devtools/eigen
1
0
Fork 0
mirror of https://gitlab.com/libeigen/eigen.git synced 2026-04-10 11:34:33 +08:00
Code Issues Packages Projects Releases Wiki Activity

Clang-format tests, examples, libraries, benchmarks, etc.

Browse Source
This commit is contained in:
Antonio Sánchez
2023-12-05 21:22:55 +00:00
committed by Rasmus Munk Larsen
parent 3252ecc7a4
commit 46e9cdb7fe
876 changed files with 33453 additions and 37795 deletions
Download Patch File Download Diff File Expand all files Collapse all files

100
unsupported/bench/bench_svd.cpp
View File

@@ -16,7 +16,6 @@
#include <bench/BenchTimer.h>
#include <unsupported/Eigen/SVD>
using namespace Eigen;
using namespace std;
@@ -30,94 +29,83 @@ using namespace std;
#define NUMBER_SAMPLE 2
#endif
template<typename MatrixType>
void bench_svd(const MatrixType& a = MatrixType())
{
template <typename MatrixType>
void bench_svd(const MatrixType& a = MatrixType()) {
MatrixType m = MatrixType::Random(a.rows(), a.cols());
BenchTimer timerJacobi;
BenchTimer timerBDC;
timerJacobi.reset();
timerBDC.reset();
cout << " Only compute Singular Values" <<endl;
for (int k=1; k<=NUMBER_SAMPLE; ++k)
{
cout << " Only compute Singular Values" << endl;
for (int k = 1; k <= NUMBER_SAMPLE; ++k) {
timerBDC.start();
for (int i=0; i<REPEAT; ++i)
{
for (int i = 0; i < REPEAT; ++i) {
BDCSVD<MatrixType> bdc_matrix(m);
}
timerBDC.stop();
timerJacobi.start();
for (int i=0; i<REPEAT; ++i)
{
for (int i = 0; i < REPEAT; ++i) {
JacobiSVD<MatrixType> jacobi_matrix(m);
}
timerJacobi.stop();
cout << "Sample " << k << " : " << REPEAT << " computations : Jacobi : " << fixed << timerJacobi.value() << "s ";
cout << " || " << " BDC : " << timerBDC.value() << "s " <<endl <<endl;
if (timerBDC.value() >= timerJacobi.value())
cout << "KO : BDC is " << timerJacobi.value() / timerBDC.value() << " times faster than Jacobi" <<endl;
else
cout << "OK : BDC is " << timerJacobi.value() / timerBDC.value() << " times faster than Jacobi" <<endl;
cout << " || "
<< " BDC : " << timerBDC.value() << "s " << endl
<< endl;
if (timerBDC.value() >= timerJacobi.value())
cout << "KO : BDC is " << timerJacobi.value() / timerBDC.value() << " times faster than Jacobi" << endl;
else
cout << "OK : BDC is " << timerJacobi.value() / timerBDC.value() << " times faster than Jacobi" << endl;
}
cout << " =================" <<endl;
std::cout<< std::endl;
cout << " =================" << endl;
std::cout << std::endl;
timerJacobi.reset();
timerBDC.reset();
cout << " Computes rotation matrix" <<endl;
for (int k=1; k<=NUMBER_SAMPLE; ++k)
{
cout << " Computes rotation matrix" << endl;
for (int k = 1; k <= NUMBER_SAMPLE; ++k) {
timerBDC.start();
for (int i=0; i<REPEAT; ++i)
{
BDCSVD<MatrixType> bdc_matrix(m, ComputeFullU|ComputeFullV);
for (int i = 0; i < REPEAT; ++i) {
BDCSVD<MatrixType> bdc_matrix(m, ComputeFullU | ComputeFullV);
}
timerBDC.stop();
timerJacobi.start();
for (int i=0; i<REPEAT; ++i)
{
JacobiSVD<MatrixType> jacobi_matrix(m, ComputeFullU|ComputeFullV);
for (int i = 0; i < REPEAT; ++i) {
JacobiSVD<MatrixType> jacobi_matrix(m, ComputeFullU | ComputeFullV);
}
timerJacobi.stop();
cout << "Sample " << k << " : " << REPEAT << " computations : Jacobi : " << fixed << timerJacobi.value() << "s ";
cout << " || " << " BDC : " << timerBDC.value() << "s " <<endl <<endl;
if (timerBDC.value() >= timerJacobi.value())
cout << "KO : BDC is " << timerJacobi.value() / timerBDC.value() << " times faster than Jacobi" <<endl;
else
cout << "OK : BDC is " << timerJacobi.value() / timerBDC.value() << " times faster than Jacobi" <<endl;
cout << " || "
<< " BDC : " << timerBDC.value() << "s " << endl
<< endl;
if (timerBDC.value() >= timerJacobi.value())
cout << "KO : BDC is " << timerJacobi.value() / timerBDC.value() << " times faster than Jacobi" << endl;
else
cout << "OK : BDC is " << timerJacobi.value() / timerBDC.value() << " times faster than Jacobi" << endl;
}
std::cout<< std::endl;
std::cout << std::endl;
}
int main(int argc, char* argv[]) {
std::cout << std::endl;
std::cout << "On a (Dynamic, Dynamic) (6, 6) Matrix" << std::endl;
bench_svd<Matrix<double, Dynamic, Dynamic> >(Matrix<double, Dynamic, Dynamic>(6, 6));
int main(int argc, char* argv[])
{
std::cout<< std::endl;
std::cout << "On a (Dynamic, Dynamic) (32, 32) Matrix" << std::endl;
bench_svd<Matrix<double, Dynamic, Dynamic> >(Matrix<double, Dynamic, Dynamic>(32, 32));
std::cout<<"On a (Dynamic, Dynamic) (6, 6) Matrix" <<std::endl;
bench_svd<Matrix<double,Dynamic,Dynamic> >(Matrix<double,Dynamic,Dynamic>(6, 6));
std::cout<<"On a (Dynamic, Dynamic) (32, 32) Matrix" <<std::endl;
bench_svd<Matrix<double,Dynamic,Dynamic> >(Matrix<double,Dynamic,Dynamic>(32, 32));
// std::cout<<"On a (Dynamic, Dynamic) (128, 128) Matrix" <<std::endl;
// bench_svd<Matrix<double,Dynamic,Dynamic> >(Matrix<double,Dynamic,Dynamic>(128, 128));
//std::cout<<"On a (Dynamic, Dynamic) (128, 128) Matrix" <<std::endl;
//bench_svd<Matrix<double,Dynamic,Dynamic> >(Matrix<double,Dynamic,Dynamic>(128, 128));
std::cout << "On a (Dynamic, Dynamic) (160, 160) Matrix" << std::endl;
bench_svd<Matrix<double, Dynamic, Dynamic> >(Matrix<double, Dynamic, Dynamic>(160, 160));
std::cout<<"On a (Dynamic, Dynamic) (160, 160) Matrix" <<std::endl;
bench_svd<Matrix<double,Dynamic,Dynamic> >(Matrix<double,Dynamic,Dynamic>(160, 160));
std::cout<< "--------------------------------------------------------------------"<< std::endl;
std::cout << "--------------------------------------------------------------------" << std::endl;
}