PartExa - A Particle Library for the Exa-Scale

PartExa is an open-source particle library written in C++ using state-of-the-art programming techniques. PartExa strongly depends on the finite element library deal.II along with p4est for parallel distributed adaptive quadtrees and octrees. deal.II provides basic particle functionality with a strong focus on efficient data structures and aspects of parallelization.

The major features of PartExa include

  • generic neighbor search algorithms for particle-particle, particle-cell, particle-face, and particle-vertex pairs,

  • multiple phases and transition of particles between phases,

  • cluster of particles that are connected by (rigid) bonds, and

  • evaluation routines for a variety of particle methods such as the Discrete Element Method (DEM), Smoothed Particle Hydrodynamics (SPH), and Peridynamics (PD).

Making use of the sophisticated interfaces and data structures provided by deal.II facilitates the coupling of PartExa with other deal.II-based programs.