fix

Author: davebayer

libcudacxx/include/cuda/__launch/launch.h

@@ -351,24 +351,27 @@ template <class _Kernel, class _Config, class... _Args>
   using _BlockDesc = typename _Hierarchy::template level_desc_type<block_level>;
   using _BlockExts = typename _BlockDesc::extents_type;
 
-  if constexpr (_Hierarchy::has_level(cluster))
+  if constexpr (_BlockExts::rank_dynamic() != 0)
+  {
+    return ::cuda::__kernel_launcher<_Config, _Kernel, _Args...>;
+  }
+  else if constexpr (_Hierarchy::has_level(cluster))
   {
     using _ClusterDesc = typename _Hierarchy::template level_desc_type<cluster_level>;
     using _ClusterExts = typename _ClusterDesc::extents_type;
 
-    if constexpr (_BlockExts::rank_dynamic() == 0 && _ClusterExts::rank_dynamic() == 0)
+    if constexpr (_ClusterExts::rank_dynamic() == 0)
     {
       return ::cuda::__kernel_launcher_with_block_size<_Config, _Kernel, _Args...>;
     }
-  }
-
-  if constexpr (_BlockExts::rank_dynamic() == 0)
-  {
-    return ::cuda::__kernel_launcher_with_launch_bounds<_Config, _Kernel, _Args...>;
+    else
+    {
+      return ::cuda::__kernel_launcher_with_launch_bounds<_Config, _Kernel, _Args...>;
+    }
   }
   else
   {
-    return ::cuda::__kernel_launcher<_Config, _Kernel, _Args...>;
+    return ::cuda::__kernel_launcher_with_launch_bounds<_Config, _Kernel, _Args...>;
   }
 }