Multithreading question

[amadeok]

Hello,
I'm working on a program to interpolate video frames taking advantage of multithreading or multiprocessing to better take advantage of the idle cpu and gpu times i saw while monitoring.
The function i want to run in parallel or at least with multithreading looks like this at the moment:

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def interpolate(thread_id):     total_sections = 100     section_index = 0     if thread_id == 1:         section_index += 1     start_frame = 1     final_frame = 24     while section_index < total_sections:         while start_frame < final_frame:             #do the interpolation here             start_frame += 1         section_index += 2             id = 0 interpolateT0 = multithreading.Thread(target=interpolate, args=(id,)) id = 1 interpolateT1 = multithreading.Thread(target=interpolate, args=(id,))   interpolateT0.start() time.sleep(4) interpolateT1.start()

The point is that thread 1 starts with a offset of 1 for the section index, and also +2 is added instead of +1 to the section index so that essentialy thread 0 does sections with pair index number and thread 1 does those with odd numbers.

But i don't think this will work because the both threads will update the same values and everything will get out of place. That's why i thought that using multiprocessing would be better? But it seems that using the debugger for multiprocessing is not possible?
any help?
thanks