Critical Services for Cyberinfrastructure: Accounting, Authentication, Authorization, and Accountability Services

该项目为TeraGrid提供计费、认证、授权和责任（AAAA）服务。 TeraGrid网格基础设施组将负责提供服务，网格基础设施组的四个合作伙伴将实施这些活动。 芝加哥大学将发挥协调作用。 德克萨斯州高级计算中心和国家超级计算应用中心（NCSA）将共同负责分配和提案管理。NCSA将支持认证和授权活动，而圣地亚哥超级计算机中心和NCSA将负责会计和问责制。 分配和提案管理活动包括接收和评估分配请求的机制-如果请求较大，则由外部小组评估，如果请求较小，则由TeraGrid的工作人员评估。 这包括维护和操作支持提交计算机分配申请和考绩程序的网上资源。 身份验证和授权活动维护通过TeraGrid登录对用户进行身份验证所需的信息，以及有关为特定用户帐户授权的各种类型的资源访问的信息。 这包括支持与科学网关相关的社区账户。 会计和问责活动记录与各种TeraGrid资源相关的访问和使用情况，维护一个中央TeraGrid范围的会计数据库以及确保与各个资源相关的会计信息以安全和及时的方式从资源提供者传播到中央数据库所需的政策和机制。 这些服务对于TeraGrid的运行至关重要，TeraGrid作为美国学术研究的主要计算资源，是数百个跨学科研究和教育项目的关键基础设施。

This project provides Accounting, Authentication, Authorization and Accountability (AAAA) services for the TeraGrid. The TeraGrid Grid Infrastructure Group will take responsibility for providing the services, with four of the partners in the Grid Infrastructure Group implementing these activities. The University of Chicago will play a coordinating role. The Texas Advanced Computing Center and the National Center for Supercomputing Applications (NCSA) will share responsibility for allocations and proposal management. NCSA will support the authentication and authorization activity, while the San Diego Supercomputer Center and NCSA will be responsible for accounting and accountability. The allocations and proposal management activity comprises the mechanisms by which requests for allocations are received and evaluated - by an external panel if the request is large, and by the staff of the TeraGrid, if the request is small. This includes maintenance and operation of the web-based resource that supports the submission of computer allocation requests and the merit-review process. The authentication and authorization activity maintains the information necessary to authenticate a user through a TeraGrid login and information about the various types of resource access authorized for a particular user's account. This includes support for community accounts associated with science gateways. The accounting and accountability activity records access and usage associated with the various TeraGrid resources, maintaining a central TeraGrid-wide accounting database as well as the policies and mechanisms needed to ensure that accounting information generated associated with individual resources is propagated from the resource providers to the central database in a secure and timely manner. These services are essential to the operation of the TeraGrid which, as the nation's primary computing resource for academic research, is a critical infrastructure for hundreds of research and educational projects across a wide range of disciplines.