From: Bruno Turcksin <bruno.turcksin@gmail.com>
Date: Mon, 9 Jul 2018 19:04:43 +0000 (+0000)
Subject: Static variable cannot be allocated inside a __device__ function
X-Git-Tag: v9.1.0-rc1~932^2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F6905%2Fhead;p=dealii.git

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 88919243c8..558e4ae884 100644
--- 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;
     }