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hal-01334113v2  Journal articles
Emmanuel AgulloPatrick AmestoyAlfredo ButtariAbdou GuermoucheJean-Yves l'Excellent et al.  Robust memory-aware mappings for parallel multifrontal factorizations
SIAM Journal on Scientific Computing, Society for Industrial and Applied Mathematics, 2016, 38 (3), pp.23
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hal-01220611v1  Conference papers
Emmanuel AgulloAlfredo ButtariAbdou GuermoucheFlorent Lopez. Multifrontal QR Factorization for Multicore Architectures over Runtime Systems
19th International Conference Euro-Par (EuroPar 2013), Aug 2013, Aachen, Germany. pp. 521-532
hal-00789698v1  Conference papers
Patrick AmestoyAlfredo ButtariAbdou GuermoucheJean-Yves l'ExcellentMohamed W. Sid-Lakhdar. Exploiting Multithreaded Tree Parallelism for Multicore Systems in a Parallel Multifrontal Solver
SIAM Conference on Parallel Processing for Scientific Computing (SIAM PP12), Feb 2012, Savannah, GA, United States
hal-00924660v1  Conference papers
Patrick AmestoyOlivier BoiteauAlfredo ButtariGuillaume JoslinJean-Yves l'Excellent et al.  Shared memory parallelism and low-rank approximation techniques applied to direct solvers in FEM simulation (regular paper)
IEEE International Conference on the Computation of Electromagnetic Fields (COMPUMAG), 2013, Budapest, Hungary
hal-00924638v1  Conference papers
Clement WeisbeckerPatrick AmestoyOlivier BoiteauRomain BrossierAlfredo Buttari et al.  3D frequency-domain seismic modeling with a Block Low-Rank algebraic multifrontal direct solver
SEG Technical Program Expanded Abstracts, SEG annual meeting, Houston, TX, USA, 2013, Houston, Texas, United States. ⟨10.1190/segam2013-0603.1⟩
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hal-01122471v1  Journal articles
Alfredo Buttari. Fine-Grained Multithreading for the Multifrontal QR Factorization of Sparse Matrices
SIAM Journal on Scientific Computing, Society for Industrial and Applied Mathematics, 2013, vol. 35 (n° 4), pp. 323-345. ⟨10.1137/110846427⟩
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hal-01322230v3  Journal articles
Patrick AmestoyAlfredo ButtariJean-Yves l'ExcellentThéo Mary. On the Complexity of the Block Low-Rank Multifrontal Factorization
SIAM Journal on Scientific Computing, Society for Industrial and Applied Mathematics, 2016, 39 (4), pp.34. ⟨10.1137/16M1077192⟩
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hal-01774642v3  Journal articles
Patrick AmestoyAlfredo ButtariJean-Yves l'ExcellentThéo Mary. Bridging the gap between flat and hierarchical low-rank matrix formats: the multilevel BLR format
SIAM Journal on Scientific Computing, Society for Industrial and Applied Mathematics, 2019, 41 (3), pp.A1414-A1442. ⟨10.1137/18M1182760⟩
hal-01237169v1  Journal articles
Patrick R. AmestoyCleve AshcraftOlivier BoiteauAlfredo ButtariJean-Yves l'Excellent et al.  Improving Multifrontal Methods by Means of Block Low-Rank Representations
SIAM Journal on Scientific Computing, Society for Industrial and Applied Mathematics, 2015, 37 (3), pp.A1451-A1474. ⟨10.1137/120903476⟩
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tel-01913033v1  Habilitation à diriger des recherches
Alfredo Buttari. Scalability of parallel sparse direct solvers: methods, memory and performance
Distributed, Parallel, and Cluster Computing [cs.DC]. Toulouse INP, 2018
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inria-00581561v1  Conference papers
Clement WeisbeckerPatrick AmestoyCleve AshcraftOlivier BoiteauAlfredo Buttari et al.  Grouping variables in Frontal Matrices to improve Low-Rank Approximations in a Multifrontal Solver
International Conference On Preconditioning Techniques For Scientific And Industrial Applications, Preconditioning 2011, May 2011, Bordeaux, France
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inria-00580434v1  Conference papers
Pasqua d'AmbraAlfredo ButtariDaniela Di SerafinoSalvatore FilipponeSimone Gentile et al.  A Novel Aggregation Method based on Graph Matching for Algebraic MultiGrid Preconditioning of Sparse Linear Systems
International Conference On Preconditioning Techniques For Scientific And Industrial Applications, Preconditioning 2011, May 2011, Bordeaux, France
hal-00726644v1  Conference papers
François-Henry RouetEmmanuel AgulloPatrick R. AmestoyAlfredo ButtariAbdou Guermouche et al.  Robust Memory-Aware Mappings for Parallel Multifrontal Factorizations
SIAM Conference on Parallel Processing for Scientific Computing (SIAM PP 2012), Feb 2012, Savannah, Georgia, United States
hal-02421046v1  Journal articles
Jakub KurzakAlfredo ButtariJack Dongarra. Solving Systems of Linear Equations on the CELL Processor Using Cholesky Factorization
IEEE Transactions on Parallel and Distributed Systems, Institute of Electrical and Electronics Engineers, 2008, 19 (9), pp.1175-1186. ⟨10.1109/TPDS.2007.70813⟩
hal-02073725v1  Conference papers
Emmanuel AgulloAlfredo ButtariAbdou GuermoucheArnaud LegrandIan Masliah et al.  Simulation of a Sparse Direct Solver on Heterogeneous Systems using Starpu and Simgrid
CSE 2019 - SIAM Conference on Computational Science and Engineering, Feb 2019, Spokane, United States
hal-00787042v1  Book sections
Patrick AmestoyAlfredo ButtariIain S. DuffAbdou GuermoucheJean-Yves l'Excellent et al.  MUMPS
David Padua. Encyclopedia of Parallel Computing, Springer, pp.1232-1238, 2011, ⟨10.1007/978-0-387-09766-4_204⟩
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hal-01180272v2  Conference papers
Luka StanisicEmmanuel AgulloAlfredo ButtariAbdou GuermoucheArnaud Legrand et al.  Fast and Accurate Simulation of Multithreaded Sparse Linear Algebra Solvers
The 21st IEEE International Conference on Parallel and Distributed Systems, Dec 2015, Melbourne, Australia
hal-00945083v1  Book sections
Patrick AmestoyAlfredo ButtariAbdou GuermoucheJean-Yves l'ExcellentBora Uçar. The minimum degree ordering with dynamical constraints
M. Beckers and J. Lotz and V. Mosenkis and U. Naumann. Abstracts of the 5th SIAM Workshop on Combinatorial Scientific Computing, SIAM, pp.36-38, 2011, Technical Report
hal-01060301v1  Conference papers
Emmanuel AgulloPatrick R. AmestoyAlfredo ButtariAbdou GuermoucheGuillaume Joslin et al.  Recent advances in sparse direct solvers
SMiRT 2013 - 22nd International Conference on Structural Mechanics in Reactor Technology, Aug 2013, San Francisco, United States. pp.1-10
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hal-02419121v1  Journal articles
Salvatore FilipponeAlfredo Buttari. Object-Oriented Techniques for Sparse Matrix Computations in Fortran 2003
ACM Transactions on Mathematical Software, Association for Computing Machinery, 2012, 38 (4), pp.1-20. ⟨10.1145/2331130.2331131⟩