CSR - AES Integrative Approaches to Next-Generation Heterogeneous Computing

这个项目解决了网格和元计算系统中的问题，这些问题源于(1)资源类型的异构性，(2)准备和准备应用程序的困难，以及(3)网格中普遍存在的固有的高度动态化。协调不同资源类并动态准备在应用程序执行期间可用的资源的策略是本研究的重点。所采用的方法基于以客户端为中心的覆盖软件，该软件提供对不同资源的统一访问，并辅之以基本上自动化设置和配置的运行时系统。该覆盖通过类似于设备驱动程序运行的服务驱动程序或中介器来统一不同的资源。新资源和可用性变化通过调解器及其对应的服务守护进程的自我部署来处理，从而使覆盖能够自适应地向应用程序呈现底层资源的一致聚合投影。这个名为Unibus的框架旨在支持多种资源类别，访问类型从虚拟化系统到交互外壳、作业调度程序和元调度程序。统一抽象基于标识资源类中的共性并向它们提供统一的接口。动态环境调节建立在自主软件部署的开放标准之上，在中介者和服务守护进程的帮助下，通过应用程序结构和依赖关系的规范来驱动平台准备。统一资源系统采用的这一办法预计将大大加强在多个资源类别和多个管理域之间共享资源的普遍性。通过减少繁琐的设置要求和协调资源多样性，将大大有助于实现网格和元计算的真正愿景。

This project addresses issues in grids and metacomputing systems arising from (1) heterogeneity in resource types, (2) difficulties in preparing and staging applications, and (3) intrinsically high levels of dynamicity common in grids. Strategies to reconcile different resource classes, and to dynamically prepare resources that become available during application execution are the focus of this research. The approach adopted is based on is based on client-centric overlay software that provides unified access to diverse resources, complemented by runtime systems that substantially automate setup and configuration. The overlay unifies heterogeneous resources through service drivers or mediators that operate analogously to device drivers. New resources and variations in availability are handled through self-deployment of mediators and their service daemon counterparts, enabling the overlay to adaptively present applications with coherent aggregated projections of the underlying resources. This framework, termed Unibus, is being designed to accommodate multiple resource classes, ranging in access type from virtualization systems to interactive shells, job schedulers, and metaschedulers. Unification abstractions are based on identifying commonalities within resource classes and presenting uniform interfaces to them. Dynamic environment conditioning builds upon open standards in autonomic software deployment, with specifications of application structure and dependencies driving platform preparation with assistance from mediators and service daemons. This approach adopted by the Unibus system is expected to substantially enhance the prevalence of resource sharing across multiple resource classes and multiple administrative domains. By alleviating tedious setup requirements and reconciling resource diversity, will contribute significantly to realizing the true vision of grids and metacomputing.