[lammps-users] For loop or multiline if in input file?

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1

I was curious if there was anything akin to a ‘for’ loop for use in the input files.

For example, the effect I am going for is something like this

for i=1:N
velocity all create…
run N_steps
end

so that I can essentially ‘re-initialize’ the velocities of the system every N_steps, but for a possibly large N - such that I don’t want to use jump and a pile of input files.

Also - is there any way to do multiline commands in an if statement, or is the only option for that ‘jump’?

Thanks,

Dave

David E. Farrell

Graduate Student

Mechanical Engineering

Northwestern University

email: d-farrell2@…435…

2

Using the jump command with a variable loop is
like a for statement. You can jump back into the
same file to a label, see the label command.

There is no if,then,else with a bunch of commands
in between.

Steve

3

Ah, OK - I will check that out.

Thanks,

Dave