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// ***********************************************************************
//
// 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
#ifndef RSQP_TRACK_STATS_STD_H
#define RSQP_TRACK_STATS_STD_H
#include "MoochoPack_quasi_newton_stats.hpp"
#include "IterationPack_AlgorithmTracker.hpp"
#include "StopWatchPack_stopwatch.hpp"
namespace MoochoPack {
/** \brief This is a simple track class for getting statistics about a solved (or not
* solved) NLP.
*
* When output_final(...) is called the output stream will have the following
* written to it:
*
\begin{verbatim}
status = solved; # solved, except, max_iter, max_run_time
niter = 10; # Number of rSQP iterations
nfunc = 15; # max( number f(x) evals, number c(x) evals )
ngrad = 13; # max( number Gf(x) evals, number Gc(x) evals )
CPU = 0.50; # Number of CPU seconds total
obj_func = 1.046e-2; # Objective function value f(x) at final point
feas_kkt_err = 2.457e-10; # Feasibility error at final point (scaled ||c(x)||inf)
opt_kkt_err = 4.568e-7; # Optimality error at final point (scaled ||rGL||inf)
nact = 40; # Number of total active constraints at the final point
nbasis_change = 1; # Number of basis changes
nquasi_newton = 6; # Number of quasi-newton updates
\end{verbatim}
*
* Any statistic that is not known will be given the value '-'. If the returned status
* is 'execpt' then some exception was thrown or some other error occured so current
* information may not be available. In this case every effort is made to fill the rest
* of the information from prior iterations.
* The names of these fields will not change and the 'stat = value; # comment' format
* can be counted. However, the spacing and the precision of the numbers may be different
* from what is shown above.
*/
class MoochoTrackerStatsStd
: public IterationPack::AlgorithmTracker
{
public:
/// Construct with an output stream object.
MoochoTrackerStatsStd( const ostream_ptr_t& o, const ostream_ptr_t& journal_out );
/** \brief . */
/* Set the output stream for statistics outputting.
*/
void set_output_stream(const ostream_ptr_t& o);
/// Get the output stream for statistics outputting.
const ostream_ptr_t& get_output_stream() const;
/** @name Overridden from AlgorithmTracker */
//@{
/// Restarts the timer
void initialize();
/** \brief . */
void output_iteration(const Algorithm& algo) const;
/** \brief . */
void output_final(const Algorithm& algo, EAlgoReturn algo_return) const;
//@}
protected:
std::ostream& o() const
{ return *o_; }
private:
ostream_ptr_t o_;
mutable int num_QN_updates_;
quasi_newton_stats_iq_member quasi_newton_stats_;
mutable StopWatchPack::stopwatch timer_;
// Not defined and not to be called
MoochoTrackerStatsStd();
}; // end class MoochoTrackerStatsStd
} // end namespace MoochoPack
#endif // RSQP_TRACK_STATS_STD_H
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