Abstract
The Collider Detector at Fermilab (CDF) [1] is an experiment at Tevatron collider where protons and antiprotons collide at an energy in the center of mass of 1.96TeV. Tevatron current instantaneous luminosity reached 2.9 × 1032 cm−2 s−1, the highest luminosity reached by an hadronic collider as today; this has provided CDF an integrated luminosity of about 2.7 fb−1. Such an integrated luminosity corresponds to almost 4 × 109 events that have to be processed and made available to the collaboration for physics analysis in a fast and efficient way. At least the same amount of Monte Carlo data is also needed to perform high precision physics measurements or to search for new phenomena. The problem of being able to process, analyze and produce such a large amount of real and simulated data was first addressed in 2001, when CDF computing model was designed. It was based on a dedicated farm, called CAF [2], hosted at Fermi National Laboratory (FNAL), to wich were soon added some dCAFs (distributed CAFs) located at several CDF institutions around the World.
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