/
swin-base_ft-8xb256-coslr-100e_in1k-192.py
56 lines (51 loc) · 1.53 KB
/
swin-base_ft-8xb256-coslr-100e_in1k-192.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
_base_ = [
'mmcls::_base_/models/swin_transformer/base_224.py',
'../_base_/datasets/imagenet_swin_192.py',
'../_base_/schedules/adamw_coslr-100e_in1k.py',
'mmcls::_base_/default_runtime.py'
]
# SimMIM fine-tuning setting
# model settings
model = dict(
backbone=dict(
img_size=192,
drop_path_rate=0.1,
stage_cfgs=dict(block_cfgs=dict(window_size=6))))
# schedule settings
optim_wrapper = dict(
type='AmpOptimWrapper',
optimizer=dict(
type='AdamW', lr=5e-3, model_type='swin', layer_decay_rate=0.9),
clip_grad=dict(max_norm=5.0),
constructor='mmselfsup.LearningRateDecayOptimWrapperConstructor',
paramwise_cfg=dict(
custom_keys={
'.norm': dict(decay_mult=0.0),
'.bias': dict(decay_mult=0.0),
'.absolute_pos_embed': dict(decay_mult=0.0),
'.relative_position_bias_table': dict(decay_mult=0.0)
}))
# learning rate scheduler
param_scheduler = [
dict(
type='LinearLR',
start_factor=2.5e-7 / 1.25e-3,
by_epoch=True,
begin=0,
end=20,
convert_to_iter_based=True),
dict(
type='CosineAnnealingLR',
T_max=80,
eta_min=2.5e-7 * 2048 / 512,
by_epoch=True,
begin=20,
end=100,
convert_to_iter_based=True)
]
# runtime settings
default_hooks = dict(
# save checkpoint per epoch.
checkpoint=dict(type='CheckpointHook', interval=1, max_keep_ckpts=3),
logger=dict(type='LoggerHook', interval=100))
randomness = dict(seed=0)