mirror of
https://github.com/paboyle/Grid.git
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1b3c93e22a
Allows multi-precision work and paves the way for alternate BC's and such like allowing for example G-parity which is important for K pipi programme. In particular, can drive an extra flavour index into the fermion fields using template types.
202 lines
6.6 KiB
C++
202 lines
6.6 KiB
C++
#include <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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template<class d>
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struct scal {
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d internal;
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};
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Gamma::GammaMatrix Gmu [] = {
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Gamma::GammaX,
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Gamma::GammaY,
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Gamma::GammaZ,
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Gamma::GammaT
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};
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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(Nd,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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GridRedBlackCartesian RBGrid(latt_size,simd_layout,mpi_layout);
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int threads = GridThread::GetThreads();
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std::cout<<GridLogMessage << "Grid is setup to use "<<threads<<" threads"<<std::endl;
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std::vector<int> seeds({1,2,3,4});
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GridParallelRNG pRNG(&Grid);
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// std::vector<int> seeds({1,2,3,4});
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// pRNG.SeedFixedIntegers(seeds);
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pRNG.SeedRandomDevice();
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LatticeFermion src (&Grid); random(pRNG,src);
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LatticeFermion phi (&Grid); random(pRNG,phi);
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LatticeFermion chi (&Grid); random(pRNG,chi);
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LatticeFermion result(&Grid); result=zero;
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LatticeFermion ref(&Grid); ref=zero;
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LatticeFermion tmp(&Grid); tmp=zero;
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LatticeFermion err(&Grid); tmp=zero;
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LatticeGaugeField Umu(&Grid); random(pRNG,Umu);
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std::vector<LatticeColourMatrix> U(4,&Grid);
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double volume=1;
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for(int mu=0;mu<Nd;mu++){
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volume=volume*latt_size[mu];
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}
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// Only one non-zero (y)
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Umu=zero;
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for(int nn=0;nn<Nd;nn++){
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random(pRNG,U[nn]);
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std::cout<<GridLogMessage<<"U[nn]"<<norm2(U[nn])<<std::endl;
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PokeIndex<LorentzIndex>(Umu,U[nn],nn);
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std::cout<<GridLogMessage<<"Umu"<<norm2(Umu)<<std::endl;
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}
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RealD mass=0.1;
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WilsonFermionR Dw(Umu,Grid,RBGrid,mass);
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LatticeFermion src_e (&RBGrid);
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LatticeFermion src_o (&RBGrid);
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LatticeFermion r_e (&RBGrid);
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LatticeFermion r_o (&RBGrid);
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LatticeFermion r_eo (&Grid);
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std::cout<<GridLogMessage<<"=========================================================="<<std::endl;
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std::cout<<GridLogMessage<<"= Testing that Deo + Doe = Dunprec "<<std::endl;
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std::cout<<GridLogMessage<<"=========================================================="<<std::endl;
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pickCheckerboard(Even,src_e,src);
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pickCheckerboard(Odd,src_o,src);
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Dw.Meooe(src_e,r_o); std::cout<<GridLogMessage<<"Applied Meo"<<std::endl;
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Dw.Meooe(src_o,r_e); std::cout<<GridLogMessage<<"Applied Moe"<<std::endl;
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Dw.Dhop (src,ref,DaggerNo);
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setCheckerboard(r_eo,r_o);
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setCheckerboard(r_eo,r_e);
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err= ref - r_eo;
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std::cout<<GridLogMessage << "EO norm diff "<< norm2(err)<< " "<<norm2(ref)<< " " << norm2(r_eo) <<std::endl;
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LatticeComplex cerr(&Grid);
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cerr = localInnerProduct(err,err);
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std::cout<<GridLogMessage<<"=============================================================="<<std::endl;
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std::cout<<GridLogMessage<<"= Test Ddagger is the dagger of D by requiring "<<std::endl;
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std::cout<<GridLogMessage<<"= < phi | Deo | chi > * = < chi | Deo^dag| phi> "<<std::endl;
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std::cout<<GridLogMessage<<"=============================================================="<<std::endl;
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LatticeFermion chi_e (&RBGrid);
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LatticeFermion chi_o (&RBGrid);
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LatticeFermion dchi_e (&RBGrid);
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LatticeFermion dchi_o (&RBGrid);
