Luc Giraud

Publications

Communication dans un congrès (77)

Low-Rank Tensor-Accelerated Adjoint-Based Topology Optimization Using Volume Integral Methods Amine El Mehdi Zekri,Sophie Michel,Jean-René Poirier,Luc Giraud,Olivier Coulaudet al. SCEE 2026 - 16th international conference on Scientific Computing in Electrical Engineering, May 2026, Lisbon, Portugal Communication dans un congrès hal-05569054v1
A journey through some numerical linear algebra algorithms with variable accuracy storage Luc Giraud,Emmanuel Agullo,Olivier Coulaud,Martina Iannacito,Mohammad Issaet al. CAS-ANLA 2025 - The Chinese Academy of Sciences Workshop on Approximate computing in Numerical Linear Algebra, Apr 2025, Beijing, China Communication dans un congrès hal-05049142v1
Tensor Train-Based Approach for the Magnetic Moment Method Amine El Mehdi Zekri,Olivier Coulaud,Luc Giraud,Jean-René Poirier Compumag 2025 - 25th International Conference on the Computation of Electromagnetic Fields, Jun 2025, Naples, Italy Communication dans un congrès hal-05291496v1
Scalable Domain Decomposition Methods for Large Sparse Linear Systems on Modern Architectures Stojce Nakov,Emmanuel Agullo,Alfredo Buttari,Luc Giraud,Gilles Marait COMPAS 2025 - Conférence francophone d'informatique en Parallélisme, Architecture et Système, Jun 2025, Bordeaux, France Communication dans un congrès hal-05248772v1
Scalable Domain Decomposition Methods for Large Sparse Linear Systems on Modern Architectures Stojce Nakov,Emmanuel Agullo,Alfredo Buttari,Luc Giraud,Gilles Marait Sparse Days 2025, Jun 2025, Toulouse, France Communication dans un congrès hal-05248757v1
Sparse Matrix Ordering for Fine Grain Parallel Triangular Solve Using SIMD Aboul-Karim Mohamed El Maarouf,Luc Giraud,Abdou Guermouche,Thomas Guignon PPAM 2024 - 15th International Conference on Parallel Processing & Applied Mathematics, Czestochowa University of Technology; Technical University of Ostrava, Sep 2024, Ostrava, Czech Republic. pp.51-64, ⟨10.1007/978-3-031-85697-6_4⟩ Communication dans un congrès hal-05185404v1
Practical stopping criteria for GMRES Alexandre Malhéné,Emmanuel Agullo,Luc Giraud,Miroslav Rozloznik Sparse Days meeting 2025, Jun 2025, Toulouse, France Communication dans un congrès hal-05200599v1
Convolution neural operator preconditioning for the solution of some heterogeneous PDES Yanfei Xiang,Luc Giraud DTE - AICOMAS 2025 - Digital Twins in Engineering & Artificial Intelligence and Computational Methods in Applied Science, Kenjiro Terada, John Dolbow, Ferdinando Auricchio, Harald van Brummelen, Dominique Baillargeat, Charbel Farhat, Georges Karniadakis, Stefan Kollmannsberger, Trond Kvamsdal, Vissarion Papadopoulos, Ruben Sevilla, Feb 2025, Paris, France Communication dans un congrès hal-04961884v1
Neural operator preconditioning for accelerating the solution of the parametric Helmholtz equations Yanfei Xiang,Luc Giraud,Paul Mycek,Maksym Shpakovych,Carola Kruse 2024 SIAM Conference on Applied Linear Algebra (SIAM LA24), Laura Grigori, Daniel Kressner, May 2024, Paris, France. pp.2 Communication dans un congrès hal-04581208v4
A journey on subspace methods for the solution of sequences of linear systems Luc Giraud,Emmanuel Agullo,Olivier Coulaud,Martina Iannacito,Gilles Maraitet al. International conference on Mathematics and decision 2024, Mohammed VI Polytechnic University, Dec 2024, Rabat, Morocco Communication dans un congrès hal-04854993v1
Orthogonalization schemes in tensor train format Martina Iannacito,Olivier Coulaud,Luc Giraud SIAM Conference on Applied Linear Algebra (LA24), Laura Grigori; Daniel Kressner, May 2024, Paris, France Communication dans un congrès hal-04587668v1
Hybridization of Machine Learning and Numerical Linear Algebra Techniques for Scientific Computing: Learned Minimum Residual Solvers for the Helmholtz Equations Yanfei Xiang,Luc Giraud,Paul Mycek,Carola Kruse CSE 2023 - SIAM Conference on Computational Science and Engineering, RAI Congress Centre | Amsterdam, The Netherlands; SIAM, Feb 2023, Amsterdam, Netherlands Communication dans un congrès hal-04398087v2
Orthogonalization schemes in tensor train format Martina Iannacito,Olivier Coulaud,Luc Giraud The 29th Biennial Conference on Numerical Analysis 2023, Jun 2023, Glasgow, United Kingdom Communication dans un congrès hal-04394115v1
Orthogonalization schemes in tensor train format Martina Iannacito,Olivier Coulaud,Luc Giraud AG 2023 - SIAM Conference on Applied Algebraic Geometry, Jul 2023, Eindhoven / Hybrid, Netherlands Communication dans un congrès hal-04394130v1
GMRES in variable accuracy: a case study in low rank tensor linear systems Martina Iannacito,Emmanuel Agullo,Olivier Coulaud,Luc Giraud,Gilles Maraitet al. GAMM - Workshop on Applied and Numerical Linear Algebra 2022, Erin Carson; Iveta Hnětynková; Stefano Pozza; Petr Tichý; Miroslav Tůma, Sep 2022, Prague, Czech Republic Communication dans un congrès hal-03826879v2
