Speaker
Andy Morris
(Aix Marseille Univ, CNRS/IN2P3, CPPM, Marseille, France)
Description
Since 2022, the LHCb detector is taking data with a full software trigger at the LHC proton proton collision rate, implemented in GPUs in the first stage and CPUs in the second stage. This setup allows to perform the alignment & calibration online and to perform physics analyses directly on the output of the online reconstruction, following the real-time analysis paradigm.
This talk will discuss challenges of the heterogeneous trigger implementations, the first running experiences, and show preliminary performance results of both stages of the trigger system.
Author
Andy Morris
(Aix Marseille Univ, CNRS/IN2P3, CPPM, Marseille, France)
