Empty output from fix indent command

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1

Hi, Everyone:
As I am simulating the indentation process , I got something wrong by using the following input commands:

      variable z equal vdisplace(64,-2)

      fix 4 all indent 10.0 sphere 86 86 v_z 35 units box

      fix 6 all ave/time 2 5 10 f_4[1] f_4[2] f_4[3] v_z file temp.indent mode scalar

However the output file "temp.indent" is empty, nothing there. Except for this, everything else seems perfectly normal to me , and indentation process is carrying out smoothly. I have no idea what's going wrong, is there possible that my lammps version is out of data? Mine is the 11-27-2012 version

Thanks and waiting eagerly for reply

2

If I add these 3 lines to examples/indent/in.indent
before the 1st run command, I get lots of output
in tmp.indent.

variable z equal vdisplace(64,-2)
fix 4 all indent 10.0 sphere 86 86 v_z 35 units box
fix 6 all ave/time 2 5 10 f_4[1] f_4[2] f_4[3] v_z &
file tmp.indent mode scalar

Try the current version of LAMMPS and see if you get
the same behavior.

Steve