/home/coin/SVN-release/CoinAll-1.1.0/Ipopt/src/Algorithm/LinearSolvers/IpPardisoSolverInterface.hpp

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// Copyright (C) 2004, 2006 International Business Machines and others.
// All Rights Reserved.
// This code is published under the Common Public License.
//
// $Id: IpPardisoSolverInterface.hpp 1119 2007-11-08 17:13:50Z andreasw $
//
// Authors:  Carl Laird, Andreas Waechter     IBM    2005-03-17


#ifndef __IPPARDISOSOLVERINTERFACE_HPP__
#define __IPPARDISOSOLVERINTERFACE_HPP__

#include "IpSparseSymLinearSolverInterface.hpp"

namespace Ipopt
{

  class PardisoSolverInterface: public SparseSymLinearSolverInterface
  {
  public:
    PardisoSolverInterface();

    virtual ~PardisoSolverInterface();

    bool InitializeImpl(const OptionsList& options,
                        const std::string& prefix);


    virtual ESymSolverStatus InitializeStructure(Index dim, Index nonzeros,
        const Index *ia,
        const Index *ja);

    virtual double* GetValuesArrayPtr();

    virtual ESymSolverStatus MultiSolve(bool new_matrix,
                                        const Index* ia,
                                        const Index* ja,
                                        Index nrhs,
                                        double* rhs_vals,
                                        bool check_NegEVals,
                                        Index numberOfNegEVals);

    virtual Index NumberOfNegEVals() const;

    //* @name Options of Linear solver */

    virtual bool IncreaseQuality();

    virtual bool ProvidesInertia() const
    {
      return true;
    }
    EMatrixFormat MatrixFormat() const
    {
      return CSR_Format_1_Offset;
    }

    static void RegisterOptions(SmartPtr<RegisteredOptions> roptions);

  private:
    PardisoSolverInterface(const PardisoSolverInterface&);

    void operator=(const PardisoSolverInterface&);

    Index dim_;

    Index nonzeros_;

    double* a_;

    Index negevals_;

    enum PardisoMatchingStrategy
    {
      COMPLETE,
      COMPLETE2x2,
      CONSTRAINT
    };
    PardisoMatchingStrategy match_strat_;
    bool have_symbolic_factorization_;
    bool pardiso_redo_symbolic_fact_only_if_inertia_wrong_;
    bool pardiso_repeated_perturbation_means_singular_;
    bool skip_inertia_check_;

    bool initialized_;

    void** PT_;
    ipfint MAXFCT_;
    ipfint MNUM_;
    ipfint MTYPE_;
    ipfint* IPARM_;
    ipfint MSGLVL_;

    Index debug_last_iter_;
    Index debug_cnt_;

    ESymSolverStatus SymbolicFactorization(const Index* ia,
                                           const Index* ja);

    ESymSolverStatus Factorization(const Index* ia,
                                   const Index* ja,
                                   bool check_NegEVals,
                                   Index numberOfNegEVals);

    ESymSolverStatus Solve(const Index* ia,
                           const Index* ja,
                           Index nrhs,
                           double *rhs_vals);
  };

} // namespace Ipopt
#endif

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