Speeding up complex multivariate data analysis in Borexino with parallel computing based on Graphics Processing Unit
Abstract
A spectral fitter based on the graphics processor unit (GPU) has been developed for Borexino solar neutrino analysis. It is able to shorten the fitting time to a superior level compared to the CPU fitting procedure. In Borexino solar neutrino spectral analysis, fitting usually requires around one hour to converge since it includes time-consuming convolutions in order to account for the detector response and pile-up effects. Moreover, the convergence time increases to more than two days when including extra computations for the discrimination of C and external s. In sharp contrast, with the GPU-based fitter it takes less than 10 seconds and less than four minutes, respectively. This fitter is developed utilizing the GooFit project with customized likelihoods, pdfs and infrastructures supporting certain analysis methods. In this proceeding the design of the package, developed features and the comparison with the original CPU fitter are presented.
Keywords
Cite
@article{arxiv.1805.11125,
title = {Speeding up complex multivariate data analysis in Borexino with parallel computing based on Graphics Processing Unit},
author = {X. F. Ding and M. Agostini and K. Altenmuller and S. Appel and V. Atroshchenko and Z. Bagdasarian and D. Basilico and G. Bellini and J. Benziger and D. Bick and G. Bonfini and D. Bravo and B. Caccianiga and F. Calaprice and A. Caminata and S. Caprioli and M. Carlini and P. Cavalcante and A. Chepurnov and K. Choi and L. Collica and D. D'Angelo and S. Davini and A. Derbin and A. Di Ludovico and L. Di Noto and I. Drachnev and K. Fomenko and A. Formozov and D. Franco and F. Froborg and F. Gabriele and C. Galbiati and C. Ghiano and M. Giammarchi and A. Goretti and M. Gromov and D. Guffanti and C. Hagner and T. Houdy and E. Hungerford and Aldo Ianni and Andrea Ianni and A. Jany and D. Jeschke and V. Kobychev and D. Korablev and G. Korga and D. Kryn and M. Laubenstein and E. Litvinovich and F. Lombardi and P. Lombardi and L. Ludhova and G. Lukyanchenko and L. Lukyanchenko and I. Machulin and G. Manuzio and S. Marcocci and J. Martyn and E. Meroni and M. Meyer and L. Miramonti and M. Misiaszek and V. Muratova and B. Neumair and L. Oberauer and B. Opitz and V. Orekhov and F. Ortica and M. Pallavicini and L. Papp and O. Penek and N. Pilipenko and A. Pocar and A. Porcelli and G. Ranucci and A. Razeto and A. Re and M. Redchuk and A. Romani and R. Roncin and N. Rossi and S. Schonert and D. Semenov and M. Skorokhvatov and O. Smirnov and A. Sotnikov and L. F. F. Stokes and Y. Suvorov and R. Tartaglia and G. Testera and J. Thurn and M. Toropova and E. Unzhakov and A. Vishneva and R. B. Vogelaar and F. von Feilitzsch and H. Wang and S. Weinz and M. Wojcik and M. Wurm and Z. Yokley and O. Zaimidoroga and S. Zavatarelli and K. Zuber and G. Zuzel},
journal= {arXiv preprint arXiv:1805.11125},
year = {2020}
}
Comments
5 pages, 2 figures, proceeding for TAUP 2017 XV International Conference on Topics in Astroparticle and Underground Physics