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Add timers and run multiple times

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This commit is contained in:
Tom Deakin 2016-04-27 12:08:49 +01:00
parent 40c787d040
commit c28e70ae70
1 changed files with 38 additions and 7 deletions
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37
src/main.cpp
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@ -4,6 +4,7 @@
#include <numeric>
#include <cmath>
#include <limits>
#include <chrono>
#include "common.h"
#include "Stream.h"
@ -11,6 +12,7 @@
const unsigned int ARRAY_SIZE = 52428800;
const unsigned int ntimes = 10;
#define IMPLEMENTATION_STRING "CUDA"
@ -37,15 +39,44 @@ int main(int argc, char *argv[])
stream->write_arrays(a, b, c);
// List of times
std::vector< std::vector<double> > timings;
// Declare timers
std::chrono::high_resolution_clock::time_point t1, t2;
// Main loop
for (unsigned int k = 0; k < ntimes; k++)
{
std::vector<double> times;
t1 = std::chrono::high_resolution_clock::now();
stream->copy();
t2 = std::chrono::high_resolution_clock::now();
times.push_back(std::chrono::duration_cast<std::chrono::duration<double> >(t2 - t1).count());
t1 = std::chrono::high_resolution_clock::now();
stream->mul();
t2 = std::chrono::high_resolution_clock::now();
times.push_back(std::chrono::duration_cast<std::chrono::duration<double> >(t2 - t1).count());
t1 = std::chrono::high_resolution_clock::now();
stream->add();
t2 = std::chrono::high_resolution_clock::now();
times.push_back(std::chrono::duration_cast<std::chrono::duration<double> >(t2 - t1).count());
t1 = std::chrono::high_resolution_clock::now();
stream->triad();
t2 = std::chrono::high_resolution_clock::now();
times.push_back(std::chrono::duration_cast<std::chrono::duration<double> >(t2 - t1).count());
timings.push_back(times);
}
// Check solutions
stream->read_arrays(a, b, c);
std::cout << a[105] << std::endl;
check_solution<double>(1, a, b, c);
check_solution<double>(ntimes, a, b, c);
delete[] stream;