Lattice none

Hello, dear LAMMPS developers and users.

Shed light please on my next misunderstanding.
Firstly the perfect FCC crystal is created by using "lattice lattice fcc 3.52",
then before MD simulation should the lattice be switched off by "lattice none" ?
Or it would be done automatically?

I am afraid to create the crystal and then would be not `natural` moving because the particles would `remember` their initial positions.

I would appreciate any help.
Thanks.

Hello, dear LAMMPS developers and users.

Shed light please on my next misunderstanding.
Firstly the perfect FCC crystal is created by using "lattice lattice fcc 3.52",
then before MD simulation should the lattice be switched off by "lattice none" ?
Or it would be done automatically?

there is not need. the lattice command has no impact on the MD, it is
merely creating a pattern in space that - like ruled paper - can be
used to place atoms or regions instead of using absolute coordinates..

I am afraid to create the crystal and then would be not `natural` moving because the particles would `remember` their initial positions.

why not make a simple test? have a look at the melt example, for
example. does it retain its lattice?

axel.

The simple melt test has been done. You're were right.

Thank you !