Pierre Ramet Pierre RAMET - Responsable du département SATANAS (Supports et Algorithms pour les Applications Numériques Hautes Performances)

Identifiants chercheurs

IdHAL :

pierre-ramet

ORCID :

0000-0002-6179-9819

IdRef :

189029668

Présentation

Ma problématique de recherche concerne les problèmes du calcul haute performance, en particulier l'algèbre linéaire creuse. Je développe la bibliothèque PaStiX (https://solverstack.gitlabpages.inria.fr/pastix) qui implémente un solveur direct creux haute performance.

Publications

Article dans une revue (13)

Toward an Algebraic Multigrid Method for the Indefinite Helmholtz Equation Robert Falgout,Matthieu Lecouvez,Pierre Ramet,Clément Richefort SIAM Journal on Scientific Computing, 2025, pp.S285-S310. ⟨10.1137/24M1672560⟩ Article dans une revue cea-05240268v1
The JOREK non-linear extended MHD code and applications to large-scale instabilities and their control in magnetically confined fusion plasmas Matthias Hoelzl,Guido Huijsmans,Stanislas Pamela,Marina Bécoulet,Eric Nardonet al. Nuclear Fusion, 2021, 61 (6), pp.065001. ⟨10.1088/1741-4326/abf99f⟩ Article dans une revue hal-03352509v1
Efficient Parallel Solution of the 3D Stationary Boltzmann Transport Equation for Diffusive Problems Salli Moustafa,François Févotte,Mathieu Faverge,Laurent Plagne,Pierre Ramet Journal of Computational Physics, 2019, ⟨10.1016/j.jcp.2019.03.019⟩ Article dans une revue hal-02080624v1
Sparse supernodal solver using block low-rank compression: Design, performance and analysis Grégoire Pichon,Eric Darve,Mathieu Faverge,Pierre Ramet,Jean Roman International Journal of Computational Science and Engineering, 2018, 27, pp.255 - 270. ⟨10.1016/J.JOCS.2018.06.007⟩ Article dans une revue hal-01824275v1
Reordering Strategy for Blocking Optimization in Sparse Linear Solvers Grégoire Pichon,Mathieu Faverge,Pierre Ramet,Jean Roman SIAM Journal on Matrix Analysis and Applications, 2017, SIAM Journal on Matrix Analysis and Applications, 38 (1), pp.226 - 248. ⟨10.1137/16M1062454⟩ Article dans une revue hal-01485507v2
Shared Memory Parallelism for 3D Cartesian Discrete Ordinates Solver Salli Moustafa,Ivan Dutka Malen,Laurent Plagne,Angélique Ponçot,Pierre Ramet Annals of Nuclear Energy, 2014, Special Issue SNA+MC 2013, pp.1-10. ⟨10.1016/j.anucene.2014.08.034⟩ Article dans une revue hal-00986975v1
Efficient Parallel Resolution of The Simplified Transport Equations in Mixed-Dual Formulation Maxime Barrault,Bruno Lathuilière,Pierre Ramet,Jean Roman Journal of Computational Physics, 2011, 230 (5), pp.2004-2020. ⟨10.1016/j.jcp.2010.11.047⟩ Article dans une revue hal-00547406v1
Numerical simulation of unsteady MHD flows and applications Remi Abgrall,Pierre Ramet,Robin Huart Magnetohydrodynamics c/c of Magnitnaia Gidrodinamika, 2009, 45 (2), pp.225-232 Article dans une revue hal-00547413v1
Non-linear MHD simulations of edge localized modes (ELMs) G. Huysmans,Stanislas Pamela,Emiel van Der Plas,Pierre Ramet Plasma Physics, 2009, 51 (12), pp.124012 Article dans une revue hal-01251754v1
On finding approximate supernodes for an efficient ILU(k) factorization Pascal Hénon,Pierre Ramet,Jean Roman Parallel Computing, 2008, 34, pp.345--362 Article dans une revue inria-00346018v1
PaStiX: A High-Performance Parallel Direct Solver for Sparse Symmetric Definite Systems Pascal Hénon,Pierre Ramet,Jean Roman Parallel Computing, 2002, 28 (2), pp.301--321 Article dans une revue inria-00346017v1
Scilab to Scilab//, the OURAGAN Project Eddy Caron,Serge Chaumette,Sylvain Contassot-Vivier,Frédéric Desprez,Eric Fleuryet al. Parallel Computing, 2001, 27 (11), pp.1497-1519. ⟨10.1016/S0167-8191(01)00101-6⟩ Article dans une revue istex inria-00000277v1
Parallel Sparse Linear Algebra and Application to Structural Mechanics David Goudin,Pascal Hénon,Francois Pellegrini,Pierre Ramet,Jean Romanet al. Numerical Algorithms, 2000, 24, pp.371--391 Article dans une revue inria-00346016v1

Communication dans un congrès (86)

