CAREER: Hardware/Software Real-Time Operating System Design and Synthesis for System-on-a-Chip

职业：片上系统的硬件/软件实时操作系统设计和综合

• 批准号: 9984808
• 负责人: Vincent Mooney
• 金额: $ 22.48万
• 依托单位: Georgia Tech Research Corporation
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-06-01 至 2004-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9984808&HistoricalAwards=false
• 关键词: CAREER; Hardware; Software; Real; Time

Future systems built on a billion-transistor chip will be immensely complex. These Systems-on-a-Chip (SoC) will be built with multiple heterogeneous processor cores, and an operating system is needed to control the interactions between and computations occurring in both hardware and software. This project is developing a Systems-on-a-Chip Operating System (SoCOS) implementation with timing guarantees able to satisfy hard real-time application demands. The following topics are being explored: (1) a SoCOS compiler where part of the SoCOS is implemented in hardware in order to both speed up critical bottlenecks and more effectively manage concurrency among hardware and software; and (2) design and synthesis of a Dynamic Memory Management Unit (DMMU) in hardware for multiple processors and hardware, where the SoC has two main levels of memory hierarchy: each processor's local cache, and larger on-chip memory. The DMMU handles allocation of the larger on-chip memory; software on each processor handles its local cache. A quantification of the trade-offs among implementation and synthesis strategies for SoC Operating Systems is being investigated.

在十亿个晶体管芯片上构建的未来系统将非常复杂。这些片上系统（SoC）将使用多个异构处理器内核构建，并且需要一个操作系统来控制硬件和软件之间的交互和计算。该项目正在开发一个片上系统操作系统（SoCOS）的实现，具有能够满足硬实时应用需求的时序保证。正在探索以下主题：（1）SoCOS编译器，其中SoCOS的一部分在硬件中实现，以便加速关键瓶颈并更有效地管理硬件和软件之间的并发性;以及（2）设计和合成用于多个处理器和硬件的硬件中的动态存储器管理单元（DMMU），其中SoC具有两个主要级别的存储器层次结构：每个处理器的本地缓存和更大的片上存储器。DMMU负责分配较大的片上内存;每个处理器上的软件负责处理其本地缓存。正在研究SoC操作系统的实现和合成策略之间的权衡的量化。