1. Does the multithreaded web server described in Section 4.1 exhibit task or data parallelism? Explain your answer.
2. Explain the difference between fork() and pthread_create(). What happens if you fork a process with multiple threads?
3. What does pthread_join(pthread_t thread, void **value_ptr) do? What could happen in a multithreaded application if the main thread exits using exit(0) without running pthread_join for each thread, assuming the OS is Linux?
4. Describe how the factorial of 16 (16!) can be accomplished by using multithreading.

 

code registers thread- data PC files stack single-threaded process code registers stack PC data registers registers stack files PC stack PC multithreaded process Figure 4.1 Single-threaded and multithreaded processes. -thread