add ipex-llm-init.bat for Windows (#11082)

* add ipex-llm-init.bat for Windows

* update setup.py

python/llm/scripts/ipex-llm-init.bat

@@ -0,0 +1,111 @@
+@echo off
+setlocal
+
+:: Usage #############################
+:: ipex-llm-init.bat
+:: Example:
+:: ipex-llm-init.bat --gpu --device Arc
+:: ######################################
+
+REM Call the argument parsing function
+call :parse-args %*
+
+:: Initialize default values
+set ENABLE_GPU=0
+set DEVICE=""
+
+:enable-gpu
+SET ENABLE_GPU=1
+GOTO :eof
+
+:disable-gpu
+SET ENABLE_GPU=0
+CALL :unset-gpu-envs
+GOTO :eof
+
+:unset-gpu-envs
+SET SYCL_CACHE_PERSISTENT=
+SET BIGDL_LLM_XMX_DISABLED=
+GOTO :eof
+
+:display-var
+echo +++++ Env Variables +++++
+echo Exported:
+echo     ENABLE_GPU             = %ENABLE_GPU%
+echo     SYCL_CACHE_PERSISTENT  = %SYCL_CACHE_PERSISTENT%
+echo     BIGDL_LLM_XMX_DISABLED = %BIGDL_LLM_XMX_DISABLED%
+echo +++++++++++++++++++++++++
+GOTO :eof
+
+:display-help
+echo Usage: call ipex-llm-init.bat [--option]
+echo.
+echo ipex-llm-init is a tool to automatically configure and run the subcommand under
+echo environment variables for accelerating IPEX-LLM.
+echo.
+echo Optional options:
+echo     -h, --help                Display this help message and exit.
+echo     -g, --gpu                 Enable GPU support
+echo     --device ^<device_type^>    Specify the device type (Arc, iGPU)
+GOTO :eof
+
+:display-error
+echo Invalid Option: -%1 1>&2
+echo.
+CALL :display-help
+EXIT /B 1
+
+:parse-args
+IF "%~1"=="" GOTO args-done
+IF "%~1"=="-h" GOTO display-help
+IF "%~1"=="--help" GOTO display-help
+IF "%~1"=="-g" CALL :enable-gpu & echo DEBUG: ENABLE_GPU enabled & SHIFT & GOTO parse-args
+IF "%~1"=="--gpu" CALL :enable-gpu & echo DEBUG: ENABLE_GPU enabled & SHIFT & GOTO parse-args
+IF "%~1"=="--device" (
+    IF "%~2"=="" (
+        echo Error: --device option requires a value.
+        GOTO :eof
+    )
+    SET "DEVICE=%2"
+    SHIFT
+    SHIFT
+    GOTO parse-args
+)
+CALL :display-error %1
+EXIT /B 1
+
+:args-done
+
+:: Ensure -g and --device are used together or not at all
+IF "%ENABLE_GPU%"=="1" (
+    IF "%DEVICE%"=="" (
+        echo Error: --device must be specified with -g
+        GOTO display-help
+    )
+) ELSE IF NOT "%DEVICE%"=="" (
+    echo Error: -g must be specified with --device
+    GOTO display-help
+)
+
+IF "%ENABLE_GPU%"=="1" (
+    echo DEBUG: ENABLE_GPU is enabled and DEVICE is %DEVICE%
+    IF /I "%DEVICE%"=="Arc" (
+        SET SYCL_CACHE_PERSISTENT=1
+    ) ELSE IF /I "%DEVICE%"=="iGPU" (
+        SET SYCL_CACHE_PERSISTENT=1
+        SET BIGDL_LLM_XMX_DISABLED=1
+    ) ELSE (
+        echo Error: Invalid device type specified for GPU.
+        echo.
+        CALL :display-help
+        EXIT /B 1
+    )
+) ELSE (
+    CALL :unset-gpu-envs
+)
+
+CALL :display-var
+echo Complete.
+
+:end
+endlocal

python/llm/setup.py

@@ -344,7 +344,7 @@ def setup_package():
             'Programming Language :: Python :: Implementation :: CPython'],
         scripts={
             'Linux': ['src/ipex_llm/cli/llm-cli', 'src/ipex_llm/cli/llm-chat', 'scripts/ipex-llm-init'],
-            'Windows': ['src/ipex_llm/cli/llm-cli.ps1', 'src/ipex_llm/cli/llm-chat.ps1'],
+            'Windows': ['src/ipex_llm/cli/llm-cli.ps1', 'src/ipex_llm/cli/llm-chat.ps1', 'scripts/ipex-llm-init.bat'],
         }[platform_name],
         platforms=['windows']
     )