ESiWACE3 organized its 4th General Assembly online from 25 to 27 October 2025, marking another important milestone in the project’s development.
The Assembly brought together all consortium partners to review progress, discuss updates across all Work Packages, and share expertise in high-performance computing for weather and climate simulations. A key feature of the meeting was a workshop dedicated to the exploitation and sustainability of the project results, where all partners actively collaborated to identify strategies for maximising the impact and long-term value of ESiWACE3’s outputs.
Over the three days, participants presented several technical updates, including Jairo Segura (MPI-M) on data storage layout performance benchmarks, Loris Lucido (ATOS BULL) on the OGSTM-BFM full GPU port—a three-year project including two years of support from ESiWACE2 and 3—Niclas (DKRZ) on the release of HPCW version 3, Roc Salvador (with Xavier Yepes) on auto-profile updates, and Juniper (UH) on data compression safeguards.
In addition, the Assembly welcomed several external speakers who provided valuable perspectives relevant to the consortium’s work. Langwen Huang (ETHZ) discussed flexible and error-bounded compression for weather data, Constantine Dovrolis (NCC Cyprus) presented insights on NCC Cyprus and ESW3, Sebastian Milinski (ECMWF) shared perspectives from the Destination Earth initiative, France Boillod-Cerneux (CEA) presented the HANAMI project bridging Europe and Japan in high-performance computing, and Helen Hewitt (Met Office) provided an overview of the Coupled Model Intercomparison Project (CMIP).
The 4th General Assembly successfully highlighted the consortium’s continued collaboration and innovation, reinforcing the role of ESiWACE3 as a Centre of Excellence in advancing high-performance computing for climate and weather applications. The event closed with a look forward to the coming year, setting the stage for further technical developments and strengthened collaborations within the consortium and with external partners.
