Publications of Patrick AMESTOY
Patrick Amestoy, Olivier Boiteau, Alfredo Buttari, Matthieu Gerest, Fabienne Jézéquel, Jean-Yves L’excellent, Théo Mary
Communication Avoiding Block Low-Rank Parallel Multifrontal Triangular Solve with Many Right-Hand Sides
SIAM Journal on Matrix Analysis and Applications, 2024, 45 (1), pp.148-166. ⟨10.1137/23M1568600⟩
Patrick Amestoy, Alfredo Buttari, Nicholas Higham, Jean-Yves L’excellent, Théo Mary, Bastien Vieublé
Five-Precision GMRES-based iterative refinement
SIAM Journal on Matrix Analysis and Applications, 2024, 45 (1), pp.529–552. ⟨10.1137/23M1549079⟩
Patrick Amestoy, Alfredo Buttari, Nicholas J Higham, Jean-Yves L’excellent, Théo Mary, Bastien Vieublé
Combining sparse approximate factorizations with mixed precision iterative refinement
ACM Transactions on Mathematical Software, 2023, 49 (1), pp.1-29. ⟨10.1145/3582493⟩
Stéphane Operto, Patrick Amestoy, Stephen Beller, Alfredo Buttari, L. Combe, Victorita Dolean, Matthieu Gerest, Gaoshan Guo, Pierre Jolivet, Jean-Yves L’Excellent, Frichnel Mamfoumbi, Théo Mary, Chiara Puglisi, Alessandra Ribodetti, Pierre-Henri Tournier
Is 3D frequency-domain FWI of full-azimuth/long-offset OBN data feasible? The Gorgon case study
Leading Edge, 2023, 42 (3), pp.173-183. ⟨10.1190/tle42030173.1⟩
Patrick Amestoy, Olivier Boiteau, Alfredo Buttari, Matthieu Gerest, Fabienne Jézéquel, Jean-Yves L’Excellent, Théo Mary
Mixed Precision Low Rank Approximations and their Application to Block Low Rank LU Factorization
IMA Journal of Numerical Analysis, 2022, ⟨10.1093/imanum/drac037⟩
Patrick Amestoy, Alfredo Buttari, Jean-Yves L’Excellent, Théo Mary
Bridging the gap between flat and hierarchical low-rank matrix formats: the multilevel BLR format
SIAM Journal on Scientific Computing, 2019, 41 (3), pp.A1414-A1442. ⟨10.1137/18M1182760⟩
Patrick Amestoy, Alfredo Buttari, Jean-Yves L’Excellent, Théo Mary
Performance and Scalability of the Block Low-Rank Multifrontal Factorization on Multicore Architectures
ACM Transactions on Mathematical Software, 2019, 45 (1), pp.1-23. ⟨10.1145/3242094⟩
Patrick Amestoy, Jean-Yves L’Excellent, Gilles Moreau
On exploiting sparsity of multiple right-hand sides in sparse direct solvers
SIAM Journal on Scientific Computing, 2019, 41 (1), pp.A269-A291. ⟨10.1137/17M1151882⟩
Patrick Amestoy, Alfredo Buttari, Jean-Yves L’Excellent, Théo Mary
On the Complexity of the Block Low-Rank Multifrontal Factorization
SIAM Journal on Scientific Computing, 2017, 39 (4), pp.34. ⟨10.1137/16M1077192⟩
Daniil Shantsev, Piyoosh Jaysaval, Sébastien de La Kethulle de Ryhove, Patrick Amestoy, Alfredo Buttari, Jean-Yves L’Excellent, Théo Mary
Large-scale 3D EM modeling with a Block Low-Rank multifrontal direct solver
Geophysical Journal International, 2017, 209 (3), pp.1558-1571. ⟨10.1093/gji/ggx106⟩
Patrick Amestoy, Romain Brossier, Alfredo Buttari, Jean-Yves L’Excellent, Théo Mary, Ludovic Métivier, Alain Miniussi, Stéphane Operto
Fast 3D frequency-domain full waveform inversion with a parallel Block Low-Rank multifrontal direct solver: application to OBC data from the North Sea
Geophysics, 2016, 81 (6), pp.R363-R383. ⟨10.1190/geo2016-0052.1⟩
Emmanuel Agullo, Patrick Amestoy, Alfredo Buttari, Abdou Guermouche, Jean-Yves L’Excellent, François-Henry Rouet
Robust memory-aware mappings for parallel multifrontal factorizations
SIAM Journal on Scientific Computing, 2016, 38 (3), pp.C256 – C279. ⟨10.1137/130938505⟩
Patrick Amestoy, Cleve Ashcraft, Olivier Boiteau, Alfredo Buttari, Jean-Yves L’Excellent, Clément Weisbecker
Improving Multifrontal Methods by Means of Block Low-Rank Representations
SIAM Journal on Scientific Computing, 2015, 37 (3), pp.A1451-A1474. ⟨10.1137/120903476⟩
Patrick Amestoy, Alfredo Buttari, Guillaume Joslin, Jean-Yves L’Excellent, Mohamed Sid-Lakhdar, Clément Weisbecker, Michele Forzan, Cristian Pozza, Rémy Perrin, Valène Pellissier
Shared memory parallelism and low-rank approximation techniques applied to direct solvers in FEM simulation
IEEE Transactions on Magnetics, 2014, vol. 50 (n° 2), pp. 1-4. ⟨10.1109/TMAG.2013.2284024⟩
Laurent Bouchet, Patrick Amestoy, Alfredo Buttari, François-Henry Rouet, Maxime Chauvin
INTEGRAL/SPI data segmentation to retrieve sources intensity variations
In : Astronomy & Astrophysics (A&A), EDP Sciences, Vol. A52, (on line), July 2013.
