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Communication driven remapping of processing element (PE) in fault-tolerant NoC-based MPSoCs

机译:基于容错的NoC的MPSoC中通信驱动的处理元素(PE)的重新映射

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We propose a remapping algorithm to tolerate the failures of Processing Elements (PEs) on Multiprocessor System-on-Chip. A new graph modeling is proposed to precisely define the increase of communication cost among PEs after remapping. Our method can be used not only to repair faults but also to improve the communication cost of given initial mapping results. Experimental results show that under multiple failures, the communication cost by our method is 43.59% less on average compared with that by previous work [1] using the same number of spare PEs. Moreover, the communication cost is further reduced by 4.16% after applying our method to initial mappings produced by NMAP [2].
机译:我们提出了一种重新映射算法来容忍多处理器片上系统上的处理元件(PE)的故障。提出了一种新的图模型,以精确定义重新映射后PE之间的通信成本增加。我们的方法不仅可以用于修复故障,而且可以提高给定初始映射结果的通信成本。实验结果表明,在多个故障下,与使用相同数量的备用PE的先前工作[1]相比,我们的方法的通信成本平均降低了43.59%。此外,将我们的方法应用于NMAP生成的初始映射后,通信成本进一步降低了4.16%[2]。

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