First experiences with the LHCb heterogeneous software trigger

2024/12/06 by Morris, Andy · 1 citation
Physics and Astronomy · Computer Science · #Particle physics theoretical and experimental studies #Particle Detector Development and Performance #Distributed and Parallel Computing Systems

paper · pdf · doi:10.48550/arxiv.2412.05041

Abstract

Since 2022, the LHCb detector has been taking both proton-proton and lead-ion data at the LHC collision rate using a fully software-based trigger. This has been implemented on GPUs at its first stage and CPUs at its second. The setup allows for reconstruction, alignment, calibration and selections to be performed online -- known as the real time analysis paradigm. As well as this, physics analyses are performed using the output of online reconstruction with early results shown using data taken in 2022.

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• Review of Machine Learning for Real-Time Analysis at the Large Hadron Collider experiments ALICE, ATLAS, CMS and LHCb

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