CAREER: Intelligently Managing the Memory Hierarchy of Future High Performance Servers

职业生涯：智能管理未来高性能服务器的内存层次摘要这项研究解决了在十亿晶体管芯片时代高性能服务器设计面临的独特挑战。由多核组成的芯片多处理器共享存储层次结构并同时运行多个独立的线程，这代表了未来并行体系结构的一个方向。在这样的体系结构中，如果管理不当，对共享资源(如缓存和片外带宽)的争用可能会产生抖动并显著降低服务器性能。在这项研究中，提出了一种涉及计算机体系结构、编译器和操作系统的协同方法来解决基于芯片多处理器的服务器中的资源管理问题。提出了一种智能存储器层次结构(I)以提供对诸如高速缓存、片外带宽和主存储器等资源的细粒度线程间管理(Ii)从服务器卸载关键的存储器绑定功能以及(Iii)减少上下文切换开销。

CAREER: Intelligently Managing the Memory Hierarchy of Future High-Performance ServersAbstractThe research addresses the unique challenges facing high-performance server design in the billion-transistor chip era. Chip multiprocessors consisting of multiple cores that share the memory hierarchy and run many independent threads simultaneously, represent one direction for future parallel architectures. In such architectures, the contention for shared resources such as caches and off-chip bandwidth can produce thrashing and degrade the server performance significantly if not properly managed. In this research a synergistic approach involving computer architecture, compiler, and operating systems is advocated to tackle the problem of resource management in chip multiprocessor based servers. An intelligent memory hierarchy is proposed (i) to provide fine-grain inter-thread management of resources like caches, off-chip bandwidth, and main memory (ii) to offload critical memory-bound functions from the server and (iii) to reduce context switch overheads.