Supercomputers/Systems/Conesus
USA · operational · hpc
Conesus
Also known as LLE Conesus
Operated by Laboratory for Laser Energetics .
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
- 2.59 PFlop/s
- Rpeak
- 2.75 PFlop/s
- Rmax ÷ Rpeak
- 94.2%
- Cores
- 43,008
- Power
- 409.25 kW
- Per watt
- 6.3 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 | - Dell PowerEdge C6220 nodes | Dell Technologies | - | Verified | top500.orglle.rochester.edu |
| CPU | - Xeon Platinum 8480+ 56C 2GHz | Intel | - | Reported | top500.org |
| Interconnect | NVIDIA InfiniBand HDR Interconnect Fat tree or dragonfly+ · 200 Gb/s per port · About 0.6 microseconds Infiniband HDR200 | NVIDIA | - | Reported | top500.org |
The read
Dell PowerEdge cluster of 4th-generation Xeon Platinum 8480+ 56C processors on InfiniBand HDR200 at the University of Rochester Laboratory for Laser Energetics, used for 3D inertial confinement fusion simulation. TOP500 lists 43,008 cores, 2.59 PFlop/s Rmax, 2.75 PFlop/s Rpeak and 409.25 kW running TOSS 4 Linux; it ranked 311th in June 2023 (entry recorded here) and 470th in June 2025. LLE states the system was developed with Dell Technologies and Lawrence Livermore National Laboratory, was funded by NNSA, and pairs with the Erie storage system funded by New York State.
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 Conesus, LLE Rochester
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 | NVIDIA InfiniBand HDR |
| lle.rochester.edu | 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.