TBB 学习笔记

#include <tbb/task_scheduler_init.h>
#include <tbb/blocked_range.h>
#include <tbb/parallel_for.h>
#include <iostream>

class ApplyFoo
{

private:
    float *const my_a;
public:
    void operator()(const tbb::blocked_range<size_t>&r)const
    {
        float *a=my_a;
        for(int i=r.begin();i!=r.end();++i)
        {
            printf("gevar = %f\n",a[i]);
        }
    }
    ApplyFoo(float a[]):   
        my_a(a)
    {
    }
};
void parallelApplyFoo(float a[],size_t n)
{
    tbb::parallel_for ( tbb::blocked_range<size_t> (0,n),ApplyFoo(a) ,tbb::auto_partitioner());
}
int main()
{
    //tbb::task_scheduler_init init;
    float a[10]={1,2,3,4,5,6,7,8,9,10};
    parallelApplyFoo(a,10);
    return 0;
}