LAMMPS: Difference between revisions

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simplify and reduce introduction
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= General =
= General =


'''LAMMPS''' is a classical molecular dynamics code, and an acronym for '''L'''arge-scale '''A'''tomic / '''M'''olecular '''M'''assively '''P'''arallel '''S'''imulator. LAMMPS is distributed by [http://www.sandia.gov/  Sandia National Laboratories], a US Department of Energy laboratory. The main authors of LAMMPS are listed on this page along with contact information and other contributors. Funding for LAMMPS development has come primarily from DOE (OASCR, OBER, ASCI, LDRD, Genomes-to-Life) and is [http://lammps.sandia.gov/funding.html acknowledged here].  
'''LAMMPS''' is a classical molecular dynamics code, and an acronym for '''L'''arge-scale '''A'''tomic / '''M'''olecular '''M'''assively '''P'''arallel '''S'''imulator. LAMMPS is distributed by [http://www.sandia.gov/  Sandia National Laboratories], a US Department of Energy laboratory.  


* '''Project web site:''' http://lammps.sandia.gov/
* '''Project web site:''' http://lammps.sandia.gov/
* '''Documentation''': [http://lammps.sandia.gov/doc/Manual.html Online Manual].
* '''Documentation''': [http://lammps.sandia.gov/doc/Manual.html Online Manual].
* '''Features:''' http://lammps.sandia.gov/features.html
* '''Downloads:''' http://lammps.sandia.gov/download.html
* '''GitHub:''' https://github.com/lammps/lammps
* '''Mailing List:''' http://lammps.sandia.gov/mail.html
* '''Mailing List:''' http://lammps.sandia.gov/mail.html


= Code Layout =
LAMMPS is parallelized with [[MPI]] and [[OpenMP]], and can run on [[Using GPUs with Slurm|GPU]]s.
 
* C++ and Object-Oriented approach.
* Parallelization via MPI and OpenMP; runs on GPU.
* Is invoked by commands through input scripts.
* Possibility to customize the output.
* Could be interfaced with other codes.


= Force fields and examples =
= Force fields and examples =


== Force fields classified by Material ==
== Force fields classified by material ==


* '''Biomolecules:''' CHARMM, AMBER, OPLS, COMPASS (class 2), long-range Coulombics via PPPM, point dipoles, ...
* '''Biomolecules:''' CHARMM, AMBER, OPLS, COMPASS (class 2), long-range Coulombics via PPPM, point dipoles, ...
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* '''Hybrid:''' can use combinations of potentials for hybrid systems: water on metal, polymers/semiconductor interface, colloids in solution, …
* '''Hybrid:''' can use combinations of potentials for hybrid systems: water on metal, polymers/semiconductor interface, colloids in solution, …


== Potential classified by Functional Form ==
== Potential classified by functional form ==


* '''Pairwise potentials:''' Lennard-Jones, Buckingham, ...
* '''Pairwise potentials:''' Lennard-Jones, Buckingham, ...
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