[Omp] omp parallel sections and omp parallel for what are differences?

[Alexander Bubnov]

Hello, all!

I have questions for you.

FIRST CASE:
#pragma omp parallel sections
{
#pragma omp single
  func1();
#pragma omp single
  func2();
#pragma omp single
  func3();
}

SECOND CASE:

{
  void (*f[])() = {func1,func2,func2};
#pragma omp parallel for
  for(i=0; i<3; ++i)
  {
    f[i]();
  }

}

Are these cases same or different from each other by performance?
Which of them is better and why? Or do they depend on?

-- 
/BR, Alexander