Numerical Analysis of the Maximal Attainable Accuracy in Communication-hiding Pipelined Conjugate Gradients Siegfried Cools,Jeffrey Cornelis,Emmanuel Agullo,Emrullah Fatih-Yetkin,Luc Giraudet al. CSE19 - SIAM Conference on Computational Science and Engineering, Feb 2019, Spokane, United States Communication dans un congrès hal-02073711v1
On Soft Errors in the Conjugate Gradient: Sensitivity and Robust Numerical Detection Emmanuel Agullo,Siegfried Cools,Luc Giraud,Emrullah Fatih-Yetkin,Wim Vanroose CSE19 - SIAM Conference on Computational Science and Engineering, Feb 2019, Spokane, United States Communication dans un congrès hal-02073742v1
Energy Analysis of a Solver Stack for Frequency-Domain Electromagnetics Emmanuel Agullo,Luc Giraud,Stephane Lanteri,Gilles Marait,Anne-Cécile Orgerieet al. PDP 2019 - 27th Euromicro International Conference on Parallel, Distributed and Network-Based Processing, Feb 2019, Pavia, Italy. pp.385-391, ⟨10.1109/EMPDP.2019.8671555⟩ Communication dans un congrès hal-02191331v1
Hierarchical Symbolic Factorization for Sparse Matrices Aurélien Falco,Emmanuel Agullo,Luc Giraud,Guillaume Sylvand Sparse Days 2018, Sep 2018, Toulouse, France Communication dans un congrès hal-01999895v1
Soft Error in PCG: Sensitivity, Numerical Detections and Possible Recoveries Emmanuel Agullo,Luc Giraud,Emrullah Fatih Yetkin SIAM Conference on Computational Science and Engineering, CSE'17, Feb 2017, Atlanta, United States Communication dans un congrès hal-01670189v1
Robust coarse spaces for abstract Schwarz preconditioners via generalized eigenproblems Emmanuel Agullo,Luc Giraud,Louis Poirel International conference on domain decomposition methods, DD24, Feb 2017, Svalbard, Norway Communication dans un congrès hal-01670178v1
Soft Error in Classical PCG and its Variants: Sensitivity, Numerical Detections and Possible Recovery Policies Emmanuel Agullo,Siegfried Cools,Luc Giraud,Wim Vanroose,Emrullah Fatih Yetkin SIAM Annual meeting 2017, AN'17, Jul 2017, Pittsburgh, United States Communication dans un congrès hal-01670198v1
Task-based sparse hybrid linear solver for distributed memory heterogeneous architectures Emmanuel Agullo,Luc Giraud,Stojce Nakov HeteroPar'2016 worshop of Euro-Par, Aug 2016, Grenoble, France Communication dans un congrès hal-01334738v1
Two New Block Krylov Methods for Linear Systems with Multiple Right-hand Sides Yan-Fei Jing,Emmanuel Agullo,Bruno Carpentieri,Luc Giraud,Ting-Zhu Huang IMA Conference on Numerical Linear Algebra and Optimization, Sep 2016, Birmingham, United Kingdom Communication dans un congrès hal-01334648v1
Coarse Grid Correction for Algebraic Domain Decomposition Solvers Louis Poirel,Emmanuel Agullo,Luc Giraud ECCOMAS Congress 2016, Jun 2016, Hersonissos, Greece Communication dans un congrès hal-01355534v1
Soft errors in PCG: detection and correction Emmanuel Agullo,Siegfried Cools,Luc Giraud,Wim Vanroose,Emrullah Fatih Yetkin SIAM Conference on Parallel Processing for Scientific Computing (SIAM PP 2016), Apr 2016, Paris, France Communication dans un congrès hal-01301240v1
Semi-Algebraic Coarse Space for Parallel Sparse Hybrid Solvers Emmanuel Agullo,Louis Poirel,Luc Giraud Journée Calcul Haute Performance et Décomposition de Domaines, Apr 2016, Paris, France Communication dans un congrès hal-01440792v1
Task-based Conjugate Gradient: from multi-GPU towards heterogeneous architectures Emmanuel Agullo,Luc Giraud,Abdou Guermouche,Stojce Nakov,Jean Roman HeteroPar'2016 worshop of Euro-Par, Aug 2016, Grenoble, France. ⟨10.1007/978-3-319-58943-5⟩ Communication dans un congrès hal-01334734v1
On rounding error resilience, maximal attainable accuracy and parallel performance of the pipelined Conjugate Gradients method for large-scale linear systems in PETSc Siegfried Cools,Wim Vanroose,Emrullah Fatih Yetkin,Emmanuel Agullo,Luc Giraud EASC 2016 - Exascale Applications and Software Conference, Apr 2016, Stockholm, Sweden. pp.1-10, ⟨10.1145/2938615.2938621⟩ Communication dans un congrès hal-01734422v1
Hard faults and soft errors: possible numerical remedies in linear algebra solvers Emmanuel Agullo,Siegfried Cools,Luc Giraud,Alexandre Moreau,Pablo Salaset al. VecPar - International meeting on High Performance Computing for Computational science, Jun 2016, Porto, Portugal Communication dans un congrès hal-01334675v1
Numerical fault tolerant strategies for resilient parallel eigensolvers Emmanuel Agullo,Luc Giraud,Pablo Salas,Mawussi Zounon IMA Conference on Numerical Linear Algebra and Optimization, Sep 2016, Birmingham, United Kingdom Communication dans un congrès hal-01334631v1
