he following code isn't working correctly and I am unable to figure out why. The for loop is never reached in the first if statement and the program never terminates. May someone please explain to me why that is.

The following code isn't working correctly and I am unable to figure out why. The for loop is never reached in the first if statement and the program never terminates. May someone please explain to me why that is.

#include <stdio.h>
#include <time.h>
#include <stdlib.h>
#include <mpi.h>
int main(void)
{
int sum, comm_sz, my_rank, i, next, x;
int powTwo = 2;
int diff = 1;

MPI_Init(NULL, NULL);
MPI_Comm_size(MPI_COMM_WORLD, &comm_sz);
MPI_Comm_rank(MPI_COMM_WORLD, &my_rank);
srandom((unsigned)time(NULL) + my_rank);
x = random() % 10;
if (my_rank % powTwo == 0)
{
printf("IF----");
printf("Process %d generates: %d\n", my_rank, x);
for (i = 0; i < comm_sz; i++)
{
MPI_Recv(&x, 1, MPI_INT, i, my_rank , MPI_COMM_WORLD, MPI_STATUS_IGNORE);
sum += x;
printf("Current Sum=: %d\n", sum);
}

printf("The new divisor is:%d\n", powTwo);
powTwo *= 2;
diff *= 2;

} else if (my_rank % powTwo != 0) {
printf("ELSE----");
printf("Process %d generates: %d\n", my_rank, x);
MPI_Send(&x, 1, MPI_INT, 0, 0, MPI_COMM_WORLD);
}else if (my_rank==0){
printf("Sum=: %d\n", sum);
}
MPI_Finalize();
return 0;
}