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Automatic data processing for Baikal-GVD neutrino observatory

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arxiv 2107.13939 v1 pith:CY472NJA submitted 2021-07-29 astro-ph.IM physics.ins-det

V. A. Allakhverdyan , A. D. Avrorin , A. V. Avrorin , V. M. Aynutdinov , R. Bannasch , Z. Bardačová , I. A. Belolaptikov , I. V. Borina
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V. B. Brudanin N. M. Budnev V. Y. Dik G. V. Domogatsky A. A. Doroshenko R. Dvornický A. N. Dyachok Zh.-A. M. Dzhilkibaev E. Eckerová T. V. Elzhov L. Fajt S. V. Fialkovski A. R. Gafarov K. V. Golubkov N. S. Gorshkov T. I. Gress M. S. Katulin K. G. Kebkal O. G. Kebkal E. V. Khramov M. M. Kolbin K. V. Konischev K. A. Kopański A. V. Korobchenko A. P. Koshechkin V. A. Kozhin M. V. Kruglov M. K. Kryukov V. F. Kulepov Pa. Malecki Y. M. Malyshkin M. B. Milenin R. R. Mirgazov D. V. Naumov V. Nazari W. Noga D. P. Petukhov E. N. Pliskovsky M. I. Rozanov V. D. Rushay E. V. Ryabov G. B. Safronov B. A. Shaybonov M. D. Shelepov F. Šimkovic A. E. Sirenko A. V. Skurikhin A. G. Solovjev M. N. Sorokovikov I. Štekl A. P. Stromakov E. O. Sushenok O. V. Suvorova V. A. Tabolenko B. A. Tarashansky Y. V. Yablokova S. A. Yakovlev D. N. Zaborov (for the Baikal-GVD Collaboration)
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classification astro-ph.IMphysics.ins-det
keywords dataprocessingautomaticbaikalbaikal-gvdeventsexecutionneutrino
verification ladder T0 review T1 audit T2 compute T3 formal
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Baikal-GVD is a gigaton-scale neutrino observatory under construction in Lake Baikal. It currently produces about 100 GB of data every day. For their automatic processing, the Baikal Analysis and Reconstruction software (BARS) was developed. At the moment, it includes such stages as hit extraction from PMT waveforms, assembling events from raw data, assigning timestamps to events, determining the position of the optical modules using an acoustic positioning system, data quality monitoring, muon track and cascade reconstruction, as well as the alert signal generation. These stages are implemented as C++ programs which are executed sequentially one after another and can be represented as a directed acyclic graph. The most resource-consuming programs run in parallel to speed up processing. A separate Python package based on the luigi package is responsible for program execution control. Additional information such as the program execution status and run metadata are saved into a central database and then displayed on the dashboard. Results can be obtained several hours after the run completion.

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