Combining Software Pipelining with Numerical Pipelining in the Conjugate Gradient Algorithm Emmanuel Agullo,Luc Giraud,Stojce Nakov SIAM Conference on Parallel Processing for Scientific Computing (SIAM PP 2016), Apr 2016, Paris, France Communication dans un congrès hal-01301237v1
Coarse Grid Correction for the MaPHyS Algebraic Domain Decomposition Solver Emmanuel Agullo,Luc Giraud,Louis Poirel Sparse Days 2016, Jun 2016, Toulouse, France Communication dans un congrès hal-01440803v1
Reliability of Checksum based Detection for Soft Errors in Conjugate Gradient Variants Emmanuel Agullo,Luc Giraud,Emrullah Fatih Yetkin SIAM Conference on Computational Science and Engineering (SIAM CSE 2015), Mar 2015, Salt Lake city, Utah, United States Communication dans un congrès hal-01200706v1
H-Matrix Solver for FEM/BEM Emmanuel Agullo,Aurélien Falco,Luc Giraud,Benoît Lizé,Guillaume Sylvand CIMI Workshop on Fast Direct Solvers, Jun 2015, Toulouse, France Communication dans un congrès hal-01215345v1
On Numerical Resiliency in Numerical Linear Algebra Solvers Emmanuel Agullo,Luc Giraud,Pablo Salas,Emrullah Fatih Yetkin,Mawussi Zounon Salishan Conference on High-Speed Computing, DOE laboratories, Apr 2015, Salishan, United States Communication dans un congrès hal-01162627v1
H-matrix techniques for parallel hybrid solvers Emmanuel Agullo,Eric Darve,Yuval Harness,Luc Giraud CIMI Workshop on Fast Direct Solvers, Jun 2015, Toulouse, France Communication dans un congrès hal-01215344v1
On Resiliency in Krylov Solvers Emmanuel Agullo,Luc Giraud,Pablo Salas,Emrullah Fatih Yetkin,Mawussi Zounon PACS'15: Plateform for Advanced Scientific Computing Conference, Jun 2015, Zurich, Switzerland Communication dans un congrès hal-01162618v1
Data sparse techniques for parallel hybrid solvers Emmanuel Agullo,Eric Darve,Luc Giraud,Yuval Harness SIAM Conference on Applied Linear Algebra (SIAM LA 2015), Apr 2015, Atlanta, United States Communication dans un congrès hal-01256230v1
On the resilience of parallel sparse hybrid solvers Emmanuel Agullo,Luc Giraud,Mawussi Zounon HiPC 2015 - IEEE International Conference on High Performance Computing, Dec 2015, Bangalore, India Communication dans un congrès hal-01256316v2
Recover-Restart Strategies for Resilient Parallel Numerical Linear Algebra Solvers Emmanuel Agullo,Luc Giraud,Pablo Salas,Mawussi Zounon Householder Symposium XIX, Jun 2014, Spa, Belgium Communication dans un congrès hal-01018760v1
Parallel hybrid linear solvers Luc Giraud 4ème Ecole Thématique de Simulation Numérique, CEA, Apr 2014, Porquerolles, France Communication dans un congrès hal-01118437v1
Preliminary Investigations on Resilient Parallel Numerical Linear Algebra Solvers Emmanuel Agullo,Luc Giraud,Pablo Salas,Emrullah Fatih Yetkin,Mawussi Zounon SIAM Workshop on Exascale Applied Mathematics Challenges and Opportunities, Jul 2014, Chicago, United States Communication dans un congrès hal-01018763v1
Recover-Restart Strategies for Resilient Parallel Numerical Linear Algebra Solvers Emmanuel Agullo,Luc Giraud,Pablo Salas,Mawussi Zounon International Workshop on Parallel Matrix Algorithms and Applications (PMAA 2014), Jul 2014, Lugano, Switzerland Communication dans un congrès hal-01058138v1
Some progresses in parallel numerical linear algebra toward extreme scale Luc Giraud Séminaire : Mesocentre de calcul de l'Ecole Centrale Paris (Session sur les méthodes de résolution des sytèmes linéaires), Ecole Centrale Paris, Dec 2014, Paris, France Communication dans un congrès hal-01120201v1
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
Recovery-Restart Techniques for Resilient Krylov Methods Emmanuel Agullo,Luc Giraud,Salas Pablo,Mawussi Zounon SIAM Conference on Parallel Processing for Scientific Computing (SIAM PP 2014), Feb 2014, Portland, United States Communication dans un congrès hal-01062232v1
Some Progresses on Krylov Linear Solvers: Block-variants and Resiliency Emmanuel Agullo,Luc Giraud,Yan-Fei Jing,Pablo Salas,Emrullah Fatih Yetkinet al. Argonne Mathematics and Computer Science Seminar, Jul 2014, Lemont, United States Communication dans un congrès hal-01018761v1
Towards resilient parallel linear Krylov solvers: recover-restart strategies Emmanuel Agullo,Luc Giraud,Abdou Guermouche,Jean Roman,Mawussi Zounon Sparse days 2013, CERFACS, Jun 2013, Toulouse, France Communication dans un congrès hal-00935685v1
Pipelining the CG Solver Over a Runtime System Emmanuel Agullo,Luc Giraud,Abdou Guermouche,Stojce Nakov,Jean Roman GPU Technology Conference, NVIIDA, Mar 2013, San Jose, United States Communication dans un congrès hal-00934948v1
Towards resilient parallel linear Krylov solvers with recover-restart strategies Emmanuel Agullo,Luc Giraud,Abdou Guermouche,Jean Roman European Numerical Mathematics and Advanced Applications, Aug 2013, Lausanne, Switzerland Communication dans un congrès hal-00933640v1
