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Grid/lib/qcd/action/fermion/ContinuedFractionFermion5D.h

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Domain wall fermions now invert ; have the basis set up for Tanh/Zolo * (Cayley/PartFrac/ContFrac) * (Mobius/Shamir/Wilson) Approx Representation Kernel. All are done with space-time taking part in checkerboarding, Ls uncheckerboarded Have only so far tested the Domain Wall limit of mobius, and at that only checked that it i) Inverts ii) 5dim DW == Ls copies of 4dim D2 iii) MeeInv Mee == 1 iv) Meo+Mee+Moe+Moo == M unprec. v) MpcDagMpc is hermitan vi) Mdag is the adjoint of M between stochastic vectors. That said, the RB schur solve, RB MpcDagMpc solve, Unprec solve all converge and the true residual becomes small; so pretty good tests.
2015-06-02 16:57:12 +01:00
#ifndef GRID_QCD_CONTINUED_FRACTION_H
#define GRID_QCD_CONTINUED_FRACTION_H
namespace Grid {
namespace QCD {
class ContinuedFractionFermion5D : public WilsonFermion5D
{
public:
// override multiply
virtual RealD M (const LatticeFermion &in, LatticeFermion &out);
virtual RealD Mdag (const LatticeFermion &in, LatticeFermion &out);
// half checkerboard operaions
virtual void Meooe (const LatticeFermion &in, LatticeFermion &out);
virtual void MeooeDag (const LatticeFermion &in, LatticeFermion &out);
virtual void Mooee (const LatticeFermion &in, LatticeFermion &out);
virtual void MooeeDag (const LatticeFermion &in, LatticeFermion &out);
virtual void MooeeInv (const LatticeFermion &in, LatticeFermion &out);
virtual void MooeeInvDag (const LatticeFermion &in, LatticeFermion &out);
First pass at continued fraction; solver and even odd decomposition tests pass. Have to make ContFrac class virtual and derive end non-abstract actions for the particular cases.
2015-06-04 00:00:45 +01:00
// virtual void Instantiatable(void)=0;
Implementing the Hw kernel continued fraction 5d overlap cases
2015-06-04 00:23:16 +01:00
virtual void Instantiatable(void) =0;
First pass at continued fraction; solver and even odd decomposition tests pass. Have to make ContFrac class virtual and derive end non-abstract actions for the particular cases.
2015-06-04 00:00:45 +01:00
Conjugate residual algorithm; some more unary functions
2015-06-08 12:04:59 +01:00
// Efficient support for multigrid coarsening
virtual void Mdir (const LatticeFermion &in, LatticeFermion &out,int dir,int disp);
First pass at continued fraction; solver and even odd decomposition tests pass. Have to make ContFrac class virtual and derive end non-abstract actions for the particular cases.
2015-06-04 00:00:45 +01:00
// Constructors
ContinuedFractionFermion5D(LatticeGaugeField &_Umu,
GridCartesian &FiveDimGrid,
GridRedBlackCartesian &FiveDimRedBlackGrid,
GridCartesian &FourDimGrid,
GridRedBlackCartesian &FourDimRedBlackGrid,
RealD _mass,RealD M5);
protected:
Implementing the Hw kernel continued fraction 5d overlap cases
2015-06-04 00:23:16 +01:00
void SetCoefficientsTanh(Approx::zolotarev_data *zdata,RealD scale);
void SetCoefficientsZolotarev(RealD zolo_hi,Approx::zolotarev_data *zdata);;
Domain wall fermions now invert ; have the basis set up for Tanh/Zolo * (Cayley/PartFrac/ContFrac) * (Mobius/Shamir/Wilson) Approx Representation Kernel. All are done with space-time taking part in checkerboarding, Ls uncheckerboarded Have only so far tested the Domain Wall limit of mobius, and at that only checked that it i) Inverts ii) 5dim DW == Ls copies of 4dim D2 iii) MeeInv Mee == 1 iv) Meo+Mee+Moe+Moo == M unprec. v) MpcDagMpc is hermitan vi) Mdag is the adjoint of M between stochastic vectors. That said, the RB schur solve, RB MpcDagMpc solve, Unprec solve all converge and the true residual becomes small; so pretty good tests.
2015-06-02 16:57:12 +01:00
// Cont frac
PartialFraction Hw with Zolo and Tanh approx converged under CG and passed EO breakdown and hermiticity tests.
2015-06-04 13:28:37 +01:00
RealD dw_diag;
Domain wall fermions now invert ; have the basis set up for Tanh/Zolo * (Cayley/PartFrac/ContFrac) * (Mobius/Shamir/Wilson) Approx Representation Kernel. All are done with space-time taking part in checkerboarding, Ls uncheckerboarded Have only so far tested the Domain Wall limit of mobius, and at that only checked that it i) Inverts ii) 5dim DW == Ls copies of 4dim D2 iii) MeeInv Mee == 1 iv) Meo+Mee+Moe+Moo == M unprec. v) MpcDagMpc is hermitan vi) Mdag is the adjoint of M between stochastic vectors. That said, the RB schur solve, RB MpcDagMpc solve, Unprec solve all converge and the true residual becomes small; so pretty good tests.
2015-06-02 16:57:12 +01:00
RealD mass;
RealD R;
First pass at continued fraction; solver and even odd decomposition tests pass. Have to make ContFrac class virtual and derive end non-abstract actions for the particular cases.
2015-06-04 00:00:45 +01:00
RealD ZoloHiInv;
Domain wall fermions now invert ; have the basis set up for Tanh/Zolo * (Cayley/PartFrac/ContFrac) * (Mobius/Shamir/Wilson) Approx Representation Kernel. All are done with space-time taking part in checkerboarding, Ls uncheckerboarded Have only so far tested the Domain Wall limit of mobius, and at that only checked that it i) Inverts ii) 5dim DW == Ls copies of 4dim D2 iii) MeeInv Mee == 1 iv) Meo+Mee+Moe+Moo == M unprec. v) MpcDagMpc is hermitan vi) Mdag is the adjoint of M between stochastic vectors. That said, the RB schur solve, RB MpcDagMpc solve, Unprec solve all converge and the true residual becomes small; so pretty good tests.
2015-06-02 16:57:12 +01:00
std::vector<double> Beta;
std::vector<double> cc;;
std::vector<double> cc_d;;
std::vector<double> sqrt_cc;
std::vector<double> See;
std::vector<double> Aee;
};
}
}
#endif
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