Switch scheduling in the multimedia router (MMR)

D. S. Love, S. Yalamanchili, J. Duato, María Blanca Caminero, F. Quiles
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引用次数: 14

Abstract

The primary goal of the Multimedia Router (MMR) project is the design and implementation of a router optimized for multimedia applications. The router is targeted for use in cluster and LAN interconnection networks which offer different constraints and therefore differing router solutions than WANs. This paper describes and evaluates a switch scheduling algorithm based on a priority biasing scheme for dynamically updating the priorities of the connections established through the router. Unlike existing schemes that simply use the age of a flit as its priority, the novel feature of the proposed approach is that the priority is biased using the measured quality of service (QoS) values for the connection. Furthermore, the structure of the switch scheduling algorithm is motivated by opportunities for pipelined and concurrent operation so that scheduling decisions could be made at switching speeds. The performance of two of the many possible biasing functions is evaluated.
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多媒体路由器(MMR)中的交换机调度
多媒体路由器(MMR)项目的主要目标是设计和实现针对多媒体应用进行优化的路由器。路由器的目标是在集群和局域网互连网络中使用,这些网络提供不同的限制,因此与广域网不同的路由器解决方案。本文描述并评估了一种基于优先级偏置方案的交换机调度算法,该算法用于动态更新通过路由器建立的连接的优先级。不像现有的方案,简单地使用飞行的年龄作为其优先级,所提出的方法的新特点是,优先级是使用测量的服务质量(QoS)值为连接的偏差。此外,交换调度算法的结构是由流水线和并发操作的机会驱动的,因此可以在交换速度下做出调度决策。评估了许多可能的偏置函数中的两个函数的性能。
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