Benchmark with integer 32 bits coefficients.
#include <iostream>
using namespace F4;
using namespace std;
int F4::VERBOSE=0;
#ifdef USE_OPENMP
int F4::NB_THREAD=min(8, omp_get_num_procs());
#else
int F4::NB_THREAD=1;
#endif
int modulo=65521;
int cyclic6F4(bool magma)
{
cout << "#########################################################" << endl;
cout << "# CYCLIC 6 #" << endl;
cout << "#########################################################" << endl << endl;
int nbGen;
vector<Polynomial<eltType>> polCyclic6;
polCyclic6.emplace_back("x0+x1+x2+x3+x4+x5");
polCyclic6.emplace_back("x0*x1+x1*x2+x2*x3+x3*x4+x0*x5+x4*x5");
polCyclic6.emplace_back("x0*x1*x2+x1*x2*x3+x2*x3*x4+x0*x1*x5+x0*x4*x5+x3*x4*x5");
polCyclic6.emplace_back("x0*x1*x2*x3+x1*x2*x3*x4+x0*x1*x2*x5+x0*x1*x4*x5+x0*x3*x4*x5+x2*x3*x4*x5");
polCyclic6.emplace_back("x0*x1*x2*x3*x4+x0*x1*x2*x3*x5+x0*x1*x2*x4*x5+x0*x1*x3*x4*x5+x0*x2*x3*x4*x5+x1*x2*x3*x4*x5");
polCyclic6.emplace_back("x0*x1*x2*x3*x4*x5-1");
nbGen=cyclic6.f4();
if(magma)
{
cyclic6.printReducedGroebnerBasis("cyclic6", modulo);
}
return nbGen;
}
int cyclic7F4(bool magma)
{
cout << "#########################################################" << endl;
cout << "# CYCLIC 7 #" << endl;
cout << "#########################################################" << endl << endl;
int nbGen;
vector<Polynomial<eltType>> polCyclic7;
polCyclic7.emplace_back("x0+x1+x2+x3+x4+x5+x6");
polCyclic7.emplace_back("x0*x1+x1*x2+x2*x3+x3*x4+x4*x5+x0*x6+x5*x6");
polCyclic7.emplace_back("x0*x1*x2+x1*x2*x3+x2*x3*x4+x3*x4*x5+x0*x1*x6+x0*x5*x6+x4*x5*x6");
polCyclic7.emplace_back("x0*x1*x2*x3+x1*x2*x3*x4+x2*x3*x4*x5+x0*x1*x2*x6+x0*x1*x5*x6+x0*x4*x5*x6+x3*x4*x5*x6");
polCyclic7.emplace_back("x0*x1*x2*x3*x4+x1*x2*x3*x4*x5+x0*x1*x2*x3*x6+x0*x1*x2*x5*x6+x0*x1*x4*x5*x6+x0*x3*x4*x5*x6+x2*x3*x4*x5*x6");
polCyclic7.emplace_back("x0*x1*x2*x3*x4*x5+x0*x1*x2*x3*x4*x6+x0*x1*x2*x3*x5*x6+x0*x1*x2*x4*x5*x6+x0*x1*x3*x4*x5*x6+x0*x2*x3*x4*x5*x6+x1*x2*x3*x4*x5*x6");
polCyclic7.emplace_back("x0*x1*x2*x3*x4*x5*x6-1");
nbGen=cyclic7.f4();
if(magma)
{
cyclic7.printReducedGroebnerBasis("cyclic7", modulo);
}
return nbGen;
}
int cyclic8F4(bool magma)
{
cout << "#########################################################" << endl;
cout << "# CYCLIC 8 #" << endl;
cout << "#########################################################" << endl << endl;
int nbGen;
vector<Polynomial<eltType>> polCyclic8;
polCyclic8.emplace_back("x0+x1+x2+x3+x4+x5+x6+x7");
polCyclic8.emplace_back("x0*x1+x1*x2+x2*x3+x3*x4+x4*x5+x5*x6+x0*x7+x6*x7");
