OpenMP: Difference between parallel & workshare constructs

[sangamesh]

Hi,

Wrt the openmp constructs parallel and work-share, how the following constructs work:



1) #pragma omp for

2) #pragma omp parallel for



Are these both statements have same effect? or different?

For example:

     for ( i=1; i<=20; i++)
     {
      lines of code here;
     }

If this loop is executed under the construct (1), it will divide the loop iterations to chunks but will not execute in parallel.

But with construct (2), the loop iterations are divided as well as executed in parallel & simultaneously.

Is this my understanding correct?

Thanks

[Codeplug]

They are the same. for (OpenMP)

gg