# Modified from https://github.com/open-mmlab/mmgeneration import warnings # suppress warnings from MMCV about optional dependencies warnings.filterwarnings( 'ignore', category=UserWarning, message=r'^Fail to import ``MultiScaleDeformableAttention`` from ``mmcv\.ops\.multi_scale_deform_attn``.*', module=r'^mmcv\.cnn\.bricks\.transformer$', ) import argparse import datetime import copy import multiprocessing as mp import os import os.path as osp import platform import time import warnings import cv2 import mmcv import torch torch.backends.cuda.matmul.allow_tf32 = True torch.backends.cudnn.allow_tf32 = True from mmcv import Config, DictAction from mmcv.runner import get_dist_info, init_dist from mmcv.utils import get_git_hash from mmgen.apis import set_random_seed from mmgen.datasets import build_dataset from mmgen.models import build_model from mmgen.utils import collect_env, get_root_logger from lakonlab.apis import train_model from lakonlab import __version__ cv2.setNumThreads(0) def parse_args(): parser = argparse.ArgumentParser(description='Train a model') parser.add_argument('config', help='train config file path') parser.add_argument('--work-dir', help='the dir to save logs and models') parser.add_argument( '--resume-from', help='the checkpoint file to resume from') parser.add_argument( '--no-validate', action='store_true', help='whether not to evaluate the checkpoint during training') group_gpus = parser.add_mutually_exclusive_group() group_gpus.add_argument( '--gpus', type=int, help='(Deprecated, please use --gpu-id) number of gpus to use ' '(only applicable to non-distributed training)') group_gpus.add_argument( '--gpu-ids', type=int, nargs='+', help='(Deprecated, please use --gpu-id) ids of gpus to use ' '(only applicable to non-distributed training)') group_gpus.add_argument( '--gpu-id', type=int, default=0, help='id of gpu to use ' '(only applicable to non-distributed training)') parser.add_argument('--seed', type=int, default=2021, help='random seed') parser.add_argument( '--diff_seed', action='store_true', help='Whether or not set different seeds for different ranks') parser.add_argument( '--deterministic', action='store_true', help='whether to set deterministic options for CUDNN backend.') parser.add_argument( '--cfg-options', nargs='+', action=DictAction, help='override some settings in the used config, the key-value pair ' 'in xxx=yyy format will be merged into config file.') parser.add_argument( '--launcher', choices=['none', 'pytorch', 'slurm', 'mpi'], default='none', help='job launcher') parser.add_argument('--local-rank', '--local_rank', type=int, default=0) args = parser.parse_args() if 'LOCAL_RANK' not in os.environ: os.environ['LOCAL_RANK'] = str(args.local_rank) return args def setup_multi_processes(cfg): # set multi-process start method as `fork` to speed up the training if platform.system() != 'Windows': mp_start_method = cfg.get('mp_start_method', 'fork') try: mp.set_start_method(mp_start_method) except RuntimeError: pass # disable opencv multithreading to avoid system being overloaded opencv_num_threads = cfg.get('opencv_num_threads', 0) cv2.setNumThreads(opencv_num_threads) # setup OMP threads # This code is referred from https://github.com/pytorch/pytorch/blob/master/torch/distributed/run.py # noqa if ('OMP_NUM_THREADS' not in os.environ and cfg.data.workers_per_gpu > 1): omp_num_threads = 1 warnings.warn( f'Setting OMP_NUM_THREADS environment variable for each process ' f'to be {omp_num_threads} in default, to avoid your system being ' f'overloaded, please further tune the variable for optimal ' f'performance in your application as needed.') os.environ['OMP_NUM_THREADS'] = str(omp_num_threads) # setup MKL threads if 'MKL_NUM_THREADS' not in os.environ and cfg.data.workers_per_gpu > 1: mkl_num_threads = 1 warnings.warn( f'Setting MKL_NUM_THREADS environment variable for each process ' f'to be {mkl_num_threads} in