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Denver, CO
April 4, 2005 to April 8, 2005
ISBN: 0-7695-2312-9
pp: 272a
Jelena Pjesivac-Grbovic , University of Tennessee Computer Science Department, Knoxville
Thara Angskun , University of Tennessee Computer Science Department, Knoxville
George Bosilca , University of Tennessee Computer Science Department, Knoxville
Graham E. Fagg , University of Tennessee Computer Science Department, Knoxville
Edgar Gabriel , University of Tennessee Computer Science Department, Knoxville
Jack J. Dongarra , University of Tennessee Computer Science Department, Knoxville
ABSTRACT
Previous studies of application usage show that the performance of collective communications are critical for high-performance computing and are often overlooked when compared to the point-to-point performance. In this paper, we analyze and attempt to improve intra-cluster collective communication in the context of the widely deployed MPI programming paradigm by extending accepted models of point-to-point communication, such as Hockney, LogP/LogGP, and PLogP. The predictions from the models were compared to the experimentally gathered data and our findings were used to optimize the implementation of collective operations in the FT-MPI library.
INDEX TERMS
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CITATION
Jelena Pjesivac-Grbovic, Thara Angskun, George Bosilca, Graham E. Fagg, Edgar Gabriel, Jack J. Dongarra, "Performance Analysis of MPI Collective Operations", IPDPS, 2005, Proceedings. 19th IEEE International Parallel and Distributed Processing Symposium, Proceedings. 19th IEEE International Parallel and Distributed Processing Symposium 2005, pp. 272a, doi:10.1109/IPDPS.2005.335
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