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LatticeFermion phi_e (&RBGrid);
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LatticeFermion phi_o (&RBGrid);
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LatticeFermion dphi_e (&RBGrid);
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LatticeFermion dphi_o (&RBGrid);
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pickCheckerboard(Even,chi_e,chi);
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pickCheckerboard(Odd ,chi_o,chi);
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pickCheckerboard(Even,phi_e,phi);
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pickCheckerboard(Odd ,phi_o,phi);
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Dw.Meooe(chi_e,dchi_o);
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Dw.Meooe(chi_o,dchi_e);
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Dw.MeooeDag(phi_e,dphi_o);
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Dw.MeooeDag(phi_o,dphi_e);
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ComplexD pDce = innerProduct(phi_e,dchi_e);
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ComplexD pDco = innerProduct(phi_o,dchi_o);
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ComplexD cDpe = innerProduct(chi_e,dphi_e);
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ComplexD cDpo = innerProduct(chi_o,dphi_o);
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std::cout<<GridLogMessage <<"e "<<pDce<<" "<<cDpe <<std::endl;
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std::cout<<GridLogMessage <<"o "<<pDco<<" "<<cDpo <<std::endl;
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std::cout<<GridLogMessage <<"pDce - conj(cDpo) "<< pDce-conj(cDpo) <<std::endl;
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std::cout<<GridLogMessage <<"pDco - conj(cDpe) "<< pDco-conj(cDpe) <<std::endl;
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std::cout<<GridLogMessage<<"=============================================================="<<std::endl;
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std::cout<<GridLogMessage<<"= Test MeeInv Mee = 1 "<<std::endl;
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std::cout<<GridLogMessage<<"=============================================================="<<std::endl;
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pickCheckerboard(Even,chi_e,chi);
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pickCheckerboard(Odd ,chi_o,chi);
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Dw.Mooee(chi_e,src_e);
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Dw.MooeeInv(src_e,phi_e);
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Dw.Mooee(chi_o,src_o);
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Dw.MooeeInv(src_o,phi_o);
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setCheckerboard(phi,phi_e);
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setCheckerboard(phi,phi_o);
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err = phi-chi;
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std::cout<<GridLogMessage << "norm diff "<< norm2(err)<< std::endl;
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std::cout<<GridLogMessage<<"=============================================================="<<std::endl;
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std::cout<<GridLogMessage<<"= Test MeeInvDag MeeDag = 1 "<<std::endl;
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std::cout<<GridLogMessage<<"=============================================================="<<std::endl;
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pickCheckerboard(Even,chi_e,chi);
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pickCheckerboard(Odd ,chi_o,chi);
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Dw.MooeeDag(chi_e,src_e);
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Dw.MooeeInvDag(src_e,phi_e);
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Dw.MooeeDag(chi_o,src_o);
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Dw.MooeeInvDag(src_o,phi_o);
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setCheckerboard(phi,phi_e);
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setCheckerboard(phi,phi_o);
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err = phi-chi;
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std::cout<<GridLogMessage << "norm diff "<< norm2(err)<< std::endl;
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std::cout<<GridLogMessage<<"=============================================================="<<std::endl;
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std::cout<<GridLogMessage<<"= Test MpcDagMpc is Hermitian "<<std::endl;
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std::cout<<GridLogMessage<<"=============================================================="<<std::endl;
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random(pRNG,phi);
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random(pRNG,chi);
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pickCheckerboard(Even,chi_e,chi);
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pickCheckerboard(Odd ,chi_o,chi);
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pickCheckerboard(Even,phi_e,phi);
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pickCheckerboard(Odd ,phi_o,phi);
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RealD t1,t2;
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SchurDiagMooeeOperator<WilsonFermionR,LatticeFermion> HermOpEO(Dw);
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HermOpEO.MpcDagMpc(chi_e,dchi_e,t1,t2);
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HermOpEO.MpcDagMpc(chi_o,dchi_o,t1,t2);
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HermOpEO.MpcDagMpc(phi_e,dphi_e,t1,t2);
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HermOpEO.MpcDagMpc(phi_o,dphi_o,t1,t2);
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pDce = innerProduct(phi_e,dchi_e);
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pDco = innerProduct(phi_o,dchi_o);
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cDpe = innerProduct(chi_e,dphi_e);
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cDpo = innerProduct(chi_o,dphi_o);
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std::cout<<GridLogMessage <<"e "<<pDce<<" "<<cDpe <<std::endl;
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std::cout<<GridLogMessage <<"o "<<pDco<<" "<<cDpo <<std::endl;
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std::cout<<GridLogMessage <<"pDce - conj(cDpo) "<< pDco-conj(cDpo) <<std::endl;
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std::cout<<GridLogMessage <<"pDco - conj(cDpe) "<< pDce-conj(cDpe) <<std::endl;
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Grid_finalize();
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}
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