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T: Fachverband Teilchenphysik

T 14: Data, AI, Computing, Electronics II

T 14.3: Vortrag

Montag, 16. März 2026, 16:45–17:00, KH 02.014

Integration of NHR resources into the ATLAS computing workflow in Freiburg — •Dirk Sammel, Michael Böhler, and Markus Schumacher — Albert-Ludwigs-Universität Freiburg

At many sites of the Worldwide LHC Computing Grid (WLCG), high-performance computing (HPC) resources are already integrated (or soon will be) into the computing workflows of various experiments. The WLCG Tier-2 cluster ATLAS-BFG in Freiburg has been extended by incorporating resources from the NHR cluster HoreKa at KIT.

To integrate these computing resources into the Freiburg Tier-2 cluster in a transparent and efficient manner, a container-based approach was adopted using the meta-scheduler COBalD/TARDIS. TARDIS launches so-called drones on the HPC system, providing additional compute capacity to the Tier-2 cluster. To differentiate between these augmented resources and the WLCG resources in Freiburg, the AUDITOR accounting ecosystem is used.

This presentation provides an overview of the current status and initial experiences with integrating HPC resources into the Freiburg Tier-2 cluster ATLAS-BFG.

Keywords: WLCG; HPC; HTC; ATLAS; NHR