Alfredo Buttari

49 papers A 3B 1C 1Misc 3Journal 29Unranked 8
YearRankTypeTitle / Venue / Authors
2025 J jnl
Truncated QR Factorization with Pivoting in Mixed Precision.
SIAM J. Sci. Comput.
Alfredo Buttari, Théo Mary, André Pacteau
2024 J jnl
Communication Avoiding Block Low-Rank Parallel Multifrontal Triangular Solve with Many Right-Hand Sides.
SIAM J. Matrix Anal. Appl.
Patrick Amestoy, Olivier Boiteau, Alfredo Buttari, Matthieu Gerest, Fabienne Jézéquel, Jean-Yves L'Excellent, Théo Mary
2024 J jnl
Five-Precision GMRES-Based Iterative Refinement.
SIAM J. Matrix Anal. Appl.
Patrick Amestoy, Alfredo Buttari, Nicholas J. Higham, Jean-Yves L'Excellent, Théo Mary, Bastien Vieuble
2023 J jnl
Combining Sparse Approximate Factorizations with Mixed-precision Iterative Refinement.
ACM Trans. Math. Softw.
Patrick Amestoy, Alfredo Buttari, Nicholas J. Higham, Jean-Yves L'Excellent, Théo Mary, Bastien Vieuble
2023 A conf
On the Arithmetic Intensity of Distributed-Memory Dense Matrix Multiplication Involving a Symmetric Input Matrix (SYMM).
IPDPS
Emmanuel Agullo, Alfredo Buttari, Olivier Coulaud, Lionel Eyraud-Dubois, Mathieu Faverge, Alain Franc, Abdou Guermouche, Antoine Jego, Romain Peressoni, Florent Pruvost
2023 J jnl
Task-based Parallel Programming for Scalable Matrix Product Algorithms.
ACM Trans. Math. Softw.
Emmanuel Agullo, Alfredo Buttari, Abdou Guermouche, Julien Herrmann, Antoine Jego
2022 J jnl
Block low-rank single precision coarse grid solvers for extreme scale multigrid methods.
Numer. Linear Algebra Appl.
Alfredo Buttari, Markus Huber, Philippe Leleux, Théo Mary, Ulrich Rüde, Barbara I. Wohlmuth
2021 J jnl
Block Low-Rank Matrices with Shared Bases: Potential and Limitations of the BLR
SIAM J. Matrix Anal. Appl.
Cleve Ashcraft, Alfredo Buttari, Théo Mary
2020 J jnl
Parallel
SIAM J. Sci. Comput.
Alfredo Buttari, Søren Hauberg, Costy Kodsi
2019 J jnl
A Tridiagonalization Method for Symmetric Saddle-Point Systems.
SIAM J. Sci. Comput.
Alfredo Buttari, Dominique Orban, Daniel Ruiz, David Titley-Péloquin
2019 J jnl
Bridging the Gap Between Flat and Hierarchical Low-Rank Matrix Formats: The Multilevel Block Low-Rank Format.
SIAM J. Sci. Comput.
Patrick R. Amestoy, Alfredo Buttari, Jean-Yves L'Excellent, Théo Mary
2019 J jnl
Performance and Scalability of the Block Low-Rank Multifrontal Factorization on Multicore Architectures.
ACM Trans. Math. Softw.
Patrick R. Amestoy, Alfredo Buttari, Jean-Yves L'Excellent, Théo Mary
2018 — book
Scalability of parallel sparse direct solvers: methods, memory and performance.
Alfredo Buttari
2017 J jnl
On the Complexity of the Block Low-Rank Multifrontal Factorization.
SIAM J. Sci. Comput.
Patrick Amestoy, Alfredo Buttari, Jean-Yves L'Excellent, Théo Mary
2017 — conf
Pre-exascale Architectures: OpenPOWER Performance and Usability Assessment for French Scientific Community.
ISC Workshops
Gabriel Hautreux, Alfredo Buttari, Arnaud Beck, Victor Cameo, Dimitri Lecas, Dominique Aubert, Emeric Brun, Eric Boyer, Fausto Malvagi, Gabriel Staffelbach, Isabelle d'Ast, Joeffrey Legaux, Ghislain Lartigue, Gilles Grasseau, Guillaume Latu, Juan Escobar Munoz, Julien Bigot, Julien Derouillat, Matthieu Haefele, Nicolas Renon, Philippe Parnaudeau, Philippe Wautelet, Pierre-Francois Lavallee, Pierre Kestener, Rémi Lacroix, Stéphane Requena, Anthony Scemama, Vincent Moureau, Jean-Matthieu Etancelin, Yann Meurdesoif
2016 — conf
Exploiting a Parametrized Task Graph Model for the Parallelization of a Sparse Direct Multifrontal Solver.
