GIRAUD , L.

C027 3D Finite-Difference Frequency-Domain Modeling of Acoustic Wave Propagation Using a Massively Parallel Direct Solver H. Ben Hadj Ali* (Géosciences Azur - CNRS) S. Operto (Geosciences Azur - CNRS) J. Virieux (Géosciences Azur - UNSA) P. Amestoy (ENSEEIHT-IRIT) J.Y. L'Excellent (ENS Lyon-INRIA) & L. Giraud (ENSEEIHT-IRIT) SUMMARY We present...

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Designing an efficient modeling tool is a key point for large 3D frequency-domain full-waveform inversion problems. We present a frequency-domain acoustic wave modeling using a hybrid direct-iterative solver based on a parallel domain decomposition method and Schur complement approach. The main interest of mixing solvers is to overcome the huge...

In this paper, we present a new preconditioner method to improve the 1D Wave Concept Iterative Procedure convergence. Some numerical results are presented to illustrate the efficiency of this technique

A physically-based new preconditioner of the 1D Wave Concept Iterative Procedure formulation is presented in this paper. Numerical results are provided to illustrate the efficiency of this technique.

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