Parallelization Scenario Master Process:
- Calculate the sub range size r=(y-x)/p
- Note that p is the number of processes.
- Broadcast x and r to each slave process using MPI_Send.
- Receive sub count from each slave process using MPI_Receive.
- Print total count of primes between x and y.
Slave Process:
- Receive x and r through the MPI_Receive.
- Calculate the lower bound a and upper bound b according to its rank.
- Count primes in its sub range (between a and b).
- Print the partial count
- Send this partial count to the master process using the MPI_Send.
