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@INPROCEEDINGS{Ding:890238,
      author       = {Ding, X. F. and Vishneva, A. and Penek, Ömer and Marcocci,
                      S. and {Borexino Collaboration}},
      title        = {{S}peeding up complex multivariate data analysis in
                      {B}orexino with parallel computing based on {G}raphics
                      {P}rocessing {U}nit},
      journal      = {Journal of physics / Conference Series},
      volume       = {1342},
      number       = {1},
      issn         = {1742-6588},
      address      = {Bristol},
      publisher    = {IOP Publ.87703},
      reportid     = {FZJ-2021-00825},
      pages        = {012115},
      year         = {2020},
      note         = {5 pages, 2 figures, proceeding for TAUP 2017 XV
                      International Conference on Topics in Astroparticle and
                      Underground Physics},
      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 11C
                      and external γs. 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.},
      month         = {Jul},
      date          = {2017-07-24},
      organization  = {15th International Conference on
                       Topics in Astroparticle and Underground
                       Physics, Sudbury (Canada), 24 Jul 2017
                       - 28 Jul 2017},
      keywords     = {neutrino: solar (INSPIRE) / Borexino (INSPIRE) / spectral
                      (INSPIRE) / graphics (INSPIRE) / pile-up (INSPIRE)},
      cin          = {IKP-2},
      ddc          = {530},
      cid          = {I:(DE-Juel1)IKP-2-20111104},
      pnm          = {612 - Cosmic Matter in the Laboratory (POF3-612)},
      pid          = {G:(DE-HGF)POF3-612},
      typ          = {PUB:(DE-HGF)16 / PUB:(DE-HGF)8},
      eprint       = {1805.11125},
      howpublished = {arXiv:1805.11125},
      archivePrefix = {arXiv},
      SLACcitation = {$\%\%CITATION$ = $arXiv:1805.11125;\%\%$},
      UT           = {WOS:001432953400115},
      doi          = {10.1088/1742-6596/1342/1/012115},
      url          = {https://juser.fz-juelich.de/record/890238},
}