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首页> 外文期刊>International Journal of Innovative Computing Information and Control >DESIGN CONCEPT AND MICROARCHITECTURE OF NETWORK-ON-CHIP WITH BEST-EFFORT AND GUARANTEED-THROUGHPUT SERVICES
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DESIGN CONCEPT AND MICROARCHITECTURE OF NETWORK-ON-CHIP WITH BEST-EFFORT AND GUARANTEED-THROUGHPUT SERVICES

机译：尽力而为和保证通行的服务的片上网络的设计概念和微体系结构

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摘要

A network-on-chip (NoC) design concept that combines a best-effort (BE) and a guaranteed-throughput (GT) service in a single network platform is presented in this paper. The concept is enabled by a flexible flit-level packet interleaving method. Both BE and GT packets can share communication link in a flexible way, in which flits belonging to the same packet are assigned to the same local identity-tag (ID-tag). The ID-tags attached to every flit of packets will be changed/updated locally at runtime over communication links. The updating process is organized by an ID-tag mapping management unit implemented at every output port of the NoC routers. Compared to other existing multiplexing methods, our local ID-slot-based method provides high flexibility to establish connections with more optimal resources utilization. There is no need for a specific algorithm for finding a conflict-free scheduling as commonly used in the time-division multiple access-based methods that use time slots allocation technique. Communication channels can be shared effectively by both packets, where routing conflicts are simply managed using the proposed local ID-management method. Simulation results show that the BT and GT packets can be interleaved safely in the NoC and meet the expected bandwidth for each GT streams. From a selected test traffic scenario, all flits of both BE and GT streams can be routed and accepted correctly at each destination node without data loses.
机译：本文提出了一种在单个网络平台上结合尽力而为（BE）和保证吞吐量（GT）服务的片上网络（NoC）设计概念。该概念通过灵活的flit级分组交织方法实现。 BE和GT数据包都可以以灵活的方式共享通信链路，其中，将属于同一数据包的碎片分配给相同的本地身份标签（ID-tag）。附加到每个数据包的ID标签将在运行时通过通信链接在本地更改/更新。更新过程由在NoC路由器的每个输出端口实现的ID标签映射管理单元组织。与其他现有的多路复用方法相比，我们基于本地ID插槽的方法具有更高的灵活性，可以建立连接并具有最佳的资源利用率。不需要像使用时隙分配技术的基于时分多路访问的方法中常用的特定算法来查找无冲突调度。两个数据包可以有效地共享通信通道，其中使用建议的本地ID管理方法可以简单地管理路由冲突。仿真结果表明，BT和GT数据包可以在NoC中安全地交织，并满足每个GT流的预期带宽。从选定的测试流量方案中，可以在每个目标节点正确路由和接收BE和GT流的所有分支，而不会丢失数据。

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