pytorch / pytorch/tutorials

Seems this kind of mechanism of neural style transfer does not work for multi-gpu training.

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Description

In neural style transfer tutorial, we just get the content layer and style layer as instances and put them in lists. Then in the main script, we do like this:
https://github.com/pytorch/tutorials/blob/beb7e27642808391bf31c97aae6d5ec0fc3a920f/advanced_source/neural_style_tutorial.py#L436-L439

It should not work when we perform multi-gpu training, although it dose not mean much for such task. However, for someone who want to add constraint on the intermediate layers of one model, they are likely to refer this kind of implementation, which is not satisfying.

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Research direction

Start with advanced_source/neural_style_tutorial.py around lines 436-439 and inspect how the content and style layer instances are collected and used. Reproduce or verify the behavior with multi-GPU training, then determine the appropriate correction for intermediate-layer constraints. Done should mean the tutorial mechanism works as intended across multiple GPUs, with behavior covered by an appropriate test or documented limitation.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
distributed-systems, machine-learning
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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