units 		lj
atom_style 	atomic
lattice fcc 	0.8442
region 		box block 0 5 0 5 0 5
create_box	1 box
create_atoms	1 box
mass		1 1.0
velocity	all create 1.0 893243
pair_style	lj/cut 2.5
pair_coeff	1 1 1.0 1.0 2.5

fix		1 all nve
fix 	        yref all store/state 0 y
compute		displace all displace/atom
variable        xref atom x-c_displace[1]

run 		0

write_restart   myrestart

dump            dumpid all custom 100 mydump id v_xref f_yref
dump_modify	dumpid sort id

run             100