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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Variability in Large-Scale, High-Performance Systems

SESSION: Variability in Large-Scale, High-Performance Systems

EVENT TYPE: Birds of a Feather

EVENT TAG(S): Applications

TIME: 10:30AM - 12:00PM

SESSION LEADER(S):Kirk Cameron, Dimitris Nikolopoulos, Todd Gamblin



Increasingly, HPC systems exhibit variability. For example, multiple runs of a single application on an HPC system can result in runtimes that vary by an order of magnitude or more. Such variations may be caused by any combination of factors from the input data set or nondeterministic algorithms to the interconnect fabric, operating system, and hardware. System variability increases with scale and complexity, and it is known to limit both performance and energy efficiency in large-scale systems. The goal of this BoF is to bring together researchers across HPC communities to share and identify challenges in variability.

Session Leader Details:

Kirk Cameron (Primary Session Leader) - Virginia Polytechnic Institute and State University

Dimitris Nikolopoulos (Secondary Session Leader) - Queen's University Belfast

Todd Gamblin (Secondary Session Leader) - Lawrence Livermore National Laboratory

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