Work

A GPU based 3D raytracing algorithm for DUED laser fusion code

Year: 2024

Type: article

Abstract: These days, graphical processing units (GPUs) deliver performance comparable to that of hundreds of CPU cores. This level of performance allows certain classes of simulations to be run in-house on a standard consumer workstation, eliminating the need for a cluster. In this paper, it is shown that medium-resolution, 2D radiation hydrodynamics simulations for laser-driven inertial confinement fusion with realistic 3D laser raytracing can now be conducted on a single consumer device. A novel raytracing module has indeed been developed for the 2D Lagrangian radiation-hydro-nuclear code DUED (Atzeni 1986 Comput. Phys. Commun. 43 107–24; Atzeni et al 2005 Comput. Phys. Commun. 169 153–9) to leverage the computational power of GPUs. By employing 3D raytracing, more realistic investigations of laser-driven plasmas become feasible, with a particular focus on perturbations resulting from non-uniform laser irradiation.

Source: Plasma Physics and Controlled Fusion

DOI: 10.1088/1361-6587/ad7d37

Authors: L Savino, A Schiavi, S Atzeni

Institution: Sapienza University of Rome

Language: English

Topic: Laser-Plasma Interactions and Diagnostics

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,165

Funder: EUROfusion