If you encounter an errors similar
ERROR: Too many elements extracted from MEAM library (current limit:5 ). Increase 'maxelt' in meam.h and recompile.
Last command: pair_coeff * * library.alloy2.meam .............................
Move to /usr/local/lammps-29Oct20/src/USER-MEAMC/meam.h and /usr/local/lammps-29Oct20/src/meam.h. Edit line 22. The default value is #define maxelt 5
#definte maxelt 6
Recompile the lammps. Go to /usr/local/lammps-29Oct20/src
% make clean-all
% make g++_openmpi -j 16
References