Hybrid CPU + Xeon Phi implementation of the Particle-in-Cell method for plasma simulation

Iosif B. Meyerov; Sergey I. Bastrakov; Igor A. Surmin; Alexey V. Bashinov; Evgeny S. Efimenko; Artem V. Korzhimanov; Alexander A. Muraviev; Arkady A. Gonoskov

doi:10.14529/jsfi160301

Authors

Iosif B. Meyerov Lobachevsky State University of Nizhni Novgorod, Nizhni Novgorod
Sergey I. Bastrakov Lobachevsky State University of Nizhni Novgorod, Nizhni Novgorod
Igor A. Surmin Lobachevsky State University of Nizhni Novgorod, Nizhni Novgorod
Alexey V. Bashinov Institute of Applied Physics, Russan Academy of Sciences, Nizhni Novgorod
Evgeny S. Efimenko Lobachevsky State University of Nizhni Novgorod, Nizhni Novgorod Institute of Applied Physics, Russan Academy of Sciences, Nizhni Novgorod
Artem V. Korzhimanov Lobachevsky State University of Nizhni Novgorod, Nizhni Novgorod Institute of Applied Physics, Russan Academy of Sciences, Nizhni Novgorod
Alexander A. Muraviev Lobachevsky State University of Nizhni Novgorod, Nizhni Novgorod Institute of Applied Physics, Russan Academy of Sciences, Nizhni Novgorod
Arkady A. Gonoskov Lobachevsky State University of Nizhni Novgorod, Nizhni Novgorod Institute of Applied Physics, Russan Academy of Sciences, Nizhni Novgorod Chalmers University of Technology, Göteborg

DOI:

https://doi.org/10.14529/jsfi160301

Abstract

This paper presents experimental results of Particle-in-Cell plasma simulation on a hybrid system with CPUs and Intel Xeon Phi coprocessors. We consider simulation of two relevant laser-driven particle acceleration regimes using the Particle-in-Cell code PICADOR. On a node of a cluster with 2 CPUs and 2 Xeon Phi coprocessors the hybrid CPU + Xeon Phi configuration allows to fully utilize the computational resources of the node. It outperforms both CPU-only and Xeon Phi-only configurations with the speedups between 1.36 x and 1.68 x.

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