Sign up for our newsletter and get the latest HPC news and analysis.

Chinese Sunway Bluelight Super is DEC Alpha, One Decade Removed

Nebojsa Novakovic has posted some interesting details on the Chinese-built processor used in the Sunway Bluelight supercomputer, which ranked number 14 on the recent TOP500 list. The rumors seem to be correct; the CPU is based on the DEC Alpha processor.

SW3 aka SW1600 is a 16-core, 64-bit RISC processor, with each core looking a lot like an improved version of the 21164A EV56 Alpha core, plus vector FP unit extension added to each core. While the initial speed range was 1 to 1.2 GHz in the 65nm process, the standard speed grade is a 1.1 GHz chip with 141 GFLOPs DP FP performance. The speed set for the Bluelight Petaflop machine’s Top 500 run was 975 MHz, though. The quad-channel 128-bit DDR3 on-chip memory controller offers 68 GB/s bandwidth – yes, equivalent to 8 channels of DDR3-1066 server RAM.

Read the Full Story.

Resource Links: