package torch

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val loop : start_index:int -> end_index:int -> var_stores:Var_store.t list -> checkpoint_base:string -> ?only_keep:int -> ?checkpoint_every:[ `iters of int | `seconds of float ] -> (index:int -> unit) -> unit

loop ~start_index ~end_index ~var_stores ~checkpoint_base f starts a loop ranging from start_index to end_index. On each iteration f is called on the current index.

This loop is checkpointed: regularly the state of all the elements of var_stores are saved on disk to file checkpoint_baseXXX. If such files already exist when starting the loop, the last one of this file is used to restore the variables content.