Megvii-BaseDetection / Megvii-BaseDetection/YOLOX
How to specify the cuda device in multiple GPU machine?
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Description
My machine has two GPU cards. I want to train the model with only the cuda:1.
I have set the CUDA_VISIBLE_DEVICES=1. But the occupy_mem function still calculate the mem of device cuda:0.
https://github.com/Megvii-BaseDetection/YOLOX/blob/3bfac8f843791f007cb9cc7733e6e831f753e7d7/yolox/core/trainer.py#L161-L162
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Research direction
Read yolox/core/trainer.py around lines 161-162 first, then inspect how the selected CUDA device is represented when CUDA_VISIBLE_DEVICES is set. Reproduce the two-GPU case and verify that occupy_mem reports the intended device without affecting training.
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Assessment
- Tech stack
- python, pytorch
- Domain
- machine-learning
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 25/100