Getting to the Bottomline in COMA Research: The Illinois Aggressive COMA Multiprocessor (I-ACOMA)

这个项目的目标是探索未来十年高端计算机的系统架构。一个结合了COMA和NUMA设计的拟议体系结构被用于探索体系结构、应用程序和编译器问题。研究中使用的工具包括执行驱动的模拟器、地址跟踪器、最先进的并行编译器和数据库系统，以及许多工作负载。要探讨的体系结构问题包括合并COMA和NUMA一致性的组织、缓存标签的新用途以及一致性协议的设计。软件问题包括简单的COMA的操作系统中的地址转换和内存管理，COMA中共享数据的数据复制的新用途，为缓存一致架构编译并行代码，以及将并行代码中的显式数据传输编译为用于预取和转发数据的指令。

The goal of this project is to explore the systems architecture of high-end computers to be built a decade from now. A proposed architecture that combines COMA and NUMA designs is being used to explore architectural, applications, and compiler issues. Tools used in the study include an execution-driven simulator, an address tracer, state of the art parallelizing compiler and database systems, and many workloads. The architectural issues to be explored include organizations that merge COMA and NUMA coherence, new uses for cache tags, and design of coherence protocols. Software issues include address translation and memory management within the operating system for a simple COMA, new uses of the data replication that occurs for share data in COMA, compilation of parallel code for cache-coherent architectures, and compilation of explicit data transfers in parallel code into instructions for prefetching and forwarding of data.