From 1b2aa950cbf5f28dfbe3e76705534df57196cce2 Mon Sep 17 00:00:00 2001
From: Konstantin <const@const.me>
Date: Sat, 11 Mar 2023 18:05:41 +0100
Subject: [PATCH] C++ CLI app, added arguments to select a GPU to use

---
 Examples/main/main.cpp   |  6 ++++--
 Examples/main/params.cpp | 24 ++++++++++++++++++++++++
 Examples/main/params.h   |  1 +
 3 files changed, 29 insertions(+), 2 deletions(-)

diff --git a/Examples/main/main.cpp b/Examples/main/main.cpp
index 29b92fc..677381e 100644
--- a/Examples/main/main.cpp
+++ b/Examples/main/main.cpp
@@ -10,11 +10,13 @@ using namespace Whisper;
 
 #define STREAM_AUDIO 1
 
-static HRESULT loadWhisperModel( const wchar_t* path, iModel** pp )
+static HRESULT loadWhisperModel( const wchar_t* path, const std::wstring& gpu, iModel** pp )
 {
 	using namespace Whisper;
 	sModelSetup setup;
 	setup.impl = eModelImplementation::GPU;
+	if( !gpu.empty() )
+		setup.adapter = gpu.c_str();
 	return Whisper::loadModel( path, setup, nullptr, pp );
 }
 
@@ -199,7 +201,7 @@ int wmain( int argc, wchar_t* argv[] )
 	}
 
 	ComLight::CComPtr<iModel> model;
-	HRESULT hr = loadWhisperModel( params.model.c_str(), &model );
+	HRESULT hr = loadWhisperModel( params.model.c_str(), params.gpu, &model );
 	if( FAILED( hr ) )
 	{
 		printError( "failed to load the model", hr );
diff --git a/Examples/main/params.cpp b/Examples/main/params.cpp
index ff1cfdd..d6d6ae9 100644
--- a/Examples/main/params.cpp
+++ b/Examples/main/params.cpp
@@ -2,6 +2,7 @@
 #include <algorithm>
 #include <thread>
 #include "miscUtils.h"
+#include "../../Whisper/API/iContext.cl.h"
 
 whisper_params::whisper_params()
 {
@@ -27,6 +28,8 @@ void whisper_print_usage( int argc, wchar_t** argv, const whisper_params& params
 	fprintf( stderr, "\n" );
 	fprintf( stderr, "options:\n" );
 	fprintf( stderr, "  -h,       --help          [default] show this help message and exit\n" );
+	fprintf( stderr, "  -la,      --list-adapters List graphic adapters and exit\n" );
+	fprintf( stderr, "  -gpu,     --use-gpu       The graphic adapter to use for inference\n" );
 	fprintf( stderr, "  -t N,     --threads N     [%-7d] number of threads to use during computation\n", params.n_threads );
 	fprintf( stderr, "  -p N,     --processors N  [%-7d] number of processors to use during computation\n", params.n_processors );
 	fprintf( stderr, "  -ot N,    --offset-t N    [%-7d] time offset in milliseconds\n", params.offset_t_ms );
@@ -51,6 +54,20 @@ void whisper_print_usage( int argc, wchar_t** argv, const whisper_params& params
 	fprintf( stderr, "\n" );
 }
 
+static void __stdcall pfnListAdapter( const wchar_t* name, void* )
+{
+	wprintf( L"\"%s\"\n", name );
+}
+
+static void listGpus()
+{
+	printf( "    Available graphic adapters:\n" );
+	HRESULT hr = Whisper::listGPUs( &pfnListAdapter, nullptr );
+	if( SUCCEEDED( hr ) )
+		return;
+	printError( "Unable to enumerate GPUs", hr );
+}
+
 bool whisper_params::parse( int argc, wchar_t* argv[] )
 {
 	for( int i = 1; i < argc; i++ )
@@ -69,6 +86,12 @@ bool whisper_params::parse( int argc, wchar_t* argv[] )
 			return false;
 		}
 
+		if( arg == L"-la" || arg == L"--list-adapters" )
+		{
+			listGpus();
+			return false;
+		}
+
 		else if( arg == L"-t" || arg == L"--threads" ) { n_threads = std::stoul( argv[ ++i ] ); }
 		else if( arg == L"-p" || arg == L"--processors" ) { n_processors = std::stoul( argv[ ++i ] ); }
 		else if( arg == L"-ot" || arg == L"--offset-t" ) { offset_t_ms = std::stoul( argv[ ++i ] ); }
@@ -90,6 +113,7 @@ bool whisper_params::parse( int argc, wchar_t* argv[] )
 		else if( arg == L"-l" || arg == L"--language" ) { language = utf8( argv[ ++i ] ); }
 		else if( arg == L"-m" || arg == L"--model" ) { model = argv[ ++i ]; }
 		else if( arg == L"-f" || arg == L"--file" ) { fname_inp.push_back( argv[ ++i ] ); }
+		else if( arg == L"-gpu" || arg == L"--use-gpu" ) { gpu = argv[ ++i ]; }
 		else
 		{
 			fprintf( stderr, "error: unknown argument: %S\n", arg.c_str() );
diff --git a/Examples/main/params.h b/Examples/main/params.h
index 9eb2b04..d8c2dcc 100644
--- a/Examples/main/params.h
+++ b/Examples/main/params.h
@@ -28,6 +28,7 @@ struct whisper_params
 
 	std::string language = "en";
 	std::wstring model = L"models/ggml-base.en.bin";
+	std::wstring gpu;
 	std::vector<std::wstring> fname_inp;
 
 	whisper_params();