Ph.D. position on porting reactive multiphysics CFD simulations to GPUs for exascale high-performance computing

Application Deadline: 15 Nov 2026 - 00:00 (Europe/Paris) Country: France Type of Contract: Temporary Job Status: Full-time Is the job funded through the EU Research Framework Programme? Horizon Europe (other) Reference Number: 43108390 Is the Job related to staff position within a Research Infrastructure? No Offer Description General Information Laboratory: CORIA (CNRS – INSA Rouen Normandie – University of Rouen Normandie) Employer: INSA Rouen Normandie Project: CoEC4ET – Center of Excellence in Combustion for the Energy Transition Duration: 36 months Start Date: Early 2027 Advisors: Vincent Moureau, Kévin Bioche Keywords: Reactive flows, GPU, Exascale, HPC, YALES2, OpenMP Description of the Thesis Topic Context: This thesis is part of the European CoEC4ET project, a European center of excellence aimed at developing exascale simulation technologies for combustion and contributing to the energy transition. It focuses on the development of methods enabling high-performance reactive multiphysics simulations on GPU architectures. Objectives: Develop YALES2’s reactive multiphysics simulation capabilities on CPU-GPU architectures by integrating ChemInt (BSC) for chemistry, CWIPI (ONERA) for multiphysics coupling, and a Python/PyTorch interface. This work will include the reduction of chemical mechanisms through clustering, in collaboration with the BSC, as well as the structuring, documentation, and profiling of software interfaces. Expected results: New frameworks for reactive computations on GPUs, portable exascale software components and validations on European supercomputers. These activities will result in international scientific publications. Work Context The Ph.D. student will join CORIA’s YALES2 team ( https://pages.coria-cfd.fr/yales2public/yales2public/ ) as part of the EuroHPC CoEC4ET project, collaborating closely with BSC, ONERA, CERFACS, and several European partners. Where to apply E-mail: kevin.bioche@coria.fr Requirements Research Field: Physics » Computational physics Education Level: Master Degree or equivalent Skills/Qualifications Core competencies: HPC, computational fluid dynamics, numerical methods, computational chemistry. Technical skills: Fortran/C++, MPI, OpenMP, GPU (OpenMP Target/OpenACC/HIP/CUDA), Python. Degree: Master’s degree or engineering degree in computational fluid dynamics, applied mathematics, computational science, or HPC. Specific Requirements Occasional travel to partner sites (BSC, ONERA, CERFACS), participation in CoEC4ET meetings, EuroHPC schools, and international conferences. Languages: ENGLISH Level: Good Additional Information Benefits Baseline CNRS salary Selection process Send a resume and motivation letter to kevin.bioche@coria.fr and vincent.moureau@coria.fr Followed by one or two interviews with the research team Work Location(s) Number of offers available: 1 Company/Institute: INSA Rouen Normandie Country: France City: Saint Etienne du Rouvray Postal Code: 76800 Street: 685 Av. de l'Université Contact City: Saint Etienne du Rouvray Website: https://www.insa-rouen.fr/ http://www.coria.fr