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Make unsupport sparse solvers use SparseSolverBase

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This commit is contained in:
Gael Guennebaud
2014-09-01 17:21:47 +02:00
parent b3d63b4db2
commit b051bbd64f
5 changed files with 55 additions and 26 deletions
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13
unsupported/Eigen/src/IterativeSolvers/DGMRES.h
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@@ -108,6 +108,7 @@ class DGMRES : public IterativeSolverBase<DGMRES<_MatrixType,_Preconditioner> >
using Base::m_isInitialized;
using Base::m_tolerance;
public:
using Base::_solve_impl;
typedef _MatrixType MatrixType;
typedef typename MatrixType::Scalar Scalar;
typedef typename MatrixType::Index Index;
@@ -138,6 +139,7 @@ class DGMRES : public IterativeSolverBase<DGMRES<_MatrixType,_Preconditioner> >
~DGMRES() {}
#ifndef EIGEN_TEST_EVALUATORS
/** \returns the solution x of \f$ A x = b \f$ using the current decomposition of A
* \a x0 as an initial solution.
*
@@ -153,10 +155,11 @@ class DGMRES : public IterativeSolverBase<DGMRES<_MatrixType,_Preconditioner> >
return internal::solve_retval_with_guess
<DGMRES, Rhs, Guess>(*this, b.derived(), x0);
}
#endif
/** \internal */
template<typename Rhs,typename Dest>
void _solveWithGuess(const Rhs& b, Dest& x) const
void _solve_with_guess_impl(const Rhs& b, Dest& x) const
{
bool failed = false;
for(int j=0; j<b.cols(); ++j)
@@ -175,10 +178,10 @@ class DGMRES : public IterativeSolverBase<DGMRES<_MatrixType,_Preconditioner> >
/** \internal */
template<typename Rhs,typename Dest>
void _solve(const Rhs& b, Dest& x) const
void _solve_impl(const Rhs& b, MatrixBase<Dest>& x) const
{
x = b;
_solveWithGuess(b,x);
_solve_with_guess_impl(b,x.derived());
}
/**
* Get the restart value
@@ -522,6 +525,7 @@ int DGMRES<_MatrixType, _Preconditioner>::dgmresApplyDeflation(const RhsType &x,
return 0;
}
#ifndef EIGEN_TEST_EVALUATORS
namespace internal {
template<typename _MatrixType, typename _Preconditioner, typename Rhs>
@@ -533,10 +537,11 @@ struct solve_retval<DGMRES<_MatrixType, _Preconditioner>, Rhs>
template<typename Dest> void evalTo(Dest& dst) const
{
dec()._solve(rhs(),dst);
dec()._solve_impl(rhs(),dst);
}
};
} // end namespace internal
#endif
} // end namespace Eigen
#endif