diff --git a/common/arg.cpp b/common/arg.cpp
index 5fbc9022c02..43909265b3b 100644
--- a/common/arg.cpp
+++ b/common/arg.cpp
@@ -1111,7 +1111,7 @@ common_params_context common_params_parser_init(common_params & params, llama_ex
         [](common_params & params, int value) {
             params.cpuparams.n_threads = value;
             if (params.cpuparams.n_threads <= 0) {
-                params.cpuparams.n_threads = std::thread::hardware_concurrency();
+                params.cpuparams.n_threads = cpu_get_num_math();
             }
         }
     ).set_env("LLAMA_ARG_THREADS"));
@@ -1121,7 +1121,7 @@ common_params_context common_params_parser_init(common_params & params, llama_ex
         [](common_params & params, int value) {
             params.cpuparams_batch.n_threads = value;
             if (params.cpuparams_batch.n_threads <= 0) {
-                params.cpuparams_batch.n_threads = std::thread::hardware_concurrency();
+                params.cpuparams_batch.n_threads = cpu_get_num_math();
             }
         }
     ));
@@ -3216,7 +3216,7 @@ common_params_context common_params_parser_init(common_params & params, llama_ex
         [](common_params & params, int value) {
             params.speculative.cpuparams.n_threads = value;
             if (params.speculative.cpuparams.n_threads <= 0) {
-                params.speculative.cpuparams.n_threads = std::thread::hardware_concurrency();
+                params.speculative.cpuparams.n_threads = cpu_get_num_math();
             }
         }
     ).set_examples({LLAMA_EXAMPLE_SPECULATIVE, LLAMA_EXAMPLE_SERVER}));
@@ -3226,7 +3226,7 @@ common_params_context common_params_parser_init(common_params & params, llama_ex
         [](common_params & params, int value) {
             params.speculative.cpuparams_batch.n_threads = value;
             if (params.speculative.cpuparams_batch.n_threads <= 0) {
-                params.speculative.cpuparams_batch.n_threads = std::thread::hardware_concurrency();
+                params.speculative.cpuparams_batch.n_threads = cpu_get_num_math();
             }
         }
     ).set_examples({LLAMA_EXAMPLE_SPECULATIVE, LLAMA_EXAMPLE_SERVER}));