Supercomputers/Systems/Sator
France · operational · hpc
Sator
Also known as ONERA SATOR
Operated by ONERA .
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
- 579.23 TFlop/s
- Rpeak
- 666.62 TFlop/s
- Rmax ÷ Rpeak
- 86.9%
- Cores
- 17,360
- Power
- 280 kW
- Per watt
- 2.1 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 | - NEC HPC1812-Rg-2 cluster, 18 racks | NEC | - | Verified | top500.orgonera.fr |
| CPU | Intel Xeon E5-2680 v4 CPUs x86-64 · 14C · 2.4 GHz · 14 nm · 120 W Intel Xeon E5-2680v4 14C 2.4GHz, 17,360 cores | Intel | 1,240 estimated | Reported | top500.orgonera.fr |
| Interconnect | Omni-Path Architecture Interconnect Fat tree · 100 Gb/s per port · About 1 microsecond Intel Omni-Path | Cornelis Networks | - | Reported | top500.org |
The read
NEC HPC1812-Rg-2 cluster of Intel Broadwell Xeon E5-2680v4 14C 2.4GHz processors on Intel Omni-Path, 17,360 cores, commissioned by ONERA in 2017 for its engineers' simulation codes. ONERA's page states 17,360 cores, 77.5 TB of RAM, a 667 TFlop/s peak, LINPACK performance of about 579 TFlop/s (566.6 on the same page), 18 racks and 280 kW under LINPACK with hybrid water and air cooling; TOP500 agrees on cores, Rpeak and Rmax (579.23 TFlop/s) and ranks it 343rd in June 2017 and 474th in November 2017. The 280 kW figure is the operator's LINPACK draw.
Timeline
Public list appearances
Pointers only: rank and edition, linking to the canonical entry. We do not reproduce list tables. See sourcing policy.
Change history
- 2026-10-07 Added Sator, a mid-list TOP500 system (2017-06 343)
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 |
|---|---|---|
| top500.org | names system and part | Intel Xeon E5-2680 v4, Omni-Path Architecture |
| onera.fr | names system only | - |
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.