Lammps is a package for classical molecular dynamics. Lammps can be used for large calculations (up to tens of millions of atoms). LAMMPS supports most two-particle and multi-particle short-range potentials.
Ewald and PPPM (Particle-particle particle-mesh) methods are implemented to calculate forces in systems with Coulomb interaction. Besides CBM, LAMMPS can be used to perform calculations of mesoscopic systems and colloidal solutions. For this purpose, the methods of peridynamics, DPD (dissipative particle dynamics), SRD (stochastic rotational dynamics) are implemented.
It is possible to write the atomic configurations to a text or binary file. The initial configuration of atoms for calculation can be both generated in the program and read from a binary/text file.
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