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# Copyright (c) OpenMMLab. All rights reserved.
import torch
from mmengine.dist import get_world_size
from mmengine.logging import print_log
from mmdet.registry import MODELS
from mmdet.utils import ConfigType, OptConfigType, OptMultiConfig
from .single_stage import SingleStageDetector
@MODELS.register_module()
class RTMDet(SingleStageDetector):
"""Implementation of RTMDet.
Args:
backbone (:obj:`ConfigDict` or dict): The backbone module.
neck (:obj:`ConfigDict` or dict): The neck module.
bbox_head (:obj:`ConfigDict` or dict): The bbox head module.
train_cfg (:obj:`ConfigDict` or dict, optional): The training config
of ATSS. Defaults to None.
test_cfg (:obj:`ConfigDict` or dict, optional): The testing config
of ATSS. Defaults to None.
data_preprocessor (:obj:`ConfigDict` or dict, optional): Config of
:class:`DetDataPreprocessor` to process the input data.
Defaults to None.
init_cfg (:obj:`ConfigDict` or dict, optional): the config to control
the initialization. Defaults to None.
use_syncbn (bool): Whether to use SyncBatchNorm. Defaults to True.
"""
def __init__(self,
backbone: ConfigType,
neck: ConfigType,
bbox_head: ConfigType,
train_cfg: OptConfigType = None,
test_cfg: OptConfigType = None,
data_preprocessor: OptConfigType = None,
init_cfg: OptMultiConfig = None,
use_syncbn: bool = True) -> None:
super().__init__(
backbone=backbone,
neck=neck,
bbox_head=bbox_head,
train_cfg=train_cfg,
test_cfg=test_cfg,
data_preprocessor=data_preprocessor,
init_cfg=init_cfg)
# TODO： Waiting for mmengine support
if use_syncbn and get_world_size() > 1:
torch.nn.SyncBatchNorm.convert_sync_batchnorm(self)
print_log('Using SyncBatchNorm()', 'current')
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