Published: 2016-11-03

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

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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