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Parallel Implementations of Self-gravity Calculation for Small Astronomical Bodies on Xeon Phi

  • Sebastián Caballero
  • Andrés Baranzano
  • Sergio NesmachnowEmail author
Conference paper
Part of the Communications in Computer and Information Science book series (CCIS, volume 979)

Abstract

This article presents parallel implementations of the Mass Approximation Distance Algorithm for self-gravity calculation on Xeon Phi. The proposed method is relevant for performing simulations on realistic systems modeling small astronomical bodies, which are agglomerates of thousand/million of particles. Specific strategies and optimizations are described for execution on the Xeon Phi architecture. The experimental analysis evaluates the computational efficiency of the proposed implementations on realistic scenarios, reporting the best options for the implementation. Specific performance improvements of up to 146.4\(\times \) are reported for scenarios with more than one million particles.

Keywords

Multithreading Self-gravity Xeon Phi 

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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  • Sebastián Caballero
    • 1
  • Andrés Baranzano
    • 1
  • Sergio Nesmachnow
    • 1
    Email author
  1. 1.Facultad de IngenieríaUniversidad de la RepúblicaMontevideoUruguay

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