Active June 2016 Power 15 MW (Linpack) | Architecture Sunway | |
Operating system | ||
The Sunway TaihuLight (Chinese: 神威·太湖之光) is a Chinese supercomputer which, as of November 2016, is ranked number one in the TOP500 list as the fastest supercomputer in the world, with a LINPACK benchmark rating of 93 petaflops. This is nearly three times as fast as the previous holder of the record, the Tianhe-2, which ran at 34 petaflops. As of June 2016, it is also ranked as the fourth most energy-efficient supercomputer in Green500, with an efficiency of 6,051.30 MFLOPS/W. It was designed by the National Research Center of Parallel Computer Engineering & Technology (NRCPC) and is located at the National Supercomputing Center in Wuxi in the city of Wuxi, in Jiangsu province, China.
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Architecture
The Sunway TaihuLight uses a total of 40,960 Chinese-designed SW26010 manycore 64-bit RISC processors based on the Sunway architecture. Each processor chip contains 256 processing cores, and an additional four auxiliary cores for system management (also RISC cores, just more fully featured) for a total of 10,649,600 CPU cores across the entire system.
The processing cores feature 64 KB of scratchpad memory for data (and 16 KB for instructions) and communicate via a network on a chip, instead of having a traditional cache hierarchy.
Software
The system runs on its own operating system, Sunway RaiseOS 2.0.5, which is based on Linux. The system has its own customized implementation of OpenACC 2.0 to aid the parallelization of code.