Cuda Out of memory with DKMPalettizer

[coleridge72]

❓Question

I'm trying to run training-time palletization with n_bits=4.
I always get an out-of-memory error on the first step (despite reducing batch size down to one.)

A few details:

• I'm quantising the stable diffusion v1.5 model.
• I have 24GB of GPU RAM.

Are there any tips to avoid this?

    config = DKMPalettizerConfig(global_config=ModuleDKMPalettizerConfig(n_bits=4))
    palettizer = DKMPalettizer(unet, config)
    unet = palettizer.prepare(inplace=True)
    unet, optimizer, lr_scheduler = accelerator.prepare(unet, optimizer, lr_scheduler)

[YifanShenSZ]

@pulkital Any thoughts?