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Grid/tests/Test_rng.cc
Peter Boyle 84b5c7217d CG test written and passes i.e. converges with small true residual
in RedBlack MpcDagMpc, Unprec MdagM and Schur red black solver for
each of.

DomainWallFermion
MobiusFermion
MobiusZolotarevFermion
ScaledShamirFermion
ScaledShamirZolotarevFermion
2015-06-03 10:54:03 +01:00

52 lines
1.4 KiB
C++

#include <Grid.h>
#include <parallelIO/GridNerscIO.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,vComplexF::Nsimd());
std::vector<int> mpi_layout = GridDefaultMpi();
GridCartesian Grid(latt_size,simd_layout,mpi_layout);
std::vector<int> seeds({1,2,3,4});
GridSerialRNG sRNG; sRNG.SeedRandomDevice();
GridSerialRNG fsRNG; fsRNG.SeedFixedIntegers(seeds);
GridParallelRNG pRNG(&Grid); pRNG.SeedRandomDevice();
GridParallelRNG fpRNG(&Grid); fpRNG.SeedFixedIntegers(seeds);
SpinMatrix rnd ;
random(sRNG,rnd);
std::cout<<"Random Spin Matrix (random_device)\n"<< rnd<<std::endl;
random(fsRNG,rnd);
std::cout<<"Random Spin Matrix (fixed seed)\n"<< rnd<<std::endl;
SpinVector rv;
random(sRNG,rv);
std::cout<<"Random Spin Vector (random device)\n"<< rv<<std::endl;
random(fsRNG,rv);
std::cout<<"Random Spin Vector (fixed seed)\n"<< rv<<std::endl;
gaussian(fsRNG,rv);
std::cout<<"Gaussian Spin Vector (fixed seed)\n"<< rv<<std::endl;
LatticeColourVector lcv(&Grid);
random(pRNG,lcv);
std::cout<<"Random Lattice Colour Vector (random device)\n"<< lcv<<std::endl;
random(fpRNG,lcv);
std::cout<<"Random Lattice Colour Vector (fixed seed)\n"<< lcv<<std::endl;
Grid_finalize();
}