Amesos2_STRUMPACK_decl.hpp

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#ifndef AMESOS2_STRUMPACK_DECL_HPP
#define AMESOS2_STRUMPACK_DECL_HPP
 
#include "Amesos2_SolverTraits.hpp"
#include "Amesos2_SolverCore.hpp"
 
#ifdef HAVE_MPI
#include "StrumpackSparseSolverMPIDist.hpp"
#else
#include "StrumpackSparseSolver.hpp"
#endif
 
namespace Amesos2 {
 

template <class Matrix,
          class Vector>
class STRUMPACK : public SolverCore<Amesos2::STRUMPACK, Matrix, Vector>
{
  friend class SolverCore<Amesos2::STRUMPACK,Matrix,Vector>; // Give our base access
                                                             // to our private
                                                             // implementation funcs
public:

  static const char* name;      // declaration. Initialization outside.
 
  typedef STRUMPACK<Matrix,Vector>                                     type;
  typedef SolverCore<Amesos2::STRUMPACK,Matrix,Vector>           strum_type;
 
  typedef Matrix                                                matrix_type;
  typedef Vector                                                vector_type;
 
  // Since typedef's are not inheritted, go grab them
  typedef typename strum_type::scalar_type                      scalar_type;
  typedef typename strum_type::local_ordinal_type        local_ordinal_type;
  typedef typename strum_type::global_ordinal_type      global_ordinal_type;
  typedef typename strum_type::global_size_type            global_size_type;
  typedef typename strum_type::node_type                          node_type;



  STRUMPACK(Teuchos::RCP<const Matrix> A,
            Teuchos::RCP<Vector>       X,
            Teuchos::RCP<const Vector> B);
 

  ~STRUMPACK( );

 
private:

  int preOrdering_impl();
 

  int symbolicFactorization_impl();
 

  int numericFactorization_impl();
 

  int solve_impl(const Teuchos::Ptr<MultiVecAdapter<Vector> > X,
                 const Teuchos::Ptr<const MultiVecAdapter<Vector> > B) const;
 

  bool matrixShapeOK_impl() const;
 

  void setParameters_impl(
    const Teuchos::RCP<Teuchos::ParameterList> & parameterList );
 

  Teuchos::RCP<const Teuchos::ParameterList> getValidParameters_impl() const;
 

  bool loadA_impl(EPhase current_phase);
 
#ifdef HAVE_MPI
  Teuchos::RCP<strumpack::StrumpackSparseSolverMPIDist<scalar_type,global_ordinal_type>> sp_;
#else
  Teuchos::RCP<strumpack::StrumpackSparseSolver<scalar_type,global_ordinal_type>> sp_;
#endif
 
 
  // The following Arrays are persisting storage arrays for A, X, and B
   Teuchos::Array<scalar_type> nzvals_;
  // /// Stores the row indices of the nonzero entries
   Teuchos::Array<global_ordinal_type> colind_;
  // /// Stores the location in \c Ai_ and Aval_ that starts row j
   Teuchos::Array<global_ordinal_type> rowptr_;
  // /// 1D store for B values
   mutable Teuchos::Array<scalar_type> bvals_;
  // /// 1D store for X values
   mutable Teuchos::Array<scalar_type> xvals_;
 
#ifdef HAVE_MPI
  Teuchos::RCP<const Tpetra::Map<local_ordinal_type,
                                 global_ordinal_type,
                                 node_type> > strumpack_rowmap_;
#endif
};                              // End class STRUMPACK
 
 
// Specialize the solver_traits template for STRUMPACK
template <>
struct solver_traits<STRUMPACK> {
#if defined(HAVE_TEUCHOS_COMPLEX) && !defined(__clang__)
  typedef Meta::make_list4<float, double, std::complex<float>, std::complex<double>> supported_scalars;
#else
  typedef Meta::make_list2<float, double> supported_scalars;
#endif
};
 
} // end namespace Amesos2
 
#endif  // AMESOS2_STRUMPACK_DECL_HPP