display_timer.hpp

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// Function to store and display wall/proc times obtained by boost::timer::cpu_timer
 
/*
 *
 *      This library was developed around HHO methods, although some parts of it have a more
 * general purpose. If you use this code or part of it in a scientific publication, 
 * please mention the following book as a reference for the underlying principles
 * of HHO schemes:
 *
 * The Hybrid High-Order Method for Polytopal Meshes: Design, Analysis, and Applications. 
 *  D. A. Di Pietro and J. Droniou. Modeling, Simulation and Applications, vol. 19. 
 *  Springer International Publishing, 2020, xxxi + 525p. doi: 10.1007/978-3-030-37203-3. 
 *  url: https://hal.archives-ouvertes.fr/hal-02151813.
 *
 */
 
#ifndef DISPLAY_TIMER_HPP
#define DISPLAY_TIMER_HPP
 
#include <boost/timer/timer.hpp>
 
namespace HArDCore2D
{
 
 
    inline std::pair<double,double> store_times(
                              boost::timer::cpu_timer & timer,  
                              std::string message = ""        
                              )
    {
      double twall = double(timer.elapsed().wall) * pow(10, -9);
      double tproc = double(timer.elapsed().user + timer.elapsed().system) * pow(10, -9);
      
      if (message != ""){
        std::cout << message << twall << "/" << tproc << std::endl;
      }
 
      return std::make_pair(twall, tproc);
    };
 
 
} // end of namespace HArDCore2D
 
#endif