SCHEDULE: NOV 16-22, 2013
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Task Mapping for Non-Contiguous Allocations
SESSION: Research Poster Reception
EVENT TYPE: Posters, Electronic Posters, and Education Posters
TIME: 5:15PM - 7:00PM
AUTHOR(S):David P. Bunde, Johnathan Ebbers, Stefan P. Feer, Vitus J. Leung, Nickolas W. Price, Zachary D. Rhodes, Matthew Swank
ROOM:Mile High Pre-Function
We examine task mapping algorithms for systems that allocate jobs non-contiguously, such as the Cray X series. Several studies have shown that task placement affects job running time for both contiguously and non-contiguously allocated jobs. Our focus is on jobs with a stencil communication pattern. We use experiments on a Cray XE to evaluate novel task mapping algorithms as well as some adapted to this setting. This is done with the miniGhost miniApp which mimics the performance of CTH, a shock physics application. Our strategies improve average running time by as much as 28% over a baseline strategy.
David P. Bunde - Knox College
Johnathan Ebbers - Knox College
Stefan P. Feer - 3M Health Information Systems
Vitus J. Leung - Sandia National Laboratories
Nickolas W. Price - Knox College
Zachary D. Rhodes - Allstate Corporation
Matthew Swank - Knox College