Tianhe-1A Guangzhou Solution

Also known as Tianhe-1A GZ; Guangzhou Supercomputing Center Tianhe-1A

Operated by National Supercomputer Center in Guangzhou at National Supercomputer Center in Guangzhou .

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: 211.70 TFlop/s
Rpeak: 335.69 TFlop/s
Rmax ÷ Rpeak: 63.1%
Cores: 13,312
Power: 289 kW
Per watt: 0.7 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 YH MPP system built by NUDT	NUDT	-	Reported	top500.org
CPU	Intel Xeon X5670 CPUs x86-64 · 6C · 2.93 GHz · 32 nm · 95 W Intel Xeon X5670 6C 2.93GHz (Westmere-EP)	Intel INTCNASDAQ	-	Reported	top500.org
Interconnect	- NUDT proprietary interconnect with custom GLEX MPI channel	NUDT	-	Reported	top500.org

The read

The first system of the Guangzhou Supercomputing Center, built on the Tianhe-1 technical framework by NUDT with Sun Yat-sen University and the Guangzhou municipal government; Sun Yat-sen University reports construction starting at the end of 2011 and a June 2012 launch. The TOP500 lists only Xeon X5670 CPUs and a proprietary interconnect; it entered the TOP500 at 80th in June 2012 and left the list in November 2015.

Timeline

2012-06 First operational source
2012-11 List debut at #119 (November 2012) source

Public list appearances

Pointers only: rank and edition, linking to the canonical entry. We do not reproduce list tables. See sourcing policy.

#119: TOP500, November 2012 →

Site & facility

National Supercomputer Center in Guangzhou

Location: Guangzhou, China
Cooling: Air and liquid hybrid
Commissioned: 2013

nscc-gz.cn

Change history

2026-10-07 Added Tianhe-1A Guangzhou 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
sysu.edu.cn	names system only	-
top500.org	names system and part	Intel Xeon X5670

Checked 2026-10-09 by pnpm verify. Re-run it and the table changes with the web.