mirror of
https://github.com/paboyle/Grid.git
synced 2024-11-14 09:45:36 +00:00
128 lines
4.1 KiB
C++
128 lines
4.1 KiB
C++
/*************************************************************************************
|
|
|
|
Grid physics library, www.github.com/paboyle/Grid
|
|
|
|
Source file: ./tests/Test_dwf_cg_prec.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;
|
|
;
|
|
|
|
template <class d>
|
|
struct scal {
|
|
d internal;
|
|
};
|
|
|
|
Gamma::Algebra Gmu[] = {Gamma::Algebra::GammaX, Gamma::Algebra::GammaY, Gamma::Algebra::GammaZ,
|
|
Gamma::Algebra::GammaT};
|
|
|
|
int main(int argc, char** argv) {
|
|
Grid_init(&argc, &argv);
|
|
|
|
const int Ls = 10;
|
|
|
|
GridCartesian* UGrid = SpaceTimeGrid::makeFourDimGrid(
|
|
GridDefaultLatt(), GridDefaultSimd(Nd, vComplex::Nsimd()),
|
|
GridDefaultMpi());
|
|
GridRedBlackCartesian* UrbGrid =
|
|
SpaceTimeGrid::makeFourDimRedBlackGrid(UGrid);
|
|
GridCartesian* FGrid = SpaceTimeGrid::makeFiveDimGrid(Ls, UGrid);
|
|
GridRedBlackCartesian* FrbGrid =
|
|
SpaceTimeGrid::makeFiveDimRedBlackGrid(Ls, UGrid);
|
|
|
|
std::vector<int> seeds4({1, 2, 3, 4});
|
|
std::vector<int> seeds5({5, 6, 7, 8});
|
|
GridParallelRNG RNG5(FGrid);
|
|
RNG5.SeedFixedIntegers(seeds5);
|
|
GridParallelRNG RNG4(UGrid);
|
|
RNG4.SeedFixedIntegers(seeds4);
|
|
|
|
LatticeFermion src(FGrid);
|
|
random(RNG5, src);
|
|
LatticeFermion result(FGrid);
|
|
result = Zero();
|
|
LatticeGaugeField Umu(UGrid);
|
|
|
|
SU<Nc>::HotConfiguration(RNG4, Umu);
|
|
|
|
std::cout << GridLogMessage << "Lattice dimensions: " << GridDefaultLatt()
|
|
<< " Ls: " << Ls << std::endl;
|
|
|
|
std::vector<LatticeColourMatrix> U(4, UGrid);
|
|
for (int mu = 0; mu < Nd; mu++) {
|
|
U[mu] = PeekIndex<LorentzIndex>(Umu, mu);
|
|
}
|
|
|
|
RealD mass = 0.01;
|
|
RealD M5 = 1.8;
|
|
std::vector < ComplexD > omegas;
|
|
#if 0
|
|
for(int i=0;i<Ls;i++){
|
|
double imag = 0.;
|
|
if (i==0) imag=1.;
|
|
if (i==Ls-1) imag=-1.;
|
|
std::complex<double> temp (0.25+0.01*i, imag*0.01);
|
|
omegas.push_back(temp);
|
|
}
|
|
#else
|
|
omegas.push_back( std::complex<double>(1.45806438985048,-0) );
|
|
omegas.push_back( std::complex<double>(1.18231318389348,-0) );
|
|
omegas.push_back( std::complex<double>(0.830951166685955,-0) );
|
|
omegas.push_back( std::complex<double>(0.542352409156791,-0) );
|
|
omegas.push_back( std::complex<double>(0.341985020453729,-0) );
|
|
omegas.push_back( std::complex<double>(0.21137902619029,-0) );
|
|
omegas.push_back( std::complex<double>(0.126074299502912,-0) );
|
|
omegas.push_back( std::complex<double>(0.0990136651962626,-0) );
|
|
omegas.push_back( std::complex<double>(0.0686324988446592,0.0550658530827402) );
|
|
omegas.push_back( std::complex<double>(0.0686324988446592,-0.0550658530827402) );
|
|
#endif
|
|
|
|
ZMobiusFermionR Ddwf(Umu, *FGrid, *FrbGrid, *UGrid, *UrbGrid, mass, M5, omegas,1.,0.);
|
|
|
|
LatticeFermion src_o(FrbGrid);
|
|
LatticeFermion result_o(FrbGrid);
|
|
pickCheckerboard(Odd, src_o, src);
|
|
result_o = Zero();
|
|
|
|
GridStopWatch CGTimer;
|
|
|
|
SchurDiagMooeeOperator<ZMobiusFermionR, LatticeFermion> HermOpEO(Ddwf);
|
|
ConjugateGradient<LatticeFermion> CG(1.0e-8, 10000, 0);// switch off the assert
|
|
|
|
CGTimer.Start();
|
|
CG(HermOpEO, src_o, result_o);
|
|
CGTimer.Stop();
|
|
|
|
std::cout << GridLogMessage << "Total CG time : " << CGTimer.Elapsed()
|
|
<< std::endl;
|
|
|
|
std::cout << GridLogMessage << "######## Dhop calls summary" << std::endl;
|
|
Ddwf.Report();
|
|
|
|
Grid_finalize();
|
|
}
|