polCyclic8.emplace_back("x0*x1*x2+x1*x2*x3+x2*x3*x4+x3*x4*x5+x4*x5*x6+x0*x1*x7+x0*x6*x7+x5*x6*x7");
polCyclic8.emplace_back("x0*x1*x2*x3+x1*x2*x3*x4+x2*x3*x4*x5+x3*x4*x5*x6+x0*x1*x2*x7+x0*x1*x6*x7+x0*x5*x6*x7+x4*x5*x6*x7");
polCyclic8.emplace_back("x0*x1*x2*x3*x4+x1*x2*x3*x4*x5+x2*x3*x4*x5*x6+x0*x1*x2*x3*x7+x0*x1*x2*x6*x7+x0*x1*x5*x6*x7+x0*x4*x5*x6*x7+x3*x4*x5*x6*x7");
polCyclic8.emplace_back("x0*x1*x2*x3*x4*x5+x1*x2*x3*x4*x5*x6+x0*x1*x2*x3*x4*x7+x0*x1*x2*x3*x6*x7+x0*x1*x2*x5*x6*x7+x0*x1*x4*x5*x6*x7+x0*x3*x4*x5*x6*x7+x2*x3*x4*x5*x6*x7");
polCyclic8.emplace_back("x0*x1*x2*x3*x4*x5*x6+x0*x1*x2*x3*x4*x5*x7+x0*x1*x2*x3*x4*x6*x7+x0*x1*x2*x3*x5*x6*x7+x0*x1*x2*x4*x5*x6*x7+x0*x1*x3*x4*x5*x6*x7+x0*x2*x3*x4*x5*x6*x7+x1*x2*x3*x4*x5*x6*x7");
polCyclic8.emplace_back("x0*x1*x2*x3*x4*x5*x6*x7-1");
nbGen=cyclic8.f4();
if(magma)
{
cyclic8.printReducedGroebnerBasis("cyclic8", modulo);
}
return nbGen;
}
int cyclic9F4(bool magma)
{
cout << "#########################################################" << endl;
cout << "# CYCLIC 9 #" << endl;
cout << "#########################################################" << endl << endl;
int nbGen;
vector<Polynomial<eltType>> polCyclic9;
polCyclic9.emplace_back("x0+x1+x2+x3+x4+x5+x6+x7+x8");
polCyclic9.emplace_back("x0*x1+x1*x2+x2*x3+x3*x4+x4*x5+x5*x6+x6*x7+x0*x8+x7*x8");
polCyclic9.emplace_back("x0*x1*x2+x1*x2*x3+x2*x3*x4+x3*x4*x5+x4*x5*x6+x5*x6*x7+x0*x1*x8+x0*x7*x8+x6*x7*x8");
polCyclic9.emplace_back("x0*x1*x2*x3+x1*x2*x3*x4+x2*x3*x4*x5+x3*x4*x5*x6+x4*x5*x6*x7+x0*x1*x2*x8+x0*x1*x7*x8+x0*x6*x7*x8+x5*x6*x7*x8");
polCyclic9.emplace_back("x0*x1*x2*x3*x4+x1*x2*x3*x4*x5+x2*x3*x4*x5*x6+x3*x4*x5*x6*x7+x0*x1*x2*x3*x8+x0*x1*x2*x7*x8+x0*x1*x6*x7*x8+x0*x5*x6*x7*x8+x4*x5*x6*x7*x8");
polCyclic9.emplace_back("x0*x1*x2*x3*x4*x5+x1*x2*x3*x4*x5*x6+x2*x3*x4*x5*x6*x7+x0*x1*x2*x3*x4*x8+x0*x1*x2*x3*x7*x8+x0*x1*x2*x6*x7*x8+x0*x1*x5*x6*x7*x8+x0*x4*x5*x6*x7*x8+x3*x4*x5*x6*x7*x8");
polCyclic9.emplace_back("x0*x1*x2*x3*x4*x5*x6+x1*x2*x3*x4*x5*x6*x7+x0*x1*x2*x3*x4*x5*x8+x0*x1*x2*x3*x4*x7*x8+x0*x1*x2*x3*x6*x7*x8+x0*x1*x2*x5*x6*x7*x8+x0*x1*x4*x5*x6*x7*x8+x0*x3*x4*x5*x6*x7*x8+x2*x3*x4*x5*x6*x7*x8");
polCyclic9.emplace_back("x0*x1*x2*x3*x4*x5*x6*x7+x0*x1*x2*x3*x4*x5*x6*x8+x0*x1*x2*x3*x4*x5*x7*x8+x0*x1*x2*x3*x4*x6*x7*x8+x0*x1*x2*x3*x5*x6*x7*x8+x0*x1*x2*x4*x5*x6*x7*x8+x0*x1*x3*x4*x5*x6*x7*x8+x0*x2*x3*x4*x5*x6*x7*x8+x1*x2*x3*x4*x5*x6*x7*x8");
polCyclic9.emplace_back("x0*x1*x2*x3*x4*x5*x6*x7*x8-1");
nbGen=cyclic9.f4();
if(magma)
{
