Gyrokinetic Semi-lagrangian Parallel Simulation Using a Hybrid OpenMP/MPI Programming

  • G. Latu
  • N. Crouseilles
  • V. Grandgirard
  • E. Sonnendrücker
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4757)

Abstract

This paper describes a parallel implementation of a numerical solver for the Vlasov equation. The solver is based on a kinetic model describing the motion of charged particles in a plasma. The evolution of the distribution of particles in phase space is computed with an explicit method, and we take into account the self-consistent electric field through the coupling with a Poisson type equation. In this paper, we focus on a recently developed 5D parallel numerical application dedicated to gyrokinetic simulation of tokamak systems and ITG turbulence simulation. A semi-Lagrangian Vlasov solver is used. A specific cubic spline interpolation allows us to formulate a domain decomposition method. A hybrid MPI/OpenMP paradigm was used to benefit from a large number of processors while reducing communication costs.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2007

Authors and Affiliations

  • G. Latu
    • 1
  • N. Crouseilles
    • 2
  • V. Grandgirard
    • 3
  • E. Sonnendrücker
    • 2
  1. 1.INRIA/Scalapplix project & Strasbourg 1 University, LaBRI, 341 cours Libération, 33405 Talence CedexFrance
  2. 2.INRIA/Calvi project & Strasbourg 1 University, IRMA, 7 rue Descartes, 67084 Strasbourg CedexFrance
  3. 3.CEA/DSM/DRFC, Association Euratom-CEA, Cadarache, 13108 St Paul-lez-DuranceFrance

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