Title: Fast Kinetic Scheme : efficient MPI parallelization strategy for 3D Boltzmann equation,
Abstract: In this paper we present a parallelization strategy on distributed memory
systems for the Fast Kinetic Scheme --- a semi-Lagrangian scheme developed in
[J. Comput. Phys., Vol. 255, 2013, pp 680-698] for solving kinetic equations.
The original algorithm was proposed for the BGK approximation of the collision
kernel. In this work we deal with its extension to the full Boltzmann equation
in six dimensions, where the collision operator is resolved by means of fast
spectral method. We present close to ideal scalability of the proposed
algorithm on tera- and peta-scale systems.