mirror of
https://github.com/paboyle/Grid.git
synced 2024-09-20 17:25:37 +01:00
60 lines
1.5 KiB
C++
60 lines
1.5 KiB
C++
#include "Grid.h"
|
|
|
|
|
|
using namespace std;
|
|
using namespace Grid;
|
|
using namespace Grid::QCD;
|
|
|
|
int main (int argc, char ** argv)
|
|
{
|
|
Grid_init(&argc,&argv);
|
|
|
|
std::vector<int> latt_size = GridDefaultLatt();
|
|
std::vector<int> simd_layout = GridDefaultSimd(4,vComplex::Nsimd());
|
|
std::vector<int> mpi_layout = GridDefaultMpi();
|
|
|
|
latt_size.resize(4);
|
|
|
|
latt_size[0] = 8;
|
|
latt_size[1] = 8;
|
|
latt_size[2] = 8;
|
|
latt_size[3] = 8;
|
|
double volume = latt_size[0]*latt_size[1]*latt_size[2]*latt_size[3];
|
|
|
|
GridCartesian Fine(latt_size,simd_layout,mpi_layout);
|
|
|
|
|
|
std::vector<int> seeds({6,7,8,80});
|
|
GridParallelRNG pRNG(&Fine);
|
|
pRNG.SeedFixedIntegers(seeds);
|
|
|
|
std::vector<int> seedsS({1,2,3,4});
|
|
GridSerialRNG sRNG;
|
|
sRNG.SeedFixedIntegers(seedsS);
|
|
|
|
LatticeGaugeField U(&Fine);
|
|
|
|
SU3::HotConfiguration(pRNG, U);
|
|
|
|
// simplify template declaration? Strip the lorentz from the second template
|
|
WilsonGaugeActionR Waction(6.0);
|
|
|
|
//Collect actions
|
|
ActionLevel<LatticeGaugeField> Level1;
|
|
Level1.push_back(&Waction);
|
|
ActionSet<LatticeGaugeField> FullSet;
|
|
FullSet.push_back(Level1);
|
|
|
|
// Create integrator
|
|
typedef MinimumNorm2<LatticeGaugeField> IntegratorAlgorithm;// change here to modify the algorithm
|
|
IntegratorParameters MDpar(20);
|
|
IntegratorAlgorithm MDynamics(&Fine,MDpar, FullSet);
|
|
|
|
// Create HMC
|
|
HMCparameters HMCpar;
|
|
HybridMonteCarlo<LatticeGaugeField,IntegratorAlgorithm> HMC(HMCpar, MDynamics, sRNG, pRNG);
|
|
|
|
HMC.evolve(U);
|
|
|
|
}
|