L-CSC Emerges as the Most Energy-Efficient Supercomputer in the World
New Orleans, LA, USA; November 20, 2014 -- A new supercomputer, L-CSC from the GSI Helmholtz Center, emerged as the most energy-efficient (or greenest) supercomputer in the world, according to the 16th edition of the twice-yearly Green500 list of the world’s most energy-efficient supercomputers. The L-CSC cluster was the first and only supercomputer on the list to surpass 5 gigaflops/watt (billions of operations per second per watt). It was powered by Intel Ivy Bridge CPUs and a FDR Infiniband network and accelerated by AMD FirePro™ S9150 GPUs.
In fact, the top three slots of the Green500 were powered by three different accelerators with number one, L-CSC, being powered by AMD FirePro™ S9150 GPUs; number two, Suiren, powered by PEZY-SC many-core accelerators; and number three, TSUBAME-KFC, powered by NVIDIA K20x GPUs. Beyond these top three, the next 20 supercomputers were also accelerator-based.
L-CSC achieved the first position on the November 2014 Green500 List with an impressive 5.27 gigaflops per watt. This system used Intel Ivy Bridge CPUs, AMD FirePro GPUs, and energy-efficient software design to achieve this feat. Suiren, a supercomputer from the High Energy Accelerator Research Organization/KEK in Japan, occupied the second spot at 4.95 gigaflops per watt. Like L-CSC, it used Intel Ivy Bridge CPUs, but coupled them with many-core accelerators from PEZY-SC. Finally, TSUBAME-KFC, which was the most energy-efficient supercomputer over the previous two editions of the Green500, came in third in this edition of the Green500. TSUBAME-KFC was the first supercomputer to have broken the 4 gigaflops/watt barrier. Like the other two accelerator-based machines, it used Intel Ivy Bridge CPUs, but coupled with NVIDIA K20x GPUs.
Other highlights from this Green500 List include the following: