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ORCIDAlfredo Buttari
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- affiliation: CNRS, IRIT, Toulouse, France
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2020 – today
- 2024
[j26]Patrick Amestoy, Olivier Boiteau, Alfredo Buttari
, Matthieu Gerest, Fabienne Jézéquel, Jean-Yves L'Excellent, Théo Mary:
Communication Avoiding Block Low-Rank Parallel Multifrontal Triangular Solve with Many Right-Hand Sides. SIAM J. Matrix Anal. Appl. 45(1): 148-166 (2024)- [j25]Patrick Amestoy, Alfredo Buttari, Nicholas J. Higham, Jean-Yves L'Excellent, Théo Mary, Bastien Vieuble:
Five-Precision GMRES-Based Iterative Refinement. SIAM J. Matrix Anal. Appl. 45(1): 529-552 (2024) - 2023
- [j24]Patrick Amestoy, Alfredo Buttari, Nicholas J. Higham, Jean-Yves L'Excellent, Théo Mary, Bastien Vieuble:
Combining Sparse Approximate Factorizations with Mixed-precision Iterative Refinement. ACM Trans. Math. Softw. 49(1): 4:1-4:29 (2023) - [j23]Emmanuel Agullo, Alfredo Buttari, Abdou Guermouche, Julien Herrmann, Antoine Jego:
Task-based Parallel Programming for Scalable Matrix Product Algorithms. ACM Trans. Math. Softw. 49(2): 15:1-15:23 (2023) - [c16]Emmanuel Agullo, Alfredo Buttari, Olivier Coulaud, Lionel Eyraud-Dubois, Mathieu Faverge, Alain Franc, Abdou Guermouche, Antoine Jego, Romain Peressoni, Florent Pruvost:
On the Arithmetic Intensity of Distributed-Memory Dense Matrix Multiplication Involving a Symmetric Input Matrix (SYMM). IPDPS 2023: 357-367 - 2022
- [j22]Alfredo Buttari, Markus Huber, Philippe Leleux, Théo Mary, Ulrich Rüde, Barbara I. Wohlmuth:
Block low-rank single precision coarse grid solvers for extreme scale multigrid methods. Numer. Linear Algebra Appl. 29(1) (2022) - 2021
- [j21]Cleve Ashcraft, Alfredo Buttari, Théo Mary:
Block Low-Rank Matrices with Shared Bases: Potential and Limitations of the BLR2 Format. SIAM J. Matrix Anal. Appl. 42(2): 990-1010 (2021) - 2020
- [j20]Alfredo Buttari, Søren Hauberg, Costy Kodsi:
Parallel QR Factorization of Block-Tridiagonal Matrices. SIAM J. Sci. Comput. 42(6): C313-C334 (2020)
2010 – 2019
- 2019
- [j19]Patrick R. Amestoy, Alfredo Buttari, Jean-Yves L'Excellent, Théo Mary:
Bridging the Gap Between Flat and Hierarchical Low-Rank Matrix Formats: The Multilevel Block Low-Rank Format. SIAM J. Sci. Comput. 41(3): A1414-A1442 (2019) - [j18]Alfredo Buttari, Dominique Orban, Daniel Ruiz, David Titley-Péloquin:
A Tridiagonalization Method for Symmetric Saddle-Point Systems. SIAM J. Sci. Comput. 41(5): S409-S432 (2019) - [j17]Patrick R. Amestoy, Alfredo Buttari, Jean-Yves L'Excellent, Théo Mary:
Performance and Scalability of the Block Low-Rank Multifrontal Factorization on Multicore Architectures. ACM Trans. Math. Softw. 45(1): 2:1-2:26 (2019) - 2018
- [b1]Alfredo Buttari:
Scalability of parallel sparse direct solvers: methods, memory and performance. Toulouse INP, France, 2018 - 2017
- [j16]Patrick Amestoy, Alfredo Buttari, Jean-Yves L'Excellent, Théo Mary:
On the Complexity of the Block Low-Rank Multifrontal Factorization. SIAM J. Sci. Comput. 39(4) (2017) - [c15]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:
Pre-exascale Architectures: OpenPOWER Performance and Usability Assessment for French Scientific Community. ISC Workshops 2017: 309-324 - 2016
- [j15]Emmanuel Agullo, Patrick R. Amestoy, Alfredo Buttari, Abdou Guermouche, Jean-Yves L'Excellent, François-Henry Rouet:
Robust Memory-Aware Mappings for Parallel Multifrontal Factorizations. SIAM J. Sci. Comput. 38(3) (2016) - [j14]Emmanuel Agullo, Alfredo Buttari, Abdou Guermouche, Florent Lopez:
Implementing Multifrontal Sparse Solvers for Multicore Architectures with Sequential Task Flow Runtime Systems. ACM Trans. Math. Softw. 43(2): 13:1-13:22 (2016) - [c14]Emmanuel Agullo, George Bosilca, Alfredo Buttari, Abdou Guermouche, Florent Lopez:
Exploiting a Parametrized Task Graph Model for the Parallelization of a Sparse Direct Multifrontal Solver. Euro-Par Workshops 2016: 175-186 - 2015
- [j13]Patrick Amestoy, Cleve Ashcraft, Olivier Boiteau, Alfredo Buttari, Jean-Yves L'Excellent, Clément Weisbecker:
Improving Multifrontal Methods by Means of Block Low-Rank Representations. SIAM J. Sci. Comput. 37(3) (2015) - [c13]Emmanuel Agullo, Alfredo Buttari, Abdou Guermouche, Florent Lopez:
Task-Based Multifrontal QR Solver for GPU-Accelerated Multicore Architectures. HiPC 2015: 54-63 - [c12]Luka Stanisic, Emmanuel Agullo, Alfredo Buttari, Abdou Guermouche, Arnaud Legrand, Florent Lopez, Brice Videau:
Fast and Accurate Simulation of Multithreaded Sparse Linear Algebra Solvers. ICPADS 2015: 481-490 - 2013
- [j12]Laurent Bouchet, Patrick Amestoy, Alfredo Buttari, François-Henry Rouet, Maxime Chauvin:
Simultaneous analysis of large INTEGRAL/SPI datasets: Optimizing the computation of the solution and its variance using sparse matrix algorithms. Astron. Comput. 1: 59-69 (2013) - [j11]Alfredo Buttari:
Fine-Grained Multithreading for the Multifrontal QR Factorization of Sparse Matrices. SIAM J. Sci. Comput. 35(4) (2013) - [c11]Emmanuel Agullo, Alfredo Buttari, Abdou Guermouche, Florent Lopez:
Multifrontal QR Factorization for Multicore Architectures over Runtime Systems. Euro-Par 2013: 521-532 - 2012
- [j10]Salvatore Filippone, Alfredo Buttari:
Object-Oriented Techniques for Sparse Matrix Computations in Fortran 2003. ACM Trans. Math. Softw. 38(4): 23:1-23:20 (2012) - 2011
- [r3]Patrick Amestoy, Alfredo Buttari, Iain S. Duff, Abdou Guermouche, Jean-Yves L'Excellent, Bora Uçar:
Multifrontal Method. Encyclopedia of Parallel Computing 2011: 1209-1216 - [r2]Patrick Amestoy, Alfredo Buttari, Iain S. Duff, Abdou Guermouche, Jean-Yves L'Excellent, Bora Uçar:
Mumps. Encyclopedia of Parallel Computing 2011: 1232-1238 - 2010
- [c10]Alfredo Buttari:
Fine Granularity Sparse QR Factorization for Multicore Based Systems. PARA (2) 2010: 226-236
2000 – 2009
- 2009
- [j9]Marc Baboulin, Alfredo Buttari, Jack J. Dongarra, Jakub Kurzak, Julie Langou, Julien Langou, Piotr Luszczek, Stanimire Tomov:
Accelerating scientific computations with mixed precision algorithms. Comput. Phys. Commun. 180(12): 2526-2533 (2009) - [j8]Alfredo Buttari, Julien Langou, Jakub Kurzak, Jack J. Dongarra:
A class of parallel tiled linear algebra algorithms for multicore architectures. Parallel Comput. 35(1): 38-53 (2009) - 2008
- [j7]Alfredo Buttari, Julien Langou, Jakub Kurzak, Jack J. Dongarra:
Parallel tiled QR factorization for multicore architectures. Concurr. Comput. Pract. Exp. 20(13): 1573-1590 (2008) - [j6]Jakub Kurzak, Alfredo Buttari, Piotr Luszczek, Jack J. Dongarra:
