The paper analyzes the PerfBound power-saving mechanism for Ethernet-based interconnects, identifies weaknesses in dynamic power-down methods, and proposes an enhancement that improves energy reduction with minimal performance penalty.
Fat-trees routing and node ordering providing contention free traffic for MPI global collectives.Journal of Parallel and Distributed Computing, 72, 05 2011
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On the Power Saving in High-Speed Ethernet-based Networks for Supercomputers and Data Centers
The paper analyzes the PerfBound power-saving mechanism for Ethernet-based interconnects, identifies weaknesses in dynamic power-down methods, and proposes an enhancement that improves energy reduction with minimal performance penalty.