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fix initialization bug of override cfg (#918)

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Wenwei Zhang 2021-04-02 09:43:16 +08:00 committed by GitHub
parent 9d80f56ae8
commit 3ae1b257fa
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 10 additions and 4 deletions
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14
mmcv/cnn/utils/weight_init.py
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@ -1,4 +1,5 @@
# Copyright (c) Open-MMLab. All rights reserved.
import copy
import warnings
import numpy as np
@ -445,12 +446,17 @@ def initialize(module, init_cfg):
init_cfg = [init_cfg]
for cfg in init_cfg:
override = cfg.pop('override', None)
_initialize(module, cfg)
# should deeply copy the original config because cfg may be used by
# other modules, e.g., one init_cfg shared by multiple bottleneck
# blocks, the expected cfg will be changed after pop and will change
# the initialization behavior of other modules
cp_cfg = copy.deepcopy(cfg)
override = cp_cfg.pop('override', None)
_initialize(module, cp_cfg)
if override is not None:
cfg.pop('layer', None)
_initialize_override(module, override, cfg)
cp_cfg.pop('layer', None)
_initialize_override(module, override, cp_cfg)
else:
# All attributes in module have same initialization.
pass