[FSDP] Enable loading prequantized weights with bf16/fp16/fp32 quant_storage #1295
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matthewdouglas
merged commit 3a6911f
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bitsandbytes-foundation:main
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This is a companion PR for huggingface/transformers#32276 to allow us to load prequantized weights with alternate storage. We keep track of metadata we need the same way we would with
Params4bit.__new__after PR #970.This works with models exported with a non-default
quant_storagesuch as this one in NF4 with BF16 storage.@Titus-von-Koeller
@winglian