TY - CONF AU - Guimarães, Filipe Souza Mendes AU - Sankaran, Aravind AU - Frings, Wolfgang TI - Supporting HPC Users with LLview; 1 VL - 16091 SN - 0302-9743 CY - Heidelberg PB - Springer M1 - FZJ-2025-05008 SN - 978-3-032-07611-3 (print) T2 - Lecture Notes in Computer Science SP - 40 - 51 PY - 2025 AB - Diagnosing and reporting operational issues to optimise system usage and performance is challenging on large-scale HPC systems due to their sheer complexity. At the Jülich Supercomputing Centre (JSC), we address this challenge with LLview, an open-source system and job reporting framework. LLview provides near real-time metrics for analysis through a web portal with role-based access for users, administrators, and support staff. In this paper, we present a series of use cases demonstrating how LLview enables efficient diagnosis and resolution of system and application issues, enhancing both reactive and proactive support for HPC users. T2 - 40th International Conference on High Performance Computing, ISC High Performance 2025. CY - 10 Jun 2025 - 13 Jun 2025, Hamburg (Germany) Y2 - 10 Jun 2025 - 13 Jun 2025 M2 - Hamburg, Germany LB - PUB:(DE-HGF)8 ; PUB:(DE-HGF)7 DO - DOI:10.1007/978-3-032-07612-0 UR - https://juser.fz-juelich.de/record/1048907 ER -