[Hardware][Intel] OpenVINO vLLM backend (#5379)

vllm/utils.py

@@ -176,6 +176,15 @@ def is_cpu() -> bool:
         return False
 
 
+@lru_cache(maxsize=None)
+def is_openvino() -> bool:
+    from importlib.metadata import PackageNotFoundError, version
+    try:
+        return "openvino" in version("vllm")
+    except PackageNotFoundError:
+        return False
+
+
 @lru_cache(maxsize=None)
 def is_neuron() -> bool:
     try:
@@ -546,7 +555,7 @@ def is_pin_memory_available() -> bool:
     elif is_neuron():
         print_warning_once("Pin memory is not supported on Neuron.")
         return False
-    elif is_cpu():
+    elif is_cpu() or is_openvino():
         return False
     return True