Grid Technology

1
Grid Technology
THE GOAL provide users with seamless access to
computing resources independent of geographical
location
The development of middleware for distributed
computing started in the 90s, then evolved to
grid technologies

• in the US
• Condor, Legion, Cactus, .
• The Globus Project (de facto standard)
• Teragrid, GriPhyn, iVDGL, Open Science Grid,
• and in Europe
• Unicore
• European DataGrid Project (EDG)
• European DataTAG Project (EDT)
• LHC Computing Grid Project (LCG)
• Crossgrid, NorduGRID, GridPP, Grid-IT,
• The InfnGrid Project (http//grid.infn.i
  t)
• The EGEE Project (http//www.eu-egee.org)
• And many other national and international grid
  projects

GRID MIDDLEWARE

• The GRID middleware provides transparent access
• to distributed computing and storage resources by
• means of a set of basic grid services
• Authentication and Authorization
• Information System (for resource availability)
• Workload Management Service (for job scheduling)
• Data Management (for file access and replication)
• Secure and reliable file transfer service
• Monitoring and Accounting

• The GRID middleware release for the production
  Grid in Europe
• developed within the DataGrid Project
• consolidated within the LCG Project
• improved within the EGEE project

• APPLICATIONS
• Grid users run more than 60 applications in
  different areas
• High Energy Physics
• Earth Observation
• Biomedicine
• Computational Chemistry
• Medical images analysis
• 3D magnetic resonance images
• simulations
• Genome evolution modeling
• Simulation of material properties
• Simulation of bio organisms and
• phenomena
• Drug discovery
• Protein analysis
• and many others

THE GRID INFRASTRUCTURE

• The GRID.IT infrastructure
• More than 30 sites all over Italy
• Part of the EGEE/LCG grid (more than 200 sites)
• Middleware InfnGrid-2.6.0, based
• on LCG-2.6.0

THE GRID IS OPERATIONAL SINCE 2003