Algebraic hierarchical partitioning to improve H-matrix compression Dimitri Walther,Mathieu Faverge,Matthieu Lecouvez,Pierre Ramet PP 2026 - SIAM Conference on Parallel Processing for Scientific Computing, SIAM, Mar 2026, Berlin, Germany Communication dans un congrès hal-05411444v1
Scalable and portable LU factorization with partial pivoting on top of runtime systems Alycia Lisito,Mathieu Faverge,Matthieu Kuhn,Florent Pruvost,Pierre Ramet IPDPS25 - 39th IEEE International Parallel and Distributed Processing Symposium, Jun 2025, Milan, Italy Communication dans un congrès hal-04984070v1
Batching the tasks of the LU factorization with partial pivoting on top of runtime systems Alycia Lisito,Mathieu Faverge,Matthieu Kuhn,Florent Pruvost,Pierre Ramet COMPAS 2025 - Conférence francophone d'informatique en Parallélisme, Architecture et Système, Jun 2025, Bordeaux, France Communication dans un congrès hal-05148627v1
Slides 18th CMCIM 2024, Toward an algebraic multigrid method for the indefinite Helmholtz equation Rob Falgout,Matthieu Lecouvez,Pierre Ramet,Clément Richefort 18th Copper Mountain Conference On Iterative Methods, Apr 2024, Frisco (Co), United States Communication dans un congrès cea-04620993v1
Enhancing sparse direct solver scalability through runtime system automatic data partition Alycia Lisito,Mathieu Faverge,Grégoire Pichon,Pierre Ramet WAMTA 2024 - Workshop on Asynchronous Many-Task Systems and Applications 2024, Feb 2024, Knoxville, United States. pp.105-110, ⟨10.1007/978-3-031-61763-8_10⟩ Communication dans un congrès hal-04527103v1
Comparative Study of Mixed-Precision and Low-Rank Compression Techniques in Sparse Direct Solvers Brieuc Nicolas,Mathieu Faverge,Pierre Ramet,Alycia Lisito,Mohamed Kherraz 2024 SIAM Conference on Applied Linear Algebra, Society for Industrial and Applied Mathematics, May 2024, Paris, France Communication dans un congrès hal-04585047v1
New parallel features in the sparse solver PaStiX Alycia Lisito,Mathieu Faverge,Pierre Ramet Sparse Days 2023, Jun 2023, Toulouse, France Communication dans un congrès hal-04589448v1
Student Paper Competition, Copper Mountain Conference 2023 - Toward a multilevel method for the Helmholtz equation Clément Richefort,Matthieu Lecouvez,Robert Falgout,Pierre Ramet 21st SIAM Copper Mountain Conference on Multigrid Method, Apr 2023, Copper Mountain, CO, United States Communication dans un congrès hal-04046622v1
Slides, SIAM CSE 2023 - Toward a multilevel method for the Helmholtz Equation Robert Falgout,Matthieu Lecouvez,Pierre Ramet,Clément Richefort CSE 2023 - SIAM Conference on Computational Science and Engineering, Feb 2023, Amsterdam, Netherlands Communication dans un congrès hal-04046630v1
Deciding Non-Compressible Blocks in Sparse Direct Solvers using Incomplete Factorization Esragul Korkmaz,Mathieu Faverge,Grégoire Pichon,Pierre Ramet HiPC 2021 - 28th IEEE International Conference on High Performance Computing, Data, and Analytics, Dec 2021, Bangalore, India. pp.1-10, ⟨10.1109/HiPC53243.2021.00024⟩ Communication dans un congrès hal-03361299v1
Improving mapping for sparse direct solvers: A trade-off between data locality and load balancing Changjiang Gou,Ali Al Zoobi,Anne Benoit,Mathieu Faverge,Loris Marchalet al. EuroPar 2020 - 26th International European Conference on Parallel and Distributed Computing, Aug 2020, Warsaw / Virtual, Poland. pp.1-16 Communication dans un congrès hal-02973315v1
Recent Developments Around the Block Low-Rank PaStiX Solver Grégoire Pichon,Mathieu Faverge,Pierre Ramet PP 2020 - SIAM Conference on Parallel Processing for Scientific Computing, Feb 2020, Seattle, United States Communication dans un congrès hal-03140189v1
Block Low-rank Algebraic Clustering for Sparse Direct Solvers Grégoire Pichon,Eric Darve,Mathieu Faverge,Pierre Ramet,Jean Roman SIAM Conference on Computational Science and Engineering (CSE19), Feb 2019, Spokane, United States Communication dans un congrès hal-01956962v1
Rank Revealing QR Methods for Sparse Block Low Rank Solvers Esragul Korkmaz,Mathieu Faverge,Grégoire Pichon,Pierre Ramet Sparse Days 2019, Jul 2019, Toulouse, France Communication dans un congrès hal-02326070v1
Block Low Rank Algebraic Clustering for Sparse Direct Solvers Pierre Ramet Journées Ondes Sud-Ouest (JOSO), Mar 2019, Le Barp, France Communication dans un congrès hal-02139186v1
Rank Revealing QR Methods for Sparse Block Low Rank Solvers Esragul Korkmaz,Mathieu Faverge,Grégoire Pichon,Pierre Ramet COMPAS 2019 - Conférence d'informatique en Parallélisme, Architecture et Système, Jun 2019, Anglet, France Communication dans un congrès hal-02326084v1
