How to modify different parts of a numpy array of complex numbers in parallel using python? -

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how modify different parts of numpy array of complex numbers in parallel using python? question seems give answer numpy array real coefficients: is shared readonly data copied different processes python multiprocessing? , not complex coefficients.

you need view array containing twice number of floats floats complex numbers:

>>> shared_array_base = multiprocessing.array(ctypes.c_double, 3*3*2) >>> shared_array = np.ctypeslib.as_array(shared_array_base.get_obj()) >>> shared_array = shared_array.view(np.complex128).reshape(3, 3)

the complex number format [re0, im0, re1, im1, re2, im2, ...]:

>>> shared_array[1,1] = 1+2j >>> shared_array.base array([ 0.,  0.,  0.,  0.,  0.,  0.,  0.,  0.,  1.,  2.,  0.,  0.,  0.,         0.,  0.,  0.,  0.,  0.]) >>> shared_array.base.base <multiprocessing.sharedctypes.c_double_array_18 object @ 0x7f7c1b5d1f80>

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