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首页> 外文期刊>IEEE Transactions on Parallel and Distributed Systems >Local Congestion Avoidance in Network-on-Chip
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Local Congestion Avoidance in Network-on-Chip

机译：片上网络中的本地拥塞避免

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Network-on-Chip (NoC) has been made the communication infrastructure for many-core architecture. NoC are subject to congestion, which is claimed to be avoided by many researchers. However, there is no completely understanding of congestion in literature, which hinders its solution. Toward this direction, we firstly carry out study on congestion in this paper. We find that congestion usually occurs at a portion of nodes in a local network region. Moreover, local congestion will significantly decrease system performance and mostly impact some particular communication pairs. Then we attempt to solve local congestion by addressing different local region size, based on Divide-Conquer approach and routing pressure. It avoids congestion in every local region by keeping routing pressure of every local region minimum. Using different local region size will create different routings. Our study shows that the local region size is closely related with the routing performance. When local region size is $5times 5$ the optimal routing performance of large size network could be achieved.
机译：片上网络（NoC）已成为多核体系结构的通信基础结构。 NoC容易出现拥塞，许多研究人员声称可以避免。但是，对文学中的拥塞并没有完全理解，这阻碍了它的解决。朝着这个方向，我们首先进行拥塞研究。我们发现拥塞通常发生在本地网络区域的一部分节点上。此外，局部拥塞将大大降低系统性能，并在很大程度上影响某些特定的通信对。然后，我们尝试基于分治法和路由压力，通过解决不同的局部区域大小来解决局部拥塞问题。通过使每个局部区域的路由压力保持最小，避免了每个局部区域的拥塞。使用不同的本地区域大小将创建不同的路由。我们的研究表明，本地区域的大小与路由性能密切相关。当本地区域大小为$ 5 x 5 $时，可以实现大型网络的最佳路由性能。

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