URL : http://dx.doi.org/10.1051/0004-6361/201219605 – https://oatao.univ-toulouse.fr/12455/
BibTeXLaurent Bouchet, Patrick Amestoy, Alfredo Buttari, François-Henry Rouet, Maxime Chauvin
Simultaneous analysis of large INTEGRAL/SPI datasets: optimizing the computation of the solution and its variance using sparse matrix algorithms
In : Astronomy and Computing, Elsevier, Vol. 1, pp. 59-69, 2013.
URL : http://www.sciencedirect.com/science/article/pii/S2213133713000061?via=ihub – https://oatao.univ-toulouse.fr/12446/
BibTeXPatrick Amestoy, Iain Duff, Jean-Yves L’Excellent, Yves Robert, François-Henry Rouet, Bora Uçar
On computing inverse entries of a sparse matrix in an out-of-core environment
In : SIAM Journal on Scientific Computing, Society for Industrial and Applied Mathematics (SIAM), USA, Vol. 34 N. 4, pp. 1975-1999, July 2012.
Patrick Amestoy, Iain Duff, Abdou Guermouche, Tzvetomila Slavova
Analysis of the Solution Phase of a Parallel Multifrontal Approach
In : Parallel Computing, World Scientific, Vol. doi:10.1016/j.parco.2009.06.00 N. 36, pp. 3-15, February 2010.
Abstract URL : http://dx.doi.org/10.1016/j.parco.2009.06.001
BibTeXFlorent Sourbier, Stéphane Operto, Jean Virieux, Patrick Amestoy, Jean-Yves L’Excellent
FWT2D: a massively parallel program for frequency-domain Full-Waveform Tomography of wide-aperture seismic data – Part 2: numerical examples and scalability analysis
In : Computer & Geosciences, Elsevier, Vol. 35 N. 3, pp. 496-514, 2009.
Florent Sourbier, Stéphane Operto, Jean Virieux, Patrick Amestoy, Jean-Yves L’Excellent
FWT2D: a massively parallel program for frequency-domain Full-Waveform Tomography of wide-aperture seismic data – Part 1: algorithm
In : Computer & Geosciences, Elsevier, Vol. 35 N. 3, pp. 487-495, 2009.
Stéphane Operto, Jean Virieux, Patrick Amestoy, Luc Giraud, Jean-Yves L’Excellent
3D frequency-domain finite difference modeling of acoustic wave propagation using a massively parallel direct solver : a feasibility study
In : Geophysics, Society of Exploration Geophysicists, USA, Vol. 72 N. 5, pp. 195-211, 2007.
Patrick Amestoy, Xiaoye Sherry Li, Esmond G. Ng
Diagonal Markowitz Scheme With Local Symmetrization
In : SIAM Journal on Matrix Analysis and Applications, Society for Industrial and Applied Mathematics (SIAM), USA, Vol. 29 N. 1, pp. 228-244, 2007.
Patrick Amestoy, Xiaoye Sherry Li, Stéphane Pralet
Unsymmetric ordering using a constrained markowitz scheme
In : SIAM Journal on Matrix Analysis and Applications, Society for Industrial and Applied Mathematics (SIAM), USA, Vol. 29 N. 1, pp. 302-327, 2007.
Patrick Amestoy, Abdou Guermouche, Jean-Yves L’Excellent, Stéphane Pralet
Hybrid scheduling for the parallel solution of linear systems
In : Parallel Computing, World Scientific, Vol. 32 N. 2, pp. 136-156, 2006.
Patrick Amestoy, Iain Duff, Christof Voemel
Task Scheduling in an asynchronous distributed multifrontal solver
In : SIAM Journal on Matrix Analysis and Applications, SIAM, Vol. 26 N. 2, pp. 544-565, 2005.
