restart.hpp

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#pragma once
 
#include <meltpooldg/time_integration/time_iterator.hpp>
#include <meltpooldg/utilities/attach_vectors.hpp>
#include <meltpooldg/utilities/restart_data.hpp>
 
#include <chrono>
#include <filesystem>
#include <functional>
#include <string>
#include <vector>
 
 
namespace MeltPoolDG::Restart
{
  template <typename number>
  class RestartMonitor
  {
  public:
    RestartMonitor(const RestartData<number>                   &data,
                   const TimeIntegration::TimeIterator<number> &time);
 
    bool
    do_load() const;
 
    bool
    do_save() const;
 
    void
    prepare_save();
 
  private:
    const RestartData<number>                         &data;
    std::filesystem::path                              dir;
    std::filesystem::path                              prefix;
    const TimeIntegration::TimeIterator<number>       &time;
    mutable number                                     last_written_time = 0.0;
    std::chrono::time_point<std::chrono::system_clock> real_time_start;
    std::vector<std::string>                           suffices = {"_tria",
                                                                   "_tria.info",
                                                                   "_tria_fixed.data",
                                                                   "_tria_variable.data",
                                                                   "_problem.restart"};
 
    number
    compute_current_time() const;
  };
 
  /***************************************************************************************
   * internal functions
   ***************************************************************************************/
 
  template <int dim, typename VectorType>
  void
  serialize_internal(const AttachDoFHandlerAndVectorsType<dim, VectorType> &attach_vectors,
                     const std::string                                     &prefix);
 
  template <int dim, typename VectorType>
  void
  deserialize_internal(const AttachDoFHandlerAndVectorsType<dim, VectorType> &attach_vectors,
                       const std::function<void()>                           &post,
                       const std::function<void()>                           &setup_dof_system,
                       const std::string                                     &prefix);
 
} // namespace MeltPoolDG::Restart