Wednesday, November 21, 2012

1211.4575 (Troels Haugboelle et al.)

Photon-Plasma: a modern high-order particle-in-cell code    [PDF]

Troels Haugboelle, Jacob Trier Fredriksen, Aake Nordlund
We present the Photon-Plasma code, a modern high order charge conserving particle-in-cell code used for simulating relativistic plasmas. The code is using a high order implicit field solver and a novel high order charge conserving interpolation scheme for particle-to-cell interpolation and charge deposition. It includes powerful diagnostics tools with on-the-fly particle tracking, synthetic spectra integration, and 2D volume slicing, and a new method to correctly account for radiative cooling in the simulations. A robust technique for (time-dependent) particle and field fluxes on the boundaries is also presented. Using a hybrid OpenMP and MPI approach the code scales efficiently from 8 to more than 250.000 cores with almost linear scale up on a range of architectures. The code is tested with the classical benchmarks particle heating, cold beam instability, and two-stream instability. We also present particle-in-cell simulations of the Kelvin-Helmholtz instability, and new results on radiative collisionless shocks.
View original: http://arxiv.org/abs/1211.4575

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