Exploiting Parameterized Task-graph in Sparse Direct Solvers Mathieu Faverge,Grégoire Pichon,Pierre Ramet SIAM Conference on Computational Science and Engineering (CSE19), Feb 2019, Spokane, United States Communication dans un congrès hal-01956963v1
Utilisation de la compression Block Low-Rank pour accélérer un solveur direct creux supernodal Grégoire Pichon,Eric Darve,Mathieu Faverge,Pierre Ramet,Jean Roman COMPAS 2018 - Conférence d'informatique en Parallélisme, Architecture et Système, Jul 2018, Toulouse, France Communication dans un congrès hal-01956959v1
Supernodes ordering to enhance Block Low-Rank compression in sparse direct solvers Grégoire Pichon,Eric Darve,Mathieu Faverge,Pierre Ramet,Jean Roman PMAA 2018 - 10th International Workshop on Parallel Matrix Algorithms and Applications, Jun 2018, Zurich, Switzerland Communication dans un congrès hal-01956960v1
Sparse Supernodal Solver Using Block Low-Rank Compression Grégoire Pichon,Eric Darve,Mathieu Faverge,Pierre Ramet,Jean Roman 18th IEEE International Workshop on Parallel and Distributed Scientific and Engineering Computing (PDSEC 2017), Jun 2017, Orlando, United States Communication dans un congrès hal-01502215v1
Sparse Supernodal Solver Using Hierarchical Compression over Runtime System Grégoire Pichon,Eric Darve,Mathieu Faverge,Pierre Ramet,Jean Roman SIAM Conference on Computation Science and Engineering (CSE'17), Feb 2017, Atlanta, United States Communication dans un congrès hal-01421379v1
Sparse Supernodal Solver exploiting Low-Rankness Property Grégoire Pichon,Eric Darve,Mathieu Faverge,Pierre Ramet,Jean Roman Sparse Days 2017, Sep 2017, Toulouse, France Communication dans un congrès hal-01585622v1
Impact of Blocking Strategies for Sparse Direct Solvers on Top of Generic Runtimes Grégoire Pichon,Mathieu Faverge,Pierre Ramet,Jean Roman SIAM Conference on Computation Science and Engineering (CSE'17), Feb 2017, Atlanta, United States Communication dans un congrès hal-01421384v1
Exploiting Modern Manycore Architecture in Sparse Direct Solver with Runtime Systems Grégoire Pichon,Mathieu Faverge,Pierre Ramet SIAM Conference on Computation Science and Engineering (CSE'17), Feb 2017, Atlanta, United States Communication dans un congrès hal-01421383v1
Exploiting H-Matrices in Sparse Direct Solvers Grégoire Pichon,Eric Darve,Mathieu Faverge,Pierre Ramet,Jean Roman SIAM Conference on Parallel Processing for Scientific Computing (SIAM PP 2016), Apr 2016, Paris, France Communication dans un congrès hal-01251812v1
Impact of Blocking Strategies for Sparse Direct Solvers on Top of Generic Runtimes Grégoire Pichon,Mathieu Faverge,Pierre Ramet,Jean Roman SIAM Conference on Parallel Processing for Scientific Computing (SIAM PP 2016), Apr 2016, Paris, France Communication dans un congrès hal-01251808v1
Sparse Supernodal Solver Using Hierarchical Compression Grégoire Pichon,Eric Darve,Mathieu Faverge,Pierre Ramet,Jean Roman Workshop on Fast Direct Solvers, Nov 2016, Purdue, United States Communication dans un congrès hal-01421368v1
On the use of low rank approximations for sparse direct solvers Grégoire Pichon,Eric Darve,Mathieu Faverge,Pierre Ramet,Jean Roman SIAM Annual Meeting (AN'16), Jul 2016, Boston, United States Communication dans un congrès hal-01421376v1
Exploiting Kepler architecture in sparse direct solver with runtime systems Mathieu Faverge,Grégoire Pichon,Pierre Ramet 9th International Workshop on Parallel Matrix Algorithms and Applications (PMAA'2016), Jul 2016, Bordeaux, France Communication dans un congrès hal-01421372v1
3D Cartesian Transport Sweep for Massively Parallel Architectures with PARSEC Salli Moustafa,Mathieu Faverge,Laurent Plagne,Pierre Ramet IEEE International Parallel & Distributed Processing Symposium (IPDPS 2015), May 2015, Hyderabad, India. pp.581-590, ⟨10.1109/IPDPS.2015.75⟩ Communication dans un congrès hal-01078362v1
Towards a recursive graph bipartitioning algorithm for well balanced domain decomposition Astrid Casadei,Pierre Ramet,Jean Roman SIAM Conference on Computational Science and Engineering (SIAM CSE 2015), Mar 2015, Salt Lake City, United States Communication dans un congrès hal-01100985v1
Blocking strategy optimizations for sparse direct linear solver on heterogeneous architectures Mathieu Faverge,Grégoire Pichon,Pierre Ramet,Jean Roman Sparse Days, Jun 2015, Saint Girons, France Communication dans un congrès hal-01187881v1
