How can I use the parallel command to exploit multi-core parallelism on my MacBook?

Question

I often use the find command on Linux and macOS. I just discovered the command parallel, and I would like to combine it with find command

Answer 1

Just use background running at each first level paths separately

In example below will create 12 subdirectories analysis

 $ for i in [A-Z]*/ ; do find "$i" -name "*.ogg" & >> logfile ; done 
[1] 16945
[2] 16946
[3] 16947
# many lines
[1]   Done                    find "$i" -name "*.ogg"
[2]   Done                    find "$i" -name "*.ogg"
#many lines
[11]   Done                    find "$i" -name "*.ogg"
[12]   Done                    find "$i" -name "*.ogg"
 $

Doing so creates many find process the system will dispatch on different cores as any other.

Note 1: it looks a little pig way to do so but it just works..

Note 2: the find command itself is not taking hard on cpus/cores this is 99% of use-case just useless because the find process will spend is time to wait for I/O from disks. Then using parallel or similar commands won't work*