Bibtex de la publication

@InProceedings{ Am2015.13,
author = {Amestoy, Patrick and Brossier, Romain and Buttari, Alfredo and L'Excellent, Jean-Yves and Mary, Théo and Métivier, Ludovic and Miniussi, Alain and Operto, Stéphane and Virieux, Jean and Weisbecker, Clément},
title = "{3D frequency-domain seismic modeling with a Parallel BLR multifrontal direct solver (regular paper)}",
booktitle = "{Society of Exploration Geophysicists annual meeting (SEG), New-Orleans (USA), 18/10/2015-23/10/2015}",
editor = {Schneider, Robert Vincent},
year = {2015},
publisher = {Society of Exploration Geophysicists},
address = {},
pages = {(on line)},
language = {anglais},
URL = { -},
abstract = {Three-dimensional frequency-domain full waveform inversion (FWI) of fixed-spread data can be efficiently performed in the visco-acoustic approximation when seismic modeling is based on a sparse direct solver. We present a parallel algebraic Block Low-Rank (BLR) multifrontal solver which provides an approximate solution of the time-harmonic wave equation with a reduced operation count, memory demand, and volume of communication relative to the full-rank solver. We analyze the parallel efficiency and the accuracy of the solver with a realistic FWI case study from the Valhall oil field.}