General purpose graphics-processing-unit implementation of cosmological domain wall network evolution

J. R. C. C. C. Correia and C. J. A. P. Martins
Phys. Rev. E 96, 043310 – Published 26 October 2017

Abstract

Topological defects unavoidably form at symmetry breaking phase transitions in the early universe. To probe the parameter space of theoretical models and set tighter experimental constraints (exploiting the recent advances in astrophysical observations), one requires more and more demanding simulations, and therefore more hardware resources and computation time. Improving the speed and efficiency of existing codes is essential. Here we present a general purpose graphics-processing-unit implementation of the canonical Press-Ryden-Spergel algorithm for the evolution of cosmological domain wall networks. This is ported to the Open Computing Language standard, and as a consequence significant speedups are achieved both in two-dimensional (2D) and 3D simulations.

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  • Received 8 May 2017

DOI:https://doi.org/10.1103/PhysRevE.96.043310

©2017 American Physical Society

Physics Subject Headings (PhySH)

Gravitation, Cosmology & Astrophysics

Authors & Affiliations

J. R. C. C. C. Correia1,2,* and C. J. A. P. Martins1,3,†

  • 1Instituto de Astrofísica e Ciências do Espaço, Universidade do Porto, CAUP, Rua das Estrelas, 4150-762 Porto, Portugal
  • 2Departamento de Física, Universidade de Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
  • 3Centro de Astrofísica da Universidade do Porto, Rua das Estrelas, 4150-762 Porto, Portugal

  • *Jose.Correia@astro.up.pt
  • Carlos.Martins@astro.up.pt

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Issue

Vol. 96, Iss. 4 — October 2017

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