Question about omp_get_wtime

[juaninf]

in this function omp_get_wtime
For example if two treads A and B, A takes 5 and the other 5 and running at the same time, it will get 5 or 10?

[cswb625]

hello,
you get two times 5 for the two threads.

[ruud]

It all depends on how you use this function. The most common use is something like this:

Code: Select all

t_start = omp_get_wtime();
#pragma omp parallel
{
  .....
}
t_end = omp_get_wtime() - t_start;

That will give you the elapsed time of the parallel region.

Kind regards, Ruud