Initial commit for OpenVINO Windows support

Author: suryasidd

backends/openvino/README.md

@@ -53,12 +53,20 @@ Before you begin, ensure you have openvino installed and configured on your syst
 
 2. Extract the release package from the archive and set the environment variables.
 
+   For Linux
    ```bash
    tar -zxf openvino_toolkit_<your_release_configuration>.tgz
    cd openvino_toolkit_<your_release_configuration>
    source setupvars.sh
    ```
 
+   For Windows (Powershell)
+   ```powershell
+   tar -zxf openvino_toolkit_<your_release_configuration>.zip
+   cd openvino_toolkit_<your_release_configuration>
+   . ./setupvars.ps1
+   ```
+
 ### (Optional) Build OpenVINO from Source
 
 ```bash
@@ -85,10 +93,18 @@ Follow the steps below to setup your build environment:
 
 1. **Create a Virtual Environment**
 - Create a virtual environment and activate it by executing the commands below.
+   For Linux
    ```bash
    python -m venv env
    source env/bin/activate
    ```
+
+   For Windows (Powershell)
+   ```powershell
+   python -m venv env
+   env/Scripts/activate
+   ```
+   
 2. **Clone ExecuTorch Repository from Github**
 - Clone Executorch repository by executing the command below.
    ```bash

backends/openvino/runtime/OpenvinoBackend.cpp

@@ -181,21 +181,21 @@ void OpenvinoBackend::destroy(exr::DelegateHandle* handle) const {
 }
 
 ov::element::Type OpenvinoBackend::convert_to_openvino_type(
-    exa::ScalarType scalar_type) const {
+    exat::ScalarType scalar_type) const {
   switch (scalar_type) {
-    case exa::ScalarType::Float:
+    case exat::ScalarType::Float:
       return ov::element::f32;
-    case exa::ScalarType::Half:
+    case exat::ScalarType::Half:
       return ov::element::f16;
-    case exa::ScalarType::Int:
+    case exat::ScalarType::Int:
       return ov::element::i32;
-    case exa::ScalarType::Char:
+    case exat::ScalarType::Char:
       return ov::element::i8;
-    case exa::ScalarType::Byte:
+    case exat::ScalarType::Byte:
       return ov::element::u8;
-    case exa::ScalarType::Long:
+    case exat::ScalarType::Long:
       return ov::element::i64;
-    case exa::ScalarType::Bool:
+    case exat::ScalarType::Bool:
       return ov::element::boolean;
     default:
       throw std::runtime_error("Unsupported scalar type");

backends/openvino/runtime/OpenvinoBackend.h

@@ -18,10 +18,10 @@
 #include <executorch/runtime/core/exec_aten/util/dim_order_util.h>
 #include <executorch/runtime/core/exec_aten/util/scalar_type_util.h>
 
+using namespace std;
 namespace exr = executorch::runtime;
-namespace exa = executorch::aten;
+namespace exat = executorch::aten;
 
-using namespace std;
 
 namespace executorch {
 namespace backends {
@@ -49,7 +49,7 @@ class OpenvinoBackend final : public ::exr::BackendInterface {
   void destroy(exr::DelegateHandle* handle) const override;
 
  private:
-  ov::element::Type convert_to_openvino_type(exa::ScalarType scalar_type) const;
+  ov::element::Type convert_to_openvino_type(exat::ScalarType scalar_type) const;
 };
 
 } // namespace openvino