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Update comfy/ops.py 

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Florian Agsteiner 2026-08-12 15:43:40 +02:00 committed by GitHub
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comfy/ops.py
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@ -1203,7 +1203,7 @@ def _load_quantized_module(module, super_load, state_dict, prefix, local_metadat
raise ValueError(f"Missing W4A8 group scale (weight_s_rel) for layer {layer_name}")
if scale.dtype == torch.uint8:
scale = scale.view(torch.float8_e4m3fn)
if comfy.model_management.get_torch_device().type == "mps":
if device.type == "mps":
# MPS has no fp8 casts at all, so the eager dequant path dies on
# s_rel.float(). fp32 is the only other dtype the eager backend
# declares for s_rel, so fp16 is not an option here.