Towards a recursive graph bipartitioning algorithm for well balanced domain decomposition Astrid Casadei,Pierre Ramet,Jean Roman Mini-Symposium on "Combinatorial Issues in Sparse Matrix Computation" at ICIAM'15 conference, Aug 2015, Beijing, China Communication dans un congrès hal-01100990v1
On the use of H-Matrix Arithmetic in PaStiX: a Preliminary Study Mathieu Faverge,Grégoire Pichon,Pierre Ramet,Jean Roman Workshop on Fast Direct Solvers, Jun 2015, Toulouse, France Communication dans un congrès hal-01187882v1
On the design of parallel linear solvers for large scale problems Xavier Lacoste,Mathieu Faverge,Pierre Ramet Mini-Symposium on Recent advances in matrix computations for extreme-scale computers at ICIAM'15 conference, Aug 2015, Beijing, China Communication dans un congrès hal-01100987v1
A task-based sparse direct solver suited for large scale hierarchical/heterogeneous architectures Xavier Lacoste,Mathieu Faverge,Pierre Ramet SIAM Conference on Computational Science and Engineering (SIAM CSE 2015), Mar 2015, Salt Lake City, United States Communication dans un congrès hal-01100979v1
Nested dissection with balanced halo Astrid Casadei,Pierre Ramet,Jean Roman Sixth SIAM Workshop on Combinatorial Scientific Computing, Jul 2014, Lyon, France Communication dans un congrès hal-00987099v1
Parallel 3D Sweep Kernel with PARSEC Salli Moustafa,Mathieu Faverge,Laurent Plagne,Pierre Ramet HPCC Workshop on HPC-CFD in Energy/Transport Domains, Aug 2014, Paris, France Communication dans un congrès hal-01078364v1
Taking advantage of hybrid systems for sparse direct solvers via task-based runtimes Xavier Lacoste,Mathieu Faverge,Pierre Ramet,Samuel Thibault,George Bosilca HCW'2014 workshop of IPDPS, May 2014, Phoenix, United States. pp.29-38, ⟨10.1109/IPDPSW.2014.9⟩ Communication dans un congrès hal-00987094v1
Toward parallel scalable linear solvers suited for large scale hierarchical parallel platforms Emmanuel Agullo,Mathieu Faverge,Luc Giraud,Abdou Guermouche,Pierre Rametet al. World Congress on Computational Mechanics, Jul 2014, Barcelona, Spain Communication dans un congrès hal-00987110v1
An improved recursive graph bipartitioning algorithm for well balanced domain decomposition Astrid Casadei,Pierre Ramet,Jean Roman IEEE International Conference on High Performance Computing (HiPC 2014), Dec 2014, Goa, India. pp.1-10, ⟨10.1109/HiPC.2014.7116878⟩ Communication dans un congrès hal-01100962v1
Shared Memory Parallelism for 3D Cartesian Discrete Ordinates Solver Salli Moustafa,Ivan Dutka Malen,Laurent Plagne,Angélique Ponçot,Pierre Ramet Joint International Conference on Supercomputing in Nuclear Applications and Monte Carlo 2013, Oct 2013, Paris, France Communication dans un congrès hal-00924989v2
From hybrid architectures to hybrid solvers Pierre Ramet Workshop Celebrating 40 Years of Nested Dissection, Jul 2013, Waterloo, Canada Communication dans un congrès hal-00924979v1
Towards Domain Decomposition with Balanced Halo Astrid Casadei,Luc Giraud,Pierre Ramet,Jean Roman Workshop Celebrating 40 Years of Nested Dissection, Jul 2013, Waterloo, Canada Communication dans un congrès hal-00924977v1
Sparse direct solver on top of large-scale multicore systems with GPU accelerators Xavier Lacoste,Pierre Ramet SIAM Conference on Applied Linear Algebra (SIAM LA 2012), Jun 2012, Valence, Spain Communication dans un congrès hal-00769027v1
Fine Grain Scheduling for Sparse Solver on Manycore Architectures Mathieu Faverge,Pierre Ramet SIAM Conference on Parallel Processing for Scientific Computing (SIAM PP 2012), Feb 2012, Savannah, United States Communication dans un congrès hal-00769026v1
Toward a supernodal sparse direct solver over DAG runtimes George Bosilca,Mathieu Faverge,Xavier Lacoste,Ichitaro Yamazaki,Pierre Ramet Parallel Matrix Algorithms and Applications, Jun 2012, Londres, United Kingdom Communication dans un congrès hal-00769030v1
Memory Optimization to Build a Schur Complement Astrid Casadei,Pierre Ramet SIAM Conference on Applied Linear Algebra (SIAM LA 2012), Jun 2012, Valence, Spain Communication dans un congrès hal-00769029v1
Development of an International Matrix-Solver Prediction System on a French-Japanese International Grid Computing Environment Michel Daydé,Yoshio Suzuki,Noriyuki Kushida,Takayuki Tatekawa,Naoya Teshimaet al. Joint International Conference on Supercomputing in Nuclear Applications and Monte Carlo 2010 (SNA+MC2010 2010), Oct 2010, Tokyo (JP), Japan Communication dans un congrès hal-04614671v1
A Non Overlapping Parallel Domain Decomposition Method Applied to The Simplified Transport Equations Maxime Barrault,Bruno Lathuilière,Pierre Ramet,Jean Roman International Conference on Mathematics, Computational Methods & Reactor Physics, 2009, New-York, United States Communication dans un congrès inria-00346020v1
