Such errors always occur.总是出现这样的错误。

[liuweikaiphoto]

No operator found for memory_efficient_attention_forward with inputs: query : shape=(40, 256, 1, 64) (torch.bfloat16) key : shape=(40, 256, 1, 64) (torch.bfloat16) value : shape=(40, 256, 1, 64) (torch.bfloat16) attn_bias : <class 'NoneType'> p : 0.0 decoderF is not supported because: xFormers wasn't build with CUDA support attn_bias type is <class 'NoneType'> operator wasn't built - see python -m xformers.info for more info [email protected] is not supported because: xFormers wasn't build with CUDA support operator wasn't built - see python -m xformers.info for more info cutlassF is not supported because: xFormers wasn't build with CUDA support operator wasn't built - see python -m xformers.info for more info smallkF is not supported because: max(query.shape[-1] != value.shape[-1]) > 32 xFormers wasn't build with CUDA support dtype=torch.bfloat16 (supported: {torch.float32}) operator wasn't built - see python -m xformers.info for more info unsupported embed per head: 64