Supercomputers/Systems/Dawning 4000A
China · operational · hpc
Dawning 4000A
Also known as Dawning 4000A (Shanghai Supercomputer Center)
Operated by Shanghai Supercomputer Center at Shanghai Supercomputer 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: 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
- 8.06 TFlop/s
- Rpeak
- 11.26 TFlop/s
- Rmax ÷ Rpeak
- 71.6%
- Cores
- 2,560
- 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 | - Dawning Information Industry built the Dawning 4000A cluster | Sugon | - | Reported | top500.org |
| CPU | - AMD Opteron 2.2 GHz, 2,560 processors | AMD | - | Reported | top500.org |
| Interconnect | - Myrinet | Myricom | - | Reported | top500.org |
The read
Dawning's 2004 Opteron cluster for the Shanghai Supercomputer Center. TOP500 records 2,560 cores of 2.2 GHz AMD Opteron on Myrinet, 8,061 GFlop/s Rmax and 11,264 GFlop/s Rpeak, ranked 10th in June 2004, with 8 list appearances through November 2007 (https://top500.org/system/173564/). A Digitimes release quotes the same two figures and the 10th place on the 22 June 2004 list, and says the system was destined for the Shanghai Supercomputer Center, but it is trade press that may derive from the list, so the tier is reported. Dawning Information Industry is the former name of Sugon. Status is held as of the last list appearance.
Timeline
Public list appearances
Pointers only: rank and edition, linking to the canonical entry. We do not reproduce list tables. See sourcing policy.
Site & facility
Change history
- 2026-10-09 Added Dawning 4000A
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 |
|---|---|---|
| apps.digitimes.com | names system only | - |
| top500.org | names system only | - |
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.