n their specific submodule has its forward
method called. Offloading happens on a submodule basis. Memory savings are higher than with
enable_model_cpu_offload, but performance is lower.  enable_xformers_memory_efficient_attention  < source > ( attention_op: Optional = None  )   Parameters   attention_op (Callable, optional) —
Override the default None operator for use as op argument to the
memory_efficient_attention()
function of xFormers.    