Checkpoint

class Checkpoint

Checkpoint after user defined number of hours. Note that for OMP or parallel simulations, the number of hours is multiplied by the number of cores.

Public Functions

Checkpoint(argtype args = argtype())

args:

num_hours: Number of hours between printing of checkpoint file (default: 1).
num_hours_terminate: Terminate after this many hours. If -1, do not terminate (default: -1). Termination may be detected in Bash shell using “$? != 0”.
file_name: The default is one space (e.g., ” “). Do not checkpoint if file_name is empty or is one space.
writes_per_backup: Create a unique checkpoint file name every this many times that a checkpoint is written (default: -1). If -1, only backup the previous file by appending its name with “.bak”. Otherwise, if > 0, append each backup with an integer count beginning 0.

template<typename T> void write(const T &obj, const std::string append_backup = ".bak") const: Write the checkpoint to file. If the file exists, create backup.

template<typename T> void check(const T &obj): Write object to file_name if num_hours has passed since previous.

template<typename T> void read(T *obj): Initialize object by reading from file.