Author name: susana

New paper available at AIP Publishing, Physics of Fluids 38, 088104 (2026): Generalized Onsager-regularized lattice Boltzmann framework by Anirudh Jonnalagadda et al. https://doi.org/10.1063/5.0327546 Abstract: This work presents a novel strategy to address Navier–Stokes modeling errors arising in first-nearest neighbor lattice Boltzmann methods and introduces fully local corrections through Onsager-regularized (OReg) non-equilibrium populations. The proposed mechanism, which admits partially and completely corrected OReg models, is used to develop representative partially and completely corrected models for the six-moment-constrained guided equilibrium (GEq) representation on the D2Q9 lattice. The former realization only addresses compatibility condition violations and improves the accuracy by two/four orders of magnitude at reference/arbitrary lattice temperatures, respectively, while the latter additionally corrects stress tensor modeling errors, resulting in a fully corrected exact model. Numerical benchmarks of the corrected schemes demonstrate improved accuracy and stability in comparison to the lattice-BGK, regularized, and uncorrected OReg-GEq schemes, thus presenting a promising avenue for OReg based thermohydrodynamic extensions.

Are you interested in scientific software, HPC, and reproducible computing environments? Join us in Dublin for an exciting EESSI Hackathon on Friday, 25 September 2026, from 09:00 to 17:30 local time (IST, UTC+1). Taking place immediately after the EuroHPC User Days, held in Dublin from 22 to 24 September, the hackathon will offer a great opportunity to get hands-on with EESSI, exchange expertise, tackle challenges, and collaborate with fellow members of the HPC community. Whether you are already using EESSI or are keen to discover how it can simplify the deployment and sharing of scientific software across diverse computing environments, this is a great opportunity to learn, experiment, and contribute to the EESSI ecosystem. Don’t miss this opportunity to connect with the EESSI community and take your HPC software workflows to the next level! Provided by EuroHPC CoE MultiXscale in collaboration with the EuroHPC Federation Platform. Further information and registration available here.

Our MultiXscale expert Matteo Zanfrognini (Leonardo) will present “Corporate Development of a gpu-native lattice Boltzmann solver for turbulent flows simulations” in the framework of HPCSIM26 – Frontiers of High-Performance & Cloud Computing in Modeling and Simulation, on 17 September at 9h40, in Bologna (Italy). Further details available here.

The talk “Shared-memory parallelism and performance portability in the ESPResSo package for particle- and lattice-based simulations”, given by MultiXscale expert Jean-Noël Grad at deRSE26 Conference is already available online through this link.

On Friday 25 September 2026 (09:30-16:30 local time, UTC+1), an EESSI hackathon will be organised in the wake of the EuroHPC User Days which takes place 22-24 September 2026 in Dublin. Provided by EuroHPC CoE MultiXscale in collaboration with the EuroHPC Federation Platform The hackathon will be general in nature, but centred primarily on the needs of in-person participants. A detailed program will be added after initial registrations have taken place and discussions with those registrants. An expected general outline of the program is: More information available here

The recording of the talk and slides presentation given by MultiXscale expert Alan O’Cais (Ghent University) on 17th June 2026, in the framework of the event HPC Knowledge Portal annual meeting – HPCKP26 Barcelona, are already available on the website through this link. HPC Knowledge Portal annual meeting is a key global event for High-Performance Computing able to attract relevant professionals and main developers of leading software projects widely used by the HPC community. Abstract: The EuroHPC Federation Platform (EFP) serves as a secure “one-stop shop” designed to harmonize access to European supercomputing, AI, and quantum computing infrastructure. Driven by the EuroHPC Joint Undertaking, the EFP streamlines user onboarding and unifies fragmented cross-site workflows through centralized services like single sign-on (SSO), federated resource allocation, and interactive web tools. This talk introduces the architecture and core components of the EFP, with a dedicated deep dive into its Federated Software Catalog (FSC). Built upon the European Environment for Scientific Software Installations (EESSI), the FSC addresses hardware heterogeneity by serving a pseudo-uniform, highly optimized stack of scientific software, applications, and libraries natively across all federated supercomputers. Attendees will learn how the EFP and EESSI alleviate user friction during cross-system migration, explore the current status of supported CPU/GPU architectures, and view a demonstration of software and workflow portability in action.

We’re excited to share that Issue 7 of the MultiXscale Newsletter has been published and is now available on our website. In this edition, you’ll find the latest project updates, recent achievements, upcoming activities, and insights. Read the document on our website here, and stay up to date with the project’s progress, subscribe!

Last Wednesday, MultiXscale expert El Hassane Lahrar presented the talk: “Toward Efficient and Accurate Simulations of Porous Carbon-Based Energy Storage Systems”, during the 9th edition of the International Symposium on Enhanced Electrochemical Capacitors (ISEECap 2026), organized from 6 to 9 July 2026 in Poznan University of Technology (Poland). Held every two years, ISEECap serves as an international forum for advances in electrochemical capacitors and related devices, with a strong emphasis on bridging fundamental research and practical technological applications. More information available here.

MultiXscale and the ICP Stuttgart invite you to the 2026 ESPResSo summer school “Studying dynamics in soft matter and porous materials”, taking place on October 5-9, 2026 in Stuttgart, Germany. Attendance is free of charge. The call for poster abstracts is open until September 25, 2026. More information available here

MultiXscale CoE will be actively contributing to EuroHPC User Days 2026, taking place from 22–24 September 2026 in Dublin (Ireland) bringing together the European HPC community. As part of the event programme, MultiXscale experts will participate in an interactive session, deliver a hands-on showcase of EESSI, organize a parallel session about Chemistry and Material Sciences and present a poster. The interactive session will provide an opportunity for participants to engage directly with MultiXscale experts, explore the challenges and opportunities in scaling HPC workflows, and discuss approaches for improving access to advanced computing environments. Through open discussions and practical examples, attendees will gain insights into how modern HPC software ecosystems can support researchers and communities across Europe. The parallel session: Chemistry and Material Sciences will take place on Wednesday, 23 September from 14h to 15h30. Join us at EuroHPC User Days 2026 to discover how MultiXscale and EESSI are helping shape the future of HPC.