linear_solver_context.h

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#ifndef CHITECH_LINEAR_SOLVER_CONTEXT_H
#define CHITECH_LINEAR_SOLVER_CONTEXT_H
 
namespace chi_math
{
  enum class ResidualScaleType
  {
    NONE = 0,
    RHS_NORM = 1,
    RHS_PRECONDITIONED_NORM = 2,
    CUSTOM_SCALE = 3
  };
  template<class MatType, class VecType>
  struct LinearSolverContext
  {
    double rhs_norm = 0.0;
    double rhs_preconditioned_norm = 0.0;
    double custom_residual_scale = 1.0;
    ResidualScaleType residual_scale_type = ResidualScaleType::NONE;
 
    virtual int MatrixAction(MatType& matrix, VecType& vector, VecType& action)
    {return 0;}
 
    virtual ~LinearSolverContext() = default;
  };
}//namespace chi_math
 
#endif //CHITECH_LINEAR_SOLVER_CONTEXT_H