mmdetection-2.26.0/configs/gn/mask_rcnn_r101_fpn_gn-all_2x_coco.py

_base_ = './mask_rcnn_r50_fpn_gn-all_2x_coco.py'
model = dict(
    backbone=dict(
        depth=101,
        init_cfg=dict(
            type='Pretrained',
            checkpoint='open-mmlab://detectron/resnet101_gn')))