Include ngraph in inference demo build.

test=develop

cmake/inference_lib.cmake

@@ -129,6 +129,15 @@ if (WITH_MKLDNN)
             )
 endif ()
 
+if (WITH_NGRAPH)
+    set(dst_dir "${FLUID_INSTALL_DIR}/third_party/install/ngraph")
+    copy(ngraph_lib
+            SRCS ${NGRAPH_INC_DIR} ${NGRAPH_LIB_DIR}
+            DSTS ${dst_dir} ${dst_dir}
+            DEPS ngraph
+            )
+endif ()
+
 if (NOT WIN32)
     if (NOT MOBILE_INFERENCE AND NOT RPI)
         set(dst_dir "${FLUID_INSTALL_DIR}/third_party/install/snappy")

paddle/fluid/inference/api/demo_ci/CMakeLists.txt

@@ -79,6 +79,21 @@ link_directories("${PADDLE_LIB}/third_party/install/gflags/lib")
 link_directories("${PADDLE_LIB}/third_party/install/xxhash/lib")
 link_directories("${PADDLE_LIB}/paddle/lib")
 
+if (NOT WIN32)
+    set(NGRAPH_PATH "${PADDLE_LIB}/third_party/install/ngraph")
+    if(EXISTS ${NGRAPH_PATH})
+        include_directories("${NGRAPH_PATH}/include")
+        if(UNIX AND NOT APPLE)
+            include(GNUInstallDirs)
+            link_directories("${NGRAPH_PATH}/${CMAKE_INSTALL_LIBDIR}")
+            set(NGRAPH_LIB ${NGRAPH_PATH}/${CMAKE_INSTALL_LIBDIR}/libngraph${CMAKE_SHARED_LIBRARY_SUFFIX})
+        else()
+            link_directories("${NGRAPH_PATH}/lib")
+            set(NGRAPH_LIB ${NGRAPH_PATH}/lib/libngraph${CMAKE_SHARED_LIBRARY_SUFFIX})
+        endif()
+    endif()
+endif()
+
 add_executable(${DEMO_NAME} ${DEMO_NAME}.cc)
 
 if(WITH_MKL)
@@ -106,7 +121,7 @@ endif()
 if (NOT WIN32)
 set(EXTERNAL_LIB "-lrt -ldl -lpthread")
 set(DEPS ${DEPS}
-    ${MATH_LIB} ${MKLDNN_LIB}
+    ${MATH_LIB} ${MKLDNN_LIB} ${NGRAPH_LIB}
     glog gflags protobuf snappystream snappy z xxhash
     ${EXTERNAL_LIB})
 else()