Guillaume SYLVAND (CONCACE)

• Numerical Linear Algebra and High Performance Computing (with on focus on applications to aerospace industry);
• Solvers for Large Linear Systems (with advanced numerical methods such as Fast Multipole Methods);
• Iterative Solvers and Preconditionners (especially for linear systems coming from finite element and boundary element methods);
• Direct Solvers for Dense, Sparse and Hierarchical Matrices (and matrices mixing sparse and dense/compressed parts).
• More recently: Quasi-Trefftz Methods for Aeroacoustics (in collaboration with Lise-Marie Imbert-Gerard mailto:lmig@math.arizona.edu and the MAKUTU Inria team in Pau)

I'm part of the Paris concace Team, located in the Airbus CRT/VPE building of Issy-Les-Moulineaux.

Airbus CRT/VPE
22 Rue du Gouverneur Général ÉBOUÉ,
Bât. Colisée EDEN - 4th Floor,
92130 Issy-Les-Moulineaux

How to get there

• mailto:guillaume.sylvand@airbus.com

• Sylvand, G. (2003). Performance of a parallel implementation of the FMM for electromagnetics applications. International journal for numerical methods in fluids, 43(8), 865-879.
• Delnevo, A., Le Saint, S., Sylvand, G., Terrasse, I. (2005). Numerical methods: Fast multipole method for shielding effects. AIAA Paper, 2971, 2005.
• Carpentieri, B., Duff, I. S., Giraud, L., Sylvand, G. (2005). Combining fast multipole techniques and an approximate inverse preconditioner for large electromagnetism calculations. SIAM Journal on Scientific Computing, 27(3), 774-792.
• G. Alléon, S. Champagneux, G. Chevalier, L. Giraud, G. Sylvand. Parallel distributed numerical simulations in aeronautic applications. Applied Mathematical Modelling, Volume 30, Issue 8, August 2006, Pages 714-730.
• Giraud, L., Langou, J., Sylvand, G. (2006). On the parallel solution of large industrial wave propagation problems. Journal of Computational Acoustics, 14(01), 83-111.
• Nolwenn Balin, Guillaume Sylvand, Fabien Casenave. 3D FEM-BEM coupled resolution for acoustic waves propagation in potential flow. Société Française d'Acoustique. Acoustics 2012, Apr 2012, Nantes, France. 2012.
• Fabien Casenave, Alexandre Ern, Guillaume Sylvand. Coupled BEM–FEM for the convected Helmholtz equation with non-uniform flow in a bounded domain. Journal of Computational Physics, Volume 257, Part A, 15 January 2014, Pages 627-644.
• Berenger Bramas, Olivier Coulaud, Guillaume Sylvand. Time-domain BEM for the wave equation on distributed-heterogeneous architectures: A blocking approach. Parallel Computing, Volume 49, November 2015, Pages 66-82.
• Lise-Marie Imbert-Gérard, Guillaume Sylvand. A roadmap for Generalized Plane Waves and their interpolation properties. Numerische Mathematik, 149 (2021) 1, 87-137. https://arxiv.org/abs/1907.08309
• Three types of quasi-Trefftz functions for the 3D convected Helmholtz equation: construction and approximation properties. Lise-Marie Imbert-Gerard and Guillaume Sylvand. https://arxiv.org/abs/2201.12993 (submitted)

• Guillaume Sylvand. Équation des Ondes en Acoustique : Accélération des Potentiels Retardés par la Méthode Multipôle Temporelle. RR-5017, INRIA. 2003.
• Guillaume Alleon, Denis Barbier, Guillaume Sylvand. A high performance 3D simulation framework for acoustics : from mesh to visualization. https://cerfacs.fr/wp-content/uploads/2017/06/alleon.pdf
• Chaigne, S., Sylvand, G., Duceau, E., Simon, J. On the use of the Fast Multipole Method for Accurate Automotive Body Panel Acoustic Load Predictions. (No. 2007-01-2313). SAE Technical Paper.
• Fabien Casenave, Alexandre Ern, Tony Lelièvre, Guillaume Sylvand. A non-intrusive method to approximate linear systems with nonlinear parameter dependence. Technical Report, July 2013. https://arxiv.org/abs/1307.4330
• Bérenger Bramas, Olivier Coulaud, Guillaume Sylvand. Time-Domain BEM for the Wave Equation on Distributed-Heterogenous Architectures : a Blocking Approach. [Research Report] RR-8604, Inria Bordeaux Sud-Ouest; INRIA. 2014.
• R. Carratalá-Sáez, M. Faverge, G. Pichon, G. Sylvand, E.S. Quintana-Ortí - Tiled Algorithms for Efficient Task-Parallel H-Matrix Solvers - Research Report RR-9327, Inria. 2020
• Emmanuel Agullo, Marek Felšöci, Guillaume Sylvand. A comparison of selected solvers for coupled FEM/BEM linear systems arising from discretization of aeroacoustic problems. RT-0513, INRIA. 2021. https://inria.hal.science/hal-03263620
• E. Agullo, M. Felšöci, A. Guermouche, H. Mathieu, G. Sylvand and B. Tagliaro. Study of the processor and memory power consumption of coupled sparse/dense solvers. Inria Bordeaux Sud-Ouest, Research Report RR-9463, 2022
• E. Agullo, M. Felšöci and G. Sylvand. Direct solution of larger coupled sparse/dense linear systems using low-rank compression on single-node multi-core machines in an industrial context. Research Report RR-9453, Inria Bordeaux Sud-Ouest. 2022, pp.25
• E. Agullo, M. Felšöci and G. Sylvand. A comparison of selected solvers for coupled FEM/BEM linear systems arising from discretization of aeroacoustic problems. Inria Bordeaux Sud-Ouest, Research Report RR-9412, 2021
• E. Agullo, M. Felšöci and G. Sylvand. A comparison of selected solvers for coupled FEM/BEM linear systems arising from discretization of aeroacoustic problems: literate and reproducible environment. Inria Bordeaux Sud-Ouest, Technical Report RT-0513, 2021

