Exploiting Non-blocking Remote Memory Access Communication in Scientific Benchmarks

Vinod Tipparaju,Manojkumar Krishnan,Jarek Nieplocha,Dhabaleswar Panda,Gopalakrishnan Santhanaraman

doi:10.1007/978-3-540-24596-4_27

Exploiting Non-blocking Remote Memory Access Communication in Scientific Benchmarks

Vinod Tipparaju, Manojkumar Krishnan + Show 3 more

https://doi.org/10.1007/978-3-540-24596-4_27

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Publication Date: Jan 1, 2003

Citations: 30

Affiliation: Pacific Northwest National Laboratory, The Ohio State University

#Remote Memory Access #Remote Memory Access Communication + Show 8 more

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Abstract

This paper describes a comparative performance study of MPI and Remote Memory Access (RMA) communication models in context of four scientific benchmarks: NAS MG, NAS CG, SUMMA matrix multiplication, and Lennard Jones molecular dynamics on clusters with the Myrinet network. It is shown that RMA communication delivers a consistent performance advantage over MPI. In some cases an improvement as much as 50% was achieved. Benefits of using non-blocking RMA for overlapping computation and communication are discussed.

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