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No. China’s Tianhe-2, also known as MilkyWay-2, does not remain the world’s top-ranked supercomputer. In TOP500’s June 2026 list, China’s LineShine took the No. 1 position with an HPL result of 2.198 exaflops. Tianhe-2 held the top spot from June 2013 through November 2015.
What is the world’s top-ranked supercomputer now?
TOP500’s June 2026 edition ranks LineShine first. Its listed HPL performance, reported as Rmax, is 2,198.40 petaflops per second (PFlop/s), or 2.198 exaflops. The list gives its theoretical peak performance (Rpeak) as 2,735.82 PFlop/s, with 13,789,440 cores and reported power of 42,220 kW. These are figures from TOP500’s June 2026 list, not measurements of Tianhe-2.
Rmax and Rpeak describe different things. Rmax is the achieved result on the High Performance Linpack (HPL) benchmark; Rpeak is theoretical peak performance. TOP500 reports them separately, so they should not be treated as interchangeable measures of a system’s demonstrated benchmark result. See TOP500’s June 2026 list and its June 2026 highlights.
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When did Tianhe-2 hold the No. 1 position?
TOP500 records Tianhe-2 as the world’s No. 1 system from June 2013 through November 2015. That was a substantial run at the top, but it ended; the ranking cannot accurately be described as a current one. TOP500’s historical performance records track the changing rankings.
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Its 2013 result
In its announcement of the 41st TOP500 list in 2013, TOP500 credited development of Tianhe-2 to China’s National University of Defense Technology (NUDT) and reported a Linpack result of 33.86 petaflops. The announcement said the system would be deployed at the National Supercomputer Center in Guangzhou. Read TOP500’s 2013 announcement.
Its later ranking
By the November 2017 TOP500 list, Tianhe-2 (also written “Milky Way-2”) ranked No. 2 with a reported result of 33.86 petaflops. A system’s place in a ranking can change without that fact alone showing whether the system has stopped operating or remains useful. The cited rankings establish historical positions and results, not Tianhe-2’s present operating status. View TOP500’s November 2017 list.
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What do “fastest” and “world’s top” mean here?
For this comparison, “top” means first in TOP500’s ranking by the HPL benchmark result. It is not a claim that one machine is best for every computing task, nor does it mean the same thing as theoretical peak performance. The edition and benchmark matter: LineShine’s figures above come from TOP500’s June 2026 list, while Tianhe-2’s 33.86-petaflop figure was reported in TOP500’s 2013 announcement and again in its November 2017 list.
Is Tianhe-2 still operating?
The cited TOP500 records do not establish whether Tianhe-2 is operating today. They document its rankings, historical benchmark performance, and planned deployment; they are not a current status report. There is also a configuration distinction: the Guangzhou site record describes a later Tianhe-2A configuration, a TH-IVB-FEP cluster using Intel Xeon E5-2692v2 12-core 2.2 GHz processors, TH Express-2, and Matrix-2000. That later configuration should not be assumed to describe every version of Tianhe-2. See TOP500’s Guangzhou site record.
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