Checkpointing an instance.

Hi, I am trying to run a scientific calculation job on an instance. It is a large calculation which should take a lot of time to compute. Due to the dependency among the calculations, it cannot be parallelized.My concern is that if the instance fails, I will lose all the progress. What are the best practices where if the instance fails, I can resume the computation without having to restart from the beginning.I will prefer to checkpoint periodically and launch another instance from that checkpoint. Does AWS have any built in mechanisms that I can use to checkpoint? thanks