file rprm name=(input.prmtop) read
file rcbd name=(input.restrt) pack=4 read
file wprm name=(pimd.prmtop) wovr
file wcrd name=(pimd.restrt) wovr

action
~ use original mass
omas
pimd
~ make 4 copies of the whole system
space numc=4 pick #prt 1 323 done

*EOD