kopia lustrzana https://github.com/Dsplib/libdspl-2.0
32 wiersze
548 B
Python
32 wiersze
548 B
Python
# -*- coding: utf-8 -*-
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"""
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Created on Tue Sep 22 14:48:55 2020
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@author: bakhu
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"""
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import numpy as np
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import time
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import scipy.fftpack as fft
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N = 4194304
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x = np.random.randn(N) + 1j * np.random.randn(N)
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k = 4
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s = N
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mflops = np.zeros(22)
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for q in range(22):
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z = np.copy(x[0:s])
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t = time.time()
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for i in range(k):
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y = fft.fft(z)
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dt = (time.time() - t)/float(k)
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mflops[21-q] = 5.0 * s * np.log2(s) / dt / 1E6
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print("size = %8d Mflops = %12.3f" % (s, mflops[21-q]))
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k = int(k * 1.7)
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s = int(s / 2)
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