Distributed statistical inference with pyhf enabled through funcX

In High Energy Physics facilities that provide High Performance Computing environments provide an opportunity to efficiently perform the statistical inference required for analysis of data from the Large Hadron Collider, but can pose problems with orchestration and efficient scheduling. The compute...

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Main Authors: Feickert Matthew, Heinrich Lukas, Stark Giordon, Galewsky Ben
Format: Article
Language:English
Published: EDP Sciences 2021-01-01
Series:EPJ Web of Conferences
Online Access:https://www.epj-conferences.org/articles/epjconf/pdf/2021/05/epjconf_chep2021_02070.pdf
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author Feickert Matthew
Heinrich Lukas
Stark Giordon
Galewsky Ben
author_facet Feickert Matthew
Heinrich Lukas
Stark Giordon
Galewsky Ben
author_sort Feickert Matthew
collection DOAJ
description In High Energy Physics facilities that provide High Performance Computing environments provide an opportunity to efficiently perform the statistical inference required for analysis of data from the Large Hadron Collider, but can pose problems with orchestration and efficient scheduling. The compute architectures at these facilities do not easily support the Python compute model, and the configuration scheduling of batch jobs for physics often requires expertise in multiple job scheduling services. The combination of the pure-Python libraries pyhf and funcX reduces the common problem in HEP analyses of performing statistical inference with binned models, that would traditionally take multiple hours and bespoke scheduling, to an on-demand (fitting) “function as a service” that can scalably execute across workers in just a few minutes, offering reduced time to insight and inference. We demonstrate execution of a scalable workflow using funcX to simultaneously fit 125 signal hypotheses from a published ATLAS search for new physics using pyhf with a wall time of under 3 minutes. We additionally show performance comparisons for other physics analyses with openly published probability models and argue for a blueprint of fitting as a service systems at HPC centers.
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spelling doaj.art-25c5a500170c449188734ea36d11ad352022-12-21T20:00:53ZengEDP SciencesEPJ Web of Conferences2100-014X2021-01-012510207010.1051/epjconf/202125102070epjconf_chep2021_02070Distributed statistical inference with pyhf enabled through funcXFeickert Matthew0Heinrich Lukas1Stark Giordon2Galewsky Ben3University of Illinois at Urbana-ChampaignCERNUniversity of California Santa Cruz SCIPPNational Center for Supercomputing ApplicationsIn High Energy Physics facilities that provide High Performance Computing environments provide an opportunity to efficiently perform the statistical inference required for analysis of data from the Large Hadron Collider, but can pose problems with orchestration and efficient scheduling. The compute architectures at these facilities do not easily support the Python compute model, and the configuration scheduling of batch jobs for physics often requires expertise in multiple job scheduling services. The combination of the pure-Python libraries pyhf and funcX reduces the common problem in HEP analyses of performing statistical inference with binned models, that would traditionally take multiple hours and bespoke scheduling, to an on-demand (fitting) “function as a service” that can scalably execute across workers in just a few minutes, offering reduced time to insight and inference. We demonstrate execution of a scalable workflow using funcX to simultaneously fit 125 signal hypotheses from a published ATLAS search for new physics using pyhf with a wall time of under 3 minutes. We additionally show performance comparisons for other physics analyses with openly published probability models and argue for a blueprint of fitting as a service systems at HPC centers.https://www.epj-conferences.org/articles/epjconf/pdf/2021/05/epjconf_chep2021_02070.pdf
spellingShingle Feickert Matthew
Heinrich Lukas
Stark Giordon
Galewsky Ben
Distributed statistical inference with pyhf enabled through funcX
EPJ Web of Conferences
title Distributed statistical inference with pyhf enabled through funcX
title_full Distributed statistical inference with pyhf enabled through funcX
title_fullStr Distributed statistical inference with pyhf enabled through funcX
title_full_unstemmed Distributed statistical inference with pyhf enabled through funcX
title_short Distributed statistical inference with pyhf enabled through funcX
title_sort distributed statistical inference with pyhf enabled through funcx
url https://www.epj-conferences.org/articles/epjconf/pdf/2021/05/epjconf_chep2021_02070.pdf
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