Patrick Amestoy, T Davis, Iain Duff
Algorithm 837: AMD, an approximate minimum degree ordering algorithm
In : ACM Trans. Math. Software, ACM, Vol. 30 N. 3, pp. 381-388, September 2004.
Patrick Amestoy, Iain Duff, Stéphane Pralet, Christof Voemel
Adapting a parallel sparse direct solver to SMP architectures
In : Parallel Computing, World Scientific, Vol. 29 N. 11-12, pp. 1645-1668, 2003.
Abstract URL : http://www.enseeiht.fr/apo/MUMPS/RT_APO_03_1.ps.gz
BibTeXPatrick Amestoy, Iain Duff, Jean-Yves L’Excellent, Xiaoye Sherry Li
Impact of the Implementation of MPI Point-to-Point Communications on the Performance of Two General Sparse Solvers
In : Parallel Computing, World Scientific, Vol. 29 N. 7, pp. 833-847, 2003.
URL : http://www.enseeiht.fr/apo/MUMPS/RT_APO_01_4.ps.gz
BibTeXPatrick Amestoy, Chiara Puglisi
An unsymmetrized multifrontal LU factorization
In : SIAM Journal on Matrix Analysis and Applications, Vol. 24 N. 2, pp. 553-569, 2002.
Patrick Amestoy, Iain Duff, Jean-Yves L’Excellent, Xiaoye Sherry Li
Analysis, Tuning and Comparison of Two General Sparse Solvers for Distributed Memory Computers
In : ACM Transactions on Mathematical Software, Vol. 27 N. 4, pp. 388-421, 2001.
Patrick Amestoy, Iain Duff, Jean-Yves L’Excellent, Jacko Koster
A fully asynchronous multifrontal solver using distributed dynamic scheduling
In : SIAM Journal on Matrix Analysis and Applications, SIAM, Vol. 23, pp. 15-41, 2001.
Francois Pellegrini, Jean Roman, Patrick Amestoy
Hybridizing Nested Dissection and Halo Approximate Minimum Degree for Efficient Sparse Matrix Ordering
In : Concurrency: Practice and Experience, Vol. 12, pp. 69-84, 2000.
Patrick Amestoy, Iain Duff, Jean-Yves L’Excellent
Multifrontal parallel distributed symmetric and unsymmetric solvers
In : Comput. Methods in Appl. Mech. Eng., Vol. 184, pp. 501-520, 2000.
Patrick Amestoy, Iain Duff, Jean-Yves L’Excellent
Parallelisation de la factorisation LU de matrices creuses non-symetriques pour des architectures a memoire distribuee
In : Calculateurs Paralleles, Reseaux et Systemes Repartis, Vol. 10, N. 5, pp. 509-520, 1998.
Patrick Amestoy, Iain Duff, Chiara Puglisi
Multifrontal QR factorization in a multiprocessor environment
In : Int. Journal of Num. Linear Alg. and Appl., Vol. 3(4), pp. 275-300, 1996.
Patrick Amestoy, T Davis, Iain Duff
An approximate minimum degree ordering algorithm
In : SIAM J. Matrix Analysis and Applications, Vol. 17, pp. 886-905, 1996.
Patrick Amestoy, Michel Daydé, Iain Duff, P Morère
Linear algebra calculations on a virtual shared memory computer
In : Int Journal of High Speed Computing, Vol. 7, pp. 21-43, 1995.
