Commits on Feb 6, 2020

1. Checkpoint only at the end of train phases, only run on_start on master …

   Differential Revision: D19770656
   
   fbshipit-source-id: c6bef5b1c7b23940858c72c3a93942205980f2b8

   

   mannatsingh authored and facebook-github-bot committed Feb 6, 2020
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2. Take a separate argument for loading checkpoints, take paths for pret… …

   …rained checkpoints
   
   Summary:
   There are now two arguments for checkpoints -
   - `checkpoint_folder`: This is where checkpoints are saved to. Checkpoints are saved inside a subdirectory (the flow id) within this folder
   - `checkpoint_load_path`: This is where checkpoints are loaded from. This can be a file or a directory.
   
   Note that this means that training will not automatically resume by picking up a checkpoint from the `checkpoint_folder` if the user doesn't specify a `checkpoint_load_path`, but I think explicit is better than implicit in this scenario.
   
   Also, renamed `pretrained_checkpoint_folder` to `pretrained_checkpoint_path` and updated the help string to reflect the fact that this doesn't need to be a folder anymore.
   
   Updated the Getting started tutorial to reflect the changes.
   
   Differential Revision: D19760255
   
   fbshipit-source-id: 7d3e33289b999f261e4dbefd7bc44f4e7b750c10

   

   mannatsingh authored and facebook-github-bot committed Feb 6, 2020
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