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| // g++ -fopenmp -I .. -O3 -DNDEBUG -finline-limit=1000 benchmarkX.cpp -o b && time ./b
|
| #include <iostream>
|
| #include <Eigen/Core>
|
| using namespace std;
| using namespace Eigen;
|
| #ifndef MATTYPE
| #define MATTYPE MatrixXLd
| #endif
|
| #ifndef MATSIZE
| #define MATSIZE 400
| #endif
|
| #ifndef REPEAT
| #define REPEAT 100
| #endif
|
| int main(int argc, char *argv[])
| {
| MATTYPE I = MATTYPE::Ones(MATSIZE,MATSIZE);
| MATTYPE m(MATSIZE,MATSIZE);
| for(int i = 0; i < MATSIZE; i++) for(int j = 0; j < MATSIZE; j++)
| {
| m(i,j) = (i+j+1)/(MATSIZE*MATSIZE);
| }
| for(int a = 0; a < REPEAT; a++)
| {
| m = I + 0.0001 * (m + m*m);
| }
| cout << m(0,0) << endl;
| return 0;
| }
|
|