Eigensolvers for thermoacoustics instabilities in combustion chambers Luc Giraud,Pablo Salas,Xavier Vasseur SIAM Conference on Computational Science and Engineering (SIAM CSE 2013), SIAM, Feb 2013, Boston, United States Communication dans un congrès hal-00933498v1
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
Resilience at extreme scale : system level, algorithmic level or both? Luc Giraud,Franck Cappello SIAM Conference on Computational Science and Engineering (SIAM CSE 2013), Feb 2013, Boston, United States Communication dans un congrès hal-00799309v1
Parallel local time-stepping for elastodynamic equations Yohann Dudouit,Luc Giraud,Florence Millot,Sébastien Pernet Conference on Mathematical and Computational Issues in the Geosciences, SIAM, Jun 2013, Padua, Italy Communication dans un congrès hal-00933533v1
Algebraic preconditioners for parallel hybrid solvers Luc Giraud High Performance Computing in Science and Engineering, May 2013, Ostrava, Czech Republic Communication dans un congrès hal-00933517v1
Comparison of two sparse hybrid solvers Emmanuel Agullo,Luc Giraud,Azzam Haidar,Matthieu Lecouvez,Xiaoye S. Liet al. SIAM Conference on Parallel Processing for Scientific Computing (SIAM PP 2012), SIAM, Feb 2012, Savannah, United States Communication dans un congrès hal-00719544v1
On a parallel hierarchical algebraic domain decomposition method for a large scale sparse linear solver Emmanuel Agullo,Luc Giraud,Abdou Guermouche,Jean Roman SIAM Conference on Applied Linear Algebra (SIAM LA 2012), SIAM, Jun 2012, Valencia, Spain Communication dans un congrès hal-00719537v1
Physically-based preconditioner for the WCIP Nathalie Raveu,Julien Vincent,Jean-René Poirier,Ronan Perrussel,Luc Giraud Asia-Pacific Microwave Conference (APMC 2012), Dec 2012, Kaohsiung, Taiwan. pp. 1310 - 1312, ⟨10.1109/APMC.2012.6421905⟩ Communication dans un congrès hal-00907360v1
On a Hierarchical Parallel Algebraic Domain Decomposition Linear Solver Emmanuel Agullo,Luc Giraud,Abdou Guermouche,Stojce Nakov,Jean Roman Scalable Hierarchical Algorithms for eXtreme Computing (SHAX-C) Workshop, Apr 2012, Kaust, Saudi Arabia Communication dans un congrès hal-00726630v1
Towards resilient Krylov solvers Emmanuel Agullo,Luc Giraud,Abdou Guermouche,Jean Roman,Mawussi Zounon SIAM Conference on Applied Linear Algebra (SIAM LA 2012), SIAM, Jun 2012, Valencia, Spain Communication dans un congrès hal-00719534v1
Pipelining the CG Solver Over a Runtime System Emmanuel Agullo,Luc Giraud,Abdou Guermouche,Stojce Nakov,Jean Roman International Workshop on Parallel Matrix Algorithms and Applications (PMAA 2012), Jun 2012, London, United Kingdom Communication dans un congrès hal-00726652v1
On a hierarchical parallel algebraic domain decomposition linear solver Emmanuel Agullo,Luc Giraud,Abdou Guermouche,Yan-Fei Jing,Stojce Nakovet al. Aquitaine-Euskadi Workshop on Applied Mathematics, Jun 2012, Bilbao, Spain Communication dans un congrès hal-00719527v1
Stability of azimuthal modes in annular combustion chambers Pablo Salas,Luc Giraud,Jens-Dominik Müller,Gabriel Staffelbach,Thierry Poinsot Third workshop INCA, Nov 2011, Toulouse, France Communication dans un congrès hal-00651847v1
Parallel algebraic domain decomposition solver for the solution of augmented systems Emmanuel Agullo,Luc Giraud,Abdou Guermouche,Azzam Haidar,Jean Roman The Second International Conference on Parallel, Distributed, Grid and Cloud Computing for Engineering, Apr 2011, Ajaccio, France Communication dans un congrès hal-00652931v1
Algebraic Schwarz preconditioning for the Schur complement: application to the time-harmonic Maxwell equations discretized by a discontinuous Galerkin method Emmanuel Agullo,Luc Giraud,Abdou Guermouche,Azzam Haidar,Jean Romanet al. The Twentieth International Conference on Domain Decomposition Methods, Feb 2011, San Diego La Jolla, United States Communication dans un congrès inria-00577639v1
Performance of a sparse hybrid linear solver on a multicore cluster Emmanuel Agullo,Luc Giraud,Abdou Guermouche,Azzam Haidar,Yohan Lee-Tin-Yienet al. SIAM Conference on Computational Science and Engineering (CSE 2011), Feb 2011, Reno, United States Communication dans un congrès inria-00548911v1
WCIP acceleration Nathalie Raveu,Luc Giraud,Henri Baudrand Asia Pacific Microwave Conference, Dec 2010, Yokohama, Japan Communication dans un congrès inria-00551035v1
Complexity analysis of sparse hybrid linear solvers Emmanuel Agullo,Luc Giraud,Abdou Guermouche,Jean Roman 3rd ''Scheduling in Aussois'' Workshop, Jun 2010, Aussois, France Communication dans un congrès inria-00549221v1
Solveurs parallèles creux hybrides direct/itératif : application à des simulations 3D Emmanuel Agullo,Azzam Haidar,Luc Giraud,Abdou Guermouche,Yohan Lee-Tin-Yienet al. Workshop Solveurs de systèmes linéaires de grande taille : les avancées récentes, Nov 2010, Lyon, France Communication dans un congrès inria-00549144v1
