Relight: Simple, User-Level Checkpointing and Fast Forward Replay for Distributed Task-Based Systems

Checkpointing, or periodic saving of program state to storage, is the de facto standard technique used to mitigate risks of nondeterministic bugs, hardware faults, and job wall-time limits in long-running programs. Traditional approaches require users to manually manage the migration of data to and from storage when capturing checkpoints and when resuming execution.