Question

I am writing a code to schedule processes on different cores of a multicore computer. I am using linux sched_setaffinity to schedule a job. However, I don’t know if there is a way that the scheduler program can instantaneously/after-a-delay know whether a scheduled job has finished. Can you please tell me, how to do this? My scheduler is a C++ program, so I cannot manually see. Since scheduler is itself assigning (scheduling) the job, it may have some extra information such as PID etc.

Answer 1

Perhaps you should handle SIGCHLD in your scheduler. Your signal handler function will then be called whenever a child process exits.