Parallel Patterns for C++ Programmer

In Amino project, we've created several experimental parallel patterns in C++. There are already advanced parallel patterns for Java programmers, such as Fork/Join from Doug Lea. But things are so ready for C++ world.

Under the current release of Amino library project, we have created three parallelized version of existing patterns from STL. The method signature is very close to the original one:

1. Foreach



Pattern Usage	Computing Kernel
vector<int> dataV; ThreadPoolExecutor exec; for_each(exec, 2, dataV.begin(), dataV.end(), sum); exec.shutdown(); exec.waitTermination();	void sum (int n) { result += n; }



2. Transform



Pattern Usage	Computing Kernel
UnaryFunc<int> uf; vector<int> dataV; int i = 0; for ( ; i1); } ThreadPoolExecutor exec; // change each elemet to its twice transform(exec, 2, dataV.begin(), dataV.end(), dataV.begin(), uf); exec.shutdown(); exec.waitTermination();	template<typename ParaType> class UnaryFunc { public: ParaType operator()(ParaType element) { return 2 * element; } };



3. Accumulate



Pattern Usage	Computing Kernel
vector<int> dataV; // Test the function 1 int result = accumulate<int>::iterator, int, ThreadPoolExecutor>(exec, 2, dataV.begin(), dataV.end()); exec.shutdown(); exec.waitTermination();	template<typename ParaType> class UnaryFunc { public: ParaType operator()(ParaType element) { return 2 * element; } };

Please note these patterns are in pretty early stage. The performance is still ridiculous now. Please let us know your opinion about the API design. And contributions are always welcome!