I did my Ph.D. from October 2010 to October 2013 at INPT-ENSEEIHT-IRIT,
under the supervision of Patrick Amestoy (INPT-ENSEEIHT-IRIT) and
Alfredo Buttari (CNRS-IRIT). My Ph.D. work focused on Block Low-Rank
(BLR) approximations for multifrontal solvers. I coauthored the first development version
of MUMPS (MUltifrontal Massively Parallel Solver)
embedding BLR techniques.
My main fields of interest are numerical linear algebra and high performance computing.
Clement Weisbecker
Livermore Software Technology Corporation
7374 Las Positas Road
Livermore, CA 94551, USA
Phone: (+1) 925 245 4518
Phone: (+55) 11 9 9218 7569
Email: clement [at] lstc [dot] com
Resume
7374 Las Positas Road
Livermore, CA 94551, USA
Phone: (+1) 925 245 4518
Phone: (+55) 11 9 9218 7569
Email: clement [at] lstc [dot] com
Resume
Introduction
Publications
P. Amestoy, C. Ashcraft, O. Boiteau, A. Buttari, J.-Y. L'Excellent and
C. Weisbecker.
Improving multifrontal methods by means of block low-rank representations.
In: Society for Industrial and Applied Mathematics (SIAM), Vol. 37 N. 3, p. 1451-1474, July 2015. P. Amestoy, R. Brossier, A. Buttari, J.-Y. L'Excellent, T. Mary, L. Metivier, A. Miniussi, S. Operto, J. Virieux and C. Weisbecker.
3D frequency-domain seismic modeling with a Parallel BLR multifrontal direct solver.
In: Proceeding of International Conference "Society of Exploration Geophysicits (SEG) Annual Meeting" with peer-review, New Orleans, USA, 2015. P. Amestoy, R. Brossier, A. Buttari, J.-Y. L'Excellent, T. Mary, L. Metivier, A. Miniussi, S. Operto, A. Ribodetti, J. Virieux and C. Weisbecker.
Efficient 3D frequency-domain full-waveform inversion of ocean-bottom cable data with sparse block low-rank direct solver: a real data case study from the North Sea.
In: Proceeding of International Conference "Society of Exploration Geophysicits (SEG) Annual Meeting" with peer-review, New Orleans, USA, 2015. B. Pajot, Y. Li, V. Berthoumieux, C. Weisbecker, R. Brossier, L. Metivier, P. Thierry, S. Operto and J. Virieux.
A review of recent forward problem developments used for frequency-domain FWI.
In: Expanded Abstracts, 76th Annual "European Association of Geoscientists and Engineers (EAGE)" Conference and Exhibition, with peer-review, Amsterdam, Netherlands, 2014. C. Weisbecker, P. Amestoy, O. Boiteau, R. Brossier, A. Buttari, J.-Y. L'Excellent, S. Operto and J. Virieux.
3D frequency-domain seismic modeling with a Block Low-Rank algebraic multifrontal direct solver.
In: Proceeding of International Conference "Society of Exploration Geophysicits (SEG) Annual Meeting" with peer-review, Houston, USA, 2013. E. Agullo, P. Amestoy, A. Buttari, A. Guermouche, G. Joslin, J.-Y. L’Excellent, X. S. Li, A. Napov, F.-H. Rouet, M. Sid-Lakhdar, S. Wang, C. Weisbecker and I. Yamazaki.
Recent advances in sparse direct solvers.
In: Proceeding of International Conference on Structural Mechanics in Reactor Technology (SMIRT-22) with peer-review, San Francisco, USA, 2013. P. Amestoy, A. Buttari, G. Joslin, J.-Y. L'Excellent, M. Sid-Lakhdar, C. Weisbecker, M. Forzan, C. Pozza, R. Perrin and V. Pellissier.
Shared memory parallelism and low-rank approximation techniques applied to direct solvers in FEM simulation.
In: IEEE Transactions on Magnetics, IEEE, Numéro spécial Extended selected short papers from Compumag 2013 conference, Budapest, Hungary, 2013.
