LAMMPS: OS X with Homebrew

OS X with Homebrew

LAMMPS can be downloaded, built, and configured for OS X easily with Homebrew.

Paste that at a Terminal prompt:

ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

Only four of the LAMMPS packages are unavailable at this time because of additional needs not yet met: KIM, GPU, USER-CUDA, USER-ATC.
After installing Homebrew, you can install LAMMPS on your system with the following commands:

% brew tap homebrew/science
% brew install lammps              # serial version
% brew install lammps --with-mpi   # mpi support 

This will install the executable "lammps", a python module named "lammps", and additional resources with all the standard packages. To get the location of the additional resources type this:

% brew info lammps 

This command also tells you additional installation options available. The user-packages are available as options, just install them like this example for the USER-OMP package:

% brew install lammps --enable-user-omp 

It is usually best to install LAMMPS with the most up to date source files, which can be done with the "--HEAD" option:

% brew install lammps --HEAD 

To reinstall the LAMMPS HEAD, run this command occasionally (make sure to use the desired options).

% brew install --force lammps --HEAD ${options} 

Once LAMMPS is installed, you can test the installation with the Lennard-Jones benchmark file:

% brew test lammps -v 

-------Ref
http://lammps.sandia.gov/download.html#homebrew