_base_ = [
    '../_base_/models/mask_rcnn_r50_caffe_c4.py',
    '../_base_/datasets/coco_instance.py',
    '../_base_/schedules/schedule_2x.py', '../_base_/default_runtime.py'
]
# https://github.com/open-mmlab/mmdetection/tree/master/configs/mask_rcnn/mask-rcnn_r50-caffe-c4_1x_coco.py

norm_cfg = dict(type='SyncBN', requires_grad=True)
model = dict(
    backbone=dict(
        frozen_stages=-1,
        norm_cfg=norm_cfg,
        norm_eval=False,
        style='pytorch',
        init_cfg=dict(type='Pretrained', checkpoint='torchvision://resnet50')),
    roi_head=dict(
        shared_head=dict(
            type='ResLayerExtraNorm',
            norm_cfg=norm_cfg,
            norm_eval=False,
            style='pytorch')))

img_norm_cfg = dict(
    mean=[123.675, 116.28, 103.53], std=[58.395, 57.12, 57.375], to_rgb=True)
train_pipeline = [
    dict(type='LoadImageFromFile'),
    dict(type='LoadAnnotations', with_bbox=True, with_mask=True),
    dict(
        type='RandomChoiceResize',
        scales=[(1333, 640), (1333, 672), (1333, 704), (1333, 736),
                (1333, 768), (1333, 800)],
        keep_ratio=True),
    dict(type='RandomFlip', prob=0.5),
    dict(type='Normalize', **img_norm_cfg),
    dict(type='Pad', size_divisor=32),
    dict(type='DefaultFormatBundle'),
    dict(type='Collect', keys=['img', 'gt_bboxes', 'gt_labels']),
]

train_dataloader = dict(dataset=dict(pipeline=train_pipeline))

evaluation = dict(save_best='auto')
checkpoint_config = dict(max_keep_ckpts=1)

custom_imports = dict(
    imports=['openmixup.models.utils.layers.res_layer_extra_norm'],
    allow_failed_imports=False)

# learning policy
lr_config = dict(
    warmup_iters=1000,
    step=[16, 23])
