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Update train.py #428

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Oct 29, 2021
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Update train.py #428

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1b3df85
Update train.py
gszh Mar 16, 2021
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Update train.py
gszh Mar 21, 2021
a7f1ded
Update train.py
gszh Mar 21, 2021
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17 changes: 16 additions & 1 deletion mmseg/apis/train.py
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Original file line number Diff line number Diff line change
Expand Up @@ -4,7 +4,8 @@
import numpy as np
import torch
from mmcv.parallel import MMDataParallel, MMDistributedDataParallel
from mmcv.runner import build_optimizer, build_runner
from mmcv.runner import HOOKS, build_optimizer, build_runner
from mmcv.utils import build_from_cfg

from mmseg.core import DistEvalHook, EvalHook
from mmseg.datasets import build_dataloader, build_dataset
Expand Down Expand Up @@ -109,6 +110,20 @@ def train_segmentor(model,
eval_hook = DistEvalHook if distributed else EvalHook
runner.register_hook(eval_hook(val_dataloader, **eval_cfg))

# user-defined hooks
if cfg.get('custom_hooks', None):
custom_hooks = cfg.custom_hooks
assert isinstance(custom_hooks, list), \
f'custom_hooks expect list type, but got {type(custom_hooks)}'
for hook_cfg in cfg.custom_hooks:
assert isinstance(hook_cfg, dict), \
'Each item in custom_hooks expects dict type, but got ' \
f'{type(hook_cfg)}'
hook_cfg = hook_cfg.copy()
priority = hook_cfg.pop('priority', 'NORMAL')
hook = build_from_cfg(hook_cfg, HOOKS)
runner.register_hook(hook, priority=priority)

if cfg.resume_from:
runner.resume(cfg.resume_from)
elif cfg.load_from:
Expand Down