Towards a complexity analysis of sparse hybrid linear solvers Emmanuel Agullo,Luc Giraud,Abdou Guermouche,Azzam Haidar,Jean Roman Para 2010 : State of the Art in Scientific and Parallel Computing, Jun 2010, Reykjavík, Iceland Communication dans un congrès inria-00548913v1
Algebraic parallel domain decomposition solver Emmanuel Agullo,Luc Giraud,Abdou Guermouche,Azzam Haidar,Yohan Lee-Tin-Yienet al. Journée GNR MOMAS / GDR Calcul, May 2010, Paris, France Communication dans un congrès inria-00549132v1
MaPHyS or the development of a parallel algebraic domain decomposition solver in the course of the solstice project Emmanuel Agullo,Luc Giraud,Abdou Guermouche,Azzam Haidar,Jean Roman Sparse Days 2010 Meeting at CERFACS, Jun 2010, Toulouse, France Communication dans un congrès inria-00548915v1
Parallel scalability and complexity analysis of sparse hybrid linear solvers Emmanuel Agullo,Luc Giraud,Abdou Guermouche,Azzam Haidar,Jean Roman 6th International Workshop on Parallel Matrix Algorithms and Applications (PMAA'10), Jun 2010, Basel, Switzerland Communication dans un congrès inria-00549126v1
Parallel algebraic hybrid linear solver for frequency domain acoustic wave modeling Hafedh Ben-Hadj-Ali,Luc Giraud,Azzam Haidar,Stéphane Operto,Jean Virieux SIAM conference on Applied Linear Algebra, SIAM, Oct 2009, Monterey Bay, United States Communication dans un congrès hal-00719553v1
3D frequency-domain finite-difference modeling of acoustic wave propagation using a massively parallel direct solver: a feasibility study Stéphane Operto,Jean Virieux,Patrick Amestoy,Luc Giraud,Jean-Yves L'Excellent SEG 2006 - 76th International Exposition and Annual Meeting, Oct 2006, New Orleans, United States. pp.2265-2269, ⟨10.1190/1.2369987⟩ Communication dans un congrès hal-00408484v1
An Overview of the GRID-TLSE Project Michel Daydé,Luc Giraud,M. Hernandez,Jean-Yves L'Excellent,Marc Pantelet al. VECPAR'04, Universidad Politécnica de Valencia, Jun 2004, Valence, Spain Communication dans un congrès hal-00688814v1

Rapport (34)

Cerfacs ALGO Team Scientific Activity Report for the year 2025 Luciano Drozda Dantas Martins,Luc Giraud,Selime Gürol,Carola Kruse,Paul Myceket al. TR/PA/26/6, Cerfacs - Toulouse, France. 2026 Rapport (rapport contrat/projet) hal-05519493v2
Convergence analysis of overlapping domain decomposition preconditioners for nonlinear problems El Mehdi Ettaouchi,Luc Giraud,Carola Kruse,Nicolas Tardieu RR-9575, INRIA. 2025 Rapport (rapport de recherche) hal-04958735v2
A note on the partial convergence management for the solution of symmetric linear systems with multiple right-hand sides Luc Giraud,Yanfei Xiang RR-9574, Inria Centre at the University of Bordeaux. 2025 Rapport hal-04922247v1
Solving eigenvalue problems in high dimensions using contour integration and Tensor Train format Olivier Coulaud,Luc Giraud,Martina Iannacito,Mohammad Issa RR-9586, Inria. 2025, pp.19 Rapport hal-05017425v3
Fault-tolerant numerical iterative algorithms at scale Alix Tremodeux,Emmanuel Agullo,Anne Benoit,Luc Giraud,Thomas Heraultet al. RR-9567, Inria Lyon. 2025 Rapport hal-04872041v1
Neural network preconditioning: a case study for the solution of the parametric Helmholtz equation Luc Giraud,Carola Kruse,Paul Mycek,Maksym Shpakovych,Yanfei Xiang RR-9593, Inria Centre at the University of Bordeaux, France. 2025 Rapport (rapport de recherche) hal-05157038v1
A robust GMRES algorithm in Tensor Train format Olivier Coulaud,Luc Giraud,Martina Iannacito [Research Report] RR-9484, Inria; Alma Mater Studiorum – Università di Bologna. 2022, pp.1-48 Rapport (rapport de recherche) hal-03776529v4
On some orthogonalization schemes in Tensor Train format Olivier Coulaud,Luc Giraud,Martina Iannacito RR-9491, Inria Bordeaux - Sud-Ouest. 2022 Rapport hal-03850387v3
The backward stable variants of GMRES in variable accuracy Emmanuel Agullo,Olivier Coulaud,Luc Giraud,Martina Iannacito,Gilles Maraitet al. [Research Report] RR-9483, Inria. 2022, pp.1-77 Rapport hal-03776837v3
A note on the strong parallel scalability of numerically scalable Poisson linear solvers Emmanuel Agullo,Luc Giraud,Valentin Joncquieres,Gilles Marait,Louis Poirelet al. [Research Report] RR-9423, Inria Bordeaux - Sud Ouest. 2021, pp.31 Rapport (rapport de recherche) hal-03352049v2
A block minimum residual norm subspace solver for sequences of multiple left and right-hand side linear systems Luc Giraud,Yan-Fei Jing,Yanfei Xiang [Research Report] RR-9393, Inria Bordeaux Sud-Ouest. 2021, pp.60 Rapport (rapport de recherche) hal-03146213v3
Recycling Krylov subspace strategies for sequences of sampled stochastic elliptic equations Nicolas Venkovic,Paul Mycek,Luc Giraud,Olivier Le Maitre [Research Report] RR-9425, Inria Bordeaux - Sud Ouest. 2021 Rapport (rapport de recherche) hal-03366966v1
