Add Orbax v1 StatefulCheckpointable for MaxText grain iterators.#4380
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Add Orbax v1 StatefulCheckpointable for MaxText grain iterators.#4380copybara-service[bot] wants to merge 1 commit into
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This change introduces `grain_utility.py`, which provides a `GrainCheckpointable` class for handling checkpointing of various data iterator types used in MaxText. It supports standard grain iterators, ElasticIterator, RemoteIteratorWrapper, and lists of iterators for data scaling. The module includes `for_save` and `for_restore` factory functions to build the appropriate `GrainCheckpointable` instance based on the iterator type and configuration. This is supposed to be 1:1 with the original grain checkpoint handler logic, the v0 logic is marked for removal once cl/929057022 lands as distillation_utils is seemingly the only other component which utilizes this handler. PiperOrigin-RevId: 944311355
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Add Orbax v1 StatefulCheckpointable for MaxText grain iterators.
This change introduces
grain_utility.py, which provides aGrainCheckpointableclass for handling checkpointing of various data iterator types used in MaxText. It supports standard grain iterators, ElasticIterator, RemoteIteratorWrapper, and lists of iterators for data scaling. The module includesfor_saveandfor_restorefactory functions to build the appropriateGrainCheckpointableinstance based on the iterator type and configuration.This is supposed to be 1:1 with the original grain checkpoint handler logic, the v0 logic is marked for removal once cl/929057022 lands as distillation_utils is seemingly the only other component which utilizes this handler.