Improving multifrontal methods by means of block low-rank representations.
In: Society for Industrial and Applied Mathematics (SIAM), Vol. 37 N. 3, p. 1451-1474, July 2015. P. Amestoy, R. Brossier, A. Buttari, J.-Y. L'Excellent, T. Mary, L. Metivier, A. Miniussi, S. Operto, J. Virieux and C. Weisbecker.
3D frequency-domain seismic modeling with a Parallel BLR multifrontal direct solver.
In: Proceeding of International Conference "Society of Exploration Geophysicits (SEG) Annual Meeting" with peer-review, New Orleans, USA, 2015. P. Amestoy, R. Brossier, A. Buttari, J.-Y. L'Excellent, T. Mary, L. Metivier, A. Miniussi, S. Operto, A. Ribodetti, J. Virieux and C. Weisbecker.
Efficient 3D frequency-domain full-waveform inversion of ocean-bottom cable data with sparse block low-rank direct solver: a real data case study from the North Sea.
In: Proceeding of International Conference "Society of Exploration Geophysicits (SEG) Annual Meeting" with peer-review, New Orleans, USA, 2015. B. Pajot, Y. Li, V. Berthoumieux, C. Weisbecker, R. Brossier, L. Metivier, P. Thierry, S. Operto and J. Virieux.
A review of recent forward problem developments used for frequency-domain FWI.
In: Expanded Abstracts, 76th Annual "European Association of Geoscientists and Engineers (EAGE)" Conference and Exhibition, with peer-review, Amsterdam, Netherlands, 2014. C. Weisbecker, P. Amestoy, O. Boiteau, R. Brossier, A. Buttari, J.-Y. L'Excellent, S. Operto and J. Virieux.
3D frequency-domain seismic modeling with a Block Low-Rank algebraic multifrontal direct solver.
In: Proceeding of International Conference "Society of Exploration Geophysicits (SEG) Annual Meeting" with peer-review, Houston, USA, 2013. E. Agullo, P. Amestoy, A. Buttari, A. Guermouche, G. Joslin, J.-Y. L’Excellent, X. S. Li, A. Napov, F.-H. Rouet, M. Sid-Lakhdar, S. Wang, C. Weisbecker and I. Yamazaki.
Recent advances in sparse direct solvers.
In: Proceeding of International Conference on Structural Mechanics in Reactor Technology (SMIRT-22) with peer-review, San Francisco, USA, 2013. P. Amestoy, A. Buttari, G. Joslin, J.-Y. L'Excellent, M. Sid-Lakhdar, C. Weisbecker, M. Forzan, C. Pozza, R. Perrin and V. Pellissier.
Shared memory parallelism and low-rank approximation techniques applied to direct solvers in FEM simulation.
In: IEEE Transactions on Magnetics, IEEE, Numéro spécial Extended selected short papers from Compumag 2013 conference, Budapest, Hungary, 2013.
Conferences
J. Anton, C. Ashcraft and C. Weisbecker.
Clément Weisbecker.
A Block Low-Rank Multithreaded Factorization for Dense BEM Operators.
In: SIAM Conference on Parallel Processing, Paris, France, 2016. J. Anton, C. Ashcraft and C. Weisbecker.
Clément Weisbecker.
Traversing a BLR Factorization Task Dag Based on a Fan-All Wraparound Map.
In: SIAM Conference on Parallel Processing, Paris, France, 2016. F.-H. Rouet, P. Amestoy, C. Ashcraft, A. Buttari, P. Ghysels, J.-Y. L'Excellent, X. S. Li, T. Mary and C. Weisbecker.
A Comparison of Parallel Rank-Structured Solvers.
In: SIAM Conference on Parallel Processing, Paris, France, 2016. C. Weisbecker, C. Ashcraft, J. Anton.
On the Updates in a Dense Block Low-Rank Factorization.
In: CIMI workshop on Fast Solvers, Toulouse, France, 2015. P. Amestoy, C. Ashcraft, O. Boiteau, A. Buttari, J.-Y. L'Excellent and C. Weisbecker.
