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Conference Papers Year : 2007

Gyrokinetic Semi-Lagrangian Parallel Simulation using a Hybrid OpenMP/MPI programming

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.

Dates and versions

hal-00605748 , version 1 (04-07-2011)

Identifiers

Cite

Guillaume Latu, Nicolas Crouseilles, Virginie Grandgirard, Eric Sonnendrücker. Gyrokinetic Semi-Lagrangian Parallel Simulation using a Hybrid OpenMP/MPI programming. 14th European PVM/MPI User's Group Meeting, Sep 2007, Paris, France. pp.356-364, ⟨10.1007/978-3-540-75416-9⟩. ⟨hal-00605748⟩
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