chore: import upstream snapshot with attribution

python/paddle/distributed/communication/serialization_utils.py

@@ -0,0 +1,34 @@
+# Copyright (c) 2022 PaddlePaddle Authors. All Rights Reserved.
+#
+# 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
+#
+#     http://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.
+
+import io
+import pickle
+
+import numpy as np
+
+import paddle
+
+
+def convert_object_to_tensor(obj):
+    _pickler = pickle.Pickler
+    f = io.BytesIO()
+    _pickler(f).dump(obj)
+    data = np.frombuffer(f.getvalue(), dtype=np.uint8)
+    tensor = paddle.to_tensor(data)
+    return tensor, tensor.numel()
+
+
+def convert_tensor_to_object(tensor, len_of_tensor):
+    _unpickler = pickle.Unpickler
+    return _unpickler(io.BytesIO(tensor.numpy()[:len_of_tensor])).load()