[ddp] use named_params and named_buffers explicitly #65181
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This PR changes `state_dict()` during sync to `named_parameters` and `named_buffers` explicitly. the underlying motivation is that, `state_dict()` doesn't necessarily equals to "params + buffers" for all cases, state_dict is used for checkpoint purpose mainly, and params/buffers are used for training, we might have cases that params/buffers be in different forms with state_dict (i.e. state_dict we might want to save in small pieces of tensors while in training we want to concat the tensors together for performance reasons). Differential Revision: [D31007085](https://our.internmc.facebook.com/intern/diff/D31007085/) **NOTE FOR REVIEWERS**: This PR has internal Facebook specific changes or comments, please review them on [Phabricator](https://our.internmc.facebook.com/intern/diff/D31007085/)! [ghstack-poisoned]
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wanchaol
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This PR changes `state_dict()` during sync to `named_parameters` and `named_buffers` explicitly. the underlying motivation is that, `state_dict()` doesn't necessarily equals to "params + buffers" for all cases, state_dict is used for checkpoint purpose mainly, and params/buffers are used for training, we might have cases that params/buffers be in different forms with state_dict (i.e. state_dict we might want to save in small pieces of tensors while in training we want to concat the tensors together for performance reasons). Differential Revision: [D31007085](https://our.internmc.facebook.com/intern/diff/D31007085/) **NOTE FOR REVIEWERS**: This PR has internal Facebook specific changes or comments, please review them on [Phabricator](https://our.internmc.facebook.com/intern/diff/D31007085/)! ghstack-source-id: 138306335 Pull Request resolved: #65181
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Looks good overall, but a couple of test failures that appear to be related.
This PR changes `state_dict()` during sync to `named_parameters` and `named_buffers` explicitly. the underlying motivation is that, `state_dict()` doesn't necessarily equals to "params + buffers" for all cases, state_dict is used for checkpoint purpose mainly, and params/buffers are used for training, we might have cases that params/buffers be in different forms with state_dict (i.e. state_dict we might want to save in small pieces of tensors while in training we want to concat the tensors together for performance reasons). Differential Revision: [D31007085](https://our.internmc.facebook.com/intern/diff/D31007085/) **NOTE FOR REVIEWERS**: This PR has internal Facebook specific changes or comments, please review them on [Phabricator](https://our.internmc.facebook.com/intern/diff/D31007085/)! [ghstack-poisoned]
wanchaol
pushed a commit
that referenced
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Sep 17, 2021
Pull Request resolved: #65181 This PR changes `state_dict()` during sync to `named_parameters` and `named_buffers` explicitly. the underlying motivation is that, `state_dict()` doesn't necessarily equals to "params + buffers" for all cases, state_dict is used for checkpoint purpose mainly, and params/buffers are used for training, we might have cases that params/buffers be in different forms with state_dict (i.e. state_dict we might want to save in small pieces of tensors while in training we want to concat the tensors together for performance reasons). ghstack-source-id: 138378332 Differential Revision: [D31007085](https://our.internmc.facebook.com/intern/diff/D31007085/) **NOTE FOR REVIEWERS**: This PR has internal Facebook specific changes or comments, please review them on [Phabricator](https://our.internmc.facebook.com/intern/diff/D31007085/)!
This PR changes `state_dict()` during sync to `named_parameters` and `named_buffers` explicitly. the underlying motivation is that, `state_dict()` doesn't necessarily equals to "params + buffers" for all cases, state_dict is used for checkpoint purpose mainly, and params/buffers are used for training, we might have cases that params/buffers be in different forms with state_dict (i.e. state_dict we might want to save in small pieces of tensors while in training we want to concat the tensors together for performance reasons). Differential Revision: [D31007085](https://our.internmc.facebook.com/intern/diff/D31007085/) **NOTE FOR REVIEWERS**: This PR has internal Facebook specific changes or comments, please review them on [Phabricator](https://our.internmc.facebook.com/intern/diff/D31007085/)! [ghstack-poisoned]
wanchaol
pushed a commit
that referenced
this pull request
Sep 22, 2021
Pull Request resolved: #65181 This PR changes `state_dict()` during sync to `named_parameters` and `named_buffers` explicitly. the underlying motivation is that, `state_dict()` doesn't necessarily equals to "params + buffers" for all cases, state_dict is used for checkpoint purpose mainly, and params/buffers are used for training, we might have cases that params/buffers be in different forms with state_dict (i.e. state_dict we might want to save in small pieces of tensors while in training we want to concat the tensors together for performance reasons). ghstack-source-id: 138701159 Differential Revision: [D31007085](https://our.internmc.facebook.com/intern/diff/D31007085/) **NOTE FOR REVIEWERS**: This PR has internal Facebook specific changes or comments, please review them on [Phabricator](https://our.internmc.facebook.com/intern/diff/D31007085/)!
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Thanks yeah just fixed them, not detaching gradients in the last try, should be ready. |
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This pull request has been merged in 2f67579. |
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Stack from ghstack:
This PR changes
state_dict()during sync tonamed_parametersandnamed_buffersexplicitly. the underlying motivation is that,state_dict()doesn't necessarily equals to "params + buffers" for all cases, state_dict is used for checkpoint purpose mainly, and params/buffers are used for training, we might have cases that params/buffers be in different forms with state_dict (i.e. state_dict we might want to save in small pieces of tensors while in training we want to concat the tensors together for performance reasons).Differential Revision: D31007085
NOTE FOR REVIEWERS: This PR has internal Facebook specific changes or comments, please review them on Phabricator!
cc @pietern @mrshenli @pritamdamania87 @zhaojuanmao @satgera @rohan-varma @gqchen @aazzolini @osalpekar @jiayisuse @SciPioneer @H-Huang @gcramer23