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The performance of parallel applications depends on two primary components of the environment; processing power and network interconnection. In this work, the impact of a high performance interconnect in parallel programs on a homogeneous cluster of servers interconnected by Gigabit Ethernet 1 Gbps and InfiniBand FDR 56 Gbps was evaluated. Therefore, a characterization of NAS Parallel Benchmarks concerning computation, communication, and execution cost using Microsoft Azure instance pricing model was performed. The results showed that in highly network-dependent applications, performance could be significantly improved by using InfiniBand at a better execution cost, even with the higher instance price.

O Impacto da Interconexão de Rede no Desempenho de Programas Paralelos