I have encountered this problem frequently in recent runs: "`Process exceeded running time limit`", may this be due to the number of samples in my one run? Is there a way to set it globally to avoid errors?

you could do it using a

custom.config

like the one below (add to your command `-c custom.config`:

process {
    time = X.h
}

where

X

corresponds to the number of hours but this will increase the time requested for all processes and I won’t recommend to do it, it would be better to just ask for more time for the processes affected with a name selector:

withName: 'FOO'{
    time = X.h
}