Alfredo Buttari CNRS Research Director at IRIT

Identifiants chercheurs

IdHAL :

alfredo-buttari

ORCID :

0000-0003-3207-7021

IdRef :

167548999

Présentation

Publications

Article dans une revue (35)

A modular framework for the backward error analysis of GMRES Alfredo Buttari,Nicholas J Higham,Theo Mary,Bastien Vieublé IMA Journal of Numerical Analysis, In press, ⟨10.1093/imanum/draf049⟩ Article dans une revue (article de synthèse) hal-04525918v3
Truncated QR factorization with pivoting in mixed precision Alfredo Buttari,Theo Mary,André Pacteau SIAM Journal on Scientific Computing, 2025, 47 (2), pp.B382-B401. ⟨10.1137/24M1644705⟩ Article dans une revue hal-04490215v2
Deterministic and probabilistic rounding error analysis of neural networks in floating-point arithmetic Théo Beuzeville,Alfredo Buttari,Serge Gratton,Theo Mary IMA Journal of Numerical Analysis, In press Article dans une revue hal-04663142v3
Five-Precision GMRES-based iterative refinement Patrick Amestoy,Alfredo Buttari,Nicholas Higham,Jean-Yves L’excellent,Theo Maryet al. SIAM Journal on Matrix Analysis and Applications, 2024, 45 (1), pp.529--552. ⟨10.1137/23M1549079⟩ Article dans une revue hal-03190686v2
Communication Avoiding Block Low-Rank Parallel Multifrontal Triangular Solve with Many Right-Hand Sides Patrick Amestoy,Olivier Boiteau,Alfredo Buttari,Matthieu Gerest,Fabienne Jézéquelet al. SIAM Journal on Matrix Analysis and Applications, 2024, 45 (1), pp.148-166. ⟨10.1137/23M1568600⟩ Article dans une revue hal-04082415v1
Is 3D frequency-domain FWI of full-azimuth/long-offset OBN data feasible? The Gorgon case study Stéphane Operto,Patrick Amestoy,Stephen Beller,Alfredo Buttari,L. Combeet al. Leading Edge, 2023, 42 (3), pp.173-183. ⟨10.1190/tle42030173.1⟩ Article dans une revue hal-03922986v1
Task-based parallel programming for scalable matrix product algorithms Emmanuel Agullo,Alfredo Buttari,Abdou Guermouche,Julien Herrmann,Antoine Jego ACM Transactions on Mathematical Software, 2023, 49 (2), pp.Pages 1 - 23. ⟨10.1145/3583560⟩ Article dans une revue hal-03936659v2
Combining sparse approximate factorizations with mixed precision iterative refinement Patrick Amestoy,Alfredo Buttari,Nicholas J Higham,Jean-Yves L’excellent,Theo Maryet al. ACM Transactions on Mathematical Software, 2023, 49 (1), pp.1-29. ⟨10.1145/3582493⟩ Article dans une revue hal-03536031v2
Mixed Precision Low Rank Approximations and their Application to Block Low Rank LU Factorization Patrick Amestoy,Olivier Boiteau,Alfredo Buttari,Matthieu Gerest,Fabienne Jézéquelet al. IMA Journal of Numerical Analysis, 2023, 43 (4), pp.2198-2227. ⟨10.1093/imanum/drac037⟩ Article dans une revue hal-03251738v3
Block Low-rank Single Precision Coarse Grid Solvers for Extreme Scale Multigrid Methods Alfredo Buttari,Markus Huber,Philippe Leleux,Théo Mary,Ulrich Ruedeet al. Numerical Linear Algebra with Applications, 2021, 29 (1), ⟨10.1002/nla.2407⟩ Article dans une revue hal-02528532v1
Block Low-Rank Matrices with Shared Bases: Potential and Limitations of the BLR2S Format Cleve Ashcraft,Alfredo Buttari,Théo Mary SIAM Journal on Matrix Analysis and Applications, 2021, 42 (2), ⟨10.1137/20M1386451⟩ Article dans une revue hal-03070416v2
Parallel QR factorization of block-tridiagonal matrices Alfredo Buttari,Søren Hauberg,Costy Kodsi SIAM Journal on Scientific Computing, 2020, 42 (6), pp.C313-C334. ⟨10.1137/19M1306166⟩ Article dans une revue hal-02370953v2