default, to avoid your system being ' f'overloaded, please further tune the variable for optimal ' f'performance in your application as needed.') os.environ['MKL_NUM_THREADS'] = str(mkl_num_threads) def main(): args = parse_args() cfg = Config.fromfile(args.config) if args.cfg_options is not None: cfg.merge_from_dict(args.cfg_options) setup_multi_processes(cfg) # import modules from string list. if cfg.get('custom_imports', None): from mmcv.utils import import_modules_from_strings import_modules_from_strings(**cfg['custom_imports']) # set cudnn_benchmark if cfg.get('cudnn_benchmark', False): torch.backends.cudnn.benchmark = True # work_dir is determined in this priority: CLI > segment in file > filename if args.work_dir is not None: # update configs according to CLI args if args.work_dir is not None cfg.work_dir = args.work_dir elif cfg.get('work_dir', None) is None: # use config filename as default work_dir if cfg.work_dir is None cfg.work_dir = osp.join('./work_dirs', osp.splitext(osp.basename(args.config))[0]) if args.resume_from is not None: cfg.resume_from = args.resume_from if args.gpus is not None: cfg.gpu_ids = range(1) warnings.warn('`--gpus` is deprecated because we only support ' 'single GPU mode in non-distributed training. ' 'Use `gpus=1` now.') if args.gpu_ids is not None: cfg.gpu_ids = args.gpu_ids[0:1] warnings.warn('`--gpu-ids` is deprecated, please use `--gpu-id`. ' 'Because we only support single GPU mode in ' 'non-distributed training. Use the first GPU ' 'in `gpu_ids` now.') if args.gpus is None and args.gpu_ids is None: cfg.gpu_ids = [args.gpu_id] # init distributed env first, since logger depends on the dist info. if args.launcher == 'none': distributed = False else: distributed = True init_dist( args.launcher, timeout=datetime.timedelta(seconds=3600), **cfg.dist_params) # re-set gpu_ids with distributed training mode _, world_size = get_dist_info() cfg.gpu_ids = range(world_size) # create work_dir mmcv.mkdir_or_exist(osp.abspath(cfg.work_dir)) # dump config cfg.dump(osp.join(cfg.work_dir, osp.basename(args.config))) # init the logger before other steps timestamp = time.strftime('%Y%m%d_%H%M%S', time.localtime()) log_file = osp.join(cfg.work_dir, f'{timestamp}.log') logger = get_root_logger(log_file=log_file, log_level=cfg.log_level) # init the meta dict to record some important information such as # environment info and seed, which will be logged meta = dict() # log env info try: env_info_dict = collect_env() env_info = '\n'.join([(f'{k}: {v}') for k, v in env_info_dict.items()]) dash_line = '-' * 60 + '\n' logger.info('Environment info:\n' + dash_line + env_info + '\n' + dash_line) meta['env_info'] = env_info except Exception as e: logger.warning(f'Error in collecting environment info: {e}') meta['config'] = cfg.pretty_text # log some basic info logger.info(f'Distributed training: {distributed}') logger.info(f'Config:\n{cfg.pretty_text}') # set random seeds if args.seed is not None: logger.info(f'Set random seed to {args.seed}, ' f'deterministic: {args.deterministic}, ' f'use_rank_shift: {args.diff_seed}') set_random_seed( args.seed, deterministic=args.deterministic, use_rank_shift=args.diff_seed) cfg.seed = args.seed meta['seed'] = args.seed meta['exp_name'] = osp.basename(args.config) model = build_model( cfg.model, train_cfg=cfg.train_cfg, test_cfg=cfg.test_cfg) datasets = [build_dataset(cfg.data.train)] if len(cfg.workflow) == 2: val_dataset = copy.deepcopy(cfg.data.val) val_dataset.pipeline = cfg.data.val.pipeline datasets.append(build_dataset(val_dataset)) if cfg.checkpoint_config is not None: # save lakonlab version, config file content and class names in checkpoints as meta data cfg.checkpoint_config.meta = dict(lakonlab_version=__version__ + get_git_hash()[:7]) train_model( model, datasets, cfg, distributed=distributed, validate=(not args.no_validate), timestamp=timestamp, meta=meta) if __name__ == '__main__': main()