On June 23, the new China supercomputer, LineShine, became the world’s fastest system after topping the latest TOP500 ranking in Hamburg, overtaking the US’ El Capitan with a performance of 2.198 exaflops at the National Supercomputing Centre in Shenzhen.
The achievement highlights China’s growing strength in advanced computing systems and comes as competition between Beijing and Washington over technology leadership continues to intensify. Beyond the ranking, LineShine’s design offers a glimpse into how countries are developing next-generation computing systems for scientific research and AI.
New Supercomputing Leader
China has reclaimed the top position in the global supercomputing race after the LineShine supercomputer surpassed the United States’ El Capitan in the latest TOP500 ranking. Located in Shenzhen, LineShine achieved 2.198 exaflops, allowing it to perform more than 2 quintillion calculations per second.
The result marks the first time a Chinese system has topped the ranking since Sunway TaihuLight in 2017. El Capitan, based at Lawrence Livermore National Laboratory in California, now ranks second, followed by Frontier and Aurora in the US and Jupiter in Germany.
Experts say the latest China supercomputer demonstrates the country’s ability to continue advancing despite US export restrictions on advanced semiconductor technology.
“Export controls may slow China’s access to certain advanced components, but they also provide a strong incentive to develop domestic alternatives,” Jack Dongarra, an emeritus professor of computer science at the University of Tennessee and one of the organisers of the TOP500 list, told Al Jazeera.
“LineShine suggests that China has responded through large-scale investment and hardware-software codesign,” Dongarra said.
CPU-Only Design Stands Out
Unlike most leading supercomputers, LineShine operates entirely with central processing units (CPUs) instead of graphics processing units (GPUs), which are widely used for AI workloads. The achievement is especially significant for exascale computing, as LineShine is the first CPU-only system to surpass 2 exaflops.
According to TOP500, it uses approximately 42.2 megawatts of electricity. Dongarra noted that the ranking measures only one benchmark and should not be viewed as a complete measure of technological leadership.
“Scientific application performance, energy efficiency, software maturity, reliability, ease of use and the ability to support a broad research community are equally important,” Dongarra said.
The ranking comes amid the ongoing China vs US technology rivalry, with both countries investing heavily in AI, semiconductors, and computing infrastructure. Addison Snell, cofounder of Intersect360 Research, said China’s return to the top could influence technology strategies worldwide.
“The ranking of LineShine as the world’s top supercomputer should have a ripple effect in the US, Europe and Japan as countries continue to vie for AI dominance,” Snell told Al Jazeera.
As the world’s fastest supercomputer, LineShine highlights how high-performance computing continues to evolve. The latest China supercomputer underscores the country’s growing role in scientific research and innovation.
The rise of another leading China supercomputer also signals that the global race for technological leadership remains highly competitive, with further advances expected in the years ahead.
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