Add MLU Support. (#12629)

* Add MLU Support.

* fix comment.

* rename is_mlu_available to is_torch_mlu_available

* Apply style fixes

---------
Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

src/diffusers/utils/__init__.py

@@ -108,6 +108,7 @@ from .import_utils import (
     is_tensorboard_available,
     is_timm_available,
     is_torch_available,
+    is_torch_mlu_available,
     is_torch_npu_available,
     is_torch_version,
     is_torch_xla_available,

src/diffusers/utils/import_utils.py

@@ -192,6 +192,7 @@ except importlib_metadata.PackageNotFoundError:
 
 _torch_xla_available, _torch_xla_version = _is_package_available("torch_xla")
 _torch_npu_available, _torch_npu_version = _is_package_available("torch_npu")
+_torch_mlu_available, _torch_mlu_version = _is_package_available("torch_mlu")
 _transformers_available, _transformers_version = _is_package_available("transformers")
 _hf_hub_available, _hf_hub_version = _is_package_available("huggingface_hub")
 _kernels_available, _kernels_version = _is_package_available("kernels")
@@ -243,6 +244,10 @@ def is_torch_npu_available():
     return _torch_npu_available
 
 
+def is_torch_mlu_available():
+    return _torch_mlu_available
+
+
 def is_flax_available():
     return _flax_available
 

src/diffusers/utils/torch_utils.py

@@ -20,7 +20,7 @@ import os
 from typing import Callable, Dict, List, Optional, Tuple, Union
 
 from . import logging
-from .import_utils import is_torch_available, is_torch_npu_available, is_torch_version
+from .import_utils import is_torch_available, is_torch_mlu_available, is_torch_npu_available, is_torch_version
 
 
 if is_torch_available():
@@ -286,6 +286,8 @@ def get_device():
         return "xpu"
     elif torch.backends.mps.is_available():
         return "mps"
+    elif is_torch_mlu_available():
+        return "mlu"
     else:
         return "cpu"