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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-05248772
v1
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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-05248757
v1
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Recent advances on sparse direct solver using Block Low-Rank and mixed precision for large scale applications
Patrick Amestoy
,
Olivier Boiteau
,
Alfredo Buttari
,
Laure Combe
,
Florian Faucher
et al.
SIAM Conference on Applied Linear Algebra (LA24), SIAM: Society for Industrial and Applied Mathematics; Sorbonne Universté, May 2024, Paris, France
Communication dans un congrès
hal-04642783
v1
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Vers un solveur direct à base de tâches pour des systèmes linéaires FEM/BEM creux/denses
Emmanuel Agullo
,
Alfredo Buttari
,
Marek Felšöci
,
Guillaume Sylvand
COMPAS 2023 - Conférence francophone d'informatique en Parallélisme, Architecture et Système, LISTIC : Laboratoire d’Informatique, Systèmes, Traitement de l’Information et de la Connaissance, de l’Université Savoie Mont Blanc., Jul 2023, Annecy, France
Communication dans un congrès
hal-04178064
v1
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On the Arithmetic Intensity of Distributed-Memory Dense Matrix Multiplication Involving a Symmetric Input Matrix (SYMM)
Emmanuel Agullo
,
Alfredo Buttari
,
Olivier Coulaud
,
Lionel Eyraud-Dubois
,
Mathieu Faverge
et al.
IPDPS 2023 - 37th International Parallel and Distributed Processing Symposium, IEEE, May 2023, St. Petersburg, FL, United States. pp.357-367
Communication dans un congrès
hal-04093162
v1
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Reducing communications and memory costs of parallel Block Low-Rank solvers
Patrick Amestoy
,
Olivier Boiteau
,
Alfredo Buttari
,
Matthieu Gerest
,
Fabienne Jézéquel
et al.
SIAM Conference on Computational Science and Engineering (CSE 2023), Feb 2023, Amsterdam, Netherlands
Communication dans un congrès
hal-03922334
v1
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Mixed precision sparse direct solver applied to 3D wave propagation
Patrick Amestoy
,
Alfredo Buttari
,
Florian Faucher
,
Jean-Yves L'Excellent
,
Matthieu Gerest
et al.
8th European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS 2022), Jun 2022, Oslo, Norway
Communication dans un congrès
hal-03887660
v1
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Solving linear systems efficiently using block low-rank compression in mixed precision
Patrick Amestoy
,
Olivier Boiteau
,
Alfredo Buttari
,
Matthieu Gerest
,
Fabienne Jézéquel
et al.
45ème Congrès National d'Analyse Numérique (CANUM 2022), Jun 2022, Évian-les-Bains, France
Communication dans un congrès
hal-03922287
v1
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Solving linear systems efficiently using mixed-precision Block Low-Rank compression
Patrick Amestoy
,
Olivier Boiteau
,
Alfredo Buttari
,
Matthieu Gerest
,
Fabienne Jézéquel
et al.
Rencontres Arithmétique de l'informatique Mathématique (RAIM 2021), GdR GdR IM : Informatique Mathématique, May 2021, Paris, France
Communication dans un congrès
hal-03783037
v1
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Simulation of a Sparse Direct Solver on Heterogeneous Systems using Starpu and Simgrid
Emmanuel Agullo
,
Alfredo Buttari
,
Abdou Guermouche
,
Arnaud Legrand
,
Ian Masliah
et al.
SIAM Conference on Computational Science and Engineering (CSE 2019), Feb 2019, Spokane, United States
Communication dans un congrès
hal-02073725
v1
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A Tridiagonalization Method for Symmetric and Quasi-Definite Saddle-Point Systems (CM 2018, Colorado, USA)
Alfredo Buttari
,
Dominique Orban
,
Daniel Ruiz
,
David Titley-Peloquin
15th Copper Mountain Conference On Iterative Methods (CM 2018), Front Range Scientific Computations, Inc, Boulder, Colorado; University of Colorado, Sandia National Labs; Emory University; Society for Industrial and Applied Mathematics: SIAM Activity Group on Linear Algebra, Mar 2018, Copper Mountain, Colorado, United States
Communication dans un congrès
hal-03023422
v1
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Pre-exascale Architectures: OpenPOWER Performance and Usability Assessment for French Scientific Community
Gabriel Hautreux
,
Alfredo Buttari
,
Arnaud Beck
,
Victor Cameo
,
Dimitri Lecas
et al.
Communication dans un congrès
hal-02129651
v1
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Exploiting a Parametrized Task Graph model for the parallelization of a sparse direct multifrontal solver
Emmanuel Agullo
,
George Bosilca
,
Alfredo Buttari
,
Abdou Guermouche
,
Florent Lopez
Communication dans un congrès
hal-01337748
v1
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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
Patrick Amestoy
,
Romain Brossier
,
Alfredo Buttari
,
Jean-Yves L'Excellent
,
Théo Mary
et al.
Communication dans un congrès
hal-01239896
v1
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3D frequency-domain seismic modeling with a Parallel BLR multifrontal direct solver
Patrick Amestoy
,
Romain Brossier
,
Alfredo Buttari
,
Jean-Yves L'Excellent
,
Théo Mary
et al.
SEG Annual meeting, Oct 2015, New Orleans, United States. pp.3606-3611
Communication dans un congrès
hal-01237869
v1
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Fast and Accurate Simulation of Multithreaded Sparse Linear Algebra Solvers
Luka Stanisic
,
Emmanuel Agullo
,
Alfredo Buttari
,
Abdou Guermouche
,
Arnaud Legrand
et al.
