atomic

Instructions

You know this program already from "racing". It tries to increment an integer 200 times in two threads. Last time, we fixed the race condition using a lock, but now we'll try atomics.

Tasks:

• Replace the counter 'a' by an atomic. Run the program, and check for race conditions.
• Go back to 'racing', and check the execution time of the atomic vs the lock solution, e.g. using time ./atomic You might have to increase the number of tries if it completes too fast.