#include <stdio.h>
#include <unistd.h>
#include <omp.h>
#include <time.h>

void workload()
{
	// We are simulating a workload by sleeping the thread
	// This is obviously not an accurate representation
	// of real computation, but it works for this example
	usleep(100000);
}

int main(int argc, const char *argv[])
{
	// this sets the default number of threads to 5
	// you can still overwrite the number of threads used in a parallel region with a clause
	omp_set_num_threads(5);
	
	// We use openMP functions to measure our programs run time.
	double start = omp_get_wtime();

        #pragma omp parallel 
	{
		// A for loop inside a parallel section can be parallelized using
		// the for directive
		// TODO: Share the workload of the loop below among all threads
		for (int i = 0; i<10; i++) {
			workload();
			printf("Iteration %d in thread: %d\n", i, omp_get_thread_num());
		}
	}

	double end = omp_get_wtime();
	printf("That took a total of %f seconds.\n", end - start);
    
	return 0;
}