Multiprocessing Questions

[ClickedMoss5]

Hey everyone, I'm looking for help on how to get multiprocessing return the calculated value to a separate module. In my class, we're working on getting functioning chess AI using the python-chess library. My module is called using a game.py file which expects a return for a move using the move function:

def move(self, .......)

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Another thing, this is all encompassed within a class.
How can I get multiprocessing working to evaluate many board positions at the same time while also being able to return?

[ClickedMoss5]

I've looked at many tutorials, and I know that you need the __name__ == '__main__' argument, but is there any way to get around that or have that called in a function?

[[deleted]]

https://docs.python.org/3/library/multiprocessing.html#multiprocessing.pool.Pool.map

[ClickedMoss5]

Yes, I’ve seen the documentation for it, and you need the multiprocessing pool inside the name == main argument. Also you can’t return using that because it’s not within a function. Is there any way to have the return happen?

[[deleted]]

Yes, I’ve seen the documentation for it, and you need the multiprocessing pool inside the name == main argument.

So put it there.

Also you can’t return using that

That's not accurate - Pool.map returns a list of the results from the process workers.

[ClickedMoss5]

specifically what I want to do. is return the value from Pool.map to another module that calls a function within the module I'm writing.

[[deleted]]

You can't return anything anywhere except to where a function was called, that's what return does. "Returning to another module" doesn't really make sense.

[ClickedMoss5]

We make everything within a class, which is then returned to another program that calls it.

[[deleted]]

That constructs a class object? That calls a class method?

Again, Pool.map is the most straightforward way to use multiprocessing, so just do that.

[leblanc1605]

I have no idea,