gpu/test.ipynb

In [1]:

import numpy as np
import matplotlib.pyplot as plt

In [2]:

a = np.fromfile("input_file.bin", dtype=np.float32)
b = np.fromfile("filter_coefs.bin", dtype=np.float32)

In [3]:

conv = np.convolve(a, b, mode="valid")
plt.plot(conv)

Out[3]:

[<matplotlib.lines.Line2D at 0x7f78d691d810>]

In [4]:

l = len(a) - len(b) + 1
out = np.ndarray((l,), dtype=np.float32)

for i in range(l):
    s = np.float32(0)

    for j in range(len(b)):
        a_pos = i - j + len(b) - 1
        s += a[a_pos] * b[j]

    out[i] = s

In [5]:

plt.plot(out)

Out[5]:

[<matplotlib.lines.Line2D at 0x7f78d68ae210>]

In [6]:

c = np.fromfile("./output_file.bin", dtype=np.float32)

plt.plot(c)

Out[6]:

[<matplotlib.lines.Line2D at 0x7f78d6731310>]

In [7]:

plt.plot(np.isclose(c, conv))

Out[7]:

[<matplotlib.lines.Line2D at 0x7f78d678f890>]