45 lines
1.5 KiB
Python
45 lines
1.5 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 pytorch_lightning.cluster_environments import ClusterEnvironment
|
|
from pytorch_lightning.utilities.exceptions import MisconfigurationException
|
|
|
|
|
|
class PluginConnector:
|
|
|
|
def __init__(self, trainer):
|
|
self.trainer = trainer
|
|
self.plugins = []
|
|
self.cloud_environment = None
|
|
|
|
def on_trainer_init(self, plugins):
|
|
self.plugins = plugins
|
|
if self.plugins is None:
|
|
self.plugins = []
|
|
|
|
self.__attach_cluster()
|
|
|
|
def __attach_cluster(self, limit=1):
|
|
num_clusters = 0
|
|
for plugin in self.plugins:
|
|
if isinstance(plugin, ClusterEnvironment):
|
|
|
|
# count the clusters
|
|
num_clusters += 1
|
|
if num_clusters > limit:
|
|
m = f'you can only use one cluster environment in plugins. You passed in: {num_clusters}'
|
|
raise MisconfigurationException(m)
|
|
|
|
# set the cluster
|
|
self.cloud_environment = plugin
|