How many calculations per second can a computer do

In the most recent chart of the world's top supercomputers, published in , the US owned of the top while China owned The US's previous fastest supercomputer, Titan, was ranked fifth. China dominates top supercomputers list. Instead, their hardware is in cabinets. Aurora will need more than of them, and according to Cray, each cabinet is about 4 feet wide, over 5 feet deep, and over 7 feet tall.

Since the cabinets need some space between them, the total area of the system will need to be at least 6, square feet. That means that at a minimum, the Aurora computer will take up more space than a basketball court. Each cabinet will get hot, but Cray says that thanks to liquid cooling, they could keep each cabinet chilly enough to run with a quarter megawatt of power. Since the computing nodes within each cabinet and the cabinets themselves need to be connected to each other, switches and copper and fiber-optic cabling will network it all.

Each cabinet has multiple switches, and each switch contains 64 ports. When the data is flowing from switch to switch, it can travel at a speed of gigabits per second. Picture a fiber-optic cable stretching from a switch on one cabinet to another cabinet, and the data can move at a speed of , megabits per second.

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