Power-Aware Multicore Processing

功耗感知多核处理

• 批准号: 261369-2012
• 负责人: Baniasadi, Amirali
• 金额: $ 1.6万
• 依托单位: University of Victoria
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=571016
• 关键词: Power; Aware; Multicore; Processing

The goal of this proposal is to develop techniques to reduce power dissipation in multicore processors. Multicore processors, also referred to as chip multiprocessors (or simply CMPs), are employed in a wide range of computing systems from data centers to desktops and embedded processors. The energy consumed by such computing systems accounts for a considerable share of our daily energy consumption. Therefore, developing power efficient multicore processors is a critical aspect of green computing. CMPs achieve high performance by using multiple processor cores on a single chip. While this approach has proven to provide effective means for current technologies, there are several studies that suggest that future CMPs will become power limited. Consequently, providing enough power for the chip will require turning off some sections. One way to reduce the proportion of these unused sections (also referred to as dark silicon) is to develop low-power CMPs. We will investigate solutions for enhancing power efficiency in future CMPs. To achieve this goal we suggest developing alternative power-aware designs. We will investigate a number of issues influencing the overall power dissipation in CMPs. We will study power scalability and the parameters contributing to the excessive power dissipation growth in large-scale CMPs. We will also analyze resource utilization in different CMP designs and identify resource utilization inefficiencies. We will use our findings to redesign conventional CMPs for better power efficiency. Our proposed research makes important contributions to Canadian society. First, the proposed research program aims at developing "greener" computing infrastructures where power hungry processors are replaced with low-power alternatives. Second, the resulting knowledge belongs to an area critical to Canada's future leadership in advanced technologies. Many Canadian companies can benefit from the findings of the proposed research and the resulting HQP training.

本提案的目标是开发降低多核处理器功耗的技术。多核处理器，也称为芯片多处理器（或简称CMP），用于从数据中心到台式机和嵌入式处理器的各种计算系统中。这种计算系统消耗的能量占我们日常能量消耗的相当大的份额。因此，开发高能效的多核处理器是绿色计算的一个关键方面。 CMP通过在单个芯片上使用多个处理器内核来实现高性能。 虽然这种方法已被证明为当前技术提供了有效的手段，但有几项研究表明，未来的CMP将受到功率限制。因此，为芯片提供足够的电力将需要关闭某些部分。减少这些未使用部分（也称为暗硅）的比例的一种方法是开发低功耗CMP。 我们将在未来的CMP中研究提高电源效率的解决方案。 为了实现这一目标，我们建议开发替代的功耗感知设计。 我们将研究一些影响CMP中整体功耗的问题。我们将研究功率的可扩展性和参数的过度功耗的增长，在大规模的CMP。我们还将分析不同CMP设计中的资源利用率，并确定资源利用效率低下的情况。我们将利用我们的研究结果来重新设计传统的CMP，以获得更好的功率效率。 我们的研究为加拿大社会做出了重要贡献。首先，拟议的研究计划旨在开发“绿色”计算基础设施，其中耗电的处理器被低功耗的替代品所取代。 其次，由此产生的知识属于加拿大未来在先进技术方面的领导地位的关键领域。许多加拿大公司可以从拟议的研究结果和由此产生的HQP培训中受益。