Fast 3D tracking with GPUs for analysis of antiproton annihilations in emulsion detectors

Ariga, Akitaka

doi:10.3204/DESY-PROC-2014-05/21

Contribution to a conference proceedings/Internal Report

PUBDB-2015-05339

Fast 3D tracking with GPUs for analysis of antiproton annihilations in emulsion detectors

Ariga, A.

2015
Deutsches Elektronen-Synchrotron, DESY Hamburg

GPU Computing in High-Energy Physics, GPUHEP2014, Pisa, Italy, 10 Sep 2014 - 12 Sep 2014 Hamburg : Deutsches Elektronen-Synchrotron, DESY 119-124 (2015) [10.3204/DESY-PROC-2014-05/21]

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Please use a persistent id in citations: doi:10.3204/DESY-PROC-2014-05/21

Report No.: DESY-PROC-2014-05

Abstract: Fast 3D particle tracking has been a challenge in particle physics for a long time. In particular, the data rate from emulsion detectors is recently about 10-100 TB/day from one microscope. Real-time 3D volume processing and track reconstruction of such a huge data need a large amount of computation, in which the GPU technology plays an essential role. A fast 4 π solid angle particle tracking based on GPU technology has been developed for the reconstruction of antiproton annihilations. The results in speed are compared between the multithread CPU processing and the multi-GPU one. By employing multiple GPUs, about two orders of magnitude faster processing has been achieved with an excellent tracking performance in comparison with a single-thread CPU processing

Keyword(s): anti-p p: annihilation ; track data analysis ; performance ; nuclear emulsion ; dimension: 3 ; multiprocessor: graphics ; microprocessor