Use of a hybrid code for global-scale plasma simulation
Journal of Computational Physics
A 3-D Darwin-EM hybrid PIC code for ion ring studies
Journal of Computational Physics
Parallel and Distribution Simulation Systems
Parallel and Distribution Simulation Systems
The Hybrid Multiscale Simulation Technology: An Introduction with Application to Space and Plasma Physics
3D hybrid simulation code using curvilinear coordinates
Journal of Computational Physics
Journal of Computational Physics
Event-driven, hybrid particle-in-cell simulation: a new paradigm for multi-scale plasma modeling
Journal of Computational Physics
Self-adaptive time integration of flux-conservative equations with sources
Journal of Computational Physics
Journal of Computational Physics
Local adaptive mesh refinement for shock hydrodynamics
Journal of Computational Physics
Simulation of laser-plasma interactions and fast-electron transport in inhomogeneous plasma
Journal of Computational Physics
Parallel discrete event simulations of grid-based models: asynchronous electromagnetic hybrid code
PARA'04 Proceedings of the 7th international conference on Applied Parallel Computing: state of the Art in Scientific Computing
Pegasus: A new hybrid-kinetic particle-in-cell code for astrophysical plasma dynamics
Journal of Computational Physics
Hi-index | 31.45 |
Treatment of disparate timescales remains a major challenge in computational science. Previously we introduced a new asynchronous approach to the explicit time integration of multiscale numerical systems based on partial differential equations and particle techniques - self-adaptive discrete-event simulation (DES). In DES time increments for updates of numerical variables (events) are predicted by imposing small but finite bounds to their changes, and event synchronization requirements are defined with physical rules. The feasibility and superior metrics of DES were demonstrated for several different physical problems in one dimension. Here we extend DES to multiple dimensions by introducing a unidimensional infrastructure for asynchronous simulations on logically uniform meshes. As the first example of this infrastructure we present a new event-driven electromagnetic hybrid code, HYPERS (HYbrid Particle Event-Resolved Simulator). This code is validated in two dimensions against a state-of-the-art time-stepping hybrid code on a numerically challenging problem which describes the interaction between the magnetized plasma flow and a magnetic dipole obstacle. We find that HYPERS achieves significant speedups and remains physically accurate in a broad mesh resolution range, including coarser resolutions where the time-driven code produces numerical artifacts.