LUMI: the EuroHPC pre-exascale system of the North

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Tomasz Malkiewicz from CSC

In this video from Supercomputer Frontiers Europe 2020, Tomasz Malkiewicz from CSC presents: LUMI: the EuroHPC pre-exascale system of the North.

The EuroHPC initiative is a joint effort by the European Commission and 31 countries to establish a world-class ecosystem in supercomputing to Europe (read more at One of its first concrete efforts is to install the first three “precursor to exascale” #supercomputers. Finland, together with 8 other countries from the Nordics and central Europe, will collaboratively host one of these systems in Kajaani, Finland. This system, LUMI, will be the one of the most powerful and advanced computing systems on the planet at the time of its installation. The vast consortium of countries with an established tradition in scientific computing and strong national computing centers will be a key asset for the successful infrastructure. In this talk we will discuss the LUMI infrastructure and its great value and potential for the research community.

LUMI supercomputer highlights:

  • At the time of installation, one of the world’s fastest computer systems, the theoretical computing power of more than 200 quintillion calculations per second.
  • Performance more than tenfold compared to Europe’s fastest supercomputer today (Piz Daint, Switzerland).
  • LUMI’s computing power is equivalent to the combined performance to 600,000 of the latest MacBook Pro computers. These would form a 9.3-kilometer tower.
  • Its data reading speed from disk to memory corresponds to the simultaneous operation of 18500 Blu Ray players.
  • LUMI is the size of a basketball court.
  • Storage: over 60 petabytes with a sizeable flash layer providing more than 1 terabytes of bandwidth.
  • Used technologies: The supercomputer achieves its high performance with a large number of nodes with accelerators (GPUs). In addition the system is complemented by a CPU only partition, IaaS cloud services and a large object storage solution.


Machine room construction: September 2019 – October 2020
System procurement: November 2019 – July 2020
System installations: Q4/2020
Operations: Q1/2021-Q4/2026

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