ps -fT pid
to manage a bunch of process forked from the specified pid.
Now I want to modify some settings so I want to stop the processes whose pid is in
ps -fT pid. After the modification I want them to continue running from the stopped state(not redo the process). For example if a process have 4 stages. If I stopped it when it was in second stage, I want to continue it from the second stage. How to do that?