Euro-Par Workshops
Emmanuel Agullo, George Bosilca, Alfredo Buttari, Abdou Guermouche, Florent Lopez
2016 J jnl
Implementing Multifrontal Sparse Solvers for Multicore Architectures with Sequential Task Flow Runtime Systems.
ACM Trans. Math. Softw.
Emmanuel Agullo, Alfredo Buttari, Abdou Guermouche, Florent Lopez
2016 J jnl
Robust Memory-Aware Mappings for Parallel Multifrontal Factorizations.
SIAM J. Sci. Comput.
Emmanuel Agullo, Patrick R. Amestoy, Alfredo Buttari, Abdou Guermouche, Jean-Yves L'Excellent, François-Henry Rouet
2015 B conf
Fast and Accurate Simulation of Multithreaded Sparse Linear Algebra Solvers.
ICPADS
Luka Stanisic, Emmanuel Agullo, Alfredo Buttari, Abdou Guermouche, Arnaud Legrand, Florent Lopez, Brice Videau
2015 J jnl
Improving Multifrontal Methods by Means of Block Low-Rank Representations.
SIAM J. Sci. Comput.
Patrick Amestoy, Cleve Ashcraft, Olivier Boiteau, Alfredo Buttari, Jean-Yves L'Excellent, Clément Weisbecker
2015 Misc conf
Task-Based Multifrontal QR Solver for GPU-Accelerated Multicore Architectures.
HiPC
Emmanuel Agullo, Alfredo Buttari, Abdou Guermouche, Florent Lopez
2013 J jnl
Fine-Grained Multithreading for the Multifrontal QR Factorization of Sparse Matrices.
SIAM J. Sci. Comput.
Alfredo Buttari
2013 — conf
Multifrontal QR Factorization for Multicore Architectures over Runtime Systems.
Euro-Par
Emmanuel Agullo, Alfredo Buttari, Abdou Guermouche, Florent Lopez
2013 J jnl
Simultaneous analysis of large
Astron. Comput.
Laurent Bouchet, Patrick Amestoy, Alfredo Buttari, François-Henry Rouet, Maxime Chauvin
2012 J jnl
Object-Oriented Techniques for Sparse Matrix Computations in Fortran 2003.
ACM Trans. Math. Softw.
Salvatore Filippone, Alfredo Buttari
2011 — ch.
Multifrontal Method.
Encyclopedia of Parallel Computing
Patrick Amestoy, Alfredo Buttari, Iain S. Duff, Abdou Guermouche, Jean-Yves L'Excellent, Bora Uçar
2011 — ch.
Mumps.
Encyclopedia of Parallel Computing
Patrick Amestoy, Alfredo Buttari, Iain S. Duff, Abdou Guermouche, Jean-Yves L'Excellent, Bora Uçar
2010 — conf
Fine Granularity Sparse QR Factorization for Multicore Based Systems.
PARA (2)
Alfredo Buttari
2009 J jnl
A class of parallel tiled linear algebra algorithms for multicore architectures.
Parallel Comput.
Alfredo Buttari, Julien Langou, Jakub Kurzak, Jack J. Dongarra
2009 J jnl
Accelerating scientific computations with mixed precision algorithms.
Comput. Phys. Commun.
Marc Baboulin, Alfredo Buttari, Jack J. Dongarra, Jakub Kurzak, Julie Langou, Julien Langou, Piotr Luszczek, Stanimire Tomov
2008 J jnl
Accelerating Scientific Computations with Mixed Precision Algorithms
CoRR
Marc Baboulin, Alfredo Buttari, Jack J. Dongarra, Jakub Kurzak, Julie Langou, Julien Langou, Piotr Luszczek, Stanimire Tomov
2008 J jnl
Parallel tiled QR factorization for multicore architectures.
Concurr. Comput. Pract. Exp.
Alfredo Buttari, Julien Langou, Jakub Kurzak, Jack J. Dongarra
2008 J jnl
Solving Systems of Linear Equations on the CELL Processor Using Cholesky Factorization.
