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official release of the LIGGGHTS® DEM software by DCS Computing. For further info, forums, and bug reports, please visit http://www.cfdem.com. For the DEM software Aspherix® by DCS Computing that replaces LIGGGHTS, please visit https://www.aspherix-dem.com/

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Aspherix® is the successor of LIGGGHTS®

Aspherix® is available under commercial license and combines DCS’s learnings from the development of LIGGGHTS® and a large set of new, cutting edge features. For more information, please visit https://www.aspherix-dem.com/.

Cronology of the development:

  • LAMMPS: core development by Sandia Corporation since 2003
  • LIGGGHTS® core development by DCS Computing GmbH and JKU Linz since 2009
  • Aspherix®: core development by DCS Computing GmbH since 2019

LIGGGHTS®-PUBLIC

LIGGGHTS®-PUBLIC is an Open Source Discrete Element Method Particle Simulation Software, distributed by DCS Computing GmbH, Linz, Austria. LIGGGHTS® is a registered trade marks of DCS Computing GmbH, the producer of the LIGGGHTS® software; see http://www.cfdem.com/terms-trademark-policy for details.

LIGGGHTS®-PUBLIC is open-source, distributed under the terms of the GNU Public License, version 2 or later. LIGGGHTS®-PUBLIC is part of CFDEM(R)project: www.liggghts.com | www.cfdem.com Core developer and main author: Christoph Kloss, [email protected]

LIGGGHTS® version information

All LIGGGHTS® versions are based on a specific version of LIGGGHTS®, as printed in the file src/version.h. LIGGGHTS® versions are identidied by a version number (e.g. ‘3.0’), a branch name (which is ‘LIGGGHTS®-PUBLIC’ for your release of LIGGGHTS), compilation info (date / time stamp and user name), and a LAMMPS version number (which is the LAMMPS version that the LIGGGHTS®-PUBLIC release is based on). The LAMMPS “version” is the date when it was released, such as 1 May 2010.

If you browse the HTML doc pages on the LIGGGHTS®-PUBLIC website (https://www.cfdem.com/media/DEM/docu/Manual.html), they always describe the most current version of LIGGGHTS®-PUBLIC. If you browse the HTML doc pages included in your tarball, they describe the version you have.

LIGGGHTS® and its ancestor LAMMPS

Some parts of LIGGGHTS® are based on LAMMPS. LAMMPS stands for Large-scale Atomic/Molecular Massively Parallel Simulator. LAMMPS is Copyright (2003) Sandia Corporation. Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation, the U.S. Government retains certain rights in this software. This software is distributed under the GNU General Public License.

LAMMPS is a classical molecular dynamics simulation code designed to run efficiently on parallel computers. It was developed at Sandia National Laboratories, a US Department of Energy facility, with funding from the DOE. It is an open-source code, distributed freely under the terms of the GNU Public License (GPL).

The primary author of LAMMPS is Steve Plimpton, who can be emailed at [email protected]. The LAMMPS WWW Site at lammps.sandia.gov has more information about the code and its uses.

Structure

The LIGGGHTS® distribution includes the following files and directories:

  • README: this file
  • LICENSE: the GNU General Public License (GPL)
  • doc: documentation
  • examples: simple example simulation setups
  • lib: libraries LIGGGHTS® can be linked with
  • python: Python wrapper on LIGGGHTS® as a library
  • src: source files

Point your browser at any of these files to get started:

  • doc/Manual.html: the manual
  • doc/Section_intro.html: hi-level introduction
  • doc/Section_start.html: how to build and use

Copyrights

  • Copyright 2012-now: DCS Computing GmbH, Linz
  • Copyright 2009-2015: JKU Linz Some parts of LIGGGHTS® are based on LAMMPS and Copyright on these parts is held by Sandia Corporation and other parties. Info on LAMMPS below Some parts of LIGGGHTS® are contributied by other parties, which are holding the Copyright. This is listed in each file of the distribution.

How to cite LIGGGHTS®

If you are using PhasicFlow in your research or industrial work, cite the following article:

@article{kloss2012models,
  title={Models, algorithms and validation for opensource DEM and CFD--DEM},
  author={Kloss, Christoph and Goniva, Christoph and Hager, Alice and Amberger, Stefan and Pirker, Stefan},
  journal={Progress in Computational Fluid Dynamics, an International Journal},
  volume={12},
  number={2-3},
  pages={140--152},
  year={2012},
  publisher={Inderscience Publishers}
}

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official release of the LIGGGHTS® DEM software by DCS Computing. For further info, forums, and bug reports, please visit http://www.cfdem.com. For the DEM software Aspherix® by DCS Computing that replaces LIGGGHTS, please visit https://www.aspherix-dem.com/

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