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A Predictable Communication Scheme for Embedded Multiprocessor Systems

机译:一种用于嵌入式多处理器系统的可预测通信方案

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Networks-on-Chip (NoC) are emerging as a widely accepted alternative for the traditional bus architectures. However, their applicability by the system designers is far away from being intuitive due to their lack of predictability. This communication predictability can be obtained statically or dynamically. A dynamic allocation is more suitable for flexible multiprocessor systems and requires the implementation of a Quality-of-Service (QoS) mechanism. This paper explores the main QoS schemes suitable for such systems: connection-oriented and connectionless. The simulation results show that the connectionless scheme provides a better predictability in terms of message latency with an acceptable buffer requirement. This work provides the designer with valuable guidelines to choose a priori the QoS parameters such that they can be confident on the predicted results.
机译:片上网络(NOC)是传统总线架构的广泛接受的替代品。然而,由于它们缺乏可预测性,系统设计人员的适用性远远远非直观。该通信可预测性可以静态或动态地获得。动态分配更适合灵活的多处理器系统,并且需要实现服务质量(QoS)机制。本文探讨了适用于此类系统的主要QoS方案:面向连接和无连接。仿真结果表明,无连接方案在具有可接受的缓冲区要求的消息延迟方面提供了更好的可预测性。这项工作为设计人员提供了有价值的指导方针,可以选择先验的QoS参数,以便它们对预测结果充满信心。

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