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

被引:7
|
作者
Emeliyanov, D. [1 ]
Howard, J. [2 ]
机构
[1] STFC Rutherford Appleton Lab, Harwell Sci & Innovat Campus, Didcot, Oxon, England
[2] Univ Oxford, Oxford OX1 2JD, England
关键词
D O I
10.1088/1742-6596/396/1/012018
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Results on the performance and viability of data-parallel algorithms on Graphics Processing Units(GPUs)in the ATLAS Leve l2 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.There sulting speed-up of event processing times obtained with high-luminosity simulated data is presented and discussed.
引用
收藏
页数:9
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