comes from the EuroHPC JU, half of the LUMI computing resources will be allocated to EuroHPC users, following open periodic and peer-reviewed calls to which all eligible European users may participate. Up to 20% of the EuroHPC resources will be available to industry and SMEs.

Important efforts to minimise the environmental impact of the new infrastructure have been made. As a result the data center of LUMI will use renewable electricity and its waste heat will be used in the district heating network of Kajaani. The LUMI waste heat will account for about 20 percent of the district heating in Kajaani and will reduce the entire city’s carbon footprint.


Hewlett Packard Enterprise has been selected following a call for tender launched in November 2019.

The computing power of LUMI will soon be complemented, once all the procurement processes are completed, by two additional EuroHPC pre-exascale supercomputers located at the following supercomputing centres:

and five EuroHPC petascale supercomputers to be built in the following supercomputing centres:


More information


Publication date
21 October 2020
European High-Performance Computing Joint Undertaking