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Interconnection network performance is a key issue in HPC systems and datacenters, especially as their number of end nodes grows, to cope with application needs. The network topology and the routing algorithm are important factors for performance and cost. Topologies such as fat‐tree or Dragonfly were proposed to maximize network performance while reducing network resources. One of the most promising...
Interconnection networks must meet the communication demands of current High-Performance Computing systems. In order to interconnect efficiently the end nodes of these systems with a good performance-to-cost ratio, new network topologies have been proposed in the last years that leverage high-radix switches, such as Slim Fly. Adversarial traffic patterns, however, may reduce severely the performance...
Interconnection network performance becomes a key issue in HPC systems as their size grows. In order to maximize network performance with the minimum quantity of network resources, Slim Fly topology was proposed. It offers a high network bandwidth and assures a network diameter of two. However, in congestion situations where the head-of-line blocking effect arises, the Slim Fly performance may drop...
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