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Grid/tests/core/Test_rng_fixed.cc

79 lines
2.8 KiB
C++

/*************************************************************************************
Grid physics library, www.github.com/paboyle/Grid
Source file: ./tests/Test_rng_fixed.cc
Copyright (C) 2015
Author: Peter Boyle <paboyle@ph.ed.ac.uk>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
See the full license in the file "LICENSE" in the top level distribution directory
*************************************************************************************/
/* END LEGAL */
#include <Grid/Grid.h>
using namespace std;
using namespace Grid;
;
int main (int argc, char ** argv)
{
Grid_init(&argc,&argv);
Coordinate latt_size = GridDefaultLatt();
Coordinate simd_layout = GridDefaultSimd(4,vComplex::Nsimd());
Coordinate 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();
}