Bridging the gap between flat and hierarchical low-rank matrix formats: the multilevel BLR format Patrick Amestoy,Alfredo Buttari,Jean-Yves L'Excellent,Theo Mary SIAM Journal on Scientific Computing, 2019, 41 (3), pp.A1414-A1442. ⟨10.1137/18M1182760⟩ Article dans une revue hal-01774642v3
A Tridiagonalization Method for Symmetric Saddle-Point Systems Alfredo Buttari,Dominique Orban,Daniel Ruiz,David Titley-Peloquin SIAM Journal on Scientific Computing, 2019, 41 (5), pp.S409-S432. ⟨10.1137/18M1194900⟩ Article dans une revue hal-02343661v1
Performance and Scalability of the Block Low-Rank Multifrontal Factorization on Multicore Architectures Patrick Amestoy,Alfredo Buttari,Jean-Yves L'Excellent,Theo Mary ACM Transactions on Mathematical Software, 2019, 45 (1), pp.1-23. ⟨10.1145/3242094⟩ Article dans une revue hal-01955766v2
Large-scale 3D EM modeling with a Block Low-Rank multifrontal direct solver Daniil Shantsev,Piyoosh Jaysaval,Sébastien de La Kethulle de Ryhove,Patrick Amestoy,Alfredo Buttariet al. Geophysical Journal International, 2017, 209 (3), pp.1558-1571. ⟨10.1093/gji/ggx106⟩ Article dans une revue hal-01672952v1
On the Complexity of the Block Low-Rank Multifrontal Factorization Patrick Amestoy,Alfredo Buttari,Jean-Yves L'Excellent,Theo Mary SIAM Journal on Scientific Computing, 2017, 39 (4), pp.34. ⟨10.1137/16M1077192⟩ Article dans une revue hal-01322230v3
Robust memory-aware mappings for parallel multifrontal factorizations Emmanuel Agullo,Patrick Amestoy,Alfredo Buttari,Abdou Guermouche,Jean-Yves L'Excellentet al. SIAM Journal on Scientific Computing, 2016, 38 (3), pp.C256 - C279. ⟨10.1137/130938505⟩ Article dans une revue hal-01334113v2
Implementing multifrontal sparse solvers for multicore architectures with Sequential Task Flow runtime systems Emmanuel Agullo,Alfredo Buttari,Abdou Guermouche,Florent Lopez ACM Transactions on Mathematical Software, 2016, ⟨10.1145/2898348⟩ Article dans une revue hal-01333645v1
Performance Optimization and Modeling of Blocked Sparse Kernels Alfredo Buttari,Victor Eijkhout,Julien Langou,Salvatore Filippone International Journal of High Performance Computing Applications, 2016, 21 (4), pp.467-484. ⟨10.1177/1094342007083801⟩ Article dans une revue istex hal-02421133v1
Fast 3D frequency-domain full waveform inversion with a parallel Block Low-Rank multifrontal direct solver: application to OBC data from the North Sea Patrick Amestoy,Romain Brossier,Alfredo Buttari,Jean-Yves L'Excellent,Théo Maryet al. Geophysics, 2016, 81 (6), pp.R363-R383. ⟨10.1190/geo2016-0052.1⟩ Article dans une revue hal-01349119v1
Mixed Precision Iterative Refinement Techniques for the Solution of Dense Linear Systems Alfredo Buttari,Jack J. Dongarra,Julie Langou,Julien Langou,Piotr Luszczeket al. International Journal of High Performance Computing Applications, 2016, 21 (4), pp.457-466. ⟨10.1177/1094342007084026⟩ Article dans une revue hal-02421121v1
Improving Multifrontal Methods by Means of Block Low-Rank Representations Patrick Amestoy,Cleve Ashcraft,Olivier Boiteau,Alfredo Buttari,Jean-Yves L'Excellentet al. SIAM Journal on Scientific Computing, 2015, 37 (3), pp.A1451-A1474. ⟨10.1137/120903476⟩ Article dans une revue hal-01237169v1
Shared memory parallelism and low-rank approximation techniques applied to direct solvers in FEM simulation Patrick Amestoy,Alfredo Buttari,Guillaume Joslin,Jean-Yves L'Excellent,Mohamed Sid-Lakhdaret al. IEEE Transactions on Magnetics, 2014, vol. 50 (n° 2), pp. 1-4. ⟨10.1109/TMAG.2013.2284024⟩ Article dans une revue hal-01123557v1
INTEGRAL/SPI data segmentation to retrieve sources intensity variations Laurent Bouchet,Patrick Amestoy,Alfredo Buttari,François-Henry Rouet,Maxime Chauvin Astronomy & Astrophysics - A&A, 2013, vol. 555 (n° A55), pp. 1-22. ⟨10.1051/0004-6361/201219605⟩ Article dans une revue hal-01124774v1
Fine-Grained Multithreading for the Multifrontal QR Factorization of Sparse Matrices Alfredo Buttari SIAM Journal on Scientific Computing, 2013, vol. 35 (n° 4), pp. 323-345. ⟨10.1137/110846427⟩ Article dans une revue hal-01122471v1
Simultaneous analysis of large INTEGRAL/SPI datasets: optimizing the computation of the solution and its variance using sparse matrix algorithms Laurent Bouchet,Patrick Amestoy,Alfredo Buttari,François-Henry Rouet,Maxime Chauvin Astronomy and Computing, 2013, vol. 1, pp. 59-69. ⟨10.1016/j.ascom.2013.03.002⟩ Article dans une revue hal-01125193v1
Object-Oriented Techniques for Sparse Matrix Computations in Fortran 2003 Salvatore Filippone,Alfredo Buttari ACM Transactions on Mathematical Software, 2012, 38 (4), pp.1-20. ⟨10.1145/2331130.2331131⟩ Article dans une revue hal-02419121v1
Accelerating scientific computations with mixed precision algorithms Marc Baboulin,Alfredo Buttari,Jack J. Dongarra,Jakub Kurzak,Julie Langouet al. Computer Physics Communications, 2009, 180 (12), pp.2526-2533. ⟨10.1016/j.cpc.2008.11.005⟩ Article dans une revue hal-02420940v1
A class of parallel tiled linear algebra algorithms for multicore architectures Alfredo Buttari,Julien Langou,Jakub Kurzak,Jack J. Dongarra Parallel Computing, 2009, 35 (1), pp.38-53. ⟨10.1016/j.parco.2008.10.002⟩ Article dans une revue hal-02420965v1
Parallel tiled QR factorization for multicore architectures Alfredo Buttari,Julien Langou,Jakub Kurzak,Jack Dongarra Concurrency and Computation: Practice and Experience, 2008, 20 (13), ⟨10.1002/cpe.v20:13⟩ Article dans une revue hal-02421078v1
Using Mixed Precision for Sparse Matrix Computations to Enhance the Performance while Achieving 64-bit Accuracy Alfredo Buttari,Jack J. Dongarra,Jakub Kurzak,Piotr Luszczek,Stanimir Tomov ACM Transactions on Mathematical Software, 2008, 34 (4), pp.1-22. ⟨10.1145/1377596.1377597⟩ Article dans une revue hal-02421028v1
The PlayStation 3 for High-Performance Scientific Computing Jakub Kurzak,Alfredo Buttari,Piotr Luszczek,Jack J. Dongarra Computing in Science and Engineering, 2008, 10 (3), pp.84-87. ⟨10.1109/MCSE.2008.85⟩ Article dans une revue hal-02421063v1
Solving Systems of Linear Equations on the CELL Processor Using Cholesky Factorization Jakub Kurzak,Alfredo Buttari,Jack Dongarra IEEE Transactions on Parallel and Distributed Systems, 2008, 19 (9), pp.1175-1186. ⟨10.1109/TPDS.2007.70813⟩ Article dans une revue hal-02421046v1
2LEV-D2P4: a package of high-performance preconditioners for scientific and engineering applications Alfredo Buttari,Pasqua D’ambra,Daniela Di Serafino,Salvatore Filippone Applicable Algebra in Engineering, Communication and Computing, 2007, 18 (3), pp.223-239. ⟨10.1007/s00200-007-0035-z⟩ Article dans une revue istex hal-02421066v1

Communication dans un congrès (32)

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
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 Faucheret 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-04642783v1
Reducing communications and memory costs of parallel Block Low-Rank solvers Patrick Amestoy,Olivier Boiteau,Alfredo Buttari,Matthieu Gerest,Fabienne Jézéquelet al. SIAM Conference on Computational Science and Engineering (CSE 2023), Feb 2023, Amsterdam, Netherlands Communication dans un congrès hal-03922334v1
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-04178064v1
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 Favergeet 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-04093162v1
Mixed precision sparse direct solver applied to 3D wave propagation Patrick Amestoy,Alfredo Buttari,Florian Faucher,Jean-Yves L'Excellent,Matthieu Gerestet al. 8th European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS 2022), Jun 2022, Oslo, Norway Communication dans un congrès hal-03887660v1
Solving linear systems efficiently using block low-rank compression in mixed precision Patrick Amestoy,Olivier Boiteau,Alfredo Buttari,Matthieu Gerest,Fabienne Jézéquelet al. 45ème Congrès National d'Analyse Numérique (CANUM 2022), Jun 2022, Évian-les-Bains, France Communication dans un congrès hal-03922287v1
Solving linear systems efficiently using mixed-precision Block Low-Rank compression Patrick Amestoy,Olivier Boiteau,Alfredo Buttari,Matthieu Gerest,Fabienne Jézéquelet al. Rencontres Arithmétique de l'informatique Mathématique (RAIM 2021), GdR GdR IM : Informatique Mathématique, May 2021, Paris, France Communication dans un congrès hal-03783037v1
Simulation of a Sparse Direct Solver on Heterogeneous Systems using Starpu and Simgrid Emmanuel Agullo,Alfredo Buttari,Abdou Guermouche,Arnaud Legrand,Ian Masliahet al. SIAM Conference on Computational Science and Engineering (CSE 2019), Feb 2019, Spokane, United States Communication dans un congrès hal-02073725v1
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-03023422v1
Pre-exascale Architectures: OpenPOWER Performance and Usability Assessment for French Scientific Community Gabriel Hautreux,Alfredo Buttari,Arnaud Beck,Victor Cameo,Dimitri Lecaset al. ISC High Performance 2017: High Performance Computing, 2017, Frankfurt, Germany. pp.309-324, ⟨10.1007/978-3-319-67630-2_23⟩ Communication dans un congrès hal-02129651v1
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 Euro-Par 2016: Parallel Processing Workshops, Aug 2016, Grenoble, France. ⟨10.1007/978-3-319-58943-5_14⟩ Communication dans un congrès hal-01337748v1
3D frequency-domain seismic modeling with a Parallel BLR multifrontal direct solver Patrick Amestoy,Romain Brossier,Alfredo Buttari,Jean-Yves L'Excellent,Théo Maryet al. SEG Annual meeting, Oct 2015, New Orleans, United States. pp.3606-3611 Communication dans un congrès hal-01237869v1
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 Maryet al. SEG Annual meeting, Oct 2015, New Orleans, United States. pp.1303-1308, ⟨10.1190/segam2015-5713962.1⟩ Communication dans un congrès hal-01239896v1
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-01270145v1
Fast and Accurate Simulation of Multithreaded Sparse Linear Algebra Solvers Luka Stanisic,Emmanuel Agullo,Alfredo Buttari,Abdou Guermouche,Arnaud Legrandet al. The 21st IEEE International Conference on Parallel and Distributed Systems, Dec 2015, Melbourne, Australia Communication dans un congrès hal-01180272v2
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'Excellentet 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-00924660v1
3D frequency-domain seismic modeling with a Block Low-Rank algebraic multifrontal direct solver Clément Weisbecker,Patrick Amestoy,Olivier Boiteau,Romain Brossier,Alfredo Buttariet 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-00924638v1
Multifrontal QR Factorization for Multicore Architectures over Runtime Systems Emmanuel Agullo,Alfredo Buttari,Abdou Guermouche,Florent Lopez 19th International Conference on Parallel Processing (EuroPar 2013), Aug 2013, Aachen, Germany. pp.521-532, ⟨10.1007/978-3-642-40047-6_53⟩ Communication dans un congrès hal-01220611v1
Recent advances in sparse direct solvers Emmanuel Agullo,Patrick Amestoy,Alfredo Buttari,Abdou Guermouche,Guillaume Joslinet 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-01060301v1
Improving Multifrontal methods by means of Low-Rank Approximations techniques Patrick Amestoy,Cleve Ashcraft,Olivier Boiteau,Alfredo Buttari,Jean-Yves L'Excellentet al. SIAM Conference on Applied Linear Algebra 2012, Jun 2012, Valencia, Spain. pp.A1451-A1474 Communication dans un congrès hal-00789684v1
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-00789698v1
Robust Memory-Aware Mappings for Parallel Multifrontal Factorizations Emmanuel Agullo,Patrick Amestoy,Alfredo Buttari,Abdou Guermouche,Jean-Yves L'Excellentet 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-00726644v1
Grouping variables in Frontal Matrices to improve Low-Rank Approximations in a Multifrontal Solver Clément Weisbecker,Patrick Amestoy,Cleve Ashcraft,Olivier Boiteau,Alfredo Buttariet 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-00581561v1
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 Gentileet 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-00580434v1
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-00803488v1
Multithreading for synchronization tolerance in matrix factorization Alfredo Buttari,Jack Dongarra,Parry Husbands,Jakub Kurzak,Katherine Yelick SciDAC 2007, 2007, Boston (MA), United States. pp.012028, ⟨10.1088/1742-6596/78/1/012028⟩ Communication dans un congrès hal-05267445v1
Prospectus for the Next LAPACK and ScaLAPACK Libraries James Demmel,Jack Dongarra,Beresford Parlett,William Kahan,Ming Guet al. PARA 2006, 2006, Umea, Sweden. pp.11-23, ⟨10.1007/978-3-540-75755-9_2⟩ Communication dans un congrès hal-05267407v1
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-05267368v1
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 Buttariet al. the 2006 ACM/IEEE conference on Supercomputing, Nov 2006, Tampa, FL, United States. pp.113, ⟨10.1145/1188455.1188573⟩ Communication dans un congrès hal-05169433v1
FAST-EVP: An Engine Simulation Tool Gino Bella,Alfredo Buttari,Alessandro de Maio,Francesco del Citto,Salvatore Filipponeet al. International Conference on High Performance Computing and Communications, 2005, Sorrento, Italy. pp.969-978, ⟨10.1007/11557654_108⟩ Communication dans un congrès hal-05267340v1