Comparative study of harmonic and Rayleigh-Ritz procedures with applications to deflated conjugate gradients Nicolas Venkovic,Paul Mycek,Luc Giraud,Olivier Le Maitre [Research Report] Cerfacs. 2020 Rapport (rapport de recherche) hal-02434043v1
On soft errors in the Conjugate Gradient method: sensitivity and robust numerical detection -revised Emmanuel Agullo,Siegfried Cools,Emrullah Fatih-Yetkin,Luc Giraud,Nick Schenkelset al. [Research Report] RR-9330, Inria Bordeaux Sud-Ouest. 2020, pp.43 Rapport (rapport de recherche) hal-02495301v3
Exploring variable accuracy storage through lossy compression techniques in numerical linear algebra: a first application to flexible GMRES Emmanuel Agullo,Franck Cappello,Sheng Di,Luc Giraud,Xin Lianget al. [Research Report] RR-9342, Inria Bordeaux Sud-Ouest. 2020 Rapport (rapport de recherche) hal-02572910v2
A complementary note on soft errors in the Conjugate Gradient method: the persistent error case Emmanuel Agullo,Siegfried Cools,Emrullah Fatih-Yetkin,Luc Giraud,Nick Schenkelset al. [Research Report] RR-9360, Inria Bordeaux Sud-Ouest. 2020 Rapport (rapport de recherche) hal-02921669v2
On soft errors in the Conjugate Gradient method: sensitivity and robust numerical detection Emmanuel Agullo,Siegfried Cools,Emrullah Fatih-Yetkin,Luc Giraud,Wim Vanroose [Research Report] RR-9226, Inria Bordeaux Sud-Ouest. 2018 Rapport (rapport de recherche) hal-01929738v1
Energy analysis of a solver stack for frequency-domain electromagnetics Emmanuel Agullo,Luc Giraud,Stéphane Lanteri,Gilles Marait,Anne-Cécile Orgerieet al. [Research Report] RR-9240, Inria Bordeaux Sud-Ouest. 2018 Rapport (rapport de recherche) hal-01962629v1
Low-rank Factorizations in Data Sparse Hierarchical Algorithms for Preconditioning Symmetric Positive Definite Matrices Emmanuel Agullo,Eric Darve,Luc Giraud,Yuval Harness [Research Report] RR-9200, Inria Bordeaux Sud-Ouest. 2018 Rapport (rapport de recherche) hal-01856399v2
Robust coarse spaces for Abstract Schwarz preconditioners via generalized eigenproblems Emmanuel Agullo,Luc Giraud,Louis Poirel [Research Report] RR-8978, INRIA Bordeaux. 2016 Rapport (rapport de recherche) hal-01399203v1
Nearly optimal fast preconditioning of symmetric positive definite matrices Emmanuel Agullo,Eric Darve,Luc Giraud,Yuval Harness [Research Report] RR-8984, Inria Bordeaux Sud-Ouest. 2016, pp.34 Rapport (rapport de recherche) hal-01403480v2
Hierarchical hybrid sparse linear solver for multicore platforms Emmanuel Agullo,Luc Giraud,Stojce Nakov,Jean Roman [Research Report] RR-8960, INRIA Bordeaux. 2016, pp.25 Rapport (rapport de recherche) hal-01379227v1
Interior penalty discontinuous Galerkin method for coupled elasto-acoustic media Yohann Dudouit,Luc Giraud,Florence Millot,Sébastien Pernet [Research Report] RR-8986, Inria Bordeaux Sud-Ouest. 2016 Rapport (rapport de recherche) hal-01406158v1
Task-based hybrid linear solver for distributed memory heterogeneous architectures Emmanuel Agullo,Luc Giraud,Stojce Nakov [Research Report] RR-8913, Inria Bordeaux Sud-Ouest. 2016 Rapport (rapport de recherche) hal-01316783v1
Interpolation-restart strategies for resilient eigensolvers Emmanuel Agullo,Luc Giraud,Pablo Salas,Mawussi Zounon [Research Report] 8625, INRIA Bordeaux. 2015 Rapport (rapport de recherche) hal-01201748v2
On the resilience of a parallel sparse hybrid solver Emmanuel Agullo,Luc Giraud,Mawussi Zounon [Research Report] RR-8744, INRIA Bordeaux; INRIA. 2015 Rapport (rapport de recherche) hal-01165186v2
Block GMRES method with inexact breakdowns and deflated restarting Emmanuel Agullo,Luc Giraud,Yan-Fei Jing [Research Report] RR-8503, INRIA. 2014, pp.31 Rapport (rapport de recherche) hal-00963704v2
Spectral recycling strategies for the solution of nonlinear eigenproblems in thermoacoustics Pablo Salas,Luc Giraud,Yousef Saad,Stéphane Moreau [Research Report] RR-8542, INRIA. 2014, pp.23 Rapport (rapport de recherche) hal-00996601v1
Towards resilient parallel linear Krylov solvers: recover-restart strategies Emmanuel Agullo,Luc Giraud,Abdou Guermouche,Jean Roman,Mawussi Zounon [Research Report] RR-8324, INRIA. 2013, pp.36 Rapport (rapport de recherche) hal-00843992v1
A Parallel Full Geometric Multigrid Solver for Time Harmonic Maxwell Problems Mathieu Chanaud,Luc Giraud,David Goudin,Jean-Jacques Pesqué,Jean Roman [Research Report] RR-8335, INRIA. 2013, pp.25 Rapport (rapport de recherche) hal-00847966v1
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
Task-based Conjugate-Gradient for multi-GPUs platforms Emmanuel Agullo,Luc Giraud,Abdou Guermouche,Stojce Nakov,Jean Roman [Research Report] RR-8192, INRIA. 2012, pp.28 Rapport (rapport de recherche) hal-00767368v1
Parallel algebraic domain decomposition solver for the solution of augmented systems Emmanuel Agullo,Luc Giraud,Abdou Guermouche,Azzam Haidar,Jean Roman [Research Report] RR-7516, INRIA. 2011 Rapport (rapport de recherche) inria-00559133v1
