# Copyright (c) 2021-2022, NVIDIA CORPORATION. All rights reserved.
#
# 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.
import os
from nvflare.apis.resource_manager_spec import ResourceConsumerSpec
[docs]class GPUResourceConsumer(ResourceConsumerSpec):
def __init__(self, gpu_resource_key="gpu"):
super().__init__()
self.gpu_resource_key = gpu_resource_key
os.environ["CUDA_DEVICE_ORDER"] = "PCI_BUS_ID"
[docs] def consume(self, resources: dict):
gpu_numbers = []
if self.gpu_resource_key in resources:
gpu_numbers = [str(x) for x in resources[self.gpu_resource_key]]
os.environ["CUDA_VISIBLE_DEVICES"] = ",".join(gpu_numbers)