from multiprocessing import Process
def square(x=2):
for i in range(10000000):
pass
print(x**2)
procs=[]
for i in range(5):
procs.append(Process(target=square))
for proc in procs:
proc.start()
for proc in procs:
proc.join()
what is the use of
for proc in procs:
proc.join()
in the above code? it gives the same output with and without that line
Hey @devchopra999_11c6416ab7f09bbf,
Of course it will work same but basically join method blocks the execution of the main process until the process whose join method is called terminates. Without the join method, the main process won’t wait until the process gets terminated. So we use join to wait for all the processes to complete first before resuming main process.
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whats the main process? everything excluding the parallel processes we created?
Yes all the task created will be running parallel in the main process or main thread.