Supercomputers/Systems/Fram
Norway · decommissioned · hpc
Fram
Operated by Sigma2 at Sigma2 / UiT (Tromso) .
Phase 1 seed dataset, compiled by hand. These rows were built from public operator, laboratory and vendor sources. A mechanical second-reader pass has since fetched every cited source: 1092 of 1153 systems have a readable citation that names them, and 40 are genuinely weakly sourced. Every claim carries its source and a confidence tier. Treat anything below verified as a lead, not a citation.
Measured performance
- Rmax
- 950.00 TFlop/s
- Rpeak
- 1.08 PFlop/s
- Rmax ÷ Rpeak
- 88.0%
- Cores
- 32,192
- Power
- -
- Per watt
- - GF/W
Figures are as last publicly reported for the configuration described below, not a live measurement. Where a system was upgraded in place, the post-upgrade configuration is shown and the earlier one appears in the timeline.
What this machine is made of
One row per supplier relationship. “Supplier at build” is the company that shipped the part at the time; where that company has since been acquired, the parent it rolls up to today is shown beside it. That distinction is what makes ticker-level aggregation possible across a thirty-year dataset.
| Role | Part | Supplier at build | Quantity | Confidence | Source |
|---|---|---|---|---|---|
| Integrator | - Lenovo NeXtScale nx360 M5 | Lenovo | - | Verified | top500.orghpc.uit.no |
| CPU | Intel Xeon E5-2683 v4 CPUs x86-64 · 16C · 2.1 GHz · 14 nm · 120 W Xeon E5-2683 v4 16C 2.1GHz, two per node | Intel | - | Reported | top500.org |
| Interconnect | Mellanox InfiniBand EDR Interconnect Fat tree · 100 Gb/s per 4x port · About 0.9 microseconds InfiniBand EDR | NVIDIA | - | Reported | top500.org |
The read
Norway's national system at UiT The Arctic University of Norway in Tromso before Betzy, a Lenovo NeXtScale nx360 M5 of just over 1,000 dual-socket nodes on InfiniBand EDR, first listed on TOP500 in June 2017 at rank 154. Sigma2's own history of Norwegian e-infrastructure gives 2016 as the installation year and states it ran until the end of 2025; UiT's own HPC group page independently describes 'over 1000 nodes, each with 32 cores', which matches TOP500's core count for two 16-core Xeon E5-2683 v4 per node without naming the SKU directly, so that edge stays reported rather than verified. It replaced Stallo, an HP system at the same Tromso site since 2008. No power figure was found. TOP500 is the only source for Rmax, Rpeak and core count, so the tier is reported.
Timeline
- 2016 First operational source
- 2017-06 List debut at #154 (June 2017) source
- 2025-12 Decommissioned source
Public list appearances
Pointers only: rank and edition, linking to the canonical entry. We do not reproduce list tables. See sourcing policy.
Site & facility
Change history
- 2026-09-23 Added, Sigma2's predecessor to Betzy at a new UiT Tromso site, with a rank pointer on the edition where it ranked highest
Source check
We fetched this system's own citations and recorded whether each page actually mentions it. This is a corroboration signal, not a fact check, and it is published so you can see how well the sourcing holds up rather than take it on trust.
| Cited source | Result | Found on the page |
|---|---|---|
| sigma2.no | names system only | - |
| top500.org | names system and part | Intel Xeon E5-2683 v4, Mellanox InfiniBand EDR |
Checked 2026-10-09 by pnpm verify. Re-run it and the table changes with the web.
Further reading
Operating a supercomputer
Acceptance testing, why "installed" and "in production" are six months apart, and the machine lifecycle.
Inside a node
Latency-optimised versus throughput-optimised processors, NUMA, and the end of the host-to-device copy.
The interconnect
Topologies, why latency and tail behaviour matter more than bandwidth, and how the fabric market consolidated.