A short introduction to GRID Gabriel Amorós IFIC

“Grid computing (or the use of computational grids) is the application of several computers to a single problem at the same time — usually to a scientific or technical problem that requires a great number of computer processing cycles or access to large amounts of data.”

Ideal world: one very powerful computer classical computers: 2 p vs quantum computers q p Power supply Storage space Communication lines

Types of “GRIDS”: – Internet – Electric Power Lines – – Large Hadron Collider Physics Experiments GRIDS (ATLAS, CMS, ALICE, LHCb),…

PARTNER Course, Valencia, June

6 ReplicaCatalogue Logging & Book-keeping ResourceBrokerStorageElementComputingElement InformationService Author. &Authen. “User interface”

The EGEE Project Funded by the European Commission, the Enabling Grids for E-sciencE (EGEE) project is the biggest Grid infrastructure project of the EU. The third two-year phase of the project started on 1 May 2008 and includes: A Grid infrastructure spanning about 250 sites across 50 countries An infrastructure of more than 68,000 CPU available to users 24 hours a day, 7 days a week, More than 20 Petabytes (20 million Gigabytes) of storage. Sustained & regular workloads of 30K jobs/day, reaching up to 150K jobs/day 7

8 Collaborating e-Infrastructures Potential for linking ~80 countries by 2008

9 What is happening now? Real Time Monitor – Java tool – Displays jobs running (submitted through RBs) – Shows jobs moving around world map in real time, along with changes in status (snapshot 16 January 2007)

10 Who is using EGEE? >200 VOs from several scientific domains – Astronomy & Astrophysics – Civil Protection – Computational Chemistry – Comp. Fluid Dynamics – Computer Science/Tools – Condensed Matter Physics – Earth Sciences – Fusion – High Energy Physics – Life Sciences Further applications under evaluation

ESRs at CERN: – Vassiliki Kanellopoulos (and MedAustron) – Faustin Roman (and IFIC) – Daniel Abler (and Oxford)

Thank you!