China dominates the top supercomputers list

Jack Dongarra, Sunway TaihuLight System report

China has overtaken the united states to have the most supercomputers in the list of the world’s fastest 500 systems.

The communist countries accounted for 202 of the world of the most high-performance machines, according to the latest Top500 of the investigation.

By contrast, the united states had 143. That marks its lowest level since the bi-annual study began, 25 years ago, but still secured the second place.

Japan is in third place with 35 systems, and Germany fourth with 20.

In the previous study, published in June, the united states still had a lead of 169 supercomputers of China 160.

The reversal of fortunes reflects China increased investment in research and development – according to a recent study, the country represents today about 20% of the total spending on R&D.Scientific studies

Supercomputers are typically large, costly systems featuring tens of thousands of processors designed to carry specialized compute-intensive tasks.

Examples:
studies on climate change
nuclear weapons simulations
oil exploration
weather forecast
The sequencing of the DNA
the modeling of biomolecules

The performance is measured in petaflops (a thousand trillion floating point operations per second).

A flop can be considered as a step in a calculation.

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China, the fastest computer – the Sunway TaihuLight – maintained its leading position in the world faster, performing at 93 petaflops.

By contrast, the united states is the fastest – Titan – is the fifth largest in the world, with a maximum performance of 17.6 petaflops.

The list of authors says the latest figures also indicated that China has surpassed the united States in terms of overall performance, accounting for 35.4% of the total processing power against the united states, by 29.6%.