Provide load_seed_checkpoint_only option #1800
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Seed checkpoint loading requires checkpoint.enable to be True. However, when using seed checkpoints, users typically don't want to save subsequent checkpoints since seed checkpoints serve verification purposes only.
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Had one comment. Would be helpful to also update https://github.com/pytorch/torchtitan/blob/main/docs/debugging.md#seed-checkpoint-based-reproducibility accordingly.
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Seed checkpoint loading requires checkpoint.enable to be True. However, when using seed checkpoints, users typically don't want to save subsequent checkpoints since seed checkpoints serve verification purposes only.