Tianhe-2

The Tianhe-2 ( Chinese 天河二号 ' Milky Way -2') is a Chinese supercomputer at the National Supercomputer Center in Guangzhou .

It was developed at the University of Science and Technology of National Defense in Changsha and, in its first expansion stage (June 2013), achieved a computing power of 33.86 petaflops and was almost twice as fast as the most powerful supercomputer to date, the American Titan ( 17.59 PFLOPS). The theoretical maximum power of the system is given as 55 petaflops.

In June 2016, Tianhe-2 was replaced by the Chinese in-house development Sunway TaihuLight with 93 PFLOPS, which is almost three times as fast .

configuration

Configuration of the first expansion stage 2013:

construction
- System: 125 racks with 4 frames each with 16 boards each
- Board:
  - Node 1: 4 Xeon E5 + 1 Xeon Phi
  - Node 2: 5 Xeon Phi
Processors (16,000 compute nodes with 3.12 million cores):
- 32000 × Intel Xeon E5-2692 (12-core processor, "Ivy Bridge", 2.2 GHz, 211 GFLOPS ) with 64 GB RAM each
- 48000 × Intel Xeon Phi 31S1P (57-core processor, 1.1 GHz) with 8 GB RAM each
RAM: 1375 TiB
- 1000 TiB for the 32000 Intel Xeon E5
- 0375 TiB for the 48000 Intel Xeon Phi
Additional processors
- 04,096 × Galaxy FT-1500 (16-core processor, 1.8 GHz, 144 GFLOPS, 65 watts)
Storage: 12400 TB
Operating system: Kylin Linux
Power consumption: 17.8 MW
Cooling: water cooling (6.4 MW)
Base area: 720 m²