TY - CPAPER AU - Henry C Coles AU - Michael Ellsworth AU - David J Martinez AU - Anna-Marie Bailey AU - Farhad Banisadr AU - Natalie Bates AU - Susan Coghlan AU - David E Cowley AU - Nicolas Dube AU - Parks Fields AU - Steve E Greenberg AU - Madhusudan Iyengar AU - Peter R Kulesza AU - Josip Loncaric AU - Tim McCann AU - Greg Pautsch AU - Michael K Patterson AU - Richard G Rivera AU - Greg K Rottman AU - Dale A Sartor AU - William F Tschudi AU - Wade Vinson AB -

Liquid cooling is key to reducing energy consumption for this generation of supercomputers and remains on the roadmap for the foreseeable future. This is because the heat capacity of liquids is orders of magnitude larger than that of air and once heat has been transferred to a liquid, it can be removed from the datacenter efficiently. The transition from air to liquid cooling is an inflection point providing an opportunity to work collectively to set guidelines for facilitating the energy efficiency of liquid-cooled High Performance Computing (HPC) facilities and systems. The vision is to use non-compressor-based cooling, to facilitate heat re-use, and thereby build solutions that are more energy-efficient, less carbon intensive and more cost effective than their air-cooled predecessors. The Energy Efficient HPC Working Group is developing guidelines for warmer liquid-cooling temperatures in order to standardize facility and HPC equipment, and provide more opportunity for reuse of waste heat. This report describes the development of those guidelines.

BT - SC11 C1 -

Applications Team

C2 - LBNL-5128E CN - LBNL-5128E CY - Seattle, WA DA - 11/2011 LA - eng N2 -

Liquid cooling is key to reducing energy consumption for this generation of supercomputers and remains on the roadmap for the foreseeable future. This is because the heat capacity of liquids is orders of magnitude larger than that of air and once heat has been transferred to a liquid, it can be removed from the datacenter efficiently. The transition from air to liquid cooling is an inflection point providing an opportunity to work collectively to set guidelines for facilitating the energy efficiency of liquid-cooled High Performance Computing (HPC) facilities and systems. The vision is to use non-compressor-based cooling, to facilitate heat re-use, and thereby build solutions that are more energy-efficient, less carbon intensive and more cost effective than their air-cooled predecessors. The Energy Efficient HPC Working Group is developing guidelines for warmer liquid-cooling temperatures in order to standardize facility and HPC equipment, and provide more opportunity for reuse of waste heat. This report describes the development of those guidelines.

PP - Seattle, WA PY - 2011 T2 - SC11 T3 - SC11 TI - "Hot" for Warm Water Cooling ER -