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ALl codes compile against the new Lanczos call signature

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This commit is contained in:
paboyle
2017-10-13 14:02:43 +01:00
parent 47af3565f4
commit e325929851
7 changed files with 82 additions and 78 deletions
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59
lib/algorithms/LinearOperator.h
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@ -346,6 +346,7 @@ namespace Grid {
virtual void operator() (const Field &in, Field &out) = 0;
};
/////////////////////////////////////////////////////////////
// Base classes for Multishift solvers for operators
/////////////////////////////////////////////////////////////
@ -368,6 +369,64 @@ namespace Grid {
};
*/
////////////////////////////////////////////////////////////////////////////////////////////
// Hermitian operator Linear function and operator function
////////////////////////////////////////////////////////////////////////////////////////////
template<class Field>
class HermOpOperatorFunction : public OperatorFunction<Field> {
void operator() (LinearOperatorBase<Field> &Linop, const Field &in, Field &out) {
Linop.HermOp(in,out);
};
};
template<typename Field>
class PlainHermOp : public LinearFunction<Field> {
public:
LinearOperatorBase<Field> &_Linop;
PlainHermOp(LinearOperatorBase<Field>& linop) : _Linop(linop)
{}
void operator()(const Field& in, Field& out) {
_Linop.HermOp(in,out);
}
};
template<typename Field>
class FunctionHermOp : public LinearFunction<Field> {
public:
OperatorFunction<Field> & _poly;
LinearOperatorBase<Field> &_Linop;
FunctionHermOp(OperatorFunction<Field> & poly,LinearOperatorBase<Field>& linop)
: _poly(poly), _Linop(linop) {};
void operator()(const Field& in, Field& out) {
_poly(_Linop,in,out);
}
};
template<class Field>
class Polynomial : public OperatorFunction<Field> {
private:
std::vector<RealD> Coeffs;
public:
Polynomial(std::vector<RealD> &_Coeffs) : Coeffs(_Coeffs) { };
// Implement the required interface
void operator() (LinearOperatorBase<Field> &Linop, const Field &in, Field &out) {
Field AtoN(in._grid);
Field Mtmp(in._grid);
AtoN = in;
out = AtoN*Coeffs[0];
for(int n=1;n<Coeffs.size();n++){
Mtmp = AtoN;
Linop.HermOp(Mtmp,AtoN);
out=out+AtoN*Coeffs[n];
}
};
};
}

35
lib/algorithms/approx/Chebyshev.h
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@ -34,41 +34,6 @@ Author: Christoph Lehner <clehner@bnl.gov>
namespace Grid {
////////////////////////////////////////////////////////////////////////////////////////////
// Simple general polynomial with user supplied coefficients
////////////////////////////////////////////////////////////////////////////////////////////
template<class Field>
class HermOpOperatorFunction : public OperatorFunction<Field> {
void operator() (LinearOperatorBase<Field> &Linop, const Field &in, Field &out) {
Linop.HermOp(in,out);
};
};
template<class Field>
class Polynomial : public OperatorFunction<Field> {
private:
std::vector<RealD> Coeffs;
public:
Polynomial(std::vector<RealD> &_Coeffs) : Coeffs(_Coeffs) { };
// Implement the required interface
void operator() (LinearOperatorBase<Field> &Linop, const Field &in, Field &out) {
Field AtoN(in._grid);
Field Mtmp(in._grid);
AtoN = in;
out = AtoN*Coeffs[0];
// std::cout <<"Poly in " <<norm2(in)<<" size "<< Coeffs.size()<<std::endl;
// std::cout <<"Coeffs[0]= "<<Coeffs[0]<< " 0 " <<norm2(out)<<std::endl;
for(int n=1;n<Coeffs.size();n++){
Mtmp = AtoN;
Linop.HermOp(Mtmp,AtoN);
out=out+AtoN*Coeffs[n];
// std::cout <<"Coeffs "<<n<<"= "<< Coeffs[n]<< " 0 " <<std::endl;
// std::cout << n<<" " <<norm2(out)<<std::endl;
}
};
};
////////////////////////////////////////////////////////////////////////////////////////////
// Generic Chebyshev approximations

6
lib/algorithms/iterative/ImplicitlyRestartedLanczos.h
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@ -186,9 +186,9 @@ public:
int _Nk, // sought vecs
int _Nm, // spare vecs
RealD _eresid, // resid in lmdue deficit
RealD _betastp, // if beta(k) < betastp: converged
int _MaxIter, // Max iterations
int _MinRestart, int _orth_period = 1,
RealD _betastp=0.0, // if beta(k) < betastp: converged
int _MinRestart=1, int _orth_period = 1,
IRLdiagonalisation _diagonalisation= IRLdiagonaliseWithEigen) :
_HermOp(HermOp), _HermOpTest(HermOpTest),
Nstop(_Nstop) , Nk(_Nk), Nm(_Nm),
@ -232,7 +232,7 @@ repeat
→AVK =VKHK +fKe†K † Extend to an M = K + P step factorization AVM = VMHM + fMeM
until convergence
*/
void calc(std::vector<RealD>& eval, std::vector<Field>& evec, const Field& src, int& Nconv, bool reverse, int SkipTest)
void calc(std::vector<RealD>& eval, std::vector<Field>& evec, const Field& src, int& Nconv, bool reverse=true, int SkipTest=0)
{
GridBase *grid = src._grid;
assert(grid == evec[0]._grid);