Non-Linear MHD simulations of Edge Localised Modes G. Huysmans,Stanislas Pamela,Emiel van Der Plas,Pierre Ramet 36th EPS Plasma Physics Conference, Jun 2009, Sofia, Bulgaria Communication dans un congrès inria-00403797v1
A domain decomposition method applied to the simplified transport equations Maxime Barrault,Bruno Lathuilière,Pierre Ramet,Jean Roman IEEE 11th International Conference on Computational Science and Engineering, 2008, Sao Paulo, Brazil. pp.91--97 Communication dans un congrès inria-00346022v1
A NUMA Aware Scheduler for a Parallel Sparse Direct Solver Mathieu Faverge,Xavier Lacoste,Pierre Ramet PMAA'08, 2008, Neuchâtel, Switzerland Communication dans un congrès inria-00344709v1
Toward an international sparse linear algebra expert system by interconnecting the ITBL computational Grid with the Grid-TLSE platform Noriyuki Kushida,Yoshio Suzuki,Naoya Teshima,Norihiro Nakajima,Yves Caniouet al. VECPAR 2008: 8th International Conference High Performance Computing for Computational Science, Jun 2008, Toulouse, France Communication dans un congrès hal-00689964v1
Dynamic Scheduling for sparse direct Solver on NUMA architectures Mathieu Faverge,Pierre Ramet PARA'08, May 2008, Trondheim, Norway Communication dans un congrès inria-00344026v1
A domain decomposition method for the resolution of an eigenvalue problem in neutron physics Maxime Barrault,Bruno Lathuilière,Pierre Ramet,Jean Roman International Symposium on Iterative Methods in Scientific Computing (IMACS), 2008, Lille, France Communication dans un congrès inria-00346021v1
A Domain Decomposition Method Applied to Large Eigenvalue Problems in Neutron Physics Maxime Barrault,Bruno Lathuilière,Pierre Ramet,Jean Roman PMAA'08, 2008, Neuchatel, Switzerland Communication dans un congrès inria-00346025v1
Tunable parallel experiments in a GridRPC framework: application to linear solvers Yves Caniou,Jean-Sebastien Gay,Pierre Ramet VECPAR'08, 2008, Toulouse, France. pp.46--52 Communication dans un congrès inria-00346611v1
A NUMA Aware Scheduler for a Parallel Sparse Direct Solver Mathieu Faverge,Pierre Ramet Workshop on Massively Multiprocessor and Multicore Computers, INRIA, Feb 2009, Rocquencourt, France. 5p Communication dans un congrès inria-00416502v1
Improvement of existing solvers for the simulation of MHD instabilities Olivier Czarny,Pascal Hénon,Pierre Ramet,G. Huysmans Numerical flow models for controlled fusion, 2007, Porquerolles, France Communication dans un congrès inria-00346027v1
Efficient solution technique for low Mach number compressible multiphase problems Benjamin Braconnier,Boniface Nkonga,Mickael Papin,Pierre Ramet,Mario Ricchiutoet al. PMAA'06, 2006, Rennes, France Communication dans un congrès inria-00346608v1
On finding approximate supernodes for an efficient ILU(k) factorization Pascal Hénon,Pierre Ramet,Jean Roman PMAA'06, 2006, Rennes, France Communication dans un congrès inria-00346617v1
Partitioning and Blocking Issues for a Parallel Incomplete Factorization Pascal Hénon,Pierre Ramet,Jean Roman PARA'06, 2006, Umea, Sweden. pp.929--937 Communication dans un congrès inria-00346624v1
On using an hybrid MPI-Thread programming for the implementation of a parallel sparse direct solver on a network of SMP nodes Pascal Hénon,Pierre Ramet,Jean Roman Sixth International Conference on Parallel Processing and Applied Mathematics, Workshop HPC Linear Algebra, 2005, Poznan, Poland. pp.1050--1057 Communication dans un congrès inria-00346610v1
Blocking Issues for an Efficient Parallel Block ILU Preconditioner Pascal Hénon,Francois Pellegrini,Pierre Ramet,Jean Roman International SIAM Conference On Preconditioning Techniques For Large Sparse Matrix Problems In Scientific And Industrial Applications, 2005, Atlanta, United States Communication dans un congrès inria-00346621v1
A Blockwise Algorithm for Parallel Incomplete Cholesky Factorization Pascal Hénon,Pierre Ramet,Jean Roman PMAA'04, 2004, Marseille, France Communication dans un congrès inria-00346616v1
Applying parallel direct solver skills to build robust and highly performant preconditioners Pascal Hénon,Francois Pellegrini,Pierre Ramet,Jean Roman,Yousef Saad PARA'04, 2004, Copenhagen, Denmark. pp.601--619 Communication dans un congrès inria-00346623v1
Using of the High Performance Sparse Solver PaStiX for the Complex Multiscale 3D Simulations performed by the FluidBox Fluid Mechanics Software Pascal Hénon,Boniface Nkonga,Pierre Ramet,Jean Roman PMAA'04, 2004, Marseille, France Communication dans un congrès inria-00346607v1
