[Fix] destory pg for megatorn trainer on cleanup#761
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Signed-off-by: Gene Der Su <e870252314@gmail.com>
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Pull request overview
This PR updates the Megatron backend trainer cleanup path to explicitly tear down the active torch.distributed default process group during trainer shutdown, preventing lingering distributed resources after training completes.
Changes:
- Add
dist.destroy_process_group()toMegatronBaseTrainer.cleanup()whentorch.distributedis initialized.
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| # clean up torch pg resources on exit | ||
| if dist.is_initialized(): | ||
| dist.destroy_process_group() |
Signed-off-by: Gene Der Su <e870252314@gmail.com>
Signed-off-by: Gene Der Su <e870252314@gmail.com>
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| # clean up torch pg resources on exit | ||
| if dist.is_initialized(): | ||
| log_rank_0("[MegatronBaseTrainer] calling dist.destroy_process_group()") | ||
| try: | ||
| dist.destroy_process_group() |
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