CERN Accelerating science

What is it?

The Worldwide LHC Computing Grid (WLCG) is a global computing infrastructure whose mission is to provide computing resources to store, distribute and analyse the data generated by the Large Hadron Collider (LHC), making the data equally available to all partners, regardless of their physical location.

The WLCG combines about 1.4 million computer cores and 1.5 exabytes of storage from over 170 sites in 42 countries. This massive distributed computing infrastructure provides more than 12 000 physicists around the world with near real-time access to LHC data, and the power to process it.

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