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0bc004de7c
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.
49 lines
1.9 KiB
C++
49 lines
1.9 KiB
C++
#ifndef GRID_QCD_FERMION_OPERATOR_H
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#define GRID_QCD_FERMION_OPERATOR_H
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namespace Grid {
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namespace QCD {
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//////////////////////////////////////////////////////////////////////////////
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// Four component fermions
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// Should type template the vector and gauge types
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// Think about multiple representations
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//////////////////////////////////////////////////////////////////////////////
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template<class FermionField,class GaugeField>
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class FermionOperator : public CheckerBoardedSparseMatrixBase<FermionField>
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{
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public:
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GridBase * Grid(void) { return FermionGrid(); }; // this is all the linalg routines need to know
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GridBase * RedBlackGrid(void) { return FermionRedBlackGrid(); };
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virtual GridBase *FermionGrid(void) =0;
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virtual GridBase *FermionRedBlackGrid(void) =0;
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virtual GridBase *GaugeGrid(void) =0;
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virtual GridBase *GaugeRedBlackGrid(void) =0;
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// override multiply
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virtual RealD M (const FermionField &in, FermionField &out)=0;
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virtual RealD Mdag (const FermionField &in, FermionField &out)=0;
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// half checkerboard operaions
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virtual void Meooe (const FermionField &in, FermionField &out)=0;
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virtual void MeooeDag (const FermionField &in, FermionField &out)=0;
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virtual void Mooee (const FermionField &in, FermionField &out)=0;
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virtual void MooeeDag (const FermionField &in, FermionField &out)=0;
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virtual void MooeeInv (const FermionField &in, FermionField &out)=0;
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virtual void MooeeInvDag (const FermionField &in, FermionField &out)=0;
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// non-hermitian hopping term; half cb or both
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virtual void Dhop (const FermionField &in, FermionField &out,int dag)=0;
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virtual void DhopOE(const FermionField &in, FermionField &out,int dag)=0;
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virtual void DhopEO(const FermionField &in, FermionField &out,int dag)=0;
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};
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}
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}
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#endif
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