test.py

import argparse
import os
import os.path as osp
import random
import uuid

import mmcv
import numpy as np
import torch
from mmcv import Config, DictAction
from mmcv.cnn import fuse_conv_bn
from mmcv.parallel import MMDataParallel, MMDistributedDataParallel
from mmcv.runner import get_dist_info, init_dist, load_checkpoint
from models import *  # noqa
from models.datasets import build_dataset

from mmpose.apis import multi_gpu_test, single_gpu_test
from mmpose.core import wrap_fp16_model
from mmpose.datasets import build_dataloader
from mmpose.models import build_posenet


def parse_args():
    parser = argparse.ArgumentParser(description='mmpose test model')
    parser.add_argument('config', default=None, help='test config file path')
    parser.add_argument('checkpoint', default=None, help='checkpoint file')
    parser.add_argument('--out', help='output result file')
    parser.add_argument(
        '--fuse-conv-bn',
        action='store_true',
        help='Whether to fuse conv and bn, this will slightly increase the inference speed')
    parser.add_argument(
        '--eval',
        default=None,
        nargs='+',
        help='evaluation metric, which depends on the dataset,'
        ' e.g., "mAP" for MSCOCO')
    parser.add_argument(
        '--permute_keypoints',
        action='store_true',
        help='whether to randomly permute keypoints')
    parser.add_argument(
        '--gpu_collect',
        action='store_true',
        help='whether to use gpu to collect results')
    parser.add_argument('--tmpdir', help='tmp dir for writing some results')
    parser.add_argument(
        '--cfg-options',
        nargs='+',
        action=DictAction,
        default={},
        help='override some settings in the used config, the key-value pair '
        'in xxx=yyy format will be merged into config file. For example, '
        "'--cfg-options model.backbone.depth=18 model.backbone.with_cp=True'")
    parser.add_argument(
        '--launcher',
        choices=['none', 'pytorch', 'slurm', 'mpi'],
        default='none',
        help='job launcher')
    parser.add_argument('--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 merge_configs(cfg1, cfg2):
    # Merge cfg2 into cfg1
    # Overwrite cfg1 if repeated, ignore if value is None.
    cfg1 = {} if cfg1 is None else cfg1.copy()
    cfg2 = {} if cfg2 is None else cfg2
    for k, v in cfg2.items():
        if v:
            cfg1[k] = v
    return cfg1


def main():
    random.seed(0)
    np.random.seed(0)
    torch.manual_seed(0)
    uuid.UUID(int=0)

    args = parse_args()

    cfg = Config.fromfile(args.config)

    if args.cfg_options is not None:
        cfg.merge_from_dict(args.cfg_options)
    # set cudnn_benchmark
    if cfg.get('cudnn_benchmark', False):
        torch.backends.cudnn.benchmark = True
    # cfg.model.pretrained = None
    cfg.data.test.test_mode = True

    args.work_dir = osp.join('./work_dirs',
                             osp.splitext(osp.basename(args.config))[0])
    mmcv.mkdir_or_exist(osp.abspath(args.work_dir))

    # init distributed env first, since logger depends on the dist info.
    if args.launcher == 'none':
        distributed = False
    else:
        distributed = True
        init_dist(args.launcher, **cfg.dist_params)

    # build the dataloader
    dataset = build_dataset(cfg.data.test, dict(test_mode=True))
    dataloader_setting = dict(
        samples_per_gpu=1,
        workers_per_gpu=cfg.data.get('workers_per_gpu', 12),
        dist=distributed,
        shuffle=False,
        drop_last=False)
    dataloader_setting = dict(dataloader_setting,
                              **cfg.data.get('test_dataloader', {}))
    data_loader = build_dataloader(dataset, **dataloader_setting)

    # build the model and load checkpoint
    model = build_posenet(cfg.model)
    fp16_cfg = cfg.get('fp16', None)
    if fp16_cfg is not None:
        wrap_fp16_model(model)
    load_checkpoint(model, args.checkpoint, map_location='cpu')

    if args.fuse_conv_bn:
        model = fuse_conv_bn(model)

    if not distributed:
        model = MMDataParallel(model, device_ids=[0])
        outputs = single_gpu_test(model, data_loader)
    else:
        model = MMDistributedDataParallel(
            model.cuda(),
            device_ids=[torch.cuda.current_device()],
            broadcast_buffers=False)
        outputs = multi_gpu_test(model, data_loader, args.tmpdir, args.gpu_collect)

    rank, _ = get_dist_info()
    eval_config = cfg.get('evaluation', {})
    eval_config = merge_configs(eval_config, dict(metric=args.eval))

    if rank == 0:
        if args.out:
            print(f'\nwriting results to {args.out}')
            mmcv.dump(outputs, args.out)

        results = dataset.evaluate(outputs, **eval_config)
        print('\n')
        for k, v in sorted(results.items()):
            print(f'{k}: {v}')

        # save testing log
        test_log = "./work_dirs/testing_log.txt"
        with open(test_log, 'a') as f:
            f.write("**  config_file: " + args.config + "\t checkpoint: " + args.checkpoint + "\t \n")
            for k, v in sorted(results.items()):
                f.write(f'\t {k}: {v}'+'\n')
            f.write("********************************************************************\n")
        
if __name__ == '__main__':
    main()