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Even Odd two flavour ratio added and dH == small

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Peter Boyle
2015-08-18 10:37:08 +01:00
parent 8621e2409f
commit 9306921ded
8 changed files with 356 additions and 121 deletions
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112
lib/qcd/action/pseudofermion/EvenOddSchurDifferentiable.h Normal file
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#ifndef QCD_EVEN_ODD_SCHUR_DIFFERENTIABLE_H
#define QCD_EVEN_ODD_SCHUR_DIFFERENTIABLE_H
namespace Grid{
namespace QCD{
// Base even odd HMC on the normal Mee based schur decomposition.
//
// M = (Mee Meo) = (1 0 ) (Mee 0 ) (1 Mee^{-1} Meo)
// (Moe Moo) (Moe Mee^-1 1 ) (0 Moo-Moe Mee^-1 Meo) (0 1 )
//
// Determinant is det of middle factor
// This assumes Mee is indept of U.
//
template<class Impl>
class SchurDifferentiableOperator : public SchurDiagMooeeOperator<FermionOperator<Impl>,typename Impl::FermionField>
{
public:
INHERIT_IMPL_TYPES(Impl);
typedef FermionOperator<Impl> Matrix;
SchurDifferentiableOperator (Matrix &Mat) : SchurDiagMooeeOperator<Matrix,FermionField>(Mat) {};
void MpcDeriv(GaugeField &Force,const FermionField &U,const FermionField &V) {
GridBase *fgrid = this->_Mat.FermionGrid();
GridBase *fcbgrid = this->_Mat.FermionRedBlackGrid();
GridBase *ugrid = this->_Mat.GaugeGrid();
GridBase *ucbgrid = this->_Mat.GaugeRedBlackGrid();
Real coeff = 1.0;
FermionField tmp1(fcbgrid);
FermionField tmp2(fcbgrid);
conformable(fcbgrid,U._grid);
conformable(fcbgrid,V._grid);
// Assert the checkerboard?? or code for either
assert(U.checkerboard==Odd);
assert(V.checkerboard==U.checkerboard);
GaugeField ForceO(ucbgrid);
GaugeField ForceE(ucbgrid);
// X^dag Der_oe MeeInv Meo Y
// Use Mooee as nontrivial but gauge field indept
this->_Mat.Meooe (V,tmp1); // odd->even -- implicit -0.5 factor to be applied
this->_Mat.MooeeInv(tmp1,tmp2); // even->even
this->_Mat.MoeDeriv(ForceO,U,tmp2,DaggerNo);
// Accumulate X^dag M_oe MeeInv Der_eo Y
this->_Mat.MeooeDag (U,tmp1); // even->odd -- implicit -0.5 factor to be applied
this->_Mat.MooeeInvDag(tmp1,tmp2); // even->even
this->_Mat.MeoDeriv(ForceE,tmp2,V,DaggerNo);
assert(ForceE.checkerboard==Even);
assert(ForceO.checkerboard==Odd);
setCheckerboard(Force,ForceE);
setCheckerboard(Force,ForceO);
Force=-Force;
}
void MpcDagDeriv(GaugeField &Force,const FermionField &U,const FermionField &V) {
GridBase *fgrid = this->_Mat.FermionGrid();
GridBase *fcbgrid = this->_Mat.FermionRedBlackGrid();
GridBase *ugrid = this->_Mat.GaugeGrid();
GridBase *ucbgrid = this->_Mat.GaugeRedBlackGrid();
Real coeff = 1.0;
FermionField tmp1(fcbgrid);
FermionField tmp2(fcbgrid);
conformable(fcbgrid,U._grid);
conformable(fcbgrid,V._grid);
// Assert the checkerboard?? or code for either
assert(V.checkerboard==Odd);
assert(V.checkerboard==V.checkerboard);
GaugeField ForceO(ucbgrid);
GaugeField ForceE(ucbgrid);
// X^dag Der_oe MeeInv Meo Y
// Use Mooee as nontrivial but gauge field indept
this->_Mat.MeooeDag (V,tmp1); // odd->even -- implicit -0.5 factor to be applied
this->_Mat.MooeeInvDag(tmp1,tmp2); // even->even
this->_Mat.MoeDeriv(ForceO,U,tmp2,DaggerYes);
// Accumulate X^dag M_oe MeeInv Der_eo Y
this->_Mat.Meooe (U,tmp1); // even->odd -- implicit -0.5 factor to be applied
this->_Mat.MooeeInv(tmp1,tmp2); // even->even
this->_Mat.MeoDeriv(ForceE,tmp2,V,DaggerYes);
assert(ForceE.checkerboard==Even);
assert(ForceO.checkerboard==Odd);
setCheckerboard(Force,ForceE);
setCheckerboard(Force,ForceO);
Force=-Force;
}
};
}
}
#endif