import time
MAX    = 1000  # maximum Mandelbrot iterations
N      = 4096  # width and height of image
pixels = [0 for _ in range(N * N)]

def scale(x, a, b):
    return a + (x/N)*(b - a)

t0 = time.time()
@par(gpu=True, collapse=2)
for i in range(N):
    for j in range(N):
        c = complex(scale(j, -2.00, 0.47), scale(i, -1.12, 1.12))
        z = 0j
        iteration = 0

        while abs(z) <= 2 and iteration < MAX:
            z = z**2 + c
            iteration += 1

        pixels[i*N + j] = int(255 * iteration/MAX)
print(sum(pixels))
print(time.time() - t0)