DMOL3 runs only with one CPU

I used following command to use ASE-DMOL3:

export DMOL_COMMAND="/home/reza/BIOVIA/MaterialsStudio23.1/etc/DMol3/bin/RunDMol3.sh -np 20 struct"

where struct is my basename. However, it runs only on one CPU.

I also tested the new method of config.ini for it, but I got an error.

Any help?