This is the file that has the input commands for LAMMPS to execute a run. Copy and paste the following text in to a file named AlMg.in.meam

# Test of MEAM potential for Aluminum-Magnesium system

units           metal
boundary        p p p

atom_style      atomic

read_data       Mg17Al12.pos

pair_style      meam
pair_coeff      * * AlMg.library.meam Mg Al AlMg.meam Mg Al

neighbor        0.3 bin
neigh_modify    delay 10

thermo          1

dump            1 all custom 1 AlMg.dump.meam id type x y z
log             AlMg.log.lammps

minimize        1.0e-8 1.0e-8 100 10000

The tag "pair_coeff" specifies the two potential files, AlMg.library.meam and AlMg.meam. If you want to change the names of the potential files, you also have to change their names here as well.