SC13 Home > SC13 Schedule > SC13 Presentation - Task Mapping for Non-Contiguous Allocations

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

ABSTRACT:
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.

Chair/Author Details:

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

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