ITR: Unifying Software Frameworks for Distributed Computing

提出了一种分布式计算的体系结构框架，以统一多种资源共享模型。场计算、私有虚拟机、计算网格和点对点技术都是di的例子。已经发展到支持di的事件范式。事件应用程序域。然而，尽管它们的共同基本主题是跨计算机网络共享资源，但实现这些技术的系统往往会排除互操作性，并且在某些情况下，需要大量的中间件来编排资源聚合。该项目采用以提供者为中心的资源共享视图，强调维护最小状态的轻量级软件基础设施，并促进与当前和新兴分布式计算标准的直接接口。通过可重构的、基于组件的方法，所提议的框架将尝试在统一设置中为多个分布式计算范例提供支持。本项目中采用的提供者视角设想资源所有者托管一个软件背板，所有者、客户或第三方经销商可以将交付增值服务的组件或组件套件加载到该背板上。所有者保留对资源的使用、安全和保护的完全控制。组件可以实现消息传输或数学转换等基本功能，或者可以聚合以模拟并发计算环境，或者可以为复杂的后端应用程序服务提供门户接口。原始资源或组件的提供者可以使用标准机制、框架提供的方案或私有目录发布它们的可用性；客户端根据使用和安全约束发现、查找和使用这些服务。在这个项目的实施中，有关分布式系统中的共性和二元性、安全资源共享和软件重构的基本问题将被探索，并可能为该领域贡献新的和有用的发现。由于其强烈的实用主义倾向，该项目还可能通过提出实现有效分布式计算系统的方案以及通过发展原型范例软件而产生广泛的影响。

An architectural framework for distributed computing is proposed, with a view to unifying multiple resource sharing models. Farm computing, private virtual machines, computational grids, and peer to peer technologies are examples of di.erent paradigms that have evolved to support di.erent application domains. However, despite their common underlying theme of sharing resources across computer networks, systems implementing these technologies tend to preclude interoperability and, in some cases, require substantial middleware to orchestrate resource aggregation. This project adopts a provider-centric view of resource sharing, emphasizes lightweight software infrastructures that maintain minimal state, and facilitates straightforward interfacing to current and emerging distributed computing standards. Through a reconfigurable, component-based approach, the proposed framework will attempt to provide support for multiple distributed computing paradigms in a unified setting. The provider perspective adopted in this project envisions resource owners hosting a software backplane onto which owners, clients, or third-party resellers may load components or component suites that deliver value added services. Complete control over usage, security, and protection of resources is retained by the owner. Components may implement primitive functions such as message transport or mathematical transforms, or may be aggregated to emulate concurrent computing environments, or may ofer portal interfaces to complex backend application services. Providers of primitive resources or components may publish their availability using either standard mechanisms, framework-supplied schemes, or private directories; clients discover, lookup, and use these servicessubject to usage and security constraints.In the conduct of this project, fundamental issues concerning commonalities and dualities in distributed systems, secure resource sharing, and software reconfiguration will be explored, and will likely contribute new and useful findings to the field. Owing to its strong pragmatic bias, the project is also likely to have broad impact by suggesting schemes to realize effective distributed computing systems, and by evolving prototype paradigmatic software.