Improving software performance on configurable multicore processors

提高可配置多核处理器上的软件性能

• 批准号: 444957-2012
• 负责人: Karsten, Martin
• 金额: $ 4.95万
• 依托单位: University of Waterloo
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2014
• 资助国家: 加拿大
• 起止时间: 2014-01-01 至 2015-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=554099
• 关键词: Improving; software; performance; configurable; multicore

Due to the power wall in CPU chip design, modern general-purpose processors organize the ever-increasing transistor capacity of CPU dies into multiple independent processing units, or cores. Initially, CPU core configurations were homogeneous and static. However, there is a trend towards CPUs that support dynamic, heterogeneous core configurations. This means that CPU properties such as the number of active cores, the speeds of the active cores, and the cores' cache configurations, can be changed on the fly to fit the characteristics of the CPU's workload. Dynamic adjustment of the CPU configuration offers many potential benefits, including better performance, reduced energy consumption, and improved ability to target CPU resources to high priority workloads.

由于CPU芯片设计中的功率墙，现代通用处理器将CPU芯片的不断增加的晶体管容量组织成多个独立的处理单元或核心。最初，CPU核心配置是同构和静态的。然而，有一种趋势是CPU支持动态的、异构的内核配置。这意味着可以动态更改CPU属性（例如活动内核的数量、活动内核的速度以及内核的缓存配置），以适应CPU工作负载的特性。CPU配置的动态调整提供了许多潜在的好处，包括更好的性能、更低的能耗，以及更好地将CPU资源用于高优先级工作负载的能力。