Enhancing energy efficiency of processor-based embedded systems through post-fabrication ISA extension

Hamid Noori, Farhad Mehdipour, Koji Inoue, K. Murakami
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引用次数: 1

Abstract

Application-specific instruction set extension is an effective technique for reducing accesses to components such as on- and off-chip memories, register file and enhancing the energy efficiency. However, the addition of custom functional units to the base processor is required for supporting custom instructions, which due to the increase of manufacturing and design costs in new nanometer-scale technologies and shorter time-to-market, is becoming an issue. To address above issues, in our proposed approach, an optimized reconfigurable functional unit is used instead, and instruction set customization is done after chip-fabrication. Therefore, while maintaining the flexibility of a conventional microprocessor, the low-energy feature of customization is applicable. Experimental results show that the maximum and average energy savings are 67% and 22%, respectively for our proposed architecture framework.
通过制造后ISA扩展提高基于处理器的嵌入式系统的能源效率
应用程序专用指令集扩展是一种有效的技术,可以减少对片内和片外存储器、寄存器文件等部件的访问,提高能源效率。然而,由于新纳米技术的制造和设计成本的增加以及上市时间的缩短,需要在基本处理器上添加定制功能单元以支持定制指令,这正在成为一个问题。为了解决上述问题,在我们提出的方法中,使用优化的可重构功能单元,并在芯片制造后进行指令集定制。因此,在保持传统微处理器的灵活性的同时,可实现定制化的低能耗特性。实验结果表明,所提出的结构框架最大节能67%,平均节能22%。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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