Source code for multistorageclient.contrib.torch

 1# SPDX-FileCopyrightText: Copyright (c) 2024 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
 2# SPDX-License-Identifier: Apache-2.0
 3#
 4# Licensed under the Apache License, Version 2.0 (the "License");
 5# you may not use this file except in compliance with the License.
 6# You may obtain a copy of the License at
 7#
 8# http://www.apache.org/licenses/LICENSE-2.0
 9#
10# Unless required by applicable law or agreed to in writing, software
11# distributed under the License is distributed on an "AS IS" BASIS,
12# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13# See the License for the specific language governing permissions and
14# limitations under the License.
15
16from typing import Any
17
18import torch as _torch
19from torch.serialization import FILE_LIKE
20
21from ..shortcuts import open as msc_open
22from ..types import MSC_PROTOCOL
23
24

[docs]
25def load(f: FILE_LIKE, *args: Any, **kwargs: Any) -> Any:
26    """
27    Adapt ``torch.load``.
28    """
29    if isinstance(f, str) and f.startswith(MSC_PROTOCOL):
30        with msc_open(f, "rb") as fp:
31            return _torch.load(fp, *args, **kwargs)
32    else:
33        return _torch.load(f, *args, **kwargs)

34
35

[docs]
36def save(obj: object, f: FILE_LIKE, *args: Any, **kwargs: Any) -> Any:
37    """
38    Adapt ``torch.save``.
39    """
40    if isinstance(f, str) and f.startswith(MSC_PROTOCOL):
41        with msc_open(f, "wb") as fp:
42            return _torch.save(obj, fp, *args, **kwargs)
43    else:
44        return _torch.save(obj, f, *args, **kwargs)