Switch CUBLAS to device-side pointer mode (#2616)

Co-authored-by: Tim Besard <tim.besard@gmail.com>

Author: kshyatt

lib/cublas/CUBLAS.jl

@@ -104,6 +104,7 @@ function handle()
         end
 
         cublasSetStream_v2(new_handle, cuda.stream)
+        cublasSetPointerMode_v2(new_handle, CUBLAS_POINTER_MODE_DEVICE)
         math_mode!(new_handle, cuda.math_mode)
 
         (; handle=new_handle, cuda.stream, cuda.math_mode)