Use Cases

This is a list of "use cases" the UIG would like to make available. The use cases are short documents which treat subjects of interest for users. The use cases will be augmented by general documentation provided on the main UIG website. Introductory documents which need to be provided are:

  • Basic Grid Concepts ("Grid for Dummies")
  • The EGEE/WLCG Grid
  • Glossary of Terms
  • Inventory of Documentation
These may or may not take the format of an "extended" use cases.

Preliminary Steps

  • Getting an account on a User Interface
  • Getting a certificate
  • Registering to a Virtual Organisation
  • Setting up the UI environment

Simple Use Cases

  • Proxy certificates
    • Normal proxies
    • VOMS proxies
  • Preparing a simple job
    • The JDL syntax
    • The basic JDL attributes
    • The sandbox
    • More JDL attributes
    • Matching jobs to resources
  • Running a job
    • Submitting single jobs
  • Monitoring a job
    • Job status
    • Logging & Bookkeeping
  • Getting back the output
  • Simple data management
    • The LCG utils
    • The LFC command line

Intermediate Use Cases

  • Using the proxy renewal service
  • Job requirements on data
  • Advanced sandbox management
  • Preparing complex jobs
    • Preparing collections
    • Preparing DAGs
    • Preparing parametric jobs
  • Running complex jobs
    • Submitting collections, DAGs and parametric jobs
  • Querying the Information System
  • Service Discovery
  • Advanced data management
    • SRM
    • GFAL
    • LFC API
  • Using the Short-Deadline Job (SDJ) configuration

Expert Use Cases

  • Installing a User Interface
  • Understanding the Logging & Bookkeeping
  • Installing VO software on the Grid
    • Sending software with jobs
    • Parachute method of VO software installation
    • Persistent installation of VO software
  • Using the File Transfer Service
  • MPI
    • Using MPI-1 (LAM, MPICH)
    • Using MPI-2 (OpenMPI, MPICH-2)
  • Job Monitoring (via R-GMA)
  • Data Encryption
  • Using AMGA Metadata Catalog
  • Workflow

-- AndreaSciaba - 14 Nov 2006

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Topic revision: r5 - 2008-01-21 - LaurenceField
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