Supercomputers/Systems/Centennial (ARL)
USA · operational · hpc
Centennial (ARL)
Also known as Centennial
Operated by ARL DSRC .
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
- 2.44 PFlop/s
- Rpeak
- 2.60 PFlop/s
- Rmax ÷ Rpeak
- 93.8%
- Cores
- 73,920
- Power
- 835 kW
- Per watt
- 2.9 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 ICE XA (HPE) | Hewlett Packard Enterprise | - | Reported | top500.org |
| CPU | - Intel Xeon E5-2698v4 20C 2.2GHz | 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
SGI ICE XA system (listed under HPE) at the US Army Research Laboratory DSRC in Aberdeen, Maryland, part of the DoD HPCMP. TOP500 lists 73,920 Xeon E5-2698v4 20C 2.2GHz cores on Infiniband EDR, Rmax 2.44 PFlop/s, Rpeak 2.60 PFlop/s and 835 kW running RHEL 7.2, installed 2017, ranked 53rd in June 2017 and last present at 498th in June 2025 (status_as_of reflects that edition). TOP500's ARL site page also lists Centennial among ARL's notable systems. Both pages are TOP500, so the tier is reported.
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
- 2026-10-02 Added Centennial, the Army Research Laboratory's SGI ICE XA
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 | Mellanox InfiniBand EDR |
| top500.org | names system and part | 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.