Asynchronous Versus Synchronous Execution PyTorch Developer podcast

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Asynchronous versus synchronous execution

4+ y ago 15:03

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内容由PyTorch, Edward Yang, and Team PyTorch提供。所有播客内容（包括剧集、图形和播客描述）均由 PyTorch, Edward Yang, and Team PyTorch 或其播客平台合作伙伴直接上传和提供。如果您认为有人在未经您许可的情况下使用您的受版权保护的作品，您可以按照此处概述的流程进行操作https://zh.player.fm/legal。

CUDA is asynchronous, CPU is synchronous. Making them play well together can be one of the more thorny and easy to get wrong aspects of the PyTorch API. I talk about why non_blocking is difficult to use correctly, a hypothetical "asynchronous CPU" device which would help smooth over some of the API problems and also why it used to be difficult to implement async CPU (but it's not hard anymore!) At the end, I also briefly talk about how async/sync impedance can also show up in unusual places, namely the CUDA caching allocator.

Further reading.

CUDA semantics which discuss non_blocking somewhat https://pytorch.org/docs/stable/notes/cuda.html
Issue requesting async cpu https://github.com/pytorch/pytorch/issues/44343

… continue reading

83集单集

#Tech #PyTorch #Edward Yang #Team PyTorch #Deep Learning #Machine Learning

Artwork

Asynchronous versus synchronous execution

PyTorch Developer Podcast

26 subscribers

published 4+ y ago

分享

MP3•单集首页

内容由PyTorch, Edward Yang, and Team PyTorch提供。所有播客内容（包括剧集、图形和播客描述）均由 PyTorch, Edward Yang, and Team PyTorch 或其播客平台合作伙伴直接上传和提供。如果您认为有人在未经您许可的情况下使用您的受版权保护的作品，您可以按照此处概述的流程进行操作https://zh.player.fm/legal。

CUDA is asynchronous, CPU is synchronous. Making them play well together can be one of the more thorny and easy to get wrong aspects of the PyTorch API. I talk about why non_blocking is difficult to use correctly, a hypothetical "asynchronous CPU" device which would help smooth over some of the API problems and also why it used to be difficult to implement async CPU (but it's not hard anymore!) At the end, I also briefly talk about how async/sync impedance can also show up in unusual places, namely the CUDA caching allocator.

Further reading.

CUDA semantics which discuss non_blocking somewhat https://pytorch.org/docs/stable/notes/cuda.html
Issue requesting async cpu https://github.com/pytorch/pytorch/issues/44343

… continue reading

83集单集

#Tech #PyTorch #Edward Yang #Team PyTorch #Deep Learning #Machine Learning

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