| Preprint | |
| Report number | arXiv:2312.08199 |
| Title | Of Frames and schema evolution -- The newest features of podio |
| Author(s) | Fernandez Declara, Placido (CERN) ; Gaede, Frank (DESY) ; Ganis, Gerardo (CERN) ; Hegner, Benedikt (CERN) ; Helsens, Clement (KIT, Karlsruhe) ; Madlener, Thomas (DESY) ; Sailer, Andre (CERN) ; Stewart, Graeme A. (CERN) ; Volkl, Valentin (CERN) |
| Imprint | 2023-12-13 |
| Number of pages | 5 |
| Note | Submitted to proceedings of ACAT 2022 |
| Presented at | 21st International Workshop on Advanced Computing and Analysis Techniques in Physics Research, Bari, It, 24 - 28 Oct 2022, pp. |
| Subject category | hep-ex ; Particle Physics - Experiment |
| Abstract | The podio event data model (EDM) toolkit provides an easy way to generate a performant implementation of an EDM from a high level description in yaml format. We present the most recent developments in podio, most importantly the inclusion of a schema evolution mechanism for generated EDMs as well as the "Frame", a thread safe, generalized event data container. For the former we discuss some of the technical aspects in relation with supporting different I/O backends and leveraging potentially existing schema evolution mechanisms provided by them. Regarding the Frame we introduce the basic concept and highlight some of the functionality as well as important aspects of its implementation. The usage of podio for generating different EDMs for future collider projects (most importantly EDM4hep, the common EDM for the Key4hep project) has inspired new features. We present some of those smaller new features and end with a brief overview on current developments towards a first stable version as well as an outlook on future developments beyond that. |
| Other source | Inspire |
| Copyright/License | preprint: (License: CC BY 4.0) |
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