diff --git a/CUDA/init_gpu.h b/CUDA/init_gpu.h
new file mode 100644
index 0000000000000000000000000000000000000000..6b46d4e9bb64f5b4204da2531ffb4e204a3dafdb
--- /dev/null
+++ b/CUDA/init_gpu.h
@@ -0,0 +1,3 @@
+void init_gpu();
+
+double timeval_diff(struct timeval *a, struct timeval *b);