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

职业：智能管理未来高性能服务器的内存层次结构摘要该研究解决了在十亿晶体管芯片时代高性能服务器设计所面临的独特挑战。片上多处理器由多个内核组成，共享存储器层次结构，同时运行许多独立的线程，代表了未来并行架构的一个方向。在这样的架构中，对共享资源（如高速缓存和片外带宽）的争用可能会产生颠簸，如果管理不当，会显著降低服务器性能。在这项研究中，一个协同的方法，涉及计算机体系结构，编译器，和操作系统主张解决问题的资源管理芯片多处理器为基础的服务器。提出了一种智能存储器层次结构，以（i）提供细粒度的线程间资源管理，如高速缓存，片外带宽和主存储器（ii）卸载关键的存储器绑定功能从服务器和（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.