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mindspore/model_zoo/official/cv/mobilenetv1/eval.py

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# Copyright 2020 Huawei Technologies Co., Ltd
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# ============================================================================
"""eval mobilenet_v1."""
import os
import argparse
from mindspore import context
from mindspore.common import set_seed
from mindspore.nn.loss import SoftmaxCrossEntropyWithLogits
from mindspore.train.model import Model
from mindspore.train.serialization import load_checkpoint, load_param_into_net
from src.CrossEntropySmooth import CrossEntropySmooth
from src.mobilenet_v1 import mobilenet_v1 as mobilenet
parser = argparse.ArgumentParser(description='Image classification')
parser.add_argument('--dataset', type=str, default=None, help='Dataset, either cifar10 or imagenet2012')
parser.add_argument('--checkpoint_path', type=str, default=None, help='Checkpoint file path')
parser.add_argument('--dataset_path', type=str, default=None, help='Dataset path')
parser.add_argument('--device_target', type=str, default='Ascend', help='Device target')
args_opt = parser.parse_args()
set_seed(1)
if args_opt.dataset == 'cifar10':
from src.config import config1 as config
from src.dataset import create_dataset1 as create_dataset
else:
from src.config import config2 as config
from src.dataset import create_dataset2 as create_dataset
if __name__ == '__main__':
target = args_opt.device_target
# init context
context.set_context(mode=context.GRAPH_MODE, device_target=target, save_graphs=False)
if target != "GPU":
device_id = int(os.getenv('DEVICE_ID'))
context.set_context(device_id=device_id)
# create dataset
dataset = create_dataset(dataset_path=args_opt.dataset_path, do_train=False, batch_size=config.batch_size,
target=target)
step_size = dataset.get_dataset_size()
# define net
net = mobilenet(class_num=config.class_num)
# load checkpoint
param_dict = load_checkpoint(args_opt.checkpoint_path)
load_param_into_net(net, param_dict)
net.set_train(False)
# define loss, model
if args_opt.dataset == "imagenet2012":
if not config.use_label_smooth:
config.label_smooth_factor = 0.0
loss = CrossEntropySmooth(sparse=True, reduction='mean',
smooth_factor=config.label_smooth_factor, num_classes=config.class_num)
else:
loss = SoftmaxCrossEntropyWithLogits(sparse=True, reduction='mean')
# define model
model = Model(net, loss_fn=loss, metrics={'top_1_accuracy', 'top_5_accuracy'})
# eval model
res = model.eval(dataset)
print("result:", res, "ckpt=", args_opt.checkpoint_path)