Patrick Amestoy, Olivier Boiteau, Alfredo Buttari, Laure Combe, Florian Faucher, Matthieu Gerest, Fabienne Jézéquel, Jean-Yves L’Excellent, Théo Mary, S. Operto, Chiara Puglisi
Recent advances on sparse direct solver using Block Low-Rank and mixed precision for large scale applications
SIAM Conference on Applied Linear Algebra (LA24), SIAM: Society for Industrial and Applied Mathematics; Sorbonne Universté, May 2024, Paris, France
Patrick Amestoy, Olivier Boiteau, Alfredo Buttari, Matthieu Gerest, Fabienne Jézéquel, Jean-Yves L’Excellent, Théo Mary
Reducing communications and memory costs of parallel Block Low-Rank solvers
SIAM Conference on Computational Science and Engineering (CSE 2023), Feb 2023, Amsterdam, Netherlands
Patrick Amestoy, Olivier Boiteau, Alfredo Buttari, Matthieu Gerest, Fabienne Jézéquel, Jean-Yves L’Excellent, Théo Mary
Solving linear systems efficiently using block low-rank compression in mixed precision
45ème Congrès National d’Analyse Numérique (CANUM 2022), Jun 2022, Évian-les-Bains, France
Patrick Amestoy, Alfredo Buttari, Florian Faucher, Jean-Yves L’Excellent, Matthieu Gerest, Théo Mary
Mixed precision sparse direct solver applied to 3D wave propagation
8th European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS 2022), Jun 2022, Oslo, Norway
Patrick Amestoy, Olivier Boiteau, Alfredo Buttari, Matthieu Gerest, Fabienne Jézéquel, Jean-Yves L’Excellent, Théo Mary
Solving linear systems efficiently using mixed-precision Block Low-Rank compression
Rencontres Arithmétique de l’informatique Mathématique (RAIM 2021), GdR GdR IM : Informatique Mathématique, May 2021, Paris, France
Patrick Amestoy, Romain Brossier, Alfredo Buttari, Jean-Yves L’Excellent, Théo Mary, Ludovic Métivier, Alain Miniussi, Stéphane Operto, Alessandra Ribodetti, Jean Virieux, Clement 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
SEG Annual meeting, Oct 2015, New Orleans, United States. pp.1303-1308, ⟨10.1190/segam2015-5713962.1⟩
Patrick Amestoy, Romain Brossier, Alfredo Buttari, Jean-Yves L’Excellent, Théo Mary, Ludovic Métivier, Alain Miniussi, Stéphane Operto, Jean Virieux, Clement Weisbecker
3D frequency-domain seismic modeling with a Parallel BLR multifrontal direct solver
SEG Annual meeting, Oct 2015, New Orleans, United States. pp.3606-3611
Mohamed Wissam Sid Lakhdar, Jean-Yves L’Excellent, Patrick Amestoy
Efficient deadlock-free asynchronous approaches for a distributed-memory sparse direct solver (ICIAM 2015)
8th International Congress on Industrial and Applied Mathematics (ICIAM 2015), International Council for Industrial and Applied Mathematics (ICIAM); National Natural Science Foundation of China; Chinese Academy of Sciences; China Association for Science and Technology; Ministry of Science and Technology of the People’s Republic of China, Aug 2015, Beijing, China
Patrick Amestoy, Jean-Yves L’Excellent, Mohamed Sid-Lakhdar
Characterizing asynchronous broadcast trees for multifrontal factorizations (SIAM – CSC 2014)
6th SIAM Workshop on Combinatorial Scientific Computing (CSC 2014), SIAM: Society for Industrial and Applied Mathematics; LIP : Laboratoire de l’Informatique du Parallélisme (CNRS, ENS Lyon, INRIA, Université Claude Bernard Lyon 1), Jul 2014, Lyon, France
Patrick Amestoy, Jean-Yves L’Excellent, François-Henry Rouet, Wissam M. Sid-Lakhdar
Modeling 1D distributed-memory dense kernels for an asynchronous multifrontal sparse solver
High Performance Computing for Computational Science, {VECPAR} 2014 – 11th International Conference, Revised Selected Papers, Jun 2014, Eugene, Oregon, United States. pp.156-169
Clément Weisbecker, Patrick Amestoy, Olivier Boiteau, Romain Brossier, Alfredo Buttari, Jean-Yves L’Excellent, Stéphane Operto, Jean Virieux
3D frequency-domain seismic modeling with a Block Low-Rank algebraic multifrontal direct solver (regular paper)
In : Society of Exploration Geophysicists annual meeting (SEG 2013), Houston – USA, 22/09/13-27/09/13, Society of Exploration Geophysicists, (on line), January 2013.
URL : https://www.onepetro.org/conference-paper/SEG-2013-0603 – https://oatao.univ-toulouse.fr/15168/
BibTeXEmmanuel Agullo, Patrick Amestoy, Alfredo Buttari, Abdou Guermouche, Guillaume Joslin, Jean-Yves L’Excellent, Xiaoye Sherry Li, Artem Napov, François-Henry Rouet, Mohamed Sid-Lakhdar, Shen Wang, Clément Weisbecker, Ichitaro Yamazaki
Recent Advances in Sparse Direct Solvers (regular paper)
In : Conference on Structural Mechanics in Reactor Technology (SMIRT 2013), San Francisco, 18/08/13-23/08/13, Elsevier, (on line), September 2013.
URL : http://crd.lbl.gov/assets/pubs_presos/paper3.pdf – https://oatao.univ-toulouse.fr/15162/
BibTeXEmmanuel Agullo, Patrick Amestoy, Alfredo Buttari, Abdou Guermouche, Jean-Yves L’Excellent, François-Henry Rouet
Robust memory-aware mappings for parallel multifrontal factorizations
In : SIAM conference on Parallel Processing for Scientific Computing (PP12), Savannah, GA, USA, 15/02/12-17/02/12.
