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ADEF1 and 1 hop projection

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This commit is contained in:
Peter Boyle
2023-10-03 14:22:18 -04:00
parent b01e67bab1
commit 737d3ffb98
3 changed files with 75 additions and 134 deletions
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68
Grid/algorithms/iterative/AdefGeneric.h
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@ -43,7 +43,7 @@ Author: Peter Boyle <paboyle@ph.ed.ac.uk>
NAMESPACE_BEGIN(Grid);
template<class Field, class CoarseField, class Aggregation>
class TwoLevelFlexiblePcg : public LinearFunction<Field>
class TwoLevelADEF2 : public LinearFunction<Field>
{
public:
RealD Tolerance;
@ -64,14 +64,14 @@ class TwoLevelFlexiblePcg : public LinearFunction<Field>
Aggregation &_Aggregates;
// more most opertor functions
TwoLevelFlexiblePcg(RealD tol,
Integer maxit,
LinearOperatorBase<Field> &FineLinop,
LinearFunction<Field> &Smoother,
LinearFunction<CoarseField> &CoarseSolver,
LinearFunction<CoarseField> &CoarseSolverPrecise,
Aggregation &Aggregates
) :
TwoLevelADEF2(RealD tol,
Integer maxit,
LinearOperatorBase<Field> &FineLinop,
LinearFunction<Field> &Smoother,
LinearFunction<CoarseField> &CoarseSolver,
LinearFunction<CoarseField> &CoarseSolverPrecise,
Aggregation &Aggregates
) :
Tolerance(tol),
MaxIterations(maxit),
_FineLinop(FineLinop),
@ -84,7 +84,7 @@ class TwoLevelFlexiblePcg : public LinearFunction<Field>
grid = Aggregates.FineGrid;
};
void Inflexible(const Field &src,Field &psi)
virtual void operator() (const Field &src, Field &psi)
{
Field resid(grid);
RealD f;
@ -192,10 +192,6 @@ class TwoLevelFlexiblePcg : public LinearFunction<Field>
return ;
}
virtual void operator() (const Field &in, Field &out)
{
this->Inflexible(in,out);
}
public:
@ -285,5 +281,49 @@ class TwoLevelFlexiblePcg : public LinearFunction<Field>
}
};
template<class Field, class CoarseField, class Aggregation>
class TwoLevelADEF1ev : public TwoLevelADEF2<Field,CoarseField,Aggregation>
{
TwoLevelADEF1ev(RealD tol,
Integer maxit,
LinearOperatorBase<Field> &FineLinop,
LinearFunction<Field> &Smoother,
LinearFunction<CoarseField> &CoarseSolver,
LinearFunction<CoarseField> &CoarseSolverPrecise,
Aggregation &Aggregates ) :
TwoLevelADEF2<Field,CoarseField,Aggregation>(tol,maxit,FineLinop,Smoother,CoarseSolver,CoarseSolverPrecise,Aggregates)
{};
// Can just inherit existing Vstart
// Can just inherit existing Vout
// Can just inherit existing M2
// Can just inherit existing M3
// Override PcgM1
virtual void PcgM1(Field & in, Field & out)
{
CoarseField PleftProj(this->coarsegrid);
CoarseField PleftMss_proj(this->coarsegrid);
Field tmp(this->grid);
Field Pin(this->grid);
//MP + Q = M(1-AQ) + Q = M
// // If we are eigenvector deflating in coarse space
// // Q = Sum_i |phi_i> 1/lambda_i <phi_i|
// // A Q = Sum_i |phi_i> <phi_i|
// // M(1-AQ) = M(1-proj) + Q
this->_Aggregates.ProjectToSubspace(PleftProj,in);
this->_Aggregates.PromoteFromSubspace(PleftProj,tmp);// tmp = Qin
Pin = in - tmp;
this->_Smoother(Pin,out);
this->_CoarseSolver(PleftProj,PleftMss_proj);
this->_Aggregates.PromoteFromSubspace(PleftMss_proj,tmp);// tmp = Qin
out = out + tmp;
}
};
NAMESPACE_END(Grid);
#endif