Poster de conférence (1)

Block low-rank compression in mixed precision for the solution of sparse linear systems Matthieu Gerest,Patrick Amestoy,Olivier Boiteau,Alfredo Buttari,Fabienne Jézéquelet al. Sparse Days conference 2022, Jun 2022, Saint-Girons, France. Poster de conférence hal-03780548v1

Chapitre d'ouvrage (3)

The minimum degree ordering with dynamical constraints Patrick Amestoy,Alfredo Buttari,Abdou Guermouche,Jean-Yves L'Excellent,Bora Uçar Markus Beckers; Johannes Lotz; Viktor Mosenkis; Uwe Naumann. Abstracts of the 5th SIAM Workshop on Combinatorial Scientific Computing, SIAM, pp.36-38, 2011, Technical Report Chapitre d'ouvrage hal-00945083v1
The Multifrontal Method Patrick Amestoy,Alfredo Buttari,Iain S. Duff,Abdou Guermouche,Jean-Yves L'Excellentet al. David Padua. Encyclopedia of Parallel Computing, Springer, pp.1209-1216, 2011, 978-0-387-09765-7. ⟨10.1007/978-0-387-09766-4_86⟩ Chapitre d'ouvrage hal-00787015v1
MUMPS Patrick Amestoy,Alfredo Buttari,Iain S. Duff,Abdou Guermouche,Jean-Yves L'Excellentet al. David Padua. Encyclopedia of Parallel Computing, Springer, pp.1232-1238, 2011, 978-0-387-09766-4. ⟨10.1007/978-0-387-09766-4_204⟩ Chapitre d'ouvrage hal-00787042v1