Patrick Amestoy, Alfredo Buttari, Abdou Guermouche, Jean-Yves L’Excellent, Mohamed Sid-Lakhdar
Exploiting Multithreaded Tree Parallelism for Multicore Systems in a Parallel Multifrontal Solver
In : SIAM conference on Parallel Processing for Scientific Computing (PP12), Savannah, GA, USA, 15/02/12-17/02/12.
Laurent Bouchet, Patrick Amestoy, Alfredo Buttari, François-Henry Rouet, Maxime Chauvin
INTEGRAL/SPI data segmentation to retrieve sources intensity variations (regular paper)
In : An INTEGRAL view of the high-energy sky (the first 10 years), Paris, France, 15/10/12-19/10/12, A. Goldwurm, F. Lebrun, C. Winkler (Eds.), Proceedings of Science, (on line), 2012.
URL : http://pos.sissa.it/cgi-bin/reader/conf.cgi?confid=176
BibTeXPatrick Amestoy, Cleve Ashcraft, Olivier Boiteau, Alfredo Buttari, Jean-Yves L’Excellent, Clément Weisbecker
Improving Multifrontal methods by means of Low-Rank Approximations techniques
In : 2012 SIAM Conference on Applied Linear Algebra, Valencia, Spain, 18/06/12-22/06/12.
Abstract URL : http://amestoy.perso.enseeiht.fr/doc/weisbecker_la12.pdf
BibTeXPatrick Amestoy, Iain Duff, Jean-Yves L’Excellent, François-Henry Rouet, Bora Uçar
Parallel computation of entries of A-1
In : SIAM Workshop on Combinatorial Scientific Computing (CSC11), Darmstadt, Germany, 19/05/11-21/05/11.
Abstract URL : http://amestoy.perso.enseeiht.fr/doc/CSC11.pdf
BibTeXPatrick Amestoy, Cleve Ashcraft, Olivier Boiteau, Alfredo Buttari, Jean-Yves L’Excellent, 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, 16/05/11-18/05/11.
Abstract URL : http://amestoy.perso.enseeiht.fr/doc/weisbecker_precond11.pdf
BibTeXPatrick Amestoy, François-Henry Rouet, Bora Uçar
Partitions and permutations for the partial inverse of a matrix
In : Sparse Day @ Berkeley, Berkeley, CA, USA, 02/11/09-02/11/09.
URL : http://amestoy.perso.enseeiht.fr/doc/SparseDayBerkeley.pdf
BibTeXPatrick Amestoy, François-Henry Rouet, Bora Uçar
On computing arbitrary entries of the inverse of a matrix
In : SIAM Workshop on Combinatorial Scientific Computing (CSC09), Monterey, CA, USA, 29/10/09-31/10/09.
Abstract URL : http://amestoy.perso.enseeiht.fr/doc/CSC09.pdf
BibTeXPatrick Amestoy, Iain Duff, Tzvetomila Slavova, Bora Uçar
Out-of-core solution for singleton rhs vectors
In : SIAM Conference on Computational Science and Engineering (CSE09), Miami, Florida, 02/03/09-08/03/09.
Patrick Amestoy, Iain Duff, Tzvetomila Slavova, Bora Uçar
ON OUT-OF-CORE SOLUTION OF SPARSE LINEAR SYSTEMS FOR SPARSE RIGHT HAND-SIDE VECTORS
In : Dagstuhl Seminar on Combinatorial Scientific Computing, Dagstuhl, 01/02/09-06/02/09.
Abstract URL : http://wiki.stce.rwth-aachen.de/bin/view/CSCDagstuhl/WebHome
BibTeXPatrick Amestoy, Alfredo Buttari, Philippe Combes, Abdou Guermouche, Jean-Yves L’Excellent, Tzvetomila Slavova, Bora Uçar
Overview of MUMPS (A multifrontal Massively Parallel Solver)
In : 2nd French-Japonese workshop on Petascale Applications, Algorithms and Programming (PAAP’08), Toulouse, 23/06/08-24/06/08.
Patrick Amestoy, Alfredo Buttari, Jean-Yves L’Excellent
Towards a parallel analysis phase for a multifrontal sparse solver
In : 5th International workshop on Parallel Matrix Algorithms and Applications (PMAA’08), Neuchâtel, Switzerland, 20/06/08-22/06/08.
Patrick Amestoy, Iain Duff, Daniel Ruiz, Bora Uçar
A Parallel Matrix Scaling Algorithm
In : High Performance Computing for Computational Science – VECPAR08, Toulouse, 24/06/08-27/06/08, Springer, LNCS 5336, pp. 309-321, June 2008.
Patrick Amestoy, Iain Duff, Abdou Guermouche, Tzvetomila Slavova
On the solution phase of a parallel sparse solver in a limited memory environment
In : SIAM PP08 (SIAM conference on Parallel Processing), Atlanta, 12/03/08-14/03/08.
