import time
import multiprocessing
result=[]
def add(numbers):
    global result
    for n in numbers:
        print('Add'+ str(n+n))
        result.append(n+n)
    print('Add result inside process' + str(result))

if __name__== '__main__':
    arr=[2,3,8]
    t=time.time()
    p1=multiprocessing.Process(target=add, args=(arr,))
    p1.start()
    p1.join()

    print('Add result outside'+str(result))
    print('done in', time.time()-t)