Multicomputer Resource Management Algorithms

9212369 Reed我们建议开发一个便携工具集来探索可伸缩输入/输出系统的设计空间。该工具集将采用用户级输入库的形式，可跨多个并行系统移植，允许在有限的人力资源下进行广泛的实验。这些输入/输出库将由用户输入/输出调用调用，并将依赖于底层系统软件进行物理输入/输出。在应用程序和系统软件之间插入库将允许我们快速试验各种数据分发和数据管理算法。例如，本地预读和后写策略可以在用户级库中实现。或者，我们可以探索与分布式缓存相结合的协调全局预取策略。

9212369 Reed We propose to develop a portable tool set to explore the design space for scalable input/output systems. This tool set will take the form of a user-level input library that will be portable across several parallel systems, permitting a wide range of experimentation with modest human resources. These input/output libraries will be invoked by user input/output calls and will rely on the underlying system software for physical input/output. Interposing the libraries between the application and the system software will allow us to quickly experiment with a variety of data distribution and data management algorithms. For example, local read ahead and write behind policies could be implemented in the user-level library. Alternatively, we could explore coordinated global prefetching policies coupled with distributed caching.