/usr/include/trilinos/StopWatchPack_stopwatch.hpp is in libtrilinos-dev 10.4.0.dfsg-1ubuntu2.
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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 STPWATCH_H
#define STPWATCH_H
#include "Moocho_ConfigDefs.hpp"
namespace StopWatchPack {
/** @name namespace StopWatchPack
*
* @memo Package for CPU timing.
*/
//@{
double seconds(void);
/** \brief Simple stopwatch object.
*/
class stopwatch {
public:
/// Initializes of not running.
stopwatch() : running_(false), last_time_(0.0), total_(0.0)
{}
/// Returns true if <tt>this</tt> is currently timming.
bool is_running() const {
return running_;
}
/// Starts timing if it has already not been started.
void start() {
if (!running_) {
last_time_ = seconds();
running_ = true;
}
}
/// Stops timing and returns the time (sec.) since start() was called
double stop() {
if (running_) {
total_ += seconds() - last_time_;
running_ = false;
}
//std::cout << "total = " << total_ << std::endl;
return total_;
}
/// Stops and resets the clock if it is running.
void reset() {
running_ = false;
last_time_ = 0.0;
total_ = 0.0;
}
/// Reads the elapsed time (sec.) and leaves the clock running.
double read() {
if (running_) {
double curr_time = seconds();
total_ += curr_time - last_time_;
last_time_ = curr_time;
}
return total_;
}
private:
bool running_;
double last_time_;
double total_;
};
// end namespace StopWatchPack
//@}
} // end namespace StopWatchPack
#endif // STPWATCH_H
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