cyclic9.printReducedGroebnerBasis("cyclic9", modulo);
}
return nbGen;
}
int katsura9F4(bool magma)
{
cout << "#########################################################" << endl;
cout << "# KATSURA 9 #" << endl;
cout << "#########################################################" << endl << endl;
int nbGen;
vector<Polynomial<eltType>> polKatsura9;
polKatsura9.emplace_back("x0+2*x1+2*x2+2*x3+2*x4+2*x5+2*x6+2*x7+2*x8-1");
polKatsura9.emplace_back("x0^2+2*x1^2+2*x2^2+2*x3^2+2*x4^2+2*x5^2+2*x6^2+2*x7^2+2*x8^2-x0");
polKatsura9.emplace_back("2*x0*x1+2*x1*x2+2*x2*x3+2*x3*x4+2*x4*x5+2*x5*x6+2*x6*x7+2*x7*x8-x1");
polKatsura9.emplace_back("x1^2+2*x0*x2+2*x1*x3+2*x2*x4+2*x3*x5+2*x4*x6+2*x5*x7+2*x6*x8-x2");
polKatsura9.emplace_back("2*x1*x2+2*x0*x3+2*x1*x4+2*x2*x5+2*x3*x6+2*x4*x7+2*x5*x8-x3");
polKatsura9.emplace_back("x2^2+2*x1*x3+2*x0*x4+2*x1*x5+2*x2*x6+2*x3*x7+2*x4*x8-x4");
polKatsura9.emplace_back("2*x2*x3+2*x1*x4+2*x0*x5+2*x1*x6+2*x2*x7+2*x3*x8-x5");
polKatsura9.emplace_back("x3^2+2*x2*x4+2*x1*x5+2*x0*x6+2*x1*x7+2*x2*x8-x6");
polKatsura9.emplace_back("2*x3*x4+2*x2*x5+2*x1*x6+2*x0*x7+2*x1*x8-x7");
nbGen=katsura9.f4();
if(magma)
{
katsura9.printReducedGroebnerBasis("katsura9", modulo);
}
return nbGen;
}
int katsura10F4(bool magma)
{
cout << "#########################################################" << endl;
cout << "# KATSURA 10 #" << endl;
cout << "#########################################################" << endl << endl;
int nbGen;
vector<Polynomial<eltType>> polKatsura10;
polKatsura10.emplace_back("x0+2*x1+2*x2+2*x3+2*x4+2*x5+2*x6+2*x7+2*x8+2*x9-1");
polKatsura10.emplace_back("x0^2+2*x1^2+2*x2^2+2*x3^2+2*x4^2+2*x5^2+2*x6^2+2*x7^2+2*x8^2+2*x9^2-x0");
polKatsura10.emplace_back("2*x0*x1+2*x1*x2+2*x2*x3+2*x3*x4+2*x4*x5+2*x5*x6+2*x6*x7+2*x7*x8+2*x8*x9-x1");
polKatsura10.emplace_back("x1^2+2*x0*x2+2*x1*x3+2*x2*x4+2*x3*x5+2*x4*x6+2*x5*x7+2*x6*x8+2*x7*x9-x2");
polKatsura10.emplace_back("2*x1*x2+2*x0*x3+2*x1*x4+2*x2*x5+2*x3*x6+2*x4*x7+2*x5*x8+2*x6*x9-x3");
polKatsura10.emplace_back("x2^2+2*x1*x3+2*x0*x4+2*x1*x5+2*x2*x6+2*x3*x7+2*x4*x8+2*x5*x9-x4");
polKatsura10.emplace_back("2*x2*x3+2*x1*x4+2*x0*x5+2*x1*x6+2*x2*x7+2*x3*x8+2*x4*x9-x5");
polKatsura10.emplace_back("x3^2+2*x2*x4+2*x1*x5+2*x0*x6+2*x1*x7+2*x2*x8+2*x3*x9-x6");
polKatsura10.emplace_back("2*x3*x4+2*x2*x5+2*x1*x6+2*x0*x7+2*x1*x8+2*x2*x9-x7");
polKatsura10.emplace_back("x4^2+2*x3*x5+2*x2*x6+2*x1*x7+2*x0*x8+2*x1*x9-x8");
nbGen=katsura10.f4();
if(magma)
{
katsura10.printReducedGroebnerBasis("katsura10", modulo);
}
return nbGen;
