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Grid/tests/Test_rng_fixed.cc
Peter Boyle 5e370db6c5 Sizable improvement in multigrid for unsquared.
6000 matmuls CG unprec
2000 matmuls CG prec (4000 eo muls)
1050 matmuls PGCR on 16^3 x 32 x 8 m=.01

Substantial effort on timing and logging infrastructure
2015-07-24 01:31:13 +09:00

52 lines
1.7 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();
GridCartesian Grid(latt_size,simd_layout,mpi_layout);
std::vector<int> seeds({1,2,3,4});
GridSerialRNG fsRNG; fsRNG.SeedFixedIntegers(seeds);
GridParallelRNG fpRNG(&Grid); fpRNG.SeedFixedIntegers(seeds);
vComplexF tmp; random(fsRNG,tmp);
std::cout<<GridLogMessage<<"Random vComplexF (fixed seed)\n"<< tmp<<std::endl;
std::cout<<GridLogMessage<<"conjugate(tmp)\n"<< conjugate(tmp)<<std::endl;
std::cout<<GridLogMessage<<"conjugate(tmp)*tmp\n"<< conjugate(tmp)*tmp<<std::endl;
std::cout<<GridLogMessage<<"innerProduct"<< innerProduct(tmp,tmp)<<std::endl;
std::cout<<GridLogMessage<<"Reduce(innerProduct)"<< Reduce(innerProduct(tmp,tmp))<<std::endl;
SpinMatrix rnd ;
random(fsRNG,rnd);
std::cout<<GridLogMessage<<"Random Spin Matrix (fixed seed)\n"<< rnd<<std::endl;
SpinVector rv;
random(fsRNG,rv);
std::cout<<GridLogMessage<<"Random Spin Vector (fixed seed)\n"<< rv<<std::endl;
gaussian(fsRNG,rv);
std::cout<<GridLogMessage<<"Gaussian Spin Vector (fixed seed)\n"<< rv<<std::endl;
LatticeColourVector lcv(&Grid);
LatticeFermion src(&Grid); random(fpRNG,src);
std::cout<<GridLogMessage << "src norm : " << norm2(src)<<std::endl;
std::cout<<GridLogMessage << "src " << src<<std::endl;
random(fpRNG,lcv);
std::cout<<GridLogMessage<<"Random Lattice Colour Vector (fixed seed)\n"<< lcv<<std::endl;
Grid_finalize();
}