log file contains no information

Hello,

I’ve read many of the threads about empty log files, but my problem is a little different. I am trying to save log files with a different name so that I have different log files for each run. (I do have the thermo_modify flush yes command also.) However, none of my non-default log files seem to save any data. For example, when I used this command:

log log.equil2000 append

the log.equil2000 file is created, but the only line that is inside this log is “Total wall time.” Meanwhile, a log.lammps file is also saved for some reason, and this file has the details. However, I don’t want this file to hold my thermo outputs; I want the custom named file to have the thermo outputs. Does anyone know what is causing this issue?

Thank you!

Best,

Helen Yao

Hello,

I’ve read many of the threads about empty log files, but my problem is a
little different. I am trying to save log files with a different name so
that I have different log files for each run. (I do have the thermo_modify
flush yes command also.) However, none of my non-default log files seem to
save any data. For example, when I used this command:

log log.equil2000 append

the log.equil2000 file is created, but the only line that is inside this log
is “Total wall time.” Meanwhile, a log.lammps file is also saved for some
reason, and this file has the details. However, I don’t want this file to
hold my thermo outputs; I want the custom named file to have the thermo
outputs. Does anyone know what is causing this issue?

two core pieces of information are missing here:

- which LAMMPS version exactly are you using and on which platform
- please provide a simple example input (e.g. a modification of the
melt example) and the specific command line that you are using to run
LAMMPS

without that, people have to revert to wild guesses.

axel.

I solved the problem--I didn't have the log command in the right place. Thank you!