Mitigando o Impacto da Degradação do Processador via Multiprogramação

  • Mariana Costa UNIPAMPA
  • Sandro M. V. N. Marques UNIPAMPA
  • Fábio D. Rossi IFFar
  • Marcelo C. Luizelli UNIPAMPA
  • Antonio Carlos S. Beck UFRGS
  • Arthur F. Lorenzon UNIPAMPA


O número de núcleos em um único chip tem aumentado a cada nova geração de processadores para satisfazer a demanda de desempenho de aplicações modernas. Entretanto, a potência consumida por área também tem aumentado, influenciando a temperatura de operação e acelerando os fenômenos responsáveis pela degradação dos processadores. Neste sentido, controlar a temperatura dos sistemas computacionais é essencial para aumentar a vida útil dos recursos computacionais. Sendo assim, nós propomos PampaAging: uma abordagem dinâmica, automática e transparente que realiza o ajuste do número de threads e a alocação do recursos de hardware para execução concorrente de um conjunto de aplicações com objetivo de maximizar a vida útil dos componentes de hardware enquanto também otimiza o desempenho das aplicações paralelas. Com a execução de vinte e quatro aplicações em duas arquiteturas multicore (Intel e AMD), mostramos que PampaAging consegue melhorar em até 42% a vida útil do processador e o desempenho em 2.52 vezes em comparação à maneira padrão que aplicações paralelas são executadas.


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COSTA, Mariana; MARQUES, Sandro M. V. N.; ROSSI, Fábio D.; LUIZELLI, Marcelo C.; BECK, Antonio Carlos S.; LORENZON, Arthur F.. Mitigando o Impacto da Degradação do Processador via Multiprogramação. In: SIMPÓSIO EM SISTEMAS COMPUTACIONAIS DE ALTO DESEMPENHO (WSCAD), 22. , 2021, Belo Horizonte. Anais [...]. Porto Alegre: Sociedade Brasileira de Computação, 2021 . p. 96-107. DOI: