diff --git a/cpp_thread_test/gemm64.cpp b/cpp_thread_test/gemm64.cpp
deleted file mode 100644
index df38416fa..000000000
--- a/cpp_thread_test/gemm64.cpp
+++ /dev/null
@@ -1,21 +0,0 @@
-#include <iostream>
-#include "common.h"
-#include "cblas.h"
-int main ( int argc, char* argv[] ) {
-    const long n = ((long)1 << 31) - 1;
-    std::cout << n <<std::endl;
-    float*  A = new float[n];
-    float*  B = new float[n];
-    float*  C = new float[1];
-    for(long i =0; i <n; i++){
-        A[i] = 1;
-        B[i] = 1;
-
-    }
-    cblas_sgemm(CblasRowMajor, CblasNoTrans, CblasNoTrans, 1, 1, n,  1.0, A, n, B, 1, 0.0, C, 1);
-    std::cout << *C <<std::endl;
-    delete[] A;
-    delete[] B;
-    delete[] C;
-    return 0;
-}