import numpy as np
from numpy.linalg import norm
import time

m1 = np.random.randn(10000, 10000)
m2 = np.random.randn(10000, 10000)
print("Starting...")
start = time.time()
norm(np.dot(m1, m2))
end = time.time()
time_taken = end - start
print("Time taken ", time_taken)