omp_get_max_threads

The new home for Visual Studio documentation is Visual Studio 2017 Documentation on docs.microsoft.com.

Returns an integer that is equal to or greater than the number of threads that would be available if a parallel region without num_threads were defined at that point in the code.

Syntax

int omp_get_max_threads
( )  

Remarks

For more information, see 3.1.3 omp_get_max_threads Function.

Example

// omp_get_max_threads.cpp  
// compile with: /openmp  
#include <stdio.h>  
#include <omp.h>  
  
int main( )   
{  
    omp_set_num_threads(8);  
    printf_s("%d\n", omp_get_max_threads( ));  
    #pragma omp parallel  
        #pragma omp master  
        {  
            printf_s("%d\n", omp_get_max_threads( ));  
        }  
  
    printf_s("%d\n", omp_get_max_threads( ));  
  
    #pragma omp parallel num_threads(3)  
        #pragma omp master  
        {  
            printf_s("%d\n", omp_get_max_threads( ));  
        }  
  
    printf_s("%d\n", omp_get_max_threads( ));  
}  

8  
8  
8  
8  
8  

See Also

Functions