}
int katsura11F4(bool magma)
{
cout << "#########################################################" << endl;
cout << "# KATSURA 11 #" << endl;
cout << "#########################################################" << endl << endl;
int nbGen;
vector<Polynomial<eltType>> polKatsura11;
polKatsura11.emplace_back("x0+2*x1+2*x2+2*x3+2*x4+2*x5+2*x6+2*x7+2*x8+2*x9+2*x10-1");
polKatsura11.emplace_back("x0^2+2*x1^2+2*x2^2+2*x3^2+2*x4^2+2*x5^2+2*x6^2+2*x7^2+2*x8^2+2*x9^2+2*x10^2-x0");
polKatsura11.emplace_back("2*x0*x1+2*x1*x2+2*x2*x3+2*x3*x4+2*x4*x5+2*x5*x6+2*x6*x7+2*x7*x8+2*x8*x9+2*x9*x10-x1");
polKatsura11.emplace_back("x1^2+2*x0*x2+2*x1*x3+2*x2*x4+2*x3*x5+2*x4*x6+2*x5*x7+2*x6*x8+2*x7*x9+2*x8*x10-x2");
polKatsura11.emplace_back("2*x1*x2+2*x0*x3+2*x1*x4+2*x2*x5+2*x3*x6+2*x4*x7+2*x5*x8+2*x6*x9+2*x7*x10-x3");
polKatsura11.emplace_back("x2^2+2*x1*x3+2*x0*x4+2*x1*x5+2*x2*x6+2*x3*x7+2*x4*x8+2*x5*x9+2*x6*x10-x4");
polKatsura11.emplace_back("2*x2*x3+2*x1*x4+2*x0*x5+2*x1*x6+2*x2*x7+2*x3*x8+2*x4*x9+2*x5*x10-x5");
polKatsura11.emplace_back("x3^2+2*x2*x4+2*x1*x5+2*x0*x6+2*x1*x7+2*x2*x8+2*x3*x9+2*x4*x10-x6");
polKatsura11.emplace_back("2*x3*x4+2*x2*x5+2*x1*x6+2*x0*x7+2*x1*x8+2*x2*x9+2*x3*x10-x7");
polKatsura11.emplace_back("x4^2+2*x3*x5+2*x2*x6+2*x1*x7+2*x0*x8+2*x1*x9+2*x2*x10-x8");
polKatsura11.emplace_back("2*x4*x5+2*x3*x6+2*x2*x7+2*x1*x8+2*x0*x9+2*x1*x10-x9");
nbGen=katsura11.f4();
if(magma)
{
katsura11.printReducedGroebnerBasis("katsura11", modulo);
}
return nbGen;
}
int katsura12F4(bool magma)
{
cout << "#########################################################" << endl;
cout << "# KATSURA 12 #" << endl;
cout << "#########################################################" << endl << endl;
int nbGen;
vector<Polynomial<eltType>> polKatsura12;
polKatsura12.emplace_back("x0+2*x1+2*x2+2*x3+2*x4+2*x5+2*x6+2*x7+2*x8+2*x9+2*x10+2*x11-1");
polKatsura12.emplace_back("x0^2+2*x1^2+2*x2^2+2*x3^2+2*x4^2+2*x5^2+2*x6^2+2*x7^2+2*x8^2+2*x9^2+2*x10^2+2*x11^2-x0");
polKatsura12.emplace_back("2*x0*x1+2*x1*x2+2*x2*x3+2*x3*x4+2*x4*x5+2*x5*x6+2*x6*x7+2*x7*x8+2*x8*x9+2*x9*x10+2*x10*x11-x1");
polKatsura12.emplace_back("x1^2+2*x0*x2+2*x1*x3+2*x2*x4+2*x3*x5+2*x4*x6+2*x5*x7+2*x6*x8+2*x7*x9+2*x8*x10+2*x9*x11-x2");
polKatsura12.emplace_back("2*x1*x2+2*x0*x3+2*x1*x4+2*x2*x5+2*x3*x6+2*x4*x7+2*x5*x8+2*x6*x9+2*x7*x10+2*x8*x11-x3");
polKatsura12.emplace_back("x2^2+2*x1*x3+2*x0*x4+2*x1*x5+2*x2*x6+2*x3*x7+2*x4*x8+2*x5*x9+2*x6*x10+2*x7*x11-x4");
polKatsura12.emplace_back("2*x2*x3+2*x1*x4+2*x0*x5+2*x1*x6+2*x2*x7+2*x3*x8+2*x4*x9+2*x5*x10+2*x6*x11-x5");
