This 2 day workshop on HPC featured scientific presentations from French and Brazilian teams, introductions of ongoing projects, and panels to discuss industrial and international cooperation. The main themes were AI and HPC, HPC software, HPC and cloud, scientific computing and software engineering for HPC. The workshop had a record number of 182 registrations (65 presential) and was followed on Youtube in streaming mode, with 247 connexions on day 1 and 137 connexions on day 2.
Here follows the full program and slides made available using the creative commons licence cc-by-sa.
Organization committee
LNCC: Antônio Tadeu Gomes, Anmily Martins, Frédéric Valentin
Inria: Valeria Loscri, Claire Saint-Léger, Patrick Valduriez
Local arrangements
LNCC: Grazielle Da Costa, Tathiana Figueiredo, Camilla Tilio
Program
Wednesday 15 April 2026
BR time / FR time
08:00-08:30 / 13:00-13:30 Onsite registration (LNCC)
08:30-09:00 / 13:30-14:00 Introduction
Fabio Borges (Director of LNCC)
Eric Tallon (Consul General, French Consulate in Rio de Janeiro)
Cécile Vigouroux (Director of International Relations, Inria)
Patrick Valduriez (Scientific Director of Inria Brasil, Inria)
Frédéric Valentin (Scientific Director of Inria Brasil, LNCC)
09:00-09:30 / 14:00-14:30 Keynote session
Jean-Yves Berthou, Deputy CEO at Inria and Co-Director of the NumPex program: “Some Post-exascale Perspectives”
09:30-10:50 / 14:30-15:50 Session: AI and HPC
Alvaro Coutinho, Universidade Federal do Rio de Janeiro (UFRJ): “Towards Fast GNN Surrogates for CO2 Migration in Complex Geological Formations”
Laércio Lima Pilla, Topal team, Inria at University of Bordeaux: “Multi-objective Scheduling Solutions for Federated Learning Training”
Bruno Raffin, DataMove team, Inria at University Grenoble Alpes : “On-line Training of Deep PDE Surrogates”
Jose Hugo Gaspar Elsas, LNCC: “Leveraging Software Heritage Mirror for Science and AI: Computational and Architectural Challenges”
10:50-11:20 / 15:50-16:20 Break (poster session)
11:20-12h40 / 16:20-17:40 Session: HPC Software
Christian Perez, Avalon team, Inria Lyon: “From Dynamic Data-Parallel Dataflows to Task Graphs”
Francieli Zanon-Boito, Tadaam team, Inria at University of Bordeaux: “Transparent I/O Tuning for HPC Applications”
Lionel Eyraud-Dubois, Topal team, Inria at University of Bordeaux, “Techniques for Memory-efficient Training of Deep Neural Networks”
Emmanuelle Saillard, Storm team, Inria at University of Bordeaux: “Verification of HPC applications: leveraging LLMs and machine learning for MPI debugging”
12:40-14:00 / 17:40-19:00 Lunch
14:00-14:30 / 19:00-19:30 Keynote session
Alfredo Goldman, Universidade de São Paulo (USP) : “Scheduling Heuristics to Reduce the Environmental Impact of HPC”
14:30-15:10 / 19:30-20:10 Session: Machine Learning and HPC
Philippe Navaux, Universidade Federal do Rio Grande do Sul (UFRGS): “Predicting Diabetic Retinopathy Cases using Artificial Intelligence”
Miguel Elias M. Campista, Universidade Federal do Rio de Janeiro (UFRJ): “AVADiP: Distributed Learning and Privacy Preserving for Vehicular Applications”
15:10-15:50 / 20:10-20:50 Session: Energy-aware Optimization
Carla Osthoff, LNCC: “Energy-Efficient Job Submission on Supercomputers via Energy-Delay Product Prediction”
Arthur F. Lorenzon, Universidade Federal do Rio Grande do Sul (UFRGS): “Towards Green HPC via Energy-Aware GPU Optimization”
15:50-16:15 / 20:50-21:15 Break (poster session)
16:15-17:15 / 21:15-22:15 Panel: Collaborations with companies in HPC
Moderator: Antônio Tadeu Gomes
Panelists: Luis Casuscelli (Bull), Renato Cerqueira (PUC-Rio), Leandro Rosa dos Santos (Positivo), Pedro Mario Silva (Nvidia)
Thursday 16 April 2026
09:00-09:30 / 14:00-14:30 Keynote session
Raymond Namyst, Storm team, Inria at Université de Bordeaux: “The French Program Agency for Digital Science and Technology: a structuring tool for research and innovation”
09:30-10:30 / 14:30-15:30 Session: HPC and Cloud
Lúcia Maria de Assumpção Drummond, Universidade Federal Fluminense (UFF): “High Performance Computing in Clouds: Challenges and Solutions”
Carlos J. Barrios Hernandez, DataMove team, Inria at University Grenoble Alpes: “Energy-Aware Enhanced Computing Continuum”
Gabriel Antoniu, KerData team, Inria at University of Rennes: “Challenges for Building the Edge-Cloud-HPC Data Continuum: the InPEx perspective”
10:30-11:00 / 15:30-16:00 Break (poster session)
11:00-11:40 / 16:00-16:40 Session: Scientific Computing
Luc Giraud, Concace team, Inria at University of Bordeaux: “On Numerical Linear Algebra Algorithms with Variable Accuracy Storage”
Emmanuel Jeannot, Tadaam team, Inria at University of Bordeaux: “Simplifying Scientific Data Management and Model Computation with UMRS”
11:40-12:10 / 16:40-17:10 Keynote session
Renato Cerqueira, PUC-Rio: “Toward Epistemic & Governable AI for Scientific Discovery”
12:10-13:30 / 17:10-18:30 Lunch
13:30 -> 14:30 / 18:30 -> 19:30 Session: Software Engineering for HPC
Benoit Combemale, DiverSE team, Inria at University of Rennes: “Software Engineering for Scientific Computing”
Lucas Mello Schnorr, Universidade Federal do Rio Grande do Sul (UFRGS), François Trahay, Benagil team, Inria Saclay: “VISTA – Visualization and Analysis of Large-Scale Execution Traces”
Samuel Xavier de Souza, Universidade Federal do Rio Grande do Norte (UFRN): “Taming the Exascale Software Development Beast with Parallel-scalability Profiling and Visualization Tools”
14:30 -> 15:30 / 18:30 -> 19:30 Panel: Future of Brazil-France Cooperation in HPC
Moderator: Patrick Valduriez (Inria)
Participants: Jean-Yves Berthou (Inria), Vincent Brignol (French Embassy), Claire Saint-Léger (Inria), Pablo Javier Blanco (LNCC), Fernando Rochinha (UFRJ)