I have a script file which uses the function parallel_map. ( source code of qutip.parallel.parallel_map) from a package QuTiP . As one would see on clicking the source code for the function, it uses the multiprocess module of python. I looked at answers of serial version of this question. I decided upon Snakeviz on reading zaxiliu's solution. But naively trying it on my code fails. So what must I do to profile my code? My heart is not set on Snakeviz. I don't mind using any other graphical tool.
Doesn't satisfy the question requirements fully, but will work if nothing else is available
Try using serial_map instead of parallel_map from the same module. Replace (or better yet comment out) the line
from qutip.parallel import parallel_map
with
from qutip.parallel import serial_map
Now you have a serial implementation of code. This can be profiled using those described in serial version of your question. After this (assuming you go ahead with Snakeviz)
make the profile file
python -m cProfile -o program.prof my_program.py
Run Snakeviz on the profile file generated in the previous step
snakeviz program.prof