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。以Butterfly多处理器为重点，对这些问题进行了大规模的研究。具体的项目分为以下几类：跨并行主存的共享数据迁移，在与主存相关联的多个辅助内存设置中的虚拟内存管理，文件系统设计，以及分布式并发数据结构的设计和评估（这是负责共享内存管理的系统实现中的关键组件）。

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. These issues are investigated in the large-scale with a focus on the Butterfly multiprocessor. Specific projects divide into the following classes: shared data migration across parallel main memories, management of virtual memory in a setting of multiple secondary memories each associated with a main memory, file systems design, and the design and evaluation of distributed, concurrent data structures (which are crucial components in the implementation of systems responsible for shared memory management).