Patrick Amestoy, Michel Daydé, Ronan Guivarch, Christophe Hamerling, Marc Pantel
Use of Scenarios for Generating Dynamic Execution Workflows over the Grid within the Grid-TLSE project
In : International E-Conference on Computer Science, Electronic Conference, 10/07/06-14/07/06, Vol. 8, Theodore Simos, Georgios Psihoyios (Eds.), BRILL, Lecture Series on Computer and Computational Science, pp. 1-11, September 2007.
Patrick Amestoy, Michel Daydé, Iain Duff, Luc Giraud, Azzam Haidar, Stéphane Lanteri, Jean-Yves L’Excellent, Pierre Ramet
Trends in Sparse Linear Research and Software Developments in France
In : First French-Japanese Workshop « Petascale Applications, Algorithms and Programming » (PAAP), Tokyo, Japan, 01/11/07-02/11/07.
URL : http://www2.lifl.fr/MAP/paap/firstPaapWorkshop/presentations/paap2007_dayde.ppt
BibTeXPatrick Amestoy, Frédéric Camillo, Michel Daydé, Luc Giraud, Ronan Guivarch, Victoria Moya Laniel, Marc Pantel, Chiara Puglisi
Goal and Status of the TLSE Platform
In : First REDIMPS Workshop, Tokyo (Japan), 29/05/07.
URL : http://redimps.enseeiht.fr/Redimps_07_08/06dayde.pdf
BibTeXPatrick Amestoy, Iain Duff, Abdou Guermouche, Tzvetomila Slavova
A Preliminary Analysis of the Out-of-Core Solution Phase of a Parallel Multifrontal Approach
In : 4th International Workshop on Parallel Matrix Algorithms and Applications (PMAA’06), Rennes, 07/09/06-09/09/06.
Stéphane Operto, Jean Virieux, Patrick Amestoy, Luc Giraud, Jean-Yves L’Excellent
3D frequency-domain finite-difference modeling of accoustic wave propagation using a masively parallel direct solver: a feasable study
In : The Society of Exploration Geophysicists (SEG 2006), New Orleans (USA), 01/10/06-06/10/06.
Patrick Amestoy, Iain Duff, Abdou Guermouche, Tzvetomila Slavova
Efficient triangular solution in sparse out-of-core solvers
In : Sparse Days Meeting, CERFACS, Toulouse, 15/06/06-16/06/06.
Patrick Amestoy, Iain Duff, Abdou Guermouche, Tzvetomila Slavova
Efficient triangular solution in sparse out-of-core solvers
In : Sparse Days Meeting, CERFACS, Toulouse, 15/06/06-16/06/06.
Patrick Amestoy, Iain Duff, Abdou Guermouche, Tzvetomila Slavova
Out-of-core Parallel Solution
In : MUMPS Users Day 2006, ENS-Lyon, 24/10/06.
Patrick Amestoy, Michel Daydé, Christophe Hamerling, Marc Pantel, Chiara Puglisi
Management of services based on a semantic description within the GRID-TLSE project
In : VECPAR’06 – Workshop on Computational Grids and Clusters (WCGC 2006), Rio de Janeiro, Brésil, 10/07/06-13/07/06, Springer-Verlag, LNCS 4395, pp. 634-643, July 2006.
Patrick Amestoy, Xiaoye Sherry Li, Stéphane Pralet
Combining Bipartite Quotient Graph and Local Symmetrization in a Fully Unsymmetric Ordering
In : SIAM Annual Meeting, New Orleans, LA, USA, 11/07/05-15/07/05.
Patrick Amestoy, Xiaoye Sherry Li, Stéphane Pralet
Unsymmetric Greedy Orderings for Stable Sparse LU factorization
In : Second International Workshop on Combinatorial Scientific Computing (CSC05), CERFACS, Toulouse, France, 21/06/05-23/06/05.
Marc Pantel, Chiara Puglisi, Patrick Amestoy
Grilles, Composants et Calcul scientifique
In : Rencontre du Parallélisme, Le Croizic, 06/04/05-08/04/05, EMN-ASF, pp. 113-124, April 2005.
Patrick Amestoy, Max Buvry, Michel Daydé, Luc Giraud, Christophe Hamerling, Jean-Yves L’Excellent, Marc Pantel, Chiara Puglisi
The Grid-TLSE Project : Goals and Current Status
In : Workshop Franco-Coréen, IRISA, Rennes, 22/07/04.
Patrick Amestoy, Iain Duff, Luc Giraud, Jean-Yves L’Excellent, Chiara Puglisi
GRID-TLSE: A Web Site for Experimenting with Sparse Direct Solvers on a Computational Grid
In : Conference: SIAM conference on Parallel Processing for Scientific Computing, San Francisco, 25/02/04-27/02/04.
