I'm really confused with the codes from line 51 to line 93 in main.py

[yuweiDu]

I'm really confused with the codes from line 51 to line 93 in main.py. What's the difference between the two loops respectively from line 52 and line 63? Don't they have the same function? Could you please answer my question, THANK YOU !

[MichaelHills]

First loop runs on the python multi-processing pool to utilise all your CPU cores. Second loop "does the same thing" but because of the caching infrastructure, it really does nothing except load up the cached results and print them out in order.

You can imagine that printing from the multi-processing stage would be interleaved and messy without synchronization. Was just easier and fast enough to load up the results in a single thread at the end.

Does that make sense?

[yuweiDu]

Thank you for your response.
I am not familiar with multi-processing pool. I will search for related knowlege. Thank you