mirror of
https://github.com/ROCm/jax.git
synced 2025-04-25 03:36:05 +00:00
b1bc841ae5
* Replace np -> jnp, onp -> np in more places. Context: #2370 * Fix typo in random_test.py
41 lines
1.2 KiB
Python
41 lines
1.2 KiB
Python
# Copyright 2018 Google LLC
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
|
# you may not use this file except in compliance with the License.
|
|
# You may obtain a copy of the License at
|
|
#
|
|
# https://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
# See the License for the specific language governing permissions and
|
|
# limitations under the License.
|
|
|
|
|
|
from .tree_util import tree_flatten, tree_unflatten
|
|
from . import linear_util as lu
|
|
from .util import safe_zip
|
|
|
|
import jax.numpy as jnp
|
|
from jax.api import vjp
|
|
|
|
zip = safe_zip
|
|
|
|
|
|
def ravel_pytree(pytree):
|
|
leaves, treedef = tree_flatten(pytree)
|
|
flat, unravel_list = vjp(ravel_list, *leaves)
|
|
unravel_pytree = lambda flat: tree_unflatten(treedef, unravel_list(flat))
|
|
return flat, unravel_pytree
|
|
|
|
def ravel_list(*lst):
|
|
return jnp.concatenate([jnp.ravel(elt) for elt in lst]) if lst else jnp.array([])
|
|
|
|
|
|
@lu.transformation_with_aux
|
|
def ravel_fun(unravel_inputs, flat_in, **kwargs):
|
|
pytree_args = unravel_inputs(flat_in)
|
|
ans = yield pytree_args, {}
|
|
yield ravel_pytree(ans)
|