Application-oriented adaptive MPI_Bcast for grids

Gupta, Rakhi and Vadhiyar, Sathish (2006) Application-oriented adaptive MPI_Bcast for grids. In: In proceedings of 20th IEEE International Parallel & Distributed Processing Symposium (IPDPS), 25-29 April 2006, Rhodes, Island, Greece.

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Abstract

Due to the importance of collective communications in scientific parallel applications, many strategies have been devised for optimizing collective communications for different kinds of parallel environments. There has been an increasing interest to evolve efficient broadcast algorithms for computational grids. In this paper, we present application-oriented adaptive techniques that take into account resource characteristics as well as the application's usage of broadcasts for deriving efficient broadcast trees. In particular, we consider two broadcast parameters used in the application, namely, the broadcast message sizes and the time interval between the broadcasts. The results indicate that our adaptive strategies can provide 20% average improvement in performance over the popular MPICH-G2's MPI_Bcast implementation for loaded network conditions.

Item Type:	Conference Paper
Publisher:	IEEE
Additional Information:	Copyright 2006 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Department/Centre:	Division of Interdisciplinary Sciences > Supercomputer Education & Research Centre
Date Deposited:	23 Nov 2011 06:03
Last Modified:	23 Nov 2011 06:03
URI:	http://eprints.iisc.ac.in/id/eprint/42389

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