Supercomputers/Systems/Athos
France · operational · hpc
Athos
Operated by EDF .
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: 1263 of 1345 systems have a readable citation that names them, and 56 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
- 352.67 TFlop/s
- Rpeak
- 391.91 TFlop/s
- Rmax ÷ Rpeak
- 90.0%
- Cores
- 18,144
- Power
- 347.27 kW
- Per watt
- 1.0 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 | - IBM System x iDataPlex DX360M4 | IBM | - | Reported | top500.org |
| CPU | Intel Xeon E5-2697 v2 CPUs x86-64 · 12C · 2.7 GHz · 22 nm · 130 W Intel Xeon E5-2697v2 12C 2.7GHz, 18,144 cores | Intel | - | Reported | top500.org |
| Interconnect | Mellanox InfiniBand FDR Interconnect Fat tree · 56 Gb/s per 4x port · About 1 microsecond InfiniBand FDR14 | NVIDIA | - | Reported | top500.org |
The read
EDF R&D's IBM iDataPlex DX360M4 cluster of Intel Xeon E5-2697v2 12C 2.7GHz processors on InfiniBand FDR14, 18,144 cores at 352.67 TFlop/s Rmax and 391.91 TFlop/s Rpeak on 347.27 kW, running Linux. It debuted at rank 92 on the November 2013 list and last appeared at rank 496 on November 2016, which is the basis for the status date; no retirement notice was found.
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
- 2026-10-09 Added Athos
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 E5-2697 v2, Mellanox InfiniBand FDR |
Checked 2026-10-13 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.