LUMI explained

Dates:June 13, 2022
Sponsors:European High-Performance Computing Joint Undertaking, LUMI Consortium
Location:Kajaani, Finland
Architecture:362,496 cores, AMD EPYC CPUs, 10,240 AMD Radeon Instinct MI250X GPUs (144,179,200 cores)[1]
Power:8.5 MW
Space:150 m2
Memory:1.75 petabytes
Storage:117 petabytes
Speed:550 petaFLOPS (peak)
Cost:€144.5 million

LUMI (Large Unified Modern Infrastructure) is a petascale supercomputer located at the CSC data center[2] in Kajaani, Finland., the computer is the fastest supercomputer in Europe.

The completed system consists of 362,496 cores, capable of executing more than 375 petaflops, with a theoretical peak performance of more than 550 petaflops, which places it among the top five most powerful computers in the world.[3] The November 2022 TOP500 ranks LUMI at number five, with a measured performance of 309.1 PFLOPS.[4]

Architecture

The system is being supplied by Hewlett Packard Enterprise (HPE), providing an HPE Cray EX supercomputer with next generation 64-core AMD EPYC CPUs and AMD Radeon Instinct GPUs.[5] [6] LUMI is a GPU based system, and the majority of its computing power comes from its GPU cores, an architecture which was chosen primarily for its cost/performance advantage.[7] The system is equipped with 1.75 petabytes of RAM,[8] [9] [10] and storage includes a 7-petabyte partition of flash storage, combined with 80-petabytes of traditional storage, both based on the Lustre parallel file system, as well as a 30-petabyte data management service based on Ceph. This gives the system a total of 117 petabytes of storage with an aggregated I/O bandwidth of 2 terabytes per second.[11]

Funding

LUMI is co-funded by the EuroHPC Joint Undertaking and the LUMI Consortium, which is composed of the following countries: Finland, Belgium, Czech Republic, Denmark, Estonia, Iceland, Norway, the Netherlands, Poland, Sweden, and Switzerland. The total budget is €144.5 million.[12] [13]

Energy

The computer uses 100% hydroelectric energy, and the heat it generates will be captured and used to heat buildings in the area,[14] [15] making LUMI one of the most environmentally efficient supercomputers in the world.[16] The former UPM paper mill where LUMI is located had only a single 2 minute power outage during its 38 years of operations thanks to the site's reliable connection to the national grid.[17]

Operation

Half of LUMI's capacity belongs to the EuroHPC Joint Undertaking, 20% of which is reserved for industry and SME use.[18] The other half is shared among the LUMI Consortium countries, according to each country’s financial contribution.[19]

By June 2021 pilot projects had been selected for the first run of the CPU partition, scheduled for September 2021, with full operations including the GPU partition planned for 2022.[20]

Naming

The word "lumi" means "snow" in Finnish.[21]

See also

Notes and References

  1. Web site: Archived copy . 2024-07-15 . 2023-10-08 . https://web.archive.org/web/20231008074826/https://www.amd.com/en/products/server-accelerators/instinct-mi250x . live .
  2. Web site: CSC: One of the world's mightiest supercomputers LUMI will lift European research and competitiveness to a new level . Science Business Publishing International SRL . October 21, 2020 . ScienceBusiness . February 14, 2021 . July 15, 2024 . https://web.archive.org/web/20240715090308/https://sciencebusiness.net/network-updates/csc-one-worlds-mightiest-supercomputers-lumi-will-lift-european-research-and . live .
  3. Web site: Black. Doug. 2020-05-01. LUMI: the EuroHPC pre-exascale system of the North. 2021-02-15. insideHPC. en-US. 2020-12-02. https://web.archive.org/web/20201202003446/https://insidehpc.com/2020/05/lumi-the-eurohpc-pre-exascale-system-of-the-north/. live.
  4. Web site: November 2022 TOP500 . 2022-11-19 . www.top500.org . 2022-11-16 . https://web.archive.org/web/20221116115309/https://top500.org/lists/top500/2022/11/ . live .
  5. Web site: Hewlett Packard Enterprise wins $160M+ contract to power one of the world's fastest supercomputers based in Finland to bolster Europe's research in science and unlock economic growth . Hewlett Packard Enterprise Development LP . October 21, 2020 . Hewlett Packard Enterprise . February 13, 2021 . July 19, 2021 . https://web.archive.org/web/20210719084527/https://www.hpe.com/us/en/newsroom/press-release/2020/10/hewlett-packard-enterprise-wins-160m-contract-to-power-one-of-the-worlds-fastest-supercomputers-based-in-finland-to-bolster-europes-research-in-science-and-unlock-economic-growth.html . live .
  6. Elster. Anne C.. The European Factor: From ARM to Atos. 2021-07-09. Computing in Science & Engineering. IEEE. 1. 23. 10.1109/MCSE.2020.3044070. February 26, 2021. 102–105. 2021CSE....23a.102E. 230608538. en-US. 2024-07-15. https://web.archive.org/web/20240715090227/https://ieeexplore.ieee.org/document/9364770. live.
  7. Web site: Maagaard Winther. Cecilie. December 6, 2019. Huge HPC project offers great opportunities but is not without challenges. February 15, 2021. deic.dk. Danish e-infrastructure Cooperation.
  8. Web site: Archived copy . 2024-07-15 . 2023-03-31 . https://web.archive.org/web/20230331131120/https://docs.lumi-supercomputer.eu/hardware/compute/lumig/ . live .
  9. Web site: Archived copy . 2024-07-15 . 2023-03-31 . https://web.archive.org/web/20230331114947/https://docs.lumi-supercomputer.eu/hardware/compute/lumic/ . live .
  10. Web site: Archived copy . 2024-07-15 . 2023-03-31 . https://web.archive.org/web/20230331120640/https://docs.lumi-supercomputer.eu/hardware/compute/lumid/ . live .
  11. Web site: AMD's Next Gen EPYC & Radeon Instinct Powered LUMI Supercomputer Announced For 2021, 550 Petaflops Peak Horsepower . NewAge ADS, LLC . October 22, 2020 . Wccftech.com . February 14, 2021 . July 15, 2024 . https://web.archive.org/web/20240715090308/https://wccftech.com/amd-next-gen-epyc-radeon-instinct-powered-lumi-supercomputer-announced-2021/ . live .
  12. Web site: LUMI: a new EuroHPC world-class supercomputer in Finland . European Commission . October 21, 2020 . EuroHPC . February 14, 2021 . June 10, 2021 . https://web.archive.org/web/20210610152353/https://eurohpc-ju.europa.eu/news/lumi-new-eurohpc-world-class-supercomputer-finland . dead .
  13. Web site: LUMI consortium . 2024-08-21 . LUMI . en-US.
  14. Web site: LUMI Supercomputer Will Start Operations Next Year, Promotes Green Transition . Tabor Communications . November 17, 2020 . HPCwire . February 13, 2021 . December 1, 2020 . https://web.archive.org/web/20201201032923/https://www.hpcwire.com/off-the-wire/lumi-supercomputer-will-start-operations-next-year-promotes-green-transition/ . live .
  15. Web site: Be prepared for Euro-HPC resource LUMI Karolinska Institutet. 2021-07-09. staff.ki.se. en. 2021-07-09. https://web.archive.org/web/20210709184144/https://staff.ki.se/be-prepared-for-euro-hpc-resource-lumi. live.
  16. Web site: 27 October 2020. LUMI supercomputer will now be built. Swedish Research Council. 2021-07-09. 2021-07-09. https://web.archive.org/web/20210709185732/https://www.vr.se/english/just-now/news/news-archive/2020-10-27-lumi-supercomputer-will-now-be-built.html. live.
  17. The pan-European supercomputer of the North. Pekka. Manninen. 1st LUMI Roadshow. EuroCC National EuroHPC Competence Center Sweden. January 22, 2021. July 9, 2021. July 9, 2021. https://web.archive.org/web/20210709191011/http://media.enccs.se/2021/01/LUMI-ENCCS.pdf. live.
  18. Web site: Nordgren. Kaj. June 22, 2021. Finland grants access to startups to supercomputer resources. 2021-07-13. Business Finland. en-US. 2021-07-13. https://web.archive.org/web/20210713090452/https://www.businessfinland.fi/en/whats-new/news/2021/finland-grants-access-to-local-startups-to-the-state-owned-supercomputer-center-csc. live.
  19. Web site: FAQ. 2021-07-13. LUMI. en-US. 2021-07-13. https://web.archive.org/web/20210713085506/https://www.lumi-supercomputer.eu/faq/. live.
  20. Web site: 2021-06-01. LUMI pilot projects selected. 2021-07-09. LUMI. en-US. 2021-07-12. https://web.archive.org/web/20210712010829/https://www.lumi-supercomputer.eu/lumi-pilot-projects-selected/. live.
  21. Book: Alanne, Severi. Severi Alanne. Suomalais-Englantilainen Sanakirja - Finnish-English Dictionary. 1919. Tyomies Publishing Company. Superior, Wisconsin. 343.

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