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芯片特征尺寸的减小导致NoC的故障发生率越来越高.针对传统NoC容错算法中容错路由路径过长的问题,提出了一种可重构容错路由算法.该算法基于扩展的细粒度功能故障模型,对邻节点的故障情况及时掌握,并结合新的路由端口优先级策略和奇偶转向模型,实现了数据包的无死锁最优化容错路由.实验表明,该算法的路由路径更接近于最短路由路径,同时以增加较少的硬件开销为代价,获得了更优的容错性能,并具有更低的延迟和更高的吞吐量.
The reduction of chip feature size leads to a higher incidence of NoC faults.Aiming at the problem of fault-tolerant routing in traditional NoC fault tolerant algorithm, a reconfigurable fault-tolerant routing algorithm is proposed, which is based on extended fine-grained function Fault model and the neighbor node’s fault condition to grasp in time, combined with the new routing port priority strategy and the parity-and-turn model, the deadlock-free data packet is optimized and fault-tolerant routing is achieved.Experiments show that the routing path of the algorithm is closer to The shortest routing path at the expense of adding less hardware overhead results in better fault tolerance with lower latency and higher throughput.