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Schur for staggered

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This commit is contained in:
Azusa Yamaguchi
2017-10-10 12:02:18 +01:00
parent f0e084a88c
commit bb7378cfc3
3 changed files with 135 additions and 81 deletions
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80
lib/algorithms/LinearOperator.h
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@@ -162,15 +162,10 @@ namespace Grid {
_Mat.M(in,out);
}
void HermOpAndNorm(const Field &in, Field &out,RealD &n1,RealD &n2){
ComplexD dot;
_Mat.M(in,out);
dot= innerProduct(in,out);
n1=real(dot);
dot = innerProduct(out,out);
n2=real(dot);
ComplexD dot= innerProduct(in,out); n1=real(dot);
n2=norm2(out);
}
void HermOp(const Field &in, Field &out){
_Mat.M(in,out);
@@ -309,9 +304,9 @@ namespace Grid {
SchurStaggeredOperator (Matrix &Mat): _Mat(Mat){};
virtual void HermOpAndNorm(const Field &in, Field &out,RealD &n1,RealD &n2){
ComplexD dot;
n2=Mpc(in,out);
n2 = Mpc(in,out);
dot= innerProduct(in,out);
n1= real(dot);
n1 = real(dot);
}
virtual void HermOp(const Field &in, Field &out){
Mpc(in,out);
@@ -333,73 +328,6 @@ namespace Grid {
};
template<class Matrix,class Field> using SchurStagOperator = SchurStaggeredOperator<Matrix,Field>;
// This is specific to (Z)mobius fermions
template<class Matrix, class Field>
class KappaSimilarityTransform {
public:
typedef typename Matrix::Coeff_t Coeff_t;
std::vector<Coeff_t> kappa, kappaDag, kappaInv, kappaInvDag;
KappaSimilarityTransform (Matrix &zmob) {
for (int i=0;i<(int)zmob.bs.size();i++) {
Coeff_t k = 1.0 / ( 2.0 * (zmob.bs[i] *(4 - zmob.M5) + 1.0) );
kappa.push_back( k );
kappaDag.push_back( conj(k) );
kappaInv.push_back( 1.0 / k );
kappaInvDag.push_back( 1.0 / conj(k) );
}
}
template<typename vobj>
void sscale(const Lattice<vobj>& in, Lattice<vobj>& out, Coeff_t* s) {
GridBase *grid=out._grid;
out.checkerboard = in.checkerboard;
assert(grid->_simd_layout[0] == 1); // should be fine for ZMobius for now
int Ls = grid->_rdimensions[0];
parallel_for(int ss=0;ss<grid->oSites();ss++){
vobj tmp = s[ss % Ls]*in._odata[ss];
vstream(out._odata[ss],tmp);
}
}
RealD sscale_norm(const Field& in, Field& out, Coeff_t* s) {
sscale(in,out,s);
return norm2(out);
}
virtual RealD M (const Field& in, Field& out) { return sscale_norm(in,out,&kappa[0]); }
virtual RealD MDag (const Field& in, Field& out) { return sscale_norm(in,out,&kappaDag[0]);}
virtual RealD MInv (const Field& in, Field& out) { return sscale_norm(in,out,&kappaInv[0]);}
virtual RealD MInvDag (const Field& in, Field& out) { return sscale_norm(in,out,&kappaInvDag[0]);}
};
template<class Matrix,class Field>
class SchurDiagTwoKappaOperator : public SchurOperatorBase<Field> {
public:
KappaSimilarityTransform<Matrix, Field> _S;
SchurDiagTwoOperator<Matrix, Field> _Mat;
SchurDiagTwoKappaOperator (Matrix &Mat): _S(Mat), _Mat(Mat) {};
virtual RealD Mpc (const Field &in, Field &out) {
Field tmp(in._grid);
_S.MInv(in,out);
_Mat.Mpc(out,tmp);
return _S.M(tmp,out);
}
virtual RealD MpcDag (const Field &in, Field &out){
Field tmp(in._grid);
_S.MDag(in,out);
_Mat.MpcDag(out,tmp);
return _S.MInvDag(tmp,out);
}
};
/////////////////////////////////////////////////////////////
// Base classes for functions of operators