Research interests

My research concerns the design, development, and analysis of high performance parallel numerical algorithms.

My recent work has particularly focused on accelerating linear algebra computations by harnessing numerical approximations, such as low-rank compression, mixed precision algorithms, and randomization.

Please refer to my publications and talks pages for a list of my recent research activities.

Projects

Current projects

• MUMPS
• NumPEx
• InterFLOP

Past projects

• SEISCOPE
• ICONIC
• STRUMPACK
• MAGMA

Students

• Hugo Dorfsman (PhD, 2023–ongoing, with F. Jézéquel, A. Anciaux, T. Guignon): mixed precision BiCGstab solvers.
• Sébastien Dubois (PhD, 2022–ongoing, with L. Grigori, C. Content, E. Martin): BLR domain decomposition preconditioners for CFD.
• Dimitri Lesnoff (PhD, 2022–ongoing, with J. Berthomieu and S. Graillat): modular computing on GPUs for polynomial systems.
• Matthieu Robeyns (PhD, 2021–ongoing, with M. Baboulin and O. Kaya): mixed precision tensor computing.
• Roméo Molina (Master, 2021). Now PhD with F. Jézéquel.
• Matthieu Gerest (PhD, 2020–2023, with F. Jézéquel, O. Boiteau, and Mumps Tech).
• Bastien Vieublé (PhD, 2019–2022, with A. Buttari). Now at Univ. of Manchester.
• Atef Dorai (Master, 2021).