pub unsafe extern "C" fn cudaStreamAttachMemAsync(
stream: cudaStream_t,
devPtr: *mut c_void,
length: usize,
flags: c_uint,
) -> cudaError_t
pub unsafe extern "C" fn cudaStreamAttachMemAsync(
stream: cudaStream_t,
devPtr: *mut c_void,
length: usize,
flags: c_uint,
) -> cudaError_t