lightning/tests/base/model_utilities.py

41 lines
1.3 KiB
Python

# Copyright The PyTorch Lightning team.
#
# 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.
from torch.utils.data import DataLoader
from tests.base.datasets import TrialMNIST
class ModelTemplateData:
def dataloader(self, train: bool, num_samples: int = 100):
dataset = TrialMNIST(root=self.data_root, train=train, num_samples=num_samples, download=True)
loader = DataLoader(
dataset=dataset,
batch_size=self.batch_size,
num_workers=0,
shuffle=train,
)
return loader
class ModelTemplateUtils:
def get_output_metric(self, output, name):
if isinstance(output, dict):
val = output[name]
else: # if it is 2level deep -> per dataloader and per batch
val = sum(out[name] for out in output) / len(output)
return val