CPA-CSA: Tera-PCM: A Low Power Terabyte Main Memory using Phase Change Memory

CPA-CSA：Tera-PCM：使用相变存储器的低功耗太字节主存储器

• 批准号: 0811295
• 负责人: Bruce Childers
• 金额: $ 30万
• 依托单位: University of Pittsburgh
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-07-15 至 2012-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0811295&HistoricalAwards=false
• 关键词: CPA; CSA; Tera; PCM; Low

The emergence of chip multiprocessors (CMPs) is ushering in a new era of high-performance on the desktop. Within several years, desktop computers could have tens to even hundreds of CPUs, leading to petascale performance. However, a problem looms on the horizon: current memory technology will not keep pace with the terabyte size and scales of future application data sets.This project aims to overcome the obstacles of building a terabyte and beyond main memory. Our approach replaces a large main memory constructed with conventional DRAM with an even larger main memory constructed with phase-change memory (PCM). PCM has good scalability, exceptionally low power consumption, and no susceptibility to errors. To use PCM, there are several challenges, including relatively slow performance and poor write endurance. We will develop a new memory architecture, called Tera-PCM, to manage PCM acceess latency and to increase PCM longevity. Our hypothesis is that Tera-PCM can be used to construct a terabyte memory for desktop CMPs that is performance and endurance competitive with DRAM at a lower power cost. The project will impact both undergraduate and graduate students, through research opportunities and industry internships. Students from under-represented groups in computer science and computer engineering will be recruited to participate, furthering diversity.

芯片多处理器（CMP）的出现在台式机上高性能的新时代。在几年内，台式计算机可能会有数十万的CPU，从而导致Petascale的性能。但是，问题上隐约可见：当前的记忆技术不会跟未来应用程序数据集的TERABYTE大小和尺度保持同步。该项目旨在克服构建Terabyte并超越主要内存的障碍。我们的方法取代了用传统DRAM构建的大型主内存，其使用相变内存（PCM）构建的更大的主存储器。 PCM具有良好的可扩展性，极低的功耗，并且对错误没有敏感性。要使用PCM，有几个挑战，包括相对较慢的性能和耐力差。我们将开发一种名为TERA-PCM的新内存体系结构，以管理PCM Acceess延迟并增加PCM寿命。我们的假设是，TERA-PCM可用于为桌面CMP构建Terabyte内存，该记忆是性能和耐力与DRAM竞争的，以较低的功率成本。 该项目将通过研究机会和行业实习来影响本科和研究生。 来自代表性不足的计算机科学和计算机工程团体的学生将被招募参加，从而促进多样性。