MoochoPack_CalcDFromZPZ_Step.cpp

// @HEADER
// ***********************************************************************
// 
// Moocho: Multi-functional Object-Oriented arCHitecture for Optimization
//                  Copyright (2003) Sandia Corporation
// 
// Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
// license for use of this work by or on behalf of the U.S. Government.
// 
// This library is free software; you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as
// published by the Free Software Foundation; either version 2.1 of the
// License, or (at your option) any later version.
//  
// This library is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// Lesser General Public License for more details.
//  
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
// USA
// Questions? Contact Roscoe A. Bartlett (rabartl@sandia.gov) 
// 
// ***********************************************************************
// @HEADER

#include <limits>
#include <ostream>

#include "MoochoPack_CalcDFromZPZ_Step.hpp"
#include "MoochoPack_moocho_algo_conversion.hpp"
#include "IterationPack_print_algorithm_step.hpp"
#include "AbstractLinAlgPack_VectorMutable.hpp"
#include "AbstractLinAlgPack_VectorOut.hpp"

namespace MoochoPack {

bool CalcDFromZPZ_Step::do_step(
  Algorithm& _algo, poss_type step_poss, IterationPack::EDoStepType type, poss_type assoc_step_poss
  )
{

  NLPAlgo &algo = rsqp_algo(_algo);
  NLPAlgoState &s = algo.rsqp_state();

  EJournalOutputLevel olevel = algo.algo_cntr().journal_output_level();
  EJournalOutputLevel ns_olevel = algo.algo_cntr().null_space_journal_output_level();
  std::ostream& out = algo.track().journal_out();

  // print step header.
  if( static_cast<int>(olevel) >= static_cast<int>(PRINT_ALGORITHM_STEPS) ) {
    using IterationPack::print_algorithm_step;
    print_algorithm_step( algo, step_poss, type, assoc_step_poss, out );
  }

  // d = Zpz
  VectorMutable &d_k = s.d().set_k(0) = s.Zpz().get_k(0);

  if( (int)olevel >= (int)PRINT_ALGORITHM_STEPS ) {
    out << "\n||d||inf = " << d_k.norm_inf() << std::endl;
  }

  if( (int)olevel >= (int)PRINT_VECTORS ) {
    out << "\nd_k = \n" << d_k;
  }

  return true;
}

void CalcDFromZPZ_Step::print_step(
  const Algorithm& algo, poss_type step_poss, IterationPack::EDoStepType type
  ,poss_type assoc_step_poss, std::ostream& out, const std::string& L
  ) const
{
  out
    << L << "*** Calculates the search direction d from Zpz\n"
    << L << "d_k = Zpz_k \n";
}

} // end namespace MoochoPack