Evaluation of linear solvers for astrophysics transfer problems

  • Authors:
  • Osni Marques;Paulo B. Vasconcelos

  • Affiliations:
  • Lawrence Berkeley National Laboratory, Berkeley, CA;Faculdade de Economia da Universidade do Porto, Porto, Portugal

  • Venue:
  • VECPAR'06 Proceedings of the 7th international conference on High performance computing for computational science
  • Year:
  • 2006

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Abstract

In this work we consider the numerical solution of a radiative transfer equation for modeling the emission of photons in stellar atmospheres. Mathematically, the problem is formulated in terms of a weakly singular Fredholm integral equation defined on a Banach space. Computational approaches to solve the problem are discussed, using direct and iterative strategies that are implemented in open source packages.