diff --git a/examples/cli/main.cpp b/examples/cli/main.cpp
index ed3f849..bc54442 100644
--- a/examples/cli/main.cpp
+++ b/examples/cli/main.cpp
@@ -1306,7 +1306,7 @@ void parse_args(int argc, const char** argv, SDParams& params) {
     }
 
     if (params.n_threads <= 0) {
-        params.n_threads = get_num_physical_cores();
+        params.n_threads = sd_get_num_physical_cores();
     }
 
     if ((params.mode == IMG_GEN || params.mode == VID_GEN) && params.prompt.length() == 0) {
diff --git a/model.cpp b/model.cpp
index 1f0ad82..f771d4e 100644
--- a/model.cpp
+++ b/model.cpp
@@ -265,8 +265,8 @@ void convert_tensor(void* src,
         } else {
             auto qtype = ggml_get_type_traits(src_type);
             if (qtype->to_float == nullptr) {
-                throw std::runtime_error(format("type %s unsupported for integer quantization: no dequantization available",
-                                                ggml_type_name(src_type)));
+                throw std::runtime_error(sd_format("type %s unsupported for integer quantization: no dequantization available",
+                                                   ggml_type_name(src_type)));
             }
             qtype->to_float(src, (float*)dst, n);
         }
@@ -275,8 +275,8 @@ void convert_tensor(void* src,
         // src_type is quantized => dst_type == GGML_TYPE_F16 or dst_type is quantized
         auto qtype = ggml_get_type_traits(src_type);
         if (qtype->to_float == nullptr) {
-            throw std::runtime_error(format("type %s unsupported for integer quantization: no dequantization available",
-                                            ggml_type_name(src_type)));
+            throw std::runtime_error(sd_format("type %s unsupported for integer quantization: no dequantization available",
+                                               ggml_type_name(src_type)));
         }
         std::vector<char> buf;
         buf.resize(sizeof(float) * n);
@@ -1355,7 +1355,7 @@ bool ModelLoader::load_tensors(on_new_tensor_cb_t on_new_tensor_cb, int n_thread
     std::atomic<int64_t> copy_to_backend_time_ms(0);
     std::atomic<int64_t> convert_time_ms(0);
 
-    int num_threads_to_use = n_threads_p > 0 ? n_threads_p : get_num_physical_cores();
+    int num_threads_to_use = n_threads_p > 0 ? n_threads_p : sd_get_num_physical_cores();
     LOG_DEBUG("using %d threads for model loading", num_threads_to_use);
 
     int64_t start_time = ggml_time_ms();
diff --git a/stable-diffusion.cpp b/stable-diffusion.cpp
index 8bebba2..7306561 100644
--- a/stable-diffusion.cpp
+++ b/stable-diffusion.cpp
@@ -2474,7 +2474,7 @@ void sd_ctx_params_init(sd_ctx_params_t* sd_ctx_params) {
     *sd_ctx_params                         = {};
     sd_ctx_params->vae_decode_only         = true;
     sd_ctx_params->free_params_immediately = true;
-    sd_ctx_params->n_threads               = get_num_physical_cores();
+    sd_ctx_params->n_threads               = sd_get_num_physical_cores();
     sd_ctx_params->wtype                   = SD_TYPE_COUNT;
     sd_ctx_params->rng_type                = CUDA_RNG;
     sd_ctx_params->sampler_rng_type        = RNG_TYPE_COUNT;
diff --git a/stable-diffusion.h b/stable-diffusion.h
index 0cbefd9..b0d3ee6 100644
--- a/stable-diffusion.h
+++ b/stable-diffusion.h
@@ -288,7 +288,7 @@ typedef void (*sd_preview_cb_t)(int step, int frame_count, sd_image_t* frames, b
 SD_API void sd_set_log_callback(sd_log_cb_t sd_log_cb, void* data);
 SD_API void sd_set_progress_callback(sd_progress_cb_t cb, void* data);
 SD_API void sd_set_preview_callback(sd_preview_cb_t cb, enum preview_t mode, int interval, bool denoised, bool noisy, void* data);
-SD_API int32_t get_num_physical_cores();
+SD_API int32_t sd_get_num_physical_cores();
 SD_API const char* sd_get_system_info();
 
 SD_API const char* sd_type_name(enum sd_type_t type);
diff --git a/util.cpp b/util.cpp
index f101c3b..68250a9 100644
--- a/util.cpp
+++ b/util.cpp
@@ -57,7 +57,7 @@ void replace_all_chars(std::string& str, char target, char replacement) {
     }
 }
 
-std::string format(const char* fmt, ...) {
+std::string sd_format(const char* fmt, ...) {
     va_list ap;
     va_list ap2;
     va_start(ap, fmt);
@@ -148,7 +148,7 @@ std::string get_full_path(const std::string& dir, const std::string& filename) {
 // get_num_physical_cores is copy from
 // https://github.com/ggerganov/llama.cpp/blob/master/examples/common.cpp
 // LICENSE: https://github.com/ggerganov/llama.cpp/blob/master/LICENSE
-int32_t get_num_physical_cores() {
+int32_t sd_get_num_physical_cores() {
 #ifdef __linux__
     // enumerate the set of thread siblings, num entries is num cores
     std::unordered_set<std::string> siblings;
diff --git a/util.h b/util.h
index 2721f29..61ca933 100644
--- a/util.h
+++ b/util.h
@@ -14,7 +14,7 @@ bool ends_with(const std::string& str, const std::string& ending);
 bool starts_with(const std::string& str, const std::string& start);
 bool contains(const std::string& str, const std::string& substr);
 
-std::string format(const char* fmt, ...);
+std::string sd_format(const char* fmt, ...);
 
 void replace_all_chars(std::string& str, char target, char replacement);