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

1. Compiling LAMMPS-15Jun20 with GNU 6 and OpenMPI 3