World's fastest supercomputer?

America takes the supercomputer crown from China

China's Next Supercomputer May Spoil America's Plans to Retake TOP500 Crown

According to a news report in People's Daily Online, China is planning to launch a pre-exascale supercomputer this year that could outperform Summit, a US machine developed for the Department of Energy that is expected to top 200 petaflops when deployed later this year.

The Chinese system is being characterized as a "sample machine for China's new-generation exascale supercomputer. " The report says the supercomputer center in Tianjin began development of an exascale supercomputer with the National University of Defense Technology (NUDT) in 2016.

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Explain That Stuff

Supercomputers - A simple introduction and history

Roll back time a half-century or so and the smallest computer in the world was a gargantuan machine that filled a room. When transistors and integrated circuits were developed, computers could pack the same power into microchips as big as your fingernail. So what if you build a room-sized computer today and fill it full of those same chips? What you get is a supercomputer—a computer that's millions of times faster than a desktop PC and capable of crunching the world's most complex scientific problems. What makes supercomputers different from the machine you're using right now? Let's take a closer look!

What is a supercomputer?

Before we make a start on that question, it helps if we understand what a computer is: it's a general-purpose machine that takes in information (data) by a process called input, stores and processes it, and then generates some kind of output (result). A supercomputer is not simply a fast or very large computer: it works in an entirely different way, typically using parallel processing instead of the serial processing that an ordinary computer uses. Instead of doing one thing at a time, it does many things at once.

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New York Times

Move Over, China: U.S. Is Again Home to World's Speediest Supercomputer

The United States just won bragging rights in the race to build the world's speediest supercomputer.

For five years, China had the world's fastest computer, a symbolic achievement for a country trying to show that it is a tech powerhouse. But the United States retook the lead thanks to a machine, called Summit, built for the Oak Ridge National Laboratory in Tennessee.

Summit's speeds, announced on Friday, boggle the mind. It can do mathematical calculations at the rate of 200 quadrillion per second, or 200 petaflops.

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