Add option to shift noise schedules when changing resolution #153
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jazcollins
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Jul 2, 2024
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jazcollins
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I had one qq about why we choose base_dim=32 as default. I also wish we could infer the shift resolution from some other place (instead of having to set it explicitly, bc I can imagine forgetting to set that in an eval run and using the wrong resolution or something) but I don't see how that is possible, so this makes sense! Overall looks good to me!
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This PR adds an option to set
scheduler_shift_resolutionto SD2 and SDXL models to account for differing train resolutions using the technique from https://arxiv.org/abs/2301.11093