Supercomputers/Systems/Firefly (HCC)
USA · operational · hpc
Firefly (HCC)
Also known as Firefly; Holland Computing Center Firefly
Operated by Holland Computing Center .
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
- 21.50 TFlop/s
- Rpeak
- 25.78 TFlop/s
- Rmax ÷ Rpeak
- 83.4%
- Cores
- 4,604
- 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 | - Dell PowerEdge SC1435 cluster | Dell Technologies | - | Reported | top500.org |
| CPU | - AMD Opteron dual-core 2.8 GHz, 4,604 cores | AMD | - | Reported | top500.org |
The read
Dell PowerEdge SC1435 Opteron cluster of the Holland Computing Center in the Peter Kiewit Institute at the University of Nebraska Omaha. TOP500 lists 4,604 Opteron dual-core 2.8 GHz cores on InfiniBand running Linux at 21.50 TFlop/s Rmax and 25.78 TFlop/s Rpeak, 43rd in November 2007, then 81st, 155th, 298th and 470th in November 2009, its last appearance. A Wikipedia article on Firefly gives the November 2007 rank and a December 2007 dedication but describes the later, upgraded configuration, so only the TOP500 hardware figures are used here. TOP500 and Wikipedia are the only sources, 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
- 2026-10-09 Added Firefly (HCC)
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 |
|---|---|---|
| en.wikipedia.org | names system only | - |
| top500.org | names system only | - |
Checked 2026-10-09 by pnpm verify. Re-run it and the table changes with the web.