empty log file

Dear all,

I am trying to simulate lennard jones gas and made several runs. The log file in my directory is empty. I am just using **in file. I think I do not need to use any potential files because it is a lennard jones gas and fluid. Any help appreciated?

Thanks

Can you run bench/in.lj and get a log.lammps file, either

on 1 proc or multiple procs?

Steve

Dear all,

I am trying to simulate lennard jones gas and made several runs. The log
file in my directory is empty. I am just using **in file. I think I do not
need to use any potential files because it is a lennard jones gas and
fluid. Any help appreciated?

​file i/o is block buffered, so there will not be any output​ unless you
have at least a block's worth of pending i/o (usually 4kB or 8kB) or the
file is ordinarily closed. please note, that you should also have output to
the console, if you use the default settings.

with out more details about what you are doing and how, it is difficult to
give more specific advice. how LAMMPS handles i/o is also explained in the
documentation.

axel.

If this is the problem, there is a thermo_modify flush yes

command that forces output to the log file

every timestep that thermo output in invoked. If your simulation

gets as far as the initial (time 0) timestep, the output should

then be in the log file.

Steve