Sustainability of the Merlin++ particle tracking code

Scott Rowan; Sam Tygier; Yuanfang Cai; Colin C. Venters; Richard Appleby; Roger Barlow

doi:10.1051/epjconf/201921405028

Sustainability of the Merlin++ particle tracking code

Scott Rowan, Sam Tygier, Yuanfang Cai, Colin C. Venters, Richard Appleby, Roger Barlow

Research output: Contribution to journal › Conference article

Abstract

Merlin++ is a C++ particle accelerator and particle tracking library originally developed at DESY for use in International Linear Collider (ILC) simulations. Merlin++ has more recently been adapted for High-Luminosity Large Hadron Collider (HL-LHC) collimation studies, utilizing advanced scattering physics. However, as is all too common in long-standing high-energy physics software, recent developments have focused on functional additions rather than code design and maintainability. This has resulted in usability issues for users and developers alike. The following presents recent improvements in adhering to modern software sustainability practices to address these issues. Quantifiable improvements in code complexity and maintainability are presented via appropriate test metrics and the evolution of the software architecture
is analyzed. Experiences and conclusions of applying modern sustainability methodology to longstanding scientific software are discussed.

Original language	English
Article number	05028
Number of pages	8
Journal	EPJ Web of Conferences
Volume	214
Early online date	17 Sep 2019
DOIs	https://doi.org/10.1051/epjconf/201921405028
Publication status	Published - 2019
Event	23rd International Conference on Computing in High Energy and Nuclear Physics - National Palace of Culture, Sofia, Bulgaria Duration: 9 Jul 2018 → 13 Jul 2018 http://chep2018.org

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10.1051/epjconf/201921405028Licence: CC BY

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Rowan, S., Tygier, S., Cai, Y., Venters, C. C., Appleby, R., & Barlow, R. (2019). Sustainability of the Merlin++ particle tracking code. EPJ Web of Conferences, 214, [05028]. https://doi.org/10.1051/epjconf/201921405028

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abstract = "Merlin++ is a C++ particle accelerator and particle tracking library originally developed at DESY for use in International Linear Collider (ILC) simulations. Merlin++ has more recently been adapted for High-Luminosity Large Hadron Collider (HL-LHC) collimation studies, utilizing advanced scattering physics. However, as is all too common in long-standing high-energy physics software, recent developments have focused on functional additions rather than code design and maintainability. This has resulted in usability issues for users and developers alike. The following presents recent improvements in adhering to modern software sustainability practices to address these issues. Quantifiable improvements in code complexity and maintainability are presented via appropriate test metrics and the evolution of the software architectureis analyzed. Experiences and conclusions of applying modern sustainability methodology to longstanding scientific software are discussed.",

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AB - Merlin++ is a C++ particle accelerator and particle tracking library originally developed at DESY for use in International Linear Collider (ILC) simulations. Merlin++ has more recently been adapted for High-Luminosity Large Hadron Collider (HL-LHC) collimation studies, utilizing advanced scattering physics. However, as is all too common in long-standing high-energy physics software, recent developments have focused on functional additions rather than code design and maintainability. This has resulted in usability issues for users and developers alike. The following presents recent improvements in adhering to modern software sustainability practices to address these issues. Quantifiable improvements in code complexity and maintainability are presented via appropriate test metrics and the evolution of the software architectureis analyzed. Experiences and conclusions of applying modern sustainability methodology to longstanding scientific software are discussed.

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