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Fix load_torch #4383

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Merged
merged 1 commit into from
Jan 9, 2023
Merged

Fix load_torch #4383

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12 changes: 4 additions & 8 deletions paddlenlp/utils/serialization.py
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Original file line number Diff line number Diff line change
Expand Up @@ -99,7 +99,7 @@ def find_class(self, mod_name, name):
return _rebuild_tensor_stage

# pytorch_lightning tensor builder
if mod_name == "pytorch_lightning":
if "pytorch_lightning" in mod_name:
return dumpy
return super().find_class(mod_name, name)

Expand Down Expand Up @@ -219,23 +219,19 @@ def extract_maybe_dict(result):
for res in result:
extract_maybe_dict(res)
elif isinstance(result, TensorMeta):
metadata.append(result)
if result not in metadata:
metadata.append(result)

extract_maybe_dict(result_stage1)
metadata = sorted(metadata, key=lambda x: x.key)
# 3. parse the tensor of pytorch weight file
stage1_key_to_tensor = {}
content_size = os.stat(path).st_size
with open(path, "rb") as file_handler:
prefix_key = read_prefix_key(file_handler, content_size).decode("latin")
file_handler.seek(pre_offset)

for tensor_meta in metadata:
key = tensor_meta.key
# eg: archive/data/1FB
filename = f"{prefix_key}/data/{key}"
seek_by_string(file_handler, filename, content_size)
file_handler.seek(2, 1)
seek_by_string(file_handler, "FB", content_size)

padding_offset = np.frombuffer(file_handler.read(2)[:1], dtype=np.uint8)[0]
file_handler.seek(padding_offset, 1)
Expand Down