High Performance Complete and Incomplete Factorizations for Very Large Sparse Systems by using Scotch and PaStiX softwares Pascal Hénon,Francois Pellegrini,Pierre Ramet,Jean Roman,Yousef Saad Eleventh SIAM Conference on Parallel Processing for Scientific Computing, 2004, San Francisco, United States Communication dans un congrès inria-00346622v1
Efficient algorithms for direct resolution of large sparse system on clusters of SMP nodes Pascal Hénon,Pierre Ramet,Jean Roman SIAM Conference on Applied Linear Algebra, 2003, Williamsburg, United States Communication dans un congrès inria-00346609v1
Towards High Performance Hybrid Direct-Iterative Solvers for Large Sparse Systems Pascal Hénon,Francois Pellegrini,Pierre Ramet,Jean Roman International SIAM Conference On Preconditioning Techniques For Large Sparse Matrix Problems In Scientific And Industrial Applications, 2003, Napa Valley, United States Communication dans un congrès inria-00346620v1
Asymptotically optimal algorithm for Laplace task graphs on heterogeneous platforms Olivier Beaumont,Pierre Ramet,Jean Roman Fifth International Conference on Parallel Processing and Applied Mathematics, Workshop HeteroPar, 2003, Czestochowa, Poland. pp.880--887 Communication dans un congrès inria-00346587v1
Parallel factorization of very large sparse SPD systems on a network of SMP nodes Pascal Hénon,Pierre Ramet,Jean Roman PMAA'02, 2002, Neuchatel, Switzerland Communication dans un congrès inria-00346605v1
Optimisation de l'occupation mémoire pour un solveur parallèle creux direct hautes performances de type supernodal Pascal Hénon,Pierre Ramet RenPar'2002, 2002, Hamamet, Tunisie Communication dans un congrès inria-00346596v1
Modélisation de pipelines hétérogènes Olivier Beaumont,Vincent Boudet,Frédéric Desprez,Pierre Ramet,Jean Romanet al. GRID'2002, 2002, Aussois, France Communication dans un congrès inria-00346586v1
PaStiX: A Parallel Direct Solver for Sparse SPD Matrices based on Efficient Static Scheduling and Memory Managment Pascal Hénon,Pierre Ramet,Jean Roman Tenth SIAM Conference on Parallel Processing for Scientific Computing, 2001, Portsmouth, United States Communication dans un congrès inria-00346598v1
PaStiX: Un solveur parallèle direct pour des matrices creuses symétriques définies positives basé sur un ordonnancement statique performant et sur une gestion mémoire efficace Pascal Hénon,Pierre Ramet RenPar'2001, 2001, Paris, France Communication dans un congrès inria-00346595v1
Algèbre Linéaire Creuse Hautes Performances : Application à la Mécanique des Structures David Goudin,Pascal Hénon,Francois Pellegrini,Pierre Ramet,Jean Romanet al. iHPerf'2000, 2000, Aussois, France Communication dans un congrès inria-00346604v1
PaStiX: A Parallel Sparse Direct Solver Based on a Static Scheduling for Mixed 1D/2D Block Distributions Pascal Hénon,Pierre Ramet,Jean Roman Irregular'2000 workshop of IPDPS, 2000, Cancun, Mexico. pp.519-525 Communication dans un congrès inria-00346594v1
Description of the EMILIO Software Processing Chain and Application to Structural Mechanics David Goudin,Pascal Hénon,Francois Pellegrini,Pierre Ramet,Jean Romanet al. PMAA'2K, 2000, Neuchatel, Switzerland Communication dans un congrès inria-00346601v1
PaStiX: A High-Performance Parallel Direct Solver for Sparse Symmetric Definite Systems Pascal Hénon,Pierre Ramet,Jean Roman PMAA'2K, 2000, Neuchatel, Switzerland Communication dans un congrès inria-00346600v1
A Mapping and Scheduling Algorithm for Parallel Sparse Fan-In Numerical Factorization Pascal Hénon,Pierre Ramet,Jean Roman EuroPar'99, 1999, Toulouse, France. pp.1059-1067 Communication dans un congrès inria-00346593v1
Optimisation des Communications et Régulation de Charge pour la Résolution par Méthode Directe de Grands Systèmes Linéaires Creux Patrick Amestoy,Frédéric Desprez,Pierre Ramet,Jean Roman ICaRE'97, 1997, Aussois, France. pp.467-488 Communication dans un congrès inria-00346472v1
Calcul de la suite optimale de taille de paquets pour la factorisation de Cholesky Pierre Ramet RenPar'9, 1997, Lausanne, Suisse. pp.111-114 Communication dans un congrès inria-00346581v1
Optimal Grain Size Computation for Pipelined Algorithms Frédéric Desprez,Pierre Ramet,Jean Roman Euro-Par'96, 1996, Lyon, France. pp.165-172 Communication dans un congrès inria-00346485v1
Calcul de la taille optimale des paquets pour les algorithmes macro-pipelines Pierre Ramet RenPar'8, 1996, Bordeaux, France. pp.21-24 Communication dans un congrès inria-00346477v1

