OpenMP: OpenMP并行嵌套实例

//#include <stdio>   
#include "stdafx.h"   
  
void report_num_threads(int level)  
{  
//#pragma omp parallel   
{  
      printf("level %d:number of threads in the team - %d\n",level,omp_get_num_threads());  
}  
}  
  
  
int _tmain(int argc, _TCHAR* argv[])  
{  
      omp_set_nested(1);  
//omp_set_dynamic(0);   
#pragma omp parallel num_threads(2)   
{  
//printf("here1\n");   
      report_num_threads(1);  
#pragma omp parallel num_threads(2)   
{  
//printf("here1\n");   
      report_num_threads(2);  
#pragma omp parallel num_threads(2)   
{  
//printf("here1\n");   
      report_num_threads(3);  
}  
}  
}  
return 0;  
}