China Beats U.S. For the World's Fastest Supercomputer Title

Add the ‘made in China’ tag to yet another gadget: the world’s fastest supercomputer. China says it has the most powerful computing system — a machine called Tianhe-1A. The supercomputer uses 7,168 NVIDIA Tesla M2050 GPUs (graphics processing units) and 14,336 Intel Xeon CPUs and is capable of clocking 2.507 petaflops or 2,507 trillion floating […]

Add the 'made in China' tag to yet another gadget: the world's fastest supercomputer. China says it has the most powerful computing system -- a machine called Tianhe-1A.

The supercomputer uses 7,168 NVIDIA Tesla M2050 GPUs (graphics processing units) and 14,336 Intel Xeon CPUs and is capable of clocking 2.507 petaflops or 2,507 trillion floating point calculations per second.

The Tianhe-1A will take the top spot from the U.S. Cray XT5 aka ‘Jaguar’ that's at the Oak Ridge National Laboratory in Tennessee. The Jaguar can clock 1.759 petaflops and is built using 37,376 AMD processors.

The Tianhe-1A is interesting because it combines CPU and GPUs -- much like desktop PCs -- to create the world's most powerful machine. In fact, Nvidia, claims if its GPUs weren't used, then it would have taken 50,000 CPUs and twice as much floor space to create a comparable computer.

The Tianhe-1A was designed by the National University of Defense Technology in China and will be operated as an open access system for large scientific computations.

The use of GPUs in high performance computing is on the rise. Once seen in PCs used largely for multimedia and gaming, GPU-based computing has become more popular among researchers for its ability to offer raw computing power. While CPU are critical to a PC for their ability to interact with the different computing elements such as memory and disk drives, GPUs can perform specialized tasks especially related to graphics and visual computations that working in tandem with CPUs can speed up computing.

The CPU-GPU combination also helps keep up power efficiency. The system consumes 4.04 megawatts, three times less than what it would have if it were built entirely with CPUs, claims Nvidia.

Overall, the Tianhe-1A is a computing monster. It has 262 terabytes of memory and is housed in 140 refrigerator-sized cabinets.

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Photo: Nvidia