task:
  # init_checkpoint: 'a_pretrained_backbone_checkpoint'
  init_checkpoint_modules: backbone
  freeze_backbone: true
  model:
    backbone:
      resnet:
        model_id: 101
        replace_stem_max_pool: true
        resnetd_shortcut: true
        scale_stem: true
        se_ratio: 0.25
        stem_type: v1
      type: resnet
    decoder:
      type: fpn
  train_data:
    global_batch_size: 256
    parser:
      aug_rand_hflip: true
      aug_scale_max: 2.0
      aug_scale_min: 0.1
trainer:
  optimizer_config:
    learning_rate:
      stepwise:
        boundaries: [265684, 272615]
        name: PiecewiseConstantDecay
        offset: 0
        values: [0.32, 0.032, 0.0032]
      type: stepwise
  steps_per_loop: 462
  summary_interval: 462
  train_steps: 277235
