The US now has the two fastest supercomputers in the world

The world’s two fastest supercomputers are now American, according to the rankings that are released biannually. The two computers, Summit and Sierra, both use IBM technology.Summit was crowned the world’s fastest computer back in June when it performed the mathematical test LINPACK at 122.3 petaflops per second. (Each petaflop is one quintillion math operations.) Since then, it’s received more upgrades, and it can now perform the test at 143.5 petaflops per second, giving it