Earth Simulator
What does the world’s fastest computer do every morning? It simulates the Earth. Yes, the Earth Simulator Center in Japan has the NEC built “ASCI Q” doing climate modelling, simulating the Earth’s climate to predict better about weather in future.
This mega supercomputer built using 640 clustered supercomputers is 41/2 times faster than the nearest competitor. It has about 10 terabytes of RAM and 16Gbps inter-node bandwidth. Nowadays, high-performance machines created using clustered commodity hardware are moving up into the top 10 list of supercomputers. Like the No.5 is built using Linux as the underlying OS. To learn about the competitors, go to Top500 Supercomputer sites.