This annual workshop is organized by the Energy Efficient HPC Working Group. It provides a strong blended focus that includes both the facilities and system perspectives; from architecture through design and implementation. The topics reflect the activities and interests of the EE HPC WG. Workshop: 9:00AM - 5:30PM Keynote: 1:30PM ROOM:Hilton Salon A Satoshi Matsuoka from the Tokyo Institute of Technology will open the workshop and will also moderate the first workshop session with three speakers from Japanese Supercomputing Centers. Justin Rattner will deliver the keynote address. He is the former Intel Senior Fellow, Chief Technology Officer (CTO) and Vice President of Intel Corporation. Justin’s vision and leadership in the late 80s and early 90s led to the first teraflop supercomputer and helped shape the technology direction and innovation that drove an exciting era of parallel supercomputing. We’re very fortunate to have Justin as the keynote. He has been the keynote speaker for Supercomputing as well as the International Supercomputing Conference in recent years. He is uniquely qualified to talk about perspectives on HPC system architecture and energy efficiency. The workshop will also host a session with a panel of representatives from the Oil and Gas Industry. Donny Cooper from Total is helping to organize this session and it will include representatives from BP, Hess and possibly Exxon Mobile and CGG. The purpose of this session is to explore what we can learn from the oil and gas industry supercomputer centers to help the scientific and research governmental supercomputing centers with improving energy efficiency. We’d also like to explore if there are opportunities to work together in the future.