Megvii-BaseDetection / Megvii-BaseDetection/YOLOX
Stick at yolox.core.trainer:152 - init prefetcher
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Description
When I run the algorithm, if often sticks at this point
2021-08-03 07:55:34 | INFO | yolox.core.trainer:152 - init prefetcher, this might take one minute or less...
And I debug this approach, find the program stopped at random picture. I have 2000 pics for train, It may stick at 1720/2000 or 1080/2000, and never go forward even waiting for several hours.
I have tried to change the data_num_workers to 0/4/16, but it didn't work
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First steps
- Read the whole issue, then the project's contributing guide.
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Research direction
Start at yolox.core.trainer:152 and inspect the prefetcher and data-loading path around the reported init message. Reproduce the stall with the 2,000-image training set while varying data_num_workers; done means training proceeds past image-loading without hanging.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- python
- Domain
- machine-learning
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100