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    Por favor, use este identificador para citar o enlazar este ítem:https://uvadoc.uva.es/handle/10324/74178

    Título
    QoS provision in hierarchical and non-hierarchical switch architectures
    Autor
    Cano Cano, Javier
    Andújar Muñoz, Francisco JoséAutoridad UVA Orcid
    Alfaro Cortés, Francisco J.
    Sánchez, José L.
    Año del Documento
    2021
    Descripción
    Producción Científica
    Documento Fuente
    Journal of Parallel and Distributed Computing, Volume 148, 2021, Pages 138-150
    Abstract
    Quality of service (QoS) provision has become an important aspect of high-performance computing interconnection networks. Proof of that is the inclusion of mechanisms targeted to the provision of QoS by the main interconnection technologies such as Gigabit Ethernet, Infiniband (IB) and Omni-Path (OPA). A key component of QoS provision is the output scheduling algorithm, which determines when a packet should be transmitted. An ideal scheduling algorithm should satisfy two main properties: good end-to-end latency and implementation simplicity. Table-based schedulers are able to provide these two properties, and because of this, IB and OPA have implemented this approach. In this paper, we present a comparative study in terms of QoS provision between these two dominating interconnection technologies. Those interconnection technologies are also two examples of non-hierarchical and hierarchical switch architectures, respectively, which gives the results of this study greater significance. In order to carry out the study, the Deficit Table scheduler (DTable) has been used. DTable is a table-based scheduling algorithm which offers a good balance between end-to-end latency and implementation cost.
    ISSN
    0743-7315
    Revisión por pares
    SI
    DOI
    10.1016/j.jpdc.2020.10.009
    Version del Editor
    https://www.sciencedirect.com/science/article/pii/S0743731520303981
    Idioma
    spa
    URI
    https://uvadoc.uva.es/handle/10324/74178
    Tipo de versión
    info:eu-repo/semantics/draft
    Derechos
    restrictedAccess
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    • DEP41 - Artículos de revista [109]
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    Universidad de Valladolid

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