Static variable cannot be allocated inside a __device__ function

Fix the following error:
dynamic initialization is not supported for function-scope static
variables within a __device__/__global__ function

diff --git a/include/deal.II/base/tensor.h b/include/deal.II/base/tensor.h
index 88919243c87b1597fa334d7acc8bfd3dd3d2abbf..558e4ae8843a6c27140d4c5c61e0a736a1eecd07 100644 (file)
--- a/include/deal.II/base/tensor.h
+++ b/include/deal.II/base/tensor.h
@@ -1079,18 +1079,15 @@ namespace internal
 
 
     template <typename ArrayElementType>
-    DEAL_II_CUDA_HOST_DEV ArrayElementType &
-                          subscript(ArrayElementType *,
-                                    const unsigned int,
-                                    std::integral_constant<int, 0>)
+    ArrayElementType &
+    subscript(ArrayElementType *,
+              const unsigned int,
+              std::integral_constant<int, 0>)
     {
-      // We cannot use Assert in a CUDA kernel
-#ifndef __CUDA_ARCH__
       Assert(
         false,
         ExcMessage(
           "Cannot access elements of an object of type Tensor<rank,0,Number>."));
-#endif
       static ArrayElementType t;
       return t;
     }