Save_Restart.h

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#ifndef Save_Restart_included
#define Save_Restart_included
 
#include <Sortie_Fichier_base.h>
#include <Sortie_Brute.h>
#include <TRUST_Deriv.h>
#include <TRUST_Ref.h>
 
class Probleme_base;
 
class Save_Restart
{
public:
  void assoscier_pb_base(const Probleme_base&);
 
  void allocation() const;
  int allocate_file_size(long int& size) const;
  inline const char* reprise_format_temps() const;
 
  inline bool& reprise_effectuee() { return restart_done_; }
  inline bool reprise_effectuee() const { return restart_done_; }
 
  void preparer_calcul() ;
 
  void sauver_xyz(int) const;
 
  bool is_restart_in_progress() const { return restart_in_progress_; }
  void set_restart_in_progress(const bool res) { restart_in_progress_ = res; }
 
  int is_sauvegarde_simple() const { return simple_restart_; }
  const Nom& checkpoint_filename() const { return checkpoint_filename_; }
  const Nom& restart_filename() const { return restart_filename_; }
  const Nom& checkpoint_format() const { return checkpoint_format_; }
  const Nom& yaml_filename() const { return yaml_fname_; }
 
  void lire_sauvegarde_reprise(Entree& is, Motcle& motlu) ;
  int sauver() const;
  void finir();
 
private:
 
  void lire_reprise(Entree& is, Motcle& motlu) ;
  void lire_sauvegarde(Entree& is, Motcle& motlu) ;
  void lire_pdi_sauvegarde_reprise(Entree& is, Motcle& motlu, Nom& restart_file_name, Nom& yaml_fname);
 
  void setTinitFromLastTime(double last_time);
  void prepare_PDI_restart(int resume_last_time);
  void checkVersion(const Nom& nomfic);
 
  OBS_PTR(Probleme_base) pb_base_;
 
  mutable OWN_PTR(Sortie_Fichier_base) ficsauv_;
 
  mutable Sortie_Brute* osauv_hdf_ = nullptr; // !! DEPRECATED !! TO DELETE !!
 
  Nom checkpoint_filename_;  // Name of the file for save
  Nom restart_filename_;  // Name of the file for restart
  Nom checkpoint_format_;     // Format for the save restart
  Nom yaml_fname_;         // The name of the yaml file that will be used to initialize PDI (can be provided by the (advanced)user, or is automatically generated)
  bool restart_done_ = false;         // Has a restart been done?
  int simple_restart_ = 0;       // Do we only save the last time step (simple restart) or do we save them all ?
  int restart_version_ = 155;         // Version number, for example 155 (1.5.5) -> used to manage old restart files
  bool restart_in_progress_ = false;  //true variable only during the time step during which a resumption of computation is carried out
  mutable bool ficsauv_created_ = false;      // flag to know if the checkpoint file has been created (useful for PDI)
  mutable bool config_file_created_ = false;      // flag to know if the file describing the configuration of the checkpoint has been created (useful for PDI)
  // for PDI:
  // communicator used to read the checkpoint file
  // (useful if the current node partition is different than the one for checkpoint)
  OWN_PTR(Comm_Group) restartComm_;
 
  static long int File_size_;        // Espace disque pris par les sauvegarde XYZ
  static int Bad_allocate_;        // 1 si allocation reussi, 0 sinon
  static int Nb_pb_total_;        // Nombre total de probleme
  static int Num_pb_;                // numero du probleme
  mutable Nom error_;                // Erreur d'allocation
 
};
 
// Method which may be called from anywhere:
inline const char* time_format_from(const int reprise_version)
{
  // Depuis la 155 le format de la balise temps est en scientifique
  // pour eviter des erreurs (incoherence entre temps)
  if (reprise_version<155)
    return "%f";
  else
    return "%e";
}
 
inline const char* Save_Restart::reprise_format_temps() const
{
  return time_format_from(restart_version_);
}
 
#endif /* Save_Restart_included */