Memory Management Issues in Large Scale Shared Memory MIMD Multiprocessors.

对于在紧密耦合的MIMD机器中管理各种级别共享存储的操作系统机制和策略的研究还处于早期阶段。对于拥有数百个处理器的大型机器来说更是如此。该项目将继续对这些问题进行多年的大规模调查，重点是Butterfly多处理器。具体的项目分为以下几类：工作负载表征、跨并行主存的共享数据迁移、在多个辅助内存的设置中管理虚拟内存（每个辅助内存与一个主存相关联），以及文件系统设计。

The study of operating system mechanisms and policies for the management of various levels of shared storage in tightly-coupled MIMD machines is at an early stage. This is even more true for the case of large-scale machines with hundreds of processors. This project will continue a multiyear investigation of these issues in the large-scale case with a focus on the Butterfly multiprocessor. Specific projects divide into the following classes: workload characterization, shared data migration across parallel main memories, management of virtual memory in a setting of multiple secondary memories each associated with a main memory, and file system design.