Publications

Article

Brugnoli, Andrea and Haine, Ghislain and Serhani, Anass and Vasseur, Xavier. Numerical Approximation of Port-Hamiltonian Systems for Hyperbolic or Parabolic PDEs with Boundary Control. (2021) Journal of Applied Mathematics and Physics, 09 (06). 1278-1321. ISSN 2327-4352

Calandra, Henri and Gratton, Serge and Riccietti, Elisa and Vasseur, Xavier. On High-Order Multilevel Optimization Strategies. (2021) SIAM Journal on Optimization, 31 (1). 307-330. ISSN 1052-6234

Calandra, Henri and Gratton, Serge and Riccietti, Elisa and Vasseur, Xavier. On Iterative Solution of the Extended Normal Equations. (2020) SIAM Journal on Matrix Analysis and Applications, 41 (4). 1571-1589. ISSN 0895-4798

Calandra, Henri and Gratton, Serge and Riccietti, Elisa and Vasseur, Xavier. On a multilevel Levenberg–Marquardt method for the training of artificial neural networks and its application to the solution of partial differential equations. (2020) Optimization Methods and Software. 1-26. ISSN 1055-6788

Guillet, Oliver and Weaver, Anthony and Vasseur, Xavier and Michel, Yann and Gratton, Serge and Gurol, Selime. Modelling spatially correlated observation errors in variational data assimilation using a diffusion operator on an unstructured mesh. (2019) Quarterly Journal of the Royal Meteorological Society, 145 (722). 1947-1967. ISSN 0035-9009

Fisher, Matthew C. and Gratton, Serge and Gurol, Selime and Trémolet, Y. and Vasseur, Xavier. Low rank updates in preconditioning the saddle point systems arising from data assimilation problems. (2018) Optimization Methods and Software, 33 (1). 45-69. ISSN 1055-6788

Lunet, Thibaut and Bodart, Julien and Gratton, Serge and Vasseur, Xavier. Time-parallel simulation of the decay of homogeneous turbulence using Parareal with spatial coarsening. (2018) Computing and Visualization in Science. 1-14. ISSN 1432-9360

Mercier, Sylvain and Gratton, Serge and Tardieu, Nicolas and Vasseur, Xavier. A new preconditioner update strategy for the solution of sequences of linear systems in structural mechanics: application to saddle point problems in elasticity. (2017) Computational Mechanics, 60 (6). 969-982. ISSN 0178-7675

Vanharen, Julien and Puigt, Guillaume and Vasseur, Xavier and Boussuge, Jean-François and Sagaut, Pierre. Revisiting the spectral analysis for high-order spectral discontinuous methods. (2017) Journal of Computational Physics, 337. 379-402. ISSN 0021-9991

Gratton, Serge and Hénon, Pascal and Jiránek, Pavel and Vasseur, Xavier. Reducing complexity of algebraic multigrid by aggregation. (2016) Numerical Linear Algebra with Applications, 23 (3). 501-518. ISSN 1070-5325

Diouane, Youssef and Gratton, Serge and Vasseur, Xavier and Vicente, Luis Nunes and Calandra, Henri. A Parallel Evolution Strategy for an Earth Imaging Problem in Geophysics. (2016) Optimization and Engineering, 17 (1). 3-26. ISSN 1389-4420

Gratton, Serge and Mercier, Sylvain and Tardieu, Nicolas and Vasseur, Xavier. Limited memory preconditioners for symmetric indefinite problems with application to structural mechanics. (2016) Numerical Linear Algebra with Applications, 23 (5). 865-887. ISSN 1070-5325

Ramillien, Guillaume and Frappart, Frank and Gratton, Serge and Vasseur, Xavier. Sequential estimation of surface water mass changes from daily satellite gravimetry data. (2015) Journal of Geodesy, 89 (3). 259-282. ISSN 0949-7714

Conference or Workshop Item

Bodart, Julien and Gratton, Serge and Vasseur, Xavier and Lunet, Thibaut. Stable time-parallel integration of advection dominated problems using Parareal with space coarsening. (2018) In: 7th Workshop on Parallel-in-Time Integration, 2 May 2018 - 5 May 2018 (Roscoff, France).

Lunet, Thibaut and Bodart, Julien and Gratton, Serge and Vasseur, Xavier. Understanding the effects of grid coarsening in space within the Parareal algorithm. (2018) In: 25th International Domain Decomposition Conference (DDXXV), 23 July 2018 - 27 July 2018 (St John, Canada). (Unpublished)

Mercier, Sylvain and Gratton, Serge and Tardieu, Nicolas and Vasseur, Xavier. Limited memory preconditioners for nonsymmetric systems. (2017) In: 13ème Colloque National en Calcul des Structures (CSMA 2017), 15 May 2017 - 19 May 2017 (Giens, France).

Diouane, Youssef and Calandra, Henri and Gratton, Serge and Vasseur, Xavier. A Parallel Evolution Strategy for Acoustic Full-Waveform Inversion. (2014) In: EAGE Workshop on High Performance Computing for Upstream, 7 September 2014 - 10 September 2014 (Chania, Greece).

Invited Conference

Calandra, Henri and Diouane, Youssef and Gratton, Serge and Vasseur, Xavier. A Massively Parallel Method for the Full Waveform Inversion in Geophysics: Current Status and Perspectives. (2017) In: PASC'17 (Platform for Advanced Scientific Computing), 26 June 2017 - 28 June 2017 (Lugano, Switzerland). (Unpublished)

Other Conference

Vasseur, Xavier. Map/Reduce operations for scientific computing in Julia. (2019) In: Journée autour du langage Julia (Groupe Calcul CNRS), 31 January 2019 - 31 January 2019 (Lyon, France). (Unpublished)

Vasseur, Xavier. Deterministic algorithms for the low rank approximation of matrices. (2017) In: Action Nationale de Formation CNRS: Réduction de la dimension dans la fouille de données massives : enjeux, méthodes et outils pour le calcul, 25 September 2017 - 29 September 2017 (Ile d'Oléron, France). (Unpublished)

Book Section

Calandra, Henri and Gratton, Serge and Vasseur, Xavier. A Geometric Multigrid Preconditioner for the Solution of the Helmholtz Equation in Three-Dimensional Heterogeneous Media on Massively Parallel Computers. (2017) In: Modern Solvers for Helmholtz Problems. (Geosystems Mathematics). Springer International Publishing, 141-155. ISBN 978-3-319-28831-4

HDR

Vasseur, Xavier. Contribution to the study of efficient iterative methods for the numerical solution of partial differential equations. (2016) [HDR]