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首页> 外文期刊>IEEE Transactions on Parallel and Distributed Systems >Fault-Tolerant Routing Mechanism in 3D Optical Network-on-Chip Based on Node Reuse
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Fault-Tolerant Routing Mechanism in 3D Optical Network-on-Chip Based on Node Reuse

机译：基于节点重用的3D片上光网络中的容错路由机制

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摘要

The three-dimensional Network-on-Chips (3D NoCs) has become a mature multi-core interconnection architecture in recent years. However, the traditional electrical lines have very limited bandwidth and high energy consumption, making the photonic interconnection promising for future 3D Optical NoCs (ONoCs). Since existing solutions cannot well guarantee the fault-tolerant ability of 3D ONoCs, in this paper, we propose a reliable optical router (OR) structure which sacrifices less redundancy to obtain more restore paths. Moreover, by using our fault-tolerant routing algorithm, the restore path can be found inside the disabled OR under the deadlock-free condition, i.e., fault-node reuse. Experimental results show that the proposed approach outperforms the previous related works by maximum 81.1 percent and 33.0 percent on average for throughput performance under different synthetic and real traffic patterns. It can improve the system average optical signal to noise ratio (OSNR) performance by maximum 26.92 percent and 12.57 percent on average, and it can improve the average energy consumption performance by 0.3 percent to 15.2 percent under different topology types/sizes, failure rates, OR structures, and payload packet sizes.
机译：近年来，三维芯片网络（3D NoC）已成为成熟的多核互连体系结构。然而，传统的电线具有非常有限的带宽和高能耗，使得光子互连有望用于未来的3D光学NoC（ONoC）。由于现有解决方案不能很好地保证3D ONoC的容错能力，因此，本文提出了一种可靠的光路由器（OR）结构，该结构牺牲了较少的冗余性即可获得更多的还原路径。而且，通过使用我们的容错路由算法，可以在无死锁的条件下（即故障节点重用）在禁用的OR内找到还原路径。实验结果表明，在不同的合成流量和实际流量模式下，该方法的吞吐量性能平均比以前的相关工作分别高81.1％和33.0％。它可以将系统的平均光信噪比（OSNR）性能平均提高最多26.92％和12.5％，并且在不同的拓扑类型/大小，故障率， OR结构以及有效载荷包大小。

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