Building Task-Oriented Applications: An Introduction to the Legion Programming Paradigm

Report No. ARL-TR-7206
Authors: Richard H Haney; Song J Park; Dale R Shires
Date/Pages: February 2015; 18 pages
Abstract: The Legion programming system from Stanford University was developed to address the specific needs of portable parallel heterogeneous programming with emphasis on program data. Data-centric Legion abstracts the underlying hardware such that the focus is algorithmic development rather than the idiosyncrasies of different computing architectures. Legion is part of a small but growing movement to treat parallel programming design and development in a task-oriented fashion and, as of this writing, is the only one to address this paradigm dynamically. This work employs a gravitational n-body simulation as a vehicle to introduce Legion to a wider audience of parallel programmers.
Distribution: Approved for public release
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Last Update / Reviewed: February 1, 2015