lammps/2018.3          unstable  gcc/7.3.0 openmpi/3.0.1
lammps/2018.3_merlin   unstable	 gcc/8.2.0 openmpi/3.1.1 b:cmake/3.9.6
lammps/2018.11_merlin  stable    gcc/8.2.0 openmpi/3.1.1 Python/2.7.14 b:cmake/3.9.6