Thanks
I ran the CNA using Lennard-Jones potential for the palladium and i get 5 in CNA, but my problem is when i use a different potential like meam or eam (many body potential). Now i show you the input file that i am using.
units real
boundary f f f
atom_style full
dimension 3
read_data data.pdmeam2
pair_style meam
pair_coeff * * /home/lammps-11Nov13/potentials/library.meam Pd
dihedral_style none
improper_style none
group paladio id 1
neighbor 4.0 bin
neigh_modify every 1 delay 1 check yes
fix 2 all nvt temp 100.0 100.0 10
fix reflect all wall/reflect xlo EDGE xhi EDGE ylo EDGE yhi EDGE zlo EDGE zhi EDGE
velocity all create 100 432567 dist uniform
compute paladio all cna/atom 3.0
compute escalar paladio reduce sum c_paladio
timestep 5
thermo 100000
thermo_style custom step temp pe etotal ecoul evdwl enthalpy c_escalar
thermo_modify norm yes
dump video all atom 100000 dump.pdme2-TIF
restart 10000000 restart.*.pdme2-TIF
run 10000000