disable anakin when cuda < 8.0 or cudnn < 7.0

cmake/configure.cmake

@@ -103,15 +103,17 @@ if(WITH_GPU)
     endif()
     if(WITH_ANAKIN)
         if(${CUDA_VERSION_MAJOR} VERSION_LESS 8)
-            message(FATAL_ERROR "Anakin needs CUDA >= 8.0 to compile")
+            message(WARNING "Anakin needs CUDA >= 8.0 to compile. Force WITH_ANAKIN=OFF")
+            set(WITH_ANAKIN OFF CACHE STRING "Anakin is valid only when CUDA >= 8.0." FORCE)
         endif()
         if(${CUDNN_MAJOR_VERSION} VERSION_LESS 7)
-            message(FATAL_ERROR "Anakin needs CUDNN >= 7.0 to compile")
+            message(WARNING "Anakin needs CUDNN >= 7.0 to compile. Force WITH_ANAKIN=OFF")
+            set(WITH_ANAKIN OFF CACHE STRING "Anakin is valid only when CUDNN >= 7.0." FORCE)
         endif()
+    endif()
+    if(WITH_ANAKIN)
         set(ENV{CUDNN_INCLUDE_DIR} ${CUDNN_INCLUDE_DIR})
         set(ENV{CUDNN_LIBRARY} ${CUDNN_LIBRARY})
-        message(STATUS "cudnn include header is ${CUDNN_INCLUDE_DIR}/cudnn.h")
-        message(STATUS "cudnn library is ${CUDNN_LIBRARY}")
     endif()
 elseif(WITH_AMD_GPU)
     add_definitions(-DPADDLE_WITH_HIP)

paddle/fluid/inference/api/CMakeLists.txt

@@ -62,13 +62,13 @@ endif()
 
 if (WITH_ANAKIN AND WITH_GPU) # only needed in CI
     # compile the libinference_anakin_api.a and anakin.so.
-    nv_library(inference_anakin_api SRCS api.cc api_anakin_engine.cc DEPS anakin_shared anakin_saber)
-    #nv_library(inference_anakin_api_shared SHARED SRCS api.cc api_anakin_engine.cc DEPS anakin)
+    cc_library(inference_anakin_api SRCS api.cc api_anakin_engine.cc DEPS anakin_shared anakin_saber)
+    cc_library(inference_anakin_api_shared SHARED SRCS api.cc api_anakin_engine.cc DEPS anakin_shared anakin_saber)
     function(anakin_target target_name)
       target_compile_options(${target_name} BEFORE PUBLIC ${ANAKIN_COMPILE_EXTRA_FLAGS})
     endfunction()
     anakin_target(inference_anakin_api)
-    #anakin_target(inference_anakin_api_shared)
+    anakin_target(inference_anakin_api_shared)
     if (WITH_TESTING)
         cc_test(inference_anakin_test SRCS api_anakin_engine_tester.cc
                 ARGS --model=${ANAKIN_SOURCE_DIR}/mobilenet_v2.anakin.bin