LUMI Sweden Fall 2025

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Decided

This round has already been decided by the committee and is not open for proposals.

This round gives access to the Swedish share of the pan-European supercomputer LUMI in the EuroHPC programme during 2026.

See further information.

Resources

Resource	Centre	Total Requested	Upper Limit	Default Storage	Available	Unit	Note
LUMI-C	LUMI Sweden	155 900	—		78 000	x 1000 core-h	LUMI-C is for CPU computing.
LUMI-C allocations are for the whole project duration. They are not per month as on other NAISS resources. LUMI is a general computational resource hosted by CSC in Finland. LUMI, Large Unified Modern Infrastructure, is an HPE Cray EX supercomputer consisting of several partitions targeted for different use cases. The largest partition of the system is the LUMI-G partition consisting of GPU-accelerated nodes using AMD Instinct GPUs. In addition to this, there is a smaller CPU-only partition LUMI-C that features AMD Epyc CPUs and an auxiliary partition for data analytics with large memory nodes and some GPUs for data visualization. The LUMI consortium countries are Finland, Belgium, the Czech Republic, Denmark, Estonia, Iceland, Norway, Poland, Sweden, and Switzerland. The acquisition and operation of the EuroHPC Supercomputer are jointly funded by the EuroHPC Joint Undertaking and the LUMI consortium. The Swedish Research Council has contributed approx. 3.5% of the funding. A corresponding share of the system is reserved for Swedish research, but researchers are encouraged to apply for resources from the JU part of LUMI and other EuroHPC resources.
LUMI-G	LUMI Sweden	5 875 000	—		3 078 880	GPU-h	LUMI-G is for GPU computing.
LUMI-G allocations are for the whole project duration. They are not per month as on other NAISS resources. LUMI is a general computational resource hosted by CSC in Finland. LUMI, Large Unified Modern Infrastructure, is an HPE Cray EX supercomputer consisting of several partitions targeted for different use cases. The largest partition of the system is the LUMI-G partition consisting of GPU-accelerated nodes using AMD Instinct GPUs. In addition to this, there is a smaller CPU-only partition LUMI-C that features AMD Epyc CPUs and an auxiliary partition for data analytics with large memory nodes and some GPUs for data visualization. The LUMI consortium countries are Finland, Belgium, the Czech Republic, Denmark, Estonia, Iceland, Norway, Poland, Sweden, and Switzerland. The acquisition and operation of the EuroHPC Supercomputer are jointly funded by the EuroHPC Joint Undertaking and the LUMI consortium. The Swedish Research Council has contributed approx. 3.5% of the funding. A corresponding share of the system is reserved for Swedish research, but researchers are encouraged to apply for resources from the JU part of LUMI and other EuroHPC resources.
Storage	LUMI Sweden	12 145 600	—		28 292 320	TB hours
Storage on LUMI is in TB-hours. That is, the amount of storage used integrated over time, not the maximum amount of storage as on other NAISS systems. Project storage for NAISS allocations on LUMI. Storage is applied for using TB-hours. Flash storage, LUMI-F, is accounted at ten times the TB-hour rate, i.e. use of 1TB of Flash storage for one hour costs 10 TB-hours. Lustre storage, LUMI-P, is accounted at the TB-hour rate. CEPH object storage, LUMI-O, is accounted at ½ the TB-hour rate, i.e. use of 1TB of CEPH storage for one hour costs 0.5 TB-hours. The total size of the Swedish part LUMI storage system is 35 412 000 TB-hours.

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