diff --git a/CMakeLists.txt b/CMakeLists.txt
index c53252bac77..f0ff5932c05 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -5,6 +5,10 @@ include(CheckIncludeFileCXX)
 
 set(SOVERSION 1)
 
+if (MSVC)
+    add_compile_options(/utf-8)
+endif()
+
 #set(CMAKE_WARN_DEPRECATED YES)
 set(CMAKE_WARN_UNUSED_CLI YES)
 
diff --git a/ggml/src/ggml-vulkan/vulkan-shaders/soft_max.comp b/ggml/src/ggml-vulkan/vulkan-shaders/soft_max.comp
index f9727679ec5..d372025b9f8 100644
--- a/ggml/src/ggml-vulkan/vulkan-shaders/soft_max.comp
+++ b/ggml/src/ggml-vulkan/vulkan-shaders/soft_max.comp
@@ -32,7 +32,7 @@ shared FLOAT_TYPE vals[BLOCK_SIZE];
 void soft_max(uint num_iters) {
     const uint tid = gl_LocalInvocationID.x;
     const uint rowx = gl_WorkGroupID.z * 262144 + gl_WorkGroupID.y * 512 + gl_WorkGroupID.x;
-    const uint rowy = rowx % p.KY;
+    const uint rowy = (p.KY > 0) ? (rowx % p.KY) : 0;
 
     if (rowx >= p.nrows_x) {
         return;
diff --git a/src/openvino/whisper-openvino-encoder.cpp b/src/openvino/whisper-openvino-encoder.cpp
index 4d9ce122858..0e8c0c9146d 100644
--- a/src/openvino/whisper-openvino-encoder.cpp
+++ b/src/openvino/whisper-openvino-encoder.cpp
@@ -2,6 +2,7 @@
 #include "ggml.h"
 #include <openvino/openvino.hpp>
 #include <iostream>
+#include <fstream>
 
 struct whisper_openvino_context {
     ov::InferRequest inferRequest;
@@ -28,7 +29,15 @@ struct whisper_openvino_context * whisper_openvino_init(const char* path_model,
             // routine. This speeds up calls to compile_model for successive runs.
             core.set_property(ov::cache_dir(cache_dir));
         }
+        // OpenVINOのバージョン情報を出力
+        std::cout << "OpenVINO version: " << ov::get_openvino_version() << std::endl;
 
+        // 利用可能なデバイスを出力
+        std::cout << "Available devices: ";
+        for (const auto& device : core.get_available_devices()) {
+            std::cout << device << " ";
+        }
+        std::cout << std::endl;
         //Read the OpenVINO encoder IR (.xml/.bin) from disk, producing an ov::Model object.
         std::shared_ptr<ov::Model> model = core.read_model(path_model);