The 21st IEEE International Conference on Parallel and Distributed Systems, Dec 2015, Melbourne, Australia
Communication dans un congrès
hal-01180272
v2
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Task-based multifrontal QR solver for GPU-accelerated multicore architectures
Emmanuel Agullo
,
Alfredo Buttari
,
Abdou Guermouche
,
Florent Lopez
22rd IEEE International Conference on High Performance Computing (HiPC 2015), Dec 2015, Bangalore, India. ⟨10.1109/HiPC.2015.27⟩
Communication dans un congrès
hal-01270145
v1
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Shared memory parallelism and low-rank approximation techniques applied to direct solvers in FEM simulation (regular paper)
Patrick Amestoy
,
Olivier Boiteau
,
Alfredo Buttari
,
Guillaume Joslin
,
Jean-Yves L'Excellent
et al.
19th IEEE International Conference on the Computation of Electromagnetic Fields (COMPUMAG 2013), International Compumag Society (ICS) Technical Co-Sponsorship - IEEE Magnetics Society, Jun 2013, Budapest, Hungary
Communication dans un congrès
hal-00924660
v1
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Multifrontal QR Factorization for Multicore Architectures over Runtime Systems
Emmanuel Agullo
,
Alfredo Buttari
,
Abdou Guermouche
,
Florent Lopez
Communication dans un congrès
hal-01220611
v1
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Recent advances in sparse direct solvers
Emmanuel Agullo
,
Patrick Amestoy
,
Alfredo Buttari
,
Abdou Guermouche
,
Guillaume Joslin
et al.
22nd International Conference on Structural Mechanics in Reactor Technology (SMiRT 2013), Aug 2013, San Francisco, United States. pp.1-10
Communication dans un congrès
hal-01060301
v1
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3D frequency-domain seismic modeling with a Block Low-Rank algebraic multifrontal direct solver
Clément Weisbecker
,
Patrick Amestoy
,
Olivier Boiteau
,
Romain Brossier
,
Alfredo Buttari
et al.
Society of Exploration Geophysicists annual meeting (SEG 2013), Society of Exploration Geophysicists, 2013, Houston, Texas, United States. ⟨10.1190/segam2013-0603.1⟩
Communication dans un congrès
hal-00924638
v1
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Robust Memory-Aware Mappings for Parallel Multifrontal Factorizations
Emmanuel Agullo
,
Patrick Amestoy
,
Alfredo Buttari
,
Abdou Guermouche
,
Jean-Yves L'Excellent
et al.
SIAM Conference on Parallel Processing for Scientific Computing (SIAM PP 2012), SIAM Activity Group on Supercomputing, Feb 2012, Savannah, Georgia, United States
Communication dans un congrès
hal-00726644
v1
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Improving Multifrontal methods by means of Low-Rank Approximations techniques
Patrick Amestoy
,
Cleve Ashcraft
,
Olivier Boiteau
,
Alfredo Buttari
,
Jean-Yves L'Excellent
et al.
SIAM Conference on Applied Linear Algebra 2012, Jun 2012, Valencia, Spain. pp.A1451-A1474
Communication dans un congrès
hal-00789684
v1
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Exploiting Multithreaded Tree Parallelism for Multicore Systems in a Parallel Multifrontal Solver
Patrick Amestoy
,
Alfredo Buttari
,
Abdou Guermouche
,
Jean-Yves L'Excellent
,
Mohamed W. Sid-Lakhdar
SIAM Conference on Parallel Processing for Scientific Computing (SIAM PP12 2012), Feb 2012, Savannah, GA, United States
Communication dans un congrès
hal-00789698
v1
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Grouping variables in Frontal Matrices to improve Low-Rank Approximations in a Multifrontal Solver
Clément Weisbecker
,
Patrick Amestoy
,
Cleve Ashcraft
,
Olivier Boiteau
,
Alfredo Buttari
et al.
International Conference On Preconditioning Techniques For Scientific And Industrial Applications (PRECONDITIONING 2011), INRIA Bordeaux Sud-Ouest; ENSEIRB; University of Bordeaux 1, May 2011, Bordeaux, France
Communication dans un congrès
inria-00581561
v1
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A Novel Aggregation Method based on Graph Matching for Algebraic MultiGrid Preconditioning of Sparse Linear Systems
Pasqua d'Ambra
,
Alfredo Buttari
,
Daniela Di Serafino
,
Salvatore Filippone
,
Simone Gentile
et al.
International Conference On Preconditioning Techniques For Scientific And Industrial Applications (PRECONDITIONING 2011), INRIA Bordeaux Sud-Ouest; ENSEIRB; University of Bordeaux 1, May 2011, Bordeaux, France
Communication dans un congrès
inria-00580434
v1
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Towards a parallel analysis phase for a multifrontal sparse solver
Patrick Amestoy
,
Alfredo Buttari
,
Jean-Yves L'Excellent
5th International Workshop on Parallel Matrix Algorithms and Applications (PMAA 2008), Jun 2008, Neuchâtel, Switzerland
Communication dans un congrès
hal-00803488
v1
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Exploiting the performance of 32 bit floating point arithmetic in obtaining 64 bit accuracy (revisiting iterative refinement for linear systems)
Julie Langou
,
Julien Langou
,
Piotr Luszczek
,
Jakub Kurzak
,
Alfredo Buttari
et al.
Communication dans un congrès
hal-05169433
v1
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Extending PSBLAS to Build Parallel Schwarz Preconditioners
Alfredo Buttari
,
Pasqua D’ambra
,
Daniela Di Serafino
,
Salvatore Filippone
International Workshop on Applied Parallel Computing, 2006, Lyngby, Denmark. pp.593-602, ⟨10.1007/11558958_71⟩
Communication dans un congrès
hal-05267368
v1
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