In October 2010, an upgraded version of the machine (Tianhe-1A) overtook ORNL's Jaguar to become the world's fastest supercomputer, with a peak computing rate of 2.57 petaFLOPS.[5][6] In June 2011 the Tianhe-1A was overtaken by the K computer as the world's fastest supercomputer, which was also subsequently superseded.[7]
On 12 August 2015, Tianhe-1 felt the impact of the powerful Tianjin explosions and went offline for some time. Xinhua reports that "the office building of Chinese supercomputer Tianhe-1, one of the world's fastest supercomputers, suffered damage". Sources at Tianhe-1 told Xinhua that the computer was not damaged, but that they had shut down some of its operations as a precaution.[10] Operation resumed on 17 August 2015.[11]
In October 2010, Tianhe-1A, an upgraded supercomputer, was unveiled at HPC 2010 China.[16] It is now equipped with 14,336 XeonX5670 processors and 7,168 Nvidia Tesla M2050 general purpose GPUs. 2,048 FeiTeng 1000 SPARC-based processors are also installed in the system, but their computing power was not counted into the machine's official LINPACK statistics as of October 2010.[17] Tianhe-1A has a theoretical peak performance of 4.701 petaflops.[18] NVIDIA suggests that it would have taken "50,000 CPUs and twice as much floor space to deliver the same performance using CPUs alone." The current heterogeneous system consumes 4.04 megawatts compared to over 12 megawatts had it been built only with CPUs.[19][better source needed]
The Tianhe-1A system is composed of 112 computer cabinets, 12 storage cabinets, 6 communications cabinets, and 8 I/O cabinets. Each computer cabinet is composed of four frames, with each frame containing eight blades, plus a 16-port switching board. Each blade is composed of two computer nodes, with each computer node containing two Xeon X5670 6-core processors and one Nvidia M2050 GPU processor.[20] The system has 3584 total blades containing 7168 GPUs, and 14,336 CPUs, managed by the SLURM job scheduler.[21] The total disk storage of the systems is 2 Petabytes implemented as a Lustre clustered file system,[2] and the total memory size of the system is 262 terabytes.[17]
Another significant reason for the increased performance of the upgraded Tianhe-1A system is the Chinese-designed NUDT custom designed proprietary high-speed interconnect called Arch that runs at 160 Gbit/s, twice the bandwidth of InfiniBand.[17]
The supercomputer is installed at the National Supercomputing Center, Tianjin, and is used to carry out computations for petroleum exploration and aircraft design.[13] It is an "open access" computer, meaning it provides services for other countries.[24] The supercomputer will be available to international clients.[25]
The computer cost $88 million to build. Approximately $20 million is spent annually for electricity and operating expenses. Approximately 200 workers are employed in its operation.
Tianhe-IA was ranked as the world's fastest supercomputer in the TOP500 list[26][27] until July 2011 when the K computer overtook it.
In June 2011, scientists at the Institute of Process Engineering (IPE) at the Chinese Academy of Sciences (CAS) announced a record-breaking scientific simulation on the Tianhe-1A supercomputer that furthers their research in solar energy. CAS-IPE scientists ran a complex molecular dynamics simulation on all 7,168 NVIDIA Tesla GPUs to achieve a performance of 1.87 petaflops (about the same performance as 130,000 laptops).[28]
^ abU.S. says China building 'entirely indigenous' supercomputer, by Patrick Thibodeau Computerworld, 4 November 2010 [1]
^Yang Xue-Jun; Liao Xiang-Ke; et al. (2011). "The TianHe-1A Supercomputer: Its Hardware and Software". Journal of Computer Science and Technology. 26 (3): 344–351. doi:10.1007/s02011-011-1137-8. S2CID1389468.