Patrick Amestoy, Abdou Guermouche, Jean-Yves L’Excellent, Stéphane Pralet
Hybrid scheduling for the parallel solution of linear systems
In : International workshop on Parallel Matrix Algorithms and Applications (PMAA’04), Marseille (France), néant, October 2004.
Patrick Amestoy, Xiaoye Sherry Li, Stéphane Pralet
Orderings of unsymmetric matrices based on local heuristics
In : Séminaire du LAMSIN dans le cadre de la chaire UNESCO sur le calcul intensif, ENIT-Tunis (Tunisie), 12/04/04-16/04/04.
Les méthodes directes de résolution en algèbre linéaire creuse
In : Chaire UNESCO sur le calcul numérique intensif, LAMSIN-ENIT Tunis, 12/04/04-16/04/04.
URL : http://www.tn.refer.org/unesco/accueil-unesco-fr.html
BibTeXPatrick Amestoy, Xiaoye Sherry Li, Stéphane Pralet
Unsymmetric orderings using a constrained Markowitz scheme
In : SIAM conference on Parallel Processing for Scientific Computing, Workshop of Combinatorial Scientific Computing, San Francisco (Californie), 27/02/04-28/02/04.
Marc Pantel, Chiara Puglisi, Patrick Amestoy
Approche composant et Calcul numérique
In : Workshop «What have we learned ?», Ecole d’été GRID-Use-2004, Metz, 24/06/04-25/06/04.
URL : http://www.metz.supelec.fr/metz/personnel/vialle/GridUSe2004/index.html
BibTeXPatrick Amestoy, Iain Duff, Stéphane Pralet, Christof Voemel
Task scheduling in an asynchronous distributed memory sparse solver
In : SIAM Annual Meeting, Montreal, Canada, 16/06/03-20/06/03.
Grid-TLSE: A Web expertise site for sparse linear algebra
In : Sparse Days and Grid Computing at St Girons, St Girons, 09/06/03-13/06/03.
Grid-TLSE : un site d’expertise en algèbre linéaire creuse
In : Ecole thématique CNRS: Calcul Distribué, Meta-Computing, Globalisation des Ressources, Aussois (France), 02/12/02-06/12/02.
Patrick Amestoy, Chiara Puglisi
An unsymmetrized multifrontal approach for LU factorization.
In : SIAM Conference on Parallel Processing for Scientific Computing, Portsmouth (Virginia), 12/03/01-14/03/01.
Patrick Amestoy, Jean-Yves L’Excellent, Iain Duff, Xiaoye Sherry Li
Performance and tuning of two distributed memory sparse solvers
In : SIAM Conference on Parallel Processingfor Scientific Computing, Portsmouth (Virginia), 12/03/01-14/03/01, SIAM, Philadelphia, March 2001.
Patrick Amestoy, Iain Duff, Jean-Yves L’Excellent, Xiaoye Sherry Li
Performance Analysis of general sparse solvers for distributed memory computers
In : 7th SIAM conference on Applied Linear Algebra, Raleigh (North Carolina), 23/10/00-25/10/00.
Patrick Amestoy, Xiaoye Sherry Li, Esmond G. Ng
Symmetric minimum priority orderings for sparse unsymmetric factorization
In : 7th SIAM conference on Applied Linear Algebra,, Raleigh (North Carolina), 23/10/00-25/10/00.
Patrick Amestoy, Jean-Xavier Dessa , Georges Pascal
Ocean Bottom Seismometers Data Processing with a Full Waveform Inversion Strategy
In : American Geophysical Union, San-Francisco, 10/12/00-14/12/00.
Patrick Amestoy, Francois Pellegrini, Jean Roman
Hybridizing Nested Dissection and Halo Approximate Minimum Degree for Efficient Sparse Matrix Ordering
In : Proceedings of Irregular’99, Puerto Rico, ., January 1999.
Patrick Amestoy, Iain Duff, Jean-Yves L’Excellent
PARASOL. An Integrated Programming Environment forParallel Sparse Matrix Solvers
In : High-Performance Computing, ., Kluwer Academic/Plenum Publishers, New York, pp. 79-90, January 1999.
Patrick Amestoy, Iain Duff, Jean-Yves L’Excellent, Petr Plechac
Direct solvers in the PARASOL Project
In : Greenwich conference, UK, .
Patrick Amestoy, Iain Duff, Jean-Yves L’Excellent
Parallelisation d’un solveur direct creux pour architectures a memoire distribuee
In : Proceedings de la 3e Ecole d’Informatique des Systemes Paralleles et Repartis, ISYPAR 98, IRIT, Toulouse, .
