mmpretrain/configs/t2t_vit/t2t-vit-t-24_8xb64_in1k.py

_base_ = [
    '../_base_/models/t2t-vit-t-24.py',
    '../_base_/datasets/imagenet_bs64_t2t_224.py',
    '../_base_/default_runtime.py',
]

# schedule settings
paramwise_cfg = dict(
    norm_decay_mult=0.0,
    bias_decay_mult=0.0,
    custom_keys={'cls_token': dict(decay_mult=0.0)},
)
optimizer = dict(
    type='AdamW',
    lr=5e-4,
    weight_decay=0.065,
    paramwise_cfg=paramwise_cfg,
)

param_scheduler = [
    # warm up learning rate schedule
    dict(
        type='LinearLR',
        start_factor=1e-6,
        by_epoch=True,
        begin=0,
        end=10,
        # update by iter
        convert_to_iter_based=True),
    # main learning rate scheduler
    dict(
        type='CosineAnnealingLR',
        T_max=290,
        eta_min=1e-5,
        by_epoch=True,
        begin=10,
        end=300),
    # cool down learning rate scheduler
    dict(type='ConstantLR', factor=0.1, by_epoch=True, begin=300, end=310),
]

train_cfg = dict(by_epoch=True, max_epochs=310)
val_cfg = dict(interval=1)  # validate every epoch
test_cfg = dict()

# runtime settings
custom_hooks = [dict(type='EMAHook', momentum=4e-5, priority='ABOVE_NORMAL')]