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| // g++ -O3 -DNDEBUG -DMATSIZE=<x> benchmark.cpp -o benchmark && time ./benchmark
|
| #include <iostream>
|
| #include <Eigen/Core>
|
| #ifndef MATSIZE
| #define MATSIZE 3
| #endif
|
| using namespace std;
| using namespace Eigen;
|
| #ifndef REPEAT
| #define REPEAT 40000000
| #endif
|
| #ifndef SCALAR
| #define SCALAR double
| #endif
|
| int main(int argc, char *argv[])
| {
| Matrix<SCALAR,MATSIZE,MATSIZE> I = Matrix<SCALAR,MATSIZE,MATSIZE>::Ones();
| Matrix<SCALAR,MATSIZE,MATSIZE> m;
| for(int i = 0; i < MATSIZE; i++)
| for(int j = 0; j < MATSIZE; j++)
| {
| m(i,j) = (i+MATSIZE*j);
| }
| asm("#begin");
| for(int a = 0; a < REPEAT; a++)
| {
| m = Matrix<SCALAR,MATSIZE,MATSIZE>::Ones() + 0.00005 * (m + (m*m));
| }
| asm("#end");
| cout << m << endl;
| return 0;
| }
|
|
