FLEX-MPI: An MPI Extension for Supporting Dynamic Load Balancing on Heterogeneous Non-dedicated Systems

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Title:	FLEX-MPI: An MPI Extension for Supporting Dynamic Load Balancing on Heterogeneous Non-dedicated Systems
Author:	Martin, Gonzalo; Marinescu, Maria-Cristina; Singh, David E.; Carretero, Jesús
Other authors:	Barcelona Supercomputing Center
Abstract:	This paper introduces FLEX-MPI, a novel runtime approach for the dynamic load balancing of MPI-based SPMD applications running on heterogeneous platforms in the presence of dynamic external loads. To effectively balance the workload, FLEX-MPI monitors the actual performance of applications via hardware counters and the MPI profiling interface—with a negligible overhead and minimal code modifications. Our results show that by using this approach the execution time of an application may be significantly reduced.
Abstract:	This work has been partially supported by the Spanish Ministry of Science under the grant IPT-430000-2010-14.
Abstract:	Peer Reviewed
Subject(s):	-Àrees temàtiques de la UPC::Enginyeria electrònica -Distributed computing -Data analysis series -Dynamic load balancing -Distributed computing -Heterogeneous systems -Hardware counters -Sistemes operatius distribuïts (Ordinadors)
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Document type:	Article - Submitted version Book Part
Published by:	Springer International Publishing
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