MareNostrum 5 (EuroHPC)
Operational; Barcelona Supercomputing Center is recorded as the hosting centre, and no source here establishes who holds or runs the site
MareNostrum 5 is hosted by BSC-CNS at the Torre Girona chapel (UPC Nord campus, Plaça Eusebi Güell 1-3). Total peak 314 PFLOPS FP64 across partitions: General Purpose (Intel Sapphire Rapids, 6,408 nodes, 45.9 PFLOPS), Accelerated (1,120 nodes × 4× NVIDIA Hopper H100 = 4,480 H100, 260 PFLOPS), General Purpose Next-Gen (NVIDIA Grace), and Accelerated Next-Gen (NVIDIA GB200 partition added 2025). Bull SAS / Lenovo procurement.
Source: EuroHPC Joint Undertaking
Dates in site records: Dec 21, 2023 – Jul 10, 2024. Site data: EuroHPC Joint Undertaking.
Ownership and operation
Hosting centre Barcelona Supercomputing Center. The organisation's own statement states that the site hosts the system. “MareNostrum 5 is a pre-exascale EuroHPC supercomputer hosted at BSC-CNS.” source
Recorded operator attribution withheld Barcelona Supercomputing Center. The cited source does not establish that this organisation operates the site. “MareNostrum 5 is a pre-exascale EuroHPC supercomputer hosted at BSC-CNS.” source
Recorded owner attribution withheld EuroHPC JU. The cited source does not establish that this organisation holds title to the site. “MareNostrum 5 is a pre-exascale EuroHPC supercomputer hosted at BSC-CNS.” source
Export controls and government links
The site’s companies and their recorded parents were checked; no export-control designation, sovereign investment or classified jurisdiction was found. Headquarters country is unrecorded for 2 companies, leaving their jurisdiction checks incomplete.
Capacity
Power capacity
No power figure is recorded for this site.
Power for IT equipment
Accelerators
Methods and sources
Ownership roles
Title identifies the legal owner of the site; operation identifies who runs it. AI-hardware ownership follows the catalog’s attribution of the machines inside, whose owner may lease the facility.
Each role requires its own attribution. An operator named in a source supplies evidence of operation only.
Parent companies
Ownership checks start with each company named at the site and follow recorded parent relationships. A company holding several roles is checked once. Its linked company page lists the relationships and their sources; further parents may remain undocumented.
Level 1 identifies a company at the site, level 2 its parent, and each further level another parent. Export-control designations and government investments are assigned to the company concerned.
Missing values
Unrecorded roles remain blank. Findings whose company position is unresolved stay in the list with that position labelled unknown.
Publication limits
Subscription corporate data helps identify parent relationships and sovereign investments. Publication is limited to relationship classes and supporting public sources; licensed records, identifiers and values are withheld.
Related analysis
- MareNostrum 5 (EuroHPC) on the global mapOpens the map at this site’s pin, among the facilities around it.
- MareNostrum 5 (EuroHPC) in the threshold comparisonEach listed site’s estimated compute against regulatory training thresholds, or the reason no estimate is admitted.
- Allied coordination: Ownership chain incompletely recordedThe Allied Coordination Gap Analyzer lists this site under that class of ownership chain.
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