command

This parameter specifies the command that will be called during the execution of a program. There is typically a default set for this that you only need to change if you'd like parallelization. For example, VASP workflows use vasp_std > vasp.out by default but you can override this to use mpirun.

command: mpirun -n 8 vasp_std > vasp.out
command = "mpirun -n 8 vasp_std > vasp.out"
command = "mpirun -n 8 vasp_std > vasp.out"