If, I’m sorry when I also reported the direction of others.
I had to be as it is frozen in a state that does not start is calculated when an attempt is made to execute the command “mpirun -np -x” on command line.
It has confirmed that is calculated Once off the option.
The standard way of running a LAMMPS simulation using MPI is the following command line:
“mpirun -np N ./lmp_foo -in INPUT”
where lmp_foo is your LAMMPS executable, copied or symbolic linked to the current directory, and INPUT is your input file. Try a standard example shipped with LAMMPS for starters, for example, the “in.melt” example in “LAMMPS_DIR/examples/melt” directory.
You can also start with running it on just one processor: