基于DAMQ的NoC路由器缓冲区有效利用方案
DAMQ-Based Schemes for Efficiently Using the Buffer Spaces of a NoC Router
摘要：
在本文中，我们提出了高性能的动态分配多队列（DAMQ）缓冲区计划的容错系统的芯片上的应用程序，需要一个互连网络。两个或四个虚拟通道共享相同的缓冲区空间。在消息交换层，针对组件通信中出现故障的情况，提出了相应的改进措施，以提高系统的性能。提出的方案是当一个节点或一个物理信道被认为是故障的，前一跳节点将终止缓冲区占用的消息前往故障链路。在交换层进行缓冲区使用决策，无需与更高抽象层交互，从而将缓冲区空间快速释放给去往其他健康节点的消息。因此，在某些节点发生故障的情况下，缓冲区空间将被有效地使用。
英文摘要：
In this paper we present high performance dynamically allocated multi-queue (DAMQ) buffer schemes for fault tolerance systems on chip applications that require an interconnection network. Two or four virtual channels shared the same buffer space. On the message switching layer, we make improvement to boost system performance when there are faults involved in the components communication. The proposed schemes are when a node or a physical channel is deemed as faulty, the previous hop node will terminate the buffer occupancy of messages destined to the failed link. The buffer usage decisions are made at switching layer without interactions with higher abstract layer, thus buffer space will be released to messages destined to other healthy nodes quickly. Therefore, the buffer space will be efficiently used in case fault occurs at some nodes.
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