dump cfg

Dear Lammps users,
i am using dump cfg command in my input file. while running it is giving error: invalid dump command
i am using lammps 2009 version.
this is my input file:

Input file for uniaxial compression loading of single crystal copper

units metal
dimension 3
boundary p p p
atom_style atomic
variable latice equal 3.615
variable T equal 300.0
echo log

lattice fcc {latice} lattice fcc {latice} orient x 1 0 0 orient y 0 1 0 orient z 0 0 1
read_data input_datafile_comp_Cu

pair_style eam
pair_coeff * * Cu_u3.eam

timestep 0.001 # timestep is 1 femto second

velocity all create 300 12345 mom yes rot no
fix 1 all nvt $T $T 100.0 drag 1

thermo 1
thermo_style custom step lx ly lz press pxx pyy pzz pe temp
thermo_modify lost ignore flush yes
compute csym all centro/atom
compute peratom all pe/atom

run 100
unfix 1

reset_timestep 0
variable tmp equal “lx”
variable L0 equal {tmp} print "Initial Length, L0: {L0}"

fix 1 all nvt 300.0 300.0 100.0 drag 1
variable srate equal 1.0e10
variable srate1 equal “-v_srate / 1.0e12” # strain rate is 0.1 angstroms
fix 2 all deform 1 x erate ${srate1} units box remap x

variable strain equal “(lx - v_L0)/v_L0”
variable p1 equal “v_strain”
variable p2 equal “-pxx/10000”
variable p3 equal “-pyy/10000”
variable p4 equal “-pzz/10000”
fix def1 all print 100 “{p1} {p2} {p3} {p4}” file cu_100.def1.txt screen no

thermo 1
thermo_style custom step v_strain temp v_p2 v_p3 v_p4 ke pe press
thermo_modify lost ignore flush yes

dump 1 all cfg 50 dump.compress..cfg id type xs ys zs id type c_csym fx fy fz
dump_modify 1 element Cu first yes
dump 2 all image 250 dump.cu_comp.
.jpg type1 2.42 atom yes bond none axes 0.02 0.02 0.02
dump_modify 2 every 50 element Cu image yes

run 100

waiting for quick reply…

Dear Lammps users,
i am using dump cfg command in my input file. while running it is giving
error: invalid dump command
i am using lammps 2009 version.

nobody will fix your problems when you are using an obsolete
version of lammps. the error message indicates that the
dump cfg command is not supported in your version.

axel.