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Update orbax_upgrade_guide.rst for async checkpointing usage examples #4036

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merged 5 commits into from
Jul 9, 2024
Merged

Update orbax_upgrade_guide.rst for async checkpointing usage examples #4036

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Update orbax_upgrade_guide.rst for async checkpointing usage examples
kaushaladiti-2802 Jun 26, 2024
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Update orbax_upgrade_guide.rst
kaushaladiti-2802 Jul 8, 2024
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Update orbax_upgrade_guide.rst
kaushaladiti-2802 Jul 8, 2024
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Update orbax_upgrade_guide.rst
kaushaladiti-2802 Jul 9, 2024
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Update orbax_upgrade_guide.rst
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Update orbax_upgrade_guide.rst
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kaushaladiti-2802 committed Jul 9, 2024
commit 491000525c6cbd469bf3d56ca47c4ed48753ded7
19 changes: 8 additions & 11 deletions docs/guides/converting_and_upgrading/orbax_upgrade_guide.rst
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Expand Up @@ -45,8 +45,8 @@ Setup

# Create some dummy variables for this example.
MAX_STEPS = 5
CKPT_PYTREE = [12, {'foo': 'str', 'bar': np.array((2, 3))}, [1, 4, 10]]
TARGET_PYTREE = [0, {'foo': '', 'bar': np.array((0))}, [0, 0, 0]]
CKPT_PYTREE = [12, {'bar': np.array((2, 3))}, [1, 4, 10]]
TARGET_PYTREE = [0, {'bar': np.array((0))}, [0, 0, 0]]

Most common use case: Saving/loading and managing checkpoints
*************************************************************
Expand Down Expand Up @@ -188,26 +188,23 @@ For example:
:skip_test: flax.checkpoints
:sync:

PURE_CKPT_DIR = '/tmp/orbax_upgrade/pure'
ASYNC_CKPT_DIR = '/tmp/orbax_upgrade/async'
flax.config.update('flax_use_orbax_checkpointing', True)
async_manager = checkpoints.AsyncManager()

checkpoints.save_checkpoint(PURE_CKPT_DIR, CKPT_PYTREE, step=0, overwrite=True, async_manager=async_manager)
checkpoints.restore_checkpoint(PURE_CKPT_DIR, target=TARGET_PYTREE)
checkpoints.save_checkpoint(ASYNC_CKPT_DIR, CKPT_PYTREE, step=0, overwrite=True, async_manager=async_manager)
checkpoints.restore_checkpoint(ASYNC_CKPT_DIR, target=TARGET_PYTREE)
---

# Create some dummy variables for this example.
CKPT_PYTREE_ASYNC = [12, {'bar': np.array((2, 3))}, [1, 4, 10]]
TARGET_PYTREE_ASYNC = [0, {'bar': np.array((0))}, [0, 0, 0]]
PURE_CKPT_DIR_ASYNC = '/tmp/orbax_upgrade/pure_async'
ASYNC_CKPT_DIR = '/tmp/orbax_upgrade/async'

import orbax.checkpoint as ocp
ckptr = ocp.AsyncCheckpointer(ocp.StandardCheckpointHandler())
ckptr.save(PURE_CKPT_DIR, args=ocp.args.StandardSave(CKPT_PYTREE_ASYNC))
ckptr.save(ASYNC_CKPT_DIR, args=ocp.args.StandardSave(CKPT_PYTREE))
# ... Continue with your work...
# ... Until a time when you want to wait until the save completes:
ckptr.wait_until_finished() # Blocks until the checkpoint saving is completed.
ckptr.restore(PURE_CKPT_DIR_ASYNC, args=ocp.args.StandardRestore(TARGET_PYTREE_ASYNC))
ckptr.restore(ASYNC_CKPT_DIR, args=ocp.args.StandardRestore(TARGET_PYTREE))


Saving/loading a single JAX or NumPy Array
Expand Down
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