High-performance numerical optimization on multicore clusters

Authors:
Panagiotis E. Hadjidoukas;Constantinos Voglis;Vassilios V. Dimakopoulos;Isaac E. Lagaris;Dimitris G. Papageorgiou
Affiliations:
Department of Computer Science, University of Ioannina, Ioannina, Greece;Department of Computer Science, University of Ioannina, Ioannina, Greece;Department of Computer Science, University of Ioannina, Ioannina, Greece;Department of Computer Science, University of Ioannina, Ioannina, Greece;Department of Materials Science and Engineering, University of Ioannina, Ioannina, Greece
Venue:
Euro-Par'11 Proceedings of the 17th international conference on Parallel processing - Volume Part II
Year:
2011

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Abstract

This paper presents a software infrastructure for high performance numerical optimization on clusters of multicore systems. At the core, a runtime system implements a programming and execution environment for irregular and adaptive task-based parallelism. Building on this, we extract and exploit the parallelism of a global optimization application at multiple levels, which include Hessian calculations and Newton-based local optimizations. We discuss parallel implementations details and task distribution schemes for managing nested parallelism. Finally, we report experimental performance results for all the components of our software system on a multicore cluster.