The syntax of the parallel sections construct is as follows:  

 
#pragma omp parallel sections [clause[ [,] clause] ... ] new-line 
    { 
    [#pragma omp section new-line] 
        structured-block 
    [#pragma omp section new-line 
        structured-block] 
    ... 
    }
  

where clause can be any of the clauses accepted by the parallel or sections directives, except the nowait clause, with identical meanings and restrictions.

The syntax of the parallel sections construct is as follows:  

 
!$omp parallel sections [clause[ [,] clause] ... ] 
    [!$omp section] 
        structured-block 
    [!$omp section 
        structured-block] 
    ... 
!$omp end parallel sections
  

where clause can be any of the clauses accepted by the parallel or sections directives, with identical meanings and restrictions.

The last section ends at the end parallel sections directive. nowait cannot be specified on an end parallel sections directive.

The semantics are identical to explicitly specifying a parallel directive immediately followed by a sections directive.

The semantics are identical to explicitly specifying a parallel directive immediately followed by a sections directive, and an end sections directive immediately followed by an end parallel directive.