According to the Top500 list, China contributes 227 systems of the world’s supercomputers compared with 109 of the United States. However, systems in the United States are, on average, more powerful and lead the top 10 with “Summit” and “Sierra,” which have similar architectures with IBM cores and NVIDIA GPUs. China’s Sunway TaihuLight supercomputer is ranked third with a performance of 93.0 petaflops, and Tianhe-2A of the National Supercomputer Center in Guangzhou is now number four. Germany’s SuperMUC-NG ranks number eight. It was built by China’s Lenovo, which produced 140 supercomputers out of the To500. The most energy-efficient system once again is RIKEN’s Shoubu system in Japan.

CAS news release, November 13, 2018