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78 lines
2.7 KiB
C++
78 lines
2.7 KiB
C++
/*************************************************************************************
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Grid physics library, www.github.com/paboyle/Grid
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Source file: ./tests/Test_rng.cc
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Copyright (C) 2015
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Author: Peter Boyle <paboyle@ph.ed.ac.uk>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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See the full license in the file "LICENSE" in the top level distribution directory
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*************************************************************************************/
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/* END LEGAL */
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#include <Grid/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,vComplex::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 sRNG; sRNG.SeedFixedIntegers(std::vector<int>({45,12,81,9}));
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GridSerialRNG fsRNG; fsRNG.SeedFixedIntegers(seeds);
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GridParallelRNG pRNG(&Grid); pRNG.SeedFixedIntegers(std::vector<int>({45,12,81,9}));
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GridParallelRNG fpRNG(&Grid); fpRNG.SeedFixedIntegers(seeds);
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SpinMatrix rnd ;
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random(sRNG,rnd);
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std::cout<<GridLogMessage<<"Random Spin Matrix (random_device)\n"<< rnd<<std::endl;
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random(fsRNG,rnd);
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std::cout<<GridLogMessage<<"Random Spin Matrix (fixed seed)\n"<< rnd<<std::endl;
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SpinVector rv;
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random(sRNG,rv);
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std::cout<<GridLogMessage<<"Random Spin Vector (random device)\n"<< rv<<std::endl;
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random(fsRNG,rv);
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std::cout<<GridLogMessage<<"Random Spin Vector (fixed seed)\n"<< rv<<std::endl;
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gaussian(fsRNG,rv);
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std::cout<<GridLogMessage<<"Gaussian Spin Vector (fixed seed)\n"<< rv<<std::endl;
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LatticeColourVector lcv(&Grid);
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random(pRNG,lcv);
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std::cout<<GridLogMessage<<"Random Lattice Colour Vector (random device)\n"<< lcv<<std::endl;
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random(fpRNG,lcv);
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std::cout<<GridLogMessage<<"Random Lattice Colour Vector (fixed seed)\n"<< lcv<<std::endl;
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Grid_finalize();
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}
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