fix model removal from tmp dir windows (#1028)

* fix model removal from tmp dir windows

* fix second case

* delete  explicit removal compressed_submodel obj as no affect

optimum/exporters/openvino/__main__.py

@@ -432,6 +432,7 @@ class StoreAttr(object):
             for op in submodel.get_ops():
                 if op.get_type_name() == "Constant" and op.get_element_type() in [Type.f16, Type.f32, Type.bf16]:
                     num_parameters += reduce(operator.mul, op.shape, 1)
+                del op
             if num_parameters >= _MAX_UNCOMPRESSED_SIZE:
                 if is_nncf_available():
                     quantization_config = {"bits": 8, "sym": False}
@@ -445,6 +446,8 @@ class StoreAttr(object):
         else:
             quantization_config = ov_config.quantization_config
         if quantization_config is None:
+            del submodel
+            gc.collect()
             continue
 
         if not is_nncf_available():
@@ -457,6 +460,7 @@ class StoreAttr(object):
         compressed_submodel_path = submodel_path.parent / f"{submodel_path.stem}_compressed.xml"
         save_model(submodel, compressed_submodel_path, compress_to_fp16=False)
         del submodel
+        gc.collect()
 
         submodel_path.unlink()
         submodel_path.with_suffix(".bin").unlink()

optimum/exporters/openvino/convert.py

@@ -118,6 +118,8 @@ def _save_model(
     if hasattr(config, "runtime_options"):
         model = _add_runtime_options_to_rt_info(model, config.runtime_options)
     save_model(model, path, compress_to_fp16)
+    del model
+    gc.collect()
 
 
 def export(
@@ -239,6 +241,7 @@ def export_tensorflow(
         config=config,
     )
     del ov_model
+    gc.collect()
     return input_names, output_names, True
 
 
@@ -303,6 +306,7 @@ def export_pytorch_via_onnx(
         config=config,
     )
     del ov_model
+    gc.collect()
     return input_names, output_names, True
 
 

optimum/intel/openvino/utils.py

@@ -22,6 +22,7 @@
 from glob import glob
 from pathlib import Path
 from tempfile import TemporaryDirectory as OrigTemporaryDirectory
+from tempfile import mkdtemp
 from typing import Tuple, Type, Union
 
 import numpy as np
@@ -472,7 +473,7 @@ def onexc(*args):
 # to add behaviour that available only for python3.10+ for older python version
 class TemporaryDirectory(OrigTemporaryDirectory):
     def __init__(self, suffix=None, prefix=None, dir=None, ignore_cleanup_errors=True, *, delete=True):
-        super().__init__(suffix=suffix, prefix=prefix, dir=dir)
+        self.name = mkdtemp(suffix, prefix, dir)
         self._ignore_cleanup_errors = ignore_cleanup_errors
         self._delete = delete
         self._finalizer = weakref.finalize(
@@ -485,13 +486,13 @@ def __init__(self, suffix=None, prefix=None, dir=None, ignore_cleanup_errors=Tru
         )
 
     @classmethod
-    def _cleanup(cls, name, warn_message, ignore_errors=False, delete=True):
+    def _cleanup(cls, name, warn_message, ignore_errors=True, delete=True):
         if delete:
             cls._rmtree(name, ignore_errors=ignore_errors)
             warnings.warn(warn_message, ResourceWarning)
 
     @classmethod
-    def _rmtree(cls, name, ignore_errors=False, repeated=False):
+    def _rmtree(cls, name, ignore_errors=True, repeated=False):
         def _dont_follow_symlinks(func, path, *args):
             # Pass follow_symlinks=False, unless not supported on this platform.
             if func in os.supports_follow_symlinks:
@@ -545,7 +546,7 @@ def onexc(func, path, exc):
                 if not ignore_errors:
                     raise
 
-        _rmtree(name, onexc=onexc)
+        _rmtree(name, onexc=onexc, ignore_errors=ignore_errors)
 
     def cleanup(self):
         if self._finalizer.detach() or os.path.exists(self.name):