link openmp

CMakeLists.txt

@@ -7,7 +7,11 @@ set(USE_CUDA ON CACHE BOOL "Compile with CUDA")
 set(USE_EIGEN OFF CACHE BOOL "Compile with Eigen")
 
 find_package(Threads REQUIRED)
-
+find_package(OpenMP REQUIRED)
+if (OPENMP_FOUND)
+    set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${OpenMP_C_FLAGS}")
+    set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${OpenMP_CXX_FLAGS}")
+endif()
 #find_package(MKL REQUIRED)
 #include_directories(${MKL_INCLUDE_DIRS})
 #link_directories(${MKL_LIBRARIES})
@@ -23,7 +27,6 @@ if (USE_CUDA)
     set(LINK_LIBRARY ${CUDA_cusparse_LIBRARY})
 else ()
     message("Compile without CUDA")
-    find_package(OpenMP REQUIRED)
 endif ()
 
 if (USE_EIGEN)