| 基于指令流混合比与功能单元匹配的软错误脆弱性控制方法 |
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| 引用本文： | 唐柳,黄樟钦,张会兵. 基于指令流混合比与功能单元匹配的软错误脆弱性控制方法[J]. 计算机应用研究, 2017, 34(1) |
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| 作者姓名： | 唐柳 黄樟钦 张会兵 |
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| 作者单位： | 广西师范学院物理与电子工程学院,北京工业大学嵌入式计算所,计算机科学与工程学院 |
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| 基金项目： | 广西自然科学基金项目（面向泛在网业务需求的服务可信性计算技术研究, 2013GXNSFAA019324), 广西信息科学实验中心项目（面向环绕智能环境的服务信誉度计算研究，20130321），广西可信软件重点实验室项目(可信泛在网络开发与验证平台研究，kx201214) |
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| 摘 要： | 发射队列是处理器流水线的关键结构，,降低发射队列对软错误的敏感性已成为微处理器可靠性设计不可忽视的问题。本文提出一种在处理器流水线前端实施的软错误脆弱性控制方法，该方法在不改变功能单元的情况下，根据指令流混合比与功能单元配置的匹配情况，调节发射队列中的指令类型比例，降低指令在发射队列中的等待时间，从而降低发射队列的体系结构脆弱因子，缓解软错误敏感性。实验结果表明该方法平均减低发射队列的架构易感因子2.8%左右，IPC/AVF提高约4.9%。
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| 关 键 词： | 微处理器可靠性 软错误脆弱性 体系结构脆弱因子 指令流混合比 功能单元配置 |
| 收稿时间： | 2015-12-10 |
| 修稿时间： | 2016-11-27 |
Soft Error Vulnerability Controlling based on Matching of Instruction Flow Mix and Functional Unit Configuration |
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| Tang Liu,Huang Zhangqin and zhanghuibing. Soft Error Vulnerability Controlling based on Matching of Instruction Flow Mix and Functional Unit Configuration[J]. Application Research of Computers, 2017, 34(1) |
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| Authors: | Tang Liu Huang Zhangqin zhanghuibing |
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| Affiliation: | embedded computing Institutes,Beijing University of Technology,Beijing,embedded computing Institutes,Beijing University of Technology,Beijing,Department of computer science and Electronics Engineering,GuiLin University of Electronic Technology,GuiLin |
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| Abstract: | Issue queue is a critical structure in the pipeline. Reducing soft error vulnerability of issue queue cannot be ignored in the field of microprocessor reliability design. This paper proposed a vulnerability controlling method which does not change functional unit configuration. It adjusted the instruction mix in issue queue, reduced the waiting time of instruction in issue queue to reduce the architectural vulnerability factor and receive the goal of mitigation soft error vulnerability. The experiment result shows that average reduces of architectural vulnerability factor are 2.8% and improvement of reliability-performance is 4.9%. |
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