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Yanghan Wang authored
Summary: Pull Request resolved: https://github.com/facebookresearch/d2go/pull/453 Previous diffs updated the LRScheduler to public version (eg. https://github.com/facebookresearch/detectron2/pull/4709), this also requires newer version of pytorch-lightning. This diff upgrades the lightning version to 1.8.6, also fixes some deprecated call sites of old lightning versions. - `deepcopy` seems to be supported now, remove `_deepcopy` (there's now not allowed to access `trainer` attributed when it is `None`) - `dataloader_idx` is removed from `on_train_batch_start`. - stop using `_accelerator_connector` (the AcceleratorConnector doesn't have those attributes anymore). - deprecated `on_pretrain_routine_end` -> `on_fit_start` Reviewed By: YanjunChen329 Differential Revision: D42319019 fbshipit-source-id: ba46abbd98da96783e15d187a361fda47dc7d4d6
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