Conveners
Computing
- Artur Gottmann (KIT (Karlsruher Institut fuer Technologie KIT))
- Johannes Lange (UNI/EXP (Uni Hamburg, Institut fur Experimentalphysik))
Dynamically and opportunistically extending the compute resources of a HTC-Cluster (ATLAS-BFG)
with compute resources of a HPC-Cluster (NEMO) allows one to increase the computational capabilities
based on the demand of users and the availability of resources and as such leads to an efficient use of
resources across boundaries of clusters and disciplines. This is completely transparent,...
A file caching setup to access ATLAS data was deployed for the NEMO HPC cluster in Freiburg, using
an XRootD proxy server running in forwarding mode. This setup allows running HEP workflows without
the need to operate a large local data storage. Several performance tests were carried out to measure any
potential overhead caused by the caching setup with respect to direct, non-cached data access.
The lepton–proton collisions produced at the HERA collider represent a unique high energy physics data set. A number of years after the end of collisions, the data collected by the H1 experiment, as well as the simulated events and all software needed for reconstruction, simulation and data analysis were migrated into a preserved operational mode at DESY. A recent modernisation of the H1...
After the long shutdown preparing the CMS detector for Run 3, the tracker alignment constants, namely position, orientation, and curvature of each of the 15148 tracker modules that compose the tracking system need to be derived again with a high precision in order to ensure a good performance of the detector for physics analysis. This process constitutes a major computational challenge due to...
