| Issue |
EPJ Web Conf.
Volume 337, 2025
27th International Conference on Computing in High Energy and Nuclear Physics (CHEP 2024)
|
|
|---|---|---|
| Article Number | 01146 | |
| Number of page(s) | 7 | |
| DOI | https://doi.org/10.1051/epjconf/202533701146 | |
| Published online | 07 October 2025 | |
https://doi.org/10.1051/epjconf/202533701146
Building the Key4hep Software Stack with Spack
1 CERN, Geneva, Switzerland
2 University of Manitoba, Winnipeg, Manitoba, Canada
3 Deutsches Elektronen-Synchrotron DESY, Germany
* e-mail: j.m.carcell@cern.ch
Published online: 7 October 2025
The Key4hep software stack enables studies for future collider projects. It provides a full software suite for doing event generation, detector simulation as well as reconstruction and analysis. In the Key4hep stack, over 600 packages are built using the Spack package manager and deployed via the cvmfs software distribution system. In this contribution, we explain the current setup for building nightly builds and stable releases that are made every few months or as needed. These builds are made available to users, who have access to a full and consistent software stack via a simple setup script. Different operating systems and compilers are supported and some utilities are provided to make development on top of the Key4hep builds easier. Both the benefits of the community-driven approach followed in Spack and the issues found along the way are discussed.
© The Authors, published by EDP Sciences, 2025
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.
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