Sparse approximations of the Schur complement for parallel algebraic hybrid linear solvers in 3D Luc Giraud,Azzam Haidar,Yousef Saad [Research Report] RR-7237, INRIA. 2010, pp.18 Rapport (rapport de recherche) inria-00466828v1

Article dans une revue (31)

Robustness and reliability of state-space, frame-based modeling for thermoacoustics Mathieu Cances,Luc Giraud,Michael Bauerheim,Laurent Y.M. Gicquel,Franck Nicoud Journal of Computational Physics, 2025, 520, pp.113472. ⟨10.1016/j.jcp.2024.113472⟩ Article dans une revue hal-04734953v1
Convergence analysis of overlapping domain decomposition preconditioners for nonlinear problems El Mehdi Ettaouchi,Luc Giraud,Carola Kruse,Nicolas Tardieu SIAM Journal on Scientific Computing, 2025, 47 (6), pp.A3464-A3493. ⟨10.1137/25M1735585⟩ Article dans une revue hal-05412939v1
On some orthogonalization schemes in Tensor Train format Olivier Coulaud,Luc Giraud,Martina Iannacito BIT Numerical Mathematics, 2025, 65 (45), ⟨10.1007/s10543-025-01086-5⟩ Article dans une revue hal-05343109v1
Fault-tolerant numerical iterative algorithms at scale Alix Tremodeux,Anne Benoit,Emmanuel Agullo,Thomas Herault,Luc Giraudet al. International Journal of High Performance Computing Applications, 2025 Article dans une revue hal-05234063v1
A note on TT-GMRES for the solution of parametric linear systems Olivier Coulaud,Luc Giraud,Martina Iannacito Electronic Transactions on Numerical Analysis, 2025, 62, pp.163-187. ⟨10.1553/etna_vol62s163⟩ Article dans une revue hal-04986230v1
A Tensor Train solver for the Magnetic Moment Method A. Zekri,Olivier Coulaud,Luc Giraud,J.-R. Poirier IEEE Transactions on Magnetics, 2025, pp.1-1. ⟨10.1109/TMAG.2025.3618391⟩ Article dans une revue hal-05311300v1
Multifacets of lossy compression for scientific data in the Joint-Laboratory of Extreme Scale Computing Franck Cappello,Sheng Di,Robert Underwood,Dingwen Tao,Jon Calhounet al. Future Generation Computer Systems, 2024, ⟨10.1016/j.future.2024.05.022⟩ Article dans une revue hal-04618060v1
Combining reduction with synchronization barrier on multi‐core processors Aboul‐karim Mohamed El Maarouf,Luc Giraud,Abdou Guermouche,Thomas Guignon Concurrency and Computation: Practice and Experience, 2023, 35 (1), pp.e7402. ⟨10.1002/cpe.7402⟩ Article dans une revue hal-03948901v2
A block minimum residual norm subspace solver with partial convergence management for sequences of linear systems Luc Giraud,Yan-Fei Jing,Yanfei Xiang SIAM Journal on Matrix Analysis and Applications, 2022, 43 (2), pp.710-739. ⟨10.1137/21m1401127⟩ Article dans une revue hal-03546496v2
Resilience and fault tolerance in high-performance computing for numerical weather and climate prediction Tommaso Benacchio,Luca Bonaventura,Mirco Altenbernd,Chris D Cantwell,Peter D Dübenet al. International Journal of High Performance Computing Applications, 2021, 35 (4), pp.285-311. ⟨10.1177/1094342021990433⟩ Article dans une revue hal-03138061v1
Resiliency in numerical algorithm design for extreme scale simulations Emmanuel Agullo,Mirco Altenbernd,Hartwig Anzt,Leonardo Bautista-Gomez,Tommaso Benacchioet al. International Journal of High Performance Computing Applications, 2021, pp.10943420211055188. ⟨10.1177/10943420211055188⟩ Article dans une revue hal-03348787v1
On soft errors in the conjugate gradient method: sensitivity and robust numerical detection Emmanuel Agullo,Siegfried Cools,Emrullah Fatih-Yetkin,Luc Giraud,Nick Schenkelset al. SIAM Journal on Scientific Computing, 2020, 42 (6), ⟨10.1137/18M122858X⟩ Article dans une revue hal-03022845v1
A Plane Wave Scattering Dedicated Integral Equation Benjamin Alzaix,Luc Giraud,Bastiaan Michielsen,Jean-René Poirier IEEE Transactions on Antennas and Propagation, 2020, pp.1-10. ⟨10.1109/TAP.2019.2948390⟩ Article dans une revue hal-02448907v2
Robust preconditioners via generalized eigenproblems for hybrid sparse linear solvers Emmanuel Agullo,Luc Giraud,Louis Poirel SIAM Journal on Matrix Analysis and Applications, 2019, 40 (2), pp.417-439. ⟨10.1137/17M1153765⟩ Article dans une revue hal-02074474v1
High order HDG method and domain decomposition solvers for frequency‐domain electromagnetics Emmanuel Agullo,Luc Giraud,Alexis Gobé,Matthieu Kuhn,Stephane Lanteriet al. International Journal of Numerical Modelling: Electronic Networks, Devices and Fields, 2019, ⟨10.1002/jnm.2678⟩ Article dans une revue hal-02327982v1
Analyzing the Effect of Local Rounding Error Propagation on the Maximal Attainable Accuracy of the Pipelined Conjugate Gradient Method Siegfried Cools,Emrullah Fatih Yetkin,Emmanuel Agullo,Luc Giraud,Wim Vanroose SIAM Journal on Matrix Analysis and Applications, 2018, 39 (1), pp.426 - 450. ⟨10.1137/17M1117872⟩ Article dans une revue hal-01753411v1
