6.1. Standard packages

This is the list of standard packages in LAMMPS. The link for each package name gives more details.

Standard packages are supported by the LAMMPS developers and are written in a syntax and style consistent with the rest of LAMMPS. This means the developers will answer questions about them, debug and fix them if necessary, and keep them compatible with future changes to LAMMPS.

The “Example” column is a sub-directory in the examples directory of the distribution which has an input script that uses the package. E.g. “peptide” refers to the examples/peptide directory; USER/atc refers to the examples/USER/atc directory. The “Library” column indicates whether an extra library is needed to build and use the package:

• no = no library

• sys = system library: you likely have it on your machine

• int = internal library: provided with LAMMPS, but you may need to build it

• ext = external library: you will need to download and install it on your machine

Package	Description	Doc page	Example	Library
ASPHERE	aspherical particle models	Howto spherical	ellipse	no
BODY	body-style particles	Howto body	body	no
CLASS2	class 2 force fields	pair_style lj/class2	n/a	no
COLLOID	colloidal particles	atom_style colloid	colloid	no
COMPRESS	I/O compression	dump */gz	n/a	sys
CORESHELL	adiabatic core/shell model	Howto coreshell	coreshell	no
DIPOLE	point dipole particles	pair_style dipole/cut	dipole	no
GPU	GPU-enabled styles	Section gpu	Benchmarks	int
GRANULAR	granular systems	Howto granular	pour	no
KIM	OpenKIM wrapper	pair_style kim	kim	ext
KOKKOS	Kokkos-enabled styles	Speed kokkos	Benchmarks	no
KSPACE	long-range Coulombic solvers	kspace_style	peptide	no
LATTE	quantum DFTB forces via LATTE	fix latte	latte	ext
MANYBODY	many-body potentials	pair_style tersoff	shear	no
MC	Monte Carlo options	fix gcmc	n/a	no
MESSAGE	client/server messaging	message	message	int
MISC	miscellaneous single-file commands	n/a	no	no
MOLECULE	molecular system force fields	Howto bioFF	peptide	no
MPIIO	MPI parallel I/O dump and restart	dump	n/a	no
MSCG	multi-scale coarse-graining wrapper	fix mscg	mscg	ext
OPT	optimized pair styles	Speed opt	Benchmarks	no
PERI	Peridynamics models	pair_style peri	peri	no
POEMS	coupled rigid body motion	fix poems	rigid	int
PYTHON	embed Python code in an input script	python	python	sys
QEQ	QEq charge equilibration	fix qeq	qeq	no
REPLICA	multi-replica methods	Howto replica	tad	no
RIGID	rigid bodies and constraints	fix rigid	rigid	no
SHOCK	shock loading methods	fix msst	n/a	no
SNAP	quantum-fitted potential	pair_style snap	snap	no
SPIN	magnetic atomic spin dynamics	Howto spins	SPIN	no
SRD	stochastic rotation dynamics	fix srd	srd	no
VORONOI	Voronoi tesselation	compute voronoi/atom	n/a	ext