Thrifty interconnection network for HPC systems

Authors:
Jian Li;Lixin Zhang;Charles Lefurgy;Richard Treumann;Wolfgang E. Denzel
Affiliations:
IBM Austin Research Laboratory, Austin, TX, USA;IBM Austin Research Laboratory, Austin, TX, USA;IBM Austin Research Laboratory, Austin, TX, USA;IBM System and Technology Group, Poughkeepsie, NY, USA;IBM Zurich Reserach Laboratory, Zurich, Switzerland
Venue:
Proceedings of the 23rd international conference on Supercomputing
Year:
2009

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Abstract

We propose Thrifty Interconnection Network (TIN), where the network links are activated and de-activated dynamically to save power with little or no overhead by using inherent system events to overlap the link activation or de-activation time. Our simulation results on a set of real world HPC workload traces show on average 35% network power reduction.