DeepSpeed Activation Checkpointing
======================

The activation checkpointing API's in DeepSpeed can be used to enable a range of memory optimizations relating
to activation checkpointing. These include activation partitioning across
GPUs when using model parallelism, CPU Checkpointing, contiguous memory optimizations, etc.
Please see the `DeepSpeed JSON config <https://www.deepspeed.ai/docs/config-json/>`_ for the full set.

Here we present the activation checkpointing API's.
Please see the enabling DeepSpeed for Megatron-LM tutorial for usage details.

.. autofunction:: deepspeed.checkpointing.configure

.. autofunction:: deepspeed.checkpointing.is_configured

.. autofunction:: deepspeed.checkpointing.checkpoint

.. autofunction:: deepspeed.checkpointing.reset

.. autofunction:: deepspeed.checkpointing.get_cuda_rng_tracker

.. autofunction:: deepspeed.checkpointing.model_parallel_cuda_manual_seed

.. autoclass:: deepspeed.checkpointing.CudaRNGStatesTracker

.. autoclass:: deepspeed.checkpointing.CheckpointFunction