A Comparison of CPU and GPU Implementations for the LHCb Experiment Run 3 Trigger
Name
41781_2021_Article_70.pdf
Size
2.5 MB
Format
Adobe PDF
Checksum (MD5)
c7213b4c8fc8a1e3151fd2c0539d49eb
Author(s)
Aaij, R.
Adinolfi, M.
Aiola, S.
Akar, S.
Albrecht, J.
Alexander, M.
Amato, S.
Amhis, Y.
Archilli, F.
Bala, M.
Date Issued
December 22, 2021
Publisher
Springer International Publishing
Citation
Computing and Software for Big Science. 2021 Dec 22;6(1):1
Version
Final published version
Abstract
Abstract
The Large Hadron Collider beauty (LHCb) experiment at CERN is undergoing an upgrade in preparation for the Run 3 data collection period at the Large Hadron Collider (LHC). As part of this upgrade, the trigger is moving to a full software implementation operating at the LHC bunch crossing rate. We present an evaluation of a CPU-based and a GPU-based implementation of the first stage of the high-level trigger. After a detailed comparison, both options are found to be viable. This document summarizes the performance and implementation details of these options, the outcome of which has led to the choice of the GPU-based implementation as the baseline.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Terms of Use
Creative Commons Attribution
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1007/s41781-021-00070-2
