GLITE Tutorial

gLite Architecture

Glite consists of five main building blocks.

• Access services: provide via an interactive UI and a programmable API access to the grid environment.

  UI: user interface.
  API: application programming interface.

• Security services: single sign-on use of services.

  Public key encryption, X.509, SSL.

• Information and monitoring services:

  Publish status of grid resources.

• Data services: provide access to SEs containing (replicas of) files.

  SE: storage elements.

• Job management services: assign via a WM system running on a RB machine user jobs to CEs.

  WM: workload management.
  RB: resource broker.
  CE: computing element.