sponsored byACMIEEE The International Conference for High Performance 
Computing, Networking, Storage and Analysis
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SCHEDULE: NOV 15-20, 2015

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Dynamic Liquid Cooling, Telemetry and Controls: Opportunity for Improved TCO?

SESSION: Dynamic Liquid Cooling, Telemetry and Controls: Opportunity for Improved TCO?

EVENT TYPE: Birds of a Feather

EVENT TAG(S): Facilities

TIME: 5:30PM - 7:00PM

SESSION LEADER(S):David R. Grant, Steven Martin, Detlef Labrenz



Today’s practice for liquid cooling is to use CDUs with constant flow-rate and temperature. Tomorrow’s products could be designed for variable flow-rate and temperature based on actual heat removal requirements, but there would have to be more and finer grained telemetry and controls. How much savings can be gained in energy savings compared to the incremental capital and operational costs? Application load differences can cause rack power variation, but nodes within a rack can also vary. Where is the sweet spot for implementation- at the rack, node or even component level? This BoF will address these and other related questions.

Session Leader Details:

David R. Grant (Primary Session Leader) - Oak Ridge National Laboratory

Steven Martin (Secondary Session Leader) - Cray Inc.

Detlef Labrenz (Secondary Session Leader) - Leibniz Supercomputing Center

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