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53 lines
1.2 KiB
Python
53 lines
1.2 KiB
Python
import numpy as np
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import time
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def init_array(size: int):
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result = np.empty((size, size), dtype=np.complex64)
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result.real = np.random.rand(size)
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result.imag = np.random.rand(size)
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return result
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def numpy_fft(array, window_size: int):
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np.fft.fft(array, window_size)
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def scipy_fft(array, window_size: int):
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import scipy.fftpack
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scipy.fftpack.fft(array, window_size)
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def pyfftw_fft(array):
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import pyfftw
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pyfftw.interfaces.cache.enable()
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fft_a = pyfftw.interfaces.numpy_fft.fft(array, threads=2, overwrite_input=True)
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if __name__ == "__main__":
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print("Size\tIterations\tNumpy\tScipy\tPyFFTW")
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iterations = 70
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arr = init_array(1024)
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numpy_time = time.time()
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for _ in range(iterations):
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numpy_fft(arr, 1024)
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numpy_time = time.time() - numpy_time
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scipy_time = time.time()
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for _ in range(iterations):
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scipy_fft(arr, 1024)
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scipy_time = time.time() - scipy_time
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pyfftw_time = time.time()
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for _ in range(iterations):
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pyfftw_fft(arr)
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pyfftw_time = time.time() - pyfftw_time
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print(
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"{0}\t{1}\t\t\t{2:.4f}\t{3:.4f}\t{4:.4f}".format(
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1024, iterations, numpy_time, scipy_time, pyfftw_time
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)
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)
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