SHF: Small: Energy-Efficient Memory Subsystems for the Many-Core Era

SHF：小型：多核时代的节能内存子系统

• 批准号: 0916539
• 负责人: Ricardo Bianchini
• 金额: $ 38.69万
• 依托单位: Rutgers University New Brunswick
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-08-01 至 2013-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0916539&HistoricalAwards=false
• 关键词: SHF; Small; Energy; Efficient; Memory

The energy consumed by the memory subsystem is increasing as a fraction of the overall server energy consumption. It is anticipated that upcoming low-power, byte-addressable, persistent-memory technologies, namely Phase-Change RAM (PC-RAM) and Spin-Transfer Torque RAM (STT-RAM), are likely to play a major role in conserving server energy. These technologies are far superior to Flash and, most interestingly, may actually replace DRAM as well.The research will study hybrid memory subsystems by combining these technologies and DRAM, as well as DRAM-free memory subsystems. The outcomes of this investigation will be: (1) a body of knowledge about PC-RAM and STT-RAM and their potential benefits and limitations; (2) a collection of memory controller and operating system techniques for using these technologies to conserve energy, while bounding performance degradation to user-defined limits; and (3) a simulation and operating system infrastructure that can be used by others in their investigations of memory and energy issues. This work can promote a new direction in memory subsystem design and energ conservation, one that can have a profound impact on the design of future servers.

内存子系统消耗的能量是整体服务器能源消耗的一小部分。 可以预计，即将到来的低功率，可调地理，持续的内存技术，即相位变化RAM（PC-RAM）和自旋转移扭矩RAM（STT-RAM），可能在保存服务器能源方面起主要作用。 这些技术远优于Flash，最有趣的是，实际上也可能取代DRAM。研究将通过结合这些技术和DRAM以及无DRAM的内存子系统来研究混合记忆子系统。 这项调查的结果将是：（1）有关PC-RAM和STT-RAM的知识及其潜在的好处和局限性； （2）用于使用这些技术来节省能量的内存控制器和操作系统技术的集合，同时将性能降级限制为用户定义的限制； （3）其他人可以在记忆和能量问题的研究中使用的模拟和操作系统基础架构。这项工作可以促进记忆子系统设计和能源保护方面的新方向，该方向可以对未来服务器的设计产生深远的影响。