我一直在尝试研究如何将我用C++编写的质数生成器多线程化，我发现我想做的就是“并行处理”。我已经研究了大约45分钟，但似乎无法弄清楚。
我想要进行此操作的代码大约有95行，这里不方便贴出，但基本概念如下：
unsigned long long i, total;
for(i;true;i++){
total = total + i;
cout << "Your new total is " << total << endl;
}
有没有办法将它流式传输到两个处理器，让它们一起工作而不是竞争？如果可以的话，我该如何编码呢？我对C++有一定的了解，但还有很多我不知道的东西，所以非常感谢详细的答案。
编辑：第一次使用了错误类型的算法。我认为这就是它。
编辑2：由于很多答案都说这取决于我的算法，所以我会发布我的代码，因为它只有95行。
/*Generic GPL stuff, coded by me */
#include <iostream>
#include <list>
#include <fstream>
using namespace std;
int main(){
//Declare some variables and what not.
unsigned long long count = 0, misc = 0, length = 0, limit = 0;
list <long long> primes;
ifstream inFile;
ofstream outFile;
cout << "Initializing starting values based on your existing file of generated prime numbers.\n";
//Now let's get our starting values;
inFile.open("/home/user/Desktop/primes.txt");
//First, we need to find the prime generator thus far
for(unsigned long long x=0;inFile.good();x++){
inFile >> count;
if(!(bool)(x%100000000) && x!=0){
misc = x/100000000;
cout << misc << "00000000 primes read so far...\n";
}
}
inFile.close();
cout << "Highest generated prime found.\n";
//Now, as much as I hate to say it, we need to parse part of the file again now that we have the largest prime.
inFile.open("/media/ssd/primes_src.txt");
for(length; limit < count; length++){
inFile >> misc;
}
inFile.close();
limit = misc * misc;
cout << "Initialization complete. Now generating primes.\n";
//Loop time
l:
//We're just going to flat-out skip even numbers
count++;
count++;
//This checks to see if the number it's trying to test is beyond the current limit of accuracy.
if(count >= limit){
// Now if we are, we have 1 more possible prime factor
length++;
inFile.open("/media/ssd/primes_src.txt");
for(unsigned long long x=0; x < length; x++){
inFile >> misc;
}
inFile.close();
limit = misc * misc;
}
inFile.open("/media/ssd/primes_src.txt");
inFile >> misc; //We don't care about 2
for(unsigned long long x=1; x < length; x++){
inFile >> misc;
if(!(bool)(count%misc)){
inFile.close();
goto l;
}
}
inFile.close();
outFile.open("/home/user/Desktop/primes.txt", ios::out | ios::app);
//Now if we haven't been "goto"d, we add it to the file.
outFile << count << endl;
outFile.close();
goto l;
return 0;
}
/home/user/Desktop/primes.txt 是保存所有生成的质数的文件。
/media/ssd/primes_src.txt 是保存所有小于 2^32 的质数加上一个好的测量值的文件。