At first glance, the answer is granted. The United States stand out in this strategic sector. The top two spots on the official Top 500 ranking are held by American computers made by IBM, namely Summit, with its computational power of 148 petaflops (148 million billion calculations a second), and Sierra (94 petaflops), which also contains Nvidia and Mellanox components.
Historically, it was Japan to first compete with the United States in the field of supercomputers, followed by European countries like Germany, Britain, France and Italy. But in the last few years, the situation has changed dramatically. In 2001, China, was not home to a single one of these supercomputers and now boasts 45% of the 500 most powerful supercomputers in the world, while the Americans have seen their share fall year after year to an all-time low of 23%.
So, the People’s Republic does not just lay claim to third and fourth place in the rankings (with its Sunway TaihuLight and Tianhe-2A) it owns 227 of the top 500 supercomputers, against the United States’ 118, Japan’s 29, France’s 18 and Germany’s 16. The Asian giant is making its mark in the most strategically important field in technology (twinned with Artificial Intelligence).