In [1]:
import numpy as np
import time
In [2]:
a = np.random.rand(1000000)
b = np.random.rand(1000000)
# Vec
tic = time.time()
c = np.dot(a,b)
toc = time.time()
print("Vectorized version: ", c ," / Calculated in ", str(1000*(toc-tic)), "ms")
# Non-vec
c = 0
tic = time.time()
for i in range(1000000):
c += a[i] * b[i]
toc = time.time()
print("Non-vectorized version: ", c ," / Calculated in ", str(1000*(toc-tic)), "ms")