fix unknown flag

paddle/fluid/platform/cpu_helper.cc

@@ -24,9 +24,6 @@ limitations under the License. */
 #include <cblas.h>
 #endif
 
-DEFINE_int32(paddle_num_threads, 1,
-             "Number of threads for each paddle instance.");
-
 namespace paddle {
 namespace platform {
 

paddle/fluid/platform/init.cc

@@ -23,7 +23,8 @@ limitations under the License. */
 #include "paddle/fluid/platform/place.h"
 #include "paddle/fluid/string/piece.h"
 
-DECLARE_int32(paddle_num_threads);
+DEFINE_int32(paddle_num_threads, 1,
+             "Number of threads for each paddle instance.");
 
 namespace paddle {
 namespace framework {