Impacto do Prefetcher na Precisão de Simulações de Arquiteturas Paralelas

  • Valéria Girelli Universidade Federal do Rio Grande do Sul
  • Francis Moreira Universidade Federal do Rio Grande do Sul
  • Matheus Serpa Universidade Federal do Rio Grande do Sul
  • Philippe Olivier Navaux Universidade Federal do Rio Grande do Sul

Resumo


Em arquitetura de computadores, o uso de simuladores é predominante em todos os grupos de pesquisa, com uma ampla variedade de abordagens e implementações.No entanto, falta na literatura uma análise detalhada de simuladores de arquiteturas paralelas que suportem workloads de Computação de Alto Desempenho (High Performance Computing - HPC). Este trabalho busca analisar o impacto do prefetcher na precisão da simulação paralela realizada pelo ZSim, um simulador de arquiteturas paralelas. Observamos que, devido à falta de modelagem de prefetcher, as estatı́sticas da hierarquia de memória apresentam comportamentos imprecisos, com erros de até 2.600%.

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Publicado
08/11/2019
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GIRELLI, Valéria; MOREIRA, Francis; SERPA, Matheus; NAVAUX, Philippe Olivier. Impacto do Prefetcher na Precisão de Simulações de Arquiteturas Paralelas. In: SIMPÓSIO EM SISTEMAS COMPUTACIONAIS DE ALTO DESEMPENHO (WSCAD), 20. , 2019, Campo Grande. Anais [...]. Porto Alegre: Sociedade Brasileira de Computação, 2019 . p. 382-393. DOI: https://doi.org/10.5753/wscad.2019.8684.