C++ 简单的Cilk减速机不能加速Cilk_

我正试图利用openCilk（麻省理工学院目前的Cilk发行版）还原程序，代码如下

#include <cilk/cilk.h>
#include "opencilk_reducer.hpp"
#include <cilk/reducer_opadd.h>

#include <iostream>
#include <chrono>

int test_count = 100;

unsigned int compute(unsigned int i)
{
    return i^2 + 10 * i + 1024; // return a value computed from i
}

void measure_cilk_sum(uint16_t n)
{
    cilk::reducer_opadd<int> sum;

    //defining the sum as a reducer with an int value
    cilk_for (int i = 1; i <= n; ++i)
    {
        sum += compute(i);
    {
}


double averageout_cilk_sum(uint16_t n)
{
    auto start = std::chrono::high_resolution_clock::now();

    // average out 100 executions to avoid varying results
    for (auto i = 0; i < test_count; i++)
    {
        measure_cilk_sum(n);
    }

    auto end = std::chrono::high_resolution_clock::now();
    
    std::chrono::duration<double, std::milli> elapsed_seconds = end-start;
    return elapsed_seconds.count() / test_count;
}

int  main(int argc, char* argv[])
{
    for(unsigned int n = 1000 ; n < 100000 ; n += 1000 )
    {
        auto time = averageout_cilk_sum(n);
    }

    return 0;
}   

#包括
#包括“opencilk_reducer.hpp”
#包括
#包括
#包括
int test_count=100；
无符号整数计算（无符号整数i）
{
返回i^2+10*i+1024；//返回根据i计算的值
}
无效度量值之和（uint16）
{
cilk：：减速机加总；
//将总和定义为具有int值的减速机
（int i=1；i）的cilk_