Information Technology Research (ITR): Virtual Grid Application Development Software (VGrADS)

正如《网格：新计算基础设施的蓝图》中所描述的，并通过许多概念验证应用程序所证明的，“计算网格”承诺将计算机、数据库和人连接在一个网络中，以解决科学研究和其他不同领域的问题。然而，复杂性，不可靠性，以及在今天的系统中的低级别操作的开销掩盖了网格的潜力。为期五年的虚拟网格应用开发软件（VGrADS）项目解决了这个问题的一个基本部分-如何更有效地编程这些高度复杂和动态的系统。它将开发软件工具，简化和加速网格应用程序和服务的开发，同时提供高水平的性能和资源效率。这种改进的可用性将极大地扩展网格用户和开发人员的社区。在这个过程中，VGrADS将有助于分布式计算的理论和实践。为了实现这些目标，VGrADS将探索，定义和实现一个层次的虚拟资源和一组编程模型的网格计算。它将在三个关键领域进行研究：1。 虚拟网格（vgrid）体系结构支持高级服务和网格固有复杂性之间的关注点分离。 支持创建网格应用程序的编程模型、编译器、组件库和工具。 核心软件技术，包括高性能调度、容错和资源管理经济模型，允许可扩展的网格计算。VGrADS将通过与领先的科学应用程序合作来实现这一议程，以提出关键挑战、验证结果并传播技术。它将以开放源代码的形式为研究社区分发软件。它还将利用现有的计划，在其PI过去在人力资源开发方面取得的成功的基础上，吸引和留住计算科学领域的妇女和少数民族。

The "Computational Grid", as described in The Grid: Blueprint for a New Computing Infrastructure and demonstrated by many proof-of-concept applications, promises to connect computers, databases, and people in a network to solve problems in scientific research and other diverse fields. However, the complexity, unreliability, and overhead of low-level operations in today's systems obscure the Grid's potential. The five-year Virtual Grid Application Development Software (VGrADS) project attacks a fundamental part of this problem - how to more effectively program these highly complex and dynamic systems. It will develop software tools that simplify and accelerate the development of Grid applications and services, while delivering high levels of performance and resource efficiency. This improved usability will greatly expand the community of Grid users and developers. In the process, VGrADS will contribute to both the theory and practice of distributed computation.To address these aims, VGrADS will explore, define, and implement a hierarchy of virtual resources and a set of programming models for Grid computing. It will conduct research in three key areas: 1. Virtual Grid (vgrid) architectures enabling a separation of concerns between high-level services and the Grid's inherent complexity.2. Programming models, compilers, component libraries, and tools supporting creation of Grid applications.3. Core software technologies, including performance-efficient scheduling, fault tolerance, and economic models for resource management, allowing scalable Grid computations.VGrADS will pursue this agenda by collaborating with leading scientific applications to elicit key challenges, validate results, and disseminate technology. It will distribute software that it creates in open-source form for the research community. It will also build on its PIs' past successes in human resource development by using existing programs to attract and retain women and minorities in computational science.