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Consolidate polynomial smoothers + logging time breakdown in Dense Coarsest invers

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This commit is contained in:
Peter Boyle
2026-08-26 14:20:50 -04:00
parent d7c9076228
commit b55ca3d50d
21 changed files with 122 additions and 642 deletions
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tests/debug/Test_general_coarse_hdcg_phys48_blockcg.cc
-55
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@@ -291,63 +291,8 @@ public:
};
RealD InverseApproximation(RealD x){
return 1.0/x;
}
template<class Field> class ChebyshevSmoother : public LinearFunction<Field>
{
public:
using LinearFunction<Field>::operator();
typedef LinearOperatorBase<Field> FineOperator;
FineOperator & _SmootherOperator;
Chebyshev<Field> Cheby;
ChebyshevSmoother(RealD _lo,RealD _hi,int _ord, FineOperator &SmootherOperator) :
_SmootherOperator(SmootherOperator),
Cheby(_lo,_hi,_ord,InverseApproximation)
{
std::cout << GridLogMessage<<" Chebyshev smoother order "<<_ord<<" ["<<_lo<<","<<_hi<<"]"<<std::endl;
};
void operator() (const Field &in, Field &out)
{
// Field r(out.Grid());
Cheby(_SmootherOperator,in,out);
// _SmootherOperator.HermOp(out,r);
// r=r-in;
// RealD rr=norm2(r);
// RealD ss=norm2(in);
// std::cout << GridLogMessage<<" Chebyshev smoother resid "<<::sqrt(rr/ss)<<std::endl;
}
};
template<class Field> class ChebyshevInverter : public LinearFunction<Field>
{
public:
using LinearFunction<Field>::operator();
typedef LinearOperatorBase<Field> FineOperator;
FineOperator & _Operator;
Chebyshev<Field> Cheby;
ChebyshevInverter(RealD _lo,RealD _hi,int _ord, FineOperator &Operator) :
_Operator(Operator),
Cheby(_lo,_hi,_ord,InverseApproximation)
{
std::cout << GridLogMessage<<" Chebyshev Inverter order "<<_ord<<" ["<<_lo<<","<<_hi<<"]"<<std::endl;
};
void operator() (const Field &in, Field &out)
{
Field r(in.Grid());
Field AinvR(in.Grid());
_Operator.HermOp(out,r);
r = in - r; // b - A x
Cheby(_Operator,r,AinvR); // A^{-1} ( b - A x ) ~ A^{-1} b - x
out = out + AinvR;
_Operator.HermOp(out,r);
r = in - r; // b - A x
RealD rr = norm2(r);
RealD ss = norm2(in);
std::cout << "ChebshevInverse resid " <<::sqrt(rr/ss)<<std::endl;
}
};