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DOE OSTI · 1070157

I/O Forwarding on Livermore Computing Commodity Linux Clusters

Garlick, Jim E.
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Abstract

This report takes the first step in an investigation of I/O forwarding for commodity Linux clusters to improve job launch scalability, reduce operating system jitter, and simplify system management. We discuss the motivation and challenges presented by I/O forwarding through the lens of our experiences with the IBM Blue Gene systems. We identify three I/O modes that each present unique I/O forwarding requirements, and may fare differently in a cost/benefit calculation when considering whether to forward or not. Finally, we present a set of requirements, broken down by I/O mode, which can be used as the basis for an evaluation of possible options.

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Garlick, Jim E.. 2012-12-26. I/O Forwarding on Livermore Computing Commodity Linux Clusters. https://doi.org/10.2172/1070157

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