polKatsura12.emplace_back("x3^2+2*x2*x4+2*x1*x5+2*x0*x6+2*x1*x7+2*x2*x8+2*x3*x9+2*x4*x10+2*x5*x11-x6");
polKatsura12.emplace_back("2*x3*x4+2*x2*x5+2*x1*x6+2*x0*x7+2*x1*x8+2*x2*x9+2*x3*x10+2*x4*x11-x7");
polKatsura12.emplace_back("x4^2+2*x3*x5+2*x2*x6+2*x1*x7+2*x0*x8+2*x1*x9+2*x2*x10+2*x3*x11-x8");
polKatsura12.emplace_back("2*x4*x5+2*x3*x6+2*x2*x7+2*x1*x8+2*x0*x9+2*x1*x10+2*x2*x11-x9");
polKatsura12.emplace_back("x5^2+2*x4*x6+2*x3*x7+2*x2*x8+2*x1*x9+2*x0*x10+2*x1*x11-x10");
nbGen=katsura12.f4();
if(magma)
{
katsura12.printReducedGroebnerBasis("katsura12", modulo);
}
return nbGen;
}
int randomIdealF4(bool magma)
{
cout << "#########################################################" << endl;
cout << "# RANDOM 10 #" << endl;
cout << "#########################################################" << endl << endl;
int nbGen;
vector<Polynomial<eltType>> polRandomIdeal;
polRandomIdeal.emplace_back("-25655*x1^2*x2^2*x4 - 27093*x0*x2*x3*x5^2 + 15696*x5^5 - 31611*x0*x1^3 + 10089*x0^3*x2 - 2759*x1^2*x3^2 + 3186*x1*x3^2*x4 - 7916*x1*x2^2*x5 + 16867*x1*x4^2*x5 - 26502*x2^2*x4");
polRandomIdeal.emplace_back("24757*x2^4*x3 + 13532*x0*x1*x2*x3^2 - 32273*x2^2*x3^3 + 24976*x2*x3^4 + 6577*x0*x2^3*x5 - 14251*x1*x3^2*x4*x5 + 8633*x0*x3*x4^2 + 18508*x0*x4^3 + 12700*x1*x2*x5^2 + 21103*x1*x5");
polRandomIdeal.emplace_back("-14089*x0^2*x2^3 + 6374*x0*x1^2*x3^2 - 11572*x2^3*x3^2 + 17253*x0^3*x1*x4 - 26476*x2*x3*x4^3 - 5794*x2*x4^3*x5 - 9292*x0^3*x1 + 9740*x0^3*x2 - 9633*x0^2*x5^2 + 15791*x4");
polRandomIdeal.emplace_back("520*x0^2*x1*x3*x5 - 29475*x3^4*x5 + 19553*x1*x4^3*x5 - 23508*x0*x3^2*x5^2 - 5914*x0^2*x4*x5^2 - 1142*x0*x2*x4*x5 + 18000*x0*x2*x3 + 9342*x2*x3^2 + 8761*x0^2*x5 + 19293*x2*x5");
polRandomIdeal.emplace_back("-29406*x0^4*x1 - 6933*x1*x2^4 - 16593*x1^2*x2*x3^2 - 12720*x1*x3^4 - 8580*x4*x5^4 - 17076*x1^2*x3*x4 + 24339*x0*x2*x3*x4 + 7722*x1*x3*x4^2 - 14196*x1*x2*x3 - 15797*x1^2*x5");
polRandomIdeal.emplace_back("31060*x0^3*x1*x2 - 6848*x2*x3^3*x5 - 17952*x1*x3*x4^2*x5 + 24428*x0*x2*x3*x5^2 + 20435*x0^4 - 20926*x1^2*x2*x3 + 18778*x2^2*x3^2 + 24106*x2*x4^3 - 11252*x5^4 - 20128*x2*x3");
polRandomIdeal.emplace_back("2175*x0^3*x4^2 + 24248*x0^2*x3*x4*x5 - 25078*x0*x2*x3*x4*x5 + 17127*x0*x3^2*x4*x5 + 16204*x3^2*x4*x5^2 + 3683*x0*x1*x2*x3 + 14115*x1*x4^2*x5 - 32337*x0^2*x1 - 17348*x1^2*x5 + 3481*x1*x4");
polRandomIdeal.emplace_back("-10922*x2^3*x3^2 + 11055*x2^2*x3^3 - 24940*x2^2*x3*x5^2 - 2405*x2*x5^4 - 26339*x1*x2*x3^2 - 4489*x0*x3^2*x5 + 2022*x1*x3*x4*x5 + 6254*x3*x4^2*x5 + 19234*x1^2*x3 + 28792*x2*x4*x5");
