Supercomputers/Systems/Volkswagen LX HPC 224Rk-1
Norway · operational · hpc
Volkswagen LX HPC 224Rk-1
Also known as NEC LX HPC 224Rk-1 at Green Mountain
Operated by Volkswagen Group .
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
- 2.78 PFlop/s
- Rpeak
- 3.48 PFlop/s
- Rmax ÷ Rpeak
- 79.9%
- Cores
- 59,520
- Power
- -
- Per watt
- - 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 LX HPC 224Rk-1 | NEC | - | Reported | top500.org |
| CPU | AMD EPYC 9004 (Genoa) CPUs x86-64 · 96C · 2.4 GHz · TSMC N5 · 360 W AMD EPYC 9454 48C 2.75GHz | AMD | - | Reported | top500.org |
| Interconnect | Omni-Path Architecture Interconnect Fat tree · 100 Gb/s per port · About 1 microsecond Intel Omni-Path | Cornelis Networks | - | Reported | top500.org |
| Operating system | Red Hat Enterprise Linux Operating systems Linux distribution · Open source, commercial support subscription Red Hat Enterprise Linux | Red Hat | - | Reported | top500.org |
The read
A second Volkswagen cluster at Green Mountain: an NEC LX HPC 224Rk-1 with AMD EPYC 9454 48C 2.75GHz CPUs, Intel Omni-Path and Red Hat Enterprise Linux, 59,520 cores, Rmax 2.78 PFlop/s and Rpeak 3.48 PFlop/s, first listed at rank 310 on November 2023 and rank 482 on June 2026. The same Green Mountain and Volkswagen statements about the Rjukan crash and wind-tunnel simulation halls apply as for HPC 124Rj-1, with the same caveat that no page ties this machine to a specific hall, so the site is left unlocated and 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
- 2026-10-04 Added Volkswagen LX HPC 224Rk-1, a second NEC cluster at Green Mountain
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 |
|---|---|---|
| greenmountain.no | names system only | - |
| top500.org | names system and part | AMD EPYC 9004 (Genoa), Omni-Path Architecture |
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.