| # coding=utf-8 | |
| # Copyright (c) 2020, 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 torch | |
| def print_rank_0(message): | |
| """If distributed is initialized, print only on rank 0.""" | |
| if torch.distributed.is_initialized(): | |
| if torch.distributed.get_rank() == 0: | |
| print(message, flush=True) | |
| else: | |
| print(message, flush=True) | |