[lammps-users] error when running the pour example

Dear LAMMPS group,

I am new to LAMMPS.

Before compiling LAMMPS, I did include several standard packages (asphere, class2, colloid, and granular) by “make yes-granular” and others). I was able to compile LAMPPS successfully.

When I tried to run the pour example, I got the following error:

[email protected]…1744…:~/cfdem/LIGGGHTS-beta/lammps-24Jan10/examples/pour> mpirun -np 4 ./lmp_mpich2 < in.pour
LAMMPS (15 Jan 2010)
Created orthogonal box = (-10 -10 -0.5) to (10 10 16)
2 by 2 by 1 processor grid
ERROR: Illegal pair_style command
[email protected]…1744…:~/cfdem/LIGGGHTS-beta/lammps-24Jan10/examples/pour>

Dear LAMMPS group,

I am new to LAMMPS.

Before compiling LAMMPS, I did include several standard packages (asphere,
class2, colloid, and granular) by "make yes-granular" and others). I was
able to compile LAMPPS successfully.

When I tried to run the pour example, I got the following error:

[email protected]:~/cfdem/LIGGGHTS-beta/lammps-24Jan10/examples/pour> mpirun
-np 4 ./lmp_mpich2 < in.pour
LAMMPS (15 Jan 2010)
Created orthogonal box = (-10 -10 -0.5) to (10 10 16)
2 by 2 by 1 processor grid
ERROR: Illegal pair_style command
[email protected]:~/cfdem/LIGGGHTS-beta/lammps-24Jan10/examples/pour>
---------------------------------------

I am able to run the flow example without any problem.

Can someone give me a hint on how to solve this problem?

this looks like your binary does *not* include the granular package.
you may want to do a make package-status to check, and perhaps
a make clean-all make package-update and then recompile.

cheers,
   axel.

Dear Alex and Matt,

Thanks for the reply!

When I tried “make package-status”, the system showed that the granular package was installed.

It turned out that the lammps package I am using might have some problem. I got a beta version of lammps from LIGGGHTS (www.cfdem.com). The example cases under LIGGGHTS all ran without any problem. But, got error when running the pour example in lammps.

I downloaded the official version of lammps and installed it on another computer. The pour example ran successfully.

There maybe some conflicts between official lammps and LIGGGHTS.

Pei

Hi, Axel,

Sorry that I spelled your name wrong.

Pei

Illegal pair_style means that the args you have given to pair_style gran are
incorrect, not that the package hasn't been added. I'm guessing the LIGGHTS
add-ons changed the syntax of the command. I would talk to Christoph.

Steve