As the cuda warnings are different on each platform and super badly...

As the cuda warnings are different on each platform and super badly documented, we switch to suppress all warnings for the GridGenerator.

CMakeLists.txt

@@ -113,8 +113,6 @@ if(BUILD_VF_GPU)
 
     set(CMAKE_CUDA_STANDARD_REQUIRED TRUE)
 
-    set(CMAKE_CUDA_FLAGS "${CMAKE_CUDA_FLAGS} -Xcudafe --display_error_number")
-
     if(NOT DEFINED CMAKE_CUDA_ARCHITECTURES)
         message(WARNING "CMAKE_CUDA_ARCHITECTURES was not defined and is set to 30 (CUDA support until 10.1 only).")
         set(CMAKE_CUDA_ARCHITECTURES 30)

src/gpu/GridGenerator/CMakeLists.txt

@@ -12,19 +12,5 @@ if (NOT BUILD_SHARED_LIBRARY)
     set_target_properties(${library_name} PROPERTIES CUDA_RESOLVE_DEVICE_SYMBOLS ON)
 endif()
 
-# suppress warning 3123, 3126: calling a __host__ function from __host__ __device__ is not allowed
-# suppress warning 3152: __host__ function redeclared with __host__ __device__, hence treated as a __host__ __device__ function
-# suppress warning 3125, 3127: calling a constexpr __host__ function from a __host__ __device__ function
-set(cuda_warnings_suppressions "--diag_suppress=3123 --diag_suppress=3126 --diag_suppress=3152 --diag_suppress=3125 --diag_suppress=3127")
-
-# suppress warning 3311: unrecognized #pragma in device code
-if(NOT MSVC)
-    set(cuda_warnings_suppressions "${cuda_warnings_suppressions} --diag_suppress=3311")
-endif()
-
-# suppress warning 2979: calling a __host__ function from __host__ __device__ is not allowed
-if(MSVC)
-    set(cuda_warnings_suppressions "${cuda_warnings_suppressions} --diag_suppress=2979 --diag_suppress=2976 --diag_suppress=3005 --diag_suppress=2978 --diag_suppress=3009")
-endif()
-
-target_compile_options(${library_name} PUBLIC $<$<COMPILE_LANGUAGE:CUDA>:-Xcudafe ${cuda_warnings_suppressions} >)
+# we want to suppress all cuda warnings so far for this library.
+target_compile_options(${library_name} PUBLIC $<$<COMPILE_LANGUAGE:CUDA>:-Xcudafe "-w" >)