Code inspection: A memory space local variable must be 'extern' or 'static'

This inspection reports an automatic local variable declared with one of the CUDA memory space specifiers __device__, __constant__, __managed__, or __tile__. A local variable with these specifiers needs to be extern or static.

Example

                __device__ void process()
                {
                    __device__ int cache;
                }
            

                __device__ void process()
                {
                    static __device__ int cache;
                }
            

If you need a local variable shared by all threads of a block in device code, use __shared__.

27 October 2026