Clément Weisbecker.
Parallelization and Pivoting in a Block-Low Rank Multifrontal Solver.
In: SIAM Conference on Parallel Processing, Portland (OR), USA, 2014. P. Amestoy, C. Ashcraft, O. Boiteau, A. Buttari, J.-Y. L'Excellent and C. Weisbecker.
Clément Weisbecker.
Block Low-Rank (BLR) approximations to improve multifrontal sparse solvers.
In: Sparse Days, CERFACS, Toulouse, France, 2013. P. Amestoy, C. Ashcraft, O. Boiteau, A. Buttari, J.-Y. L'Excellent and C. Weisbecker.
Clément Weisbecker.
Improving Multifrontal methods by means of Low-Rank Approximations techniques.
In: SIAM Conference on Applied Linear Algebra, Valencia, Spain, 2012. P. Amestoy, C. Ashcraft, O. Boiteau, A. Buttari, J.-Y. L'Excellent and C. Weisbecker.
Clément Weisbecker.
Grouping variables in Frontal Matrices to improve Low-Rank Approximations in a Multifrontal Solver.
In: International Conference On Preconditioning Techniques For Scientific And Industrial Applications, Preconditioning 2011, Bordeaux, France, 2011.
Clément Weisbecker.
A Block Low-Rank Multithreaded Factorization for Dense BEM Operators.
In: SIAM Conference on Parallel Processing, Paris, France, 2016. J. Anton, C. Ashcraft and C. Weisbecker.
Clément Weisbecker.
Traversing a BLR Factorization Task Dag Based on a Fan-All Wraparound Map.
In: SIAM Conference on Parallel Processing, Paris, France, 2016. F.-H. Rouet, P. Amestoy, C. Ashcraft, A. Buttari, P. Ghysels, J.-Y. L'Excellent, X. S. Li, T. Mary and C. Weisbecker.
A Comparison of Parallel Rank-Structured Solvers.
In: SIAM Conference on Parallel Processing, Paris, France, 2016. C. Weisbecker, C. Ashcraft, J. Anton.
On the Updates in a Dense Block Low-Rank Factorization.
In: CIMI workshop on Fast Solvers, Toulouse, France, 2015. P. Amestoy, C. Ashcraft, O. Boiteau, A. Buttari, J.-Y. L'Excellent and C. Weisbecker.
Clément Weisbecker.
Parallelization and Pivoting in a Block-Low Rank Multifrontal Solver.
In: SIAM Conference on Parallel Processing, Portland (OR), USA, 2014. P. Amestoy, C. Ashcraft, O. Boiteau, A. Buttari, J.-Y. L'Excellent and C. Weisbecker.
Clément Weisbecker.
Block Low-Rank (BLR) approximations to improve multifrontal sparse solvers.
In: Sparse Days, CERFACS, Toulouse, France, 2013. P. Amestoy, C. Ashcraft, O. Boiteau, A. Buttari, J.-Y. L'Excellent and C. Weisbecker.
Clément Weisbecker.
Improving Multifrontal methods by means of Low-Rank Approximations techniques.
In: SIAM Conference on Applied Linear Algebra, Valencia, Spain, 2012. P. Amestoy, C. Ashcraft, O. Boiteau, A. Buttari, J.-Y. L'Excellent and C. Weisbecker.
Clément Weisbecker.
Grouping variables in Frontal Matrices to improve Low-Rank Approximations in a Multifrontal Solver.
In: International Conference On Preconditioning Techniques For Scientific And Industrial Applications, Preconditioning 2011, Bordeaux, France, 2011.
Thesis
Clément Weisbecker.
Improving multifrontal solvers by means of algebraic Block Low-Rank representations.
In: Ph.D. thesis, Institut National Polytechnique de Toulouse, October 28, 2013.
Improving multifrontal solvers by means of algebraic Block Low-Rank representations.
In: Ph.D. thesis, Institut National Polytechnique de Toulouse, October 28, 2013.
Last update : June 2017.