Poster de conférence (2)

Partitionnement hiérarchique pour la simulation électromagnétique d'objets 3D complexes Dimitri Walther,Mathieu Faverge,Matthieu Lecouvez,Pierre Ramet COMPAS 2025 - Conférence francophone d'informatique en Parallélisme, Architecture et Système, Jun 2025, Bordeaux, France. Poster de conférence cea-05132586v1
Scalable and Portable LU Factorization with Partial Pivoting on top of Runtime Systems Alycia Lisito,Mathieu Faverge,David Goudin,Matthieu Kuhn,Pierre Ramet JCAD 2024 - journée calculs et données, Nov 2024, Bordeaux, France Poster de conférence hal-04867213v1

Document associé à des manifestations scientifiques (3)

Sparse supernodal solver using block low-rank compression: Design, performance and analysis Grégoire Pichon,Eric Darve,Mathieu Faverge,Esragul Korkmaz,Pierre Rametet al. JOREK development meeting, Nov 2019, Cadarache, France Document associé à des manifestations scientifiques hal-02326407v1
Utilisation de la compression low-rank pour réduire la complexité du solveur PaStiX Grégoire Pichon,Mathieu Faverge,Pierre Ramet,Jean Roman JCAD 2018 - Journées Calcul et Données, Oct 2018, Lyon, France Document associé à des manifestations scientifiques hal-01956928v1
Sparse supernodal solver with low-rank compression for solving the frequency-domain Maxwell equations discretized by a high order HDG method Grégoire Pichon,Eric Darve,Mathieu Faverge,Stéphane Lanteri,Pierre Rametet al. Journées jeunes chercheur-e-s - Résolution de problèmes d’ondes harmoniques de grande taille, Nov 2017, PARIS, France. pp.1-55, 2017 Document associé à des manifestations scientifiques hal-01660653v1

