Most powerful Supercomputer:
Tianhe-2:
For
the third consecutive time, Tianhe-2, a supercomputer developed by China’s
National University of Defense Technology, has retained its position as the
world’s No. 1 system with a performance of 33.86 Pflop/s (quadrillions of
calculations per second) on the Linpack benchmark.
It was developed by a team of 1,300 scientists and engineers.
FLOPS (for FLoating-point Operations Per Second)
According to NUDT, Tianhe-2 will be used for
simulation, analysis, and government security applications.
With 16,000 computer nodes, each comprising
two Intel Ivy Bridge Xeon processors and three Xeon Phi coprocessor chips, it
represents the world's largest installation of Ivy Bridge and Xeon Phi chips,
counting a total of 3,120,000 cores.Each of the 16,000 nodes possess 88
gigabytes of memory (64 used by the Ivy Bridge processors, and 8 gigabytes for
each of the Xeon Phi processors). The total CPU plus coprocessor memory is
1,375 TiB (approximately 1.34 PiB).
During the testing phase, Tianhe-2 was laid
out in a non-optimal confined space. When assembled at its final location, the
system will have a theoretical peak performance of 54.9 petaflops. At peak
power consumption, the system itself would draw 17.6 megawatts of power.
Including external cooling, the system would draw an aggregate of 24 megawatts.
The computer complex would occupy 720 square meters of space.
The front-end system consists of 4096 Galaxy
FT-1500 CPUs, a SPARC derivative designed and built by NUDT. Each FT-1500 has
16 cores and a 1.8 GHz clock frequency. The chip has a performance of 144
gigaflops and runs on 65 watts. The interconnect, called the TH Express-2,
designed by NUDT, utilizes a fat tree topology with 13 switches each of 576
ports.
Tianhe-2 runs on Kylin Linux, a version of
the operating system developed by NUDT. Resource management is based on Simple
Linux Utility for Resource Management (SLURM).


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