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128 lines
4.1 KiB
C++
128 lines
4.1 KiB
C++
/*************************************************************************************
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Grid physics library, www.github.com/paboyle/Grid
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Source file: ./tests/Test_dwf_cg_prec.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
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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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;
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template <class d>
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struct scal {
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d internal;
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};
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Gamma::Algebra Gmu[] = {Gamma::Algebra::GammaX, Gamma::Algebra::GammaY, Gamma::Algebra::GammaZ,
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Gamma::Algebra::GammaT};
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int main(int argc, char** argv) {
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Grid_init(&argc, &argv);
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const int Ls = 10;
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GridCartesian* UGrid = SpaceTimeGrid::makeFourDimGrid(
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GridDefaultLatt(), GridDefaultSimd(Nd, vComplex::Nsimd()),
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GridDefaultMpi());
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GridRedBlackCartesian* UrbGrid =
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SpaceTimeGrid::makeFourDimRedBlackGrid(UGrid);
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GridCartesian* FGrid = SpaceTimeGrid::makeFiveDimGrid(Ls, UGrid);
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GridRedBlackCartesian* FrbGrid =
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SpaceTimeGrid::makeFiveDimRedBlackGrid(Ls, UGrid);
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std::vector<int> seeds4({1, 2, 3, 4});
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std::vector<int> seeds5({5, 6, 7, 8});
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GridParallelRNG RNG5(FGrid);
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RNG5.SeedFixedIntegers(seeds5);
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GridParallelRNG RNG4(UGrid);
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RNG4.SeedFixedIntegers(seeds4);
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LatticeFermion src(FGrid);
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random(RNG5, src);
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LatticeFermion result(FGrid);
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result = Zero();
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LatticeGaugeField Umu(UGrid);
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SU3::HotConfiguration(RNG4, Umu);
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std::cout << GridLogMessage << "Lattice dimensions: " << GridDefaultLatt()
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<< " Ls: " << Ls << std::endl;
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std::vector<LatticeColourMatrix> U(4, UGrid);
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for (int mu = 0; mu < Nd; mu++) {
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U[mu] = PeekIndex<LorentzIndex>(Umu, mu);
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}
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RealD mass = 0.01;
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RealD M5 = 1.8;
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std::vector < ComplexD > omegas;
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#if 0
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for(int i=0;i<Ls;i++){
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double imag = 0.;
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if (i==0) imag=1.;
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if (i==Ls-1) imag=-1.;
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std::complex<double> temp (0.25+0.01*i, imag*0.01);
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omegas.push_back(temp);
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}
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#else
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omegas.push_back( std::complex<double>(1.45806438985048,-0) );
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omegas.push_back( std::complex<double>(1.18231318389348,-0) );
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omegas.push_back( std::complex<double>(0.830951166685955,-0) );
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omegas.push_back( std::complex<double>(0.542352409156791,-0) );
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omegas.push_back( std::complex<double>(0.341985020453729,-0) );
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omegas.push_back( std::complex<double>(0.21137902619029,-0) );
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omegas.push_back( std::complex<double>(0.126074299502912,-0) );
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omegas.push_back( std::complex<double>(0.0990136651962626,-0) );
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omegas.push_back( std::complex<double>(0.0686324988446592,0.0550658530827402) );
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omegas.push_back( std::complex<double>(0.0686324988446592,-0.0550658530827402) );
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#endif
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ZMobiusFermionR Ddwf(Umu, *FGrid, *FrbGrid, *UGrid, *UrbGrid, mass, M5, omegas,1.,0.);
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LatticeFermion src_o(FrbGrid);
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LatticeFermion result_o(FrbGrid);
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pickCheckerboard(Odd, src_o, src);
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result_o = Zero();
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GridStopWatch CGTimer;
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SchurDiagMooeeOperator<ZMobiusFermionR, LatticeFermion> HermOpEO(Ddwf);
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ConjugateGradient<LatticeFermion> CG(1.0e-8, 10000, 0);// switch off the assert
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CGTimer.Start();
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CG(HermOpEO, src_o, result_o);
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CGTimer.Stop();
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std::cout << GridLogMessage << "Total CG time : " << CGTimer.Elapsed()
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<< std::endl;
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std::cout << GridLogMessage << "######## Dhop calls summary" << std::endl;
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Ddwf.Report();
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Grid_finalize();
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}
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