Chapitre d'ouvrage (1)

Deflation and augmentation techniques in Krylov linear solvers Olivier Coulaud,Luc Giraud,Pierre Ramet,Xavier Vasseur Topping, B.H.V and Ivanyi, P. Developments in Parallel - Distributed - Grid and Cloud Computing for Engineering, Saxe-Coburg Publications, pp.249--275, 2013, 978-1-874672-62-3 Chapitre d'ouvrage hal-00860339v1

Pré-publication, Document de travail (1)

Toward an algebraic multigrid method for the indefinite Helmholtz equation Robert D Falgout,Matthieu Lecouvez,Pierre Ramet,Clément Richefort 2024 Pré-publication, Document de travail cea-04620991v2

Rapport (21)

Reaching the Quality of SVD for Low-Rank Compression Through QR Variants Esragul Korkmaz,Mathieu Faverge,Grégoire Pichon,Pierre Ramet [Research Report] RR-9476, Inria Bordeaux - Sud Ouest. 2022, pp.43 Rapport (rapport de recherche) hal-03718312v4
Deciding Non-Compressible Blocks in Sparse Direct Solvers using Incomplete Factorization Esragul Korkmaz,Mathieu Faverge,Grégoire Pichon,Pierre Ramet [Research Report] RR-9396, Inria Bordeaux - Sud Ouest. 2021, pp.16 Rapport (rapport de recherche) hal-03152932v2
Improving mapping for sparse direct solvers: A trade-off between data locality and load balancing Changjiang Gou,Ali Al Zoobi,Anne Benoit,Mathieu Faverge,Loris Marchalet al. [Research Report] RR-9328, Inria Rhône-Alpes. 2020, pp.21 Rapport (rapport de recherche) hal-02491495v1
A hierarchical fast direct solver for distributed memory machines with manycore nodes Cédric Augonnet,David Goudin,Matthieu Kuhn,Xavier Lacoste,Raymond Namystet al. [Research Report] CEA/DAM; Total E&P; Université de Bordeaux. 2019 Rapport (rapport de recherche) cea-02304706v1
Supernodes ordering to enhance Block Low-Rank compression in sparse direct solvers Grégoire Pichon,Eric Darve,Mathieu Faverge,Pierre Ramet,Jean Roman [Research Report] RR-9238, Inria Bordeaux Sud-Ouest. 2018, pp.1-31 Rapport (rapport de recherche) hal-01961675v1
Sparse Supernodal Solver Using Block Low-Rank Compression Grégoire Pichon,Eric Darve,Mathieu Faverge,Pierre Ramet,Jean Roman [Research Report] RR-9022, Inria Bordeaux Sud-Ouest. 2017, pp.24 Rapport (rapport de recherche) hal-01450732v3
Efficient Parallel Solution of the 3D Stationary Boltzmann Transport Equation for Diffusive Problems Salli Moustafa,François Févotte,Mathieu Faverge,Laurent Plagne,Pierre Ramet [Research Report] RR-9116, Inria; EDF Lab. 2017, pp.22 Rapport (rapport de recherche) hal-01630208v2
Sparse Supernodal Solver Using Block Low-Rank Compression: design, performance and analysis Grégoire Pichon,Eric Darve,Mathieu Faverge,Pierre Ramet,Jean Roman [Research Report] RR-9130, Inria Bordeaux Sud-Ouest. 2017, pp.1-32 Rapport (rapport de recherche) hal-01660665v1
Reordering strategy for blocking optimization in sparse linear solvers Grégoire Pichon,Mathieu Faverge,Pierre Ramet,Jean Roman [Research Report] RR-8860, Inria Bordeaux Sud-Ouest; LaBRI - Laboratoire Bordelais de Recherche en Informatique; Bordeaux INP; Université de Bordeaux. 2016, pp.26 Rapport (rapport de recherche) hal-01276746v2
Simul'Elec and PASTIX interface specifications Maher Alaya,Mathieu Faverge,Xavier Lacoste,Alexandre Péré-Laperne,Jacques Péré-Laperneet al. [Rapport Technique] RT-0458, INRIA Bordeaux; AlgoTech; INRIA. 2015 Rapport (rapport technique) hal-01142204v1
Taking advantage of hybrid systems for sparse direct solvers via task-based runtimes Xavier Lacoste,Mathieu Faverge,Pierre Ramet,Samuel Thibault,George Bosilca [Research Report] RR-8446, INRIA. 2014, pp.25 Rapport (rapport de recherche) hal-00925017v2
Amélioration du comportement numérique des solveurs en prenant en compte les poids de la matrice lors de la décomposition de domaines Sébastien Fourestier,François Pellegrini,Pierre Ramet [Rapport Technique] RT-0445, INRIA. 2014, pp.58 Rapport (rapport technique) hal-00967676v1
Adaptive mesh refinement for numerical simulation of MHD instabilities in tokamaks: JOREK code Hocine Sellama,Guido Huijsmans,Pierre Ramet [Research Report] RR-8635, INRIA Bordeaux; INRIA. 2014, pp.18 Rapport (rapport de recherche) hal-01088094v1
An improved recursive graph bipartitioning algorithm for well balanced domain decomposition Astrid Casadei,Pierre Ramet,Jean Roman [Research Report] RR-8582, INRIA. 2014, pp.29 Rapport (rapport de recherche) hal-01056749v1
Deflation and augmentation techniques in Krylov linear solvers Olivier Coulaud,Luc Giraud,Pierre Ramet,Xavier Vasseur [Research Report] RR-8265, INRIA. 2013, 25 p Rapport (rapport de recherche) hal-00803225v1
Non regression testing for the JOREK code Guillaume Latu,Marina Becoulet,Guilhem Dif-Pradalier,Virginie Grandgirard,Matthias Hoelzlet al. [Research Report] RR-8134, INRIA. 2012, pp.17 Rapport (rapport de recherche) hal-00752270v1
Sparse direct solvers with accelerators over DAG runtimes Xavier Lacoste,Pierre Ramet,Mathieu Faverge,Yamazaki Ichitaro,Jack Dongarra [Research Report] RR-7972, INRIA. 2012, pp.11 Rapport (rapport de recherche) hal-00700066v2
Memory Optimization to Build a Schur Complement in an Hybrid Solver Astrid Casadei,Pierre Ramet [Research Report] RR-7971, INRIA. 2012, pp.11 Rapport (rapport de recherche) hal-00700053v2
A NUMA Aware Scheduler for a Parallel Sparse Direct Solver Mathieu Faverge,Xavier Lacoste,Pierre Ramet [Research Report] RR-7498, INRIA. 2010, pp.22 Rapport (rapport de recherche) inria-00549827v1
SCILAB to SCILAB// - The Ouragan Project Eddy Caron,Serge Chaumette,Sylvain Contassot-Vivier,Frédéric Desprez,Eric Fleuryet al. [Research Report] RR-2001-24, LIP - ENS Lyon. 2001 Rapport (rapport de recherche) hal-01436419v1
SCILAB to SCILAB// - The Ouragan Project Frédéric Desprez,Martin Quinson,Frédéric Suter,Eric Fleury,Emmanuel Jeannotet al. [Research Report] RR-4203, INRIA. 2001 Rapport (rapport de recherche) inria-00072419v1

HDR (1)

Heterogeneous architectures, Hybrid methods, Hierarchical matrices for Sparse Linear Solvers Pierre Ramet Distributed, Parallel, and Cluster Computing [cs.DC]. Université de Bordeaux, 2017 HDR tel-01668740v2