Low-Rank Factorizations in Data Sparse Hierarchical Algorithms for Preconditioning Symmetric Positive Definite Matrices Emmanuel Agullo,Eric Darve,Luc Giraud,Yuval Harness SIAM Journal on Matrix Analysis and Applications, 2018, 39 (4), pp.1701-1725 Article dans une revue hal-01940053v1
Guest editorial: Special issue on parallel matrix algorithms and applications (PMAA’16) Emmanuel Agullo,Peter Arbenz,Luc Giraud,Olaf Schenk Parallel Computing, 2018, 74, pp.1 - 2. ⟨10.1016/j.parco.2018.01.003⟩ Article dans une revue hal-01927721v1
ASIS v1.0: an adaptive solver for the simulation of atmospheric chemistry Daniel Cariolle,Philippe Moinat,H. Teyssèdre,Luc Giraud,Béatrice Josseet al. Geoscientific Model Development, 2017, 10, pp.1467 - 1485. ⟨10.5194/gmd-10-1467-2017⟩ Article dans une revue hal-01507392v1
Interpolation-restart strategies for resilient eigensolvers Emmanuel Agullo,Luc Giraud,Pablo Salas,Mawussi Zounon SIAM Journal on Scientific Computing, 2016, 38 (5), pp.C560-C583. ⟨10.1137/15M1042115⟩ Article dans une revue hal-01347793v1
Block GMRES method with inexact breakdowns and deflated restarting Emmanuel Agullo,Luc Giraud,Yan-Fei Jing SIAM Journal on Matrix Analysis and Applications, 2014, 35 (4), pp.1625-1651. ⟨10.1137/140961912⟩ Article dans une revue hal-01067159v1
A Parallel Full Geometric Multigrid Solver for Time Harmonic Maxwell Problems Mathieu Chanaud,Luc Giraud,David Goudin,Jean-Jacques Pesqué,Jean Roman SIAM Journal on Scientific Computing, 2014, 36 (2), pp.C119-C138. ⟨10.1137/130909512⟩ Article dans une revue hal-00933526v1
Parallel algebraic domain decomposition solver for the solution of augmented systems Emmanuel Agullo,Luc Giraud,Abdou Guermouche,Azzam Haidar,Jean Roman Advances in Engineering Software, 2012, 60-61, pp.23-30. ⟨10.1016/j.advengsoft.2012.07.004⟩ Article dans une revue istex hal-00719512v1
Parallel hierarchical hybrid linear solvers for emerging computing platforms Emmanuel Agullo,Luc Giraud,Abdou Guermouche,Jean Roman Comptes rendus de l’Académie des sciences. Série IIb, Mécanique, 2011, High Performance Computing, 339 (2-3), pp.96-103. ⟨10.1016/j.crme.2010.11.005⟩ Article dans une revue istex inria-00548916v1
Three-dimensional parallel frequency-domain visco-acoustic wave modelling based on a hybrid direct/iterative solver Florent Sourbier,Azzam Haidar,Luc Giraud,Hafedh Ben-Hadj-Ali,Stéphane Opertoet al. Geophysical Prospecting, 2011, 59 (5), pp.834-856. ⟨10.1111/j.1365-2478.2011.00966.x⟩ Article dans une revue istex hal-00647179v1
New curvilinear scheme for elastic wave propagation in presence of curved topography Issam Tarrass,Luc Giraud,Pierre Thore Geophysical Prospecting, 2011, 59 (5), pp.889--906. ⟨10.1111/j.1365-2478.2011.00972.x⟩ Article dans une revue istex hal-00647160v1
Using multiple levels of parallelism to enhance the performance of domain decomposition solvers Luc Giraud,Azzam Haidar,Stéphane Pralet Parallel Computing, 2010, 36 (5-6), pp.285-296. ⟨10.1016/j.parco.2009.12.006⟩ Article dans une revue istex inria-00542444v1
Sparse approximations of the Schur complement for parallel algebraic hybrid linear solvers in 3D Luc Giraud,Azzam Haidar,Yousef Saad Numerical Mathematics: Theory, Methods and Applications, 2010, 3 (3), pp.276-294 Article dans une revue inria-00542450v1
Flexible GMRES with deflated restarting Luc Giraud,Serge Gratton,Xavier Pinel,Xavier Vasseur SIAM Journal on Scientific Computing, 2010, 32 (4), pp.1858--1878. ⟨10.1137/080741847⟩ Article dans une revue inria-00542426v1
Parallel algebraic hybrid solvers for large 3D convection-diffusion problems Luc Giraud,Azzam Haidar Numerical Algorithms, 2009, 51 (2), pp.151-177. ⟨10.1007/s11075-008-9248-x⟩ Article dans une revue istex hal-00441717v1
Parallel Tools for Solving Incremental Dense Least Squares Problems: Application to Space Geodesy Marc Baboulin,Luc Giraud,Serge Gratton,Julien Langou Journal of Algorithms and Computational Technology, 2009, 3 (1), pp.117-133. ⟨10.1260/174830109787186541⟩ Article dans une revue hal-03973310v1

Pré-publication, Document de travail (1)

Preconditioners based on Voronoi quantizers of random variable coefficients for stochastic elliptic partial differential equations Nicolas Venkovic,Paul Mycek,Olivier Le Maître,Luc Giraud 2024 Pré-publication, Document de travail hal-04790361v1

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

Proceedings/Recueil des communications (1)

Euro-Par’ 99 Parallel Processing : 5th International Euro-Par Conference Toulouse, France, August 31–September 3, 1999 Proceedings Patrick Amestoy,Philippe Berger,Michel Daydé,Daniel Ruiz,Iain Duffet al. 5th International Euro-Par Conference on Parallel Processing (1999), 1685, Springer, 1999, Lecture Notes in Computer Science (LNCS), 978-3-540-66443-7. ⟨10.1007/3-540-48311-X⟩ Proceedings/Recueil des communications hal-04500452v1