54 lines
No EOL
2.2 KiB
C++
54 lines
No EOL
2.2 KiB
C++
#include <chrono>
|
|
#include <iostream>
|
|
#include "dpf.hpp"
|
|
|
|
using std::chrono::high_resolution_clock;
|
|
using std::chrono::duration_cast;
|
|
using std::chrono::duration;
|
|
using std::chrono::milliseconds;
|
|
|
|
int main(int argc, char * argv[])
|
|
{
|
|
using input_type = uint8_t;
|
|
using prg = dpf::prg::counter_wrapper<dpf::prg::dummy>;
|
|
|
|
constexpr int N = 50;
|
|
std::array<input_type, N> keys{};
|
|
for(int i=0; i<N; i++) keys[i] = i; // Create an array of keys
|
|
|
|
// eval_sequence with recipe
|
|
input_type x = 42;
|
|
auto [dpf0, dpf1] = dpf::make_dpf<prg>(x); // First DPF to be able to create the recipe
|
|
auto t1 = high_resolution_clock::now(); // To measure the time of execution
|
|
auto before = prg::count(); // To count the number of PRG invocations
|
|
auto recipe0 = dpf::make_sequence_recipe(dpf0, std::begin(keys), std::end(keys)); // Create a recipe
|
|
auto recipe1 = dpf::make_sequence_recipe(dpf1, std::begin(keys), std::end(keys)); // Create a recipe
|
|
for (int i=0; i<N; i++)
|
|
{
|
|
auto [dpf00, dpf11] = dpf::make_dpf<prg>(i); // Make 50 DPFs
|
|
dpf::eval_sequence(dpf0, recipe0); // Evaluate the DPFs with the recipe
|
|
dpf::eval_sequence(dpf1, recipe0); // Evaluate the DPFs with the recipe
|
|
}
|
|
auto after = prg::count(); // Count the number of PRG invocations
|
|
std::cout << "dpf::eval_sequence with recipe " << (after-before) << "\n";
|
|
|
|
// eval_sequence without the recipe
|
|
auto t2 = high_resolution_clock::now();
|
|
duration<double, std::milli> ms_double = t2 - t1;
|
|
std::cout << "Time of execution: " << ms_double.count() << "ms\n";
|
|
auto t3 = high_resolution_clock::now();
|
|
before = prg::count();
|
|
for (int i=0; i<N; i++)
|
|
{
|
|
auto [dpf00, dpf11] = dpf::make_dpf<prg>(i);
|
|
dpf::eval_sequence(dpf00, std::begin(keys), std::end(keys));
|
|
dpf::eval_sequence(dpf11, std::begin(keys), std::end(keys));
|
|
}
|
|
after = prg::count();
|
|
std::cout << "dpf::eval_sequence used " << (after-before) << "\n";
|
|
auto t4 = high_resolution_clock::now();
|
|
duration<double, std::milli> ms_double2 = t4 - t3;
|
|
std::cout << "Time of execution with the memoizers: " << ms_double2.count() << "ms\n";
|
|
|
|
return 0;
|
|
} |