Since its first phase in 2015, the EU Centre of Excellence for HPC Applications on Performance Optimisation and Productivity (POP CoE) assists a broad community of HPC application developers and users in both science and industry domains helping them to understand the performance-related issues of their application codes and thus improve their efficiency and productivity. This fundamental purpose is reached by externally and objectively auditing the performance of the codes of all interested users, by providing not only qualitative but also quantitative analysis through the use of POP tools and methodology.

The current phase, POP3, is articulated in three main pillars: services, users, and co-design.  POP services mainly focus on performance assessments with the goal to evaluate code performance and scaling, identifying the main sources of inefficiency and providing some insight and recommendation about how to improve it. POP3 also provides extended second level services that include proof of concepts, energy efficiency and advisory studies. While POP3 will continue targeting all scales and types of users (incl. SMEs),  POP3 focuses on much larger scales, assessing the execution on the EuroHPC hosting sites of some of the European flagship HPC applications for other CoEs.