LIGGGHTS® - User Forum

hi,
i am working on porosity of the soil sample. i have attached the input script with this .
Please help me with this error ERROR: Fix insert/pack (id ins): unknown keyword (fix_insert_pack.cpp:106).

Hi,
I faced a weird problem in my simulation and it is that when I use "gran/hertz/history" as a pair_style my simulation work precisely, but when change the pair_style to "gran/hertz/history cohesion sjkr" my simulation does not work and it leads to the following messages repeatedly.

"touching neighbour atoms found, growing contact history"

I would appreciate it if anyone help me to solve this problem.

Sincerely,
Rasoul

Dears,
I can compile liggghts with gpu packages and I think it works but I can't compile it with user-cuda.
After the compiling of liblammpscuda.a in lib directory, if I try "make machine" I obtain this error:

pair_gran_hooke_cuda.cpp: In member function ‘void LAMMPS_NS::PairGranHookeCuda::allocate()’:
pair_gran_hooke_cuda.cpp:95:39: error: ‘kn’ was not declared in this scope
pair_gran_hooke_cuda.cpp:96:39: error: ‘kt’ was not declared in this scope
pair_gran_hooke_cuda.cpp:97:39: error: ‘gamman’ was not declared in this scope


Hi
how can I fix the problem below?

ERROR: Fix wall/gran/hooke/history (id plate_wall): Fix wall/gran style and pair/gran style have to match, you have to define the wall after the pair style (fix_wall_gran.cpp:251)

thanks so much for your good commands.
Regards mozhgan

Hi
H worte a an example but when I run it this error has apeared

ERROR on proc 0: Cannot open dump file (dump.cpp:392)
--------------------------------------------------------------------------
MPI_ABORT was invoked on rank 0 in communicator MPI_COMM_WORLD
with errorcode 1.

Hi Chris,

as the command "region ID mest/tet xx.vtk ..." needs a volume legacy VTK file. What I am really confused is that, what is a real legacy vtk mesh that LIGGGHTS supports? And how to make/convert STL mesh to this type of mesh?

Importing STL file into paraview, and save as Legacy VTK, but it is

# vtk DataFile Version 3.0

and using gmsh -2 xxx.stl -o xxx.vtk, it's

hi
I run some of the examples of liggghts yesterday but today I can't run them and here is the command and the error .

saeed@ubuntu:~$ ~/Documents/LIGGGHTS-PUBLIC/src/lmp_openmpi < in.movingMeshGran
bash: in.movingMeshGran: No such file or directory

thanks so much

I am using LIGGGHTS but it uses only one processor for computing. I have installed LIGGGHTS by following http://cfdem.dcs-computing.com/?q=node/1789

None of the combination like processors 1 2 1 or processors 2 1 2 works...

Don't know whether LIGGGHTS is not multi-processor because no processor settings were made during compilation. Do I need to install LIGGGHTS with some added settings or feature can be added later.

Hello,

Hi all,

No doubt this is very simple, but I don't know Linux well enough to know what's going on.

I have gone through the :official" installation tutorial for Fedora on this website, everything seemingly went smoothly until the last step:

+ Set a following symbolic link for LIGGGHTS (use lmp_fedora if you use the fedora makefile):
+ Type "sudo ln -s /path1/src/lmp_fedora /usr/bin/liggghts"

I ran this command from the home directory with path1 replaced with LIGGGHTS-PUBLIC, which gives an error 'symbolic link already exists'.