January 2010

ORNL Report

Linux OS Jitter Measurements at Large Node Counts using a BlueGene/L

By:
Jones, Terry R; Tauferner, Andrew; Inglett, Todd
Publication Date:
January 2010

Abstract

We present experimental results for a coordinated scheduling implementation of the Linux operating system. Results were collected on an IBM Blue Gene/L machine at scales up to 16K nodes. Our results indicate coordinated scheduling was able to provide a dramatic improvement in scaling performance for two applications characterized as bulk synchronous parallel programs.


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