Supercomputers/Systems/Tianhe-2 LvLiang Solution
China · operational · hpc
Tianhe-2 LvLiang Solution
Also known as Tianhe-2 LvLiang; Tianhe Two A; TH-2 Lvliang cloud
Operated by Lvliang Cloud Computing Center at Lvliang Cloud Computing Center Site .
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
- 2.07 PFlop/s
- Rpeak
- 3.07 PFlop/s
- Rmax ÷ Rpeak
- 67.4%
- Cores
- 174,720
- Power
- 997 kW
- Per watt
- 2.1 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 built the Tianhe-2 LvLiang system | NUDT | - | Reported | top500.org |
| Accelerator | Intel Xeon Phi 31S1P Accelerators x86-64 (Knights Corner) · 57C · 1.1 GHz · 22 nm · 270 W Intel Xeon Phi 31S1P coprocessors, 2688 in total | Intel | 2,688 reported | Reported | top500.orgtop500.org |
| CPU | Intel Xeon E5-2692 v2 CPUs x86-64 · 12C · 2.2 GHz · 22 nm · 115 W Intel Xeon E5-2692 v2 12C 2.2GHz, 1792 processors | Intel | 1,792 reported | Reported | top500.orgtop500.org |
| Interconnect | NUDT TH Express-2 Interconnect Fat tree · 160 Gb/s per link · About 1.6 microseconds TH Express-2 interconnect | NUDT | - | Reported | top500.orgtop500.org |
| Operating system | Kylin Linux Operating systems Linux distribution · State-endorsed Chinese distribution Kylin Linux operating system | KylinSoft | - | Reported | top500.org |
The read
A NUDT Tianhe-2 derivative installed in 2014 at the cloud computing centre in Lvliang, Shanxi, ranked 22nd on the November 2014 TOP500 and still listed in November 2023. The TOP500 counts 174,720 cores including accelerator cores; the China TOP100 list (SAMSS, CCF and the 863 programme evaluation centre) records the same 2,071,390 GFlop/s Linpack result on 21,504 host cores with 2,688 Xeon Phi 31S1P coprocessors. It is a separate machine from the Tianhe-2A at Guangzhou.
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
- 2026-10-07 Added Tianhe-2 LvLiang Solution
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 | does not name this system | · counts: 2688 |
| top500.org | names system and part | Intel Xeon E5-2692 v2, Intel Xeon Phi 31S1P, NUDT TH Express-2, Kylin Linux |
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.