Patrick Amestoy, Iain Duff, Jean-Yves L’Excellent, Petr Plechac
PARASOL: An Integrated Programming environment for Parallel Sparse Matric Solvers
In : PINEAPL Workshop, A Workshop on the Use of Parallel Numerical Libraries in Industrial End-user Applications, CERFACS, Toulouse, .
Patrick Amestoy, Iain Duff, Jean-Yves L’Excellent
Multifrontal solvers within the PARASOL environment
In : Applied Parallel Computing, PARA’98, ., Lecture Notes in Computer Science, No. 1541,Springer-Verlag, Berlin, pp. 7-11, January 1998.
Patrick Amestoy, Iain Duff, Jean-Yves L’Excellent
A distributed memory multifrontal solver
In : PARASOL Workshop on Sparse matrix solution on distributed architectures, CERFACS, Toulouse, .
Patrick Amestoy, Jean Roman, F Despre, Pierre Ramet
Communication dans la résolution directe de systèmes creux
In : Proceedings de ICaRE’97, Ecole d’Hiver du CNRS sur la Conception et la mise en oeuvre d’applications parallèles irrégulières de grande taille, –, -, December 1997.
Recent progress in parallel multifrontal solvers for unsymmetric sparse matrices
In : Proceedings of the 15th World Congress on Scientific Computation, Modelling and Applied Mathematics, IMACS 97, Berlin, -, January 1997.
Patrick Amestoy, T Davis, Iain Duff, S Hadfield
Parallelism in Multifrontal Methods for Matrices with Unsymmetric Structures
In : 2nd SIAM Conference on Sparse Matrices, Coeur d’Alene, Idaho, .
Patrick Amestoy, T Davis, Iain Duff
The Approximate Minimum Degree algorithm
In : 2nd SIAM Conference on Sparse Matrices, Coeur d’Alene, Idaho, .
Patrick Amestoy, T Davis, Iain Duff, Jean Roman
Preprocessing issues in sparse matrix computations
In : Proceedings of Stratagem’96, Symposium on parallel computing for solving large scale and irregular applications, –, -, pp. 111-127, January 1996.
Multifrontal parallel LU and QR factorizations
In : Workshop on Direct methods, International Linear Algebra Year, Toulouse, .
Algèbre Linéaire Creuse
In : Proceedings de l’Ecole thématique Parallélisme et applications irrégulières, organisée par le CNRS et les Equipes de CAPA, Cauterets, France, Hermès, pp. 135-158, January 1995.
Patrick Amestoy, Alfredo Buttari, Iain Duff, Abdou Guermouche, Jean-Yves L’Excellent, Bora Uçar
MUMPS (MUltifrontal Massively Parallel Solver)
In : Encyclopedia of Parallel Computing. David Padua (Eds.) , Springer, pp. 0-0, August 2011.
URL : http://www.springer.com/computer/swe/book/978-0-387-09765-7
BibTeXPatrick Amestoy, Alfredo Buttari, Iain Duff, Abdou Guermouche, Jean-Yves L’Excellent, Bora Uçar
The multifrontal method
In : Encyclopedia of Parallel Computing. David Padua (Eds.) , Springer, pp. 0-0, August 2011.
URL : http://www.springer.com/computer/swe/book/978-0-387-09765-7
BibTeXPorting Industrial codes on High-Performance Computers and distributed computing using PVM
In : Proceedings of ‘High Performance Computing in Fluid Dynamics’ ERCOFTAC Summerschool. P Amestoy, M Dayde (Eds.) , Kluwer Academic Publishers, pp. 97-144, 1996.
Méthodes directes parallèles de résolution des systèmes creux de grande taille
HDR, Institut National Polytechnique de Toulouse, September 1999.
José Palma, Patrick Amestoy, Michel Daydé, Marta Mattoso, Joao Correia Lopez
High Performance Computing for Computational Science (Revised selected papers of VECPAR 2008), Toulouse- France, 24/06/08 – 27/06/08, Springer-Verlag, LNCS 5336, December 2008.
Patrick Amestoy, Philippe Berger, Michel Daydé, Iain Duff, Valérie Frayssé, Luc Giraud, Daniel Ruiz
Euro-Par’99 Parallel Processing, Proceedings of the 5th International Euro-Par Conference, Toulouse, 31/08/99 – 03/09/99, Lecture Notes in Computer Science, 1685, Springer, Berlin, August 1999.
Matthieu Gerest, Patrick Amestoy, Olivier Boiteau, Alfredo Buttari, Fabienne Jézéquel, Jean-Yves L’Excellent, Théo Mary
Block low-rank compression in mixed precision for the solution of sparse linear systems
Sparse Days conference 2022, Jun 2022, Saint-Girons, France.