Caminhamento Paralelo Barnes-Hut com Vetorização AVX2

  • Wagner Zola Universidade Federal do Paraná
  • Armando Delgado Universidade Federal do Paraná
  • Rodrigo Morante Blanco Universidade Federal do Paraná

Resumo


O algoritmo Barnes-Hut é um método aproximado amplamente usado na simulação gravitacional de N -Corpos. A natureza irregular desse código apresenta desafios para sua computação em sistemas paralelos. Obstáculos adicionais ocorrem nesse padrão de computação quando se deseja a utilização eficaz da capacidade computacional de arquiteturas multicore com instruçoes SIMD. O enfoque deste trabalho é implementar e analisar a eficiência do caminhamento paralelo Barnes-Hut com octrees implı́citas e uso de instruções vetoriais AVX2. Os experimentos demonstram a efetividade do método, que apresenta altas taxas de GFLOP/s e economia de energia nas simulações.

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Publicado
08/11/2019
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ZOLA, Wagner; DELGADO, Armando; BLANCO, Rodrigo Morante. Caminhamento Paralelo Barnes-Hut com Vetorização AVX2. In: SIMPÓSIO EM SISTEMAS COMPUTACIONAIS DE ALTO DESEMPENHO (WSCAD), 20. , 2019, Campo Grande. Anais [...]. Porto Alegre: Sociedade Brasileira de Computação, 2019 . p. 454-461. DOI: https://doi.org/10.5753/wscad.2019.8691.