polRandomIdeal.emplace_back("-30691*x0^2*x2*x3^2 + 6407*x0*x2*x4^3 + 30127*x1*x4^4 + 20623*x2*x3*x4^2*x5 + 14919*x0*x3^2*x5^2 + 11410*x1^2*x4^2 + 11040*x0*x2*x4^2 - 23568*x4*x5^3 + 12549*x1^2*x3 - 19452*x2^2*x3");
polRandomIdeal.emplace_back("-21749*x0^3*x1^2 + 31426*x2^3*x4^2 + 24770*x3^2*x4^3 - 8527*x0^3*x1*x5 - 24637*x0^2*x1*x3*x5 - 12368*x0*x1*x2*x3*x5 + 12346*x1*x2^2*x3*x5 - 27520*x0*x5^4 - 8249*x1^2*x3*x4 - 4866*x0*x2*x3*x4");
nbGen=randomIdeal.f4();
if(magma)
{
randomIdeal.printReducedGroebnerBasis("randomIdeal", modulo);
}
return nbGen;
}
int randomIdealExampleF4(bool magma)
{
cout << "#########################################################" << endl;
cout << "# RANDOM 4 #" << endl;
cout << "#########################################################" << endl << endl;
int nbGen;
vector<Polynomial<eltType>> polRandomIdeal;
polRandomIdeal.emplace_back("x1+2*x2+3*x3");
polRandomIdeal.emplace_back("4*x0+5*x1+6*x2+7*x3");
polRandomIdeal.emplace_back("8*x0*x1+9*x1*x2+10*x2*x3");
nbGen=randomIdeal.f4();
if(magma)
{
randomIdeal.printReducedGroebnerBasis("randomIdeal4", modulo);
}
randomIdeal.printReducedGroebnerBasis(true);
return nbGen;
}
int main (int argc, char **argv)
{
cout << "#########################################################" << endl;
cout << "# BENCHMARK INT #" << endl;
cout << "#########################################################" << endl << endl;
chrono::steady_clock::time_point start;
typedef chrono::duration<int,milli> millisecs_t;
cout << NB_THREAD << " threads used " << endl << endl;
bool magma = false;
int nbGen;
ofstream file("benchmark-int.txt");
if (file)
{
file << "Benchmark for ideal with integer type coefficient." << endl << endl << endl;
}
start=chrono::steady_clock::now();
nbGen=randomIdealF4(magma);
if (file)
{
file << "Random 10 : " << chrono::duration_cast<millisecs_t>(chrono::steady_clock::now()-start).count() << " ms (" << nbGen << " generators)" << endl << endl;
}
start=chrono::steady_clock::now();
nbGen=cyclic8F4(magma);
if (file)
{
file << "Cyclic 8 : " << chrono::duration_cast<millisecs_t>(chrono::steady_clock::now()-start).count() << " ms (" << nbGen << " generators)" << endl << endl;
}
start=chrono::steady_clock::now();
nbGen=katsura12F4(magma);
if (file)
{
file << "Katsura 12 : " << chrono::duration_cast<millisecs_t>(chrono::steady_clock::now()-start).count() << " ms (" << nbGen << " generators)" << endl << endl;
}
return 0;
}