China's Lingsheng Supercomputer Tops Global Rankings with 2.19 EFLOPS

China's domestically developed Lingsheng supercomputer has reclaimed the world's No. 1 ranking on the TOP500 list, achieving a sustained double-precision floating-point performance of 2.19 EFLOPS. The announcement was made at the ISC 2026 High Performance Conference in Hamburg, Germany on June 23, marking China's return to the top of global supercomputing after a nine-year interval. The Lingsheng system, built entirely with indigenous Chinese processors and components, represents a significant milestone in China's push for technological self-sufficiency amid ongoing US export restrictions on advanced computing technology. Its performance leap demonstrates that domestically developed chips can compete at the highest levels of scientific computing, capable of handling the most demanding computational workloads in AI training, climate modeling, and fundamental research. The ranking was accompanied by an interview with Turing Award winner Jack J. Dongarra, the University of Tennessee professor who created the LINPACK benchmark used for the TOP500 evaluation. Dongarra noted that China had stopped submitting benchmark data in recent years due to US technology export controls, causing its presence on the list to steadily decline over the past three years. "China has already built quite powerful computers," Dongarra stated, adding that while official submissions stopped, publicly available research papers detail the architectures and capabilities of Chinese supercomputers in significant depth, providing sufficient transparency to the global HPC community. The TOP500 list, maintained for 34 years since 1993, ranks supercomputers by their performance on the LINPACK benchmark — a standard for measuring floating-point computing capability. Dongarra emphasized that the competition remains fierce globally, with nations viewing top-tier supercomputers as critical scientific infrastructure akin to major telescopes or particle accelerators, capable of attracting top scientific talent and enabling breakthrough research. China's return to the top spot signals the effectiveness of its domestic chip development strategy and the continued vitality of its high-performance computing ecosystem, with profound implications for AI training, climate science, drug discovery, materials simulation, and other computationally intensive fields that drive national competitiveness.