sections (OpenMP)

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Identifies code sections to be divided among all threads.

#pragma omp [parallel] sections [clauses]  
{  
   #pragma omp section  
   {  
      code_block   
   }   
}  

where,

clause (optional)
Zero or more clauses. See the Remarks section for a list of the clauses supported by sections.

The sections directive can contain zero or more section directives.

The sections directive supports the following OpenMP clauses:

• firstprivate

• lastprivate

• nowait

• private

• reduction

If parallel is also specified, clause can be any clause accepted by the parallel or sections directives, except nowait.

For more information, see 2.4.2 sections Construct.

// omp_sections.cpp  
// compile with: /openmp   
#include <stdio.h>  
#include <omp.h>  
  
int main() {  
    #pragma omp parallel sections num_threads(4)  
    {  
        printf_s("Hello from thread %d\n", omp_get_thread_num());  
        #pragma omp section  
        printf_s("Hello from thread %d\n", omp_get_thread_num());  
    }  
}  

Hello from thread 0  
Hello from thread 0  

Directives