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A Simple Data Transfer Technique Using Local Address for Networks-on-Chips

机译：一种使用本地地址进行片上网络的简单数据传输技术

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Networks-on-chips (NoCs) have been studied to connect a number of modules in a chip by introducing a network structure which is similar to that in parallel computers. Since embedded streaming applications usually generate predictable small-sized data traffic, the network structure can be customized to the target traffic. Accordingly, we develop a data transfer technique for simplifying routers for predictable small-sized communication in simple tile-based architectures. A data structure is split into single-flit packets, and a label is attached to each of them in order to route them independently. A label is transferred on dedicated wires beside data lines in a channel by taking advantage of relaxed pin count limitations of a channel. To reduce the wiring area for the label, the label is locally assigned according to a preanalysis of required communication pairs of nodes. Analysis results show that only a 3-bit local label is sufficient to route all data of evaluated streaming applications in the case of a 16-node 2D torus. The required amount of hardware for a router is reduced by 37 percent compared with that for a wormhole packet router with the same number of routing table entries
机译：已经研究了片上网络（NoC），通过引入类似于并行计算机中的网络结构来连接芯片中的多个模块。由于嵌入式流应用程序通常会生成可预测的小型数据流量，因此可以根据目标流量定制网络结构。因此，我们开发了一种数据传输技术，可简化基于简单图块的体系结构中可预测的小型通信的路由器。数据结构被拆分为单包数据包，并在每个数据包上附加标签以独立地路由它们。利用宽松的通道引脚数限制，可以在通道数据线旁边的专用线上传输标签。为了减少标签的布线面积，根据对所需节点通信对的预先分析，对标签进行本地分配。分析结果表明，在16节点2D圆环的情况下，仅3位本地标签足以路由已评估流应用程序的所有数据。与具有相同路由表条目数量的蠕虫包路由器相比，路由器所需的硬件数量减少了37％。

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