|Max. CPU clock rate||0.8 GHz to 1.0 GHz|
FeiTeng-1000 is the third generation CPU from the YinHeFeiTeng (银河飞騰, YHFT) family. This CPU family has been developed by a team directed by NUDT's Professor Xing Zuocheng. The first generation was binary compatible with the Intel Itanium 2. The second generation, the FT64, was a system on a chip with CPU and 64-bit stream processor; FT64 chips were used in YinHe (银河) supercomputers as accelerators.
The Tianhe-1A supercomputer uses 2,048 FeiTeng 1000 processors. Tianhe-1A has a theoretical peak performance of 4.701 petaflops, also employing 7,168 Nvidia Tesla M2050 GPUs and 14,336 Intel Xeon X5670 CPUs in addition to FT1000 processors. The FeiTeng-1000 is an eight-core processor based on the SPARC system and is used to operate service nodes on the Tianhe-1.
Tianhe-2 supercomputer uses 4096 processors Galaxy FT-1500 with 16 cores, OpenSPARC architecture based and 65 W TDP. They are made with 40 nm technology, processor cores work at 1.8 GHz Peak performance of FT-1500 is 115–144 GFLOPS; every core may execute up to 8 interleaving threads and supports 256-bit wide SIMD vector operations including Fused Mul-Add (FMA). Cache of this SoC works at 2 GHz frequency, there are 16 KB L1i, 16 KB L1d, 512 KB L2 per core, and shared 4 MB L3 cache. L3 cache has 4 segments (1 segment per block of 4 CPU cores), each of 1 MB with 32-way associative. Cache uses directory-based cache coherency protocol. FT-1500 also has:
- Links to connect several processors into NUMA machine
- 4 integrated DDR3 memory controllers
- 2 PCI-express controllers
- 10 Gbit Ethernet ports
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