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

@article{Weisbecker20133DFS,
  title={3D frequency-domain seismic modeling with a Block Low-Rank algebraic multifrontal direct solver},
  author={Cl{\'e}ment Weisbecker and P. Amestoy and O. Boiteau and R. Brossier and A. Buttari and J. L’Excellent and S. Operto and J. Virieux},
  journal={Seg Technical Program Expanded Abstracts},
  year={2013}
}
Three-dimensional frequency-domain full waveform inversion of fixed-spread data can be efficiently performed in the viscoacoustic approximation when seismic modeling is based on a sparse direct solver. We present a new 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 show some preliminary simulations in the 3D… Expand
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