Filed under china-tech.

China's exascale push against GPUs · what LineShine's interconnect says about post-NVLink fragmentation

LineShine, which debuted atop the June 2026 TOP500, is the first system to exceed two exaflops of sustained double-precision performance without GPU accelerators. It was built under US export controls from indigenous Arm processors, on-package HBM, and a custom fat-tree fabric called LingQi. The ranking is the least of it: China has closed the interconnect gap that sovereign exascale programmes could not paper over, and the scale-up fabric market is now genuinely fragmented.