GPU-Based Tracking Algorithms for the ATLAS High-Level Trigger

D. Emeliyanov, J. Howard
STFC Rutherford Appleton Laboratory, Harwell Science and Innovation Campus, Didcot, UK
Journal of Physics: Conference Series, Volume 396, Part 1, 012018, 2012


   title={GPU-Based Tracking Algorithms for the ATLAS High-Level Trigger},

   author={Emeliyanov, D. and Howard, J.},




Download Download (PDF)   View View   Source Source   



Results on the performance and viability of data-parallel algorithms on Graphics Processing Units (GPUs) in the ATLAS Level 2 trigger system are presented. We describe the existing trigger data preparation and track reconstruction algorithms, motivation for their optimization, GPU-parallelized versions of these algorithms, and a "client-server" solution for hybrid CPU/GPU event processing used for integration of the GPU-oriented algorithms into existing ATLAS trigger software. The resulting speed-up of event processing times obtained with high-luminosity simulated data is presented and discussed.
No votes yet.
Please wait...

* * *

* * *

HGPU group © 2010-2021 hgpu.org

All rights belong to the respective authors

Contact us: