Indico has been updated to v3.3. See our blog post for details on this release. (OTG0146394)

The CMS Tier-0 goes Cloud and Grid for LHC Run 2

Apr 13, 2015, 6:00 PM
B503 (B503)



oral presentation Track5: Computing activities and Computing models Track 5 Session


Dirk Hufnagel (Fermi National Accelerator Lab. (US))


In 2015, CMS will embark on a new era of collecting LHC collisions at unprecedented rates and complexity. This will put a tremendous stress on our computing systems. Prompt Processing of the raw data by the Tier-0 infrastructure will no longer be constrained to CERN alone due to the significantly increased resource requirements. In LHC Run 2, we will need to operate it as a distributed system utilizing both the CERN Cloud-based Agile Infrastructure and a significant fraction of the CMS Tier-1 Grid resources. In another big change for LHC Run 2, we will process all data using the multi-threaded framework to deal with the increased event complexity and to ensure efficient use of the resources. This contribution will cover the evolution of the Tier-0 infrastructure and present scale testing results and experiences from the first data taking in 2015.

Primary author

Dirk Hufnagel (Fermi National Accelerator Lab. (US))


Anthony Tiradani (Fermilab) Luis Contreras (Fermi National Accelerator Lab. (US)) Oliver Gutsche (Fermi National Accelerator Lab. (US))

Presentation materials