• Carpentieri, B., Duff, I., Giraud, L., Sylvand, G. Inner-outer iterations: a way to design robust linear solvers for dense linear systems in electromagnetism. In Latsis Symposium on Iterative Solvers for Large Linear Systems (pp. 18-21). 2002, February.
• Sylvand, G. (2003). Complex industrial computations in electromagnetism using the fast multipole method. In Mathematical and Numerical Aspects of Wave Propagation WAVES 2003 (pp. 657-662). Springer Berlin Heidelberg.
• Alléon, G., Carpentieri, B., Duff, I. S., Giraud, L., Martin, E., Sylvand, G. (2003, September). Efficient parallel iterative solvers for the solution of large dense linear systems arising from the boundary element method in electromagnetism. In Proceedings of the International Conference on Supercomputing in Nuclear Application (SNA).
• Bruno Carpentieri, Iain Duff, Luc Giraud, Guillaume Sylvand. An Embedded Iterative Scheme in Electromagnetism. September 2003, Parallel Processing and Applied Mathematics, 5th International Conference, PPAM 2003, Czestochowa, Poland, September 7-10, 2003.
• Carpentieri, Bruno and Duff, IainS. and Giraud, Luc and Sylvand, Guillaume. An Embedded Iterative Scheme in Electromagnetism. Parallel Processing and Applied Mathematics, pp 977-984. Lecture Notes in Computer Science, vol. 3019 (2004)
• Thain, A., Peres, G., Estienne, J. P., Sylvand, G., Cailleu, P., Benjamin, P., … & Sabanowski, G. (2007, November). Numerical modelling of aircraft antenna installations. In Antennas and Propagation, 2007. EuCAP 2007. The Second European Conference on (pp. 1-6). IET.
• F. Casenave, N. Balin, G. Sylvand. 3D Coupled resolution of acoustics waves propagation between a potential flow and a uniform flow. Waves Conference, 2011.
• B. Lizé, Guillaume Sylvand. Design, Analysis, Implementation and Deployment of a High-Performance, Out-of-Core, Parallel, Dense Direct Linear Solver. January 2011, The Second International Conference on Parallel, Distributed, Grid and Cloud Computing for Engineering.
• Fukata, S., Hayama, K., Sylvand, G., Alestra, S., Azuma, T. (2011, July). Study of jet noise source modeling and shielding effect for future aircraft. In INTER-NOISE and NOISE-CON Congress and Conference Proceedings (Vol. 2011, No. 3, pp. 3910-3915). Institute of Noise Control Engineering.
• Guillaume Sylvand. From Quasi-static to High Frequencies : An Overview of Numerical Simulation at EADS. DOI: 10.1007/978-3-642-22453-9-9 In book: Scientific Computing in Electrical Engineering SCEE 2010.
• Lize, B., Sylvand, G., Agullo, E., Thibault, S. (2013). A task-based H-matrix solver for acoustic and electromagnetic problems on multicore architectures. In SciCADE, the International Conference on Scientific Computation and Differential Equations, Valladolid, Spain.
• Kenji Hayama, Satoshi Fukata, Guillaume Sylvand, Stephane Alestra, Toshihiko Azuma. Jet Noise Source Modeling Suited to Estimate a Shielding Effect. May 2013, 19th AIAA/CEAS Aeroacoustics Conference.
• Fabien Casenave, Alexandre Ern, Tony Lelièvre, Guillaume Sylvand. Reduced basis strategies for aeroacoustics simulations. June 2013, 11th International Conference on Mathematical and Numerical Aspects of Waves (WAVES 2011).
• Bérenger Bramas, Olivier Coulaud, Guillaume Sylvand. Time-Domain BEM for the Wave Equation: Optimization and Hybrid Parallelization. Europar 2014 - August 2014, European Conference on Parallel Processing, Porto, Portugal.
• Bérenger Bramas, Olivier Coulaud, Guillaume Sylvand. New Computational Ordering to Reach High Performance in the Time-domain BEM for the Wave Equation. Sparse Days, Jun 2014, Toulouse, France. ⟨hal-01059540⟩
• Piche, Sylvand et al. BEM/MoM fast direct computation for antenna sitting and antenna coupling on large aeronautic plateforms. 2014 IEEE Conference on Antenna Measurements & Applications (CAMA), Antibes Juan-les-Pins, France, 2014, pp. 1-4, doi: 10.1109/CAMA.2014.7003376.
