| Issue |
EPJ Web Conf.
Volume 251, 2021
25th International Conference on Computing in High Energy and Nuclear Physics (CHEP 2021)
|
|
|---|---|---|
| Article Number | 03056 | |
| Number of page(s) | 7 | |
| Section | Offline Computing | |
| DOI | https://doi.org/10.1051/epjconf/202125103056 | |
| Published online | 23 August 2021 | |
https://doi.org/10.1051/epjconf/202125103056
Building HEP Software with Spack: Experiences from Pilot Builds for Key4hep and Outlook for LCG Releases
1 CERN, Geneva, Switzerland
2 DESY, Hamburg, Germany
3 IHEP, Beijing, China
4 Bitquant Digital Services, Hong Kong
5 IHEP/NRC Kurchatov
Published online: 23 August 2021
Consistent, efficient software builds and deployments are a common concern for all HEP experiments. This paper describes the evolution of the usage of the Spack package manager in HEP in the context of the LCG stacks and the current Spack-based management of Key4hep software. Whereas previously Key4hep software used Spack only for a thin layer of FCC experiment software on top of the LCG releases, it is now possible to build the complete stack, from system libraries to FCC-, iLCSoft- and CEPC software packages with Spack. This pilot build doubles as a prototype for a Spack-based LCG release. The workflows and mechanisms that can be used for this purpose, potential for improvement as well as the roadmap towards a complete LCG release in spack are discussed.
© The Authors, published by EDP Sciences, 2021
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.