Dear LAMMPS users,
I’m intested in simulating magnetic particles under a permanent magnetic field. The magnetic field can be derived anallytical (my preference as the first step) or solved using a finite element method (will be coupled with LAMMPS for the 2nd step). It might be interesting to consdier particle dipole-dipole interaction (for the 3rd step). First, I’d like start to consider three group of particles, magnetic particles with a diameter of D, non-mangnetic particle with a diamter of D and non-mangnetic particle with a diamter of
d. (d=0.1D) The (analytical) magnetic field function is a function of x,y,z.
I’m just new to the LAMMPS and I have no idea on how to start with it for my work. I have three questions.
Q1. Could you give me tips on how I can implement this study in lammps?
Q2. How can I check previous posting on lammps?
Q3. I tried to install the lammps, but there is a complain during installation. Below are what I tried to do.
Linux: Ubuntu 11.04 LTS 64bit
Step1: Install libraries and lammps.
sudo apt-get install build-essential mpich-bin libmpich1.0-dev mpi-doc fftw2 fftw-dev libxaw7-dev
get lammps-14Feb12
Step2: Compilation
cd src
make no-gpu
make yes-dipole
make clean-all
make openmpi -j
make makelib
make -f Makefile.lib openmpi
When I run an example, I’ve got an error shown below.
jeong@…3254…
lammps < in.particle
LAMMPS (14 Feb 2012)
Created orthogonal box = (-10 -5 -5) to (10 5 5)
1 by 1 by 1 MPI processor grid
Lattice spacing in x,y,z = 1.69253 1.69253 1.69253
Created 3119 atoms
ERROR: Unknown command: shape 1 1.0 1.0 1.0
What have I missed while installing lammps? How can I resolve this error?
Best regards,
Jeongho
Dear LAMMPS users,
I'm intested in simulating magnetic particles under a permanent magnetic
field. The magnetic field can be derived anallytical (my preference as the
first step) or solved using a finite element method (will be coupled with
LAMMPS for the 2nd step). It might be interesting to consdier particle
dipole-dipole interaction (for the 3rd step). First, I'd like start to
consider three group of particles, magnetic particles with a diameter of
D, non-mangnetic particle with a diamter of D and non-mangnetic particle
with a diamter of
d. (d=0.1D) The (analytical) magnetic field function is a function of x,y,z.
I'm just new to the LAMMPS and I have no idea on how to start with it for my
work. I have three questions.
Q1. Could you give me tips on how I can implement this study in lammps?
get ready for some serious hacking.
one thing that wasn't obvious from your post.
are your particles macroscopic? i.e. will there
be friction between them?
Q2. How can I check previous posting on lammps?
Q3. I tried to install the lammps, but there is a complain during
installation. Below are what I tried to do.
Linux: Ubuntu 11.04 LTS 64bit
Step1: Install libraries and lammps.
sudo apt-get install build-essential mpich-bin libmpich1.0-dev mpi-doc fftw2
fftw-dev libxaw7-dev
get lammps-14Feb12
Step2: Compilation
cd src
make no-gpu
make yes-dipole
make clean-all
make openmpi -j
make makelib
make -f Makefile.lib openmpi
When I run an example, I've got an error shown below.
[email protected]...
lammps < in.particle
LAMMPS (14 Feb 2012)
Created orthogonal box = (-10 -5 -5) to (10 5 5)
1 by 1 by 1 MPI processor grid
Lattice spacing in x,y,z = 1.69253 1.69253 1.69253
Created 3119 atoms
ERROR: Unknown command: shape 1 1.0 1.0 1.0
What have I missed while installing lammps? How can I resolve this error?
this is using an obsolete syntax.
the shape is set via the "set" command.
try replacing it with:
set type 1 shape 1.0 1.0 1.0
or use atom_style sphere
and skip this command.
axel.