Supercomputers/Systems/Vilje
Norway · decommissioned · hpc
Vilje
Operated by NTNU at NTNU (Vilje site) .
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
- 396.70 TFlop/s
- Rpeak
- 458.60 TFlop/s
- Rmax ÷ Rpeak
- 86.5%
- Cores
- 22,048
- Power
- 537 kW
- Per watt
- 0.7 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 | - SGI Altix ICE X (Altix 8600) | SGI HPENYSE
rolls up to Hewlett Packard Enterprise | - | Verified | top500.orgsigma2.no |
| CPU | Intel Xeon E5-2670 CPUs x86-64 · 8C · 2.6 GHz · 32 nm · 115 W Xeon E5-2670 8C 2.6GHz (Sandy Bridge), two per node | Intel | - | Verified | top500.orgsigma2.no |
| Interconnect | Mellanox InfiniBand FDR Interconnect Fat tree · 56 Gb/s per 4x port · About 1 microsecond FDR InfiniBand | Mellanox NVDANASDAQ
rolls up to NVIDIA | - | Verified | top500.orgsigma2.no |
The read
SGI Altix ICE X (marketed as Altix 8600) procured in 2012 by NTNU together with the Norwegian Meteorological Institute and Sigma, 44th on the June 2012 TOP500 and used for operational weather prediction as well as national research. TOP500 and Sigma2 agree on SGI hardware with two 8-core 2.6 GHz Sandy Bridge Xeons per node on FDR InfiniBand; TOP500 lists 22,048 cores and 396.7 TFlop/s Rmax, while Sigma2 counts 22,464 cores in 1,404 nodes and 44 TB of memory. Sigma2's history page says it was decommissioned in 2021. TOP500 last lists it in November 2016.
Timeline
- 2012 First operational source
- 2012-11 List debut at #56 (November 2012) source
- 2021 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
- 2026-10-02 Added Vilje, NTNU SGI ICE X
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 and part | Intel Xeon E5-2670, Mellanox InfiniBand FDR |
| top500.org | does not name this system | Intel Xeon E5-2670, Mellanox InfiniBand FDR |
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.