TY  - CONF
AU  - Carceller, Juan Miguel
AU  - Fang, Wenxing
AU  - Fila, Mateusz
AU  - Francois, Brieuc
AU  - Gaede, Frank-Dieter
AU  - Ganis, Gerardo
AU  - Hegner, Benedikt
AU  - Huang, Xingtao
AU  - Ko, Sang Hyun
AU  - Li, Weidong
AU  - Li, Teng
AU  - Lin, Tao
AU  - Madlener, Thomas
AU  - Reichenbach, Leonhard
AU  - Sailer, André
AU  - Sasikumar, Swathi
AU  - Smiesko, Juraj
AU  - Stewart, Graeme A
AU  - Tolosa-Delgado, Álvaro
AU  - Zhang, Xiaomei
AU  - Zou, Jiaheng
TI  - Reconstruction in Key4hep using Gaudi
JO  - The European physical journal / Web of Conferences
VL  - 337
SN  - 2100-014X
CY  - Les Ulis
PB  - EDP Sciences
M1  - PUBDB-2025-05600
SP  - 01145 -
PY  - 2025
AB  - Key4hep, a software framework and stack for future accelerators, integrates all the steps in the typical offline pipeline: generation, simulation, reconstruction and analysis. The different components of Key4hep use a common event data model, called EDM4hep. For reconstruction, Key4hep leverages Gaudi, a proven framework already in use by several experiments at the LHC, to orchestrate configuration and execution of reconstruction algorithms.In this contribution, a brief overview of Gaudi is given. The specific developments built to make Gaudi work seamlessly with EDM4hep (and thereforein Key4hep) are explained, as well as other improvements requested by the Key4hep community. The list of developments includes a new I/O service to run algorithms that read or write EDM4hep files in multithreading in a threadsafe way and a possibility to easily switch the EDM4hep I/O to the new ROOT RNTuple format for reading or writing. We show that both native (algorithms that use EDM4hep as input and output) and non-native algorithms from the ILC community can run together in Key4hep, picking up on knowledge and software developed over many years. A few examples of algorithms that have been created or ported to Key4hep recently are given, featuring the usage of Key4hep-specific features.
T2  - 27th International Conference on Computing in High Energy and Nuclear Physics (CHEP 2024)
CY  - 19 Oct 2024 - 25 Oct 2024, Krakow (Poland)
Y2  - 19 Oct 2024 - 25 Oct 2024
M2  - Krakow, Poland
LB  - PUB:(DE-HGF)16 ; PUB:(DE-HGF)8
DO  - DOI:10.1051/epjconf/202533701145
UR  - https://bib-pubdb1.desy.de/record/642751
ER  -