IEEE Trans. Parallel Distributed Syst.
Jakub Kurzak, Alfredo Buttari, Jack J. Dongarra
2008 J jnl
The PlayStation 3 for High-Performance Scientific Computing.
Comput. Sci. Eng.
Jakub Kurzak, Alfredo Buttari, Piotr Luszczek, Jack J. Dongarra
2008 J jnl
Using Mixed Precision for Sparse Matrix Computations to Enhance the Performance while Achieving 64-bit Accuracy.
ACM Trans. Math. Softw.
Alfredo Buttari, Jack J. Dongarra, Jakub Kurzak, Piotr Luszczek, Stanimire Tomov
2007 J jnl
2LEV-D2P4: a package of high-performance preconditioners for scientific and engineering applications.
Appl. Algebra Eng. Commun. Comput.
Alfredo Buttari, Pasqua D'Ambra, Daniela di Serafino, Salvatore Filippone
2007 J jnl
A Class of Parallel Tiled Linear Algebra Algorithms for Multicore Architectures
CoRR
Alfredo Buttari, Julien Langou, Jakub Kurzak, Jack J. Dongarra
2007 — conf
Introduction to Programming High Performance Applications on the CELL Broadband Engine.
Hot Interconnects
Jakub Kurzak, Alfredo Buttari
2007 J jnl
Mixed Precision Iterative Refinement Techniques for the Solution of Dense Linear Systems.
Int. J. High Perform. Comput. Appl.
Alfredo Buttari, Jack J. Dongarra, Julie Langou, Julien Langou, Piotr Luszczek, Jakub Kurzak
2007 Misc conf
Parallel Tiled QR Factorization for Multicore Architectures.
PPAM
Alfredo Buttari, Julien Langou, Jakub Kurzak, Jack J. Dongarra
2007 J jnl
Performance Optimization and Modeling of Blocked Sparse Kernels.
Int. J. High Perform. Comput. Appl.
Alfredo Buttari, Victor Eijkhout, Julien Langou, Salvatore Filippone
2007 — ch.
Prospectus for a Dense Linear Algebra Software Library.
Handbook of Parallel Computing
Yozo Hida, James Demmel, Julien Langou, Jakub Kurzak, Ming Gu, Alfredo Buttari, Stanimire Tomov, Piotr Luszczek, Julie Langou, Osni Marques, Christof Vömel, Xiaoye S. Li, E. Jason Riedy, Jack J. Dongarra, William Kahan, Beresford N. Parlett, David Bindel
2006 Misc conf
Exploiting Mixed Precision Floating Point Hardware in Scientific Computations.
High Performance Computing Workshop
Alfredo Buttari, Jack J. Dongarra, Jakub Kurzak, Julie Langou, Julien Langou, Piotr Luszczek, Stanimire Tomov
2006 A conf
Poster reception - Targeting multi-core architectures for linear algebra applications.
SC
Alfredo Buttari, Jakub Kurzak, Jack J. Dongarra
2006 — conf
Prospectus for the Next LAPACK and ScaLAPACK Libraries.
PARA
James Demmel, Jack J. Dongarra, Beresford N. Parlett, William Kahan, Ming Gu, David Bindel, Yozo Hida, Xiaoye S. Li, Osni Marques, E. Jason Riedy, Christof Vömel, Julien Langou, Piotr Luszczek, Jakub Kurzak, Alfredo Buttari, Julie Langou, Stanimire Tomov
2006 — conf
The Impact of Multicore on Math Software.
PARA
Alfredo Buttari, Jack J. Dongarra, Jakub Kurzak, Julien Langou, Piotr Luszczek, Stanimire Tomov
2006 A conf
Tools and techniques for performance - Exploiting the performance of 32 bit floating point arithmetic in obtaining 64 bit accuracy (revisiting iterative refinement for linear systems).
SC
Julie Langou, Julien Langou, Piotr Luszczek, Jakub Kurzak, Alfredo Buttari, Jack J. Dongarra
2005 C conf
FAST-EVP: An Engine Simulation Tool.
HPCC
Gino Bella, Alfredo Buttari, Alessandro De Maio, Francesco Del Citto, Salvatore Filippone, Fabiano Gasperini
2004 — conf
Extending PSBLAS to Build Parallel Schwarz Preconditioners.
PARA
Alfredo Buttari, Pasqua D'Ambra, Daniela di Serafino, Salvatore Filippone