基于NoC的异构MPSoC中高效数据流控制的动态流链路

C. Helmstetter, Sylvain Basset, R. Lemaire, F. Clermidy, P. Vivet, M. Langevin, Chuck Pilkington, P. Paulin, D. Fuin
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引用次数: 4

摘要

随着片上系统尺寸的增加,通信成本变得至关重要,而片上网络(NoC)带来了创新的解决方案。基于NoC的高效流协议已被广泛研究以解决数据流通信问题。它们通常由一组静态参数控制。然而,新的应用,如高分辨率视频解码器,呈现出更多的数据依赖行为,迫使通信协议支持更高的动态性。为此,我们在本文中通过引入两个独立于传输大小的链路协议,提出了基于流的端到端NoC通信的动态流链路,从而提高了硬件/软件控制的灵活性。在MPSoC虚拟平台上对所提出的协议进行了建模,并对硬件成本进行了评估。在仿真的基础上,我们提供了根据应用需要利用这些协议的指南。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A dynamic stream link for efficient data flow control in NoC based heterogeneous MPSoC
As Systems-on-Chip size increase, the communication costs become critical and Networks-on-Chip (NoC) bring innovative solutions. Efficient stream-based protocols over NoC have been widely studied to address dataflow communications. They are usually controlled by a set of static parameters. However, new applications, such as high-resolution video decoders, present more data-dependent behaviors forcing communication protocols to support higher dynamicity. For this purpose, we present in this paper dynamic stream links for stream-based end-to-end NoC communications by introducing two link protocols, both independent of the transfer size, allowing to improve the hardware/software control flexibility. The proposed protocols have been modeled in a MPSoC virtual platform and the hardware cost evaluated. Based on simulations, we provide guidelines to exploit these protocols according to application needs.
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