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

INSA Rouen Normandie; France; On-site; EUR 23,000 - 28,000; Full time

Job summary

INSA Rouen Normandie in France invites applications for a First Stage Researcher (R1) PhD thesis within CORIA (CNRS). Start date early 2027. The project targets exascale reactive flow simulations on CPU-GPU architectures, integrating Chemistry and multiphysics coupling, with a Python/PyTorch interface.

Travel to partner sites is possible, and the successful candidate will contribute to software development, documentation, and publications in European HPC contexts.

Job description

Organisation/Company INSA Rouen Normandie Research Field Physics Computer science Researcher Profile First Stage Researcher (R1) Positions PhD Positions 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

GeneralInformation

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’sreactive multiphysics simulation capabilities on CPU-GPU architectures by integratingChemInt (BSC) forchemistry, CWIPI (ONERA) for multiphysicscoupling, and aPython/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:

NewframeworksforreactivecomputationsonGPUs,portableexascalesoftwarecomponents andvalidationsonEuropeansupercomputers.Theseactivitieswillresultininternationalscientificpublications.

Specific Requirements

Occasionaltraveltopartnersites (BSC,ONERA,CERFACS),participationinCoEC4ETmeetings,EuroHPCschools,andinternationalconferences.