Enabling particle applications for exascale computing platforms

SM Mniszewski, J Belak, JL Fattebert… - … Journal of High …, 2021 - journals.sagepub.com
The Exascale Computing Project (ECP) is invested in co-design to assure that key
applications are ready for exascale computing. Within ECP, the Co-design Center for …

Energy-conserving time propagation for a structure-preserving particle-in-cell Vlasov–Maxwell solver

K Kormann, E Sonnendrücker - Journal of Computational Physics, 2021 - Elsevier
This paper discusses energy-conserving time-discretizations for finite element particle-in-
cell discretizations of the Vlasov–Maxwell system. A geometric spatially discrete system can …

On numerical energy conservation for an implicit particle-in-cell method coupled with a binary Monte-Carlo algorithm for Coulomb collisions

JR Angus, A Link, A Friedman, D Ghosh… - Journal of Computational …, 2022 - Elsevier
Conventional particle-in-cell (PIC) methods suffer from enhanced numerical heating (explicit
PIC) or cooling (semi-implicit PIC) when coupled with a binary Monte-Carlo algorithm for …

Accurately simulating nine-dimensional phase space of relativistic particles in strong fields

F Li, VK Decyk, KG Miller, A Tableman… - Journal of …, 2021 - Elsevier
Next-generation high-power laser systems that can be focused to ultra-high intensities
exceeding 10 23 W/cm 2 are enabling new physics regimes and applications. The physics of …

An implicit, conservative and asymptotic-preserving electrostatic particle-in-cell algorithm for arbitrarily magnetized plasmas in uniform magnetic fields

G Chen, L Chacón - Journal of Computational Physics, 2023 - Elsevier
We introduce a new electrostatic particle-in-cell algorithm capable of using large timesteps
compared to particle gyro-period under a uniform external magnetic field. The algorithm …

The collisional particle-in-cell method for the Vlasov–Maxwell–Landau equations

R Bailo, JA Carrillo, J Hu - Journal of Plasma Physics, 2024 - cambridge.org
We introduce an extension of the particle-in-cell method that captures the Landau collisional
effects in the Vlasov–Maxwell–Landau equations. The method arises from a regularisation …

Rubrics for charge conserving current map** in finite element electromagnetic particle in cell methods

ZD Crawford, S O'Connor, J Luginsland… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
Modeling of kinetic plasmas using electromagnetic particle in cell (EM-PIC) methods is a
well worn problem, in that methods developed have been used extensively both …

A pseudospectral implicit particle-in-cell method with exact energy and charge conservation

LF Ricketson, G Chen - Computer Physics Communications, 2023 - Elsevier
The standard particle-in-cell (PIC) method employs explicit finite-difference (FD) schemes,
such as the leap-frog scheme, for spatial and temporal integrations. In this study, we …

An implicit particle code with exact energy and charge conservation for electromagnetic studies of dense plasmas

JR Angus, W Farmer, A Friedman, D Ghosh… - Journal of …, 2023 - Elsevier
A collisional particle code based on implicit energy-and charge-conserving methods is
presented. A modified version of the particle-suppressed Jacobian-Free Newton-Krylov …

An asymptotic-preserving and energy-conserving particle-in-cell method for Vlasov–Maxwell equations

L Ji, Z Yang, Z Li, D Wu, S **, Z Xu - Journal of Mathematical Physics, 2023 - pubs.aip.org
In this paper, we develop an asymptotic-preserving and energy-conserving (APEC) Particle-
In-Cell (PIC) algorithm for the Vlasov–Maxwell system. This algorithm not only guarantees …