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A parallel algebraic multigrid solver for finite element method based source localization in the human brain

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Computing and Visualization in Science

Abstract.

Time plays an important role in medical and neuropsychological diagnosis and research. In the field of Electro- and MagnetoEncephaloGraphy (EEG/MEG) source localization, a current distribution in the human brain is reconstructed noninvasively by means of measured fields outside the head. High resolution finite element modeling for the field computation leads to a sparse, large scale, linear equation system with many different right hand sides to be solved. The presented solution process is based on a parallel algebraic multigrid method. It is shown that very short computation times can be achieved through the combination of the multigrid technique and the parallelization on distributed memory computers. A solver time comparison to a classical parallel Jacobi preconditioned conjugate gradient method is given.

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Authors and Affiliations

  1. Max Planck Institute for Mathematics in the Sciences, Leipzig, Germany (http://www.mis.mpg.de), , , , , , DE

    C.H. Wolters

  2. SFB F013 “Numerical and Symbolic Scientific Computing”, Johannes Kepler University Linz, Austria (http://www.sfb013.uni-linz.ac.at), , , , , , AT

    M. Kuhn & S. Reitzinger

  3. Max Planck Institute of Cognitive Neuroscience, Leipzig, Germany (http://www.cns.mpg.de), , , , , , DE

    A. Anwander

Authors
  1. C.H. Wolters
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  2. M. Kuhn
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  3. A. Anwander
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  4. S. Reitzinger
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Additional information

Received: 13 July 2001 / Accepted: 19 December 2001

RID="*"

ID="*"Offprint requests: Carsten Wolters, MPI für neuropsychologische Forschung, MEG-Gruppe, Muldentalweg 9, 04828 Bennewitz, Germany (E-mail: wolters@cns.mpg.de)

Communicated by G. Wittum

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Wolters, C., Kuhn, M., Anwander, A. et al. A parallel algebraic multigrid solver for finite element method based source localization in the human brain. Comput Visual Sci 5, 165–177 (2002). https://doi.org/10.1007/s00791-002-0098-0

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  • DOI: https://doi.org/10.1007/s00791-002-0098-0

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