Ing. De Sistemas

Accounting System
Scope
This system proposes to bring together a very heterogeneous group of resource providers, customers and users in a grid environment that fully supports opportunistic resourceconsumptions. In order to succeed , must provide its users with precise and reliable information about resources utilization.
The accounting system main functionalities will be to collect resourceusage data, and process them to produce accounting records. Furthermore, the accounting system will provide tools and repositories that users and applications will use to view and analyze accountinginformation.
A Grid Model for Accounting
A resource, such as disk storage space, CPU time and communication bandwidth is consumed in the provision of a grid service. A service results by adding valueto one or more resources. In some cases, this added value is low: for example, when the service just provides an interface to the resource; in other cases a service might include considerableintelligence: installation of libraries, resource allocation algorithms, jobs monitoring, etc.
Services might use other services to satisfy a user’s request. We define such services Composite Services. Incontrast, we call Basic Services those services that simply use resources and do not relay on other autonomous services.
Basic Service
Composite Service
Job Sched.
Disk Storage
ResourceService
Gatekeeper
Accounting
Job Sched.
Monitoring
Authentication
(GUMS)
Basic Service
Composite Service
Job Sched.
Disk Storage
Resource
Service
Gatekeeper
Accounting
Job Sched.
MonitoringAuthentication
(GUMS)

Main Functionalities
1. The ability to measure accurately the resource s usage and file transfer service per user.
2. The ability to store and manage theaccounting information and the data used to generate it.
3. The ability to present accounting information to users with different views depending of the user’s goals.
4. The ability to support...