Brevet (2)

Method for training an artificial intelligence model and associated computer program Théo Beuzeville,Alfredo Buttari,Serge Gratton,Theo Mary,Nicolas Winckler United States, Patent n° : US20250232224A1. 2025 Brevet hal-05219822v1
Method, computer program and device for quantizing a deep neural network Alfredo Buttari,Stéphane Pralet,Théo Beuzeville,Serge Gratton United States, Patent n° : US 2023/0334301. 2023 Brevet hal-04268862v1

Autre publication scientifique (3)

ETP4HPC SRA 6 White Paper - Mathematical Methods and Algorithms Dirk Pleiter,Utz-Uwe Haus,Alfredo Buttari,Ani Anciaux-Sedrakian,Artur Garciaet al. 2025, ⟨10.5281/zenodo.14735612⟩ Autre publication scientifique hal-04919006v1
ETP4HPC SRA White Paper - Programming Environment Paul Carpenter,Gabriel Antoniu,Manuel Arenaz,Olivier Aumage,Jakub Beráneket al. 2024, ⟨10.5281/zenodo.14446622⟩ Autre publication scientifique hal-04905035v1
Overview of MUMPS (A multifrontal Massively Parallel Solver) Patrick Amestoy,Alfredo Buttari,Philippe Combes,Abdou Guermouche,Jean-Yves L'Excellentet al. 2008 Autre publication scientifique hal-00803490v1

Pré-publication, Document de travail (4)

Redundant computations in task-based parallelism with applications to communication-reducing algorithms Emmanuel Agullo,Alfredo Buttari,Abdou Guermouche,Antoine Jego 2025 Pré-publication, Document de travail hal-05176537v1
Mixed precision strategies for preconditioned GMRES: a comprehensive analysis Alfredo Buttari,Xin Liu,Theo Mary,Bastien Vieublé 2025 Pré-publication, Document de travail hal-05071696v1
Adversarial attacks via Sequential Quadratic Programming Théo Beuzeville,Alfredo Buttari,Serge Gratton,Theo Mary,Erkan Ulker 2022 Pré-publication, Document de travail hal-03752184v1
Adversarial attacks via backward error analysis Théo Beuzeville,Pierre Boudier,Alfredo Buttari,Serge Gratton,Théo Maryet al. 2021 Pré-publication, Document de travail hal-03296180v3

Rapport (4)

Task-Based Parallel Programming for Scalable Algorithms: application to Matrix Multiplication Emmanuel Agullo,Alfredo Buttari,Abdou Guermouche,Julien Herrmann,Antoine Jego [Research Report] RR-9461, Inria Bordeaux - Sud-Ouest. 2022, pp.29 Rapport hal-03588491v2
Achieving high-performance with a sparse direct solver on Intel KNL Emmanuel Agullo,Alfredo Buttari,Mikko Byckling,Abdou Guermouche,Ian Masliah [Research Report] RR-9035, Inria Bordeaux Sud-Ouest; CNRS-IRIT; Intel corporation; Université Bordeaux. 2017, pp.15 Rapport (rapport de recherche) hal-01473475v1
Task-based multifrontal QR solver for GPU-accelerated multicore architectures Emmanuel Agullo,Alfredo Buttari,Abdou Guermouche,Florent Lopez [Research Report] IRI/RT--2015--02--FR-r1, IRIT, Toulouse. 2015 Rapport (rapport de recherche) hal-01166312v2
Improving multifrontal methods by means of block low-rank representations Patrick Amestoy,Cleve Ashcraft,Olivier Boiteau,Alfredo Buttari,Jean-Yves L'Excellentet al. [Research Report] INRIA RR-8199, INRIA. 2013 Rapport (rapport de recherche) hal-00776859v1

HDR (1)

Scalability of parallel sparse direct solvers: methods, memory and performance Alfredo Buttari Distributed, Parallel, and Cluster Computing [cs.DC]. Toulouse INP, 2018 HDR tel-01913033v1