Parallelization of semi-Lagrangian Vlasov codes
نویسندگان
چکیده
منابع مشابه
Conservative semi-Lagrangian schemes for Vlasov equations
Conservative methods for the numerical solution of the Vlasov equation are developed in the context of the one-dimensional splitting. In the case of constant advection, these methods and the traditional semi-Lagrangian ones are proven to be equivalent, but the conservative methods offer the possibility to add adequate filters in order to ensure the positivity. In the non constant advection case...
متن کاملDiscontinuous Galerkin Semi-lagrangian Method for Vlasov-poisson
Abstract. We present a discontinuous Galerkin scheme for the numerical approximation of the onedimensional periodic Vlasov-Poisson equation. The scheme is based on a Galerkin-characteristics method in which the distribution function is projected onto a space of discontinuous functions. We present comparisons with a semi-Lagrangian method to emphasize the good behavior of this scheme when applie...
متن کامل1 . 1 Semi - Lagrangian Vlasov Codes for the Transport of Intense Particle Beams in the 4 D transverse phase - space
Particle In Cell (PIC) simulations have proven very efficient for the simulation of particle beams in accelerators, in particular for low intensity beams. However, for very intense beams as those needed e.g. for heavy ion fusion, their inherent noise and slow convergence when the number of particles increases might not make them the most efficient tool. This is why we have been investigating fo...
متن کاملParallelization of an Adaptive Vlasov Solver
This paper presents an efficient parallel implementation of a Vlasov solver. Our implementation is based on an adaptive numerical scheme of resolution. The underlying numerical method uses a dyadic mesh which is particularly well suited to manage data locality. We have developed an adapted data distribution pattern based on a division of the computational domain into regions and integrated a lo...
متن کاملConvergence of classes of high-order semi-Lagrangian schemes for the Vlasov-Poisson system
In this paper we present some classes of high-order semi-Lagrangian schemes for solving the periodic one-dimensional Vlasov-Poisson system in phase-space on uniform grids. We prove that the distribution function f(t, x, v) and the electric field E(t, x) converge in the L2 norm with a rate of O ( ∆t + h + hm+1 ∆t ) , where m is the degree of the polynomial reconstruction, and ∆t and h are respec...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Plasma Physics
سال: 1999
ISSN: 0022-3778,1469-7807
DOI: 10.1017/s0022377899007527