Its a very handy utility. Sometimes when I am lazy to write proper multiprocessing support in my codes, I get some work started anyway by (1) quickly providing

Its a very handy utility. Sometimes when I am lazy to write proper multiprocessing support in my codes, I get some work started anyway by (1) quickly providing a basic CLI version of my code (2) throwing in a bunch of code-invocation commands in a file and calling GNU parallel on it.