int main()
{
double *A, suma, tiempo;
A = (double *)malloc(N*sizeof(double));
tiempo = omp_get_wtime();
#pragma parallel
{
#pragma omp sections
{
#pragma section
{
fill_rand(N, A); // Productor
flag=1;
#pragma omp flush
}
#pragma section
{
suma = Sum_array(N, A); // Consumidor
}
}
}
tiempo = omp_get_wtime() - tiempo;
printf(" La suma es %f en %f segundos\n",suma, tiempo);
}
int main()
{
double *A, sum, runtime;
int numthreads, flag = 0;
omp_set_num_threads(Nthreads);
A = (double *)malloc(N*sizeof(double));
#pragma omp parallel
{
#pragma omp master
{
numthreads = omp_get_num_threads();
if(numthreads != 2)
{
printf("error: incorect number of threads, %d \n",numthreads);
exit(-1);
}
runtime = omp_get_wtime();
}
#pragma omp barrier
#pragma omp sections
{
#pragma omp section
{
fill_rand(N, A);
#pragma omp flush
flag = 1;
#pragma omp flush (flag)
}
#pragma omp section
{
#pragma omp flush (flag)
while (flag != 1){
#pragma omp flush (flag)
}
#pragma omp flush
sum = Sum_array(N, A);
}
}
#pragma omp master
runtime = omp_get_wtime() - runtime;
}
printf(" with %d threads and %lf seconds, The sum is %lf \n",numthreads,runtime,sum);
}
int main()
{
double *A, sum, runtime;
int flag = 0;
A = (double *)malloc(N*sizeof(double));
runtime = omp_get_wtime();
fill_rand(N, A); // Producer: fill an array of data
sum = Sum_array(N, A); // Consumer: sum the array
runtime = omp_get_wtime() - runtime;
printf(" In %f seconds, The sum is %f \n",runtime,sum);
}