The PlayStation 3 for High-Performance Scientific Computing. Comput. Sci. Eng. 10(3): 84-87 (2008) - [j5]Alfredo Buttari, Jack J. Dongarra, Jakub Kurzak, Piotr Luszczek, Stanimire Tomov:
Using Mixed Precision for Sparse Matrix Computations to Enhance the Performance while Achieving 64-bit Accuracy. ACM Trans. Math. Softw. 34(4): 17:1-17:22 (2008) - [j4]Jakub Kurzak, Alfredo Buttari, Jack J. Dongarra:
Solving Systems of Linear Equations on the CELL Processor Using Cholesky Factorization. IEEE Trans. Parallel Distributed Syst. 19(9): 1175-1186 (2008) - [i2]Marc Baboulin, Alfredo Buttari, Jack J. Dongarra, Jakub Kurzak, Julie Langou, Julien Langou, Piotr Luszczek, Stanimire Tomov:
Accelerating Scientific Computations with Mixed Precision Algorithms. CoRR abs/0808.2794 (2008) - 2007
- [j3]Alfredo Buttari, Pasqua D'Ambra, Daniela di Serafino, Salvatore Filippone:
2LEV-D2P4: a package of high-performance preconditioners for scientific and engineering applications. Appl. Algebra Eng. Commun. Comput. 18(3): 223-239 (2007) - [j2]Alfredo Buttari, Jack J. Dongarra, Julie Langou, Julien Langou, Piotr Luszczek, Jakub Kurzak:
Mixed Precision Iterative Refinement Techniques for the Solution of Dense Linear Systems. Int. J. High Perform. Comput. Appl. 21(4): 457-466 (2007) - [j1]Alfredo Buttari, Victor Eijkhout, Julien Langou, Salvatore Filippone:
Performance Optimization and Modeling of Blocked Sparse Kernels. Int. J. High Perform. Comput. Appl. 21(4): 467-484 (2007) - [c9]Jakub Kurzak, Alfredo Buttari:
Introduction to Programming High Performance Applications on the CELL Broadband Engine. Hot Interconnects 2007: 11 - [c8]Alfredo Buttari, Julien Langou, Jakub Kurzak, Jack J. Dongarra:
Parallel Tiled QR Factorization for Multicore Architectures. PPAM 2007: 639-648 - [r1]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:
Prospectus for a Dense Linear Algebra Software Library. Handbook of Parallel Computing 2007 - [i1]Alfredo Buttari, Julien Langou, Jakub Kurzak, Jack J. Dongarra:
A Class of Parallel Tiled Linear Algebra Algorithms for Multicore Architectures. CoRR abs/0709.1272 (2007) - 2006
- [c7]Alfredo Buttari, Jack J. Dongarra, Jakub Kurzak, Julie Langou, Julien Langou, Piotr Luszczek, Stanimire Tomov:
Exploiting Mixed Precision Floating Point Hardware in Scientific Computations. High Performance Computing Workshop 2006: 19-36 - [c6]Alfredo Buttari, Jack J. Dongarra, Jakub Kurzak, Julien Langou, Piotr Luszczek, Stanimire Tomov:
The Impact of Multicore on Math Software. PARA 2006: 1-10 - [c5]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:
Prospectus for the Next LAPACK and ScaLAPACK Libraries. PARA 2006: 11-23 - [c4]Julie Langou, Julien Langou, Piotr Luszczek, Jakub Kurzak, Alfredo Buttari, Jack J. Dongarra:
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 2006: 113 - [c3]Alfredo Buttari, Jakub Kurzak, Jack J. Dongarra:
Poster reception - Targeting multi-core architectures for linear algebra applications. SC 2006: 162 - 2005
- [c2]Gino Bella, Alfredo Buttari, Alessandro De Maio, Francesco Del Citto, Salvatore Filippone, Fabiano Gasperini:
FAST-EVP: An Engine Simulation Tool. HPCC 2005: 969-978 - 2004
- [c1]Alfredo Buttari, Pasqua D'Ambra, Daniela di Serafino, Salvatore Filippone:
Extending PSBLAS to Build Parallel Schwarz Preconditioners. PARA 2004: 593-602
Coauthor Index
aka: Patrick R. Amestoy
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