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Alfredo Buttari

CNRS Research Director at IRIT
10
Documents

Présentation

I am currently a CNRS (Centre National de la Recherche Scientifique) research director at the IRIT (Institut de Recherche en Informatique de Toulouse) laboratory in Toulouse (France) where I am a member of the APO (Algorithmes Parallèles et Optimisation). My interest are in High Performance Computing, parallel computing, computational linear algebra (numerical software in general). Here is my CV and a short bio: - 2021-present: CNRS research director @ IRIT - 2008-2021: CNRS researcher @ IRIT - 2018: Habilitation à Diriger des Recherches (manuscript, presentation). - 2008: post-doc at INRIA Rhone-Alpes in Lyon (France) where I was a member of the Laboratoire de l'Informatique du Parallelisme (LIP). - 2006-2007: post-doc in the Innovative Computing Laboratory (ICL) lead by Prof. Jack Dongarra at the University of Tennessee Knoxville. - 2003-2006 Ph.D. at Dipartimento Informatica Sistemi e Produzione of University of Rome "Tor Vergata". More info on my web page: https://abuttari.gitlab.io

Publications

897557

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
SEG Annual meeting, Oct 2015, New Orleans, United States. pp.1303-1308, ⟨10.1190/segam2015-5713962.1⟩
Communication dans un congrès hal-01239896v1

3D frequency-domain seismic modeling with a Parallel BLR multifrontal direct solver

Patrick Amestoy , Romain Brossier , Alfredo Buttari , Jean-Yves L'Excellent , Théo Mary
SEG Annual meeting, Oct 2015, New Orleans, United States. pp.3606-3611
Communication dans un congrès hal-01237869v1
Image document

Recent advances in sparse direct solvers

Emmanuel Agullo , Patrick Amestoy , Alfredo Buttari , Abdou Guermouche , Guillaume Joslin
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

3D frequency-domain seismic modeling with a Block Low-Rank algebraic multifrontal direct solver

Clément Weisbecker , Patrick Amestoy , Olivier Boiteau , Romain Brossier , Alfredo Buttari
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

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
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

Improving Multifrontal methods by means of Low-Rank Approximations techniques

Patrick Amestoy , Cleve Ashcraft , Olivier Boiteau , Alfredo Buttari , Jean-Yves L'Excellent
SIAM Conference on Applied Linear Algebra 2012, Jun 2012, Valencia, Spain. pp.A1451-A1474
Communication dans un congrès hal-00789684v1
Image document

Grouping variables in Frontal Matrices to improve Low-Rank Approximations in a Multifrontal Solver

Clément Weisbecker , Patrick Amestoy , Cleve Ashcraft , Olivier Boiteau , Alfredo Buttari
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