Supercomputers/Systems/Tianhe-2A
China · upgraded · hpc
Tianhe-2A
Also known as Tianhe-2, TH-2, Milky Way-2
Operated by National Supercomputer Center in Guangzhou at National Supercomputer Center in Guangzhou.
Phase 1 seed dataset — under review. These rows were compiled by hand from public operator, laboratory and vendor sources, and have not yet been through a second-reader verification pass. Every claim carries its source and a confidence tier; treat anything below verified as a lead, not a citation.
Measured performance
- Rmax
- 61.44 PFlop/s
- Rpeak
- 100.7 PFlop/s
- Rmax ÷ Rpeak
- 61.0%
- Cores
- 4,981,760
- Power
- 18.48 MW
- Per watt
- 3.3 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 | — NUDT | NUDT | — | Reported | nscc-gz.cnfederalregister.gov |
| Accelerator | Intel Xeon Phi 31S1P Accelerators Xeon Phi 31S1P (2013-2017 configuration, superseded) | Intel | — | Reported | nscc-gz.cnfederalregister.gov |
| Accelerator | NUDT Matrix-2000 Accelerators Matrix-2000 (2018 Tianhe-2A configuration) | NUDT | — | Reported | nscc-gz.cnfederalregister.gov |
| CPU | Intel Xeon E5-2692 v2 CPUs Intel Xeon E5-2692v2 12C 2.2GHz | Intel | — | Reported | nscc-gz.cnfederalregister.gov |
| Interconnect | NUDT TH Express-2 Interconnect TH Express-2 | NUDT | — | Reported | nscc-gz.cnfederalregister.gov |
| Operating system | Kylin Linux Operating systems Kylin Linux | KylinSoft | — | Reported | nscc-gz.cnfederalregister.gov |
The read
The clearest natural experiment in export control that this dataset contains. Tianhe-2 shipped in 2013 with Intel Xeon hosts and Intel Xeon Phi accelerators. In 2015 the US added NUDT and the operating centres to the Entity List, blocking the planned Xeon Phi upgrade. The 2018 Tianhe-2A rebuild replaced the American accelerators with NUDT's own Matrix-2000, and the machine got faster. Figures shown are the post-upgrade configuration; the component graph carries both eras.
Timeline
- 2010 Announced source
- 2013-06 List debut at #1 (June 2013) source
- 2013-06 First operational source
- 2015-02 US Entity List addition blocks the planned Intel Xeon Phi upgrade source
- 2018-06 Rebuilt as Tianhe-2A with domestic NUDT Matrix-2000 accelerators source
Public list appearances
Pointers only — rank and edition, linking to the canonical entry. We do not reproduce list tables. See sourcing policy.
Site & facility
National Supercomputer Center in Guangzhou
- Location
- Guangzhou, China
- Cooling
- Air and liquid hybrid
- Commissioned
- 2013