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https://github.com/paboyle/Grid.git
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52 lines
1.5 KiB
C++
52 lines
1.5 KiB
C++
#include <Grid.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_size = GridDefaultLatt();
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std::vector<int> simd_layout = GridDefaultSimd(4,vComplexF::Nsimd());
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std::vector<int> mpi_layout = GridDefaultMpi();
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GridCartesian Grid(latt_size,simd_layout,mpi_layout);
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std::vector<int> seeds({1,2,3,4});
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GridSerialRNG fsRNG; fsRNG.SeedFixedIntegers(seeds);
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GridParallelRNG fpRNG(&Grid); fpRNG.SeedFixedIntegers(seeds);
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vComplexF tmp; random(fsRNG,tmp);
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std::cout<<"Random vComplexF (fixed seed)\n"<< tmp<<std::endl;
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std::cout<<"conjugate(tmp)\n"<< conjugate(tmp)<<std::endl;
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std::cout<<"conjugate(tmp)*tmp\n"<< conjugate(tmp)*tmp<<std::endl;
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std::cout<<"innerProduct"<< innerProduct(tmp,tmp)<<std::endl;
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std::cout<<"Reduce(innerProduct)"<< Reduce(innerProduct(tmp,tmp))<<std::endl;
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SpinMatrix rnd ;
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random(fsRNG,rnd);
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std::cout<<"Random Spin Matrix (fixed seed)\n"<< rnd<<std::endl;
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SpinVector rv;
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random(fsRNG,rv);
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std::cout<<"Random Spin Vector (fixed seed)\n"<< rv<<std::endl;
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gaussian(fsRNG,rv);
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std::cout<<"Gaussian Spin Vector (fixed seed)\n"<< rv<<std::endl;
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LatticeColourVector lcv(&Grid);
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LatticeFermion src(&Grid); random(fpRNG,src);
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std::cout << "src norm : " << norm2(src)<<std::endl;
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std::cout << "src " << src<<std::endl;
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random(fpRNG,lcv);
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std::cout<<"Random Lattice Colour Vector (fixed seed)\n"<< lcv<<std::endl;
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Grid_finalize();
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}
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