The Worldwide LHC Computing Grid (WLCG) is composed of four levels, or “Tiers”, called 0, 1, 2 and 3. Each Tier is made up of several computer centers and provides specific set of services. All the data from the Large Hadron Collider (LHC) is processed, stored and analyzes on these tiered-computing systems. Tier 0 is located at CERN, T1 are located at main national laboratories, T2 and T3 are located at either universities or national laboratories. Anybody working on LHC data can access (analyze data and receive the results) on T2 and T3 through their local computer or personal laptops.
Individual scientists can access the Grid through local Tier 3 computing resources, which can consist of local clusters in a university department or even an individual PC.
UMD Physics Department hosts one of the Tier 3 centers. This page is dedicated to information needed for general use of these resources.
System Manager:
Shabnam Jabeen (jabeen@umd.edu)