• P. Blanchard, B. Bramas, O. Coulaud, E. Darve, L. Dupuy, A. Etcheverry, G. Sylvand - ScalFMM: A Generic Parallel Fast Multipole Library. In Computational Science and Engineering - SIAM CSE 2015, Mar 2015, Salt Lake City, United States.
• E. Agullo, A. Falco, L. Giraud, B. Lizé, G. Sylvand - H-Matrix Solver for FEM/BEM - CIMI Workshop on Fast Direct Solvers, Jun 2015, Toulouse, France
• Agullo, E., Falco, A., Giraud, L., Lizé, B., Sylvand, G. (2015, June). H-Matrix Solver for FEM/BEM. In Workshop on Fast Direct Solvers at Computational Science and Engineering (CSE15).
• G. Sylvand (2016). Fast Methods applied to BEM Solvers for industrial problems (July 2016). In The 9th International Workshop on Parallel Matrix Algorithms and Applications (PMAA16).
• Nolwenn Balin, Guillaume Sylvand, Jerome Robert. Fast Methods applied to BEM Solvers for Acoustic Propagation Problems. May 2016. 22nd AIAA/CEAS Aeroacoustics Conference
• Piche, Sylvand et al. BEM/MoM fast direct computation for RCS and ISAR applications. 2016 10th European Conference on Antennas and Propagation (EuCAP), Davos, Switzerland, 2016, pp. 1-5, doi: 10.1109/EuCAP.2016.7481631.
• E. Agullo, A. Falco, L. Giraud, G. Sylvand - Vers une factorisation symbolique hiérarchique de rang faible pour des matrices creuses - Conférence d’informatique en Parallélisme, Architecture et Système (ComPAS'17), Jun 2017, Sophia Antipolis, France
• A Falco, E Agullo, L Giraud, G Sylvand. Hierarchical Symbolic Factorization for Sparse Matrices. Sparse Days 2018, 2018.
• A. Falco, G. Sylvand (2019, January). H-matrix Solver applied to Coupled FEM-BEM Aeroacoustics Simulations. In Sixth Chilean Workshop on Numerical Analysis of Partial Differential Equations (WONAPDE 2019).
• G. Sylvand - H-Matrix Solver Applied to Coupled FEM-BEM Aeroacoustics Simulations - Journées Ondes Sud-Ouest (JOSO), Mar 2019, Le Barp, France
• R. Carratalá-Sáez, M. Faverge, G. Pichon, G. Sylvand and E. S. Quintana-Ortí. Tiled Algorithms for Efficient Task-Parallel H-Matrix Solvers. 2020 IEEE International Parallel and Distributed Processing Symposium Workshops (IPDPSW), New Orleans, LA, USA, 2020, pp. 757-766, doi: 10.1109/IPDPSW50202.2020.00131.
• R. Carratalá-Sáez, M. Faverge, G. Pichon, E. S. Quintana-Ortí, G. Sylvand - Exploiting Generic Tiled Algorithms Toward Scalable H-Matrices Factorizations on Top of Runtime Systems - SIAM PP20 - SIAM Conference on Parallel Processing for Scientific Computing, Feb 2020, Seattle, United States
• E. Agullo, M. Felšöci and G. Sylvand. Comparison of coupled solvers for FEM/BEM linear systems arising from discretization of aeroacoustic problems. COMPAS 2021 - Conférence francophone d’informatique en Parallélisme, Architecture et Système, 2021
• T. Abboud, B. Chaigne, M. Felšöci, A. Piche and G. Sylvand. Numerical Modelisation of Interaction between Plasma Thruster Plume and Antennas on Small Satellites. Waves 2022 - International Conference on Mathematical and Numerical Aspects of Wave Propagation, 2022
• Piche, Alloatti, Lescoat, Sevoz, Perraud, Benjamin, Sylvand, Capet, Chaigne, Abboud. Management of Antenna Positioning and Radiofrequency Compatibility on Small Satellites. 2022 ESA Workshop on Aerospace EMC (Aerospace EMC), Virtual, 2022, pp. 01-05, doi: 10.23919/AerospaceEMC54301.2022.9828861.
• E. Agullo, M. Felšöci and G. Sylvand. Direct solution of larger coupled sparse/dense linear systems using low-rank compression on single-node multi-core machines in an industrial context. IPDPS 2022 - IEEE International Parallel and Distributed Processing Symposium, 2022, pp. 25–35
• E. Agullo, A. Buttari, M. Felšöci, G. Sylvand. Vers un solveur direct à base de tâches pour des systèmes linéaires FEM/BEM creux/denses. ComPAS 2023 - Conférence francophone d'informatique en Parallélisme, Architecture et Système, Jul. 2023, Annecy, France

This list is automatically generated from hal database, it will be less extensive than the lists above, but can contain some helpful links to online documents.