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https://github.com/paboyle/Grid.git
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95 lines
2.7 KiB
C++
95 lines
2.7 KiB
C++
#include <Grid.h>
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#include <qcd/utils/CovariantCshift.h>
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#include <qcd/utils/WilsonLoops.h>
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#include <qcd/utils/SUn.h>
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using namespace std;
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using namespace Grid;
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using namespace Grid::QCD;
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int main (int argc, char ** argv)
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{
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Grid_init(&argc,&argv);
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std::vector<int> latt({4,4,4,8});
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GridCartesian * grid = SpaceTimeGrid::makeFourDimGrid(latt,
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GridDefaultSimd(Nd,vComplexF::Nsimd()),
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GridDefaultMpi());
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GridRedBlackCartesian * rbGrid = SpaceTimeGrid::makeFourDimRedBlackGrid(grid);
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std::cout<<"*********************************************"<<std::endl;
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std::cout<<"* Generators for SU(2)"<<std::endl;
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std::cout<<"*********************************************"<<std::endl;
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SU2::printGenerators();
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SU2::testGenerators();
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std::cout<<"*********************************************"<<std::endl;
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std::cout<<"* Generators for SU(3)"<<std::endl;
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std::cout<<"*********************************************"<<std::endl;
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SU3::printGenerators();
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SU3::testGenerators();
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// std::cout<<"*********************************************"<<std::endl;
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// std::cout<<"* Generators for SU(4)"<<std::endl;
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// std::cout<<"*********************************************"<<std::endl;
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// SU4::printGenerators();
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// SU4::testGenerators();
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// std::cout<<"*********************************************"<<std::endl;
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// std::cout<<"* Generators for SU(5)"<<std::endl;
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// std::cout<<"*********************************************"<<std::endl;
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// SU5::printGenerators();
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// SU5::testGenerators();
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///////////////////////////////
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// Configuration of known size
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///////////////////////////////
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NerscField header;
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std::string file("./ckpoint_lat.400");
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LatticeGaugeField Umu(grid);
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// readNerscConfiguration(Umu,header,file);
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Umu=1.0; // Cold start
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// RNG set up for test
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std::vector<int> pseeds({1,2,3,4,5}); // once I caught a fish alive
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std::vector<int> sseeds({6,7,8,9,10});// then i let it go again
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GridParallelRNG pRNG(grid); pRNG.SeedFixedIntegers(pseeds);
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GridSerialRNG sRNG; sRNG.SeedFixedIntegers(sseeds);
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// SU3 colour operatoions
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LatticeColourMatrix link(grid);
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LatticeColourMatrix staple(grid);
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int mu=0;
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// Get Staple
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ColourWilsonLoops::Staple(staple,Umu,mu);
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// Get Link
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link = peekIndex<LorentzIndex>(Umu,mu);
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// Apply heatbath to the link
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RealD beta=6.0;
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int subgroup=0;
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int nhb=1;
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int trials=0;
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int fails=0;
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LatticeInteger one(rbGrid); one = 1; // fill with ones
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LatticeInteger mask(grid); mask= zero;
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one.checkerboard=Even;
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setCheckerboard(mask,one);
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// update Even checkerboard
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SU3::SubGroupHeatBath(sRNG,pRNG,beta,link,staple,subgroup,
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nhb,trials,fails,mask);
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Grid_finalize();
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}
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