研究存储值局部性对处理器功耗的影响

2015 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (PACRIM) Pub Date : 2015-11-30 DOI:10.1109/PACRIM.2015.7334858

Saman Khoshbakht, N. Dimopoulos

{"title":"研究存储值局部性对处理器功耗的影响","authors":"Saman Khoshbakht, N. Dimopoulos","doi":"10.1109/PACRIM.2015.7334858","DOIUrl":null,"url":null,"abstract":"The power requirements of a single workload may vary depending on the program phase, or region. In order to monitor the power dissipation of the processor, multiple power models have been previously proposed. These models rely on the performance counters to estimate the power dissipation of the processor. To the best of our knowledge, this work is the first to investigate the effects of the value of the data being processed in the workload on power. It is shown that the power requirements of the processor correlates with the amount of bit-flips necessary to store a new value over the previous one and considering value locality can improve the power model of store performing instructions to up to 7%. This work shows the limitations of relying solely on performance counters and introduces the need to investigate the data flow of the workload in addition to the control flow, in order to achieve more precise power estimations.","PeriodicalId":350052,"journal":{"name":"2015 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (PACRIM)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2015-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":"{\"title\":\"Investigating the effects of store value locality on processor power\",\"authors\":\"Saman Khoshbakht, N. Dimopoulos\",\"doi\":\"10.1109/PACRIM.2015.7334858\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The power requirements of a single workload may vary depending on the program phase, or region. In order to monitor the power dissipation of the processor, multiple power models have been previously proposed. These models rely on the performance counters to estimate the power dissipation of the processor. To the best of our knowledge, this work is the first to investigate the effects of the value of the data being processed in the workload on power. It is shown that the power requirements of the processor correlates with the amount of bit-flips necessary to store a new value over the previous one and considering value locality can improve the power model of store performing instructions to up to 7%. This work shows the limitations of relying solely on performance counters and introduces the need to investigate the data flow of the workload in addition to the control flow, in order to achieve more precise power estimations.\",\"PeriodicalId\":350052,\"journal\":{\"name\":\"2015 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (PACRIM)\",\"volume\":\"35 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2015-11-30\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"3\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2015 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (PACRIM)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/PACRIM.2015.7334858\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2015 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (PACRIM)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/PACRIM.2015.7334858","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 3

摘要

单个工作负载的功率需求可能因程序阶段或地区而异。为了监控处理器的功耗，之前已经提出了多种功率模型。这些模型依赖于性能计数器来估计处理器的功耗。据我们所知，这项工作是第一个研究工作负载中处理的数据值对电源的影响的工作。结果表明，处理器的功耗需求与存储新值所需的比特翻转量相关，考虑值局域性可以将存储执行指令的功耗模型提高到7%。这项工作显示了仅依赖性能计数器的局限性，并介绍了除了控制流之外，还需要调查工作负载的数据流，以实现更精确的功率估计。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Investigating the effects of store value locality on processor power

The power requirements of a single workload may vary depending on the program phase, or region. In order to monitor the power dissipation of the processor, multiple power models have been previously proposed. These models rely on the performance counters to estimate the power dissipation of the processor. To the best of our knowledge, this work is the first to investigate the effects of the value of the data being processed in the workload on power. It is shown that the power requirements of the processor correlates with the amount of bit-flips necessary to store a new value over the previous one and considering value locality can improve the power model of store performing instructions to up to 7%. This work shows the limitations of relying solely on performance counters and introduces the need to investigate the data flow of the workload in addition to the control flow, in order to achieve more precise power estimations.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

2015 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (PACRIM)

自引率

0.00%

发文量