On Dec 12, 2025, The POP CoE represented by Marta Garcia-Gasulla (BSC) took part in the Castiel2 Code of the Month Workshop Series by presenting the BSC performance tools and their role in POP3 services.

In the presentation, Marta explored the performance-analysis ecosystem developed at BSC, featuring the Extrae tracing framework, the Paraver visualization tool, and the TALP lightweight profiler. She introduce the core capabilities of each tool and demonstrated how, when used together, they provide deep insight into the behavior of HPC applications. Shel also discussed how this toolset supports the performance services delivered to European HPC codes within the POP3 project. These services focus on large-scale applications and aim to identify key inefficiencies and bottlenecks that hinder parallel scalability. Through real examples,she showed how POP3 assessments guide developers toward more efficient and scalable execution on modern HPC architectures.