Summit, the US's new supercomputer, is more than twice as powerful as the current world leader.
The machine can process 200,000 trillion calculations per second - or 200 petaflops.
China's Sunway TaihuLight supercomputer, until now the world's most powerful machine, has a processing power of 93 petaflops.
Summit's initial uses will include areas of astrophysics, cancer research and systems biology.
https://www.bbc.com/news/technology-44439515
