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Intrinsics.cpp
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// Intrinsics.cpp : Defines the entry point for the console application.
//
#include "stdafx.h"
#include <intrin.h>
#include <memory>
#include <iostream>
#include <vector>
#include <chrono>
#include "matrix.h"
std::shared_ptr<matrix> _m1;
std::shared_ptr<matrix> _m2;
int main()
{
_m1 = std::make_shared<matrix>(1100, 2300);
_m2 = std::make_shared<matrix>(2300, 1100);
{
// Populate the data with random values
matrix* m1 = _m1.get();
matrix* m2 = _m2.get();
float val(0);
for (unsigned int row = 0; row < m1->rows(); row++) {
for (unsigned int col = 0; col < m1->cols(); ++col) {
m1->setValue(row, col, sin(-val));
val++;
}
}
val = 0;
for (unsigned int row = 0; row < m2->rows(); row++) {
for (unsigned int col = 0; col < m2->cols(); ++col) {
m2->setValue(row, col, cos(val++));
}
}
}
std::cout << "m1: " << _m1->rows() << "x" << _m1->cols() << std::endl;
std::cout << "m2: " << _m2->rows() << "x" << _m2->cols() << std::endl;
/**** Additions *****/
{
std::cout << "Additions:" << std::endl;
auto startTime = std::chrono::high_resolution_clock::now();
auto additionNonVectorised = matrix::addNonVectorised(_m1.get(), _m1.get());
auto endTime = std::chrono::high_resolution_clock::now();
auto dif = endTime - startTime;
std::cout << "Non-vectorised Time: " <<
std::chrono::duration_cast<std::chrono::nanoseconds>(dif).count() <<
"ns" << std::endl;
startTime = std::chrono::high_resolution_clock::now();
auto additionVectorised = matrix::addVectorised256(_m1.get(), _m1.get());
endTime = std::chrono::high_resolution_clock::now();
dif = endTime - startTime;
std::cout << "Vectorised Time: " <<
std::chrono::duration_cast<std::chrono::nanoseconds>(dif).count() <<
"ns" << std::endl;
std::cout << std::endl;
if (additionNonVectorised != additionVectorised)
std::cout << "Differences" << std::endl;
}
/**** Subtractiosn *****/
{
std::cout << "Subtractions:" << std::endl;
auto startTime = std::chrono::high_resolution_clock::now();
auto subtractionNonVectorised = matrix::subtractNonVectorised(_m1.get(), _m1.get());
auto endTime = std::chrono::high_resolution_clock::now();
auto dif = endTime - startTime;
std::cout << "Non-vectorised Time: " <<
std::chrono::duration_cast<std::chrono::nanoseconds>(dif).count() <<
"ns" << std::endl;
startTime = std::chrono::high_resolution_clock::now();
auto subtractionVectorised = matrix::subtractVectorised256(_m1.get(), _m1.get());
endTime = std::chrono::high_resolution_clock::now();
dif = endTime - startTime;
std::cout << "Vectorised Time: " <<
std::chrono::duration_cast<std::chrono::nanoseconds>(dif).count() <<
"ns" << std::endl;
std::cout << std::endl;
if (subtractionNonVectorised != subtractionVectorised)
std::cout << "Differences" << std::endl;
}
/**** Multiplications *****/
{
auto calcCount = ((unsigned long long) _m1->rows() * (unsigned long long) _m1->cols() * (unsigned long long) _m2->cols());
auto origPrecision = std::cout.precision();
std::cout.precision(3);
std::cout << "Calc Count: " << (double) calcCount / 1000000000 << " GFLOPs" << std::endl;
std::cout.precision(origPrecision);
std::cout << "Performing matrix multiplication (Non-vectorised / naive loop)" << std::endl;
auto startTime = std::chrono::high_resolution_clock::now();
auto m3 = matrix::multiplyNonVectorised(_m1.get(), _m2.get());
auto endTime = std::chrono::high_resolution_clock::now();
auto dif = endTime - startTime;
std::cout <<
"Finished - " <<
std::chrono::duration_cast<std::chrono::milliseconds>(dif).count() <<
"ms (" <<
((double)calcCount / std::chrono::duration_cast<std::chrono::nanoseconds>(dif).count()) <<
"GFLOPs)" <<
std::endl;
std::cout << "Performing matrix multiplication (Non-vectorised / v2)" << std::endl;
startTime = std::chrono::high_resolution_clock::now();
auto m4 = matrix::multiplyNonVectorised2(_m1.get(), _m2.get());
endTime = std::chrono::high_resolution_clock::now();
dif = endTime - startTime;
std::cout <<
"Finished - " <<
std::chrono::duration_cast<std::chrono::milliseconds>(dif).count() <<
"ms (" <<
((double)calcCount / std::chrono::duration_cast<std::chrono::nanoseconds>(dif).count()) <<
"GFLOPs)" <<
std::endl;
std::cout << "Performing matrix multiplication (vectorised - naive loop)" << std::endl;
startTime = std::chrono::high_resolution_clock::now();
auto m5 = matrix::multipleVectorised256(_m1.get(), _m2.get());
endTime = std::chrono::high_resolution_clock::now();
dif = endTime - startTime;
std::cout <<
"Finished - " <<
std::chrono::duration_cast<std::chrono::milliseconds>(dif).count() <<
"ms (" <<
((double)calcCount / std::chrono::duration_cast<std::chrono::nanoseconds>(dif).count()) <<
"GFLOPs)" <<
std::endl;
std::cout << "Performing matrix multiplication (vectorised - v2)" << std::endl;
startTime = std::chrono::high_resolution_clock::now();
auto m6 = matrix::multipleVectorised256v2(_m1.get(), _m2.get());
endTime = std::chrono::high_resolution_clock::now();
dif = endTime - startTime;
std::cout <<
"Finished - " <<
std::chrono::duration_cast<std::chrono::milliseconds>(dif).count() <<
"ms (" <<
((double)calcCount / std::chrono::duration_cast<std::chrono::nanoseconds>(dif).count()) <<
"GFLOPs)" <<
std::endl;
std::cout << std::endl << "Checking Differences.." << std::endl;
if (m3 != m4) {
std::cout << "Differences between m3 and m4" << std::endl;
}
if (m3 != m5) {
std::cout << "Differences between m3 and m5" << std::endl;
}
if (m3 != m6) {
std::cout << "Differences between m3 and m6" << std::endl;
}
if (m4 != m5) {
std::cout << "Differences between m4 and m5" << std::endl;
}
if (m4 != m6) {
std::cout << "Differences between m4 and m6" << std::endl;
}
if (m5 != m6) {
std::cout << "Differences between m5 and m6" << std::endl;
}
}
return 0;
}