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Please mark any answers that fixed your problems so others can find the solutions.
I cannot use faceswap. I have a problem in the education section. Dfl-128 memory is insufficient says I can not use any of them. I did lowmem and tried to use optimizer saving and started using CPU.
Honestly, I'm not sure, but it is likely to be above 4GB. You can try with lower batch size and enabling "optimizer savings" and "memory saving gradients"